From 6bd2c7bb386de16310fa5534275e6e638be60862 Mon Sep 17 00:00:00 2001 From: Eelco Dolstra Date: Fri, 17 Jul 2015 19:24:28 +0200 Subject: [PATCH] OCD: foreach -> C++11 ranged for --- src/download-via-ssh/download-via-ssh.cc | 8 +- src/libexpr/attr-path.cc | 5 +- src/libexpr/eval.cc | 90 +++---- src/libexpr/get-drvs.cc | 20 +- src/libexpr/names.cc | 4 +- src/libexpr/nixexpr.cc | 92 +++---- src/libexpr/parser.y | 20 +- src/libexpr/primops.cc | 95 ++++---- src/libexpr/value-to-json.cc | 28 +-- src/libexpr/value-to-xml.cc | 40 ++-- src/libstore/build.cc | 204 ++++++++-------- src/libstore/derivations.cc | 38 +-- src/libstore/gc.cc | 43 ++-- src/libstore/globals.cc | 16 +- src/libstore/local-store.cc | 146 ++++++------ src/libstore/misc.cc | 86 +++---- src/libstore/optimise-store.cc | 14 +- src/libstore/pathlocks.cc | 27 +-- src/libstore/references.cc | 20 +- src/libstore/remote-store.cc | 28 +-- src/libstore/store-api.cc | 44 ++-- src/libutil/serialise.cc | 4 +- src/libutil/util.cc | 8 +- src/libutil/util.hh | 7 - src/libutil/xml-writer.cc | 8 +- src/nix-daemon/nix-daemon.cc | 18 +- src/nix-env/nix-env.cc | 260 ++++++++++---------- src/nix-env/user-env.cc | 44 ++-- src/nix-instantiate/nix-instantiate.cc | 16 +- src/nix-store/nix-store.cc | 290 +++++++++++------------ 30 files changed, 849 insertions(+), 874 deletions(-) diff --git a/src/download-via-ssh/download-via-ssh.cc b/src/download-via-ssh/download-via-ssh.cc index f71cf5650..73f886094 100644 --- a/src/download-via-ssh/download-via-ssh.cc +++ b/src/download-via-ssh/download-via-ssh.cc @@ -64,8 +64,8 @@ static void query(std::pair & pipes) writeStrings(tokenized, pipes.first); pipes.first.flush(); PathSet paths = readStrings(pipes.second); - foreach (PathSet::iterator, i, paths) - std::cout << *i << std::endl; + for (auto & i : paths) + std::cout << i << std::endl; } else if (cmd == "info") { writeInt(cmdQueryPathInfos, pipes.first); writeStrings(tokenized, pipes.first); @@ -80,8 +80,8 @@ static void query(std::pair & pipes) std::cout << deriver << std::endl; PathSet references = readStorePaths(pipes.second); std::cout << references.size() << std::endl; - foreach (PathSet::iterator, i, references) - std::cout << *i << std::endl; + for (auto & i : references) + std::cout << i << std::endl; std::cout << readLongLong(pipes.second) << std::endl; std::cout << readLongLong(pipes.second) << std::endl; } diff --git a/src/libexpr/attr-path.cc b/src/libexpr/attr-path.cc index fdd61a5fd..a4945111e 100644 --- a/src/libexpr/attr-path.cc +++ b/src/libexpr/attr-path.cc @@ -42,11 +42,10 @@ Value * findAlongAttrPath(EvalState & state, const string & attrPath, Value * v = &vIn; - foreach (Strings::iterator, i, tokens) { + for (auto & attr : tokens) { - /* Is *i an index (integer) or a normal attribute name? */ + /* Is i an index (integer) or a normal attribute name? */ enum { apAttr, apIndex } apType = apAttr; - string attr = *i; unsigned int attrIndex; if (string2Int(attr, attrIndex)) apType = apIndex; diff --git a/src/libexpr/eval.cc b/src/libexpr/eval.cc index 7b74d99b1..b1436b842 100644 --- a/src/libexpr/eval.cc +++ b/src/libexpr/eval.cc @@ -98,8 +98,8 @@ static void printValue(std::ostream & str, std::set & active, con str << "{ "; typedef std::map Sorted; Sorted sorted; - foreach (Bindings::iterator, i, *v.attrs) - sorted[i->name] = i->value; + for (auto & i : *v.attrs) + sorted[i.name] = i.value; for (auto & i : sorted) { str << i.first << " = "; printValue(str, active, *i.second); @@ -442,8 +442,8 @@ void mkString(Value & v, const string & s, const PathSet & context) unsigned int n = 0; v.string.context = (const char * *) allocBytes((context.size() + 1) * sizeof(char *)); - foreach (PathSet::const_iterator, i, context) - v.string.context[n++] = dupString(i->c_str()); + for (auto & i : context) + v.string.context[n++] = dupString(i.c_str()); v.string.context[n] = 0; } } @@ -723,15 +723,15 @@ void ExprAttrs::eval(EvalState & state, Env & env, Value & v) environment, while the inherited attributes are evaluated in the original environment. */ unsigned int displ = 0; - foreach (AttrDefs::iterator, i, attrs) { + for (auto & i : attrs) { Value * vAttr; - if (hasOverrides && !i->second.inherited) { + if (hasOverrides && !i.second.inherited) { vAttr = state.allocValue(); - mkThunk(*vAttr, env2, i->second.e); + mkThunk(*vAttr, env2, i.second.e); } else - vAttr = i->second.e->maybeThunk(state, i->second.inherited ? env : env2); + vAttr = i.second.e->maybeThunk(state, i.second.inherited ? env : env2); env2.values[displ++] = vAttr; - v.attrs->push_back(Attr(i->first, vAttr, &i->second.pos)); + v.attrs->push_back(Attr(i.first, vAttr, &i.second.pos)); } /* If the rec contains an attribute called `__overrides', then @@ -762,13 +762,13 @@ void ExprAttrs::eval(EvalState & state, Env & env, Value & v) } else - foreach (AttrDefs::iterator, i, attrs) - v.attrs->push_back(Attr(i->first, i->second.e->maybeThunk(state, env), &i->second.pos)); + for (auto & i : attrs) + v.attrs->push_back(Attr(i.first, i.second.e->maybeThunk(state, env), &i.second.pos)); /* Dynamic attrs apply *after* rec and __overrides. */ - foreach (DynamicAttrDefs::iterator, i, dynamicAttrs) { + for (auto & i : dynamicAttrs) { Value nameVal; - i->nameExpr->eval(state, *dynamicEnv, nameVal); + i.nameExpr->eval(state, *dynamicEnv, nameVal); state.forceValue(nameVal); if (nameVal.type == tNull) continue; @@ -776,11 +776,11 @@ void ExprAttrs::eval(EvalState & state, Env & env, Value & v) Symbol nameSym = state.symbols.create(nameVal.string.s); Bindings::iterator j = v.attrs->find(nameSym); if (j != v.attrs->end()) - throwEvalError("dynamic attribute ‘%1%’ at %2% already defined at %3%", nameSym, i->pos, *j->pos); + throwEvalError("dynamic attribute ‘%1%’ at %2% already defined at %3%", nameSym, i.pos, *j->pos); - i->valueExpr->setName(nameSym); + i.valueExpr->setName(nameSym); /* Keep sorted order so find can catch duplicates */ - v.attrs->push_back(Attr(nameSym, i->valueExpr->maybeThunk(state, *dynamicEnv), &i->pos)); + v.attrs->push_back(Attr(nameSym, i.valueExpr->maybeThunk(state, *dynamicEnv), &i.pos)); v.attrs->sort(); // FIXME: inefficient } } @@ -797,8 +797,8 @@ void ExprLet::eval(EvalState & state, Env & env, Value & v) while the inherited attributes are evaluated in the original environment. */ unsigned int displ = 0; - foreach (ExprAttrs::AttrDefs::iterator, i, attrs->attrs) - env2.values[displ++] = i->second.e->maybeThunk(state, i->second.inherited ? env : env2); + for (auto & i : attrs->attrs) + env2.values[displ++] = i.second.e->maybeThunk(state, i.second.inherited ? env : env2); body->eval(state, env2, v); } @@ -849,10 +849,10 @@ void ExprSelect::eval(EvalState & state, Env & env, Value & v) try { - foreach (AttrPath::const_iterator, i, attrPath) { + for (auto & i : attrPath) { nrLookups++; Bindings::iterator j; - Symbol name = getName(*i, state, env); + Symbol name = getName(i, state, env); if (def) { state.forceValue(*vAttrs); if (vAttrs->type != tAttrs || @@ -891,10 +891,10 @@ void ExprOpHasAttr::eval(EvalState & state, Env & env, Value & v) e->eval(state, env, vTmp); - foreach (AttrPath::const_iterator, i, attrPath) { + for (auto & i : attrPath) { state.forceValue(*vAttrs); Bindings::iterator j; - Symbol name = getName(*i, state, env); + Symbol name = getName(i, state, env); if (vAttrs->type != tAttrs || (j = vAttrs->attrs->find(name)) == vAttrs->attrs->end()) { @@ -1007,12 +1007,12 @@ void EvalState::callFunction(Value & fun, Value & arg, Value & v, const Pos & po there is no matching actual argument but the formal argument has a default, use the default. */ unsigned int attrsUsed = 0; - foreach (Formals::Formals_::iterator, i, lambda.formals->formals) { - Bindings::iterator j = arg.attrs->find(i->name); + for (auto & i : lambda.formals->formals) { + Bindings::iterator j = arg.attrs->find(i.name); if (j == arg.attrs->end()) { - if (!i->def) throwTypeError("%1% called without required argument ‘%2%’, at %3%", - lambda, i->name, pos); - env2.values[displ++] = i->def->maybeThunk(*this, env2); + if (!i.def) throwTypeError("%1% called without required argument ‘%2%’, at %3%", + lambda, i.name, pos); + env2.values[displ++] = i.def->maybeThunk(*this, env2); } else { attrsUsed++; env2.values[displ++] = j->value; @@ -1024,9 +1024,9 @@ void EvalState::callFunction(Value & fun, Value & arg, Value & v, const Pos & po if (!lambda.formals->ellipsis && attrsUsed != arg.attrs->size()) { /* Nope, so show the first unexpected argument to the user. */ - foreach (Bindings::iterator, i, *arg.attrs) - if (lambda.formals->argNames.find(i->name) == lambda.formals->argNames.end()) - throwTypeError("%1% called with unexpected argument ‘%2%’, at %3%", lambda, i->name, pos); + for (auto & i : *arg.attrs) + if (lambda.formals->argNames.find(i.name) == lambda.formals->argNames.end()) + throwTypeError("%1% called with unexpected argument ‘%2%’, at %3%", lambda, i.name, pos); abort(); // can't happen } } @@ -1068,12 +1068,12 @@ void EvalState::autoCallFunction(Bindings & args, Value & fun, Value & res) Value * actualArgs = allocValue(); mkAttrs(*actualArgs, fun.lambda.fun->formals->formals.size()); - foreach (Formals::Formals_::iterator, i, fun.lambda.fun->formals->formals) { - Bindings::iterator j = args.find(i->name); + for (auto & i : fun.lambda.fun->formals->formals) { + Bindings::iterator j = args.find(i.name); if (j != args.end()) actualArgs->attrs->push_back(*j); - else if (!i->def) - throwTypeError("cannot auto-call a function that has an argument without a default value (‘%1%’)", i->name); + else if (!i.def) + throwTypeError("cannot auto-call a function that has an argument without a default value (‘%1%’)", i.name); } actualArgs->attrs->sort(); @@ -1229,9 +1229,9 @@ void ExprConcatStrings::eval(EvalState & state, Env & env, Value & v) bool first = !forceString; ValueType firstType = tString; - foreach (vector::iterator, i, *es) { + for (auto & i : *es) { Value vTmp; - (*i)->eval(state, env, vTmp); + i->eval(state, env, vTmp); /* If the first element is a path, then the result will also be a path, we don't copy anything (yet - that's done later, @@ -1583,25 +1583,25 @@ void EvalState::printStats() printMsg(v, format("calls to %1% primops:") % primOpCalls.size()); typedef std::multimap PrimOpCalls_; PrimOpCalls_ primOpCalls_; - foreach (PrimOpCalls::iterator, i, primOpCalls) - primOpCalls_.insert(std::pair(i->second, i->first)); - foreach_reverse (PrimOpCalls_::reverse_iterator, i, primOpCalls_) + for (auto & i : primOpCalls) + primOpCalls_.insert(std::pair(i.second, i.first)); + for (auto i = primOpCalls_.rbegin(); i != primOpCalls_.rend(); ++i) printMsg(v, format("%1$10d %2%") % i->first % i->second); printMsg(v, format("calls to %1% functions:") % functionCalls.size()); typedef std::multimap FunctionCalls_; FunctionCalls_ functionCalls_; - foreach (FunctionCalls::iterator, i, functionCalls) - functionCalls_.insert(std::pair(i->second, i->first)); - foreach_reverse (FunctionCalls_::reverse_iterator, i, functionCalls_) + for (auto & i : functionCalls) + functionCalls_.insert(std::pair(i.second, i.first)); + for (auto i = functionCalls_.rbegin(); i != functionCalls_.rend(); ++i) printMsg(v, format("%1$10d %2%") % i->first % i->second->showNamePos()); printMsg(v, format("evaluations of %1% attributes:") % attrSelects.size()); typedef std::multimap AttrSelects_; AttrSelects_ attrSelects_; - foreach (AttrSelects::iterator, i, attrSelects) - attrSelects_.insert(std::pair(i->second, i->first)); - foreach_reverse (AttrSelects_::reverse_iterator, i, attrSelects_) + for (auto & i : attrSelects) + attrSelects_.insert(std::pair(i.second, i.first)); + for (auto i = attrSelects_.rbegin(); i != attrSelects_.rend(); ++i) printMsg(v, format("%1$10d %2%") % i->first % i->second); } diff --git a/src/libexpr/get-drvs.cc b/src/libexpr/get-drvs.cc index 1c9fa02a3..b7c3b0d33 100644 --- a/src/libexpr/get-drvs.cc +++ b/src/libexpr/get-drvs.cc @@ -85,8 +85,8 @@ StringSet DrvInfo::queryMetaNames() { StringSet res; if (!getMeta()) return res; - foreach (Bindings::iterator, i, *meta) - res.insert(i->name); + for (auto & i : *meta) + res.insert(i.name); return res; } @@ -102,8 +102,8 @@ bool DrvInfo::checkMeta(Value & v) else if (v.type == tAttrs) { Bindings::iterator i = v.attrs->find(state->sOutPath); if (i != v.attrs->end()) return false; - foreach (Bindings::iterator, i, *v.attrs) - if (!checkMeta(*i->value)) return false; + for (auto & i : *v.attrs) + if (!checkMeta(*i.value)) return false; return true; } else return v.type == tInt || v.type == tBool || v.type == tString; @@ -255,13 +255,13 @@ static void getDerivations(EvalState & state, Value & vIn, precedence). */ typedef std::map SortedSymbols; SortedSymbols attrs; - foreach (Bindings::iterator, i, *v.attrs) - attrs.insert(std::pair(i->name, i->name)); + for (auto & i : *v.attrs) + attrs.insert(std::pair(i.name, i.name)); - foreach (SortedSymbols::iterator, i, attrs) { - startNest(nest, lvlDebug, format("evaluating attribute ‘%1%’") % i->first); - string pathPrefix2 = addToPath(pathPrefix, i->first); - Value & v2(*v.attrs->find(i->second)->value); + for (auto & i : attrs) { + startNest(nest, lvlDebug, format("evaluating attribute ‘%1%’") % i.first); + string pathPrefix2 = addToPath(pathPrefix, i.first); + Value & v2(*v.attrs->find(i.second)->value); if (combineChannels) getDerivations(state, v2, pathPrefix2, autoArgs, drvs, done, ignoreAssertionFailures); else if (getDerivation(state, v2, pathPrefix2, drvs, done, ignoreAssertionFailures)) { diff --git a/src/libexpr/names.cc b/src/libexpr/names.cc index cda5aa195..7bca9b655 100644 --- a/src/libexpr/names.cc +++ b/src/libexpr/names.cc @@ -98,8 +98,8 @@ int compareVersions(const string & v1, const string & v2) DrvNames drvNamesFromArgs(const Strings & opArgs) { DrvNames result; - foreach (Strings::const_iterator, i, opArgs) - result.push_back(DrvName(*i)); + for (auto & i : opArgs) + result.push_back(DrvName(i)); return result; } diff --git a/src/libexpr/nixexpr.cc b/src/libexpr/nixexpr.cc index 43f3161f8..35db52a13 100644 --- a/src/libexpr/nixexpr.cc +++ b/src/libexpr/nixexpr.cc @@ -97,21 +97,21 @@ void ExprAttrs::show(std::ostream & str) { if (recursive) str << "rec "; str << "{ "; - foreach (AttrDefs::iterator, i, attrs) - if (i->second.inherited) - str << "inherit " << i->first << " " << "; "; + for (auto & i : attrs) + if (i.second.inherited) + str << "inherit " << i.first << " " << "; "; else - str << i->first << " = " << *i->second.e << "; "; - foreach (DynamicAttrDefs::iterator, i, dynamicAttrs) - str << "\"${" << *i->nameExpr << "}\" = " << *i->valueExpr << "; "; + str << i.first << " = " << *i.second.e << "; "; + for (auto & i : dynamicAttrs) + str << "\"${" << *i.nameExpr << "}\" = " << *i.valueExpr << "; "; str << "}"; } void ExprList::show(std::ostream & str) { str << "[ "; - foreach (vector::iterator, i, elems) - str << "(" << **i << ") "; + for (auto & i : elems) + str << "(" << *i << ") "; str << "]"; } @@ -121,10 +121,10 @@ void ExprLambda::show(std::ostream & str) if (matchAttrs) { str << "{ "; bool first = true; - foreach (Formals::Formals_::iterator, i, formals->formals) { + for (auto & i : formals->formals) { if (first) first = false; else str << ", "; - str << i->name; - if (i->def) str << " ? " << *i->def; + str << i.name; + if (i.def) str << " ? " << *i.def; } if (formals->ellipsis) { if (!first) str << ", "; @@ -140,12 +140,12 @@ void ExprLambda::show(std::ostream & str) void ExprLet::show(std::ostream & str) { str << "(let "; - foreach (ExprAttrs::AttrDefs::iterator, i, attrs->attrs) - if (i->second.inherited) { - str << "inherit " << i->first << "; "; + for (auto & i : attrs->attrs) + if (i.second.inherited) { + str << "inherit " << i.first << "; "; } else - str << i->first << " = " << *i->second.e << "; "; + str << i.first << " = " << *i.second.e << "; "; str << "in " << *body << ")"; } @@ -173,9 +173,9 @@ void ExprConcatStrings::show(std::ostream & str) { bool first = true; str << "("; - foreach (vector::iterator, i, *es) { + for (auto & i : *es) { if (first) first = false; else str << " + "; - str << **i; + str << *i; } str << ")"; } @@ -267,17 +267,17 @@ void ExprSelect::bindVars(const StaticEnv & env) { e->bindVars(env); if (def) def->bindVars(env); - foreach (AttrPath::iterator, i, attrPath) - if (!i->symbol.set()) - i->expr->bindVars(env); + for (auto & i : attrPath) + if (!i.symbol.set()) + i.expr->bindVars(env); } void ExprOpHasAttr::bindVars(const StaticEnv & env) { e->bindVars(env); - foreach (AttrPath::iterator, i, attrPath) - if (!i->symbol.set()) - i->expr->bindVars(env); + for (auto & i : attrPath) + if (!i.symbol.set()) + i.expr->bindVars(env); } void ExprAttrs::bindVars(const StaticEnv & env) @@ -289,27 +289,27 @@ void ExprAttrs::bindVars(const StaticEnv & env) dynamicEnv = &newEnv; unsigned int displ = 0; - foreach (AttrDefs::iterator, i, attrs) - newEnv.vars[i->first] = i->second.displ = displ++; + for (auto & i : attrs) + newEnv.vars[i.first] = i.second.displ = displ++; - foreach (AttrDefs::iterator, i, attrs) - i->second.e->bindVars(i->second.inherited ? env : newEnv); + for (auto & i : attrs) + i.second.e->bindVars(i.second.inherited ? env : newEnv); } else - foreach (AttrDefs::iterator, i, attrs) - i->second.e->bindVars(env); + for (auto & i : attrs) + i.second.e->bindVars(env); - foreach (DynamicAttrDefs::iterator, i, dynamicAttrs) { - i->nameExpr->bindVars(*dynamicEnv); - i->valueExpr->bindVars(*dynamicEnv); + for (auto & i : dynamicAttrs) { + i.nameExpr->bindVars(*dynamicEnv); + i.valueExpr->bindVars(*dynamicEnv); } } void ExprList::bindVars(const StaticEnv & env) { - foreach (vector::iterator, i, elems) - (*i)->bindVars(env); + for (auto & i : elems) + i->bindVars(env); } void ExprLambda::bindVars(const StaticEnv & env) @@ -321,11 +321,11 @@ void ExprLambda::bindVars(const StaticEnv & env) if (!arg.empty()) newEnv.vars[arg] = displ++; if (matchAttrs) { - foreach (Formals::Formals_::iterator, i, formals->formals) - newEnv.vars[i->name] = displ++; + for (auto & i : formals->formals) + newEnv.vars[i.name] = displ++; - foreach (Formals::Formals_::iterator, i, formals->formals) - if (i->def) i->def->bindVars(newEnv); + for (auto & i : formals->formals) + if (i.def) i.def->bindVars(newEnv); } body->bindVars(newEnv); @@ -336,11 +336,11 @@ void ExprLet::bindVars(const StaticEnv & env) StaticEnv newEnv(false, &env); unsigned int displ = 0; - foreach (ExprAttrs::AttrDefs::iterator, i, attrs->attrs) - newEnv.vars[i->first] = i->second.displ = displ++; + for (auto & i : attrs->attrs) + newEnv.vars[i.first] = i.second.displ = displ++; - foreach (ExprAttrs::AttrDefs::iterator, i, attrs->attrs) - i->second.e->bindVars(i->second.inherited ? env : newEnv); + for (auto & i : attrs->attrs) + i.second.e->bindVars(i.second.inherited ? env : newEnv); body->bindVars(newEnv); } @@ -384,8 +384,8 @@ void ExprOpNot::bindVars(const StaticEnv & env) void ExprConcatStrings::bindVars(const StaticEnv & env) { - foreach (vector::iterator, i, *es) - (*i)->bindVars(env); + for (auto & i : *es) + i->bindVars(env); } void ExprPos::bindVars(const StaticEnv & env) @@ -419,8 +419,8 @@ string ExprLambda::showNamePos() const size_t SymbolTable::totalSize() const { size_t n = 0; - foreach (Symbols::const_iterator, i, symbols) - n += i->size(); + for (auto & i : symbols) + n += i.size(); return n; } diff --git a/src/libexpr/parser.y b/src/libexpr/parser.y index 1f830b7e3..d34882f36 100644 --- a/src/libexpr/parser.y +++ b/src/libexpr/parser.y @@ -136,8 +136,8 @@ static Expr * stripIndentation(const Pos & pos, SymbolTable & symbols, vector::iterator, i, es) { - ExprIndStr * e = dynamic_cast(*i); + for (auto & i : es) { + ExprIndStr * e = dynamic_cast(i); if (!e) { /* Anti-quotations end the current start-of-line whitespace. */ if (atStartOfLine) { @@ -419,20 +419,20 @@ binds : binds attrpath '=' expr ';' { $$ = $1; addAttr($$, *$2, $4, makeCurPos(@2, data)); } | binds INHERIT attrs ';' { $$ = $1; - foreach (AttrPath::iterator, i, *$3) { - if ($$->attrs.find(i->symbol) != $$->attrs.end()) - dupAttr(i->symbol, makeCurPos(@3, data), $$->attrs[i->symbol].pos); + for (auto & i : *$3) { + if ($$->attrs.find(i.symbol) != $$->attrs.end()) + dupAttr(i.symbol, makeCurPos(@3, data), $$->attrs[i.symbol].pos); Pos pos = makeCurPos(@3, data); - $$->attrs[i->symbol] = ExprAttrs::AttrDef(new ExprVar(CUR_POS, i->symbol), pos, true); + $$->attrs[i.symbol] = ExprAttrs::AttrDef(new ExprVar(CUR_POS, i.symbol), pos, true); } } | binds INHERIT '(' expr ')' attrs ';' { $$ = $1; /* !!! Should ensure sharing of the expression in $4. */ - foreach (AttrPath::iterator, i, *$6) { - if ($$->attrs.find(i->symbol) != $$->attrs.end()) - dupAttr(i->symbol, makeCurPos(@6, data), $$->attrs[i->symbol].pos); - $$->attrs[i->symbol] = ExprAttrs::AttrDef(new ExprSelect(CUR_POS, $4, i->symbol), makeCurPos(@6, data)); + for (auto & i : *$6) { + if ($$->attrs.find(i.symbol) != $$->attrs.end()) + dupAttr(i.symbol, makeCurPos(@6, data), $$->attrs[i.symbol].pos); + $$->attrs[i.symbol] = ExprAttrs::AttrDef(new ExprSelect(CUR_POS, $4, i.symbol), makeCurPos(@6, data)); } } | { $$ = new ExprAttrs; } diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc index 355b81adf..c36a68ce0 100644 --- a/src/libexpr/primops.cc +++ b/src/libexpr/primops.cc @@ -330,8 +330,8 @@ static void prim_genericClosure(EvalState & state, const Pos & pos, Value * * ar /* Create the result list. */ state.mkList(v, res.size()); unsigned int n = 0; - foreach (ValueList::iterator, i, res) - v.list.elems[n++] = *i; + for (auto & i : res) + v.list.elems[n++] = i; } @@ -477,24 +477,24 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * * StringSet outputs; outputs.insert("out"); - foreach (Bindings::iterator, i, *args[0]->attrs) { - if (i->name == state.sIgnoreNulls) continue; - string key = i->name; + for (auto & i : *args[0]->attrs) { + if (i.name == state.sIgnoreNulls) continue; + string key = i.name; startNest(nest, lvlVomit, format("processing attribute ‘%1%’") % key); try { if (ignoreNulls) { - state.forceValue(*i->value); - if (i->value->type == tNull) continue; + state.forceValue(*i.value); + if (i.value->type == tNull) continue; } /* The `args' attribute is special: it supplies the command-line arguments to the builder. */ if (key == "args") { - state.forceList(*i->value, pos); - for (unsigned int n = 0; n < i->value->list.length; ++n) { - string s = state.coerceToString(posDrvName, *i->value->list.elems[n], context, true); + state.forceList(*i.value, pos); + for (unsigned int n = 0; n < i.value->list.length; ++n) { + string s = state.coerceToString(posDrvName, *i.value->list.elems[n], context, true); drv.args.push_back(s); } } @@ -502,11 +502,11 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * * /* All other attributes are passed to the builder through the environment. */ else { - string s = state.coerceToString(posDrvName, *i->value, context, true); + string s = state.coerceToString(posDrvName, *i.value, context, true); drv.env[key] = s; if (key == "builder") drv.builder = s; - else if (i->name == state.sSystem) drv.platform = s; - else if (i->name == state.sName) { + else if (i.name == state.sSystem) drv.platform = s; + else if (i.name == state.sName) { drvName = s; printMsg(lvlVomit, format("derivation name is ‘%1%’") % drvName); } @@ -520,17 +520,17 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * * else if (key == "outputs") { Strings tmp = tokenizeString(s); outputs.clear(); - foreach (Strings::iterator, j, tmp) { - if (outputs.find(*j) != outputs.end()) - throw EvalError(format("duplicate derivation output ‘%1%’, at %2%") % *j % posDrvName); - /* !!! Check whether *j is a valid attribute + for (auto & j : tmp) { + if (outputs.find(j) != outputs.end()) + throw EvalError(format("duplicate derivation output ‘%1%’, at %2%") % j % posDrvName); + /* !!! Check whether j is a valid attribute name. */ /* Derivations cannot be named ‘drv’, because then we'd have an attribute ‘drvPath’ in the resulting set. */ - if (*j == "drv") + if (j == "drv") throw EvalError(format("invalid derivation output name ‘drv’, at %1%") % posDrvName); - outputs.insert(*j); + outputs.insert(j); } if (outputs.empty()) throw EvalError(format("derivation cannot have an empty set of outputs, at %1%") % posDrvName); @@ -547,8 +547,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * * /* Everything in the context of the strings in the derivation attributes should be added as dependencies of the resulting derivation. */ - foreach (PathSet::iterator, i, context) { - Path path = *i; + for (auto & path : context) { /* Paths marked with `=' denote that the path of a derivation is explicitly passed to the builder. Since that allows the @@ -560,10 +559,10 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * * if (path.at(0) == '=') { /* !!! This doesn't work if readOnlyMode is set. */ PathSet refs; computeFSClosure(*store, string(path, 1), refs); - foreach (PathSet::iterator, j, refs) { - drv.inputSrcs.insert(*j); - if (isDerivation(*j)) - drv.inputDrvs[*j] = store->queryDerivationOutputNames(*j); + for (auto & j : refs) { + drv.inputSrcs.insert(j); + if (isDerivation(j)) + drv.inputDrvs[j] = store->queryDerivationOutputNames(j); } } @@ -622,20 +621,20 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * * are empty, and the corresponding environment variables have an empty value. This ensures that changes in the set of output names do get reflected in the hash. */ - foreach (StringSet::iterator, i, outputs) { - drv.env[*i] = ""; - drv.outputs[*i] = DerivationOutput("", "", ""); + for (auto & i : outputs) { + drv.env[i] = ""; + drv.outputs[i] = DerivationOutput("", "", ""); } /* Use the masked derivation expression to compute the output path. */ Hash h = hashDerivationModulo(*store, drv); - foreach (DerivationOutputs::iterator, i, drv.outputs) - if (i->second.path == "") { - Path outPath = makeOutputPath(i->first, h, drvName); - drv.env[i->first] = outPath; - i->second.path = outPath; + for (auto & i : drv.outputs) + if (i.second.path == "") { + Path outPath = makeOutputPath(i.first, h, drvName); + drv.env[i.first] = outPath; + i.second.path = outPath; } } @@ -652,9 +651,9 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * * state.mkAttrs(v, 1 + drv.outputs.size()); mkString(*state.allocAttr(v, state.sDrvPath), drvPath, singleton("=" + drvPath)); - foreach (DerivationOutputs::iterator, i, drv.outputs) { - mkString(*state.allocAttr(v, state.symbols.create(i->first)), - i->second.path, singleton("!" + i->first + "!" + drvPath)); + for (auto & i : drv.outputs) { + mkString(*state.allocAttr(v, state.symbols.create(i.first)), + i.second.path, singleton("!" + i.first + "!" + drvPath)); } v.attrs->sort(); } @@ -871,8 +870,7 @@ static void prim_toFile(EvalState & state, const Pos & pos, Value * * args, Valu PathSet refs; - foreach (PathSet::iterator, i, context) { - Path path = *i; + for (auto path : context) { if (path.at(0) == '=') path = string(path, 1); if (isDerivation(path)) throw EvalError(format("in ‘toFile’: the file ‘%1%’ cannot refer to derivation outputs, at %2%") % name % pos); @@ -1057,9 +1055,9 @@ static void prim_removeAttrs(EvalState & state, const Pos & pos, Value * * args, to sort v.attrs because it's a subset of an already sorted vector. */ state.mkAttrs(v, args[0]->attrs->size()); - foreach (Bindings::iterator, i, *args[0]->attrs) { - if (names.find(i->name) == names.end()) - v.attrs->push_back(*i); + for (auto & i : *args[0]->attrs) { + if (names.find(i.name) == names.end()) + v.attrs->push_back(i); } } @@ -1111,8 +1109,8 @@ static void prim_intersectAttrs(EvalState & state, const Pos & pos, Value * * ar state.mkAttrs(v, std::min(args[0]->attrs->size(), args[1]->attrs->size())); - foreach (Bindings::iterator, i, *args[0]->attrs) { - Bindings::iterator j = args[1]->attrs->find(i->name); + for (auto & i : *args[0]->attrs) { + Bindings::iterator j = args[1]->attrs->find(i.name); if (j != args[1]->attrs->end()) v.attrs->push_back(*j); } @@ -1173,9 +1171,9 @@ static void prim_functionArgs(EvalState & state, const Pos & pos, Value * * args } state.mkAttrs(v, args[0]->lambda.fun->formals->formals.size()); - foreach (Formals::Formals_::iterator, i, args[0]->lambda.fun->formals->formals) + for (auto & i : args[0]->lambda.fun->formals->formals) // !!! should optimise booleans (allocate only once) - mkBool(*state.allocAttr(v, i->name), i->def); + mkBool(*state.allocAttr(v, i.name), i.def); v.attrs->sort(); } @@ -1407,11 +1405,8 @@ static void prim_unsafeDiscardOutputDependency(EvalState & state, const Pos & po string s = state.coerceToString(pos, *args[0], context); PathSet context2; - foreach (PathSet::iterator, i, context) { - Path p = *i; - if (p.at(0) == '=') p = "~" + string(p, 1); - context2.insert(p); - } + for (auto & p : context) + context2.insert(p.at(0) == '=' ? "~" + string(p, 1) : p); mkString(v, s, context2); } diff --git a/src/libexpr/value-to-json.cc b/src/libexpr/value-to-json.cc index cdb713418..b08d82497 100644 --- a/src/libexpr/value-to-json.cc +++ b/src/libexpr/value-to-json.cc @@ -12,14 +12,14 @@ namespace nix { void escapeJSON(std::ostream & str, const string & s) { str << "\""; - foreach (string::const_iterator, i, s) - if (*i == '\"' || *i == '\\') str << "\\" << *i; - else if (*i == '\n') str << "\\n"; - else if (*i == '\r') str << "\\r"; - else if (*i == '\t') str << "\\t"; - else if (*i >= 0 && *i < 32) - str << "\\u" << std::setfill('0') << std::setw(4) << std::hex << (uint16_t) *i << std::dec; - else str << *i; + for (auto & i : s) + if (i == '\"' || i == '\\') str << "\\" << i; + else if (i == '\n') str << "\\n"; + else if (i == '\r') str << "\\r"; + else if (i == '\t') str << "\\t"; + else if (i >= 0 && i < 32) + str << "\\u" << std::setfill('0') << std::setw(4) << std::hex << (uint16_t) i << std::dec; + else str << i; str << "\""; } @@ -59,11 +59,11 @@ void printValueAsJSON(EvalState & state, bool strict, if (i == v.attrs->end()) { JSONObject json(str); StringSet names; - foreach (Bindings::iterator, i, *v.attrs) - names.insert(i->name); - foreach (StringSet::iterator, i, names) { - Attr & a(*v.attrs->find(state.symbols.create(*i))); - json.attr(*i); + for (auto & j : *v.attrs) + names.insert(j.name); + for (auto & j : names) { + Attr & a(*v.attrs->find(state.symbols.create(j))); + json.attr(j); printValueAsJSON(state, strict, *a.value, str, context); } } else @@ -80,7 +80,7 @@ void printValueAsJSON(EvalState & state, bool strict, break; } - case tExternal: + case tExternal: v.external->printValueAsJSON(state, strict, str, context); break; diff --git a/src/libexpr/value-to-xml.cc b/src/libexpr/value-to-xml.cc index bbbb7039b..9cb04bad3 100644 --- a/src/libexpr/value-to-xml.cc +++ b/src/libexpr/value-to-xml.cc @@ -8,7 +8,7 @@ namespace nix { - + static XMLAttrs singletonAttrs(const string & name, const string & value) { XMLAttrs attrs; @@ -33,17 +33,17 @@ static void showAttrs(EvalState & state, bool strict, bool location, Bindings & attrs, XMLWriter & doc, PathSet & context, PathSet & drvsSeen) { StringSet names; - - foreach (Bindings::iterator, i, attrs) - names.insert(i->name); - - foreach (StringSet::iterator, i, names) { - Attr & a(*attrs.find(state.symbols.create(*i))); - + + for (auto & i : attrs) + names.insert(i.name); + + for (auto & i : names) { + Attr & a(*attrs.find(state.symbols.create(i))); + XMLAttrs xmlAttrs; - xmlAttrs["name"] = *i; + xmlAttrs["name"] = i; if (location && a.pos != &noPos) posToXML(xmlAttrs, *a.pos); - + XMLOpenElement _(doc, "attr", xmlAttrs); printValueAsXML(state, strict, location, *a.value, doc, context, drvsSeen); @@ -57,7 +57,7 @@ static void printValueAsXML(EvalState & state, bool strict, bool location, checkInterrupt(); if (strict) state.forceValue(v); - + switch (v.type) { case tInt: @@ -85,7 +85,7 @@ static void printValueAsXML(EvalState & state, bool strict, bool location, case tAttrs: if (state.isDerivation(v)) { XMLAttrs xmlAttrs; - + Bindings::iterator a = v.attrs->find(state.symbols.create("derivation")); Path drvPath; @@ -95,7 +95,7 @@ static void printValueAsXML(EvalState & state, bool strict, bool location, if (a->value->type == tString) xmlAttrs["drvPath"] = drvPath = a->value->string.s; } - + a = v.attrs->find(state.sOutPath); if (a != v.attrs->end()) { if (strict) state.forceValue(*a->value); @@ -116,7 +116,7 @@ static void printValueAsXML(EvalState & state, bool strict, bool location, XMLOpenElement _(doc, "attrs"); showAttrs(state, strict, location, *v.attrs, doc, context, drvsSeen); } - + break; case tList: { @@ -130,17 +130,17 @@ static void printValueAsXML(EvalState & state, bool strict, bool location, XMLAttrs xmlAttrs; if (location) posToXML(xmlAttrs, v.lambda.fun->pos); XMLOpenElement _(doc, "function", xmlAttrs); - + if (v.lambda.fun->matchAttrs) { XMLAttrs attrs; if (!v.lambda.fun->arg.empty()) attrs["name"] = v.lambda.fun->arg; if (v.lambda.fun->formals->ellipsis) attrs["ellipsis"] = "1"; XMLOpenElement _(doc, "attrspat", attrs); - foreach (Formals::Formals_::iterator, i, v.lambda.fun->formals->formals) - doc.writeEmptyElement("attr", singletonAttrs("name", i->name)); + for (auto & i : v.lambda.fun->formals->formals) + doc.writeEmptyElement("attr", singletonAttrs("name", i.name)); } else doc.writeEmptyElement("varpat", singletonAttrs("name", v.lambda.fun->arg)); - + break; } @@ -166,9 +166,9 @@ void printValueAsXML(EvalState & state, bool strict, bool location, { XMLWriter doc(true, out); XMLOpenElement root(doc, "expr"); - PathSet drvsSeen; + PathSet drvsSeen; printValueAsXML(state, strict, location, v, doc, context, drvsSeen); } - + } diff --git a/src/libstore/build.cc b/src/libstore/build.cc index 5e2e7d89a..8f1d5b2c8 100644 --- a/src/libstore/build.cc +++ b/src/libstore/build.cc @@ -331,8 +331,8 @@ void addToWeakGoals(WeakGoals & goals, GoalPtr p) { // FIXME: necessary? // FIXME: O(n) - foreach (WeakGoals::iterator, i, goals) - if (i->lock() == p) return; + for (auto & i : goals) + if (i.lock() == p) return; goals.push_back(p); } @@ -362,11 +362,10 @@ void Goal::waiteeDone(GoalPtr waitee, ExitCode result) /* If we failed and keepGoing is not set, we remove all remaining waitees. */ - foreach (Goals::iterator, i, waitees) { - GoalPtr goal = *i; + for (auto & goal : waitees) { WeakGoals waiters2; - foreach (WeakGoals::iterator, j, goal->waiters) - if (j->lock() != shared_from_this()) waiters2.push_back(*j); + for (auto & j : goal->waiters) + if (j.lock() != shared_from_this()) waiters2.push_back(j); goal->waiters = waiters2; } waitees.clear(); @@ -382,8 +381,8 @@ void Goal::amDone(ExitCode result) assert(exitCode == ecBusy); assert(result == ecSuccess || result == ecFailed || result == ecNoSubstituters || result == ecIncompleteClosure); exitCode = result; - foreach (WeakGoals::iterator, i, waiters) { - GoalPtr goal = i->lock(); + for (auto & i : waiters) { + GoalPtr goal = i.lock(); if (goal) goal->waiteeDone(shared_from_this(), result); } waiters.clear(); @@ -509,13 +508,13 @@ void UserLock::acquire() /* Find a user account that isn't currently in use for another build. */ - foreach (Strings::iterator, i, users) { - debug(format("trying user ‘%1%’") % *i); + for (auto & i : users) { + debug(format("trying user ‘%1%’") % i); - struct passwd * pw = getpwnam(i->c_str()); + struct passwd * pw = getpwnam(i.c_str()); if (!pw) throw Error(format("the user ‘%1%’ in the group ‘%2%’ does not exist") - % *i % settings.buildUsersGroup); + % i % settings.buildUsersGroup); createDirs(settings.nixStateDir + "/userpool"); @@ -533,7 +532,7 @@ void UserLock::acquire() if (lockFile(fd, ltWrite, false)) { fdUserLock = fd.borrow(); lockedPaths.insert(fnUserLock); - user = *i; + user = i; uid = pw->pw_uid; /* Sanity check... */ @@ -669,12 +668,12 @@ typedef map HashRewrites; string rewriteHashes(string s, const HashRewrites & rewrites) { - foreach (HashRewrites::const_iterator, i, rewrites) { - assert(i->first.size() == i->second.size()); + for (auto & i : rewrites) { + assert(i.first.size() == i.second.size()); size_t j = 0; - while ((j = s.find(i->first, j)) != string::npos) { + while ((j = s.find(i.first, j)) != string::npos) { debug(format("rewriting @ %1%") % j); - s.replace(j, i->second.size(), i->second); + s.replace(j, i.second.size(), i.second); } } return s; @@ -962,9 +961,9 @@ void DerivationGoal::addWantedOutputs(const StringSet & outputs) wantedOutputs.clear(); needRestart = true; } else - foreach (StringSet::const_iterator, i, outputs) - if (wantedOutputs.find(*i) == wantedOutputs.end()) { - wantedOutputs.insert(*i); + for (auto & i : outputs) + if (wantedOutputs.find(i) == wantedOutputs.end()) { + wantedOutputs.insert(i); needRestart = true; } } @@ -1307,7 +1306,7 @@ void DerivationGoal::tryToBuild() missingPaths = outputPaths(*drv); if (buildMode != bmCheck) - foreach (PathSet::iterator, i, validPaths) missingPaths.erase(*i); + for (auto & i : validPaths) missingPaths.erase(i); /* If any of the outputs already exist but are not valid, delete them. */ @@ -1469,9 +1468,9 @@ void DerivationGoal::buildDone() /* Move paths out of the chroot for easier debugging of build failures. */ if (useChroot && buildMode == bmNormal) - foreach (PathSet::iterator, i, missingPaths) - if (pathExists(chrootRootDir + *i)) - rename((chrootRootDir + *i).c_str(), i->c_str()); + for (auto & i : missingPaths) + if (pathExists(chrootRootDir + i)) + rename((chrootRootDir + i).c_str(), i.c_str()); if (diskFull) printMsg(lvlError, "note: build failure may have been caused by lack of free disk space"); @@ -1490,8 +1489,8 @@ void DerivationGoal::buildDone() } /* Delete unused redirected outputs (when doing hash rewriting). */ - foreach (RedirectedOutputs::iterator, i, redirectedOutputs) - if (pathExists(i->second)) deletePath(i->second); + for (auto & i : redirectedOutputs) + if (pathExists(i.second)) deletePath(i.second); /* Delete the chroot (if we were using one). */ autoDelChroot.reset(); /* this runs the destructor */ @@ -1566,7 +1565,7 @@ HookReply DerivationGoal::tryBuildHook() required from the build machine. (The hook could parse the drv file itself, but this is easier.) */ Strings features = tokenizeString(get(drv->env, "requiredSystemFeatures")); - foreach (Strings::iterator, i, features) checkStoreName(*i); /* !!! abuse */ + for (auto & i : features) checkStoreName(i); /* !!! abuse */ /* Send the request to the hook. */ writeLine(worker.hook->toHook.writeSide, (format("%1% %2% %3% %4%") @@ -1608,13 +1607,13 @@ HookReply DerivationGoal::tryBuildHook() computeFSClosure(worker.store, drvPath, allInputs); string s; - foreach (PathSet::iterator, i, allInputs) { s += *i; s += ' '; } + for (auto & i : allInputs) { s += i; s += ' '; } writeLine(hook->toHook.writeSide, s); /* Tell the hooks the missing outputs that have to be copied back from the remote system. */ s = ""; - foreach (PathSet::iterator, i, missingPaths) { s += *i; s += ' '; } + for (auto & i : missingPaths) { s += i; s += ' '; } writeLine(hook->toHook.writeSide, s); hook->toHook.writeSide.close(); @@ -1742,7 +1741,7 @@ void DerivationGoal::startBuilder() already know the cryptographic hash of the output). */ if (fixedOutput) { Strings varNames = tokenizeString(get(drv->env, "impureEnvVars")); - foreach (Strings::iterator, i, varNames) env[*i] = getEnv(*i); + for (auto & i : varNames) env[i] = getEnv(i); } /* The `exportReferencesGraph' feature allows the references graph @@ -1778,9 +1777,9 @@ void DerivationGoal::startBuilder() computeFSClosure(worker.store, storePath, paths); paths2 = paths; - foreach (PathSet::iterator, j, paths2) { - if (isDerivation(*j)) { - Derivation drv = derivationFromPath(worker.store, *j); + for (auto & j : paths2) { + if (isDerivation(j)) { + Derivation drv = derivationFromPath(worker.store, j); for (auto & k : drv.outputs) computeFSClosure(worker.store, k.second.path, paths); } @@ -1951,28 +1950,28 @@ void DerivationGoal::startBuilder() if (chown(chrootStoreDir.c_str(), 0, buildUser.getGID()) == -1) throw SysError(format("cannot change ownership of ‘%1%’") % chrootStoreDir); - foreach (PathSet::iterator, i, inputPaths) { + for (auto & i : inputPaths) { struct stat st; - if (lstat(i->c_str(), &st)) - throw SysError(format("getting attributes of path ‘%1%’") % *i); + if (lstat(i.c_str(), &st)) + throw SysError(format("getting attributes of path ‘%1%’") % i); if (S_ISDIR(st.st_mode)) - dirsInChroot[*i] = *i; + dirsInChroot[i] = i; else { - Path p = chrootRootDir + *i; - if (link(i->c_str(), p.c_str()) == -1) { + Path p = chrootRootDir + i; + if (link(i.c_str(), p.c_str()) == -1) { /* Hard-linking fails if we exceed the maximum link count on a file (e.g. 32000 of ext3), which is quite possible after a `nix-store --optimise'. */ if (errno != EMLINK) - throw SysError(format("linking ‘%1%’ to ‘%2%’") % p % *i); + throw SysError(format("linking ‘%1%’ to ‘%2%’") % p % i); StringSink sink; - dumpPath(*i, sink); + dumpPath(i, sink); StringSource source(sink.s); restorePath(p, source); } - regularInputPaths.insert(*i); + regularInputPaths.insert(i); } } @@ -2007,16 +2006,16 @@ void DerivationGoal::startBuilder() contents of the new outputs to replace the dummy strings with the actual hashes. */ if (validPaths.size() > 0) - foreach (PathSet::iterator, i, validPaths) - addHashRewrite(*i); + for (auto & i : validPaths) + addHashRewrite(i); /* If we're repairing, then we don't want to delete the corrupt outputs in advance. So rewrite them as well. */ if (buildMode == bmRepair) - foreach (PathSet::iterator, i, missingPaths) - if (worker.store.isValidPath(*i) && pathExists(*i)) { - addHashRewrite(*i); - redirectedBadOutputs.insert(*i); + for (auto & i : missingPaths) + if (worker.store.isValidPath(i) && pathExists(i)) { + addHashRewrite(i); + redirectedBadOutputs.insert(i); } } @@ -2190,8 +2189,8 @@ void DerivationGoal::runChild() local to the namespace, though, so setting MS_PRIVATE does not affect the outside world. */ Strings mounts = tokenizeString(readFile("/proc/self/mountinfo", true), "\n"); - foreach (Strings::iterator, i, mounts) { - vector fields = tokenizeString >(*i, " "); + for (auto & i : mounts) { + vector fields = tokenizeString >(i, " "); string fs = decodeOctalEscaped(fields.at(4)); if (mount(0, fs.c_str(), 0, MS_PRIVATE, 0) == -1) throw SysError(format("unable to make filesystem ‘%1%’ private") % fs); @@ -2239,10 +2238,10 @@ void DerivationGoal::runChild() /* Bind-mount all the directories from the "host" filesystem that we want in the chroot environment. */ - foreach (DirsInChroot::iterator, i, dirsInChroot) { + for (auto & i : dirsInChroot) { struct stat st; - Path source = i->second; - Path target = chrootRootDir + i->first; + Path source = i.second; + Path target = chrootRootDir + i.first; if (source == "/proc") continue; // backwards compatibility debug(format("bind mounting ‘%1%’ to ‘%2%’") % source % target); if (stat(source.c_str(), &st) == -1) @@ -2340,8 +2339,8 @@ void DerivationGoal::runChild() /* Fill in the environment. */ Strings envStrs; - foreach (Environment::const_iterator, i, env) - envStrs.push_back(rewriteHashes(i->first + "=" + i->second, rewritesToTmp)); + for (auto & i : env) + envStrs.push_back(rewriteHashes(i.first + "=" + i.second, rewritesToTmp)); /* If we are running in `build-users' mode, then switch to the user we allocated above. Make sure that we drop all root @@ -2522,14 +2521,13 @@ PathSet parseReferenceSpecifiers(const BasicDerivation & drv, string attr) { PathSet result; Paths paths = tokenizeString(attr); - foreach (Strings::iterator, i, paths) { - if (isStorePath(*i)) - result.insert(*i); - else if (drv.outputs.find(*i) != drv.outputs.end()) - result.insert(drv.outputs.find(*i)->second.path); + for (auto & i : paths) { + if (isStorePath(i)) + result.insert(i); + else if (drv.outputs.find(i) != drv.outputs.end()) + result.insert(drv.outputs.find(i)->second.path); else throw BuildError( - format("derivation contains an illegal reference specifier ‘%1%’") - % *i); + format("derivation contains an illegal reference specifier ‘%1%’") % i); } return result; } @@ -2666,12 +2664,12 @@ void DerivationGoal::registerOutputs() /* For debugging, print out the referenced and unreferenced paths. */ - foreach (PathSet::iterator, i, inputPaths) { - PathSet::iterator j = references.find(*i); + for (auto & i : inputPaths) { + PathSet::iterator j = references.find(i); if (j == references.end()) - debug(format("unreferenced input: ‘%1%’") % *i); + debug(format("unreferenced input: ‘%1%’") % i); else - debug(format("referenced input: ‘%1%’") % *i); + debug(format("referenced input: ‘%1%’") % i); } /* Enforce `allowedReferences' and friends. */ @@ -3044,9 +3042,9 @@ void SubstitutionGoal::tryNext() /* To maintain the closure invariant, we first have to realise the paths referenced by this one. */ - foreach (PathSet::iterator, i, info.references) - if (*i != storePath) /* ignore self-references */ - addWaitee(worker.makeSubstitutionGoal(*i)); + for (auto & i : info.references) + if (i != storePath) /* ignore self-references */ + addWaitee(worker.makeSubstitutionGoal(i)); if (waitees.empty()) /* to prevent hang (no wake-up event) */ referencesValid(); @@ -3065,9 +3063,9 @@ void SubstitutionGoal::referencesValid() return; } - foreach (PathSet::iterator, i, info.references) - if (*i != storePath) /* ignore self-references */ - assert(worker.store.isValidPath(*i)); + for (auto & i : info.references) + if (i != storePath) /* ignore self-references */ + assert(worker.store.isValidPath(i)); state = &SubstitutionGoal::tryToRun; worker.wakeUp(shared_from_this()); @@ -3359,8 +3357,8 @@ void Worker::removeGoal(GoalPtr goal) } /* Wake up goals waiting for any goal to finish. */ - foreach (WeakGoals::iterator, i, waitingForAnyGoal) { - GoalPtr goal = i->lock(); + for (auto & i : waitingForAnyGoal) { + GoalPtr goal = i.lock(); if (goal) wakeUp(goal); } @@ -3413,8 +3411,8 @@ void Worker::childTerminated(pid_t pid, bool wakeSleepers) if (wakeSleepers) { /* Wake up goals waiting for a build slot. */ - foreach (WeakGoals::iterator, i, wantingToBuild) { - GoalPtr goal = i->lock(); + for (auto & i : wantingToBuild) { + GoalPtr goal = i.lock(); if (goal) wakeUp(goal); } @@ -3449,7 +3447,7 @@ void Worker::waitForAWhile(GoalPtr goal) void Worker::run(const Goals & _topGoals) { - foreach (Goals::iterator, i, _topGoals) topGoals.insert(*i); + for (auto & i : _topGoals) topGoals.insert(i); startNest(nest, lvlDebug, format("entered goal loop")); @@ -3515,12 +3513,12 @@ void Worker::waitForInput() deadline for any child. */ assert(sizeof(time_t) >= sizeof(long)); time_t nearest = LONG_MAX; // nearest deadline - foreach (Children::iterator, i, children) { - if (!i->second.respectTimeouts) continue; + for (auto & i : children) { + if (!i.second.respectTimeouts) continue; if (settings.maxSilentTime != 0) - nearest = std::min(nearest, i->second.lastOutput + settings.maxSilentTime); + nearest = std::min(nearest, i.second.lastOutput + settings.maxSilentTime); if (settings.buildTimeout != 0) - nearest = std::min(nearest, i->second.timeStarted + settings.buildTimeout); + nearest = std::min(nearest, i.second.timeStarted + settings.buildTimeout); } if (nearest != LONG_MAX) { timeout.tv_sec = std::max((time_t) 1, nearest - before); @@ -3545,10 +3543,10 @@ void Worker::waitForInput() fd_set fds; FD_ZERO(&fds); int fdMax = 0; - foreach (Children::iterator, i, children) { - foreach (set::iterator, j, i->second.fds) { - FD_SET(*j, &fds); - if (*j >= fdMax) fdMax = *j + 1; + for (auto & i : children) { + for (auto & j : i.second.fds) { + FD_SET(j, &fds); + if (j >= fdMax) fdMax = j + 1; } } @@ -3566,34 +3564,34 @@ void Worker::waitForInput() careful that we don't keep iterators alive across calls to cancel(). */ set pids; - foreach (Children::iterator, i, children) pids.insert(i->first); + for (auto & i : children) pids.insert(i.first); - foreach (set::iterator, i, pids) { + for (auto & i : pids) { checkInterrupt(); - Children::iterator j = children.find(*i); + Children::iterator j = children.find(i); if (j == children.end()) continue; // child destroyed GoalPtr goal = j->second.goal.lock(); assert(goal); set fds2(j->second.fds); - foreach (set::iterator, k, fds2) { - if (FD_ISSET(*k, &fds)) { + for (auto & k : fds2) { + if (FD_ISSET(k, &fds)) { unsigned char buffer[4096]; - ssize_t rd = read(*k, buffer, sizeof(buffer)); + ssize_t rd = read(k, buffer, sizeof(buffer)); if (rd == -1) { if (errno != EINTR) throw SysError(format("reading from %1%") % goal->getName()); } else if (rd == 0) { debug(format("%1%: got EOF") % goal->getName()); - goal->handleEOF(*k); - j->second.fds.erase(*k); + goal->handleEOF(k); + j->second.fds.erase(k); } else { printMsg(lvlVomit, format("%1%: read %2% bytes") % goal->getName() % rd); string data((char *) buffer, rd); j->second.lastOutput = after; - goal->handleChildOutput(*k, data); + goal->handleChildOutput(k, data); } } } @@ -3625,8 +3623,8 @@ void Worker::waitForInput() if (!waitingForAWhile.empty() && lastWokenUp + settings.pollInterval <= after) { lastWokenUp = after; - foreach (WeakGoals::iterator, i, waitingForAWhile) { - GoalPtr goal = i->lock(); + for (auto & i : waitingForAWhile) { + GoalPtr goal = i.lock(); if (goal) wakeUp(goal); } waitingForAWhile.clear(); @@ -3650,22 +3648,22 @@ void LocalStore::buildPaths(const PathSet & drvPaths, BuildMode buildMode) Worker worker(*this); Goals goals; - foreach (PathSet::const_iterator, i, drvPaths) { - DrvPathWithOutputs i2 = parseDrvPathWithOutputs(*i); + for (auto & i : drvPaths) { + DrvPathWithOutputs i2 = parseDrvPathWithOutputs(i); if (isDerivation(i2.first)) goals.insert(worker.makeDerivationGoal(i2.first, i2.second, buildMode)); else - goals.insert(worker.makeSubstitutionGoal(*i, buildMode)); + goals.insert(worker.makeSubstitutionGoal(i, buildMode)); } worker.run(goals); PathSet failed; - foreach (Goals::iterator, i, goals) - if ((*i)->getExitCode() == Goal::ecFailed) { - DerivationGoal * i2 = dynamic_cast(i->get()); + for (auto & i : goals) + if (i->getExitCode() == Goal::ecFailed) { + DerivationGoal * i2 = dynamic_cast(i.get()); if (i2) failed.insert(i2->getDrvPath()); - else failed.insert(dynamic_cast(i->get())->getStorePath()); + else failed.insert(dynamic_cast(i.get())->getStorePath()); } if (!failed.empty()) diff --git a/src/libstore/derivations.cc b/src/libstore/derivations.cc index db35af6cb..7959d5bfc 100644 --- a/src/libstore/derivations.cc +++ b/src/libstore/derivations.cc @@ -32,8 +32,8 @@ Path writeDerivation(StoreAPI & store, { PathSet references; references.insert(drv.inputSrcs.begin(), drv.inputSrcs.end()); - foreach (DerivationInputs::const_iterator, i, drv.inputDrvs) - references.insert(i->first); + for (auto & i : drv.inputDrvs) + references.insert(i.first); /* Note that the outputs of a derivation are *not* references (that can be missing (of course) and should not necessarily be held during a garbage collection). */ @@ -156,21 +156,21 @@ string unparseDerivation(const Derivation & drv) s += "Derive(["; bool first = true; - foreach (DerivationOutputs::const_iterator, i, drv.outputs) { + for (auto & i : drv.outputs) { if (first) first = false; else s += ','; - s += '('; printString(s, i->first); - s += ','; printString(s, i->second.path); - s += ','; printString(s, i->second.hashAlgo); - s += ','; printString(s, i->second.hash); + s += '('; printString(s, i.first); + s += ','; printString(s, i.second.path); + s += ','; printString(s, i.second.hashAlgo); + s += ','; printString(s, i.second.hash); s += ')'; } s += "],["; first = true; - foreach (DerivationInputs::const_iterator, i, drv.inputDrvs) { + for (auto & i : drv.inputDrvs) { if (first) first = false; else s += ','; - s += '('; printString(s, i->first); - s += ','; printStrings(s, i->second.begin(), i->second.end()); + s += '('; printString(s, i.first); + s += ','; printStrings(s, i.second.begin(), i.second.end()); s += ')'; } @@ -183,10 +183,10 @@ string unparseDerivation(const Derivation & drv) s += ",["; first = true; - foreach (StringPairs::const_iterator, i, drv.env) { + for (auto & i : drv.env) { if (first) first = false; else s += ','; - s += '('; printString(s, i->first); - s += ','; printString(s, i->second); + s += '('; printString(s, i.first); + s += ','; printString(s, i.second); s += ')'; } @@ -247,15 +247,15 @@ Hash hashDerivationModulo(StoreAPI & store, Derivation drv) /* For other derivations, replace the inputs paths with recursive calls to this function.*/ DerivationInputs inputs2; - foreach (DerivationInputs::const_iterator, i, drv.inputDrvs) { - Hash h = drvHashes[i->first]; + for (auto & i : drv.inputDrvs) { + Hash h = drvHashes[i.first]; if (h.type == htUnknown) { - assert(store.isValidPath(i->first)); - Derivation drv2 = readDerivation(i->first); + assert(store.isValidPath(i.first)); + Derivation drv2 = readDerivation(i.first); h = hashDerivationModulo(store, drv2); - drvHashes[i->first] = h; + drvHashes[i.first] = h; } - inputs2[printHash(h)] = i->second; + inputs2[printHash(h)] = i.second; } drv.inputDrvs = inputs2; diff --git a/src/libstore/gc.cc b/src/libstore/gc.cc index 8d7da67f5..998a7516a 100644 --- a/src/libstore/gc.cc +++ b/src/libstore/gc.cc @@ -350,15 +350,14 @@ static void addAdditionalRoots(StoreAPI & store, PathSet & roots) StringSet paths = tokenizeString(result, "\n"); - foreach (StringSet::iterator, i, paths) { - if (isInStore(*i)) { - Path path = toStorePath(*i); + for (auto & i : paths) + if (isInStore(i)) { + Path path = toStorePath(i); if (roots.find(path) == roots.end() && store.isValidPath(path)) { debug(format("got additional root ‘%1%’") % path); roots.insert(path); } } - } } @@ -408,8 +407,8 @@ void LocalStore::deletePathRecursive(GCState & state, const Path & path) if (isValidPath(path)) { PathSet referrers; queryReferrers(path, referrers); - foreach (PathSet::iterator, i, referrers) - if (*i != path) deletePathRecursive(state, *i); + for (auto & i : referrers) + if (i != path) deletePathRecursive(state, i); size = queryPathInfo(path).narSize; invalidatePathChecked(path); } @@ -487,22 +486,22 @@ bool LocalStore::canReachRoot(GCState & state, PathSet & visited, const Path & p don't delete the derivation if any of the outputs are alive. */ if (state.gcKeepDerivations && isDerivation(path)) { PathSet outputs = queryDerivationOutputs(path); - foreach (PathSet::iterator, i, outputs) - if (isValidPath(*i) && queryDeriver(*i) == path) - incoming.insert(*i); + for (auto & i : outputs) + if (isValidPath(i) && queryDeriver(i) == path) + incoming.insert(i); } /* If gc-keep-outputs is set, then don't delete this path if there are derivers of this path that are not garbage. */ if (state.gcKeepOutputs) { PathSet derivers = queryValidDerivers(path); - foreach (PathSet::iterator, i, derivers) - incoming.insert(*i); + for (auto & i : derivers) + incoming.insert(i); } - foreach (PathSet::iterator, i, incoming) - if (*i != path) - if (canReachRoot(state, visited, *i)) { + for (auto & i : incoming) + if (i != path) + if (canReachRoot(state, visited, i)) { state.alive.insert(path); return true; } @@ -622,7 +621,7 @@ void LocalStore::collectGarbage(const GCOptions & options, GCResults & results) printMsg(lvlError, format("finding garbage collector roots...")); Roots rootMap = options.ignoreLiveness ? Roots() : findRoots(); - foreach (Roots::iterator, i, rootMap) state.roots.insert(i->second); + for (auto & i : rootMap) state.roots.insert(i.second); /* Add additional roots returned by the program specified by the NIX_ROOT_FINDER environment variable. This is typically used @@ -659,11 +658,11 @@ void LocalStore::collectGarbage(const GCOptions & options, GCResults & results) if (options.action == GCOptions::gcDeleteSpecific) { - foreach (PathSet::iterator, i, options.pathsToDelete) { - assertStorePath(*i); - tryToDelete(state, *i); - if (state.dead.find(*i) == state.dead.end()) - throw Error(format("cannot delete path ‘%1%’ since it is still alive") % *i); + for (auto & i : options.pathsToDelete) { + assertStorePath(i); + tryToDelete(state, i); + if (state.dead.find(i) == state.dead.end()) + throw Error(format("cannot delete path ‘%1%’ since it is still alive") % i); } } else if (options.maxFreed > 0) { @@ -707,8 +706,8 @@ void LocalStore::collectGarbage(const GCOptions & options, GCResults & results) vector entries_(entries.begin(), entries.end()); random_shuffle(entries_.begin(), entries_.end()); - foreach (vector::iterator, i, entries_) - tryToDelete(state, *i); + for (auto & i : entries_) + tryToDelete(state, i); } catch (GCLimitReached & e) { } diff --git a/src/libstore/globals.cc b/src/libstore/globals.cc index 50374f782..73f848943 100644 --- a/src/libstore/globals.cc +++ b/src/libstore/globals.cc @@ -248,12 +248,12 @@ template void Settings::_get(N & res, const string & name) string Settings::pack() { string s; - foreach (SettingsMap::iterator, i, settings) { - if (i->first.find('\n') != string::npos || - i->first.find('=') != string::npos || - i->second.find('\n') != string::npos) + for (auto & i : settings) { + if (i.first.find('\n') != string::npos || + i.first.find('=') != string::npos || + i.second.find('\n') != string::npos) throw Error("illegal option name/value"); - s += i->first; s += '='; s += i->second; s += '\n'; + s += i.first; s += '='; s += i.second; s += '\n'; } return s; } @@ -261,11 +261,11 @@ string Settings::pack() void Settings::unpack(const string & pack) { Strings lines = tokenizeString(pack, "\n"); - foreach (Strings::iterator, i, lines) { - string::size_type eq = i->find('='); + for (auto & i : lines) { + string::size_type eq = i.find('='); if (eq == string::npos) throw Error("illegal option name/value"); - set(i->substr(0, eq), i->substr(eq + 1)); + set(i.substr(0, eq), i.substr(eq + 1)); } } diff --git a/src/libstore/local-store.cc b/src/libstore/local-store.cc index 074c3394f..319f1c719 100644 --- a/src/libstore/local-store.cc +++ b/src/libstore/local-store.cc @@ -367,13 +367,13 @@ LocalStore::LocalStore(bool reserveSpace) LocalStore::~LocalStore() { try { - foreach (RunningSubstituters::iterator, i, runningSubstituters) { - if (i->second.disabled) continue; - i->second.to.close(); - i->second.from.close(); - i->second.error.close(); - if (i->second.pid != -1) - i->second.pid.wait(true); + for (auto & i : runningSubstituters) { + if (i.second.disabled) continue; + i.second.to.close(); + i.second.from.close(); + i.second.error.close(); + if (i.second.pid != -1) + i.second.pid.wait(true); } } catch (...) { ignoreException(); @@ -671,19 +671,19 @@ void LocalStore::checkDerivationOutputs(const Path & drvPath, const Derivation & else { Derivation drvCopy(drv); - foreach (DerivationOutputs::iterator, i, drvCopy.outputs) { - i->second.path = ""; - drvCopy.env[i->first] = ""; + for (auto & i : drvCopy.outputs) { + i.second.path = ""; + drvCopy.env[i.first] = ""; } Hash h = hashDerivationModulo(*this, drvCopy); - foreach (DerivationOutputs::const_iterator, i, drv.outputs) { - Path outPath = makeOutputPath(i->first, h, drvName); - StringPairs::const_iterator j = drv.env.find(i->first); - if (i->second.path != outPath || j == drv.env.end() || j->second != outPath) + for (auto & i : drv.outputs) { + Path outPath = makeOutputPath(i.first, h, drvName); + StringPairs::const_iterator j = drv.env.find(i.first); + if (i.second.path != outPath || j == drv.env.end() || j->second != outPath) throw Error(format("derivation ‘%1%’ has incorrect output ‘%2%’, should be ‘%3%’") - % drvPath % i->second.path % outPath); + % drvPath % i.second.path % outPath); } } } @@ -721,11 +721,11 @@ unsigned long long LocalStore::addValidPath(const ValidPathInfo & info, bool che registration above is undone. */ if (checkOutputs) checkDerivationOutputs(info.path, drv); - foreach (DerivationOutputs::iterator, i, drv.outputs) { + for (auto & i : drv.outputs) { SQLiteStmtUse use(stmtAddDerivationOutput); stmtAddDerivationOutput.bind(id); - stmtAddDerivationOutput.bind(i->first); - stmtAddDerivationOutput.bind(i->second.path); + stmtAddDerivationOutput.bind(i.first); + stmtAddDerivationOutput.bind(i.second.path); if (sqlite3_step(stmtAddDerivationOutput) != SQLITE_DONE) throwSQLiteError(db, format("adding derivation output for ‘%1%’ in database") % info.path); } @@ -796,11 +796,11 @@ void LocalStore::clearFailedPaths(const PathSet & paths) retry_sqlite { SQLiteTxn txn(db); - foreach (PathSet::const_iterator, i, paths) { + for (auto & i : paths) { SQLiteStmtUse use(stmtClearFailedPath); - stmtClearFailedPath.bind(*i); + stmtClearFailedPath.bind(i); if (sqlite3_step(stmtClearFailedPath) != SQLITE_DONE) - throwSQLiteError(db, format("clearing failed path ‘%1%’ in database") % *i); + throwSQLiteError(db, format("clearing failed path ‘%1%’ in database") % i); } txn.commit(); @@ -923,8 +923,8 @@ PathSet LocalStore::queryValidPaths(const PathSet & paths) { retry_sqlite { PathSet res; - foreach (PathSet::const_iterator, i, paths) - if (isValidPath_(*i)) res.insert(*i); + for (auto & i : paths) + if (isValidPath_(i)) res.insert(i); return res; } end_retry_sqlite; } @@ -1212,14 +1212,14 @@ template T LocalStore::getIntLineFromSubstituter(RunningSubstituter & r PathSet LocalStore::querySubstitutablePaths(const PathSet & paths) { PathSet res; - foreach (Paths::iterator, i, settings.substituters) { + for (auto & i : settings.substituters) { if (res.size() == paths.size()) break; - RunningSubstituter & run(runningSubstituters[*i]); - startSubstituter(*i, run); + RunningSubstituter & run(runningSubstituters[i]); + startSubstituter(i, run); if (run.disabled) continue; string s = "have "; - foreach (PathSet::const_iterator, j, paths) - if (res.find(*j) == res.end()) { s += *j; s += " "; } + for (auto & j : paths) + if (res.find(j) == res.end()) { s += j; s += " "; } writeLine(run.to, s); while (true) { /* FIXME: we only read stderr when an error occurs, so @@ -1243,8 +1243,8 @@ void LocalStore::querySubstitutablePathInfos(const Path & substituter, if (run.disabled) return; string s = "info "; - foreach (PathSet::const_iterator, i, paths) - if (infos.find(*i) == infos.end()) { s += *i; s += " "; } + for (auto & i : paths) + if (infos.find(i) == infos.end()) { s += i; s += " "; } writeLine(run.to, s); while (true) { @@ -1272,9 +1272,9 @@ void LocalStore::querySubstitutablePathInfos(const PathSet & paths, SubstitutablePathInfos & infos) { PathSet todo = paths; - foreach (Paths::iterator, i, settings.substituters) { + for (auto & i : settings.substituters) { if (todo.empty()) break; - querySubstitutablePathInfos(*i, todo, infos); + querySubstitutablePathInfos(i, todo, infos); } } @@ -1304,30 +1304,30 @@ void LocalStore::registerValidPaths(const ValidPathInfos & infos) SQLiteTxn txn(db); PathSet paths; - foreach (ValidPathInfos::const_iterator, i, infos) { - assert(i->hash.type == htSHA256); - if (isValidPath_(i->path)) - updatePathInfo(*i); + for (auto & i : infos) { + assert(i.hash.type == htSHA256); + if (isValidPath_(i.path)) + updatePathInfo(i); else - addValidPath(*i, false); - paths.insert(i->path); + addValidPath(i, false); + paths.insert(i.path); } - foreach (ValidPathInfos::const_iterator, i, infos) { - unsigned long long referrer = queryValidPathId(i->path); - foreach (PathSet::iterator, j, i->references) - addReference(referrer, queryValidPathId(*j)); + for (auto & i : infos) { + unsigned long long referrer = queryValidPathId(i.path); + for (auto & j : i.references) + addReference(referrer, queryValidPathId(j)); } /* Check that the derivation outputs are correct. We can't do this in addValidPath() above, because the references might not be valid yet. */ - foreach (ValidPathInfos::const_iterator, i, infos) - if (isDerivation(i->path)) { + for (auto & i : infos) + if (isDerivation(i.path)) { // FIXME: inefficient; we already loaded the // derivation in addValidPath(). - Derivation drv = readDerivation(i->path); - checkDerivationOutputs(i->path, drv); + Derivation drv = readDerivation(i.path); + checkDerivationOutputs(i.path, drv); } /* Do a topological sort of the paths. This will throw an @@ -1761,8 +1761,8 @@ bool LocalStore::verifyStore(bool checkContents, bool repair) PathSet validPaths2 = queryAllValidPaths(), validPaths, done; - foreach (PathSet::iterator, i, validPaths2) - verifyPath(*i, store, done, validPaths, repair, errors); + for (auto & i : validPaths2) + verifyPath(i, store, done, validPaths, repair, errors); /* Release the GC lock so that checking content hashes (which can take ages) doesn't block the GC or builds. */ @@ -1774,33 +1774,33 @@ bool LocalStore::verifyStore(bool checkContents, bool repair) Hash nullHash(htSHA256); - foreach (PathSet::iterator, i, validPaths) { + for (auto & i : validPaths) { try { - ValidPathInfo info = queryPathInfo(*i); + ValidPathInfo info = queryPathInfo(i); /* Check the content hash (optionally - slow). */ - printMsg(lvlTalkative, format("checking contents of ‘%1%’") % *i); - HashResult current = hashPath(info.hash.type, *i); + printMsg(lvlTalkative, format("checking contents of ‘%1%’") % i); + HashResult current = hashPath(info.hash.type, i); if (info.hash != nullHash && info.hash != current.first) { printMsg(lvlError, format("path ‘%1%’ was modified! " "expected hash ‘%2%’, got ‘%3%’") - % *i % printHash(info.hash) % printHash(current.first)); - if (repair) repairPath(*i); else errors = true; + % i % printHash(info.hash) % printHash(current.first)); + if (repair) repairPath(i); else errors = true; } else { bool update = false; /* Fill in missing hashes. */ if (info.hash == nullHash) { - printMsg(lvlError, format("fixing missing hash on ‘%1%’") % *i); + printMsg(lvlError, format("fixing missing hash on ‘%1%’") % i); info.hash = current.first; update = true; } /* Fill in missing narSize fields (from old stores). */ if (info.narSize == 0) { - printMsg(lvlError, format("updating size field on ‘%1%’ to %2%") % *i % current.second); + printMsg(lvlError, format("updating size field on ‘%1%’ to %2%") % i % current.second); info.narSize = current.second; update = true; } @@ -1812,7 +1812,7 @@ bool LocalStore::verifyStore(bool checkContents, bool repair) } catch (Error & e) { /* It's possible that the path got GC'ed, so ignore errors on invalid paths. */ - if (isValidPath(*i)) + if (isValidPath(i)) printMsg(lvlError, format("error: %1%") % e.msg()); else printMsg(lvlError, format("warning: %1%") % e.msg()); @@ -1844,10 +1844,10 @@ void LocalStore::verifyPath(const Path & path, const PathSet & store, first, then we can invalidate this path as well. */ bool canInvalidate = true; PathSet referrers; queryReferrers(path, referrers); - foreach (PathSet::iterator, i, referrers) - if (*i != path) { - verifyPath(*i, store, done, validPaths, repair, errors); - if (validPaths.find(*i) != validPaths.end()) + for (auto & i : referrers) + if (i != path) { + verifyPath(i, store, done, validPaths, repair, errors); + if (validPaths.find(i) != validPaths.end()) canInvalidate = false; } @@ -1925,12 +1925,12 @@ ValidPathInfo LocalStore::queryPathInfoOld(const Path & path) /* Parse it. */ Strings lines = tokenizeString(info, "\n"); - foreach (Strings::iterator, i, lines) { - string::size_type p = i->find(':'); + for (auto & i : lines) { + string::size_type p = i.find(':'); if (p == string::npos) - throw Error(format("corrupt line in ‘%1%’: %2%") % infoFile % *i); - string name(*i, 0, p); - string value(*i, p + 2); + throw Error(format("corrupt line in ‘%1%’: %2%") % infoFile % i); + string name(i, 0, p); + string value(i, p + 2); if (name == "References") { Strings refs = tokenizeString(value, " "); res.references = PathSet(refs.begin(), refs.end()); @@ -1960,18 +1960,18 @@ void LocalStore::upgradeStore6() SQLiteTxn txn(db); - foreach (PathSet::iterator, i, validPaths) { - addValidPath(queryPathInfoOld(*i), false); + for (auto & i : validPaths) { + addValidPath(queryPathInfoOld(i), false); std::cerr << "."; } std::cerr << "|"; - foreach (PathSet::iterator, i, validPaths) { - ValidPathInfo info = queryPathInfoOld(*i); - unsigned long long referrer = queryValidPathId(*i); - foreach (PathSet::iterator, j, info.references) - addReference(referrer, queryValidPathId(*j)); + for (auto & i : validPaths) { + ValidPathInfo info = queryPathInfoOld(i); + unsigned long long referrer = queryValidPathId(i); + for (auto & j : info.references) + addReference(referrer, queryValidPathId(j)); std::cerr << "."; } diff --git a/src/libstore/misc.cc b/src/libstore/misc.cc index 736434ca4..61a976c02 100644 --- a/src/libstore/misc.cc +++ b/src/libstore/misc.cc @@ -28,15 +28,15 @@ void computeFSClosure(StoreAPI & store, const Path & path, if (includeOutputs) { PathSet derivers = store.queryValidDerivers(path); - foreach (PathSet::iterator, i, derivers) - edges.insert(*i); + for (auto & i : derivers) + edges.insert(i); } if (includeDerivers && isDerivation(path)) { PathSet outputs = store.queryDerivationOutputs(path); - foreach (PathSet::iterator, i, outputs) - if (store.isValidPath(*i) && store.queryDeriver(*i) == path) - edges.insert(*i); + for (auto & i : outputs) + if (store.isValidPath(i) && store.queryDeriver(i) == path) + edges.insert(i); } } else { @@ -44,8 +44,8 @@ void computeFSClosure(StoreAPI & store, const Path & path, if (includeOutputs && isDerivation(path)) { PathSet outputs = store.queryDerivationOutputs(path); - foreach (PathSet::iterator, i, outputs) - if (store.isValidPath(*i)) edges.insert(*i); + for (auto & i : outputs) + if (store.isValidPath(i)) edges.insert(i); } if (includeDerivers) { @@ -54,15 +54,15 @@ void computeFSClosure(StoreAPI & store, const Path & path, } } - foreach (PathSet::iterator, i, edges) - computeFSClosure(store, *i, paths, flipDirection, includeOutputs, includeDerivers); + for (auto & i : edges) + computeFSClosure(store, i, paths, flipDirection, includeOutputs, includeDerivers); } Path findOutput(const Derivation & drv, string id) { - foreach (DerivationOutputs::const_iterator, i, drv.outputs) - if (i->first == id) return i->second.path; + for (auto & i : drv.outputs) + if (i.first == id) return i.second.path; throw Error(format("derivation has no output ‘%1%’") % id); } @@ -98,36 +98,36 @@ void queryMissing(StoreAPI & store, const PathSet & targets, PathSet query, todoDrv, todoNonDrv; - foreach (PathSet::iterator, i, todo) { - if (done.find(*i) != done.end()) continue; - done.insert(*i); + for (auto & i : todo) { + if (done.find(i) != done.end()) continue; + done.insert(i); - DrvPathWithOutputs i2 = parseDrvPathWithOutputs(*i); + DrvPathWithOutputs i2 = parseDrvPathWithOutputs(i); if (isDerivation(i2.first)) { if (!store.isValidPath(i2.first)) { // FIXME: we could try to substitute p. - unknown.insert(*i); + unknown.insert(i); continue; } Derivation drv = derivationFromPath(store, i2.first); PathSet invalid; - foreach (DerivationOutputs::iterator, j, drv.outputs) - if (wantOutput(j->first, i2.second) - && !store.isValidPath(j->second.path)) - invalid.insert(j->second.path); + for (auto & j : drv.outputs) + if (wantOutput(j.first, i2.second) + && !store.isValidPath(j.second.path)) + invalid.insert(j.second.path); if (invalid.empty()) continue; - todoDrv.insert(*i); + todoDrv.insert(i); if (settings.useSubstitutes && substitutesAllowed(drv)) query.insert(invalid.begin(), invalid.end()); } else { - if (store.isValidPath(*i)) continue; - query.insert(*i); - todoNonDrv.insert(*i); + if (store.isValidPath(i)) continue; + query.insert(i); + todoNonDrv.insert(i); } } @@ -136,8 +136,8 @@ void queryMissing(StoreAPI & store, const PathSet & targets, SubstitutablePathInfos infos; store.querySubstitutablePathInfos(query, infos); - foreach (PathSet::iterator, i, todoDrv) { - DrvPathWithOutputs i2 = parseDrvPathWithOutputs(*i); + for (auto & i : todoDrv) { + DrvPathWithOutputs i2 = parseDrvPathWithOutputs(i); // FIXME: cache this Derivation drv = derivationFromPath(store, i2.first); @@ -145,13 +145,13 @@ void queryMissing(StoreAPI & store, const PathSet & targets, PathSet outputs; bool mustBuild = false; if (settings.useSubstitutes && substitutesAllowed(drv)) { - foreach (DerivationOutputs::iterator, j, drv.outputs) { - if (!wantOutput(j->first, i2.second)) continue; - if (!store.isValidPath(j->second.path)) { - if (infos.find(j->second.path) == infos.end()) + for (auto & j : drv.outputs) { + if (!wantOutput(j.first, i2.second)) continue; + if (!store.isValidPath(j.second.path)) { + if (infos.find(j.second.path) == infos.end()) mustBuild = true; else - outputs.insert(j->second.path); + outputs.insert(j.second.path); } } } else @@ -160,22 +160,22 @@ void queryMissing(StoreAPI & store, const PathSet & targets, if (mustBuild) { willBuild.insert(i2.first); todo.insert(drv.inputSrcs.begin(), drv.inputSrcs.end()); - foreach (DerivationInputs::iterator, j, drv.inputDrvs) - todo.insert(makeDrvPathWithOutputs(j->first, j->second)); + for (auto & j : drv.inputDrvs) + todo.insert(makeDrvPathWithOutputs(j.first, j.second)); } else todoNonDrv.insert(outputs.begin(), outputs.end()); } - foreach (PathSet::iterator, i, todoNonDrv) { - done.insert(*i); - SubstitutablePathInfos::iterator info = infos.find(*i); + for (auto & i : todoNonDrv) { + done.insert(i); + SubstitutablePathInfos::iterator info = infos.find(i); if (info != infos.end()) { - willSubstitute.insert(*i); + willSubstitute.insert(i); downloadSize += info->second.downloadSize; narSize += info->second.narSize; todo.insert(info->second.references.begin(), info->second.references.end()); } else - unknown.insert(*i); + unknown.insert(i); } } } @@ -196,11 +196,11 @@ static void dfsVisit(StoreAPI & store, const PathSet & paths, if (store.isValidPath(path)) store.queryReferences(path, references); - foreach (PathSet::iterator, i, references) + for (auto & i : references) /* Don't traverse into paths that don't exist. That can happen due to substitutes for non-existent paths. */ - if (*i != path && paths.find(*i) != paths.end()) - dfsVisit(store, paths, *i, visited, sorted, parents); + if (i != path && paths.find(i) != paths.end()) + dfsVisit(store, paths, i, visited, sorted, parents); sorted.push_front(path); parents.erase(path); @@ -211,8 +211,8 @@ Paths topoSortPaths(StoreAPI & store, const PathSet & paths) { Paths sorted; PathSet visited, parents; - foreach (PathSet::const_iterator, i, paths) - dfsVisit(store, paths, *i, visited, sorted, parents); + for (auto & i : paths) + dfsVisit(store, paths, i, visited, sorted, parents); return sorted; } diff --git a/src/libstore/optimise-store.cc b/src/libstore/optimise-store.cc index 55c252b9b..6f6696179 100644 --- a/src/libstore/optimise-store.cc +++ b/src/libstore/optimise-store.cc @@ -99,8 +99,8 @@ void LocalStore::optimisePath_(OptimiseStats & stats, const Path & path, InodeHa if (S_ISDIR(st.st_mode)) { Strings names = readDirectoryIgnoringInodes(path, inodeHash); - foreach (Strings::iterator, i, names) - optimisePath_(stats, path + "/" + *i, inodeHash); + for (auto & i : names) + optimisePath_(stats, path + "/" + i, inodeHash); return; } @@ -218,11 +218,11 @@ void LocalStore::optimiseStore(OptimiseStats & stats) PathSet paths = queryAllValidPaths(); InodeHash inodeHash = loadInodeHash(); - foreach (PathSet::iterator, i, paths) { - addTempRoot(*i); - if (!isValidPath(*i)) continue; /* path was GC'ed, probably */ - startNest(nest, lvlChatty, format("hashing files in ‘%1%’") % *i); - optimisePath_(stats, *i, inodeHash); + for (auto & i : paths) { + addTempRoot(i); + if (!isValidPath(i)) continue; /* path was GC'ed, probably */ + startNest(nest, lvlChatty, format("hashing files in ‘%1%’") % i); + optimisePath_(stats, i, inodeHash); } } diff --git a/src/libstore/pathlocks.cc b/src/libstore/pathlocks.cc index 9db37e8f9..1c87034f8 100644 --- a/src/libstore/pathlocks.cc +++ b/src/libstore/pathlocks.cc @@ -60,7 +60,7 @@ bool lockFile(int fd, LockType lockType, bool wait) while (fcntl(fd, F_SETLK, &lock) != 0) { checkInterrupt(); if (errno == EACCES || errno == EAGAIN) return false; - if (errno != EINTR) + if (errno != EINTR) throw SysError(format("acquiring/releasing lock")); } } @@ -94,7 +94,7 @@ bool PathLocks::lockPaths(const PathSet & _paths, const string & waitMsg, bool wait) { assert(fds.empty()); - + /* Note that `fds' is built incrementally so that the destructor will only release those locks that we have already acquired. */ @@ -102,11 +102,10 @@ bool PathLocks::lockPaths(const PathSet & _paths, the same order, thus preventing deadlocks. */ Paths paths(_paths.begin(), _paths.end()); paths.sort(); - + /* Acquire the lock for each path. */ - foreach (Paths::iterator, i, paths) { + for (auto & path : paths) { checkInterrupt(); - Path path = *i; Path lockPath = path + ".lock"; debug(format("locking path ‘%1%’") % path); @@ -115,11 +114,11 @@ bool PathLocks::lockPaths(const PathSet & _paths, throw Error("deadlock: trying to re-acquire self-held lock"); AutoCloseFD fd; - + while (1) { /* Open/create the lock file. */ - fd = openLockFile(lockPath, true); + fd = openLockFile(lockPath, true); /* Acquire an exclusive lock. */ if (!lockFile(fd, ltWrite, false)) { @@ -168,15 +167,15 @@ PathLocks::~PathLocks() void PathLocks::unlock() { - foreach (list::iterator, i, fds) { - if (deletePaths) deleteLockFile(i->second, i->first); + for (auto & i : fds) { + if (deletePaths) deleteLockFile(i.second, i.first); - lockedPaths.erase(i->second); - if (close(i->first) == -1) + lockedPaths.erase(i.second); + if (close(i.first) == -1) printMsg(lvlError, - format("error (ignored): cannot close lock file on ‘%1%’") % i->second); + format("error (ignored): cannot close lock file on ‘%1%’") % i.second); - debug(format("lock released on ‘%1%’") % i->second); + debug(format("lock released on ‘%1%’") % i.second); } fds.clear(); @@ -195,5 +194,5 @@ bool pathIsLockedByMe(const Path & path) return lockedPaths.find(lockPath) != lockedPaths.end(); } - + } diff --git a/src/libstore/references.cc b/src/libstore/references.cc index 521244a31..33eab5a24 100644 --- a/src/libstore/references.cc +++ b/src/libstore/references.cc @@ -13,7 +13,7 @@ namespace nix { static unsigned int refLength = 32; /* characters */ -static void search(const unsigned char * s, unsigned int len, +static void search(const unsigned char * s, unsigned int len, StringSet & hashes, StringSet & seen) { static bool initialised = false; @@ -24,7 +24,7 @@ static void search(const unsigned char * s, unsigned int len, isBase32[(unsigned char) base32Chars[i]] = true; initialised = true; } - + for (unsigned int i = 0; i + refLength <= len; ) { int j; bool match = true; @@ -56,7 +56,7 @@ struct RefScanSink : Sink string tail; RefScanSink() : hashSink(htSHA256) { } - + void operator () (const unsigned char * data, size_t len); }; @@ -89,17 +89,17 @@ PathSet scanForReferences(const string & path, /* For efficiency (and a higher hit rate), just search for the hash part of the file name. (This assumes that all references have the form `HASH-bla'). */ - foreach (PathSet::const_iterator, i, refs) { - string baseName = baseNameOf(*i); + for (auto & i : refs) { + string baseName = baseNameOf(i); string::size_type pos = baseName.find('-'); if (pos == string::npos) - throw Error(format("bad reference ‘%1%’") % *i); + throw Error(format("bad reference ‘%1%’") % i); string s = string(baseName, 0, pos); assert(s.size() == refLength); assert(backMap.find(s) == backMap.end()); // parseHash(htSHA256, s); sink.hashes.insert(s); - backMap[s] = *i; + backMap[s] = i; } /* Look for the hashes in the NAR dump of the path. */ @@ -107,14 +107,14 @@ PathSet scanForReferences(const string & path, /* Map the hashes found back to their store paths. */ PathSet found; - foreach (StringSet::iterator, i, sink.seen) { + for (auto & i : sink.seen) { std::map::iterator j; - if ((j = backMap.find(*i)) == backMap.end()) abort(); + if ((j = backMap.find(i)) == backMap.end()) abort(); found.insert(j->second); } hash = sink.hashSink.finish(); - + return found; } diff --git a/src/libstore/remote-store.cc b/src/libstore/remote-store.cc index acabd6cf0..6b9d5cb25 100644 --- a/src/libstore/remote-store.cc +++ b/src/libstore/remote-store.cc @@ -31,7 +31,7 @@ Path readStorePath(Source & from) template T readStorePaths(Source & from) { T paths = readStrings(from); - foreach (typename T::iterator, i, paths) assertStorePath(*i); + for (auto & i : paths) assertStorePath(i); return paths; } @@ -166,9 +166,9 @@ void RemoteStore::setOptions() if (overrides["ssh-auth-sock"] == "") overrides["ssh-auth-sock"] = getEnv("SSH_AUTH_SOCK"); writeInt(overrides.size(), to); - foreach (Settings::SettingsMap::iterator, i, overrides) { - writeString(i->first, to); - writeString(i->second, to); + for (auto & i : overrides) { + writeString(i.first, to); + writeString(i.second, to); } } @@ -192,8 +192,8 @@ PathSet RemoteStore::queryValidPaths(const PathSet & paths) openConnection(); if (GET_PROTOCOL_MINOR(daemonVersion) < 12) { PathSet res; - foreach (PathSet::const_iterator, i, paths) - if (isValidPath(*i)) res.insert(*i); + for (auto & i : paths) + if (isValidPath(i)) res.insert(i); return res; } else { writeInt(wopQueryValidPaths, to); @@ -218,11 +218,11 @@ PathSet RemoteStore::querySubstitutablePaths(const PathSet & paths) openConnection(); if (GET_PROTOCOL_MINOR(daemonVersion) < 12) { PathSet res; - foreach (PathSet::const_iterator, i, paths) { + for (auto & i : paths) { writeInt(wopHasSubstitutes, to); - writeString(*i, to); + writeString(i, to); processStderr(); - if (readInt(from)) res.insert(*i); + if (readInt(from)) res.insert(i); } return res; } else { @@ -245,10 +245,10 @@ void RemoteStore::querySubstitutablePathInfos(const PathSet & paths, if (GET_PROTOCOL_MINOR(daemonVersion) < 12) { - foreach (PathSet::const_iterator, i, paths) { + for (auto & i : paths) { SubstitutablePathInfo info; writeInt(wopQuerySubstitutablePathInfo, to); - writeString(*i, to); + writeString(i, to); processStderr(); unsigned int reply = readInt(from); if (reply == 0) continue; @@ -257,7 +257,7 @@ void RemoteStore::querySubstitutablePathInfos(const PathSet & paths, info.references = readStorePaths(from); info.downloadSize = readLongLong(from); info.narSize = GET_PROTOCOL_MINOR(daemonVersion) >= 7 ? readLongLong(from) : 0; - infos[*i] = info; + infos[i] = info; } } else { @@ -473,8 +473,8 @@ void RemoteStore::buildPaths(const PathSet & drvPaths, BuildMode buildMode) /* For backwards compatibility with old daemons, strip output identifiers. */ PathSet drvPaths2; - foreach (PathSet::const_iterator, i, drvPaths) - drvPaths2.insert(string(*i, 0, i->find('!'))); + for (auto & i : drvPaths) + drvPaths2.insert(string(i, 0, i.find('!'))); writeStrings(drvPaths2, to); } processStderr(); diff --git a/src/libstore/store-api.cc b/src/libstore/store-api.cc index d3cbd1e7d..80f17d109 100644 --- a/src/libstore/store-api.cc +++ b/src/libstore/store-api.cc @@ -82,14 +82,14 @@ void checkStoreName(const string & name) reasons (e.g., "." and ".."). */ if (string(name, 0, 1) == ".") throw Error(format("illegal name: ‘%1%’") % name); - foreach (string::const_iterator, i, name) - if (!((*i >= 'A' && *i <= 'Z') || - (*i >= 'a' && *i <= 'z') || - (*i >= '0' && *i <= '9') || - validChars.find(*i) != string::npos)) + for (auto & i : name) + if (!((i >= 'A' && i <= 'Z') || + (i >= 'a' && i <= 'z') || + (i >= '0' && i <= '9') || + validChars.find(i) != string::npos)) { throw Error(format("invalid character ‘%1%’ in name ‘%2%’") - % *i % name); + % i % name); } } @@ -101,22 +101,22 @@ void checkStoreName(const string & name) where = the location of the Nix store, usually /nix/store - + = a human readable name for the path, typically obtained from the name attribute of the derivation, or the name of the source file from which the store path is created. For derivation outputs other than the default "out" output, the string "-" is suffixed to . - + = base-32 representation of the first 160 bits of a SHA-256 hash of ; the hash part of the store name - + = the string ":sha256:

::"; note that it includes the location of the store as well as the name to make sure that changes to either of those are reflected in the hash (e.g. you won't get /nix/store/-name1 and /nix/store/-name2 with equal hash parts). - + = one of: "text:::..." for plain text files written to the store using @@ -219,9 +219,9 @@ Path computeStorePathForText(const string & name, const string & s, hacky, but we can't put them in `s' since that would be ambiguous. */ string type = "text"; - foreach (PathSet::const_iterator, i, references) { + for (auto & i : references) { type += ":"; - type += *i; + type += i; } return makeStorePath(type, hash, name); } @@ -234,11 +234,11 @@ string StoreAPI::makeValidityRegistration(const PathSet & paths, bool showDerivers, bool showHash) { string s = ""; - - foreach (PathSet::iterator, i, paths) { - s += *i + "\n"; - ValidPathInfo info = queryPathInfo(*i); + for (auto & i : paths) { + s += i + "\n"; + + ValidPathInfo info = queryPathInfo(i); if (showHash) { s += printHash(info.hash) + "\n"; @@ -250,8 +250,8 @@ string StoreAPI::makeValidityRegistration(const PathSet & paths, s += (format("%1%\n") % info.references.size()).str(); - foreach (PathSet::iterator, j, info.references) - s += *j + "\n"; + for (auto & j : info.references) + s += j + "\n"; } return s; @@ -286,9 +286,9 @@ ValidPathInfo decodeValidPathInfo(std::istream & str, bool hashGiven) string showPaths(const PathSet & paths) { string s; - foreach (PathSet::const_iterator, i, paths) { + for (auto & i : paths) { if (s.size() != 0) s += ", "; - s += "‘" + *i + "’"; + s += "‘" + i + "’"; } return s; } @@ -297,9 +297,9 @@ string showPaths(const PathSet & paths) void exportPaths(StoreAPI & store, const Paths & paths, bool sign, Sink & sink) { - foreach (Paths::const_iterator, i, paths) { + for (auto & i : paths) { writeInt(1, sink); - store.exportPath(*i, sign, sink); + store.exportPath(i, sign, sink); } writeInt(0, sink); } diff --git a/src/libutil/serialise.cc b/src/libutil/serialise.cc index aa16a20e6..789227102 100644 --- a/src/libutil/serialise.cc +++ b/src/libutil/serialise.cc @@ -200,8 +200,8 @@ Sink & operator << (Sink & out, const string & s) template void writeStrings(const T & ss, Sink & sink) { writeInt(ss.size(), sink); - foreach (typename T::const_iterator, i, ss) - writeString(*i, sink); + for (auto & i : ss) + writeString(i, sink); } template void writeStrings(const Paths & ss, Sink & sink); diff --git a/src/libutil/util.cc b/src/libutil/util.cc index 596b79e10..f54fd5fb6 100644 --- a/src/libutil/util.cc +++ b/src/libutil/util.cc @@ -1060,9 +1060,9 @@ template vector tokenizeString(const string & s, const string & separato string concatStringsSep(const string & sep, const Strings & ss) { string s; - foreach (Strings::const_iterator, i, ss) { + for (auto & i : ss) { if (s.size() != 0) s += sep; - s += *i; + s += i; } return s; } @@ -1071,9 +1071,9 @@ string concatStringsSep(const string & sep, const Strings & ss) string concatStringsSep(const string & sep, const StringSet & ss) { string s; - foreach (StringSet::const_iterator, i, ss) { + for (auto & i : ss) { if (s.size() != 0) s += sep; - s += *i; + s += i; } return s; } diff --git a/src/libutil/util.hh b/src/libutil/util.hh index 187e05ece..980cdf4cb 100644 --- a/src/libutil/util.hh +++ b/src/libutil/util.hh @@ -15,13 +15,6 @@ namespace nix { -#define foreach(it_type, it, collection) \ - for (it_type it = (collection).begin(); it != (collection).end(); ++it) - -#define foreach_reverse(it_type, it, collection) \ - for (it_type it = (collection).rbegin(); it != (collection).rend(); ++it) - - /* Return an environment variable. */ string getEnv(const string & key, const string & def = ""); diff --git a/src/libutil/xml-writer.cc b/src/libutil/xml-writer.cc index 01794001b..98bd058d1 100644 --- a/src/libutil/xml-writer.cc +++ b/src/libutil/xml-writer.cc @@ -73,10 +73,10 @@ void XMLWriter::writeEmptyElement(const string & name, void XMLWriter::writeAttrs(const XMLAttrs & attrs) { - for (XMLAttrs::const_iterator i = attrs.begin(); i != attrs.end(); ++i) { - output << " " << i->first << "=\""; - for (unsigned int j = 0; j < i->second.size(); ++j) { - char c = i->second[j]; + for (auto & i : attrs) { + output << " " << i.first << "=\""; + for (unsigned int j = 0; j < i.second.size(); ++j) { + char c = i.second[j]; if (c == '"') output << """; else if (c == '<') output << "<"; else if (c == '>') output << ">"; diff --git a/src/nix-daemon/nix-daemon.cc b/src/nix-daemon/nix-daemon.cc index ad8b0d133..02d552a62 100644 --- a/src/nix-daemon/nix-daemon.cc +++ b/src/nix-daemon/nix-daemon.cc @@ -367,9 +367,9 @@ static void performOp(bool trusted, unsigned int clientVersion, Roots roots = store->findRoots(); stopWork(); writeInt(roots.size(), to); - for (Roots::iterator i = roots.begin(); i != roots.end(); ++i) { - writeString(i->first, to); - writeString(i->second, to); + for (auto & i : roots) { + writeString(i.first, to); + writeString(i.second, to); } break; } @@ -464,12 +464,12 @@ static void performOp(bool trusted, unsigned int clientVersion, store->querySubstitutablePathInfos(paths, infos); stopWork(); writeInt(infos.size(), to); - foreach (SubstitutablePathInfos::iterator, i, infos) { - writeString(i->first, to); - writeString(i->second.deriver, to); - writeStrings(i->second.references, to); - writeLongLong(i->second.downloadSize, to); - writeLongLong(i->second.narSize, to); + for (auto & i : infos) { + writeString(i.first, to); + writeString(i.second.deriver, to); + writeStrings(i.second.references, to); + writeLongLong(i.second.downloadSize, to); + writeLongLong(i.second.narSize, to); } break; } diff --git a/src/nix-env/nix-env.cc b/src/nix-env/nix-env.cc index 3f82345ce..c5c7d2ccc 100644 --- a/src/nix-env/nix-env.cc +++ b/src/nix-env/nix-env.cc @@ -232,9 +232,9 @@ static bool isPrebuilt(EvalState & state, DrvInfo & elem) static void checkSelectorUse(DrvNames & selectors) { /* Check that all selectors have been used. */ - foreach (DrvNames::iterator, i, selectors) - if (i->hits == 0 && i->fullName != "*") - throw Error(format("selector ‘%1%’ matches no derivations") % i->fullName); + for (auto & i : selectors) + if (i.hits == 0 && i.fullName != "*") + throw Error(format("selector ‘%1%’ matches no derivations") % i.fullName); } @@ -248,7 +248,7 @@ static DrvInfos filterBySelector(EvalState & state, const DrvInfos & allElems, DrvInfos elems; set done; - foreach (DrvNames::iterator, i, selectors) { + for (auto & i : selectors) { typedef list > Matches; Matches matches; unsigned int n = 0; @@ -256,8 +256,8 @@ static DrvInfos filterBySelector(EvalState & state, const DrvInfos & allElems, j != allElems.end(); ++j, ++n) { DrvName drvName(j->name); - if (i->matches(drvName)) { - i->hits++; + if (i.matches(drvName)) { + i.hits++; matches.push_back(std::pair(*j, n)); } } @@ -276,47 +276,47 @@ static DrvInfos filterBySelector(EvalState & state, const DrvInfos & allElems, Newest newest; StringSet multiple; - for (Matches::iterator j = matches.begin(); j != matches.end(); ++j) { - DrvName drvName(j->first.name); + for (auto & j : matches) { + DrvName drvName(j.first.name); int d = 1; Newest::iterator k = newest.find(drvName.name); if (k != newest.end()) { - d = j->first.system == k->second.first.system ? 0 : - j->first.system == settings.thisSystem ? 1 : + d = j.first.system == k->second.first.system ? 0 : + j.first.system == settings.thisSystem ? 1 : k->second.first.system == settings.thisSystem ? -1 : 0; if (d == 0) - d = comparePriorities(state, j->first, k->second.first); + d = comparePriorities(state, j.first, k->second.first); if (d == 0) d = compareVersions(drvName.version, DrvName(k->second.first.name).version); } if (d > 0) { newest.erase(drvName.name); - newest.insert(Newest::value_type(drvName.name, *j)); - multiple.erase(j->first.name); + newest.insert(Newest::value_type(drvName.name, j)); + multiple.erase(j.first.name); } else if (d == 0) { - multiple.insert(j->first.name); + multiple.insert(j.first.name); } } matches.clear(); - for (Newest::iterator j = newest.begin(); j != newest.end(); ++j) { - if (multiple.find(j->second.first.name) != multiple.end()) + for (auto & j : newest) { + if (multiple.find(j.second.first.name) != multiple.end()) printMsg(lvlInfo, format("warning: there are multiple derivations named ‘%1%’; using the first one") - % j->second.first.name); - matches.push_back(j->second); + % j.second.first.name); + matches.push_back(j.second); } } /* Insert only those elements in the final list that we haven't inserted before. */ - for (Matches::iterator j = matches.begin(); j != matches.end(); ++j) - if (done.find(j->second) == done.end()) { - done.insert(j->second); - elems.push_back(j->first); + for (auto & j : matches) + if (done.find(j.second) == done.end()) { + done.insert(j.second); + elems.push_back(j.first); } } @@ -370,8 +370,8 @@ static void queryInstSources(EvalState & state, Value vArg; loadSourceExpr(state, instSource.nixExprPath, vArg); - foreach (Strings::const_iterator, i, args) { - Expr * eFun = state.parseExprFromString(*i, absPath(".")); + for (auto & i : args) { + Expr * eFun = state.parseExprFromString(i, absPath(".")); Value vFun, vTmp; state.eval(eFun, vFun); mkApp(vTmp, vFun, vArg); @@ -386,8 +386,8 @@ static void queryInstSources(EvalState & state, derivations). */ case srcStorePaths: { - foreach (Strings::const_iterator, i, args) { - Path path = followLinksToStorePath(*i); + for (auto & i : args) { + Path path = followLinksToStorePath(i); string name = baseNameOf(path); string::size_type dash = name.find('-'); @@ -424,8 +424,8 @@ static void queryInstSources(EvalState & state, case srcAttrPath: { Value vRoot; loadSourceExpr(state, instSource.nixExprPath, vRoot); - foreach (Strings::const_iterator, i, args) { - Value & v(*findAlongAttrPath(state, *i, *instSource.autoArgs, vRoot)); + for (auto & i : args) { + Value & v(*findAlongAttrPath(state, i, *instSource.autoArgs, vRoot)); getDerivations(state, v, "", *instSource.autoArgs, elems, true); } break; @@ -437,12 +437,12 @@ static void queryInstSources(EvalState & state, static void printMissing(EvalState & state, DrvInfos & elems) { PathSet targets; - foreach (DrvInfos::iterator, i, elems) { - Path drvPath = i->queryDrvPath(); + for (auto & i : elems) { + Path drvPath = i.queryDrvPath(); if (drvPath != "") targets.insert(drvPath); else - targets.insert(i->queryOutPath()); + targets.insert(i.queryOutPath()); } printMissing(*store, targets); @@ -465,19 +465,19 @@ static void installDerivations(Globals & globals, queryInstSources(*globals.state, globals.instSource, args, newElemsTmp, true); /* If --prebuilt-only is given, filter out source-only packages. */ - foreach (DrvInfos::iterator, i, newElemsTmp) - if (!globals.prebuiltOnly || isPrebuilt(*globals.state, *i)) - newElems.push_back(*i); + for (auto & i : newElemsTmp) + if (!globals.prebuiltOnly || isPrebuilt(*globals.state, i)) + newElems.push_back(i); StringSet newNames; - for (DrvInfos::iterator i = newElems.begin(); i != newElems.end(); ++i) { + for (auto & i : newElems) { /* `forceName' is a hack to get package names right in some one-click installs, namely those where the name used in the path is not the one we want (e.g., `java-front' versus `java-front-0.9pre15899'). */ if (globals.forceName != "") - i->name = globals.forceName; - newNames.insert(DrvName(i->name).name); + i.name = globals.forceName; + newNames.insert(DrvName(i.name).name); } @@ -491,18 +491,18 @@ static void installDerivations(Globals & globals, if (!globals.removeAll) { DrvInfos installedElems = queryInstalled(*globals.state, profile); - foreach (DrvInfos::iterator, i, installedElems) { - DrvName drvName(i->name); + for (auto & i : installedElems) { + DrvName drvName(i.name); if (!globals.preserveInstalled && newNames.find(drvName.name) != newNames.end() && - !keep(*i)) - printMsg(lvlInfo, format("replacing old ‘%1%’") % i->name); + !keep(i)) + printMsg(lvlInfo, format("replacing old ‘%1%’") % i.name); else - allElems.push_back(*i); + allElems.push_back(i); } - foreach (DrvInfos::iterator, i, newElems) - printMsg(lvlInfo, format("installing ‘%1%’") % i->name); + for (auto & i : newElems) + printMsg(lvlInfo, format("installing ‘%1%’") % i.name); } printMissing(*globals.state, newElems); @@ -555,13 +555,13 @@ static void upgradeDerivations(Globals & globals, /* Go through all installed derivations. */ DrvInfos newElems; - foreach (DrvInfos::iterator, i, installedElems) { - DrvName drvName(i->name); + for (auto & i : installedElems) { + DrvName drvName(i.name); try { - if (keep(*i)) { - newElems.push_back(*i); + if (keep(i)) { + newElems.push_back(i); continue; } @@ -573,10 +573,10 @@ static void upgradeDerivations(Globals & globals, take the one with the highest version. */ DrvInfos::iterator bestElem = availElems.end(); DrvName bestName; - foreach (DrvInfos::iterator, j, availElems) { + for (auto j = availElems.begin(); j != availElems.end(); ++j) { DrvName newName(j->name); if (newName.name == drvName.name) { - int d = comparePriorities(*globals.state, *i, *j); + int d = comparePriorities(*globals.state, i, *j); if (d == 0) d = compareVersions(drvName.version, newName.version); if ((upgradeType == utLt && d < 0) || (upgradeType == utLeq && d <= 0) || @@ -597,17 +597,17 @@ static void upgradeDerivations(Globals & globals, } if (bestElem != availElems.end() && - i->queryOutPath() != + i.queryOutPath() != bestElem->queryOutPath()) { printMsg(lvlInfo, format("upgrading ‘%1%’ to ‘%2%’") - % i->name % bestElem->name); + % i.name % bestElem->name); newElems.push_back(*bestElem); - } else newElems.push_back(*i); + } else newElems.push_back(i); } catch (Error & e) { - e.addPrefix(format("while trying to find an upgrade for ‘%1%’:\n") % i->name); + e.addPrefix(format("while trying to find an upgrade for ‘%1%’:\n") % i.name); throw; } } @@ -666,13 +666,13 @@ static void opSetFlag(Globals & globals, Strings opFlags, Strings opArgs) DrvInfos installedElems = queryInstalled(*globals.state, globals.profile); /* Update all matching derivations. */ - foreach (DrvInfos::iterator, i, installedElems) { - DrvName drvName(i->name); - foreach (DrvNames::iterator, j, selectors) - if (j->matches(drvName)) { - printMsg(lvlInfo, format("setting flag on ‘%1%’") % i->name); - j->hits++; - setMetaFlag(*globals.state, *i, flagName, flagValue); + for (auto & i : installedElems) { + DrvName drvName(i.name); + for (auto & j : selectors) + if (j.matches(drvName)) { + printMsg(lvlInfo, format("setting flag on ‘%1%’") % i.name); + j.hits++; + setMetaFlag(*globals.state, i, flagName, flagValue); break; } } @@ -732,20 +732,20 @@ static void uninstallDerivations(Globals & globals, Strings & selectors, DrvInfos installedElems = queryInstalled(*globals.state, profile); DrvInfos newElems; - foreach (DrvInfos::iterator, i, installedElems) { - DrvName drvName(i->name); + for (auto & i : installedElems) { + DrvName drvName(i.name); bool found = false; - foreach (Strings::iterator, j, selectors) + for (auto & j : selectors) /* !!! the repeated calls to followLinksToStorePath() are expensive, should pre-compute them. */ - if ((isPath(*j) && i->queryOutPath() == followLinksToStorePath(*j)) - || DrvName(*j).matches(drvName)) + if ((isPath(j) && i.queryOutPath() == followLinksToStorePath(j)) + || DrvName(j).matches(drvName)) { - printMsg(lvlInfo, format("uninstalling ‘%1%’") % i->name); + printMsg(lvlInfo, format("uninstalling ‘%1%’") % i.name); found = true; break; } - if (!found) newElems.push_back(*i); + if (!found) newElems.push_back(i); } if (globals.dryRun) return; @@ -788,18 +788,18 @@ void printTable(Table & table) vector widths; widths.resize(nrColumns); - foreach (Table::iterator, i, table) { - assert(i->size() == nrColumns); + for (auto & i : table) { + assert(i.size() == nrColumns); Strings::iterator j; unsigned int column; - for (j = i->begin(), column = 0; j != i->end(); ++j, ++column) + for (j = i.begin(), column = 0; j != i.end(); ++j, ++column) if (j->size() > widths[column]) widths[column] = j->size(); } - foreach (Table::iterator, i, table) { + for (auto & i : table) { Strings::iterator j; unsigned int column; - for (j = i->begin(), column = 0; j != i->end(); ++j, ++column) { + for (j = i.begin(), column = 0; j != i.end(); ++j, ++column) { string s = *j; replace(s.begin(), s.end(), '\n', ' '); cout << s; @@ -828,8 +828,8 @@ static VersionDiff compareVersionAgainstSet( VersionDiff diff = cvUnavail; version = "?"; - for (DrvInfos::const_iterator i = elems.begin(); i != elems.end(); ++i) { - DrvName name2(i->name); + for (auto & i : elems) { + DrvName name2(i.name); if (name.name == name2.name) { int d = compareVersions(name.version, name2.version); if (d < 0) { @@ -855,21 +855,21 @@ static VersionDiff compareVersionAgainstSet( static void queryJSON(Globals & globals, vector & elems) { JSONObject topObj(cout); - foreach (vector::iterator, i, elems) { - topObj.attr(i->attrPath); + for (auto & i : elems) { + topObj.attr(i.attrPath); JSONObject pkgObj(cout); - pkgObj.attr("name", i->name); - pkgObj.attr("system", i->system); + pkgObj.attr("name", i.name); + pkgObj.attr("system", i.system); pkgObj.attr("meta"); JSONObject metaObj(cout); - StringSet metaNames = i->queryMetaNames(); - foreach (StringSet::iterator, j, metaNames) { - metaObj.attr(*j); - Value * v = i->queryMeta(*j); + StringSet metaNames = i.queryMetaNames(); + for (auto & j : metaNames) { + metaObj.attr(j); + Value * v = i.queryMeta(j); if (!v) { - printMsg(lvlError, format("derivation ‘%1%’ has invalid meta attribute ‘%2%’") % i->name % *j); + printMsg(lvlError, format("derivation ‘%1%’ has invalid meta attribute ‘%2%’") % i.name % j); cout << "null"; } else { PathSet context; @@ -944,8 +944,7 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs) /* Sort them by name. */ /* !!! */ vector elems; - for (DrvInfos::iterator i = elems_.begin(); i != elems_.end(); ++i) - elems.push_back(*i); + for (auto & i : elems_) elems.push_back(i); sort(elems.begin(), elems.end(), cmpElemByName); @@ -954,9 +953,8 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs) PathSet installed; /* installed paths */ if (printStatus) { - for (DrvInfos::iterator i = installedElems.begin(); - i != installedElems.end(); ++i) - installed.insert(i->queryOutPath()); + for (auto & i : installedElems) + installed.insert(i.queryOutPath()); } @@ -964,12 +962,12 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs) PathSet validPaths, substitutablePaths; if (printStatus || globals.prebuiltOnly) { PathSet paths; - foreach (vector::iterator, i, elems) + for (auto & i : elems) try { - paths.insert(i->queryOutPath()); + paths.insert(i.queryOutPath()); } catch (AssertionError & e) { - printMsg(lvlTalkative, format("skipping derivation named ‘%1%’ which gives an assertion failure") % i->name); - i->setFailed(); + printMsg(lvlTalkative, format("skipping derivation named ‘%1%’ which gives an assertion failure") % i.name); + i.setFailed(); } validPaths = store->queryValidPaths(paths); substitutablePaths = store->querySubstitutablePaths(paths); @@ -990,15 +988,15 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs) XMLWriter xml(true, *(xmlOutput ? &cout : &dummy)); XMLOpenElement xmlRoot(xml, "items"); - foreach (vector::iterator, i, elems) { + for (auto & i : elems) { try { - if (i->hasFailed()) continue; + if (i.hasFailed()) continue; - startNest(nest, lvlDebug, format("outputting query result ‘%1%’") % i->attrPath); + startNest(nest, lvlDebug, format("outputting query result ‘%1%’") % i.attrPath); if (globals.prebuiltOnly && - validPaths.find(i->queryOutPath()) == validPaths.end() && - substitutablePaths.find(i->queryOutPath()) == substitutablePaths.end()) + validPaths.find(i.queryOutPath()) == validPaths.end() && + substitutablePaths.find(i.queryOutPath()) == substitutablePaths.end()) continue; /* For table output. */ @@ -1008,7 +1006,7 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs) XMLAttrs attrs; if (printStatus) { - Path outPath = i->queryOutPath(); + Path outPath = i.queryOutPath(); bool hasSubs = substitutablePaths.find(outPath) != substitutablePaths.end(); bool isInstalled = installed.find(outPath) != installed.end(); bool isValid = validPaths.find(outPath) != validPaths.end(); @@ -1024,14 +1022,14 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs) } if (xmlOutput) - attrs["attrPath"] = i->attrPath; + attrs["attrPath"] = i.attrPath; else if (printAttrPath) - columns.push_back(i->attrPath); + columns.push_back(i.attrPath); if (xmlOutput) - attrs["name"] = i->name; + attrs["name"] = i.name; else if (printName) - columns.push_back(i->name); + columns.push_back(i.name); if (compareVersions) { /* Compare this element against the versions of the @@ -1039,7 +1037,7 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs) elements, or the set of installed elements. !!! This is O(N * M), should be O(N * lg M). */ string version; - VersionDiff diff = compareVersionAgainstSet(*i, otherElems, version); + VersionDiff diff = compareVersionAgainstSet(i, otherElems, version); char ch; switch (diff) { @@ -1064,13 +1062,13 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs) } if (xmlOutput) { - if (i->system != "") attrs["system"] = i->system; + if (i.system != "") attrs["system"] = i.system; } else if (printSystem) - columns.push_back(i->system); + columns.push_back(i.system); if (printDrvPath) { - string drvPath = i->queryDrvPath(); + string drvPath = i.queryDrvPath(); if (xmlOutput) { if (drvPath != "") attrs["drvPath"] = drvPath; } else @@ -1078,18 +1076,18 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs) } if (printOutPath && !xmlOutput) { - DrvInfo::Outputs outputs = i->queryOutputs(); + DrvInfo::Outputs outputs = i.queryOutputs(); string s; - foreach (DrvInfo::Outputs::iterator, j, outputs) { + for (auto & j : outputs) { if (!s.empty()) s += ';'; - if (j->first != "out") { s += j->first; s += "="; } - s += j->second; + if (j.first != "out") { s += j.first; s += "="; } + s += j.second; } columns.push_back(s); } if (printDescription) { - string descr = i->queryMetaString("description"); + string descr = i.queryMetaString("description"); if (xmlOutput) { if (descr != "") attrs["description"] = descr; } else @@ -1100,22 +1098,22 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs) if (printOutPath || printMeta) { XMLOpenElement item(xml, "item", attrs); if (printOutPath) { - DrvInfo::Outputs outputs = i->queryOutputs(); - foreach (DrvInfo::Outputs::iterator, j, outputs) { + DrvInfo::Outputs outputs = i.queryOutputs(); + for (auto & j : outputs) { XMLAttrs attrs2; - attrs2["name"] = j->first; - attrs2["path"] = j->second; + attrs2["name"] = j.first; + attrs2["path"] = j.second; xml.writeEmptyElement("output", attrs2); } } if (printMeta) { - StringSet metaNames = i->queryMetaNames(); - foreach (StringSet::iterator, j, metaNames) { + StringSet metaNames = i.queryMetaNames(); + for (auto & j : metaNames) { XMLAttrs attrs2; - attrs2["name"] = *j; - Value * v = i->queryMeta(*j); + attrs2["name"] = j; + Value * v = i.queryMeta(j); if (!v) - printMsg(lvlError, format("derivation ‘%1%’ has invalid meta attribute ‘%2%’") % i->name % *j); + printMsg(lvlError, format("derivation ‘%1%’ has invalid meta attribute ‘%2%’") % i.name % j); else { if (v->type == tString) { attrs2["type"] = "string"; @@ -1150,9 +1148,9 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs) cout.flush(); } catch (AssertionError & e) { - printMsg(lvlTalkative, format("skipping derivation named ‘%1%’ which gives an assertion failure") % i->name); + printMsg(lvlTalkative, format("skipping derivation named ‘%1%’ which gives an assertion failure") % i.name); } catch (Error & e) { - e.addPrefix(format("while querying the derivation named ‘%1%’:\n") % i->name); + e.addPrefix(format("while querying the derivation named ‘%1%’:\n") % i.name); throw; } } @@ -1187,10 +1185,10 @@ static void switchGeneration(Globals & globals, int dstGen) Generations gens = findGenerations(globals.profile, curGen); Generation dst; - for (Generations::iterator i = gens.begin(); i != gens.end(); ++i) - if ((dstGen == prevGen && i->number < curGen) || - (dstGen >= 0 && i->number == dstGen)) - dst = *i; + for (auto & i : gens) + if ((dstGen == prevGen && i.number < curGen) || + (dstGen >= 0 && i.number == dstGen)) + dst = i; if (!dst) { if (dstGen == prevGen) @@ -1250,14 +1248,14 @@ static void opListGenerations(Globals & globals, Strings opFlags, Strings opArgs RunPager pager; - for (Generations::iterator i = gens.begin(); i != gens.end(); ++i) { + for (auto & i : gens) { tm t; - if (!localtime_r(&i->creationTime, &t)) throw Error("cannot convert time"); + if (!localtime_r(&i.creationTime, &t)) throw Error("cannot convert time"); cout << format("%|4| %|4|-%|02|-%|02| %|02|:%|02|:%|02| %||\n") - % i->number + % i.number % (t.tm_year + 1900) % (t.tm_mon + 1) % t.tm_mday % t.tm_hour % t.tm_min % t.tm_sec - % (i->number == curGen ? "(current)" : ""); + % (i.number == curGen ? "(current)" : ""); } } diff --git a/src/nix-env/user-env.cc b/src/nix-env/user-env.cc index 3bc31b9ea..35b1628e3 100644 --- a/src/nix-env/user-env.cc +++ b/src/nix-env/user-env.cc @@ -33,9 +33,9 @@ bool createUserEnv(EvalState & state, DrvInfos & elems, /* Build the components in the user environment, if they don't exist already. */ PathSet drvsToBuild; - foreach (DrvInfos::iterator, i, elems) - if (i->queryDrvPath() != "") - drvsToBuild.insert(i->queryDrvPath()); + for (auto & i : elems) + if (i.queryDrvPath() != "") + drvsToBuild.insert(i.queryDrvPath()); debug(format("building user environment dependencies")); store->buildPaths(drvsToBuild, state.repair ? bmRepair : bmNormal); @@ -45,51 +45,51 @@ bool createUserEnv(EvalState & state, DrvInfos & elems, Value manifest; state.mkList(manifest, elems.size()); unsigned int n = 0; - foreach (DrvInfos::iterator, i, elems) { + for (auto & i : elems) { /* Create a pseudo-derivation containing the name, system, output paths, and optionally the derivation path, as well as the meta attributes. */ - Path drvPath = keepDerivations ? i->queryDrvPath() : ""; + Path drvPath = keepDerivations ? i.queryDrvPath() : ""; Value & v(*state.allocValue()); manifest.list.elems[n++] = &v; state.mkAttrs(v, 16); mkString(*state.allocAttr(v, state.sType), "derivation"); - mkString(*state.allocAttr(v, state.sName), i->name); - if (!i->system.empty()) - mkString(*state.allocAttr(v, state.sSystem), i->system); - mkString(*state.allocAttr(v, state.sOutPath), i->queryOutPath()); + mkString(*state.allocAttr(v, state.sName), i.name); + if (!i.system.empty()) + mkString(*state.allocAttr(v, state.sSystem), i.system); + mkString(*state.allocAttr(v, state.sOutPath), i.queryOutPath()); if (drvPath != "") - mkString(*state.allocAttr(v, state.sDrvPath), i->queryDrvPath()); + mkString(*state.allocAttr(v, state.sDrvPath), i.queryDrvPath()); // Copy each output. - DrvInfo::Outputs outputs = i->queryOutputs(); + DrvInfo::Outputs outputs = i.queryOutputs(); Value & vOutputs = *state.allocAttr(v, state.sOutputs); state.mkList(vOutputs, outputs.size()); unsigned int m = 0; - foreach (DrvInfo::Outputs::iterator, j, outputs) { - mkString(*(vOutputs.list.elems[m++] = state.allocValue()), j->first); - Value & vOutputs = *state.allocAttr(v, state.symbols.create(j->first)); + for (auto & j : outputs) { + mkString(*(vOutputs.list.elems[m++] = state.allocValue()), j.first); + Value & vOutputs = *state.allocAttr(v, state.symbols.create(j.first)); state.mkAttrs(vOutputs, 2); - mkString(*state.allocAttr(vOutputs, state.sOutPath), j->second); + mkString(*state.allocAttr(vOutputs, state.sOutPath), j.second); /* This is only necessary when installing store paths, e.g., `nix-env -i /nix/store/abcd...-foo'. */ - store->addTempRoot(j->second); - store->ensurePath(j->second); + store->addTempRoot(j.second); + store->ensurePath(j.second); - references.insert(j->second); + references.insert(j.second); } // Copy the meta attributes. Value & vMeta = *state.allocAttr(v, state.sMeta); state.mkAttrs(vMeta, 16); - StringSet metaNames = i->queryMetaNames(); - foreach (StringSet::iterator, j, metaNames) { - Value * v = i->queryMeta(*j); + StringSet metaNames = i.queryMetaNames(); + for (auto & j : metaNames) { + Value * v = i.queryMeta(j); if (!v) continue; - vMeta.attrs->push_back(Attr(state.symbols.create(*j), v)); + vMeta.attrs->push_back(Attr(state.symbols.create(j), v)); } vMeta.attrs->sort(); v.attrs->sort(); diff --git a/src/nix-instantiate/nix-instantiate.cc b/src/nix-instantiate/nix-instantiate.cc index bea04180e..b6845197e 100644 --- a/src/nix-instantiate/nix-instantiate.cc +++ b/src/nix-instantiate/nix-instantiate.cc @@ -45,8 +45,8 @@ void processExpr(EvalState & state, const Strings & attrPaths, Value vRoot; state.eval(e, vRoot); - foreach (Strings::const_iterator, i, attrPaths) { - Value & v(*findAlongAttrPath(state, *i, autoArgs, vRoot)); + for (auto & i : attrPaths) { + Value & v(*findAlongAttrPath(state, i, autoArgs, vRoot)); state.forceValue(v); PathSet context; @@ -67,11 +67,11 @@ void processExpr(EvalState & state, const Strings & attrPaths, } else { DrvInfos drvs; getDerivations(state, v, "", autoArgs, drvs, false); - foreach (DrvInfos::iterator, i, drvs) { - Path drvPath = i->queryDrvPath(); + for (auto & i : drvs) { + Path drvPath = i.queryDrvPath(); /* What output do we want? */ - string outputName = i->queryOutputName(); + string outputName = i.queryOutputName(); if (outputName == "") throw Error(format("derivation ‘%1%’ lacks an ‘outputName’ attribute ") % drvPath); @@ -168,9 +168,9 @@ int main(int argc, char * * argv) if (attrPaths.empty()) attrPaths.push_back(""); if (findFile) { - foreach (Strings::iterator, i, files) { - Path p = state.findFile(*i); - if (p == "") throw Error(format("unable to find ‘%1%’") % *i); + for (auto & i : files) { + Path p = state.findFile(i); + if (p == "") throw Error(format("unable to find ‘%1%’") % i); std::cout << p << std::endl; } return; diff --git a/src/nix-store/nix-store.cc b/src/nix-store/nix-store.cc index 434aefba4..2d2437c75 100644 --- a/src/nix-store/nix-store.cc +++ b/src/nix-store/nix-store.cc @@ -69,13 +69,13 @@ static PathSet realisePath(Path path, bool build = true) rootNr++; if (p.second.empty()) - foreach (DerivationOutputs::iterator, i, drv.outputs) p.second.insert(i->first); + for (auto & i : drv.outputs) p.second.insert(i.first); PathSet outputs; - foreach (StringSet::iterator, j, p.second) { - DerivationOutputs::iterator i = drv.outputs.find(*j); + for (auto & j : p.second) { + DerivationOutputs::iterator i = drv.outputs.find(j); if (i == drv.outputs.end()) - throw Error(format("derivation ‘%1%’ does not have an output named ‘%2%’") % p.first % *j); + throw Error(format("derivation ‘%1%’ does not have an output named ‘%2%’") % p.first % j); Path outPath = i->second.path; if (gcRoot == "") printGCWarning(); @@ -113,16 +113,16 @@ static void opRealise(Strings opFlags, Strings opArgs) BuildMode buildMode = bmNormal; bool ignoreUnknown = false; - foreach (Strings::iterator, i, opFlags) - if (*i == "--dry-run") dryRun = true; - else if (*i == "--repair") buildMode = bmRepair; - else if (*i == "--check") buildMode = bmCheck; - else if (*i == "--ignore-unknown") ignoreUnknown = true; - else throw UsageError(format("unknown flag ‘%1%’") % *i); + for (auto & i : opFlags) + if (i == "--dry-run") dryRun = true; + else if (i == "--repair") buildMode = bmRepair; + else if (i == "--check") buildMode = bmCheck; + else if (i == "--ignore-unknown") ignoreUnknown = true; + else throw UsageError(format("unknown flag ‘%1%’") % i); Paths paths; - foreach (Strings::iterator, i, opArgs) { - DrvPathWithOutputs p = parseDrvPathWithOutputs(*i); + for (auto & i : opArgs) { + DrvPathWithOutputs p = parseDrvPathWithOutputs(i); paths.push_back(makeDrvPathWithOutputs(followLinksToStorePath(p.first), p.second)); } @@ -133,8 +133,8 @@ static void opRealise(Strings opFlags, Strings opArgs) if (ignoreUnknown) { Paths paths2; - foreach (Paths::iterator, i, paths) - if (unknown.find(*i) == unknown.end()) paths2.push_back(*i); + for (auto & i : paths) + if (unknown.find(i) == unknown.end()) paths2.push_back(i); paths = paths2; unknown = PathSet(); } @@ -148,11 +148,11 @@ static void opRealise(Strings opFlags, Strings opArgs) store->buildPaths(PathSet(paths.begin(), paths.end()), buildMode); if (!ignoreUnknown) - foreach (Paths::iterator, i, paths) { - PathSet paths = realisePath(*i, false); + for (auto & i : paths) { + PathSet paths = realisePath(i, false); if (!noOutput) - foreach (PathSet::iterator, j, paths) - cout << format("%1%\n") % *j; + for (auto & j : paths) + cout << format("%1%\n") % j; } } @@ -173,10 +173,9 @@ static void opAddFixed(Strings opFlags, Strings opArgs) { bool recursive = false; - for (Strings::iterator i = opFlags.begin(); - i != opFlags.end(); ++i) - if (*i == "--recursive") recursive = true; - else throw UsageError(format("unknown flag ‘%1%’") % *i); + for (auto & i : opFlags) + if (i == "--recursive") recursive = true; + else throw UsageError(format("unknown flag ‘%1%’") % i); if (opArgs.empty()) throw UsageError("first argument must be hash algorithm"); @@ -194,10 +193,9 @@ static void opPrintFixedPath(Strings opFlags, Strings opArgs) { bool recursive = false; - for (Strings::iterator i = opFlags.begin(); - i != opFlags.end(); ++i) - if (*i == "--recursive") recursive = true; - else throw UsageError(format("unknown flag ‘%1%’") % *i); + for (auto i : opFlags) + if (i == "--recursive") recursive = true; + else throw UsageError(format("unknown flag ‘%1%’") % i); if (opArgs.size() != 3) throw UsageError(format("‘--print-fixed-path’ requires three arguments")); @@ -219,8 +217,8 @@ static PathSet maybeUseOutputs(const Path & storePath, bool useOutput, bool forc if (useOutput && isDerivation(storePath)) { Derivation drv = derivationFromPath(*store, storePath); PathSet outputs; - foreach (DerivationOutputs::iterator, i, drv.outputs) - outputs.insert(i->second.path); + for (auto & i : drv.outputs) + outputs.insert(i.second.path); return outputs; } else return singleton(storePath); @@ -257,8 +255,8 @@ static void printTree(const Path & path, Paths sorted = topoSortPaths(*store, references); reverse(sorted.begin(), sorted.end()); - foreach (Paths::iterator, i, sorted) { - Paths::iterator j = i; ++j; + for (auto i = sorted.begin(); i != sorted.end(); ++i) { + auto j = i; ++j; printTree(*i, tailPad + treeConn, j == sorted.end() ? tailPad + treeNull : tailPad + treeLine, done); @@ -279,34 +277,34 @@ static void opQuery(Strings opFlags, Strings opArgs) bool forceRealise = false; string bindingName; - foreach (Strings::iterator, i, opFlags) { + for (auto & i : opFlags) { QueryType prev = query; - if (*i == "--outputs") query = qOutputs; - else if (*i == "--requisites" || *i == "-R") query = qRequisites; - else if (*i == "--references") query = qReferences; - else if (*i == "--referrers" || *i == "--referers") query = qReferrers; - else if (*i == "--referrers-closure" || *i == "--referers-closure") query = qReferrersClosure; - else if (*i == "--deriver" || *i == "-d") query = qDeriver; - else if (*i == "--binding" || *i == "-b") { + if (i == "--outputs") query = qOutputs; + else if (i == "--requisites" || i == "-R") query = qRequisites; + else if (i == "--references") query = qReferences; + else if (i == "--referrers" || i == "--referers") query = qReferrers; + else if (i == "--referrers-closure" || i == "--referers-closure") query = qReferrersClosure; + else if (i == "--deriver" || i == "-d") query = qDeriver; + else if (i == "--binding" || i == "-b") { if (opArgs.size() == 0) throw UsageError("expected binding name"); bindingName = opArgs.front(); opArgs.pop_front(); query = qBinding; } - else if (*i == "--hash") query = qHash; - else if (*i == "--size") query = qSize; - else if (*i == "--tree") query = qTree; - else if (*i == "--graph") query = qGraph; - else if (*i == "--xml") query = qXml; - else if (*i == "--resolve") query = qResolve; - else if (*i == "--roots") query = qRoots; - else if (*i == "--use-output" || *i == "-u") useOutput = true; - else if (*i == "--force-realise" || *i == "--force-realize" || *i == "-f") forceRealise = true; - else if (*i == "--include-outputs") includeOutputs = true; - else throw UsageError(format("unknown flag ‘%1%’") % *i); + else if (i == "--hash") query = qHash; + else if (i == "--size") query = qSize; + else if (i == "--tree") query = qTree; + else if (i == "--graph") query = qGraph; + else if (i == "--xml") query = qXml; + else if (i == "--resolve") query = qResolve; + else if (i == "--roots") query = qRoots; + else if (i == "--use-output" || i == "-u") useOutput = true; + else if (i == "--force-realise" || i == "--force-realize" || i == "-f") forceRealise = true; + else if (i == "--include-outputs") includeOutputs = true; + else throw UsageError(format("unknown flag ‘%1%’") % i); if (prev != qDefault && prev != query) - throw UsageError(format("query type ‘%1%’ conflicts with earlier flag") % *i); + throw UsageError(format("query type ‘%1%’ conflicts with earlier flag") % i); } if (query == qDefault) query = qOutputs; @@ -316,12 +314,12 @@ static void opQuery(Strings opFlags, Strings opArgs) switch (query) { case qOutputs: { - foreach (Strings::iterator, i, opArgs) { - *i = followLinksToStorePath(*i); - if (forceRealise) realisePath(*i); - Derivation drv = derivationFromPath(*store, *i); - foreach (DerivationOutputs::iterator, j, drv.outputs) - cout << format("%1%\n") % j->second.path; + for (auto & i : opArgs) { + i = followLinksToStorePath(i); + if (forceRealise) realisePath(i); + Derivation drv = derivationFromPath(*store, i); + for (auto & j : drv.outputs) + cout << format("%1%\n") % j.second.path; } break; } @@ -331,13 +329,13 @@ static void opQuery(Strings opFlags, Strings opArgs) case qReferrers: case qReferrersClosure: { PathSet paths; - foreach (Strings::iterator, i, opArgs) { - PathSet ps = maybeUseOutputs(followLinksToStorePath(*i), useOutput, forceRealise); - foreach (PathSet::iterator, j, ps) { - if (query == qRequisites) computeFSClosure(*store, *j, paths, false, includeOutputs); - else if (query == qReferences) store->queryReferences(*j, paths); - else if (query == qReferrers) store->queryReferrers(*j, paths); - else if (query == qReferrersClosure) computeFSClosure(*store, *j, paths, true); + for (auto & i : opArgs) { + PathSet ps = maybeUseOutputs(followLinksToStorePath(i), useOutput, forceRealise); + for (auto & j : ps) { + if (query == qRequisites) computeFSClosure(*store, j, paths, false, includeOutputs); + else if (query == qReferences) store->queryReferences(j, paths); + else if (query == qReferrers) store->queryReferrers(j, paths); + else if (query == qReferrersClosure) computeFSClosure(*store, j, paths, true); } } Paths sorted = topoSortPaths(*store, paths); @@ -348,16 +346,16 @@ static void opQuery(Strings opFlags, Strings opArgs) } case qDeriver: - foreach (Strings::iterator, i, opArgs) { - Path deriver = store->queryDeriver(followLinksToStorePath(*i)); + for (auto & i : opArgs) { + Path deriver = store->queryDeriver(followLinksToStorePath(i)); cout << format("%1%\n") % (deriver == "" ? "unknown-deriver" : deriver); } break; case qBinding: - foreach (Strings::iterator, i, opArgs) { - Path path = useDeriver(followLinksToStorePath(*i)); + for (auto & i : opArgs) { + Path path = useDeriver(followLinksToStorePath(i)); Derivation drv = derivationFromPath(*store, path); StringPairs::iterator j = drv.env.find(bindingName); if (j == drv.env.end()) @@ -369,10 +367,10 @@ static void opQuery(Strings opFlags, Strings opArgs) case qHash: case qSize: - foreach (Strings::iterator, i, opArgs) { - PathSet paths = maybeUseOutputs(followLinksToStorePath(*i), useOutput, forceRealise); - foreach (PathSet::iterator, j, paths) { - ValidPathInfo info = store->queryPathInfo(*j); + for (auto & i : opArgs) { + PathSet paths = maybeUseOutputs(followLinksToStorePath(i), useOutput, forceRealise); + for (auto & j : paths) { + ValidPathInfo info = store->queryPathInfo(j); if (query == qHash) { assert(info.hash.type == htSHA256); cout << format("sha256:%1%\n") % printHash32(info.hash); @@ -384,15 +382,15 @@ static void opQuery(Strings opFlags, Strings opArgs) case qTree: { PathSet done; - foreach (Strings::iterator, i, opArgs) - printTree(followLinksToStorePath(*i), "", "", done); + for (auto & i : opArgs) + printTree(followLinksToStorePath(i), "", "", done); break; } case qGraph: { PathSet roots; - foreach (Strings::iterator, i, opArgs) { - PathSet paths = maybeUseOutputs(followLinksToStorePath(*i), useOutput, forceRealise); + for (auto & i : opArgs) { + PathSet paths = maybeUseOutputs(followLinksToStorePath(i), useOutput, forceRealise); roots.insert(paths.begin(), paths.end()); } printDotGraph(roots); @@ -401,8 +399,8 @@ static void opQuery(Strings opFlags, Strings opArgs) case qXml: { PathSet roots; - foreach (Strings::iterator, i, opArgs) { - PathSet paths = maybeUseOutputs(followLinksToStorePath(*i), useOutput, forceRealise); + for (auto & i : opArgs) { + PathSet paths = maybeUseOutputs(followLinksToStorePath(i), useOutput, forceRealise); roots.insert(paths.begin(), paths.end()); } printXmlGraph(roots); @@ -410,23 +408,23 @@ static void opQuery(Strings opFlags, Strings opArgs) } case qResolve: { - foreach (Strings::iterator, i, opArgs) - cout << format("%1%\n") % followLinksToStorePath(*i); + for (auto & i : opArgs) + cout << format("%1%\n") % followLinksToStorePath(i); break; } case qRoots: { PathSet referrers; - foreach (Strings::iterator, i, opArgs) { - PathSet paths = maybeUseOutputs(followLinksToStorePath(*i), useOutput, forceRealise); - foreach (PathSet::iterator, j, paths) - computeFSClosure(*store, *j, referrers, true, + for (auto & i : opArgs) { + PathSet paths = maybeUseOutputs(followLinksToStorePath(i), useOutput, forceRealise); + for (auto & j : paths) + computeFSClosure(*store, j, referrers, true, settings.gcKeepOutputs, settings.gcKeepDerivations); } Roots roots = store->findRoots(); - foreach (Roots::iterator, i, roots) - if (referrers.find(i->second) != referrers.end()) - cout << format("%1%\n") % i->first; + for (auto & i : roots) + if (referrers.find(i.second) != referrers.end()) + cout << format("%1%\n") % i.first; break; } @@ -439,8 +437,8 @@ static void opQuery(Strings opFlags, Strings opArgs) static string shellEscape(const string & s) { string r; - foreach (string::const_iterator, i, s) - if (*i == '\'') r += "'\\''"; else r += *i; + for (auto & i : s) + if (i == '\'') r += "'\\''"; else r += i; return r; } @@ -455,15 +453,17 @@ static void opPrintEnv(Strings opFlags, Strings opArgs) /* Print each environment variable in the derivation in a format that can be sourced by the shell. */ - foreach (StringPairs::iterator, i, drv.env) - cout << format("export %1%; %1%='%2%'\n") % i->first % shellEscape(i->second); + for (auto & i : drv.env) + cout << format("export %1%; %1%='%2%'\n") % i.first % shellEscape(i.second); /* Also output the arguments. This doesn't preserve whitespace in arguments. */ cout << "export _args; _args='"; - foreach (Strings::iterator, i, drv.args) { - if (i != drv.args.begin()) cout << ' '; - cout << shellEscape(*i); + bool first = true; + for (auto & i : drv.args) { + if (!first) cout << ' '; + first = false; + cout << shellEscape(i); } cout << "'\n"; } @@ -475,8 +475,8 @@ static void opReadLog(Strings opFlags, Strings opArgs) RunPager pager; - foreach (Strings::iterator, i, opArgs) { - Path path = useDeriver(followLinksToStorePath(*i)); + for (auto & i : opArgs) { + Path path = useDeriver(followLinksToStorePath(i)); string baseName = baseNameOf(path); bool found = false; @@ -547,8 +547,8 @@ static void opDumpDB(Strings opFlags, Strings opArgs) if (!opArgs.empty()) throw UsageError("no arguments expected"); PathSet validPaths = store->queryAllValidPaths(); - foreach (PathSet::iterator, i, validPaths) - cout << store->makeValidityRegistration(singleton(*i), true, true); + for (auto & i : validPaths) + cout << store->makeValidityRegistration(singleton(i), true, true); } @@ -590,11 +590,10 @@ static void opRegisterValidity(Strings opFlags, Strings opArgs) bool reregister = false; // !!! maybe this should be the default bool hashGiven = false; - for (Strings::iterator i = opFlags.begin(); - i != opFlags.end(); ++i) - if (*i == "--reregister") reregister = true; - else if (*i == "--hash-given") hashGiven = true; - else throw UsageError(format("unknown flag ‘%1%’") % *i); + for (auto & i : opFlags) + if (i == "--reregister") reregister = true; + else if (i == "--hash-given") hashGiven = true; + else throw UsageError(format("unknown flag ‘%1%’") % i); if (!opArgs.empty()) throw UsageError("no arguments expected"); @@ -606,15 +605,12 @@ static void opCheckValidity(Strings opFlags, Strings opArgs) { bool printInvalid = false; - for (Strings::iterator i = opFlags.begin(); - i != opFlags.end(); ++i) - if (*i == "--print-invalid") printInvalid = true; - else throw UsageError(format("unknown flag ‘%1%’") % *i); + for (auto & i : opFlags) + if (i == "--print-invalid") printInvalid = true; + else throw UsageError(format("unknown flag ‘%1%’") % i); - for (Strings::iterator i = opArgs.begin(); - i != opArgs.end(); ++i) - { - Path path = followLinksToStorePath(*i); + for (auto & i : opArgs) { + Path path = followLinksToStorePath(i); if (!store->isValidPath(path)) { if (printInvalid) cout << format("%1%\n") % path; @@ -634,7 +630,7 @@ static void opGC(Strings opFlags, Strings opArgs) GCResults results; /* Do what? */ - foreach (Strings::iterator, i, opFlags) + for (auto i = opFlags.begin(); i != opFlags.end(); ++i) if (*i == "--print-roots") printRoots = true; else if (*i == "--print-live") options.action = GCOptions::gcReturnLive; else if (*i == "--print-dead") options.action = GCOptions::gcReturnDead; @@ -649,8 +645,8 @@ static void opGC(Strings opFlags, Strings opArgs) if (printRoots) { Roots roots = store->findRoots(); - foreach (Roots::iterator, i, roots) - cout << i->first << " -> " << i->second << std::endl; + for (auto & i : roots) + cout << i.first << " -> " << i.second << std::endl; } else { @@ -658,8 +654,8 @@ static void opGC(Strings opFlags, Strings opArgs) store->collectGarbage(options, results); if (options.action != GCOptions::gcDeleteDead) - foreach (PathSet::iterator, i, results.paths) - cout << *i << std::endl; + for (auto & i : results.paths) + cout << i << std::endl; } } @@ -672,12 +668,12 @@ static void opDelete(Strings opFlags, Strings opArgs) GCOptions options; options.action = GCOptions::gcDeleteSpecific; - foreach (Strings::iterator, i, opFlags) - if (*i == "--ignore-liveness") options.ignoreLiveness = true; - else throw UsageError(format("unknown flag ‘%1%’") % *i); + for (auto & i : opFlags) + if (i == "--ignore-liveness") options.ignoreLiveness = true; + else throw UsageError(format("unknown flag ‘%1%’") % i); - foreach (Strings::iterator, i, opArgs) - options.pathsToDelete.insert(followLinksToStorePath(*i)); + for (auto & i : opArgs) + options.pathsToDelete.insert(followLinksToStorePath(i)); GCResults results; PrintFreed freed(true, results); @@ -713,10 +709,9 @@ static void opRestore(Strings opFlags, Strings opArgs) static void opExport(Strings opFlags, Strings opArgs) { bool sign = false; - for (Strings::iterator i = opFlags.begin(); - i != opFlags.end(); ++i) - if (*i == "--sign") sign = true; - else throw UsageError(format("unknown flag ‘%1%’") % *i); + for (auto & i : opFlags) + if (i == "--sign") sign = true; + else throw UsageError(format("unknown flag ‘%1%’") % i); FdSink sink(STDOUT_FILENO); Paths sorted = topoSortPaths(*store, PathSet(opArgs.begin(), opArgs.end())); @@ -728,17 +723,17 @@ static void opExport(Strings opFlags, Strings opArgs) static void opImport(Strings opFlags, Strings opArgs) { bool requireSignature = false; - foreach (Strings::iterator, i, opFlags) - if (*i == "--require-signature") requireSignature = true; - else throw UsageError(format("unknown flag ‘%1%’") % *i); + for (auto & i : opFlags) + if (i == "--require-signature") requireSignature = true; + else throw UsageError(format("unknown flag ‘%1%’") % i); if (!opArgs.empty()) throw UsageError("no arguments expected"); FdSource source(STDIN_FILENO); Paths paths = store->importPaths(requireSignature, source); - foreach (Paths::iterator, i, paths) - cout << format("%1%\n") % *i << std::flush; + for (auto & i : paths) + cout << format("%1%\n") % i << std::flush; } @@ -762,11 +757,10 @@ static void opVerify(Strings opFlags, Strings opArgs) bool checkContents = false; bool repair = false; - for (Strings::iterator i = opFlags.begin(); - i != opFlags.end(); ++i) - if (*i == "--check-contents") checkContents = true; - else if (*i == "--repair") repair = true; - else throw UsageError(format("unknown flag ‘%1%’") % *i); + for (auto & i : opFlags) + if (i == "--check-contents") checkContents = true; + else if (i == "--repair") repair = true; + else throw UsageError(format("unknown flag ‘%1%’") % i); if (store->verifyStore(checkContents, repair)) { printMsg(lvlError, "warning: not all errors were fixed"); @@ -783,8 +777,8 @@ static void opVerifyPath(Strings opFlags, Strings opArgs) int status = 0; - foreach (Strings::iterator, i, opArgs) { - Path path = followLinksToStorePath(*i); + for (auto & i : opArgs) { + Path path = followLinksToStorePath(i); printMsg(lvlTalkative, format("checking path ‘%1%’...") % path); ValidPathInfo info = store->queryPathInfo(path); HashResult current = hashPath(info.hash.type, path); @@ -807,8 +801,8 @@ static void opRepairPath(Strings opFlags, Strings opArgs) if (!opFlags.empty()) throw UsageError("no flags expected"); - foreach (Strings::iterator, i, opArgs) { - Path path = followLinksToStorePath(*i); + for (auto & i : opArgs) { + Path path = followLinksToStorePath(i); ensureLocalStore().repairPath(path); } } @@ -828,8 +822,8 @@ static void opQueryFailedPaths(Strings opFlags, Strings opArgs) if (!opArgs.empty() || !opFlags.empty()) throw UsageError("no arguments expected"); PathSet failed = store->queryFailedPaths(); - foreach (PathSet::iterator, i, failed) - cout << format("%1%\n") % *i; + for (auto & i : failed) + cout << format("%1%\n") % i; } @@ -845,9 +839,9 @@ static void opClearFailedPaths(Strings opFlags, Strings opArgs) static void opServe(Strings opFlags, Strings opArgs) { bool writeAllowed = false; - foreach (Strings::iterator, i, opFlags) - if (*i == "--write") writeAllowed = true; - else throw UsageError(format("unknown flag ‘%1%’") % *i); + for (auto & i : opFlags) + if (i == "--write") writeAllowed = true; + else throw UsageError(format("unknown flag ‘%1%’") % i); if (!opArgs.empty()) throw UsageError("no arguments expected"); @@ -919,10 +913,10 @@ static void opServe(Strings opFlags, Strings opArgs) case cmdQueryPathInfos: { PathSet paths = readStorePaths(in); // !!! Maybe we want a queryPathInfos? - foreach (PathSet::iterator, i, paths) { - if (!store->isValidPath(*i)) + for (auto & i : paths) { + if (!store->isValidPath(i)) continue; - ValidPathInfo info = store->queryPathInfo(*i); + ValidPathInfo info = store->queryPathInfo(i); writeString(info.path, out); writeString(info.deriver, out); writeStrings(info.references, out); @@ -1012,8 +1006,8 @@ static void opServe(Strings opFlags, Strings opArgs) static void opGenerateBinaryCacheKey(Strings opFlags, Strings opArgs) { - foreach (Strings::iterator, i, opFlags) - throw UsageError(format("unknown flag ‘%1%’") % *i); + for (auto & i : opFlags) + throw UsageError(format("unknown flag ‘%1%’") % i); if (opArgs.size() != 3) throw UsageError("three arguments expected"); auto i = opArgs.begin();