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SourceAccessor: Change the main interface from lstat() to maybeLstat()

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This commit is contained in:
Eelco Dolstra 2023-11-01 15:26:07 +01:00
parent 8ffd1695ce
commit cdb27c1519
9 changed files with 22 additions and 20 deletions
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8
src/libutil/posix-source-accessor.cc
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@ -44,9 +44,13 @@ bool PosixSourceAccessor::pathExists(const CanonPath & path)
return nix::pathExists(path.abs());
}
SourceAccessor::Stat PosixSourceAccessor::lstat(const CanonPath & path)
std::optional<SourceAccessor::Stat> PosixSourceAccessor::maybeLstat(const CanonPath & path)
{
auto st = nix::lstat(path.abs());
struct stat st;
if (::lstat(path.c_str(), &st)) {
if (errno == ENOENT) return std::nullopt;
throw SysError("getting status of '%s'", showPath(path));
}
mtime = std::max(mtime, st.st_mtime);
return Stat {
.type =