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Eliminate the "store" global variable

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Also, move a few free-standing functions into StoreAPI and Derivation.

Also, introduce a non-nullable smart pointer, ref<T>, which is just a
wrapper around std::shared_ptr ensuring that the pointer is never
null. (For reference-counted values, this is better than passing a
"T&", because the latter doesn't maintain the refcount. Usually, the
caller will have a shared_ptr keeping the value alive, but that's not
always the case, e.g., when passing a reference to a std::thread via
std::bind.)
This commit is contained in:
Eelco Dolstra 2016-02-04 14:28:26 +01:00
parent 4f7824c58e
commit c10c61449f
36 changed files with 511 additions and 458 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

59
perl/lib/Nix/Store.xs
View file

@ -6,10 +6,10 @@
#undef do_open
#undef do_close
#include <store-api.hh>
#include <globals.hh>
#include <misc.hh>
#include <util.hh>
#include "derivations.hh"
#include "globals.hh"
#include "store-api.hh"
#include "util.hh"
#if HAVE_SODIUM
#include <sodium.h>
@ -19,19 +19,21 @@
using namespace nix;
void doInit()
static ref<StoreAPI> store()
{
if (!store) {
static std::shared_ptr<StoreAPI> _store;
if (!_store) {
try {
settings.processEnvironment();
settings.loadConfFile();
settings.update();
settings.lockCPU = false;
store = openStore();
_store = openStore();
} catch (Error & e) {
croak("%s", e.what());
}
}
return ref<StoreAPI>(_store);
}
@ -45,7 +47,7 @@ PROTOTYPES: ENABLE
void init()
CODE:
doInit();
store();
void setVerbosity(int level)
@ -56,8 +58,7 @@ void setVerbosity(int level)
int isValidPath(char * path)
CODE:
try {
doInit();
RETVAL = store->isValidPath(path);
RETVAL = store()->isValidPath(path);
} catch (Error & e) {
croak("%s", e.what());
}
@ -68,9 +69,8 @@ int isValidPath(char * path)
SV * queryReferences(char * path)
PPCODE:
try {
doInit();
PathSet paths;
store->queryReferences(path, paths);
store()->queryReferences(path, paths);
for (PathSet::iterator i = paths.begin(); i != paths.end(); ++i)
XPUSHs(sv_2mortal(newSVpv(i->c_str(), 0)));
} catch (Error & e) {
@ -81,8 +81,7 @@ SV * queryReferences(char * path)
SV * queryPathHash(char * path)
PPCODE:
try {
doInit();
Hash hash = store->queryPathHash(path);
Hash hash = store()->queryPathHash(path);
string s = "sha256:" + printHash32(hash);
XPUSHs(sv_2mortal(newSVpv(s.c_str(), 0)));
} catch (Error & e) {
@ -93,8 +92,7 @@ SV * queryPathHash(char * path)
SV * queryDeriver(char * path)
PPCODE:
try {
doInit();
Path deriver = store->queryDeriver(path);
Path deriver = store()->queryDeriver(path);
if (deriver == "") XSRETURN_UNDEF;
XPUSHs(sv_2mortal(newSVpv(deriver.c_str(), 0)));
} catch (Error & e) {
@ -105,8 +103,7 @@ SV * queryDeriver(char * path)
SV * queryPathInfo(char * path, int base32)
PPCODE:
try {
doInit();
ValidPathInfo info = store->queryPathInfo(path);
ValidPathInfo info = store()->queryPathInfo(path);
if (info.deriver == "")
XPUSHs(&PL_sv_undef);
else
@ -127,8 +124,7 @@ SV * queryPathInfo(char * path, int base32)
SV * queryPathFromHashPart(char * hashPart)
PPCODE:
try {
doInit();
Path path = store->queryPathFromHashPart(hashPart);
Path path = store()->queryPathFromHashPart(hashPart);
XPUSHs(sv_2mortal(newSVpv(path.c_str(), 0)));
} catch (Error & e) {
croak("%s", e.what());
@ -138,10 +134,9 @@ SV * queryPathFromHashPart(char * hashPart)
SV * computeFSClosure(int flipDirection, int includeOutputs, ...)
PPCODE:
try {
doInit();
PathSet paths;
for (int n = 2; n < items; ++n)
computeFSClosure(*store, SvPV_nolen(ST(n)), paths, flipDirection, includeOutputs);
store()->computeFSClosure(SvPV_nolen(ST(n)), paths, flipDirection, includeOutputs);
for (PathSet::iterator i = paths.begin(); i != paths.end(); ++i)
XPUSHs(sv_2mortal(newSVpv(i->c_str(), 0)));
} catch (Error & e) {
@ -152,10 +147,9 @@ SV * computeFSClosure(int flipDirection, int includeOutputs, ...)
SV * topoSortPaths(...)
PPCODE:
try {
doInit();
PathSet paths;
for (int n = 0; n < items; ++n) paths.insert(SvPV_nolen(ST(n)));
Paths sorted = topoSortPaths(*store, paths);
Paths sorted = store()->topoSortPaths(paths);
for (Paths::iterator i = sorted.begin(); i != sorted.end(); ++i)
XPUSHs(sv_2mortal(newSVpv(i->c_str(), 0)));
} catch (Error & e) {
@ -166,7 +160,6 @@ SV * topoSortPaths(...)
SV * followLinksToStorePath(char * path)
CODE:
try {
doInit();
RETVAL = newSVpv(followLinksToStorePath(path).c_str(), 0);
} catch (Error & e) {
croak("%s", e.what());
@ -178,11 +171,10 @@ SV * followLinksToStorePath(char * path)
void exportPaths(int fd, int sign, ...)
PPCODE:
try {
doInit();
Paths paths;
for (int n = 2; n < items; ++n) paths.push_back(SvPV_nolen(ST(n)));
FdSink sink(fd);
exportPaths(*store, paths, sign, sink);
store()->exportPaths(paths, sign, sink);
} catch (Error & e) {
croak("%s", e.what());
}
@ -191,9 +183,8 @@ void exportPaths(int fd, int sign, ...)
void importPaths(int fd)
PPCODE:
try {
doInit();
FdSource source(fd);
store->importPaths(false, source);
store()->importPaths(false, source);
} catch (Error & e) {
croak("%s", e.what());
}
@ -292,8 +283,7 @@ int checkSignature(SV * publicKey_, SV * sig_, char * msg)
SV * addToStore(char * srcPath, int recursive, char * algo)
PPCODE:
try {
doInit();
Path path = store->addToStore(baseNameOf(srcPath), srcPath, recursive, parseHashType(algo));
Path path = store()->addToStore(baseNameOf(srcPath), srcPath, recursive, parseHashType(algo));
XPUSHs(sv_2mortal(newSVpv(path.c_str(), 0)));
} catch (Error & e) {
croak("%s", e.what());
@ -303,7 +293,6 @@ SV * addToStore(char * srcPath, int recursive, char * algo)
SV * makeFixedOutputPath(int recursive, char * algo, char * hash, char * name)
PPCODE:
try {
doInit();
HashType ht = parseHashType(algo);
Path path = makeFixedOutputPath(recursive, ht,
parseHash16or32(ht, hash), name);
@ -318,8 +307,7 @@ SV * derivationFromPath(char * drvPath)
HV *hash;
CODE:
try {
doInit();
Derivation drv = derivationFromPath(*store, drvPath);
Derivation drv = store()->derivationFromPath(drvPath);
hash = newHV();
HV * outputs = newHV();
@ -361,8 +349,7 @@ SV * derivationFromPath(char * drvPath)
void addTempRoot(char * storePath)
PPCODE:
try {
doInit();
store->addTempRoot(storePath);
store()->addTempRoot(storePath);
} catch (Error & e) {
croak("%s", e.what());
}

2
src/libexpr/common-opts.cc
View file

@ -55,7 +55,7 @@ bool parseSearchPathArg(Strings::iterator & i,
Path lookupFileArg(EvalState & state, string s)
{
if (isUri(s))
return downloadFileCached(s, true);
return downloadFileCached(state.store, s, true);
else if (s.size() > 2 && s.at(0) == '<' && s.at(s.size() - 1) == '>') {
Path p = s.substr(1, s.size() - 2);
return state.findFile(p);

2
src/libexpr/common-opts.hh
View file

@ -4,6 +4,8 @@
namespace nix {
class StoreAPI;
/* Some common option parsing between nix-env and nix-instantiate. */
bool parseAutoArgs(Strings::iterator & i,
const Strings::iterator & argsEnd, std::map<string, string> & res);

3
src/libexpr/eval.cc
View file

@ -244,7 +244,7 @@ static Strings parseNixPath(const string & in)
}
EvalState::EvalState(const Strings & _searchPath)
EvalState::EvalState(const Strings & _searchPath, ref<StoreAPI> store)
: sWith(symbols.create("<with>"))
, sOutPath(symbols.create("outPath"))
, sDrvPath(symbols.create("drvPath"))
@ -262,6 +262,7 @@ EvalState::EvalState(const Strings & _searchPath)
, sColumn(symbols.create("column"))
, sFunctor(symbols.create("__functor"))
, sToString(symbols.create("__toString"))
, store(store)
, baseEnv(allocEnv(128))
, staticBaseEnv(false, 0)
{

10
src/libexpr/eval.hh
View file

@ -16,6 +16,7 @@
namespace nix {
class StoreAPI;
class EvalState;
@ -82,6 +83,8 @@ public:
Value vEmptySet;
const ref<StoreAPI> store;
private:
SrcToStore srcToStore;
@ -97,7 +100,7 @@ private:
public:
EvalState(const Strings & _searchPath);
EvalState(const Strings & _searchPath, ref<StoreAPI> store);
~EvalState();
void addToSearchPath(const string & s, bool warn = false);
@ -240,6 +243,8 @@ public:
/* Print statistics. */
void printStats();
void realiseContext(const PathSet & context);
private:
unsigned long nrEnvs = 0;
@ -290,7 +295,4 @@ struct InvalidPathError : EvalError
#endif
};
/* Realise all paths in `context' */
void realiseContext(const PathSet & context);
}

2
src/libexpr/parser.y
View file

@ -603,7 +603,7 @@ void EvalState::addToSearchPath(const string & s, bool warn)
}
if (isUri(path))
path = downloadFileCached(path, true);
path = downloadFileCached(store, path, true);
path = absPath(path);
if (pathExists(path)) {

61
src/libexpr/primops.cc
View file

@ -1,15 +1,15 @@
#include "eval.hh"
#include "misc.hh"
#include "globals.hh"
#include "store-api.hh"
#include "util.hh"
#include "archive.hh"
#include "value-to-xml.hh"
#include "value-to-json.hh"
#include "derivations.hh"
#include "download.hh"
#include "eval-inline.hh"
#include "eval.hh"
#include "globals.hh"
#include "json-to-value.hh"
#include "names.hh"
#include "eval-inline.hh"
#include "download.hh"
#include "store-api.hh"
#include "util.hh"
#include "value-to-json.hh"
#include "value-to-xml.hh"
#include <sys/types.h>
#include <sys/stat.h>
@ -43,7 +43,7 @@ std::pair<string, string> decodeContext(const string & s)
InvalidPathError::InvalidPathError(const Path & path) :
EvalError(format("path ‘%1%’ is not valid") % path), path(path) {}
void realiseContext(const PathSet & context)
void EvalState::realiseContext(const PathSet & context)
{
PathSet drvs;
for (auto & i : context) {
@ -52,16 +52,14 @@ void realiseContext(const PathSet & context)
assert(isStorePath(ctx));
if (!store->isValidPath(ctx))
throw InvalidPathError(ctx);
if (!decoded.second.empty() && isDerivation(ctx))
if (!decoded.second.empty() && nix::isDerivation(ctx))
drvs.insert(decoded.first + "!" + decoded.second);
}
if (!drvs.empty()) {
/* For performance, prefetch all substitute info. */
PathSet willBuild, willSubstitute, unknown;
unsigned long long downloadSize, narSize;
queryMissing(*store, drvs,
willBuild, willSubstitute, unknown, downloadSize, narSize);
store->queryMissing(drvs, willBuild, willSubstitute, unknown, downloadSize, narSize);
store->buildPaths(drvs);
}
}
@ -75,7 +73,7 @@ static void prim_scopedImport(EvalState & state, const Pos & pos, Value * * args
Path path = state.coerceToPath(pos, *args[1], context);
try {
realiseContext(context);
state.realiseContext(context);
} catch (InvalidPathError & e) {
throw EvalError(format("cannot import ‘%1%’, since path ‘%2%’ is not valid, at %3%")
% path % e.path % pos);
@ -83,7 +81,7 @@ static void prim_scopedImport(EvalState & state, const Pos & pos, Value * * args
path = state.checkSourcePath(path);
if (isStorePath(path) && store->isValidPath(path) && isDerivation(path)) {
if (isStorePath(path) && state.store->isValidPath(path) && isDerivation(path)) {
Derivation drv = readDerivation(path);
Value & w = *state.allocValue();
state.mkAttrs(w, 3 + drv.outputs.size());
@ -145,7 +143,7 @@ static void prim_importNative(EvalState & state, const Pos & pos, Value * * args
Path path = state.coerceToPath(pos, *args[0], context);
try {
realiseContext(context);
state.realiseContext(context);
} catch (InvalidPathError & e) {
throw EvalError(format("cannot import ‘%1%’, since path ‘%2%’ is not valid, at %3%")
% path % e.path % pos);
@ -560,11 +558,12 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
runs. */
if (path.at(0) == '=') {
/* !!! This doesn't work if readOnlyMode is set. */
PathSet refs; computeFSClosure(*store, string(path, 1), refs);
PathSet refs;
state.store->computeFSClosure(string(path, 1), refs);
for (auto & j : refs) {
drv.inputSrcs.insert(j);
if (isDerivation(j))
drv.inputDrvs[j] = store->queryDerivationOutputNames(j);
drv.inputDrvs[j] = state.store->queryDerivationOutputNames(j);
}
}
@ -581,7 +580,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
/* Handle derivation contexts returned by
‘builtins.storePath’. */
else if (isDerivation(path))
drv.inputDrvs[path] = store->queryDerivationOutputNames(path);
drv.inputDrvs[path] = state.store->queryDerivationOutputNames(path);
/* Otherwise it's a source file. */
else
@ -630,7 +629,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
/* Use the masked derivation expression to compute the output
path. */
Hash h = hashDerivationModulo(*store, drv);
Hash h = hashDerivationModulo(*state.store, drv);
for (auto & i : drv.outputs)
if (i.second.path == "") {
@ -641,7 +640,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
}
/* Write the resulting term into the Nix store directory. */
Path drvPath = writeDerivation(*store, drv, drvName, state.repair);
Path drvPath = writeDerivation(state.store, drv, drvName, state.repair);
printMsg(lvlChatty, format("instantiated ‘%1%’ -> ‘%2%’")
% drvName % drvPath);
@ -649,7 +648,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
/* Optimisation, but required in read-only mode! because in that
case we don't actually write store derivations, so we can't
read them later. */
drvHashes[drvPath] = hashDerivationModulo(*store, drv);
drvHashes[drvPath] = hashDerivationModulo(*state.store, drv);
state.mkAttrs(v, 1 + drv.outputs.size());
mkString(*state.allocAttr(v, state.sDrvPath), drvPath, singleton<PathSet>("=" + drvPath));
@ -695,7 +694,7 @@ static void prim_storePath(EvalState & state, const Pos & pos, Value * * args, V
throw EvalError(format("path ‘%1%’ is not in the Nix store, at %2%") % path % pos);
Path path2 = toStorePath(path);
if (!settings.readOnlyMode)
store->ensurePath(path2);
state.store->ensurePath(path2);
context.insert(path2);
mkString(v, path, context);
}
@ -745,7 +744,7 @@ static void prim_readFile(EvalState & state, const Pos & pos, Value * * args, Va
PathSet context;
Path path = state.coerceToPath(pos, *args[0], context);
try {
realiseContext(context);
state.realiseContext(context);
} catch (InvalidPathError & e) {
throw EvalError(format("cannot read ‘%1%’, since path ‘%2%’ is not valid, at %3%")
% path % e.path % pos);
@ -786,7 +785,7 @@ static void prim_findFile(EvalState & state, const Pos & pos, Value * * args, Va
string path = state.forceStringNoCtx(*args[1], pos);
try {
realiseContext(context);
state.realiseContext(context);
} catch (InvalidPathError & e) {
throw EvalError(format("cannot find ‘%1%’, since path ‘%2%’ is not valid, at %3%")
% path % e.path % pos);
@ -801,7 +800,7 @@ static void prim_readDir(EvalState & state, const Pos & pos, Value * * args, Val
PathSet ctx;
Path path = state.coerceToPath(pos, *args[0], ctx);
try {
realiseContext(ctx);
state.realiseContext(ctx);
} catch (InvalidPathError & e) {
throw EvalError(format("cannot read ‘%1%’, since path ‘%2%’ is not valid, at %3%")
% path % e.path % pos);
@ -879,13 +878,13 @@ static void prim_toFile(EvalState & state, const Pos & pos, Value * * args, Valu
if (path.at(0) != '~')
throw EvalError(format("in ‘toFile’: the file ‘%1%’ cannot refer to derivation outputs, at %2%") % name % pos);
path = string(path, 1);
}
}
refs.insert(path);
}
Path storePath = settings.readOnlyMode
? computeStorePathForText(name, contents, refs)
: store->addTextToStore(name, contents, refs, state.repair);
: state.store->addTextToStore(name, contents, refs, state.repair);
/* Note: we don't need to add `context' to the context of the
result, since `storePath' itself has references to the paths
@ -951,7 +950,7 @@ static void prim_filterSource(EvalState & state, const Pos & pos, Value * * args
Path dstPath = settings.readOnlyMode
? computeStorePathForPath(path, true, htSHA256, filter).first
: store->addToStore(baseNameOf(path), path, true, htSHA256, filter, state.repair);
: state.store->addToStore(baseNameOf(path), path, true, htSHA256, filter, state.repair);
mkString(v, dstPath, singleton<PathSet>(dstPath));
}
@ -1678,7 +1677,7 @@ void fetch(EvalState & state, const Pos & pos, Value * * args, Value & v,
} else
url = state.forceStringNoCtx(*args[0], pos);
Path res = downloadFileCached(url, unpack);
Path res = downloadFileCached(state.store, url, unpack);
mkString(v, res, PathSet({res}));
}

9
src/libmain/shared.cc
View file

@ -4,7 +4,6 @@
#include "globals.hh"
#include "store-api.hh"
#include "util.hh"
#include "misc.hh"
#include <iostream>
#include <cctype>
@ -47,22 +46,22 @@ void printGCWarning()
}
void printMissing(StoreAPI & store, const PathSet & paths)
void printMissing(ref<StoreAPI> store, const PathSet & paths)
{
unsigned long long downloadSize, narSize;
PathSet willBuild, willSubstitute, unknown;
queryMissing(store, paths, willBuild, willSubstitute, unknown, downloadSize, narSize);
store->queryMissing(paths, willBuild, willSubstitute, unknown, downloadSize, narSize);
printMissing(store, willBuild, willSubstitute, unknown, downloadSize, narSize);
}
void printMissing(StoreAPI & store, const PathSet & willBuild,
void printMissing(ref<StoreAPI> store, const PathSet & willBuild,
const PathSet & willSubstitute, const PathSet & unknown,
unsigned long long downloadSize, unsigned long long narSize)
{
if (!willBuild.empty()) {
printMsg(lvlInfo, format("these derivations will be built:"));
Paths sorted = topoSortPaths(store, willBuild);
Paths sorted = store->topoSortPaths(willBuild);
reverse(sorted.begin(), sorted.end());
for (auto & i : sorted)
printMsg(lvlInfo, format(" %1%") % i);

8
src/libmain/shared.hh
View file

@ -19,8 +19,6 @@ public:
Exit(int status) : status(status) { }
};
class StoreAPI;
int handleExceptions(const string & programName, std::function<void()> fun);
void initNix();
@ -33,9 +31,11 @@ void printVersion(const string & programName);
/* Ugh. No better place to put this. */
void printGCWarning();
void printMissing(StoreAPI & store, const PathSet & paths);
class StoreAPI;
void printMissing(StoreAPI & store, const PathSet & willBuild,
void printMissing(ref<StoreAPI> store, const PathSet & paths);
void printMissing(ref<StoreAPI> store, const PathSet & willBuild,
const PathSet & willSubstitute, const PathSet & unknown,
unsigned long long downloadSize, unsigned long long narSize);

85
src/libstore/build.cc
View file

@ -2,7 +2,6 @@
#include "references.hh"
#include "pathlocks.hh"
#include "misc.hh"
#include "globals.hh"
#include "local-store.hh"
#include "util.hh"
@ -906,7 +905,7 @@ DerivationGoal::DerivationGoal(const Path & drvPath, const BasicDerivation & drv
{
this->drv = std::unique_ptr<BasicDerivation>(new BasicDerivation(drv));
state = &DerivationGoal::haveDerivation;
name = (format("building of %1%") % showPaths(outputPaths(drv))).str();
name = (format("building of %1%") % showPaths(drv.outputPaths())).str();
trace("created");
/* Prevent the .chroot directory from being
@ -1018,7 +1017,7 @@ void DerivationGoal::loadDerivation()
assert(worker.store.isValidPath(drvPath));
/* Get the derivation. */
drv = std::unique_ptr<BasicDerivation>(new Derivation(derivationFromPath(worker.store, drvPath)));
drv = std::unique_ptr<BasicDerivation>(new Derivation(worker.store.derivationFromPath(drvPath)));
haveDerivation();
}
@ -1057,7 +1056,7 @@ void DerivationGoal::haveDerivation()
/* We are first going to try to create the invalid output paths
through substitutes. If that doesn't work, we'll build
them. */
if (settings.useSubstitutes && substitutesAllowed(*drv))
if (settings.useSubstitutes && drv->substitutesAllowed())
for (auto & i : invalidOutputs)
addWaitee(worker.makeSubstitutionGoal(i, buildMode == bmRepair));
@ -1138,7 +1137,7 @@ void DerivationGoal::repairClosure()
PathSet outputClosure;
for (auto & i : drv->outputs) {
if (!wantOutput(i.first, wantedOutputs)) continue;
computeFSClosure(worker.store, i.second.path, outputClosure);
worker.store.computeFSClosure(i.second.path, outputClosure);
}
/* Filter out our own outputs (which we have already checked). */
@ -1149,11 +1148,11 @@ void DerivationGoal::repairClosure()
derivation is responsible for which path in the output
closure. */
PathSet inputClosure;
if (useDerivation) computeFSClosure(worker.store, drvPath, inputClosure);
if (useDerivation) worker.store.computeFSClosure(drvPath, inputClosure);
std::map<Path, Path> outputsToDrv;
for (auto & i : inputClosure)
if (isDerivation(i)) {
Derivation drv = derivationFromPath(worker.store, i);
Derivation drv = worker.store.derivationFromPath(i);
for (auto & j : drv.outputs)
outputsToDrv[j.second.path] = i;
}
@ -1225,10 +1224,10 @@ void DerivationGoal::inputsRealised()
`i' as input paths. Only add the closures of output paths
that are specified as inputs. */
assert(worker.store.isValidPath(i.first));
Derivation inDrv = derivationFromPath(worker.store, i.first);
Derivation inDrv = worker.store.derivationFromPath(i.first);
for (auto & j : i.second)
if (inDrv.outputs.find(j) != inDrv.outputs.end())
computeFSClosure(worker.store, inDrv.outputs[j].path, inputPaths);
worker.store.computeFSClosure(inDrv.outputs[j].path, inputPaths);
else
throw Error(
format("derivation ‘%1%’ requires non-existent output ‘%2%’ from input derivation ‘%3%’")
@ -1237,7 +1236,7 @@ void DerivationGoal::inputsRealised()
/* Second, the input sources. */
for (auto & i : drv->inputSrcs)
computeFSClosure(worker.store, i, inputPaths);
worker.store.computeFSClosure(i, inputPaths);
debug(format("added input paths %1%") % showPaths(inputPaths));
@ -1260,46 +1259,6 @@ void DerivationGoal::inputsRealised()
}
static bool isBuiltin(const BasicDerivation & drv)
{
return string(drv.builder, 0, 8) == "builtin:";
}
static bool canBuildLocally(const BasicDerivation & drv)
{
return drv.platform == settings.thisSystem
|| isBuiltin(drv)
#if __linux__
|| (drv.platform == "i686-linux" && settings.thisSystem == "x86_64-linux")
|| (drv.platform == "armv6l-linux" && settings.thisSystem == "armv7l-linux")
#elif __FreeBSD__
|| (drv.platform == "i686-linux" && settings.thisSystem == "x86_64-freebsd")
|| (drv.platform == "i686-linux" && settings.thisSystem == "i686-freebsd")
#endif
;
}
static string get(const StringPairs & map, const string & key, const string & def = "")
{
StringPairs::const_iterator i = map.find(key);
return i == map.end() ? def : i->second;
}
bool willBuildLocally(const BasicDerivation & drv)
{
return get(drv.env, "preferLocalBuild") == "1" && canBuildLocally(drv);
}
bool substitutesAllowed(const BasicDerivation & drv)
{
return get(drv.env, "allowSubstitutes", "1") == "1";
}
void DerivationGoal::tryToBuild()
{
trace("trying to build");
@ -1322,7 +1281,7 @@ void DerivationGoal::tryToBuild()
can't acquire the lock, then continue; hopefully some other
goal can start a build, and if not, the main loop will sleep a
few seconds and then retry this goal. */
if (!outputLocks.lockPaths(outputPaths(*drv), "", false)) {
if (!outputLocks.lockPaths(drv->outputPaths(), "", false)) {
worker.waitForAWhile(shared_from_this());
return;
}
@ -1342,7 +1301,7 @@ void DerivationGoal::tryToBuild()
return;
}
missingPaths = outputPaths(*drv);
missingPaths = drv->outputPaths();
if (buildMode != bmCheck)
for (auto & i : validPaths) missingPaths.erase(i);
@ -1365,7 +1324,7 @@ void DerivationGoal::tryToBuild()
/* Don't do a remote build if the derivation has the attribute
`preferLocalBuild' set. Also, check and repair modes are only
supported for local builds. */
bool buildLocally = buildMode != bmNormal || willBuildLocally(*drv);
bool buildLocally = buildMode != bmNormal || drv->willBuildLocally();
/* Is the build hook willing to accept this job? */
if (!buildLocally) {
@ -1661,7 +1620,7 @@ HookReply DerivationGoal::tryBuildHook()
list it since the remote system *probably* already has it.) */
PathSet allInputs;
allInputs.insert(inputPaths.begin(), inputPaths.end());
computeFSClosure(worker.store, drvPath, allInputs);
worker.store.computeFSClosure(drvPath, allInputs);
string s;
for (auto & i : allInputs) { s += i; s += ' '; }
@ -1716,7 +1675,7 @@ void DerivationGoal::startBuilder()
startNest(nest, lvlInfo, f % showPaths(missingPaths) % curRound % nrRounds);
/* Right platform? */
if (!canBuildLocally(*drv)) {
if (!drv->canBuildLocally()) {
if (settings.printBuildTrace)
printMsg(lvlError, format("@ unsupported-platform %1% %2%") % drvPath % drv->platform);
throw Error(
@ -1873,14 +1832,14 @@ void DerivationGoal::startBuilder()
like passing all build-time dependencies of some path to a
derivation that builds a NixOS DVD image. */
PathSet paths, paths2;
computeFSClosure(worker.store, storePath, paths);
worker.store.computeFSClosure(storePath, paths);
paths2 = paths;
for (auto & j : paths2) {
if (isDerivation(j)) {
Derivation drv = derivationFromPath(worker.store, j);
Derivation drv = worker.store.derivationFromPath(j);
for (auto & k : drv.outputs)
computeFSClosure(worker.store, k.second.path, paths);
worker.store.computeFSClosure(k.second.path, paths);
}
}
@ -1944,7 +1903,7 @@ void DerivationGoal::startBuilder()
PathSet closure;
for (auto & i : dirsInChroot)
if (isInStore(i.second))
computeFSClosure(worker.store, toStorePath(i.second), closure);
worker.store.computeFSClosure(toStorePath(i.second), closure);
for (auto & i : closure)
dirsInChroot[i] = i;
@ -2212,7 +2171,7 @@ void DerivationGoal::startBuilder()
#endif
{
ProcessOptions options;
options.allowVfork = !buildUser.enabled() && !isBuiltin(*drv);
options.allowVfork = !buildUser.enabled() && !drv->isBuiltin();
pid = startProcess([&]() {
runChild();
}, options);
@ -2466,7 +2425,7 @@ void DerivationGoal::runChild()
const char *builder = "invalid";
string sandboxProfile;
if (isBuiltin(*drv)) {
if (drv->isBuiltin()) {
;
#if __APPLE__
} else if (useChroot) {
@ -2583,7 +2542,7 @@ void DerivationGoal::runChild()
writeFull(STDERR_FILENO, string("\1\n"));
/* Execute the program. This should not return. */
if (isBuiltin(*drv)) {
if (drv->isBuiltin()) {
try {
logType = ltFlat;
if (drv->builder == "builtin:fetchurl")
@ -2813,7 +2772,7 @@ void DerivationGoal::registerOutputs()
for (auto & i : references)
/* Don't call computeFSClosure on ourselves. */
if (actualPath != i)
computeFSClosure(worker.store, i, used);
worker.store.computeFSClosure(i, used);
} else
used = references;

81
src/libstore/derivations.cc
View file

@ -2,7 +2,6 @@
#include "store-api.hh"
#include "globals.hh"
#include "util.hh"
#include "misc.hh"
#include "worker-protocol.hh"
@ -27,7 +26,49 @@ void DerivationOutput::parseHashInfo(bool & recursive, HashType & hashType, Hash
}
Path writeDerivation(StoreAPI & store,
Path BasicDerivation::findOutput(const string & id) const
{
auto i = outputs.find(id);
if (i == outputs.end())
throw Error(format("derivation has no output ‘%1%’") % id);
return i->second.path;
}
bool BasicDerivation::willBuildLocally() const
{
return get(env, "preferLocalBuild") == "1" && canBuildLocally();
}
bool BasicDerivation::substitutesAllowed() const
{
return get(env, "allowSubstitutes", "1") == "1";
}
bool BasicDerivation::isBuiltin() const
{
return string(builder, 0, 8) == "builtin:";
}
bool BasicDerivation::canBuildLocally() const
{
return platform == settings.thisSystem
|| isBuiltin()
#if __linux__
|| (platform == "i686-linux" && settings.thisSystem == "x86_64-linux")
|| (platform == "armv6l-linux" && settings.thisSystem == "armv7l-linux")
#elif __FreeBSD__
|| (platform == "i686-linux" && settings.thisSystem == "x86_64-freebsd")
|| (platform == "i686-linux" && settings.thisSystem == "i686-freebsd")
#endif
;
}
Path writeDerivation(ref<StoreAPI> store,
const Derivation & drv, const string & name, bool repair)
{
PathSet references;
@ -38,10 +79,10 @@ Path writeDerivation(StoreAPI & store,
(that can be missing (of course) and should not necessarily be
held during a garbage collection). */
string suffix = name + drvExtension;
string contents = unparseDerivation(drv);
string contents = drv.unparse();
return settings.readOnlyMode
? computeStorePathForText(suffix, contents, references)
: store.addTextToStore(suffix, contents, references, repair);
: store->addTextToStore(suffix, contents, references, repair);
}
@ -149,14 +190,14 @@ static void printStrings(string & res, ForwardIterator i, ForwardIterator j)
}
string unparseDerivation(const Derivation & drv)
string Derivation::unparse() const
{
string s;
s.reserve(65536);
s += "Derive([";
bool first = true;
for (auto & i : drv.outputs) {
for (auto & i : outputs) {
if (first) first = false; else s += ',';
s += '('; printString(s, i.first);
s += ','; printString(s, i.second.path);
@ -167,7 +208,7 @@ string unparseDerivation(const Derivation & drv)
s += "],[";
first = true;
for (auto & i : drv.inputDrvs) {
for (auto & i : inputDrvs) {
if (first) first = false; else s += ',';
s += '('; printString(s, i.first);
s += ','; printStrings(s, i.second.begin(), i.second.end());
@ -175,15 +216,15 @@ string unparseDerivation(const Derivation & drv)
}
s += "],";
printStrings(s, drv.inputSrcs.begin(), drv.inputSrcs.end());
printStrings(s, inputSrcs.begin(), inputSrcs.end());
s += ','; printString(s, drv.platform);
s += ','; printString(s, drv.builder);
s += ','; printStrings(s, drv.args.begin(), drv.args.end());
s += ','; printString(s, platform);
s += ','; printString(s, builder);
s += ','; printStrings(s, args.begin(), args.end());
s += ",[";
first = true;
for (auto & i : drv.env) {
for (auto & i : env) {
if (first) first = false; else s += ',';
s += '('; printString(s, i.first);
s += ','; printString(s, i.second);
@ -202,11 +243,11 @@ bool isDerivation(const string & fileName)
}
bool isFixedOutputDrv(const Derivation & drv)
bool BasicDerivation::isFixedOutput() const
{
return drv.outputs.size() == 1 &&
drv.outputs.begin()->first == "out" &&
drv.outputs.begin()->second.hash != "";
return outputs.size() == 1 &&
outputs.begin()->first == "out" &&
outputs.begin()->second.hash != "";
}
@ -236,7 +277,7 @@ DrvHashes drvHashes;
Hash hashDerivationModulo(StoreAPI & store, Derivation drv)
{
/* Return a fixed hash for fixed-output derivations. */
if (isFixedOutputDrv(drv)) {
if (drv.isFixedOutput()) {
DerivationOutputs::const_iterator i = drv.outputs.begin();
return hashString(htSHA256, "fixed:out:"
+ i->second.hashAlgo + ":"
@ -259,7 +300,7 @@ Hash hashDerivationModulo(StoreAPI & store, Derivation drv)
}
drv.inputDrvs = inputs2;
return hashString(htSHA256, unparseDerivation(drv));
return hashString(htSHA256, drv.unparse());
}
@ -286,10 +327,10 @@ bool wantOutput(const string & output, const std::set<string> & wanted)
}
PathSet outputPaths(const BasicDerivation & drv)
PathSet BasicDerivation::outputPaths() const
{
PathSet paths;
for (auto & i : drv.outputs)
for (auto & i : outputs)
paths.insert(i.second.path);
return paths;
}

36
src/libstore/derivations.hh
View file

@ -50,11 +50,33 @@ struct BasicDerivation
StringPairs env;
virtual ~BasicDerivation() { };
/* Return the path corresponding to the output identifier `id' in
the given derivation. */
Path findOutput(const string & id) const;
bool willBuildLocally() const;
bool substitutesAllowed() const;
bool isBuiltin() const;
bool canBuildLocally() const;
/* Return true iff this is a fixed-output derivation. */
bool isFixedOutput() const;
/* Return the output paths of a derivation. */
PathSet outputPaths() const;
};
struct Derivation : BasicDerivation
{
DerivationInputs inputDrvs; /* inputs that are sub-derivations */
/* Print a derivation. */
std::string unparse() const;
};
@ -62,28 +84,22 @@ class StoreAPI;
/* Write a derivation to the Nix store, and return its path. */
Path writeDerivation(StoreAPI & store,
Path writeDerivation(ref<StoreAPI> store,
const Derivation & drv, const string & name, bool repair = false);
/* Read a derivation from a file. */
Derivation readDerivation(const Path & drvPath);
/* Print a derivation. */
string unparseDerivation(const Derivation & drv);
/* Check whether a file name ends with the extensions for
/* Check whether a file name ends with the extension for
derivations. */
bool isDerivation(const string & fileName);
/* Return true iff this is a fixed-output derivation. */
bool isFixedOutputDrv(const Derivation & drv);
Hash hashDerivationModulo(StoreAPI & store, Derivation drv);
/* Memoisation of hashDerivationModulo(). */
typedef std::map<Path, Hash> DrvHashes;
extern DrvHashes drvHashes;
extern DrvHashes drvHashes; // FIXME: global, not thread-safe
/* Split a string specifying a derivation and a set of outputs
(/nix/store/hash-foo!out1,out2,...) into the derivation path and
@ -95,8 +111,6 @@ Path makeDrvPathWithOutputs(const Path & drvPath, const std::set<string> & outpu
bool wantOutput(const string & output, const std::set<string> & wanted);
PathSet outputPaths(const BasicDerivation & drv);
struct Source;
struct Sink;

2
src/libstore/download.cc
View file

@ -188,7 +188,7 @@ DownloadResult downloadFile(string url, const DownloadOptions & options)
}
Path downloadFileCached(const string & url, bool unpack)
Path downloadFileCached(ref<StoreAPI> store, const string & url, bool unpack)
{
Path cacheDir = getEnv("XDG_CACHE_HOME", getEnv("HOME", "") + "/.cache") + "/nix/tarballs";
createDirs(cacheDir);

5
src/libstore/download.hh
View file

@ -1,6 +1,7 @@
#pragma once
#include "types.hh"
#include <string>
namespace nix {
@ -18,9 +19,11 @@ struct DownloadResult
string data, etag;
};
class StoreAPI;
DownloadResult downloadFile(string url, const DownloadOptions & options);
Path downloadFileCached(const string & url, bool unpack);
Path downloadFileCached(ref<StoreAPI> store, const string & url, bool unpack);
MakeError(DownloadError, Error)

49
src/libstore/gc.cc
View file

@ -1,5 +1,5 @@
#include "derivations.hh"
#include "globals.hh"
#include "misc.hh"
#include "local-store.hh"
#include <functional>
@ -83,7 +83,7 @@ void LocalStore::addIndirectRoot(const Path & path)
}
Path addPermRoot(StoreAPI & store, const Path & _storePath,
Path addPermRoot(ref<StoreAPI> store, const Path & _storePath,
const Path & _gcRoot, bool indirect, bool allowOutsideRootsDir)
{
Path storePath(canonPath(_storePath));
@ -101,7 +101,7 @@ Path addPermRoot(StoreAPI & store, const Path & _storePath,
if (pathExists(gcRoot) && (!isLink(gcRoot) || !isInStore(readLink(gcRoot))))
throw Error(format("cannot create symlink ‘%1%’; already exists") % gcRoot);
makeSymlink(gcRoot, storePath);
store.addIndirectRoot(gcRoot);
store->addIndirectRoot(gcRoot);
}
else {
@ -127,7 +127,7 @@ Path addPermRoot(StoreAPI & store, const Path & _storePath,
check if the root is in a directory in or linked from the
gcroots directory. */
if (settings.checkRootReachability) {
Roots roots = store.findRoots();
Roots roots = store->findRoots();
if (roots.find(gcRoot) == roots.end())
printMsg(lvlError,
format(
@ -139,7 +139,7 @@ Path addPermRoot(StoreAPI & store, const Path & _storePath,
/* Grab the global GC root, causing us to block while a GC is in
progress. This prevents the set of permanent roots from
increasing while a GC is in progress. */
store.syncWithGC();
store->syncWithGC();
return gcRoot;
}
@ -260,19 +260,16 @@ static void readTempRoots(PathSet & tempRoots, FDs & fds)
}
static void foundRoot(StoreAPI & store,
const Path & path, const Path & target, Roots & roots)
void LocalStore::findRoots(const Path & path, unsigned char type, Roots & roots)
{
Path storePath = toStorePath(target);
if (store.isValidPath(storePath))
roots[path] = storePath;
else
printMsg(lvlInfo, format("skipping invalid root from ‘%1%’ to ‘%2%’") % path % storePath);
}
auto foundRoot = [&](const Path & path, const Path & target) {
Path storePath = toStorePath(target);
if (isValidPath(storePath))
roots[path] = storePath;
else
printMsg(lvlInfo, format("skipping invalid root from ‘%1%’ to ‘%2%’") % path % storePath);
};
static void findRoots(StoreAPI & store, const Path & path, unsigned char type, Roots & roots)
{
try {
if (type == DT_UNKNOWN)
@ -280,13 +277,13 @@ static void findRoots(StoreAPI & store, const Path & path, unsigned char type, R
if (type == DT_DIR) {
for (auto & i : readDirectory(path))
findRoots(store, path + "/" + i.name, i.type, roots);
findRoots(path + "/" + i.name, i.type, roots);
}
else if (type == DT_LNK) {
Path target = readLink(path);
if (isInStore(target))
foundRoot(store, path, target, roots);
foundRoot(path, target);
/* Handle indirect roots. */
else {
@ -300,14 +297,14 @@ static void findRoots(StoreAPI & store, const Path & path, unsigned char type, R
struct stat st2 = lstat(target);
if (!S_ISLNK(st2.st_mode)) return;
Path target2 = readLink(target);
if (isInStore(target2)) foundRoot(store, target, target2, roots);
if (isInStore(target2)) foundRoot(target, target2);
}
}
}
else if (type == DT_REG) {
Path storePath = settings.nixStore + "/" + baseNameOf(path);
if (store.isValidPath(storePath))
if (isValidPath(storePath))
roots[path] = storePath;
}
@ -328,16 +325,16 @@ Roots LocalStore::findRoots()
Roots roots;
/* Process direct roots in {gcroots,manifests,profiles}. */
nix::findRoots(*this, settings.nixStateDir + "/" + gcRootsDir, DT_UNKNOWN, roots);
findRoots(settings.nixStateDir + "/" + gcRootsDir, DT_UNKNOWN, roots);
if (pathExists(settings.nixStateDir + "/manifests"))
nix::findRoots(*this, settings.nixStateDir + "/manifests", DT_UNKNOWN, roots);
nix::findRoots(*this, settings.nixStateDir + "/profiles", DT_UNKNOWN, roots);
findRoots(settings.nixStateDir + "/manifests", DT_UNKNOWN, roots);
findRoots(settings.nixStateDir + "/profiles", DT_UNKNOWN, roots);
return roots;
}
static void addAdditionalRoots(StoreAPI & store, PathSet & roots)
void LocalStore::findRuntimeRoots(PathSet & roots)
{
Path rootFinder = getEnv("NIX_ROOT_FINDER",
settings.nixLibexecDir + "/nix/find-runtime-roots.pl");
@ -353,7 +350,7 @@ static void addAdditionalRoots(StoreAPI & store, PathSet & roots)
for (auto & i : paths)
if (isInStore(i)) {
Path path = toStorePath(i);
if (roots.find(path) == roots.end() && store.isValidPath(path)) {
if (roots.find(path) == roots.end() && isValidPath(path)) {
debug(format("got additional root ‘%1%’") % path);
roots.insert(path);
}
@ -628,7 +625,7 @@ void LocalStore::collectGarbage(const GCOptions & options, GCResults & results)
to add running programs to the set of roots (to prevent them
from being garbage collected). */
if (!options.ignoreLiveness)
addAdditionalRoots(*this, state.roots);
findRuntimeRoots(state.roots);
/* Read the temporary roots. This acquires read locks on all
per-process temporary root files. So after this point no paths

4
src/libstore/local-store.cc
View file

@ -655,7 +655,7 @@ void LocalStore::checkDerivationOutputs(const Path & drvPath, const Derivation &
assert(isDerivation(drvName));
drvName = string(drvName, 0, drvName.size() - drvExtension.size());
if (isFixedOutputDrv(drv)) {
if (drv.isFixedOutput()) {
DerivationOutputs::const_iterator out = drv.outputs.find("out");
if (out == drv.outputs.end())
throw Error(format("derivation ‘%1%’ does not have an output named ‘out’") % drvPath);
@ -1335,7 +1335,7 @@ void LocalStore::registerValidPaths(const ValidPathInfos & infos)
error if a cycle is detected and roll back the
transaction. Cycles can only occur when a derivation
has multiple outputs. */
topoSortPaths(*this, paths);
topoSortPaths(paths);
txn.commit();
} end_retry_sqlite;

4
src/libstore/local-store.hh
View file

@ -303,6 +303,10 @@ private:
int openGCLock(LockType lockType);
void findRoots(const Path & path, unsigned char type, Roots & roots);
void findRuntimeRoots(PathSet & roots);
void removeUnusedLinks(const GCState & state);
void startSubstituter(const Path & substituter,

116
src/libstore/misc.cc
View file

@ -1,21 +1,21 @@
#include "misc.hh"
#include "store-api.hh"
#include "local-store.hh"
#include "derivations.hh"
#include "globals.hh"
#include "local-store.hh"
#include "store-api.hh"
namespace nix {
Derivation derivationFromPath(StoreAPI & store, const Path & drvPath)
Derivation StoreAPI::derivationFromPath(const Path & drvPath)
{
assertStorePath(drvPath);
store.ensurePath(drvPath);
ensurePath(drvPath);
return readDerivation(drvPath);
}
void computeFSClosure(StoreAPI & store, const Path & path,
void StoreAPI::computeFSClosure(const Path & path,
PathSet & paths, bool flipDirection, bool includeOutputs, bool includeDerivers)
{
if (paths.find(path) != paths.end()) return;
@ -24,50 +24,42 @@ void computeFSClosure(StoreAPI & store, const Path & path,
PathSet edges;
if (flipDirection) {
store.queryReferrers(path, edges);
queryReferrers(path, edges);
if (includeOutputs) {
PathSet derivers = store.queryValidDerivers(path);
PathSet derivers = queryValidDerivers(path);
for (auto & i : derivers)
edges.insert(i);
}
if (includeDerivers && isDerivation(path)) {
PathSet outputs = store.queryDerivationOutputs(path);
PathSet outputs = queryDerivationOutputs(path);
for (auto & i : outputs)
if (store.isValidPath(i) && store.queryDeriver(i) == path)
if (isValidPath(i) && queryDeriver(i) == path)
edges.insert(i);
}
} else {
store.queryReferences(path, edges);
queryReferences(path, edges);
if (includeOutputs && isDerivation(path)) {
PathSet outputs = store.queryDerivationOutputs(path);
PathSet outputs = queryDerivationOutputs(path);
for (auto & i : outputs)
if (store.isValidPath(i)) edges.insert(i);
if (isValidPath(i)) edges.insert(i);
}
if (includeDerivers) {
Path deriver = store.queryDeriver(path);
if (store.isValidPath(deriver)) edges.insert(deriver);
Path deriver = queryDeriver(path);
if (isValidPath(deriver)) edges.insert(deriver);
}
}
for (auto & i : edges)
computeFSClosure(store, i, paths, flipDirection, includeOutputs, includeDerivers);
computeFSClosure(i, paths, flipDirection, includeOutputs, includeDerivers);
}
Path findOutput(const Derivation & drv, string id)
{
for (auto & i : drv.outputs)
if (i.first == id) return i.second.path;
throw Error(format("derivation has no output ‘%1%’") % id);
}
void queryMissing(StoreAPI & store, const PathSet & targets,
void StoreAPI::queryMissing(const PathSet & targets,
PathSet & willBuild, PathSet & willSubstitute, PathSet & unknown,
unsigned long long & downloadSize, unsigned long long & narSize)
{
@ -105,27 +97,27 @@ void queryMissing(StoreAPI & store, const PathSet & targets,
DrvPathWithOutputs i2 = parseDrvPathWithOutputs(i);
if (isDerivation(i2.first)) {
if (!store.isValidPath(i2.first)) {
if (!isValidPath(i2.first)) {
// FIXME: we could try to substitute p.
unknown.insert(i);
continue;
}
Derivation drv = derivationFromPath(store, i2.first);
Derivation drv = derivationFromPath(i2.first);
PathSet invalid;
for (auto & j : drv.outputs)
if (wantOutput(j.first, i2.second)
&& !store.isValidPath(j.second.path))
&& !isValidPath(j.second.path))
invalid.insert(j.second.path);
if (invalid.empty()) continue;
todoDrv.insert(i);
if (settings.useSubstitutes && substitutesAllowed(drv))
if (settings.useSubstitutes && drv.substitutesAllowed())
query.insert(invalid.begin(), invalid.end());
}
else {
if (store.isValidPath(i)) continue;
if (isValidPath(i)) continue;
query.insert(i);
todoNonDrv.insert(i);
}
@ -134,20 +126,20 @@ void queryMissing(StoreAPI & store, const PathSet & targets,
todo.clear();
SubstitutablePathInfos infos;
store.querySubstitutablePathInfos(query, infos);
querySubstitutablePathInfos(query, infos);
for (auto & i : todoDrv) {
DrvPathWithOutputs i2 = parseDrvPathWithOutputs(i);
// FIXME: cache this
Derivation drv = derivationFromPath(store, i2.first);
Derivation drv = derivationFromPath(i2.first);
PathSet outputs;
bool mustBuild = false;
if (settings.useSubstitutes && substitutesAllowed(drv)) {
if (settings.useSubstitutes && drv.substitutesAllowed()) {
for (auto & j : drv.outputs) {
if (!wantOutput(j.first, i2.second)) continue;
if (!store.isValidPath(j.second.path)) {
if (!isValidPath(j.second.path)) {
if (infos.find(j.second.path) == infos.end())
mustBuild = true;
else
@ -181,38 +173,38 @@ void queryMissing(StoreAPI & store, const PathSet & targets,
}
static void dfsVisit(StoreAPI & store, const PathSet & paths,
const Path & path, PathSet & visited, Paths & sorted,
PathSet & parents)
{
if (parents.find(path) != parents.end())
throw BuildError(format("cycle detected in the references of ‘%1%’") % path);
if (visited.find(path) != visited.end()) return;
visited.insert(path);
parents.insert(path);
PathSet references;
if (store.isValidPath(path))
store.queryReferences(path, 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);
sorted.push_front(path);
parents.erase(path);
}
Paths topoSortPaths(StoreAPI & store, const PathSet & paths)
Paths StoreAPI::topoSortPaths(const PathSet & paths)
{
Paths sorted;
PathSet visited, parents;
std::function<void(const Path & path)> dfsVisit;
dfsVisit = [&](const Path & path) {
if (parents.find(path) != parents.end())
throw BuildError(format("cycle detected in the references of ‘%1%’") % path);
if (visited.find(path) != visited.end()) return;
visited.insert(path);
parents.insert(path);
PathSet references;
if (isValidPath(path))
queryReferences(path, 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(i);
sorted.push_front(path);
parents.erase(path);
};
for (auto & i : paths)
dfsVisit(store, paths, i, visited, sorted, parents);
dfsVisit(i);
return sorted;
}

40
src/libstore/misc.hh
View file

@ -1,40 +0,0 @@
#pragma once
#include "derivations.hh"
namespace nix {
/* Read a derivation, after ensuring its existence through
ensurePath(). */
Derivation derivationFromPath(StoreAPI & store, const Path & drvPath);
/* Place in `paths' the set of all store paths in the file system
closure of `storePath'; that is, all paths than can be directly or
indirectly reached from it. `paths' is not cleared. If
`flipDirection' is true, the set of paths that can reach
`storePath' is returned; that is, the closures under the
`referrers' relation instead of the `references' relation is
returned. */
void computeFSClosure(StoreAPI & store, const Path & path,
PathSet & paths, bool flipDirection = false,
bool includeOutputs = false, bool includeDerivers = false);
/* Return the path corresponding to the output identifier `id' in the
given derivation. */
Path findOutput(const Derivation & drv, string id);
/* Given a set of paths that are to be built, return the set of
derivations that will be built, and the set of output paths that
will be substituted. */
void queryMissing(StoreAPI & store, const PathSet & targets,
PathSet & willBuild, PathSet & willSubstitute, PathSet & unknown,
unsigned long long & downloadSize, unsigned long long & narSize);
bool willBuildLocally(const BasicDerivation & drv);
bool substitutesAllowed(const BasicDerivation & drv);
}

4
src/libstore/profiles.cc
View file

@ -74,7 +74,7 @@ static void makeName(const Path & profile, unsigned int num,
}
Path createGeneration(Path profile, Path outPath)
Path createGeneration(ref<StoreAPI> store, Path profile, Path outPath)
{
/* The new generation number should be higher than old the
previous ones. */
@ -108,7 +108,7 @@ Path createGeneration(Path profile, Path outPath)
user environment etc. we've just built. */
Path generation;
makeName(profile, num + 1, generation);
addPermRoot(*store, outPath, generation, false, true);
addPermRoot(store, outPath, generation, false, true);
return generation;
}

4
src/libstore/profiles.hh
View file

@ -31,7 +31,9 @@ typedef list<Generation> Generations;
profile, sorted by generation number. */
Generations findGenerations(Path profile, int & curGen);
Path createGeneration(Path profile, Path outPath);
class StoreAPI;
Path createGeneration(ref<StoreAPI> store, Path profile, Path outPath);
void deleteGeneration(const Path & profile, unsigned int gen);

13
src/libstore/store-api.cc
View file

@ -284,12 +284,12 @@ string showPaths(const PathSet & paths)
}
void exportPaths(StoreAPI & store, const Paths & paths,
void StoreAPI::exportPaths(const Paths & paths,
bool sign, Sink & sink)
{
for (auto & i : paths) {
sink << 1;
store.exportPath(i, sign, sink);
exportPath(i, sign, sink);
}
sink << 0;
}
@ -306,10 +306,7 @@ void exportPaths(StoreAPI & store, const Paths & paths,
namespace nix {
std::shared_ptr<StoreAPI> store;
std::shared_ptr<StoreAPI> openStore(bool reserveSpace)
ref<StoreAPI> openStore(bool reserveSpace)
{
enum { mDaemon, mLocal, mAuto } mode;
@ -325,8 +322,8 @@ std::shared_ptr<StoreAPI> openStore(bool reserveSpace)
}
return mode == mDaemon
? (std::shared_ptr<StoreAPI>) std::make_shared<RemoteStore>()
: std::make_shared<LocalStore>(reserveSpace);
? make_ref<StoreAPI, RemoteStore>()
: make_ref<StoreAPI, LocalStore>(reserveSpace);
}

54
src/libstore/store-api.hh
View file

@ -132,6 +132,7 @@ struct BuildResult
struct BasicDerivation;
struct Derivation;
class StoreAPI
@ -214,6 +215,10 @@ public:
virtual void exportPath(const Path & path, bool sign,
Sink & sink) = 0;
/* Export multiple paths in the format expected by ‘nix-store
--import’. */
void exportPaths(const Paths & paths, bool sign, Sink & sink);
/* Import a sequence of NAR dumps created by exportPaths() into
the Nix store. */
virtual Paths importPaths(bool requireSignature, Source & source) = 0;
@ -298,6 +303,35 @@ public:
/* Check the integrity of the Nix store. Returns true if errors
remain. */
virtual bool verifyStore(bool checkContents, bool repair) = 0;
/* Utility functions. */
/* Read a derivation, after ensuring its existence through
ensurePath(). */
Derivation derivationFromPath(const Path & drvPath);
/* Place in `paths' the set of all store paths in the file system
closure of `storePath'; that is, all paths than can be directly
or indirectly reached from it. `paths' is not cleared. If
`flipDirection' is true, the set of paths that can reach
`storePath' is returned; that is, the closures under the
`referrers' relation instead of the `references' relation is
returned. */
void computeFSClosure(const Path & path,
PathSet & paths, bool flipDirection = false,
bool includeOutputs = false, bool includeDerivers = false);
/* Given a set of paths that are to be built, return the set of
derivations that will be built, and the set of output paths
that will be substituted. */
void queryMissing(const PathSet & targets,
PathSet & willBuild, PathSet & willSubstitute, PathSet & unknown,
unsigned long long & downloadSize, unsigned long long & narSize);
/* Sort a set of paths topologically under the references
relation. If p refers to q, then p preceeds q in this list. */
Paths topoSortPaths(const PathSet & paths);
};
@ -373,23 +407,13 @@ void removeTempRoots();
/* Register a permanent GC root. */
Path addPermRoot(StoreAPI & store, const Path & storePath,
Path addPermRoot(ref<StoreAPI> store, const Path & storePath,
const Path & gcRoot, bool indirect, bool allowOutsideRootsDir = false);
/* Sort a set of paths topologically under the references relation.
If p refers to q, then p preceeds q in this list. */
Paths topoSortPaths(StoreAPI & store, const PathSet & paths);
/* For now, there is a single global store API object, but we'll
purify that in the future. */
extern std::shared_ptr<StoreAPI> store;
/* Factory method: open the Nix database, either through the local or
remote implementation. */
std::shared_ptr<StoreAPI> openStore(bool reserveSpace = true);
ref<StoreAPI> openStore(bool reserveSpace = true);
/* Display a set of paths in human-readable form (i.e., between quotes
@ -401,12 +425,6 @@ ValidPathInfo decodeValidPathInfo(std::istream & str,
bool hashGiven = false);
/* Export multiple paths in the format expected by ‘nix-store
--import’. */
void exportPaths(StoreAPI & store, const Paths & paths,
bool sign, Sink & sink);
MakeError(SubstError, Error)
MakeError(BuildError, Error) /* denotes a permanent build failure */

67
src/libutil/types.hh
View file

@ -5,6 +5,7 @@
#include <string>
#include <list>
#include <set>
#include <memory>
#include <boost/format.hpp>
@ -96,4 +97,70 @@ typedef enum {
} Verbosity;
/* A simple non-nullable reference-counted pointer. Actually a wrapper
around std::shared_ptr that prevents non-null constructions. */
template<typename T>
class ref
{
private:
std::shared_ptr<T> p;
public:
ref<T>(const ref<T> & r)
: p(r.p)
{ }
explicit ref<T>(const std::shared_ptr<T> & p)
: p(p)
{
if (!p)
throw std::invalid_argument("null pointer cast to ref");
}
T* operator ->() const
{
return &*p;
}
T& operator *() const
{
return *p;
}
operator std::shared_ptr<T> ()
{
return p;
}
private:
template<typename T2, typename... Args>
friend ref<T2>
make_ref(Args&&... args);
template<typename T2, typename T3, typename... Args>
friend ref<T2>
make_ref(Args&&... args);
};
template<typename T, typename... Args>
inline ref<T>
make_ref(Args&&... args)
{
auto p = std::make_shared<T>(std::forward<Args>(args)...);
return ref<T>(p);
}
template<typename T, typename T2, typename... Args>
inline ref<T>
make_ref(Args&&... args)
{
auto p = std::make_shared<T2>(std::forward<Args>(args)...);
return ref<T>(p);
}
}

10
src/libutil/util.hh
View file

@ -413,4 +413,14 @@ string base64Encode(const string & s);
string base64Decode(const string & s);
/* Get a value for the specified key from an associate container, or a
default value if the key doesn't exist. */
template <class T>
string get(const T & map, const string & key, const string & def = "")
{
auto i = map.find(key);
return i == map.end() ? def : i->second;
}
}

2
src/nix-collect-garbage/nix-collect-garbage.cc
View file

@ -82,7 +82,7 @@ int main(int argc, char * * argv)
// Run the actual garbage collector.
if (!dryRun) {
store = openStore(false);
auto store = openStore(false);
options.action = GCOptions::gcDeleteDead;
GCResults results;
PrintFreed freed(true, results);

91
src/nix-daemon/nix-daemon.cc
View file

@ -149,7 +149,7 @@ struct SavingSourceAdapter : Source
};
static void performOp(bool trusted, unsigned int clientVersion,
static void performOp(ref<LocalStore> store, bool trusted, unsigned int clientVersion,
Source & from, Sink & to, unsigned int op)
{
switch (op) {
@ -278,8 +278,7 @@ static void performOp(bool trusted, unsigned int clientVersion,
startWork();
if (!savedRegular.regular) throw Error("regular file expected");
Path path = dynamic_cast<LocalStore *>(store.get())
->addToStoreFromDump(recursive ? savedNAR.s : savedRegular.s, baseName, recursive, hashAlgo);
Path path = store->addToStoreFromDump(recursive ? savedNAR.s : savedRegular.s, baseName, recursive, hashAlgo);
stopWork();
to << path;
@ -583,56 +582,56 @@ static void processConnection(bool trusted)
#endif
/* Open the store. */
store = std::shared_ptr<StoreAPI>(new LocalStore(reserveSpace));
auto store = make_ref<LocalStore>(reserveSpace);
stopWork();
to.flush();
/* Process client requests. */
unsigned int opCount = 0;
while (true) {
WorkerOp op;
try {
op = (WorkerOp) readInt(from);
} catch (Interrupted & e) {
break;
} catch (EndOfFile & e) {
break;
}
opCount++;
try {
performOp(store, trusted, clientVersion, from, to, op);
} catch (Error & e) {
/* If we're not in a state where we can send replies, then
something went wrong processing the input of the
client. This can happen especially if I/O errors occur
during addTextToStore() / importPath(). If that
happens, just send the error message and exit. */
bool errorAllowed = canSendStderr;
stopWork(false, e.msg(), GET_PROTOCOL_MINOR(clientVersion) >= 8 ? e.status : 0);
if (!errorAllowed) throw;
} catch (std::bad_alloc & e) {
stopWork(false, "Nix daemon out of memory", GET_PROTOCOL_MINOR(clientVersion) >= 8 ? 1 : 0);
throw;
}
to.flush();
assert(!canSendStderr);
};
canSendStderr = false;
_isInterrupted = false;
printMsg(lvlDebug, format("%1% operations") % opCount);
} catch (Error & e) {
stopWork(false, e.msg(), GET_PROTOCOL_MINOR(clientVersion) >= 8 ? 1 : 0);
to.flush();
return;
}
/* Process client requests. */
unsigned int opCount = 0;
while (true) {
WorkerOp op;
try {
op = (WorkerOp) readInt(from);
} catch (Interrupted & e) {
break;
} catch (EndOfFile & e) {
break;
}
opCount++;
try {
performOp(trusted, clientVersion, from, to, op);
} catch (Error & e) {
/* If we're not in a state where we can send replies, then
something went wrong processing the input of the
client. This can happen especially if I/O errors occur
during addTextToStore() / importPath(). If that
happens, just send the error message and exit. */
bool errorAllowed = canSendStderr;
stopWork(false, e.msg(), GET_PROTOCOL_MINOR(clientVersion) >= 8 ? e.status : 0);
if (!errorAllowed) throw;
} catch (std::bad_alloc & e) {
stopWork(false, "Nix daemon out of memory", GET_PROTOCOL_MINOR(clientVersion) >= 8 ? 1 : 0);
throw;
}
to.flush();
assert(!canSendStderr);
};
canSendStderr = false;
_isInterrupted = false;
printMsg(lvlDebug, format("%1% operations") % opCount);
}
@ -787,10 +786,6 @@ static void daemonLoop(char * * argv)
while (1) {
try {
/* Important: the server process *cannot* open the SQLite
database, because it doesn't like forks very much. */
assert(!store);
/* Accept a connection. */
struct sockaddr_un remoteAddr;
socklen_t remoteAddrLen = sizeof(remoteAddr);

42
src/nix-env/nix-env.cc
View file

@ -1,17 +1,17 @@
#include "profiles.hh"
#include "names.hh"
#include "globals.hh"
#include "misc.hh"
#include "shared.hh"
#include "eval.hh"
#include "get-drvs.hh"
#include "attr-path.hh"
#include "common-opts.hh"
#include "xml-writer.hh"
#include "derivations.hh"
#include "eval.hh"
#include "get-drvs.hh"
#include "globals.hh"
#include "names.hh"
#include "profiles.hh"
#include "shared.hh"
#include "store-api.hh"
#include "user-env.hh"
#include "util.hh"
#include "value-to-json.hh"
#include "xml-writer.hh"
#include <cerrno>
#include <ctime>
@ -223,8 +223,8 @@ static int comparePriorities(EvalState & state, DrvInfo & drv1, DrvInfo & drv2)
static bool isPrebuilt(EvalState & state, DrvInfo & elem)
{
Path path = elem.queryOutPath();
if (store->isValidPath(path)) return true;
PathSet ps = store->querySubstitutablePaths(singleton<PathSet>(path));
if (state.store->isValidPath(path)) return true;
PathSet ps = state.store->querySubstitutablePaths(singleton<PathSet>(path));
return ps.find(path) != ps.end();
}
@ -398,7 +398,7 @@ static void queryInstSources(EvalState & state,
if (isDerivation(path)) {
elem.setDrvPath(path);
elem.setOutPath(findOutput(derivationFromPath(*store, path), "out"));
elem.setOutPath(state.store->derivationFromPath(path).findOutput("out"));
if (name.size() >= drvExtension.size() &&
string(name, name.size() - drvExtension.size()) == drvExtension)
name = string(name, 0, name.size() - drvExtension.size());
@ -445,7 +445,7 @@ static void printMissing(EvalState & state, DrvInfos & elems)
targets.insert(i.queryOutPath());
}
printMissing(*store, targets);
printMissing(state.store, targets);
}
@ -711,18 +711,18 @@ static void opSet(Globals & globals, Strings opFlags, Strings opArgs)
if (drv.queryDrvPath() != "") {
PathSet paths = singleton<PathSet>(drv.queryDrvPath());
printMissing(*store, paths);
printMissing(globals.state->store, paths);
if (globals.dryRun) return;
store->buildPaths(paths, globals.state->repair ? bmRepair : bmNormal);
globals.state->store->buildPaths(paths, globals.state->repair ? bmRepair : bmNormal);
}
else {
printMissing(*store, singleton<PathSet>(drv.queryOutPath()));
printMissing(globals.state->store, singleton<PathSet>(drv.queryOutPath()));
if (globals.dryRun) return;
store->ensurePath(drv.queryOutPath());
globals.state->store->ensurePath(drv.queryOutPath());
}
debug(format("switching to new user environment"));
Path generation = createGeneration(globals.profile, drv.queryOutPath());
Path generation = createGeneration(globals.state->store, globals.profile, drv.queryOutPath());
switchLink(globals.profile, generation);
}
@ -973,8 +973,8 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs)
printMsg(lvlTalkative, format("skipping derivation named ‘%1%’ which gives an assertion failure") % i.name);
i.setFailed();
}
validPaths = store->queryValidPaths(paths);
substitutablePaths = store->querySubstitutablePaths(paths);
validPaths = globals.state->store->queryValidPaths(paths);
substitutablePaths = globals.state->store->querySubstitutablePaths(paths);
}
@ -1394,9 +1394,9 @@ int main(int argc, char * * argv)
if (!op) throw UsageError("no operation specified");
store = openStore();
auto store = openStore();
globals.state = std::shared_ptr<EvalState>(new EvalState(searchPath));
globals.state = std::shared_ptr<EvalState>(new EvalState(searchPath, store));
globals.state->repair = repair;
if (file != "")

12
src/nix-env/user-env.cc
View file

@ -38,7 +38,7 @@ bool createUserEnv(EvalState & state, DrvInfos & elems,
drvsToBuild.insert(i.queryDrvPath());
debug(format("building user environment dependencies"));
store->buildPaths(drvsToBuild, state.repair ? bmRepair : bmNormal);
state.store->buildPaths(drvsToBuild, state.repair ? bmRepair : bmNormal);
/* Construct the whole top level derivation. */
PathSet references;
@ -76,8 +76,8 @@ bool createUserEnv(EvalState & state, DrvInfos & elems,
/* 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);
state.store->addTempRoot(j.second);
state.store->ensurePath(j.second);
references.insert(j.second);
}
@ -100,7 +100,7 @@ bool createUserEnv(EvalState & state, DrvInfos & elems,
/* Also write a copy of the list of user environment elements to
the store; we need it for future modifications of the
environment. */
Path manifestFile = store->addTextToStore("env-manifest.nix",
Path manifestFile = state.store->addTextToStore("env-manifest.nix",
(format("%1%") % manifest).str(), references);
/* Get the environment builder expression. */
@ -128,7 +128,7 @@ bool createUserEnv(EvalState & state, DrvInfos & elems,
/* Realise the resulting store expression. */
debug("building user environment");
store->buildPaths(singleton<PathSet>(topLevelDrv), state.repair ? bmRepair : bmNormal);
state.store->buildPaths(singleton<PathSet>(topLevelDrv), state.repair ? bmRepair : bmNormal);
/* Switch the current user environment to the output path. */
PathLocks lock;
@ -141,7 +141,7 @@ bool createUserEnv(EvalState & state, DrvInfos & elems,
}
debug(format("switching to new user environment"));
Path generation = createGeneration(profile, topLevelOut);
Path generation = createGeneration(state.store, profile, topLevelOut);
switchLink(profile, generation);
return true;

13
src/nix-instantiate/nix-instantiate.cc
View file

@ -9,7 +9,6 @@
#include "util.hh"
#include "store-api.hh"
#include "common-opts.hh"
#include "misc.hh"
#include <map>
#include <iostream>
@ -33,7 +32,7 @@ static bool indirectRoot = false;
enum OutputKind { okPlain, okXML, okJSON };
void processExpr(EvalState & state, const Strings & attrPaths,
void processExpr(ref<StoreAPI> store, EvalState & state, const Strings & attrPaths,
bool parseOnly, bool strict, Bindings & autoArgs,
bool evalOnly, OutputKind output, bool location, Expr * e)
{
@ -80,7 +79,7 @@ void processExpr(EvalState & state, const Strings & attrPaths,
else {
Path rootName = gcRoot;
if (++rootNr > 1) rootName += "-" + std::to_string(rootNr);
drvPath = addPermRoot(*store, drvPath, rootName, indirectRoot);
drvPath = addPermRoot(store, drvPath, rootName, indirectRoot);
}
std::cout << format("%1%%2%\n") % drvPath % (outputName != "out" ? "!" + outputName : "");
}
@ -158,9 +157,9 @@ int main(int argc, char * * argv)
if (evalOnly && !wantsReadWrite)
settings.readOnlyMode = true;
store = openStore();
auto store = openStore();
EvalState state(searchPath);
EvalState state(searchPath, store);
state.repair = repair;
Bindings & autoArgs(*evalAutoArgs(state, autoArgs_));
@ -178,7 +177,7 @@ int main(int argc, char * * argv)
if (readStdin) {
Expr * e = parseStdin(state);
processExpr(state, attrPaths, parseOnly, strict, autoArgs,
processExpr(store, state, attrPaths, parseOnly, strict, autoArgs,
evalOnly, outputKind, xmlOutputSourceLocation, e);
} else if (files.empty() && !fromArgs)
files.push_back("./default.nix");
@ -187,7 +186,7 @@ int main(int argc, char * * argv)
Expr * e = fromArgs
? state.parseExprFromString(i, absPath("."))
: state.parseExprFromFile(resolveExprPath(lookupFileArg(state, i)));
processExpr(state, attrPaths, parseOnly, strict, autoArgs,
processExpr(store, state, attrPaths, parseOnly, strict, autoArgs,
evalOnly, outputKind, xmlOutputSourceLocation, e);
}

4
src/nix-prefetch-url/nix-prefetch-url.cc
View file

@ -91,8 +91,8 @@ int main(int argc, char * * argv)
if (args.size() > 2)
throw UsageError("too many arguments");
store = openStore();
EvalState state(searchPath);
auto store = openStore();
EvalState state(searchPath, store);
Bindings & autoArgs(*evalAutoArgs(state, autoArgs_));

4
src/nix-store/dotgraph.cc
View file

@ -94,7 +94,7 @@ void printClosure(const Path & nePath, const StoreExpr & fs)
#endif
void printDotGraph(const PathSet & roots)
void printDotGraph(StoreAPI & store, const PathSet & roots)
{
PathSet workList(roots);
PathSet doneSet;
@ -111,7 +111,7 @@ void printDotGraph(const PathSet & roots)
cout << makeNode(path, symbolicName(path), "#ff0000");
PathSet references;
store->queryReferences(path, references);
store.queryReferences(path, references);
for (PathSet::iterator i = references.begin();
i != references.end(); ++i)

4
src/nix-store/dotgraph.hh
View file

@ -4,6 +4,8 @@
namespace nix {
void printDotGraph(const PathSet & roots);
class StoreAPI;
void printDotGraph(StoreAPI & store, const PathSet & roots);
}

59
src/nix-store/nix-store.cc
View file

@ -1,14 +1,14 @@
#include "globals.hh"
#include "misc.hh"
#include "archive.hh"
#include "shared.hh"
#include "derivations.hh"
#include "dotgraph.hh"
#include "xmlgraph.hh"
#include "globals.hh"
#include "local-store.hh"
#include "util.hh"
#include "serve-protocol.hh"
#include "worker-protocol.hh"
#include "monitor-fd.hh"
#include "serve-protocol.hh"
#include "shared.hh"
#include "util.hh"
#include "worker-protocol.hh"
#include "xmlgraph.hh"
#include <iostream>
#include <algorithm>
@ -37,6 +37,7 @@ static Path gcRoot;
static int rootNr = 0;
static bool indirectRoot = false;
static bool noOutput = false;
static std::shared_ptr<StoreAPI> store;
LocalStore & ensureLocalStore()
@ -65,7 +66,7 @@ static PathSet realisePath(Path path, bool build = true)
if (isDerivation(p.first)) {
if (build) store->buildPaths(singleton<PathSet>(path));
Derivation drv = derivationFromPath(*store, p.first);
Derivation drv = store->derivationFromPath(p.first);
rootNr++;
if (p.second.empty())
@ -83,7 +84,7 @@ static PathSet realisePath(Path path, bool build = true)
Path rootName = gcRoot;
if (rootNr > 1) rootName += "-" + std::to_string(rootNr);
if (i->first != "out") rootName += "-" + i->first;
outPath = addPermRoot(*store, outPath, rootName, indirectRoot);
outPath = addPermRoot(ref<StoreAPI>(store), outPath, rootName, indirectRoot);
}
outputs.insert(outPath);
}
@ -99,7 +100,7 @@ static PathSet realisePath(Path path, bool build = true)
Path rootName = gcRoot;
rootNr++;
if (rootNr > 1) rootName += "-" + std::to_string(rootNr);
path = addPermRoot(*store, path, rootName, indirectRoot);
path = addPermRoot(ref<StoreAPI>(store), path, rootName, indirectRoot);
}
return singleton<PathSet>(path);
}
@ -129,7 +130,7 @@ static void opRealise(Strings opFlags, Strings opArgs)
unsigned long long downloadSize, narSize;
PathSet willBuild, willSubstitute, unknown;
queryMissing(*store, PathSet(paths.begin(), paths.end()),
store->queryMissing(PathSet(paths.begin(), paths.end()),
willBuild, willSubstitute, unknown, downloadSize, narSize);
if (ignoreUnknown) {
@ -141,7 +142,7 @@ static void opRealise(Strings opFlags, Strings opArgs)
}
if (settings.get("print-missing", true))
printMissing(*store, willBuild, willSubstitute, unknown, downloadSize, narSize);
printMissing(ref<StoreAPI>(store), willBuild, willSubstitute, unknown, downloadSize, narSize);
if (dryRun) return;
@ -216,7 +217,7 @@ static PathSet maybeUseOutputs(const Path & storePath, bool useOutput, bool forc
{
if (forceRealise) realisePath(storePath);
if (useOutput && isDerivation(storePath)) {
Derivation drv = derivationFromPath(*store, storePath);
Derivation drv = store->derivationFromPath(storePath);
PathSet outputs;
for (auto & i : drv.outputs)
outputs.insert(i.second.path);
@ -253,7 +254,7 @@ static void printTree(const Path & path,
closure(B). That is, if derivation A is an (possibly indirect)
input of B, then A is printed first. This has the effect of
flattening the tree, preventing deeply nested structures. */
Paths sorted = topoSortPaths(*store, references);
Paths sorted = store->topoSortPaths(references);
reverse(sorted.begin(), sorted.end());
for (auto i = sorted.begin(); i != sorted.end(); ++i) {
@ -318,7 +319,7 @@ static void opQuery(Strings opFlags, Strings opArgs)
for (auto & i : opArgs) {
i = followLinksToStorePath(i);
if (forceRealise) realisePath(i);
Derivation drv = derivationFromPath(*store, i);
Derivation drv = store->derivationFromPath(i);
for (auto & j : drv.outputs)
cout << format("%1%\n") % j.second.path;
}
@ -333,13 +334,13 @@ static void opQuery(Strings opFlags, Strings opArgs)
for (auto & i : opArgs) {
PathSet ps = maybeUseOutputs(followLinksToStorePath(i), useOutput, forceRealise);
for (auto & j : ps) {
if (query == qRequisites) computeFSClosure(*store, j, paths, false, includeOutputs);
if (query == qRequisites) store->computeFSClosure(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);
else if (query == qReferrersClosure) store->computeFSClosure(j, paths, true);
}
}
Paths sorted = topoSortPaths(*store, paths);
Paths sorted = store->topoSortPaths(paths);
for (Paths::reverse_iterator i = sorted.rbegin();
i != sorted.rend(); ++i)
cout << format("%s\n") % *i;
@ -357,7 +358,7 @@ static void opQuery(Strings opFlags, Strings opArgs)
case qBinding:
for (auto & i : opArgs) {
Path path = useDeriver(followLinksToStorePath(i));
Derivation drv = derivationFromPath(*store, path);
Derivation drv = store->derivationFromPath(path);
StringPairs::iterator j = drv.env.find(bindingName);
if (j == drv.env.end())
throw Error(format("derivation ‘%1%’ has no environment binding named ‘%2%’")
@ -394,7 +395,7 @@ static void opQuery(Strings opFlags, Strings opArgs)
PathSet paths = maybeUseOutputs(followLinksToStorePath(i), useOutput, forceRealise);
roots.insert(paths.begin(), paths.end());
}
printDotGraph(roots);
printDotGraph(*store, roots);
break;
}
@ -404,7 +405,7 @@ static void opQuery(Strings opFlags, Strings opArgs)
PathSet paths = maybeUseOutputs(followLinksToStorePath(i), useOutput, forceRealise);
roots.insert(paths.begin(), paths.end());
}
printXmlGraph(roots);
printXmlGraph(*store, roots);
break;
}
@ -419,7 +420,7 @@ static void opQuery(Strings opFlags, Strings opArgs)
for (auto & i : opArgs) {
PathSet paths = maybeUseOutputs(followLinksToStorePath(i), useOutput, forceRealise);
for (auto & j : paths)
computeFSClosure(*store, j, referrers, true,
store->computeFSClosure(j, referrers, true,
settings.gcKeepOutputs, settings.gcKeepDerivations);
}
Roots roots = store->findRoots();
@ -450,7 +451,7 @@ static void opPrintEnv(Strings opFlags, Strings opArgs)
if (opArgs.size() != 1) throw UsageError("‘--print-env’ requires one derivation store path");
Path drvPath = opArgs.front();
Derivation drv = derivationFromPath(*store, drvPath);
Derivation drv = store->derivationFromPath(drvPath);
/* Print each environment variable in the derivation in a format
that can be sourced by the shell. */
@ -715,9 +716,9 @@ static void opExport(Strings opFlags, Strings opArgs)
else throw UsageError(format("unknown flag ‘%1%’") % i);
FdSink sink(STDOUT_FILENO);
Paths sorted = topoSortPaths(*store, PathSet(opArgs.begin(), opArgs.end()));
Paths sorted = store->topoSortPaths(PathSet(opArgs.begin(), opArgs.end()));
reverse(sorted.begin(), sorted.end());
exportPaths(*store, sorted, sign, sink);
store->exportPaths(sorted, sign, sink);
}
@ -896,7 +897,7 @@ static void opServe(Strings opFlags, Strings opArgs)
if (!isDerivation(path)) paths2.insert(path);
unsigned long long downloadSize, narSize;
PathSet willBuild, willSubstitute, unknown;
queryMissing(*store, PathSet(paths2.begin(), paths2.end()),
store->queryMissing(PathSet(paths2.begin(), paths2.end()),
willBuild, willSubstitute, unknown, downloadSize, narSize);
/* FIXME: should use ensurePath(), but it only
does one path at a time. */
@ -941,9 +942,9 @@ static void opServe(Strings opFlags, Strings opArgs)
case cmdExportPaths: {
bool sign = readInt(in);
Paths sorted = topoSortPaths(*store, readStorePaths<PathSet>(in));
Paths sorted = store->topoSortPaths(readStorePaths<PathSet>(in));
reverse(sorted.begin(), sorted.end());
exportPaths(*store, sorted, sign, out);
store->exportPaths(sorted, sign, out);
break;
}
@ -988,7 +989,7 @@ static void opServe(Strings opFlags, Strings opArgs)
PathSet paths = readStorePaths<PathSet>(in);
PathSet closure;
for (auto & i : paths)
computeFSClosure(*store, i, closure, false, includeOutputs);
store->computeFSClosure(i, closure, false, includeOutputs);
out << closure;
break;
}

4
src/nix-store/xmlgraph.cc
View file

@ -33,7 +33,7 @@ static string makeNode(const string & id)
}
void printXmlGraph(const PathSet & roots)
void printXmlGraph(StoreAPI & store, const PathSet & roots)
{
PathSet workList(roots);
PathSet doneSet;
@ -51,7 +51,7 @@ void printXmlGraph(const PathSet & roots)
cout << makeNode(path);
PathSet references;
store->queryReferences(path, references);
store.queryReferences(path, references);
for (PathSet::iterator i = references.begin();
i != references.end(); ++i)

4
src/nix-store/xmlgraph.hh
View file

@ -4,6 +4,8 @@
namespace nix {
void printXmlGraph(const PathSet & roots);
class StoreAPI;
void printXmlGraph(StoreAPI & store, const PathSet & roots);
}