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Merge remote-tracking branch 'origin/master' into flakes

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This commit is contained in:
Eelco Dolstra 2020-04-14 13:02:55 +02:00
commit c0c2cb871d
8 changed files with 176 additions and 39 deletions
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31
src/libstore/build.cc
View file

@ -1680,6 +1680,7 @@ void DerivationGoal::buildDone()
}
if (buildMode == bmCheck) {
deleteTmpDir(true);
done(BuildResult::Built);
return;
}
@ -3536,6 +3537,29 @@ StorePathSet parseReferenceSpecifiers(Store & store, const BasicDerivation & drv
}
static void moveCheckToStore(const Path & src, const Path & dst)
{
/* For the rename of directory to succeed, we must be running as root or
the directory must be made temporarily writable (to update the
directory's parent link ".."). */
struct stat st;
if (lstat(src.c_str(), &st) == -1) {
throw SysError(format("getting attributes of path '%1%'") % src);
}
bool changePerm = (geteuid() && S_ISDIR(st.st_mode) && !(st.st_mode & S_IWUSR));
if (changePerm)
chmod_(src, st.st_mode | S_IWUSR);
if (rename(src.c_str(), dst.c_str()))
throw SysError(format("renaming '%1%' to '%2%'") % src % dst);
if (changePerm)
chmod_(dst, st.st_mode);
}
void DerivationGoal::registerOutputs()
{
/* When using a build hook, the build hook can register the output
@ -3714,8 +3738,7 @@ void DerivationGoal::registerOutputs()
if (settings.runDiffHook || settings.keepFailed) {
Path dst = worker.store.toRealPath(path + checkSuffix);
deletePath(dst);
if (rename(actualPath.c_str(), dst.c_str()))
throw SysError(format("renaming '%1%' to '%2%'") % actualPath % dst);
moveCheckToStore(actualPath, dst);
handleDiffHook(
buildUser ? buildUser->getUID() : getuid(),
@ -3723,10 +3746,10 @@ void DerivationGoal::registerOutputs()
path, dst, worker.store.printStorePath(drvPath), tmpDir);
throw NotDeterministic("derivation '%s' may not be deterministic: output '%s' differs from '%s'",
worker.store.printStorePath(drvPath), path, dst);
worker.store.printStorePath(drvPath), worker.store.toRealPath(path), dst);
} else
throw NotDeterministic("derivation '%s' may not be deterministic: output '%s' differs",
worker.store.printStorePath(drvPath), path);
worker.store.printStorePath(drvPath), worker.store.toRealPath(path));
}
/* Since we verified the build, it's now ultimately trusted. */

5
src/libstore/gc.cc
View file

@ -202,6 +202,11 @@ void LocalStore::findTempRoots(FDs & fds, Roots & tempRoots, bool censor)
/* Read the `temproots' directory for per-process temporary root
files. */
for (auto & i : readDirectory(tempRootsDir)) {
if (i.name[0] == '.') {
// Ignore hidden files. Some package managers (notably portage) create
// those to keep the directory alive.
continue;
}
Path path = tempRootsDir + "/" + i.name;
pid_t pid = std::stoi(i.name);