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-rw-r--r--src/libexpr/eval.hh4
-rw-r--r--src/libexpr/primops.cc8
-rw-r--r--src/libstore/derivations.cc58
-rw-r--r--src/libstore/gc.cc40
-rw-r--r--src/libstore/path.cc14
-rw-r--r--src/libstore/store-api.cc8
-rw-r--r--src/libstore/store-api.hh4
-rwxr-xr-xsrc/nix-build/nix-build.cc3
8 files changed, 88 insertions, 51 deletions
diff --git a/src/libexpr/eval.hh b/src/libexpr/eval.hh
index 167db9354..cc212258d 100644
--- a/src/libexpr/eval.hh
+++ b/src/libexpr/eval.hh
@@ -116,6 +116,9 @@ private:
/* Cache used by checkSourcePath(). */
std::unordered_map<Path, Path> resolvedPaths;
+ /* Cache used by prim_match(). */
+ std::unordered_map<std::string, std::regex> regexCache;
+
public:
EvalState(const Strings & _searchPath, ref<Store> store);
@@ -318,6 +321,7 @@ private:
friend struct ExprOpConcatLists;
friend struct ExprSelect;
friend void prim_getAttr(EvalState & state, const Pos & pos, Value * * args, Value & v);
+ friend void prim_match(EvalState & state, const Pos & pos, Value * * args, Value & v);
};
diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc
index af6c91954..083caf04a 100644
--- a/src/libexpr/primops.cc
+++ b/src/libexpr/primops.cc
@@ -1812,19 +1812,21 @@ static void prim_hashString(EvalState & state, const Pos & pos, Value * * args,
/* Match a regular expression against a string and return either
‘null’ or a list containing substring matches. */
-static void prim_match(EvalState & state, const Pos & pos, Value * * args, Value & v)
+void prim_match(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
auto re = state.forceStringNoCtx(*args[0], pos);
try {
- std::regex regex(re, std::regex::extended);
+ auto regex = state.regexCache.find(re);
+ if (regex == state.regexCache.end())
+ regex = state.regexCache.emplace(re, std::regex(re, std::regex::extended)).first;
PathSet context;
const std::string str = state.forceString(*args[1], context, pos);
std::smatch match;
- if (!std::regex_match(str, match, regex)) {
+ if (!std::regex_match(str, match, regex->second)) {
mkNull(v);
return;
}
diff --git a/src/libstore/derivations.cc b/src/libstore/derivations.cc
index 5dba84aaf..0067032af 100644
--- a/src/libstore/derivations.cc
+++ b/src/libstore/derivations.cc
@@ -213,15 +213,26 @@ Derivation Store::derivationFromPath(const StorePath & drvPath)
}
-static void printString(string & res, const string & s)
+static void printString(string & res, std::string_view s)
+{
+ char buf[s.size() * 2 + 2];
+ char * p = buf;
+ *p++ = '"';
+ for (auto c : s)
+ if (c == '\"' || c == '\\') { *p++ = '\\'; *p++ = c; }
+ else if (c == '\n') { *p++ = '\\'; *p++ = 'n'; }
+ else if (c == '\r') { *p++ = '\\'; *p++ = 'r'; }
+ else if (c == '\t') { *p++ = '\\'; *p++ = 't'; }
+ else *p++ = c;
+ *p++ = '"';
+ res.append(buf, p - buf);
+}
+
+
+static void printUnquotedString(string & res, std::string_view s)
{
res += '"';
- for (const char * i = s.c_str(); *i; i++)
- if (*i == '\"' || *i == '\\') { res += "\\"; res += *i; }
- else if (*i == '\n') res += "\\n";
- else if (*i == '\r') res += "\\r";
- else if (*i == '\t') res += "\\t";
- else res += *i;
+ res.append(s);
res += '"';
}
@@ -239,6 +250,19 @@ static void printStrings(string & res, ForwardIterator i, ForwardIterator j)
}
+template<class ForwardIterator>
+static void printUnquotedStrings(string & res, ForwardIterator i, ForwardIterator j)
+{
+ res += '[';
+ bool first = true;
+ for ( ; i != j; ++i) {
+ if (first) first = false; else res += ',';
+ printUnquotedString(res, *i);
+ }
+ res += ']';
+}
+
+
string Derivation::unparse(const Store & store, bool maskOutputs,
std::map<std::string, StringSet> * actualInputs) const
{
@@ -249,10 +273,10 @@ string Derivation::unparse(const Store & store, bool maskOutputs,
bool first = true;
for (auto & i : outputs) {
if (first) first = false; else s += ',';
- s += '('; printString(s, i.first);
- s += ','; printString(s, maskOutputs ? "" : store.printStorePath(i.second.path));
- s += ','; printString(s, i.second.hashAlgo);
- s += ','; printString(s, i.second.hash);
+ s += '('; printUnquotedString(s, i.first);
+ s += ','; printUnquotedString(s, maskOutputs ? "" : store.printStorePath(i.second.path));
+ s += ','; printUnquotedString(s, i.second.hashAlgo);
+ s += ','; printUnquotedString(s, i.second.hash);
s += ')';
}
@@ -261,24 +285,24 @@ string Derivation::unparse(const Store & store, bool maskOutputs,
if (actualInputs) {
for (auto & i : *actualInputs) {
if (first) first = false; else s += ',';
- s += '('; printString(s, i.first);
- s += ','; printStrings(s, i.second.begin(), i.second.end());
+ s += '('; printUnquotedString(s, i.first);
+ s += ','; printUnquotedStrings(s, i.second.begin(), i.second.end());
s += ')';
}
} else {
for (auto & i : inputDrvs) {
if (first) first = false; else s += ',';
- s += '('; printString(s, store.printStorePath(i.first));
- s += ','; printStrings(s, i.second.begin(), i.second.end());
+ s += '('; printUnquotedString(s, store.printStorePath(i.first));
+ s += ','; printUnquotedStrings(s, i.second.begin(), i.second.end());
s += ')';
}
}
s += "],";
auto paths = store.printStorePathSet(inputSrcs); // FIXME: slow
- printStrings(s, paths.begin(), paths.end());
+ printUnquotedStrings(s, paths.begin(), paths.end());
- s += ','; printString(s, platform);
+ s += ','; printUnquotedString(s, platform);
s += ','; printString(s, builder);
s += ','; printStrings(s, args.begin(), args.end());
diff --git a/src/libstore/gc.cc b/src/libstore/gc.cc
index 690febc5b..0c3d89611 100644
--- a/src/libstore/gc.cc
+++ b/src/libstore/gc.cc
@@ -255,12 +255,11 @@ void LocalStore::findTempRoots(FDs & fds, Roots & tempRoots, bool censor)
void LocalStore::findRoots(const Path & path, unsigned char type, Roots & roots)
{
auto foundRoot = [&](const Path & path, const Path & target) {
- Path storePath = toStorePath(target);
- // FIXME
- if (isStorePath(storePath) && isValidPath(parseStorePath(storePath)))
- roots[parseStorePath(storePath)].emplace(path);
+ auto storePath = maybeParseStorePath(toStorePath(target));
+ if (storePath && isValidPath(*storePath))
+ roots[std::move(*storePath)].emplace(path);
else
- printInfo("skipping invalid root from '%1%' to '%2%'", path, storePath);
+ printInfo("skipping invalid root from '%1%' to '%2%'", path, target);
};
try {
@@ -296,10 +295,9 @@ void LocalStore::findRoots(const Path & path, unsigned char type, Roots & roots)
}
else if (type == DT_REG) {
- Path storePath = storeDir + "/" + std::string(baseNameOf(path));
- // FIXME
- if (isStorePath(storePath) && isValidPath(parseStorePath(storePath)))
- roots[parseStorePath(storePath)].emplace(path);
+ auto storePath = maybeParseStorePath(storeDir + "/" + std::string(baseNameOf(path)));
+ if (storePath && isValidPath(*storePath))
+ roots[std::move(*storePath)].emplace(path);
}
}
@@ -523,14 +521,14 @@ void LocalStore::deletePathRecursive(GCState & state, const Path & path)
unsigned long long size = 0;
- // FIXME
- if (isStorePath(path) && isValidPath(parseStorePath(path))) {
+ auto storePath = maybeParseStorePath(path);
+ if (storePath && isValidPath(*storePath)) {
StorePathSet referrers;
- queryReferrers(parseStorePath(path), referrers);
+ queryReferrers(*storePath, referrers);
for (auto & i : referrers)
if (printStorePath(i) != path) deletePathRecursive(state, printStorePath(i));
- size = queryPathInfo(parseStorePath(path))->narSize;
- invalidatePathChecked(parseStorePath(path));
+ size = queryPathInfo(*storePath)->narSize;
+ invalidatePathChecked(*storePath);
}
Path realPath = realStoreDir + "/" + std::string(baseNameOf(path));
@@ -593,8 +591,7 @@ bool LocalStore::canReachRoot(GCState & state, StorePathSet & visited, const Sto
visited.insert(path.clone());
- //FIXME
- if (!isStorePath(printStorePath(path)) || !isValidPath(path)) return false;
+ if (!isValidPath(path)) return false;
StorePathSet incoming;
@@ -637,8 +634,9 @@ void LocalStore::tryToDelete(GCState & state, const Path & path)
//Activity act(*logger, lvlDebug, format("considering whether to delete '%1%'") % path);
- // FIXME
- if (!isStorePath(path) || !isValidPath(parseStorePath(path))) {
+ auto storePath = maybeParseStorePath(path);
+
+ if (!storePath || !isValidPath(*storePath)) {
/* A lock file belonging to a path that we're building right
now isn't garbage. */
if (isActiveTempFile(state, path, ".lock")) return;
@@ -655,7 +653,7 @@ void LocalStore::tryToDelete(GCState & state, const Path & path)
StorePathSet visited;
- if (canReachRoot(state, visited, parseStorePath(path))) {
+ if (storePath && canReachRoot(state, visited, *storePath)) {
debug("cannot delete '%s' because it's still reachable", path);
} else {
/* No path we visited was a root, so everything is garbage.
@@ -818,8 +816,8 @@ void LocalStore::collectGarbage(const GCOptions & options, GCResults & results)
string name = dirent->d_name;
if (name == "." || name == "..") continue;
Path path = storeDir + "/" + name;
- // FIXME
- if (isStorePath(path) && isValidPath(parseStorePath(path)))
+ auto storePath = maybeParseStorePath(path);
+ if (storePath && isValidPath(*storePath))
entries.push_back(path);
else
tryToDelete(state, path);
diff --git a/src/libstore/path.cc b/src/libstore/path.cc
index a33bec3ed..9a28aa96a 100644
--- a/src/libstore/path.cc
+++ b/src/libstore/path.cc
@@ -55,6 +55,20 @@ StorePath Store::parseStorePath(std::string_view path) const
return StorePath::make(path, storeDir);
}
+std::optional<StorePath> Store::maybeParseStorePath(std::string_view path) const
+{
+ try {
+ return parseStorePath(path);
+ } catch (Error &) {
+ return {};
+ }
+}
+
+bool Store::isStorePath(std::string_view path) const
+{
+ return (bool) maybeParseStorePath(path);
+}
+
StorePathSet Store::parseStorePathSet(const PathSet & paths) const
{
StorePathSet res;
diff --git a/src/libstore/store-api.cc b/src/libstore/store-api.cc
index 5ca77b563..eb17d5cd2 100644
--- a/src/libstore/store-api.cc
+++ b/src/libstore/store-api.cc
@@ -20,14 +20,6 @@ bool Store::isInStore(const Path & path) const
}
-bool Store::isStorePath(const Path & path) const
-{
- return isInStore(path)
- && path.size() >= storeDir.size() + 1 + storePathHashLen
- && path.find('/', storeDir.size() + 1) == Path::npos;
-}
-
-
Path Store::toStorePath(const Path & path) const
{
if (!isInStore(path))
diff --git a/src/libstore/store-api.hh b/src/libstore/store-api.hh
index 85851e211..88cfa5b5a 100644
--- a/src/libstore/store-api.hh
+++ b/src/libstore/store-api.hh
@@ -282,6 +282,8 @@ public:
StorePath parseStorePath(std::string_view path) const;
+ std::optional<StorePath> maybeParseStorePath(std::string_view path) const;
+
std::string printStorePath(const StorePath & path) const;
// FIXME: remove
@@ -304,7 +306,7 @@ public:
/* Return true if ‘path’ is a store path, i.e. a direct child of
the Nix store. */
- bool isStorePath(const Path & path) const;
+ bool isStorePath(std::string_view path) const;
/* Chop off the parts after the top-level store name, e.g.,
/nix/store/abcd-foo/bar => /nix/store/abcd-foo. */
diff --git a/src/nix-build/nix-build.cc b/src/nix-build/nix-build.cc
index 07c58de92..1bda159d0 100755
--- a/src/nix-build/nix-build.cc
+++ b/src/nix-build/nix-build.cc
@@ -295,7 +295,8 @@ static void _main(int argc, char * * argv)
try {
absolute = canonPath(absPath(i), true);
} catch (Error & e) {};
- if (store->isStorePath(absolute) && std::regex_match(absolute, std::regex(".*\\.drv(!.*)?")))
+ auto [path, outputNames] = parsePathWithOutputs(absolute);
+ if (store->isStorePath(path) && hasSuffix(path, ".drv"))
drvs.push_back(DrvInfo(*state, store, absolute));
else
/* If we're in a #! script, interpret filenames
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 19:48:44 +0000