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Merge remote-tracking branch 'upstream/master' into hash-always-has-type

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This commit is contained in:
John Ericson 2020-07-13 03:01:44 +00:00
parent dbffd309fe 8efa23bb99
commit 4415765385
40 changed files with 727 additions and 292 deletions
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1
.dir-locals.el
View file

@ -1,6 +1,7 @@
((c++-mode . ( ((c++-mode . (
(c-file-style . "k&r") (c-file-style . "k&r")
(c-basic-offset . 4) (c-basic-offset . 4)
(c-block-comment-prefix . " ")
(indent-tabs-mode . nil) (indent-tabs-mode . nil)
(tab-width . 4) (tab-width . 4)
(show-trailing-whitespace . t) (show-trailing-whitespace . t)

10
.github/workflows/test.yml vendored
View file

@ -12,3 +12,13 @@ jobs:
- uses: actions/checkout@v2 - uses: actions/checkout@v2
- uses: cachix/install-nix-action@v10 - uses: cachix/install-nix-action@v10
- run: nix-build release.nix --arg nix '{ outPath = ./.; revCount = 123; shortRev = "abcdefgh"; }' --arg systems '[ builtins.currentSystem ]' -A installerScript -A perlBindings - run: nix-build release.nix --arg nix '{ outPath = ./.; revCount = 123; shortRev = "abcdefgh"; }' --arg systems '[ builtins.currentSystem ]' -A installerScript -A perlBindings
macos_perf_test:
runs-on: macos-latest
steps:
- name: Disable syspolicy assessments
run: |
spctl --status
sudo spctl --master-disable
- uses: actions/checkout@v2
- uses: cachix/install-nix-action@v10
- run: nix-build release.nix --arg nix '{ outPath = ./.; revCount = 123; shortRev = "abcdefgh"; }' --arg systems '[ builtins.currentSystem ]' -A installerScript -A perlBindings

14
maintainers/upload-release.pl
View file

@ -170,15 +170,5 @@ $channelsBucket->add_key(
chdir("/home/eelco/Dev/nix-pristine") or die; chdir("/home/eelco/Dev/nix-pristine") or die;
system("git remote update origin") == 0 or die; system("git remote update origin") == 0 or die;
system("git tag --force --sign $version $nixRev -m 'Tagging release $version'") == 0 or die; system("git tag --force --sign $version $nixRev -m 'Tagging release $version'") == 0 or die;
system("git push --tags") == 0 or die;
# Update the website. system("git push --force-with-lease origin $nixRev:refs/heads/latest-release") == 0 or die;
my $siteDir = "/home/eelco/Dev/nixos-homepage-pristine";
system("cd $siteDir && git pull") == 0 or die;
write_file("$siteDir/nix-release.tt",
"[%-\n" .
"latestNixVersion = \"$version\"\n" .
"-%]\n");
system("cd $siteDir && git commit -a -m 'Nix $version released'") == 0 or die;

2
src/libexpr/attr-path.cc
View file

@ -130,7 +130,7 @@ Pos findDerivationFilename(EvalState & state, Value & v, std::string what)
Symbol file = state.symbols.create(filename); Symbol file = state.symbols.create(filename);
return { file, lineno, 0 }; return { foFile, file, lineno, 0 };
} }

2
src/libexpr/attr-set.hh
View file

@ -78,7 +78,7 @@ public:
if (!a) if (!a)
throw Error({ throw Error({
.hint = hintfmt("attribute '%s' missing", name), .hint = hintfmt("attribute '%s' missing", name),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
return *a; return *a;

4
src/libexpr/eval-inline.hh
View file

@ -11,7 +11,7 @@ LocalNoInlineNoReturn(void throwEvalError(const Pos & pos, const char * s))
{ {
throw EvalError({ throw EvalError({
.hint = hintfmt(s), .hint = hintfmt(s),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }
@ -25,7 +25,7 @@ LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const char * s, const
{ {
throw TypeError({ throw TypeError({
.hint = hintfmt(s, showType(v)), .hint = hintfmt(s, showType(v)),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }

45
src/libexpr/eval.cc
View file

@ -529,7 +529,7 @@ LocalNoInlineNoReturn(void throwEvalError(const Pos & pos, const char * s, const
{ {
throw EvalError({ throw EvalError({
.hint = hintfmt(s, s2), .hint = hintfmt(s, s2),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }
@ -542,7 +542,7 @@ LocalNoInlineNoReturn(void throwEvalError(const Pos & pos, const char * s, const
{ {
throw EvalError({ throw EvalError({
.hint = hintfmt(s, s2, s3), .hint = hintfmt(s, s2, s3),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }
@ -551,7 +551,7 @@ LocalNoInlineNoReturn(void throwEvalError(const Pos & p1, const char * s, const
// p1 is where the error occurred; p2 is a position mentioned in the message. // p1 is where the error occurred; p2 is a position mentioned in the message.
throw EvalError({ throw EvalError({
.hint = hintfmt(s, sym, p2), .hint = hintfmt(s, sym, p2),
.nixCode = NixCode { .errPos = p1 } .errPos = p1
}); });
} }
@ -559,7 +559,7 @@ LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const char * s))
{ {
throw TypeError({ throw TypeError({
.hint = hintfmt(s), .hint = hintfmt(s),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }
@ -572,7 +572,7 @@ LocalNoInlineNoReturn(void throwTypeError(const Pos & pos, const char * s, const
{ {
throw TypeError({ throw TypeError({
.hint = hintfmt(s, fun.showNamePos(), s2), .hint = hintfmt(s, fun.showNamePos(), s2),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }
@ -580,7 +580,7 @@ LocalNoInlineNoReturn(void throwAssertionError(const Pos & pos, const char * s,
{ {
throw AssertionError({ throw AssertionError({
.hint = hintfmt(s, s1), .hint = hintfmt(s, s1),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }
@ -588,23 +588,18 @@ LocalNoInlineNoReturn(void throwUndefinedVarError(const Pos & pos, const char *
{ {
throw UndefinedVarError({ throw UndefinedVarError({
.hint = hintfmt(s, s1), .hint = hintfmt(s, s1),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }
LocalNoInline(void addErrorPrefix(Error & e, const char * s, const string & s2)) LocalNoInline(void addErrorTrace(Error & e, const char * s, const string & s2))
{ {
e.addPrefix(format(s) % s2); e.addTrace(std::nullopt, s, s2);
} }
LocalNoInline(void addErrorPrefix(Error & e, const char * s, const ExprLambda & fun, const Pos & pos)) LocalNoInline(void addErrorTrace(Error & e, const Pos & pos, const char * s, const string & s2))
{ {
e.addPrefix(format(s) % fun.showNamePos() % pos); e.addTrace(pos, s, s2);
}
LocalNoInline(void addErrorPrefix(Error & e, const char * s, const string & s2, const Pos & pos))
{
e.addPrefix(format(s) % s2 % pos);
} }
@ -818,7 +813,7 @@ void EvalState::evalFile(const Path & path_, Value & v)
try { try {
eval(e, v); eval(e, v);
} catch (Error & e) { } catch (Error & e) {
addErrorPrefix(e, "while evaluating the file '%1%':\n", path2); addErrorTrace(e, "while evaluating the file '%1%':", path2);
throw; throw;
} }
@ -1068,8 +1063,8 @@ void ExprSelect::eval(EvalState & state, Env & env, Value & v)
} catch (Error & e) { } catch (Error & e) {
if (pos2 && pos2->file != state.sDerivationNix) if (pos2 && pos2->file != state.sDerivationNix)
addErrorPrefix(e, "while evaluating the attribute '%1%' at %2%:\n", addErrorTrace(e, *pos2, "while evaluating the attribute '%1%'",
showAttrPath(state, env, attrPath), *pos2); showAttrPath(state, env, attrPath));
throw; throw;
} }
@ -1237,11 +1232,15 @@ void EvalState::callFunction(Value & fun, Value & arg, Value & v, const Pos & po
/* Evaluate the body. This is conditional on showTrace, because /* Evaluate the body. This is conditional on showTrace, because
catching exceptions makes this function not tail-recursive. */ catching exceptions makes this function not tail-recursive. */
if (settings.showTrace) if (loggerSettings.showTrace.get())
try { try {
lambda.body->eval(*this, env2, v); lambda.body->eval(*this, env2, v);
} catch (Error & e) { } catch (Error & e) {
addErrorPrefix(e, "while evaluating %1%, called from %2%:\n", lambda, pos); addErrorTrace(e, lambda.pos, "while evaluating %s",
(lambda.name.set()
? "'" + (string) lambda.name + "'"
: "anonymous lambdaction"));
addErrorTrace(e, pos, "from call site%s", "");
throw; throw;
} }
else else
@ -1516,7 +1515,7 @@ void EvalState::forceValueDeep(Value & v)
try { try {
recurse(*i.value); recurse(*i.value);
} catch (Error & e) { } catch (Error & e) {
addErrorPrefix(e, "while evaluating the attribute '%1%' at %2%:\n", i.name, *i.pos); addErrorTrace(e, *i.pos, "while evaluating the attribute '%1%'", i.name);
throw; throw;
} }
} }
@ -1936,7 +1935,7 @@ string ExternalValueBase::coerceToString(const Pos & pos, PathSet & context, boo
{ {
throw TypeError({ throw TypeError({
.hint = hintfmt("cannot coerce %1% to a string", showType()), .hint = hintfmt("cannot coerce %1% to a string", showType()),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }

2
src/libexpr/eval.hh
View file

@ -250,7 +250,7 @@ private:
friend struct ExprAttrs; friend struct ExprAttrs;
friend struct ExprLet; friend struct ExprLet;
Expr * parse(const char * text, const Path & path, Expr * parse(const char * text, FileOrigin origin, const Path & path,
const Path & basePath, StaticEnv & staticEnv); const Path & basePath, StaticEnv & staticEnv);
public: public:

19
src/libexpr/nixexpr.cc
View file

@ -197,7 +197,22 @@ std::ostream & operator << (std::ostream & str, const Pos & pos)
if (!pos) if (!pos)
str << "undefined position"; str << "undefined position";
else else
str << (format(ANSI_BOLD "%1%" ANSI_NORMAL ":%2%:%3%") % (string) pos.file % pos.line % pos.column).str(); {
auto f = format(ANSI_BOLD "%1%" ANSI_NORMAL ":%2%:%3%");
switch (pos.origin) {
case foFile:
f % (string) pos.file;
break;
case foStdin:
case foString:
f % "(string)";
break;
default:
throw Error("unhandled Pos origin!");
}
str << (f % pos.line % pos.column).str();
}
return str; return str;
} }
@ -270,7 +285,7 @@ void ExprVar::bindVars(const StaticEnv & env)
if (withLevel == -1) if (withLevel == -1)
throw UndefinedVarError({ throw UndefinedVarError({
.hint = hintfmt("undefined variable '%1%'", name), .hint = hintfmt("undefined variable '%1%'", name),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
fromWith = true; fromWith = true;
this->level = withLevel; this->level = withLevel;

9
src/libexpr/nixexpr.hh
View file

@ -24,11 +24,12 @@ MakeError(RestrictedPathError, Error);
struct Pos struct Pos
{ {
FileOrigin origin;
Symbol file; Symbol file;
unsigned int line, column; unsigned int line, column;
Pos() : line(0), column(0) { }; Pos() : origin(foString), line(0), column(0) { };
Pos(const Symbol & file, unsigned int line, unsigned int column) Pos(FileOrigin origin, const Symbol & file, unsigned int line, unsigned int column)
: file(file), line(line), column(column) { }; : origin(origin), file(file), line(line), column(column) { };
operator bool() const operator bool() const
{ {
return line != 0; return line != 0;
@ -238,7 +239,7 @@ struct ExprLambda : Expr
if (!arg.empty() && formals && formals->argNames.find(arg) != formals->argNames.end()) if (!arg.empty() && formals && formals->argNames.find(arg) != formals->argNames.end())
throw ParseError({ throw ParseError({
.hint = hintfmt("duplicate formal function argument '%1%'", arg), .hint = hintfmt("duplicate formal function argument '%1%'", arg),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
}; };
void setName(Symbol & name); void setName(Symbol & name);

43
src/libexpr/parser.y
View file

@ -30,7 +30,8 @@ namespace nix {
SymbolTable & symbols; SymbolTable & symbols;
Expr * result; Expr * result;
Path basePath; Path basePath;
Symbol path; Symbol file;
FileOrigin origin;
ErrorInfo error; ErrorInfo error;
Symbol sLetBody; Symbol sLetBody;
ParseData(EvalState & state) ParseData(EvalState & state)
@ -67,16 +68,15 @@ static void dupAttr(const AttrPath & attrPath, const Pos & pos, const Pos & prev
throw ParseError({ throw ParseError({
.hint = hintfmt("attribute '%1%' already defined at %2%", .hint = hintfmt("attribute '%1%' already defined at %2%",
showAttrPath(attrPath), prevPos), showAttrPath(attrPath), prevPos),
.nixCode = NixCode { .errPos = pos }, .errPos = pos
}); });
} }
static void dupAttr(Symbol attr, const Pos & pos, const Pos & prevPos) static void dupAttr(Symbol attr, const Pos & pos, const Pos & prevPos)
{ {
throw ParseError({ throw ParseError({
.hint = hintfmt("attribute '%1%' already defined at %2%", attr, prevPos), .hint = hintfmt("attribute '%1%' already defined at %2%", attr, prevPos),
.nixCode = NixCode { .errPos = pos }, .errPos = pos
}); });
} }
@ -148,7 +148,7 @@ static void addFormal(const Pos & pos, Formals * formals, const Formal & formal)
throw ParseError({ throw ParseError({
.hint = hintfmt("duplicate formal function argument '%1%'", .hint = hintfmt("duplicate formal function argument '%1%'",
formal.name), formal.name),
.nixCode = NixCode { .errPos = pos }, .errPos = pos
}); });
formals->formals.push_front(formal); formals->formals.push_front(formal);
} }
@ -246,7 +246,7 @@ static Expr * stripIndentation(const Pos & pos, SymbolTable & symbols, vector<Ex
static inline Pos makeCurPos(const YYLTYPE & loc, ParseData * data) static inline Pos makeCurPos(const YYLTYPE & loc, ParseData * data)
{ {
return Pos(data->path, loc.first_line, loc.first_column); return Pos(data->origin, data->file, loc.first_line, loc.first_column);
} }
#define CUR_POS makeCurPos(*yylocp, data) #define CUR_POS makeCurPos(*yylocp, data)
@ -259,7 +259,7 @@ void yyerror(YYLTYPE * loc, yyscan_t scanner, ParseData * data, const char * err
{ {
data->error = { data->error = {
.hint = hintfmt(error), .hint = hintfmt(error),
.nixCode = NixCode { .errPos = makeCurPos(*loc, data) } .errPos = makeCurPos(*loc, data)
}; };
} }
@ -339,7 +339,7 @@ expr_function
{ if (!$2->dynamicAttrs.empty()) { if (!$2->dynamicAttrs.empty())
throw ParseError({ throw ParseError({
.hint = hintfmt("dynamic attributes not allowed in let"), .hint = hintfmt("dynamic attributes not allowed in let"),
.nixCode = NixCode { .errPos = CUR_POS }, .errPos = CUR_POS
}); });
$$ = new ExprLet($2, $4); $$ = new ExprLet($2, $4);
} }
@ -419,7 +419,7 @@ expr_simple
if (noURLLiterals) if (noURLLiterals)
throw ParseError({ throw ParseError({
.hint = hintfmt("URL literals are disabled"), .hint = hintfmt("URL literals are disabled"),
.nixCode = NixCode { .errPos = CUR_POS } .errPos = CUR_POS
}); });
$$ = new ExprString(data->symbols.create($1)); $$ = new ExprString(data->symbols.create($1));
} }
@ -492,7 +492,7 @@ attrs
} else } else
throw ParseError({ throw ParseError({
.hint = hintfmt("dynamic attributes not allowed in inherit"), .hint = hintfmt("dynamic attributes not allowed in inherit"),
.nixCode = NixCode { .errPos = makeCurPos(@2, data) }, .errPos = makeCurPos(@2, data)
}); });
} }
| { $$ = new AttrPath; } | { $$ = new AttrPath; }
@ -569,13 +569,24 @@ formal
namespace nix { namespace nix {
Expr * EvalState::parse(const char * text, Expr * EvalState::parse(const char * text, FileOrigin origin,
const Path & path, const Path & basePath, StaticEnv & staticEnv) const Path & path, const Path & basePath, StaticEnv & staticEnv)
{ {
yyscan_t scanner; yyscan_t scanner;
ParseData data(*this); ParseData data(*this);
data.origin = origin;
switch (origin) {
case foFile:
data.file = data.symbols.create(path);
break;
case foStdin:
case foString:
data.file = data.symbols.create(text);
break;
default:
assert(false);
}
data.basePath = basePath; data.basePath = basePath;
data.path = data.symbols.create(path);
yylex_init(&scanner); yylex_init(&scanner);
yy_scan_string(text, scanner); yy_scan_string(text, scanner);
@ -625,13 +636,13 @@ Expr * EvalState::parseExprFromFile(const Path & path)
Expr * EvalState::parseExprFromFile(const Path & path, StaticEnv & staticEnv) Expr * EvalState::parseExprFromFile(const Path & path, StaticEnv & staticEnv)
{ {
return parse(readFile(path).c_str(), path, dirOf(path), staticEnv); return parse(readFile(path).c_str(), foFile, path, dirOf(path), staticEnv);
} }
Expr * EvalState::parseExprFromString(std::string_view s, const Path & basePath, StaticEnv & staticEnv) Expr * EvalState::parseExprFromString(std::string_view s, const Path & basePath, StaticEnv & staticEnv)
{ {
return parse(s.data(), "(string)", basePath, staticEnv); return parse(s.data(), foString, "", basePath, staticEnv);
} }
@ -644,7 +655,7 @@ Expr * EvalState::parseExprFromString(std::string_view s, const Path & basePath)
Expr * EvalState::parseStdin() Expr * EvalState::parseStdin()
{ {
//Activity act(*logger, lvlTalkative, format("parsing standard input")); //Activity act(*logger, lvlTalkative, format("parsing standard input"));
return parseExprFromString(drainFD(0), absPath(".")); return parse(drainFD(0).data(), foStdin, "", absPath("."), staticBaseEnv);
} }
@ -693,7 +704,7 @@ Path EvalState::findFile(SearchPath & searchPath, const string & path, const Pos
? "cannot look up '<%s>' in pure evaluation mode (use '--impure' to override)" ? "cannot look up '<%s>' in pure evaluation mode (use '--impure' to override)"
: "file '%s' was not found in the Nix search path (add it using $NIX_PATH or -I)", : "file '%s' was not found in the Nix search path (add it using $NIX_PATH or -I)",
path), path),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }

103
src/libexpr/primops.cc
View file

@ -96,7 +96,7 @@ static void prim_scopedImport(EvalState & state, const Pos & pos, Value * * args
} catch (InvalidPathError & e) { } catch (InvalidPathError & e) {
throw EvalError({ throw EvalError({
.hint = hintfmt("cannot import '%1%', since path '%2%' is not valid", path, e.path), .hint = hintfmt("cannot import '%1%', since path '%2%' is not valid", path, e.path),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }
@ -177,7 +177,7 @@ void prim_importNative(EvalState & state, const Pos & pos, Value * * args, Value
.hint = hintfmt( .hint = hintfmt(
"cannot import '%1%', since path '%2%' is not valid", "cannot import '%1%', since path '%2%' is not valid",
path, e.path), path, e.path),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }
@ -215,7 +215,7 @@ void prim_exec(EvalState & state, const Pos & pos, Value * * args, Value & v)
if (count == 0) { if (count == 0) {
throw EvalError({ throw EvalError({
.hint = hintfmt("at least one argument to 'exec' required"), .hint = hintfmt("at least one argument to 'exec' required"),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }
PathSet context; PathSet context;
@ -230,7 +230,7 @@ void prim_exec(EvalState & state, const Pos & pos, Value * * args, Value & v)
throw EvalError({ throw EvalError({
.hint = hintfmt("cannot execute '%1%', since path '%2%' is not valid", .hint = hintfmt("cannot execute '%1%', since path '%2%' is not valid",
program, e.path), program, e.path),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }
@ -239,13 +239,13 @@ void prim_exec(EvalState & state, const Pos & pos, Value * * args, Value & v)
try { try {
parsed = state.parseExprFromString(output, pos.file); parsed = state.parseExprFromString(output, pos.file);
} catch (Error & e) { } catch (Error & e) {
e.addPrefix(fmt("While parsing the output from '%1%', at %2%\n", program, pos)); e.addTrace(pos, "While parsing the output from '%1%'", program);
throw; throw;
} }
try { try {
state.eval(parsed, v); state.eval(parsed, v);
} catch (Error & e) { } catch (Error & e) {
e.addPrefix(fmt("While evaluating the output from '%1%', at %2%\n", program, pos)); e.addTrace(pos, "While evaluating the output from '%1%'", program);
throw; throw;
} }
} }
@ -385,7 +385,7 @@ static void prim_genericClosure(EvalState & state, const Pos & pos, Value * * ar
if (startSet == args[0]->attrs->end()) if (startSet == args[0]->attrs->end())
throw EvalError({ throw EvalError({
.hint = hintfmt("attribute 'startSet' required"), .hint = hintfmt("attribute 'startSet' required"),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
state.forceList(*startSet->value, pos); state.forceList(*startSet->value, pos);
@ -399,7 +399,7 @@ static void prim_genericClosure(EvalState & state, const Pos & pos, Value * * ar
if (op == args[0]->attrs->end()) if (op == args[0]->attrs->end())
throw EvalError({ throw EvalError({
.hint = hintfmt("attribute 'operator' required"), .hint = hintfmt("attribute 'operator' required"),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
state.forceValue(*op->value, pos); state.forceValue(*op->value, pos);
@ -421,7 +421,7 @@ static void prim_genericClosure(EvalState & state, const Pos & pos, Value * * ar
if (key == e->attrs->end()) if (key == e->attrs->end())
throw EvalError({ throw EvalError({
.hint = hintfmt("attribute 'key' required"), .hint = hintfmt("attribute 'key' required"),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
state.forceValue(*key->value, pos); state.forceValue(*key->value, pos);
@ -471,7 +471,7 @@ static void prim_addErrorContext(EvalState & state, const Pos & pos, Value * * a
v = *args[1]; v = *args[1];
} catch (Error & e) { } catch (Error & e) {
PathSet context; PathSet context;
e.addPrefix(format("%1%\n") % state.coerceToString(pos, *args[0], context)); e.addTrace(std::nullopt, state.coerceToString(pos, *args[0], context));
throw; throw;
} }
} }
@ -556,14 +556,14 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
if (attr == args[0]->attrs->end()) if (attr == args[0]->attrs->end())
throw EvalError({ throw EvalError({
.hint = hintfmt("required attribute 'name' missing"), .hint = hintfmt("required attribute 'name' missing"),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
string drvName; string drvName;
Pos & posDrvName(*attr->pos); Pos & posDrvName(*attr->pos);
try { try {
drvName = state.forceStringNoCtx(*attr->value, pos); drvName = state.forceStringNoCtx(*attr->value, pos);
} catch (Error & e) { } catch (Error & e) {
e.addPrefix(fmt("while evaluating the derivation attribute 'name' at %1%:\n", posDrvName)); e.addTrace(posDrvName, "while evaluating the derivation attribute 'name'");
throw; throw;
} }
@ -603,7 +603,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
else else
throw EvalError({ throw EvalError({
.hint = hintfmt("invalid value '%s' for 'outputHashMode' attribute", s), .hint = hintfmt("invalid value '%s' for 'outputHashMode' attribute", s),
.nixCode = NixCode { .errPos = posDrvName } .errPos = posDrvName
}); });
}; };
@ -613,7 +613,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
if (outputs.find(j) != outputs.end()) if (outputs.find(j) != outputs.end())
throw EvalError({ throw EvalError({
.hint = hintfmt("duplicate derivation output '%1%'", j), .hint = hintfmt("duplicate derivation output '%1%'", j),
.nixCode = NixCode { .errPos = posDrvName } .errPos = posDrvName
}); });
/* !!! Check whether j is a valid attribute /* !!! Check whether j is a valid attribute
name. */ name. */
@ -623,14 +623,14 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
if (j == "drv") if (j == "drv")
throw EvalError({ throw EvalError({
.hint = hintfmt("invalid derivation output name 'drv'" ), .hint = hintfmt("invalid derivation output name 'drv'" ),
.nixCode = NixCode { .errPos = posDrvName } .errPos = posDrvName
}); });
outputs.insert(j); outputs.insert(j);
} }
if (outputs.empty()) if (outputs.empty())
throw EvalError({ throw EvalError({
.hint = hintfmt("derivation cannot have an empty set of outputs"), .hint = hintfmt("derivation cannot have an empty set of outputs"),
.nixCode = NixCode { .errPos = posDrvName } .errPos = posDrvName
}); });
}; };
@ -696,8 +696,9 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
} }
} catch (Error & e) { } catch (Error & e) {
e.addPrefix(format("while evaluating the attribute '%1%' of the derivation '%2%' at %3%:\n") e.addTrace(posDrvName,
% key % drvName % posDrvName); "while evaluating the attribute '%1%' of the derivation '%2%'",
key, drvName);
throw; throw;
} }
} }
@ -745,20 +746,20 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
if (drv.builder == "") if (drv.builder == "")
throw EvalError({ throw EvalError({
.hint = hintfmt("required attribute 'builder' missing"), .hint = hintfmt("required attribute 'builder' missing"),
.nixCode = NixCode { .errPos = posDrvName } .errPos = posDrvName
}); });
if (drv.platform == "") if (drv.platform == "")
throw EvalError({ throw EvalError({
.hint = hintfmt("required attribute 'system' missing"), .hint = hintfmt("required attribute 'system' missing"),
.nixCode = NixCode { .errPos = posDrvName } .errPos = posDrvName
}); });
/* Check whether the derivation name is valid. */ /* Check whether the derivation name is valid. */
if (isDerivation(drvName)) if (isDerivation(drvName))
throw EvalError({ throw EvalError({
.hint = hintfmt("derivation names are not allowed to end in '%s'", drvExtension), .hint = hintfmt("derivation names are not allowed to end in '%s'", drvExtension),
.nixCode = NixCode { .errPos = posDrvName } .errPos = posDrvName
}); });
if (outputHash) { if (outputHash) {
@ -766,7 +767,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
if (outputs.size() != 1 || *(outputs.begin()) != "out") if (outputs.size() != 1 || *(outputs.begin()) != "out")
throw Error({ throw Error({
.hint = hintfmt("multiple outputs are not supported in fixed-output derivations"), .hint = hintfmt("multiple outputs are not supported in fixed-output derivations"),
.nixCode = NixCode { .errPos = posDrvName } .errPos = posDrvName
}); });
std::optional<HashType> ht = parseHashTypeOpt(outputHashAlgo); std::optional<HashType> ht = parseHashTypeOpt(outputHashAlgo);
@ -880,7 +881,7 @@ static void prim_storePath(EvalState & state, const Pos & pos, Value * * args, V
if (!state.store->isInStore(path)) if (!state.store->isInStore(path))
throw EvalError({ throw EvalError({
.hint = hintfmt("path '%1%' is not in the Nix store", path), .hint = hintfmt("path '%1%' is not in the Nix store", path),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
Path path2 = state.store->toStorePath(path); Path path2 = state.store->toStorePath(path);
if (!settings.readOnlyMode) if (!settings.readOnlyMode)
@ -901,7 +902,7 @@ static void prim_pathExists(EvalState & state, const Pos & pos, Value * * args,
.hint = hintfmt( .hint = hintfmt(
"cannot check the existence of '%1%', since path '%2%' is not valid", "cannot check the existence of '%1%', since path '%2%' is not valid",
path, e.path), path, e.path),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }
@ -947,7 +948,7 @@ static void prim_readFile(EvalState & state, const Pos & pos, Value * * args, Va
} catch (InvalidPathError & e) { } catch (InvalidPathError & e) {
throw EvalError({ throw EvalError({
.hint = hintfmt("cannot read '%1%', since path '%2%' is not valid", path, e.path), .hint = hintfmt("cannot read '%1%', since path '%2%' is not valid", path, e.path),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }
string s = readFile(state.checkSourcePath(state.toRealPath(path, context))); string s = readFile(state.checkSourcePath(state.toRealPath(path, context)));
@ -978,7 +979,7 @@ static void prim_findFile(EvalState & state, const Pos & pos, Value * * args, Va
if (i == v2.attrs->end()) if (i == v2.attrs->end())
throw EvalError({ throw EvalError({
.hint = hintfmt("attribute 'path' missing"), .hint = hintfmt("attribute 'path' missing"),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
PathSet context; PathSet context;
@ -989,7 +990,7 @@ static void prim_findFile(EvalState & state, const Pos & pos, Value * * args, Va
} catch (InvalidPathError & e) { } catch (InvalidPathError & e) {
throw EvalError({ throw EvalError({
.hint = hintfmt("cannot find '%1%', since path '%2%' is not valid", path, e.path), .hint = hintfmt("cannot find '%1%', since path '%2%' is not valid", path, e.path),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }
@ -1009,7 +1010,7 @@ static void prim_hashFile(EvalState & state, const Pos & pos, Value * * args, Va
if (!ht) if (!ht)
throw Error({ throw Error({
.hint = hintfmt("unknown hash type '%1%'", type), .hint = hintfmt("unknown hash type '%1%'", type),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
PathSet context; // discarded PathSet context; // discarded
@ -1028,7 +1029,7 @@ static void prim_readDir(EvalState & state, const Pos & pos, Value * * args, Val
} catch (InvalidPathError & e) { } catch (InvalidPathError & e) {
throw EvalError({ throw EvalError({
.hint = hintfmt("cannot read '%1%', since path '%2%' is not valid", path, e.path), .hint = hintfmt("cannot read '%1%', since path '%2%' is not valid", path, e.path),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }
@ -1104,7 +1105,7 @@ static void prim_toFile(EvalState & state, const Pos & pos, Value * * args, Valu
"in 'toFile': the file named '%1%' must not contain a reference " "in 'toFile': the file named '%1%' must not contain a reference "
"to a derivation but contains (%2%)", "to a derivation but contains (%2%)",
name, path), name, path),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
refs.insert(state.store->parseStorePath(path)); refs.insert(state.store->parseStorePath(path));
} }
@ -1175,7 +1176,7 @@ static void prim_filterSource(EvalState & state, const Pos & pos, Value * * args
if (!context.empty()) if (!context.empty())
throw EvalError({ throw EvalError({
.hint = hintfmt("string '%1%' cannot refer to other paths", path), .hint = hintfmt("string '%1%' cannot refer to other paths", path),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
state.forceValue(*args[0], pos); state.forceValue(*args[0], pos);
@ -1184,7 +1185,7 @@ static void prim_filterSource(EvalState & state, const Pos & pos, Value * * args
.hint = hintfmt( .hint = hintfmt(
"first argument in call to 'filterSource' is not a function but %1%", "first argument in call to 'filterSource' is not a function but %1%",
showType(*args[0])), showType(*args[0])),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
addPath(state, pos, std::string(baseNameOf(path)), path, args[0], FileIngestionMethod::Recursive, std::nullopt, v); addPath(state, pos, std::string(baseNameOf(path)), path, args[0], FileIngestionMethod::Recursive, std::nullopt, v);
@ -1207,7 +1208,7 @@ static void prim_path(EvalState & state, const Pos & pos, Value * * args, Value
if (!context.empty()) if (!context.empty())
throw EvalError({ throw EvalError({
.hint = hintfmt("string '%1%' cannot refer to other paths", path), .hint = hintfmt("string '%1%' cannot refer to other paths", path),
.nixCode = NixCode { .errPos = *attr.pos } .errPos = *attr.pos
}); });
} else if (attr.name == state.sName) } else if (attr.name == state.sName)
name = state.forceStringNoCtx(*attr.value, *attr.pos); name = state.forceStringNoCtx(*attr.value, *attr.pos);
@ -1221,13 +1222,13 @@ static void prim_path(EvalState & state, const Pos & pos, Value * * args, Value
else else
throw EvalError({ throw EvalError({
.hint = hintfmt("unsupported argument '%1%' to 'addPath'", attr.name), .hint = hintfmt("unsupported argument '%1%' to 'addPath'", attr.name),
.nixCode = NixCode { .errPos = *attr.pos } .errPos = *attr.pos
}); });
} }
if (path.empty()) if (path.empty())
throw EvalError({ throw EvalError({
.hint = hintfmt("'path' required"), .hint = hintfmt("'path' required"),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
if (name.empty()) if (name.empty())
name = baseNameOf(path); name = baseNameOf(path);
@ -1288,7 +1289,7 @@ void prim_getAttr(EvalState & state, const Pos & pos, Value * * args, Value & v)
if (i == args[1]->attrs->end()) if (i == args[1]->attrs->end())
throw EvalError({ throw EvalError({
.hint = hintfmt("attribute '%1%' missing", attr), .hint = hintfmt("attribute '%1%' missing", attr),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
// !!! add to stack trace? // !!! add to stack trace?
if (state.countCalls && i->pos) state.attrSelects[*i->pos]++; if (state.countCalls && i->pos) state.attrSelects[*i->pos]++;
@ -1371,7 +1372,7 @@ static void prim_listToAttrs(EvalState & state, const Pos & pos, Value * * args,
if (j == v2.attrs->end()) if (j == v2.attrs->end())
throw TypeError({ throw TypeError({
.hint = hintfmt("'name' attribute missing in a call to 'listToAttrs'"), .hint = hintfmt("'name' attribute missing in a call to 'listToAttrs'"),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
string name = state.forceStringNoCtx(*j->value, pos); string name = state.forceStringNoCtx(*j->value, pos);
@ -1381,7 +1382,7 @@ static void prim_listToAttrs(EvalState & state, const Pos & pos, Value * * args,
if (j2 == v2.attrs->end()) if (j2 == v2.attrs->end())
throw TypeError({ throw TypeError({
.hint = hintfmt("'value' attribute missing in a call to 'listToAttrs'"), .hint = hintfmt("'value' attribute missing in a call to 'listToAttrs'"),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
v.attrs->push_back(Attr(sym, j2->value, j2->pos)); v.attrs->push_back(Attr(sym, j2->value, j2->pos));
} }
@ -1457,7 +1458,7 @@ static void prim_functionArgs(EvalState & state, const Pos & pos, Value * * args
if (args[0]->type != tLambda) if (args[0]->type != tLambda)
throw TypeError({ throw TypeError({
.hint = hintfmt("'functionArgs' requires a function"), .hint = hintfmt("'functionArgs' requires a function"),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
if (!args[0]->lambda.fun->matchAttrs) { if (!args[0]->lambda.fun->matchAttrs) {
@ -1513,7 +1514,7 @@ static void elemAt(EvalState & state, const Pos & pos, Value & list, int n, Valu
if (n < 0 || (unsigned int) n >= list.listSize()) if (n < 0 || (unsigned int) n >= list.listSize())
throw Error({ throw Error({
.hint = hintfmt("list index %1% is out of bounds", n), .hint = hintfmt("list index %1% is out of bounds", n),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
state.forceValue(*list.listElems()[n], pos); state.forceValue(*list.listElems()[n], pos);
v = *list.listElems()[n]; v = *list.listElems()[n];
@ -1543,7 +1544,7 @@ static void prim_tail(EvalState & state, const Pos & pos, Value * * args, Value
if (args[0]->listSize() == 0) if (args[0]->listSize() == 0)
throw Error({ throw Error({
.hint = hintfmt("'tail' called on an empty list"), .hint = hintfmt("'tail' called on an empty list"),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
state.mkList(v, args[0]->listSize() - 1); state.mkList(v, args[0]->listSize() - 1);
@ -1688,7 +1689,7 @@ static void prim_genList(EvalState & state, const Pos & pos, Value * * args, Val
if (len < 0) if (len < 0)
throw EvalError({ throw EvalError({
.hint = hintfmt("cannot create list of size %1%", len), .hint = hintfmt("cannot create list of size %1%", len),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
state.mkList(v, len); state.mkList(v, len);
@ -1850,7 +1851,7 @@ static void prim_div(EvalState & state, const Pos & pos, Value * * args, Value &
if (f2 == 0) if (f2 == 0)
throw EvalError({ throw EvalError({
.hint = hintfmt("division by zero"), .hint = hintfmt("division by zero"),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
if (args[0]->type == tFloat || args[1]->type == tFloat) { if (args[0]->type == tFloat || args[1]->type == tFloat) {
@ -1862,7 +1863,7 @@ static void prim_div(EvalState & state, const Pos & pos, Value * * args, Value &
if (i1 == std::numeric_limits<NixInt>::min() && i2 == -1) if (i1 == std::numeric_limits<NixInt>::min() && i2 == -1)
throw EvalError({ throw EvalError({
.hint = hintfmt("overflow in integer division"), .hint = hintfmt("overflow in integer division"),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
mkInt(v, i1 / i2); mkInt(v, i1 / i2);
@ -1923,7 +1924,7 @@ static void prim_substring(EvalState & state, const Pos & pos, Value * * args, V
if (start < 0) if (start < 0)
throw EvalError({ throw EvalError({
.hint = hintfmt("negative start position in 'substring'"), .hint = hintfmt("negative start position in 'substring'"),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
mkString(v, (unsigned int) start >= s.size() ? "" : string(s, start, len), context); mkString(v, (unsigned int) start >= s.size() ? "" : string(s, start, len), context);
@ -1946,7 +1947,7 @@ static void prim_hashString(EvalState & state, const Pos & pos, Value * * args,
if (!ht) if (!ht)
throw Error({ throw Error({
.hint = hintfmt("unknown hash type '%1%'", type), .hint = hintfmt("unknown hash type '%1%'", type),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
PathSet context; // discarded PathSet context; // discarded
@ -1992,12 +1993,12 @@ void prim_match(EvalState & state, const Pos & pos, Value * * args, Value & v)
// limit is _GLIBCXX_REGEX_STATE_LIMIT for libstdc++ // limit is _GLIBCXX_REGEX_STATE_LIMIT for libstdc++
throw EvalError({ throw EvalError({
.hint = hintfmt("memory limit exceeded by regular expression '%s'", re), .hint = hintfmt("memory limit exceeded by regular expression '%s'", re),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} else { } else {
throw EvalError({ throw EvalError({
.hint = hintfmt("invalid regular expression '%s'", re), .hint = hintfmt("invalid regular expression '%s'", re),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }
} }
@ -2065,12 +2066,12 @@ static void prim_split(EvalState & state, const Pos & pos, Value * * args, Value
// limit is _GLIBCXX_REGEX_STATE_LIMIT for libstdc++ // limit is _GLIBCXX_REGEX_STATE_LIMIT for libstdc++
throw EvalError({ throw EvalError({
.hint = hintfmt("memory limit exceeded by regular expression '%s'", re), .hint = hintfmt("memory limit exceeded by regular expression '%s'", re),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} else { } else {
throw EvalError({ throw EvalError({
.hint = hintfmt("invalid regular expression '%s'", re), .hint = hintfmt("invalid regular expression '%s'", re),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }
} }
@ -2104,7 +2105,7 @@ static void prim_replaceStrings(EvalState & state, const Pos & pos, Value * * ar
if (args[0]->listSize() != args[1]->listSize()) if (args[0]->listSize() != args[1]->listSize())
throw EvalError({ throw EvalError({
.hint = hintfmt("'from' and 'to' arguments to 'replaceStrings' have different lengths"), .hint = hintfmt("'from' and 'to' arguments to 'replaceStrings' have different lengths"),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
vector<string> from; vector<string> from;

6
src/libexpr/primops/context.cc
View file

@ -148,7 +148,7 @@ static void prim_appendContext(EvalState & state, const Pos & pos, Value * * arg
if (!state.store->isStorePath(i.name)) if (!state.store->isStorePath(i.name))
throw EvalError({ throw EvalError({
.hint = hintfmt("Context key '%s' is not a store path", i.name), .hint = hintfmt("Context key '%s' is not a store path", i.name),
.nixCode = NixCode { .errPos = *i.pos } .errPos = *i.pos
}); });
if (!settings.readOnlyMode) if (!settings.readOnlyMode)
state.store->ensurePath(state.store->parseStorePath(i.name)); state.store->ensurePath(state.store->parseStorePath(i.name));
@ -165,7 +165,7 @@ static void prim_appendContext(EvalState & state, const Pos & pos, Value * * arg
if (!isDerivation(i.name)) { if (!isDerivation(i.name)) {
throw EvalError({ throw EvalError({
.hint = hintfmt("Tried to add all-outputs context of %s, which is not a derivation, to a string", i.name), .hint = hintfmt("Tried to add all-outputs context of %s, which is not a derivation, to a string", i.name),
.nixCode = NixCode { .errPos = *i.pos } .errPos = *i.pos
}); });
} }
context.insert("=" + string(i.name)); context.insert("=" + string(i.name));
@ -178,7 +178,7 @@ static void prim_appendContext(EvalState & state, const Pos & pos, Value * * arg
if (iter->value->listSize() && !isDerivation(i.name)) { if (iter->value->listSize() && !isDerivation(i.name)) {
throw EvalError({ throw EvalError({
.hint = hintfmt("Tried to add derivation output context of %s, which is not a derivation, to a string", i.name), .hint = hintfmt("Tried to add derivation output context of %s, which is not a derivation, to a string", i.name),
.nixCode = NixCode { .errPos = *i.pos } .errPos = *i.pos
}); });
} }
for (unsigned int n = 0; n < iter->value->listSize(); ++n) { for (unsigned int n = 0; n < iter->value->listSize(); ++n) {

4
src/libexpr/primops/fetchGit.cc
View file

@ -37,14 +37,14 @@ static void prim_fetchGit(EvalState & state, const Pos & pos, Value * * args, Va
else else
throw EvalError({ throw EvalError({
.hint = hintfmt("unsupported argument '%s' to 'fetchGit'", attr.name), .hint = hintfmt("unsupported argument '%s' to 'fetchGit'", attr.name),
.nixCode = NixCode { .errPos = *attr.pos } .errPos = *attr.pos
}); });
} }
if (url.empty()) if (url.empty())
throw EvalError({ throw EvalError({
.hint = hintfmt("'url' argument required"), .hint = hintfmt("'url' argument required"),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} else } else

4
src/libexpr/primops/fetchMercurial.cc
View file

@ -40,14 +40,14 @@ static void prim_fetchMercurial(EvalState & state, const Pos & pos, Value * * ar
else else
throw EvalError({ throw EvalError({
.hint = hintfmt("unsupported argument '%s' to 'fetchMercurial'", attr.name), .hint = hintfmt("unsupported argument '%s' to 'fetchMercurial'", attr.name),
.nixCode = NixCode { .errPos = *attr.pos } .errPos = *attr.pos
}); });
} }
if (url.empty()) if (url.empty())
throw EvalError({ throw EvalError({
.hint = hintfmt("'url' argument required"), .hint = hintfmt("'url' argument required"),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} else } else

6
src/libexpr/primops/fetchTree.cc
View file

@ -68,7 +68,7 @@ static void prim_fetchTree(EvalState & state, const Pos & pos, Value * * args, V
if (!attrs.count("type")) if (!attrs.count("type"))
throw Error({ throw Error({
.hint = hintfmt("attribute 'type' is missing in call to 'fetchTree'"), .hint = hintfmt("attribute 'type' is missing in call to 'fetchTree'"),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
input = fetchers::inputFromAttrs(attrs); input = fetchers::inputFromAttrs(attrs);
@ -112,14 +112,14 @@ static void fetch(EvalState & state, const Pos & pos, Value * * args, Value & v,
else else
throw EvalError({ throw EvalError({
.hint = hintfmt("unsupported argument '%s' to '%s'", attr.name, who), .hint = hintfmt("unsupported argument '%s' to '%s'", attr.name, who),
.nixCode = NixCode { .errPos = *attr.pos } .errPos = *attr.pos
}); });
} }
if (!url) if (!url)
throw EvalError({ throw EvalError({
.hint = hintfmt("'url' argument required"), .hint = hintfmt("'url' argument required"),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} else } else
url = state.forceStringNoCtx(*args[0], pos); url = state.forceStringNoCtx(*args[0], pos);

2
src/libexpr/primops/fromTOML.cc
View file

@ -83,7 +83,7 @@ static void prim_fromTOML(EvalState & state, const Pos & pos, Value * * args, Va
} catch (std::runtime_error & e) { } catch (std::runtime_error & e) {
throw EvalError({ throw EvalError({
.hint = hintfmt("while parsing a TOML string: %s", e.what()), .hint = hintfmt("while parsing a TOML string: %s", e.what()),
.nixCode = NixCode { .errPos = pos } .errPos = pos
}); });
} }
} }

2
src/libmain/loggers.cc
View file

@ -26,7 +26,7 @@ Logger * makeDefaultLogger() {
case LogFormat::rawWithLogs: case LogFormat::rawWithLogs:
return makeSimpleLogger(true); return makeSimpleLogger(true);
case LogFormat::internalJson: case LogFormat::internalJson:
return makeJSONLogger(*makeSimpleLogger()); return makeJSONLogger(*makeSimpleLogger(true));
case LogFormat::bar: case LogFormat::bar:
return makeProgressBar(); return makeProgressBar();
case LogFormat::barWithLogs: case LogFormat::barWithLogs:

2
src/libmain/progress-bar.cc
View file

@ -131,7 +131,7 @@ public:
auto state(state_.lock()); auto state(state_.lock());
std::stringstream oss; std::stringstream oss;
oss << ei; showErrorInfo(oss, ei, loggerSettings.showTrace.get());
log(*state, ei.level, oss.str()); log(*state, ei.level, oss.str());
} }

4
src/libmain/shared.cc
View file

@ -323,10 +323,8 @@ int handleExceptions(const string & programName, std::function<void()> fun)
printError("Try '%1% --help' for more information.", programName); printError("Try '%1% --help' for more information.", programName);
return 1; return 1;
} catch (BaseError & e) { } catch (BaseError & e) {
if (settings.showTrace && e.prefix() != "")
printError(e.prefix());
logError(e.info()); logError(e.info());
if (e.prefix() != "" && !settings.showTrace) if (e.hasTrace() && !loggerSettings.showTrace.get())
printError("(use '--show-trace' to show detailed location information)"); printError("(use '--show-trace' to show detailed location information)");
return e.status; return e.status;
} catch (std::bad_alloc & e) { } catch (std::bad_alloc & e) {

5
src/libstore/build.cc
View file

@ -2041,7 +2041,10 @@ void DerivationGoal::startBuilder()
if (!std::regex_match(fileName, regex)) if (!std::regex_match(fileName, regex))
throw Error("invalid file name '%s' in 'exportReferencesGraph'", fileName); throw Error("invalid file name '%s' in 'exportReferencesGraph'", fileName);
auto storePath = worker.store.parseStorePath(*i++); auto storePathS = *i++;
if (!worker.store.isInStore(storePathS))
throw BuildError("'exportReferencesGraph' contains a non-store path '%1%'", storePathS);
auto storePath = worker.store.parseStorePath(worker.store.toStorePath(storePathS));
/* Write closure info to <fileName>. */ /* Write closure info to <fileName>. */
writeFile(tmpDir + "/" + fileName, writeFile(tmpDir + "/" + fileName,

12
src/libstore/content-address.cc
View file

@ -82,4 +82,16 @@ std::string renderContentAddress(std::optional<ContentAddress> ca) {
return ca ? renderContentAddress(*ca) : ""; return ca ? renderContentAddress(*ca) : "";
} }
Hash getContentAddressHash(const ContentAddress & ca)
{
return std::visit(overloaded {
[](TextHash th) {
return th.hash;
},
[](FixedOutputHash fsh) {
return fsh.hash;
}
}, ca);
}
} }

2
src/libstore/content-address.hh
View file

@ -53,4 +53,6 @@ ContentAddress parseContentAddress(std::string_view rawCa);
std::optional<ContentAddress> parseContentAddressOpt(std::string_view rawCaOpt); std::optional<ContentAddress> parseContentAddressOpt(std::string_view rawCaOpt);
Hash getContentAddressHash(const ContentAddress & ca);
} }

4
src/libstore/daemon.cc
View file

@ -78,10 +78,10 @@ struct TunnelLogger : public Logger
if (ei.level > verbosity) return; if (ei.level > verbosity) return;
std::stringstream oss; std::stringstream oss;
oss << ei; showErrorInfo(oss, ei, false);
StringSink buf; StringSink buf;
buf << STDERR_NEXT << oss.str() << "\n"; // (fs.s + "\n"); buf << STDERR_NEXT << oss.str();
enqueueMsg(*buf.s); enqueueMsg(*buf.s);
} }

7
src/libstore/globals.hh
View file

@ -196,10 +196,6 @@ public:
/* Whether to lock the Nix client and worker to the same CPU. */ /* Whether to lock the Nix client and worker to the same CPU. */
bool lockCPU; bool lockCPU;
/* Whether to show a stack trace if Nix evaluation fails. */
Setting<bool> showTrace{this, false, "show-trace",
"Whether to show a stack trace on evaluation errors."};
Setting<SandboxMode> sandboxMode{this, Setting<SandboxMode> sandboxMode{this,
#if __linux__ #if __linux__
smEnabled smEnabled
@ -369,6 +365,9 @@ public:
Setting<bool> warnDirty{this, true, "warn-dirty", Setting<bool> warnDirty{this, true, "warn-dirty",
"Whether to warn about dirty Git/Mercurial trees."}; "Whether to warn about dirty Git/Mercurial trees."};
Setting<size_t> narBufferSize{this, 32 * 1024 * 1024, "nar-buffer-size",
"Maximum size of NARs before spilling them to disk."};
}; };

135
src/libstore/local-store.cc
View file

@ -976,7 +976,7 @@ void LocalStore::addToStore(const ValidPathInfo & info, Source & source,
PathLocks outputLock; PathLocks outputLock;
Path realPath = realStoreDir + "/" + std::string(info.path.to_string()); auto realPath = Store::toRealPath(info.path);
/* Lock the output path. But don't lock if we're being called /* Lock the output path. But don't lock if we're being called
from a build hook (whose parent process already acquired a from a build hook (whose parent process already acquired a
@ -1047,8 +1047,7 @@ StorePath LocalStore::addToStoreFromDump(const string & dump, const string & nam
/* The first check above is an optimisation to prevent /* The first check above is an optimisation to prevent
unnecessary lock acquisition. */ unnecessary lock acquisition. */
Path realPath = realStoreDir + "/"; auto realPath = Store::toRealPath(dstPath);
realPath += dstPath.to_string();
PathLocks outputLock({realPath}); PathLocks outputLock({realPath});
@ -1098,16 +1097,125 @@ StorePath LocalStore::addToStore(const string & name, const Path & _srcPath,
{ {
Path srcPath(absPath(_srcPath)); Path srcPath(absPath(_srcPath));
/* Read the whole path into memory. This is not a very scalable /* For computing the NAR hash. */
method for very large paths, but `copyPath' is mainly used for auto sha256Sink = std::make_unique<HashSink>(htSHA256);
small files. */
StringSink sink;
if (method == FileIngestionMethod::Recursive)
dumpPath(srcPath, sink, filter);
else
sink.s = make_ref<std::string>(readFile(srcPath));
return addToStoreFromDump(*sink.s, name, method, hashAlgo, repair); /* For computing the store path. In recursive SHA-256 mode, this
is the same as the NAR hash, so no need to do it again. */
std::unique_ptr<HashSink> hashSink =
method == FileIngestionMethod::Recursive && hashAlgo == htSHA256
? nullptr
: std::make_unique<HashSink>(hashAlgo);
/* Read the source path into memory, but only if it's up to
narBufferSize bytes. If it's larger, write it to a temporary
location in the Nix store. If the subsequently computed
destination store path is already valid, we just delete the
temporary path. Otherwise, we move it to the destination store
path. */
bool inMemory = true;
std::string nar;
auto source = sinkToSource([&](Sink & sink) {
LambdaSink sink2([&](const unsigned char * buf, size_t len) {
(*sha256Sink)(buf, len);
if (hashSink) (*hashSink)(buf, len);
if (inMemory) {
if (nar.size() + len > settings.narBufferSize) {
inMemory = false;
sink << 1;
sink((const unsigned char *) nar.data(), nar.size());
nar.clear();
} else {
nar.append((const char *) buf, len);
}
}
if (!inMemory) sink(buf, len);
});
if (method == FileIngestionMethod::Recursive)
dumpPath(srcPath, sink2, filter);
else
readFile(srcPath, sink2);
});
std::unique_ptr<AutoDelete> delTempDir;
Path tempPath;
try {
/* Wait for the source coroutine to give us some dummy
data. This is so that we don't create the temporary
directory if the NAR fits in memory. */
readInt(*source);
auto tempDir = createTempDir(realStoreDir, "add");
delTempDir = std::make_unique<AutoDelete>(tempDir);
tempPath = tempDir + "/x";
if (method == FileIngestionMethod::Recursive)
restorePath(tempPath, *source);
else
writeFile(tempPath, *source);
} catch (EndOfFile &) {
if (!inMemory) throw;
/* The NAR fits in memory, so we didn't do restorePath(). */
}
auto sha256 = sha256Sink->finish();
Hash hash = hashSink ? hashSink->finish().first : sha256.first;
auto dstPath = makeFixedOutputPath(method, hash, name);
addTempRoot(dstPath);
if (repair || !isValidPath(dstPath)) {
/* The first check above is an optimisation to prevent
unnecessary lock acquisition. */
auto realPath = Store::toRealPath(dstPath);
PathLocks outputLock({realPath});
if (repair || !isValidPath(dstPath)) {
deletePath(realPath);
autoGC();
if (inMemory) {
/* Restore from the NAR in memory. */
StringSource source(nar);
if (method == FileIngestionMethod::Recursive)
restorePath(realPath, source);
else
writeFile(realPath, source);
} else {
/* Move the temporary path we restored above. */
if (rename(tempPath.c_str(), realPath.c_str()))
throw Error("renaming '%s' to '%s'", tempPath, realPath);
}
canonicalisePathMetaData(realPath, -1); // FIXME: merge into restorePath
optimisePath(realPath);
ValidPathInfo info(dstPath);
info.narHash = sha256.first;
info.narSize = sha256.second;
info.ca = FixedOutputHash { .method = method, .hash = hash };
registerValidPath(info);
}
outputLock.setDeletion(true);
}
return dstPath;
} }
@ -1121,8 +1229,7 @@ StorePath LocalStore::addTextToStore(const string & name, const string & s,
if (repair || !isValidPath(dstPath)) { if (repair || !isValidPath(dstPath)) {
Path realPath = realStoreDir + "/"; auto realPath = Store::toRealPath(dstPath);
realPath += dstPath.to_string();
PathLocks outputLock({realPath}); PathLocks outputLock({realPath});

3
src/libstore/remote-store.cc
View file

@ -8,6 +8,7 @@
#include "derivations.hh" #include "derivations.hh"
#include "pool.hh" #include "pool.hh"
#include "finally.hh" #include "finally.hh"
#include "logging.hh"
#include <sys/types.h> #include <sys/types.h>
#include <sys/stat.h> #include <sys/stat.h>
@ -220,7 +221,7 @@ void RemoteStore::setOptions(Connection & conn)
overrides.erase(settings.maxSilentTime.name); overrides.erase(settings.maxSilentTime.name);
overrides.erase(settings.buildCores.name); overrides.erase(settings.buildCores.name);
overrides.erase(settings.useSubstitutes.name); overrides.erase(settings.useSubstitutes.name);
overrides.erase(settings.showTrace.name); overrides.erase(loggerSettings.showTrace.name);
conn.to << overrides.size(); conn.to << overrides.size();
for (auto & i : overrides) for (auto & i : overrides)
conn.to << i.first << i.second.value; conn.to << i.first << i.second.value;

35
src/libstore/store-api.cc
View file

@ -7,6 +7,7 @@
#include "json.hh" #include "json.hh"
#include "derivations.hh" #include "derivations.hh"
#include "url.hh" #include "url.hh"
#include "archive.hh"
#include <future> #include <future>
@ -221,6 +222,40 @@ StorePath Store::computeStorePathForText(const string & name, const string & s,
} }
ValidPathInfo Store::addToStoreSlow(std::string_view name, const Path & srcPath,
FileIngestionMethod method, HashType hashAlgo,
std::optional<Hash> expectedCAHash)
{
/* FIXME: inefficient: we're reading/hashing 'tmpFile' three
times. */
auto [narHash, narSize] = hashPath(htSHA256, srcPath);
auto hash = method == FileIngestionMethod::Recursive
? hashAlgo == htSHA256
? narHash
: hashPath(hashAlgo, srcPath).first
: hashFile(hashAlgo, srcPath);
if (expectedCAHash && expectedCAHash != hash)
throw Error("hash mismatch for '%s'", srcPath);
ValidPathInfo info(makeFixedOutputPath(method, hash, name));
info.narHash = narHash;
info.narSize = narSize;
info.ca = FixedOutputHash { .method = method, .hash = hash };
if (!isValidPath(info.path)) {
auto source = sinkToSource([&](Sink & sink) {
dumpPath(srcPath, sink);
});
addToStore(info, *source);
}
return info;
}
Store::Store(const Params & params) Store::Store(const Params & params)
: Config(params) : Config(params)
, state({(size_t) pathInfoCacheSize}) , state({(size_t) pathInfoCacheSize})

7
src/libstore/store-api.hh
View file

@ -451,6 +451,13 @@ public:
FileIngestionMethod method = FileIngestionMethod::Recursive, HashType hashAlgo = htSHA256, FileIngestionMethod method = FileIngestionMethod::Recursive, HashType hashAlgo = htSHA256,
PathFilter & filter = defaultPathFilter, RepairFlag repair = NoRepair) = 0; PathFilter & filter = defaultPathFilter, RepairFlag repair = NoRepair) = 0;
/* Copy the contents of a path to the store and register the
validity the resulting path, using a constant amount of
memory. */
ValidPathInfo addToStoreSlow(std::string_view name, const Path & srcPath,
FileIngestionMethod method = FileIngestionMethod::Recursive, HashType hashAlgo = htSHA256,
std::optional<Hash> expectedCAHash = {});
// FIXME: remove? // FIXME: remove?
virtual StorePath addToStoreFromDump(const string & dump, const string & name, virtual StorePath addToStoreFromDump(const string & dump, const string & name,
FileIngestionMethod method = FileIngestionMethod::Recursive, HashType hashAlgo = htSHA256, RepairFlag repair = NoRepair) FileIngestionMethod method = FileIngestionMethod::Recursive, HashType hashAlgo = htSHA256, RepairFlag repair = NoRepair)

226
src/libutil/error.cc
View file

@ -7,14 +7,11 @@
namespace nix { namespace nix {
const std::string nativeSystem = SYSTEM; const std::string nativeSystem = SYSTEM;
// addPrefix is used for show-trace. Strings added with addPrefix BaseError & BaseError::addTrace(std::optional<ErrPos> e, hintformat hint)
// will print ahead of the error itself.
BaseError & BaseError::addPrefix(const FormatOrString & fs)
{ {
prefix_ = fs.s + prefix_; err.traces.push_front(Trace { .pos = e, .hint = hint});
return *this; return *this;
} }
@ -28,7 +25,7 @@ const string& BaseError::calcWhat() const
err.name = sname(); err.name = sname();
std::ostringstream oss; std::ostringstream oss;
oss << err; showErrorInfo(oss, err, false);
what_ = oss.str(); what_ = oss.str();
return *what_; return *what_;
@ -56,28 +53,114 @@ string showErrPos(const ErrPos &errPos)
} }
} }
// if nixCode contains lines of code, print them to the ostream, indicating the error column. std::optional<LinesOfCode> getCodeLines(const ErrPos &errPos)
void printCodeLines(std::ostream &out, const string &prefix, const NixCode &nixCode) {
if (errPos.line <= 0)
return std::nullopt;
if (errPos.origin == foFile) {
LinesOfCode loc;
try {
AutoCloseFD fd = open(errPos.file.c_str(), O_RDONLY | O_CLOEXEC);
if (!fd) {
logError(SysError("opening file '%1%'", errPos.file).info());
return std::nullopt;
}
else
{
// count the newlines.
int count = 0;
string line;
int pl = errPos.line - 1;
do
{
line = readLine(fd.get());
++count;
if (count < pl)
{
;
}
else if (count == pl) {
loc.prevLineOfCode = line;
} else if (count == pl + 1) {
loc.errLineOfCode = line;
} else if (count == pl + 2) {
loc.nextLineOfCode = line;
break;
}
} while (true);
return loc;
}
}
catch (EndOfFile &eof) {
if (loc.errLineOfCode.has_value())
return loc;
else
return std::nullopt;
}
catch (std::exception &e) {
printError("error reading nix file: %s\n%s", errPos.file, e.what());
return std::nullopt;
}
} else {
std::istringstream iss(errPos.file);
// count the newlines.
int count = 0;
string line;
int pl = errPos.line - 1;
LinesOfCode loc;
do
{
std::getline(iss, line);
++count;
if (count < pl)
{
;
}
else if (count == pl) {
loc.prevLineOfCode = line;
} else if (count == pl + 1) {
loc.errLineOfCode = line;
} else if (count == pl + 2) {
loc.nextLineOfCode = line;
break;
}
if (!iss.good())
break;
} while (true);
return loc;
}
}
// print lines of code to the ostream, indicating the error column.
void printCodeLines(std::ostream &out,
const string &prefix,
const ErrPos &errPos,
const LinesOfCode &loc)
{ {
// previous line of code. // previous line of code.
if (nixCode.prevLineOfCode.has_value()) { if (loc.prevLineOfCode.has_value()) {
out << std::endl out << std::endl
<< fmt("%1% %|2$5d|| %3%", << fmt("%1% %|2$5d|| %3%",
prefix, prefix,
(nixCode.errPos.line - 1), (errPos.line - 1),
*nixCode.prevLineOfCode); *loc.prevLineOfCode);
} }
if (nixCode.errLineOfCode.has_value()) { if (loc.errLineOfCode.has_value()) {
// line of code containing the error. // line of code containing the error.
out << std::endl out << std::endl
<< fmt("%1% %|2$5d|| %3%", << fmt("%1% %|2$5d|| %3%",
prefix, prefix,
(nixCode.errPos.line), (errPos.line),
*nixCode.errLineOfCode); *loc.errLineOfCode);
// error arrows for the column range. // error arrows for the column range.
if (nixCode.errPos.column > 0) { if (errPos.column > 0) {
int start = nixCode.errPos.column; int start = errPos.column;
std::string spaces; std::string spaces;
for (int i = 0; i < start; ++i) { for (int i = 0; i < start; ++i) {
spaces.append(" "); spaces.append(" ");
@ -94,16 +177,42 @@ void printCodeLines(std::ostream &out, const string &prefix, const NixCode &nixC
} }
// next line of code. // next line of code.
if (nixCode.nextLineOfCode.has_value()) { if (loc.nextLineOfCode.has_value()) {
out << std::endl out << std::endl
<< fmt("%1% %|2$5d|| %3%", << fmt("%1% %|2$5d|| %3%",
prefix, prefix,
(nixCode.errPos.line + 1), (errPos.line + 1),
*nixCode.nextLineOfCode); *loc.nextLineOfCode);
} }
} }
std::ostream& operator<<(std::ostream &out, const ErrorInfo &einfo) void printAtPos(const string &prefix, const ErrPos &pos, std::ostream &out)
{
if (pos)
{
switch (pos.origin) {
case foFile: {
out << prefix << ANSI_BLUE << "at: " << ANSI_YELLOW << showErrPos(pos) <<
ANSI_BLUE << " in file: " << ANSI_NORMAL << pos.file;
break;
}
case foString: {
out << prefix << ANSI_BLUE << "at: " << ANSI_YELLOW << showErrPos(pos) <<
ANSI_BLUE << " from string" << ANSI_NORMAL;
break;
}
case foStdin: {
out << prefix << ANSI_BLUE << "at: " << ANSI_YELLOW << showErrPos(pos) <<
ANSI_BLUE << " from stdin" << ANSI_NORMAL;
break;
}
default:
throw Error("invalid FileOrigin in errPos");
}
}
}
std::ostream& showErrorInfo(std::ostream &out, const ErrorInfo &einfo, bool showTrace)
{ {
auto errwidth = std::max<size_t>(getWindowSize().second, 20); auto errwidth = std::max<size_t>(getWindowSize().second, 20);
string prefix = ""; string prefix = "";
@ -158,8 +267,12 @@ std::ostream& operator<<(std::ostream &out, const ErrorInfo &einfo)
} }
} }
auto ndl = prefix.length() + levelString.length() + 3 + einfo.name.length() + einfo.programName.value_or("").length(); auto ndl = prefix.length()
auto dashwidth = ndl > (errwidth - 3) ? 3 : errwidth - ndl; + filterANSIEscapes(levelString, true).length()
+ 7
+ einfo.name.length()
+ einfo.programName.value_or("").length();
auto dashwidth = std::max<int>(errwidth - ndl, 3);
std::string dashes(dashwidth, '-'); std::string dashes(dashwidth, '-');
@ -179,16 +292,9 @@ std::ostream& operator<<(std::ostream &out, const ErrorInfo &einfo)
einfo.programName.value_or("")); einfo.programName.value_or(""));
bool nl = false; // intersperse newline between sections. bool nl = false; // intersperse newline between sections.
if (einfo.nixCode.has_value()) { if (einfo.errPos.has_value() && (*einfo.errPos)) {
if (einfo.nixCode->errPos.file != "") { out << prefix << std::endl;
// filename, line, column. printAtPos(prefix, *einfo.errPos, out);
out << std::endl << fmt("%1%in file: " ANSI_BLUE "%2% %3%" ANSI_NORMAL,
prefix,
einfo.nixCode->errPos.file,
showErrPos(einfo.nixCode->errPos));
} else {
out << std::endl << fmt("%1%from command line argument", prefix);
}
nl = true; nl = true;
} }
@ -200,13 +306,17 @@ std::ostream& operator<<(std::ostream &out, const ErrorInfo &einfo)
nl = true; nl = true;
} }
if (einfo.errPos.has_value() && (*einfo.errPos)) {
auto loc = getCodeLines(*einfo.errPos);
// lines of code. // lines of code.
if (einfo.nixCode.has_value() && einfo.nixCode->errLineOfCode.has_value()) { if (loc.has_value()) {
if (nl) if (nl)
out << std::endl << prefix; out << std::endl << prefix;
printCodeLines(out, prefix, *einfo.nixCode); printCodeLines(out, prefix, *einfo.errPos, *loc);
nl = true; nl = true;
} }
}
// hint // hint
if (einfo.hint.has_value()) { if (einfo.hint.has_value()) {
@ -216,6 +326,54 @@ std::ostream& operator<<(std::ostream &out, const ErrorInfo &einfo)
nl = true; nl = true;
} }
// traces
if (showTrace && !einfo.traces.empty())
{
const string tracetitle(" show-trace ");
int fill = errwidth - tracetitle.length();
int lw = 0;
int rw = 0;
const int min_dashes = 3;
if (fill > min_dashes * 2) {
if (fill % 2 != 0) {
lw = fill / 2;
rw = lw + 1;
}
else
{
lw = rw = fill / 2;
}
}
else
lw = rw = min_dashes;
if (nl)
out << std::endl << prefix;
out << ANSI_BLUE << std::string(lw, '-') << tracetitle << std::string(rw, '-') << ANSI_NORMAL;
for (auto iter = einfo.traces.rbegin(); iter != einfo.traces.rend(); ++iter)
{
out << std::endl << prefix;
out << ANSI_BLUE << "trace: " << ANSI_NORMAL << iter->hint.str();
if (iter->pos.has_value() && (*iter->pos)) {
auto pos = iter->pos.value();
out << std::endl << prefix;
printAtPos(prefix, pos, out);
auto loc = getCodeLines(pos);
if (loc.has_value())
{
out << std::endl << prefix;
printCodeLines(out, prefix, pos, *loc);
out << std::endl << prefix;
}
}
}
}
return out; return out;
} }
} }

74
src/libutil/error.hh
View file

@ -1,8 +1,8 @@
#pragma once #pragma once
#include "ref.hh" #include "ref.hh"
#include "types.hh" #include "types.hh"
#include "fmt.hh"
#include <cstring> #include <cstring>
#include <list> #include <list>
@ -10,7 +10,9 @@
#include <map> #include <map>
#include <optional> #include <optional>
#include "fmt.hh" #include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
/* Before 4.7, gcc's std::exception uses empty throw() specifiers for /* Before 4.7, gcc's std::exception uses empty throw() specifiers for
* its (virtual) destructor and what() in c++11 mode, in violation of spec * its (virtual) destructor and what() in c++11 mode, in violation of spec
@ -25,20 +27,20 @@ namespace nix {
/* /*
This file defines two main structs/classes used in nix error handling. This file defines two main structs/classes used in nix error handling.
ErrorInfo provides a standard payload of error information, with conversion to string ErrorInfo provides a standard payload of error information, with conversion to string
happening in the logger rather than at the call site. happening in the logger rather than at the call site.
BaseError is the ancestor of nix specific exceptions (and Interrupted), and contains BaseError is the ancestor of nix specific exceptions (and Interrupted), and contains
an ErrorInfo. an ErrorInfo.
ErrorInfo structs are sent to the logger as part of an exception, or directly with the ErrorInfo structs are sent to the logger as part of an exception, or directly with the
logError or logWarning macros. logError or logWarning macros.
See the error-demo.cc program for usage examples. See the error-demo.cc program for usage examples.
*/ */
typedef enum { typedef enum {
lvlError = 0, lvlError = 0,
@ -50,11 +52,25 @@ typedef enum {
lvlVomit lvlVomit
} Verbosity; } Verbosity;
typedef enum {
foFile,
foStdin,
foString
} FileOrigin;
// the lines of code surrounding an error.
struct LinesOfCode {
std::optional<string> prevLineOfCode;
std::optional<string> errLineOfCode;
std::optional<string> nextLineOfCode;
};
// ErrPos indicates the location of an error in a nix file. // ErrPos indicates the location of an error in a nix file.
struct ErrPos { struct ErrPos {
int line = 0; int line = 0;
int column = 0; int column = 0;
string file; string file;
FileOrigin origin;
operator bool() const operator bool() const
{ {
@ -65,6 +81,7 @@ struct ErrPos {
template <class P> template <class P>
ErrPos& operator=(const P &pos) ErrPos& operator=(const P &pos)
{ {
origin = pos.origin;
line = pos.line; line = pos.line;
column = pos.column; column = pos.column;
// is file symbol null? // is file symbol null?
@ -82,11 +99,9 @@ struct ErrPos {
} }
}; };
struct NixCode { struct Trace {
ErrPos errPos; std::optional<ErrPos> pos;
std::optional<string> prevLineOfCode; hintformat hint;
std::optional<string> errLineOfCode;
std::optional<string> nextLineOfCode;
}; };
struct ErrorInfo { struct ErrorInfo {
@ -94,19 +109,19 @@ struct ErrorInfo {
string name; string name;
string description; string description;
std::optional<hintformat> hint; std::optional<hintformat> hint;
std::optional<NixCode> nixCode; std::optional<ErrPos> errPos;
std::list<Trace> traces;
static std::optional<string> programName; static std::optional<string> programName;
}; };
std::ostream& operator<<(std::ostream &out, const ErrorInfo &einfo); std::ostream& showErrorInfo(std::ostream &out, const ErrorInfo &einfo, bool showTrace);
/* BaseError should generally not be caught, as it has Interrupted as /* BaseError should generally not be caught, as it has Interrupted as
a subclass. Catch Error instead. */ a subclass. Catch Error instead. */
class BaseError : public std::exception class BaseError : public std::exception
{ {
protected: protected:
string prefix_; // used for location traces etc.
mutable ErrorInfo err; mutable ErrorInfo err;
mutable std::optional<string> what_; mutable std::optional<string> what_;
@ -117,7 +132,7 @@ public:
template<typename... Args> template<typename... Args>
BaseError(unsigned int status, const Args & ... args) BaseError(unsigned int status, const Args & ... args)
: err { .level = lvlError, : err {.level = lvlError,
.hint = hintfmt(args...) .hint = hintfmt(args...)
} }
, status(status) , status(status)
@ -125,13 +140,13 @@ public:
template<typename... Args> template<typename... Args>
BaseError(const std::string & fs, const Args & ... args) BaseError(const std::string & fs, const Args & ... args)
: err { .level = lvlError, : err {.level = lvlError,
.hint = hintfmt(fs, args...) .hint = hintfmt(fs, args...)
} }
{ } { }
BaseError(hintformat hint) BaseError(hintformat hint)
: err { .level = lvlError, : err {.level = lvlError,
.hint = hint .hint = hint
} }
{ } { }
@ -154,10 +169,17 @@ public:
#endif #endif
const string & msg() const { return calcWhat(); } const string & msg() const { return calcWhat(); }
const string & prefix() const { return prefix_; }
BaseError & addPrefix(const FormatOrString & fs);
const ErrorInfo & info() { calcWhat(); return err; } const ErrorInfo & info() { calcWhat(); return err; }
template<typename... Args>
BaseError & addTrace(std::optional<ErrPos> e, const string &fs, const Args & ... args)
{
return addTrace(e, hintfmt(fs, args...));
}
BaseError & addTrace(std::optional<ErrPos> e, hintformat hint);
bool hasTrace() const { return !err.traces.empty(); }
}; };
#define MakeError(newClass, superClass) \ #define MakeError(newClass, superClass) \
@ -177,7 +199,7 @@ public:
template<typename... Args> template<typename... Args>
SysError(const Args & ... args) SysError(const Args & ... args)
:Error("") : Error("")
{ {
errNo = errno; errNo = errno;
auto hf = hintfmt(args...); auto hf = hintfmt(args...);

9
src/libutil/logging.cc
View file

@ -1,5 +1,6 @@
#include "logging.hh" #include "logging.hh"
#include "util.hh" #include "util.hh"
#include "config.hh"
#include <atomic> #include <atomic>
#include <nlohmann/json.hpp> #include <nlohmann/json.hpp>
@ -7,6 +8,10 @@
namespace nix { namespace nix {
LoggerSettings loggerSettings;
static GlobalConfig::Register r1(&loggerSettings);
static thread_local ActivityId curActivity = 0; static thread_local ActivityId curActivity = 0;
ActivityId getCurActivity() ActivityId getCurActivity()
@ -72,7 +77,7 @@ public:
void logEI(const ErrorInfo & ei) override void logEI(const ErrorInfo & ei) override
{ {
std::stringstream oss; std::stringstream oss;
oss << ei; showErrorInfo(oss, ei, loggerSettings.showTrace.get());
log(ei.level, oss.str()); log(ei.level, oss.str());
} }
@ -173,7 +178,7 @@ struct JSONLogger : Logger {
void logEI(const ErrorInfo & ei) override void logEI(const ErrorInfo & ei) override
{ {
std::ostringstream oss; std::ostringstream oss;
oss << ei; showErrorInfo(oss, ei, loggerSettings.showTrace.get());
nlohmann::json json; nlohmann::json json;
json["action"] = "msg"; json["action"] = "msg";

11
src/libutil/logging.hh
View file

@ -2,6 +2,7 @@
#include "types.hh" #include "types.hh"
#include "error.hh" #include "error.hh"
#include "config.hh"
namespace nix { namespace nix {
@ -34,6 +35,16 @@ typedef enum {
typedef uint64_t ActivityId; typedef uint64_t ActivityId;
struct LoggerSettings : Config
{
Setting<bool> showTrace{this,
false,
"show-trace",
"Whether to show a stack trace on evaluation errors."};
};
extern LoggerSettings loggerSettings;
class Logger class Logger
{ {
friend struct Activity; friend struct Activity;

115
src/libutil/tests/logging.cc
View file

@ -11,6 +11,13 @@ namespace nix {
* logEI * logEI
* --------------------------------------------------------------------------*/ * --------------------------------------------------------------------------*/
const char *test_file =
"previous line of code\n"
"this is the problem line of code\n"
"next line of code\n";
const char *one_liner =
"this is the other problem line of code";
TEST(logEI, catpuresBasicProperties) { TEST(logEI, catpuresBasicProperties) {
MakeError(TestError, Error); MakeError(TestError, Error);
@ -137,7 +144,6 @@ namespace nix {
* logError * logError
* --------------------------------------------------------------------------*/ * --------------------------------------------------------------------------*/
TEST(logError, logErrorWithoutHintOrCode) { TEST(logError, logErrorWithoutHintOrCode) {
testing::internal::CaptureStderr(); testing::internal::CaptureStderr();
@ -152,7 +158,7 @@ namespace nix {
TEST(logError, logErrorWithPreviousAndNextLinesOfCode) { TEST(logError, logErrorWithPreviousAndNextLinesOfCode) {
SymbolTable testTable; SymbolTable testTable;
auto problem_file = testTable.create("myfile.nix"); auto problem_file = testTable.create(test_file);
testing::internal::CaptureStderr(); testing::internal::CaptureStderr();
@ -162,21 +168,16 @@ namespace nix {
.hint = hintfmt("this hint has %1% templated %2%!!", .hint = hintfmt("this hint has %1% templated %2%!!",
"yellow", "yellow",
"values"), "values"),
.nixCode = NixCode { .errPos = Pos(foString, problem_file, 02, 13),
.errPos = Pos(problem_file, 40, 13), });
.prevLineOfCode = "previous line of code",
.errLineOfCode = "this is the problem line of code",
.nextLineOfCode = "next line of code",
}});
auto str = testing::internal::GetCapturedStderr(); auto str = testing::internal::GetCapturedStderr();
ASSERT_STREQ(str.c_str(), "\x1B[31;1merror:\x1B[0m\x1B[34;1m --- error name --- error-unit-test\x1B[0m\nin file: \x1B[34;1mmyfile.nix (40:13)\x1B[0m\n\nerror with code lines\n\n 39| previous line of code\n 40| this is the problem line of code\n | \x1B[31;1m^\x1B[0m\n 41| next line of code\n\nthis hint has \x1B[33;1myellow\x1B[0m templated \x1B[33;1mvalues\x1B[0m!!\n"); ASSERT_STREQ(str.c_str(), "\x1B[31;1merror:\x1B[0m\x1B[34;1m --- error name --- error-unit-test\x1B[0m\n\x1B[34;1mat: \x1B[33;1m(2:13)\x1B[34;1m from string\x1B[0m\n\nerror with code lines\n\n 1| previous line of code\n 2| this is the problem line of code\n | \x1B[31;1m^\x1B[0m\n 3| next line of code\n\nthis hint has \x1B[33;1myellow\x1B[0m templated \x1B[33;1mvalues\x1B[0m!!\n");
} }
TEST(logError, logErrorWithoutLinesOfCode) { TEST(logError, logErrorWithInvalidFile) {
SymbolTable testTable; SymbolTable testTable;
auto problem_file = testTable.create("myfile.nix"); auto problem_file = testTable.create("invalid filename");
testing::internal::CaptureStderr(); testing::internal::CaptureStderr();
logError({ logError({
@ -185,28 +186,23 @@ namespace nix {
.hint = hintfmt("this hint has %1% templated %2%!!", .hint = hintfmt("this hint has %1% templated %2%!!",
"yellow", "yellow",
"values"), "values"),
.nixCode = NixCode { .errPos = Pos(foFile, problem_file, 02, 13)
.errPos = Pos(problem_file, 40, 13) });
}});
auto str = testing::internal::GetCapturedStderr(); auto str = testing::internal::GetCapturedStderr();
ASSERT_STREQ(str.c_str(), "\x1B[31;1merror:\x1B[0m\x1B[34;1m --- error name --- error-unit-test\x1B[0m\nin file: \x1B[34;1mmyfile.nix (40:13)\x1B[0m\n\nerror without any code lines.\n\nthis hint has \x1B[33;1myellow\x1B[0m templated \x1B[33;1mvalues\x1B[0m!!\n"); ASSERT_STREQ(str.c_str(), "\x1B[31;1merror:\x1B[0m\x1B[34;1m --- SysError --- error-unit-test\x1B[0m\nopening file '\x1B[33;1minvalid filename\x1B[0m': \x1B[33;1mNo such file or directory\x1B[0m\n\x1B[31;1merror:\x1B[0m\x1B[34;1m --- error name --- error-unit-test\x1B[0m\n\x1B[34;1mat: \x1B[33;1m(2:13)\x1B[34;1m in file: \x1B[0minvalid filename\n\nerror without any code lines.\n\nthis hint has \x1B[33;1myellow\x1B[0m templated \x1B[33;1mvalues\x1B[0m!!\n");
} }
TEST(logError, logErrorWithOnlyHintAndName) { TEST(logError, logErrorWithOnlyHintAndName) {
SymbolTable testTable;
auto problem_file = testTable.create("myfile.nix");
testing::internal::CaptureStderr(); testing::internal::CaptureStderr();
logError({ logError({
.name = "error name", .name = "error name",
.hint = hintfmt("hint %1%", "only"), .hint = hintfmt("hint %1%", "only"),
.nixCode = NixCode { });
.errPos = Pos(problem_file, 40, 13)
}});
auto str = testing::internal::GetCapturedStderr(); auto str = testing::internal::GetCapturedStderr();
ASSERT_STREQ(str.c_str(), "\x1B[31;1merror:\x1B[0m\x1B[34;1m --- error name --- error-unit-test\x1B[0m\nin file: \x1B[34;1mmyfile.nix (40:13)\x1B[0m\n\nhint \x1B[33;1monly\x1B[0m\n"); ASSERT_STREQ(str.c_str(), "\x1B[31;1merror:\x1B[0m\x1B[34;1m --- error name --- error-unit-test\x1B[0m\nhint \x1B[33;1monly\x1B[0m\n");
} }
@ -219,18 +215,18 @@ namespace nix {
logWarning({ logWarning({
.name = "name", .name = "name",
.description = "error description", .description = "warning description",
.hint = hintfmt("there was a %1%", "warning"), .hint = hintfmt("there was a %1%", "warning"),
}); });
auto str = testing::internal::GetCapturedStderr(); auto str = testing::internal::GetCapturedStderr();
ASSERT_STREQ(str.c_str(), "\x1B[33;1mwarning:\x1B[0m\x1B[34;1m --- name --- error-unit-test\x1B[0m\nerror description\n\nthere was a \x1B[33;1mwarning\x1B[0m\n"); ASSERT_STREQ(str.c_str(), "\x1B[33;1mwarning:\x1B[0m\x1B[34;1m --- name --- error-unit-test\x1B[0m\nwarning description\n\nthere was a \x1B[33;1mwarning\x1B[0m\n");
} }
TEST(logWarning, logWarningWithFileLineNumAndCode) { TEST(logWarning, logWarningWithFileLineNumAndCode) {
SymbolTable testTable; SymbolTable testTable;
auto problem_file = testTable.create("myfile.nix"); auto problem_file = testTable.create(test_file);
testing::internal::CaptureStderr(); testing::internal::CaptureStderr();
@ -240,18 +236,73 @@ namespace nix {
.hint = hintfmt("this hint has %1% templated %2%!!", .hint = hintfmt("this hint has %1% templated %2%!!",
"yellow", "yellow",
"values"), "values"),
.nixCode = NixCode { .errPos = Pos(foStdin, problem_file, 2, 13),
.errPos = Pos(problem_file, 40, 13), });
.prevLineOfCode = std::nullopt,
.errLineOfCode = "this is the problem line of code",
.nextLineOfCode = std::nullopt
}});
auto str = testing::internal::GetCapturedStderr(); auto str = testing::internal::GetCapturedStderr();
ASSERT_STREQ(str.c_str(), "\x1B[33;1mwarning:\x1B[0m\x1B[34;1m --- warning name --- error-unit-test\x1B[0m\nin file: \x1B[34;1mmyfile.nix (40:13)\x1B[0m\n\nwarning description\n\n 40| this is the problem line of code\n | \x1B[31;1m^\x1B[0m\n\nthis hint has \x1B[33;1myellow\x1B[0m templated \x1B[33;1mvalues\x1B[0m!!\n"); ASSERT_STREQ(str.c_str(), "\x1B[33;1mwarning:\x1B[0m\x1B[34;1m --- warning name --- error-unit-test\x1B[0m\n\x1B[34;1mat: \x1B[33;1m(2:13)\x1B[34;1m from stdin\x1B[0m\n\nwarning description\n\n 1| previous line of code\n 2| this is the problem line of code\n | \x1B[31;1m^\x1B[0m\n 3| next line of code\n\nthis hint has \x1B[33;1myellow\x1B[0m templated \x1B[33;1mvalues\x1B[0m!!\n");
} }
/* ----------------------------------------------------------------------------
* traces
* --------------------------------------------------------------------------*/
TEST(addTrace, showTracesWithShowTrace) {
SymbolTable testTable;
auto problem_file = testTable.create(test_file);
auto oneliner_file = testTable.create(one_liner);
auto invalidfilename = testTable.create("invalid filename");
auto e = AssertionError(ErrorInfo {
.name = "wat",
.description = "show-traces",
.hint = hintfmt("it has been %1% days since our last error", "zero"),
.errPos = Pos(foString, problem_file, 2, 13),
});
e.addTrace(Pos(foStdin, oneliner_file, 1, 19), "while trying to compute %1%", 42);
e.addTrace(std::nullopt, "while doing something without a %1%", "pos");
e.addTrace(Pos(foFile, invalidfilename, 100, 1), "missing %s", "nix file");
testing::internal::CaptureStderr();
loggerSettings.showTrace.assign(true);
logError(e.info());
auto str = testing::internal::GetCapturedStderr();
ASSERT_STREQ(str.c_str(), "\x1B[31;1merror:\x1B[0m\x1B[34;1m --- SysError --- error-unit-test\x1B[0m\nopening file '\x1B[33;1minvalid filename\x1B[0m': \x1B[33;1mNo such file or directory\x1B[0m\n\x1B[31;1merror:\x1B[0m\x1B[34;1m --- AssertionError --- error-unit-test\x1B[0m\n\x1B[34;1mat: \x1B[33;1m(2:13)\x1B[34;1m from string\x1B[0m\n\nshow-traces\n\n 1| previous line of code\n 2| this is the problem line of code\n | \x1B[31;1m^\x1B[0m\n 3| next line of code\n\nit has been \x1B[33;1mzero\x1B[0m days since our last error\n\x1B[34;1m---- show-trace ----\x1B[0m\n\x1B[34;1mtrace: \x1B[0mwhile trying to compute \x1B[33;1m42\x1B[0m\n\x1B[34;1mat: \x1B[33;1m(1:19)\x1B[34;1m from stdin\x1B[0m\n\n 1| this is the other problem line of code\n | \x1B[31;1m^\x1B[0m\n\n\x1B[34;1mtrace: \x1B[0mwhile doing something without a \x1B[33;1mpos\x1B[0m\n\x1B[34;1mtrace: \x1B[0mmissing \x1B[33;1mnix file\x1B[0m\n\x1B[34;1mat: \x1B[33;1m(100:1)\x1B[34;1m in file: \x1B[0minvalid filename\n");
}
TEST(addTrace, hideTracesWithoutShowTrace) {
SymbolTable testTable;
auto problem_file = testTable.create(test_file);
auto oneliner_file = testTable.create(one_liner);
auto invalidfilename = testTable.create("invalid filename");
auto e = AssertionError(ErrorInfo {
.name = "wat",
.description = "hide traces",
.hint = hintfmt("it has been %1% days since our last error", "zero"),
.errPos = Pos(foString, problem_file, 2, 13),
});
e.addTrace(Pos(foStdin, oneliner_file, 1, 19), "while trying to compute %1%", 42);
e.addTrace(std::nullopt, "while doing something without a %1%", "pos");
e.addTrace(Pos(foFile, invalidfilename, 100, 1), "missing %s", "nix file");
testing::internal::CaptureStderr();
loggerSettings.showTrace.assign(false);
logError(e.info());
auto str = testing::internal::GetCapturedStderr();
ASSERT_STREQ(str.c_str(), "\x1B[31;1merror:\x1B[0m\x1B[34;1m --- AssertionError --- error-unit-test\x1B[0m\n\x1B[34;1mat: \x1B[33;1m(2:13)\x1B[34;1m from string\x1B[0m\n\nhide traces\n\n 1| previous line of code\n 2| this is the problem line of code\n | \x1B[31;1m^\x1B[0m\n 3| next line of code\n\nit has been \x1B[33;1mzero\x1B[0m days since our last error\n");
}
/* ---------------------------------------------------------------------------- /* ----------------------------------------------------------------------------
* hintfmt * hintfmt
* --------------------------------------------------------------------------*/ * --------------------------------------------------------------------------*/

4
src/nix-env/nix-env.cc
View file

@ -593,7 +593,7 @@ static void upgradeDerivations(Globals & globals,
} else newElems.push_back(i); } else newElems.push_back(i);
} catch (Error & e) { } catch (Error & e) {
e.addPrefix(fmt("while trying to find an upgrade for '%s':\n", i.queryName())); e.addTrace(std::nullopt, "while trying to find an upgrade for '%s'", i.queryName());
throw; throw;
} }
} }
@ -1185,7 +1185,7 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs)
} catch (AssertionError & e) { } catch (AssertionError & e) {
printMsg(lvlTalkative, "skipping derivation named '%1%' which gives an assertion failure", i.queryName()); printMsg(lvlTalkative, "skipping derivation named '%1%' which gives an assertion failure", i.queryName());
} catch (Error & e) { } catch (Error & e) {
e.addPrefix(fmt("while querying the derivation named '%1%':\n", i.queryName())); e.addTrace(std::nullopt, "while querying the derivation named '%1%'", i.queryName());
throw; throw;
} }
} }

27
src/nix-prefetch-url/nix-prefetch-url.cc
View file

@ -153,14 +153,15 @@ static int _main(int argc, char * * argv)
/* If an expected hash is given, the file may already exist in /* If an expected hash is given, the file may already exist in
the store. */ the store. */
Hash hash(ht), expectedHash(ht); std::optional<Hash> expectedHash;
Hash hash(ht);
std::optional<StorePath> storePath; std::optional<StorePath> storePath;
if (args.size() == 2) { if (args.size() == 2) {
expectedHash = Hash(args[1], ht); expectedHash = Hash(args[1], ht);
const auto recursive = unpack ? FileIngestionMethod::Recursive : FileIngestionMethod::Flat; const auto recursive = unpack ? FileIngestionMethod::Recursive : FileIngestionMethod::Flat;
storePath = store->makeFixedOutputPath(recursive, expectedHash, name); storePath = store->makeFixedOutputPath(recursive, *expectedHash, name);
if (store->isValidPath(*storePath)) if (store->isValidPath(*storePath))
hash = expectedHash; hash = *expectedHash;
else else
storePath.reset(); storePath.reset();
} }
@ -200,22 +201,12 @@ static int _main(int argc, char * * argv)
tmpFile = unpacked; tmpFile = unpacked;
} }
/* FIXME: inefficient; addToStore() will also hash const auto method = unpack ? FileIngestionMethod::Recursive : FileIngestionMethod::Flat;
this. */
hash = unpack ? hashPath(ht, tmpFile).first : hashFile(ht, tmpFile);
if (expectedHash != Hash(ht) && expectedHash != hash) auto info = store->addToStoreSlow(name, tmpFile, method, ht, expectedHash);
throw Error("hash mismatch for '%1%'", uri); storePath = info.path;
assert(info.ca);
const auto recursive = unpack ? FileIngestionMethod::Recursive : FileIngestionMethod::Flat; hash = getContentAddressHash(*info.ca);
/* Copy the file to the Nix store. FIXME: if RemoteStore
implemented addToStoreFromDump() and downloadFile()
supported a sink, we could stream the download directly
into the Nix store. */
storePath = store->addToStore(name, tmpFile, recursive, ht);
assert(*storePath == store->makeFixedOutputPath(recursive, hash, name));
} }
stopProgressBar(); stopProgressBar();

6
src/nix-store/nix-store.cc
View file

@ -174,10 +174,10 @@ static void opAdd(Strings opFlags, Strings opArgs)
store. */ store. */
static void opAddFixed(Strings opFlags, Strings opArgs) static void opAddFixed(Strings opFlags, Strings opArgs)
{ {
auto recursive = FileIngestionMethod::Flat; auto method = FileIngestionMethod::Flat;
for (auto & i : opFlags) for (auto & i : opFlags)
if (i == "--recursive") recursive = FileIngestionMethod::Recursive; if (i == "--recursive") method = FileIngestionMethod::Recursive;
else throw UsageError("unknown flag '%1%'", i); else throw UsageError("unknown flag '%1%'", i);
if (opArgs.empty()) if (opArgs.empty())
@ -187,7 +187,7 @@ static void opAddFixed(Strings opFlags, Strings opArgs)
opArgs.pop_front(); opArgs.pop_front();
for (auto & i : opArgs) for (auto & i : opArgs)
cout << fmt("%s\n", store->printStorePath(store->addToStore(std::string(baseNameOf(i)), i, recursive, hashAlgo))); std::cout << fmt("%s\n", store->printStorePath(store->addToStoreSlow(baseNameOf(i), i, method, hashAlgo).path));
} }

6
src/nix/repl.cc
View file

@ -211,12 +211,12 @@ void NixRepl::mainLoop(const std::vector<std::string> & files)
// input without clearing the input so far. // input without clearing the input so far.
continue; continue;
} else { } else {
printMsg(lvlError, error + "%1%%2%", (settings.showTrace ? e.prefix() : ""), e.msg()); printMsg(lvlError, e.msg());
} }
} catch (Error & e) { } catch (Error & e) {
printMsg(lvlError, error + "%1%%2%", (settings.showTrace ? e.prefix() : ""), e.msg()); printMsg(lvlError, e.msg());
} catch (Interrupted & e) { } catch (Interrupted & e) {
printMsg(lvlError, error + "%1%%2%", (settings.showTrace ? e.prefix() : ""), e.msg()); printMsg(lvlError, e.msg());
} }
// We handled the current input fully, so we should clear it // We handled the current input fully, so we should clear it

2
src/nix/search.cc
View file

@ -216,7 +216,7 @@ struct CmdSearch : SourceExprCommand, MixJSON
} catch (AssertionError & e) { } catch (AssertionError & e) {
} catch (Error & e) { } catch (Error & e) {
if (!toplevel) { if (!toplevel) {
e.addPrefix(fmt("While evaluating the attribute '%s':\n", attrPath)); e.addTrace(std::nullopt, "While evaluating the attribute '%s'", attrPath);
throw; throw;
} }
} }

11
tests/misc.sh
View file

@ -16,6 +16,11 @@ nix-env --foo 2>&1 | grep "no operation"
nix-env -q --foo 2>&1 | grep "unknown flag" nix-env -q --foo 2>&1 | grep "unknown flag"
# Eval Errors. # Eval Errors.
eval_res=$(nix-instantiate --eval -E 'let a = {} // a; in a.foo' 2>&1 || true) eval_arg_res=$(nix-instantiate --eval -E 'let a = {} // a; in a.foo' 2>&1 || true)
echo $eval_res | grep "(string) (1:15)" echo $eval_arg_res | grep "at: (1:15) from string"
echo $eval_res | grep "infinite recursion encountered" echo $eval_arg_res | grep "infinite recursion encountered"
eval_stdin_res=$(echo 'let a = {} // a; in a.foo' | nix-instantiate --eval -E - 2>&1 || true)
echo $eval_stdin_res | grep "at: (1:15) from stdin"
echo $eval_stdin_res | grep "infinite recursion encountered"