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use doBind in addDependency

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This commit is contained in:
Artturin 2023-09-14 04:36:40 +03:00
parent 11e47e7dfb
commit b8dfa3d53b
1 changed files with 3 additions and 12 deletions
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15
src/libstore/build/local-derivation-goal.cc
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@ -1552,13 +1552,12 @@ void LocalDerivationGoal::addDependency(const StorePath & path)
Path source = worker.store.Store::toRealPath(path); Path source = worker.store.Store::toRealPath(path);
Path target = chrootRootDir + worker.store.printStorePath(path); Path target = chrootRootDir + worker.store.printStorePath(path);
debug("bind-mounting %s -> %s", target, source);
if (pathExists(target)) if (pathExists(target))
// There is a similar debug message in doBind, so only run it in this block to not have double messages.
debug("bind-mounting %s -> %s", target, source);
throw Error("store path '%s' already exists in the sandbox", worker.store.printStorePath(path)); throw Error("store path '%s' already exists in the sandbox", worker.store.printStorePath(path));
auto st = lstat(source);
/* Bind-mount the path into the sandbox. This requires /* Bind-mount the path into the sandbox. This requires
entering its mount namespace, which is not possible entering its mount namespace, which is not possible
in multithreaded programs. So we do this in a in multithreaded programs. So we do this in a
@ -1571,15 +1570,7 @@ void LocalDerivationGoal::addDependency(const StorePath & path)
if (setns(sandboxMountNamespace.get(), 0) == -1) if (setns(sandboxMountNamespace.get(), 0) == -1)
throw SysError("entering sandbox mount namespace"); throw SysError("entering sandbox mount namespace");
if (S_ISDIR(st.st_mode)) doBind(source, target);
createDirs(target);
else {
createDirs(dirOf(target));
writeFile(target, "");
}
if (mount(source.c_str(), target.c_str(), "", MS_BIND, 0) == -1)
throw SysError("bind mount from '%s' to '%s' failed", source, target);
_exit(0); _exit(0);
})); }));