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Merge branch 'master' (reformat)

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This commit is contained in:
Eelco Dolstra 2025-07-23 21:22:19 +02:00
commit 3a67cafa0d
592 changed files with 23271 additions and 23600 deletions
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83
src/libutil/posix-source-accessor.cc
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@ -15,43 +15,41 @@ PosixSourceAccessor::PosixSourceAccessor(std::filesystem::path && argRoot)
}
PosixSourceAccessor::PosixSourceAccessor()
: PosixSourceAccessor(std::filesystem::path {})
{ }
: PosixSourceAccessor(std::filesystem::path{})
{
}
SourcePath PosixSourceAccessor::createAtRoot(const std::filesystem::path & path)
{
std::filesystem::path path2 = absPath(path);
return {
make_ref<PosixSourceAccessor>(path2.root_path()),
CanonPath { path2.relative_path().string() },
CanonPath{path2.relative_path().string()},
};
}
std::filesystem::path PosixSourceAccessor::makeAbsPath(const CanonPath & path)
{
return root.empty()
? (std::filesystem::path { path.abs() })
: path.isRoot()
? /* Don't append a slash for the root of the accessor, since
it can be a non-directory (e.g. in the case of `fetchTree
{ type = "file" }`). */
root
: root / path.rel();
return root.empty() ? (std::filesystem::path{path.abs()})
: path.isRoot() ? /* Don't append a slash for the root of the accessor, since
it can be a non-directory (e.g. in the case of `fetchTree
{ type = "file" }`). */
root
: root / path.rel();
}
void PosixSourceAccessor::readFile(
const CanonPath & path,
Sink & sink,
std::function<void(uint64_t)> sizeCallback)
void PosixSourceAccessor::readFile(const CanonPath & path, Sink & sink, std::function<void(uint64_t)> sizeCallback)
{
assertNoSymlinks(path);
auto ap = makeAbsPath(path);
AutoCloseFD fd = toDescriptor(open(ap.string().c_str(), O_RDONLY
#ifndef _WIN32
| O_NOFOLLOW | O_CLOEXEC
#endif
AutoCloseFD fd = toDescriptor(open(
ap.string().c_str(),
O_RDONLY
#ifndef _WIN32
| O_NOFOLLOW | O_CLOEXEC
#endif
));
if (!fd)
throw SysError("opening file '%1%'", ap.string());
@ -71,8 +69,7 @@ void PosixSourceAccessor::readFile(
if (rd == -1) {
if (errno != EINTR)
throw SysError("reading from file '%s'", showPath(path));
}
else if (rd == 0)
} else if (rd == 0)
throw SysError("unexpected end-of-file reading '%s'", showPath(path));
else {
assert(rd <= left);
@ -84,7 +81,8 @@ void PosixSourceAccessor::readFile(
bool PosixSourceAccessor::pathExists(const CanonPath & path)
{
if (auto parent = path.parent()) assertNoSymlinks(*parent);
if (auto parent = path.parent())
assertNoSymlinks(*parent);
return nix::pathExists(makeAbsPath(path).string());
}
@ -99,11 +97,13 @@ std::optional<struct stat> PosixSourceAccessor::cachedLstat(const CanonPath & pa
std::optional<Cache::mapped_type> res;
cache.cvisit(absPath, [&](auto & x) { res.emplace(x.second); });
if (res) return *res;
if (res)
return *res;
auto st = nix::maybeLstat(absPath.c_str());
if (cache.size() >= 16384) cache.clear();
if (cache.size() >= 16384)
cache.clear();
cache.emplace(absPath, st);
return st;
@ -111,22 +111,25 @@ std::optional<struct stat> PosixSourceAccessor::cachedLstat(const CanonPath & pa
std::optional<SourceAccessor::Stat> PosixSourceAccessor::maybeLstat(const CanonPath & path)
{
if (auto parent = path.parent()) assertNoSymlinks(*parent);
if (auto parent = path.parent())
assertNoSymlinks(*parent);
auto st = cachedLstat(path);
if (!st) return std::nullopt;
if (!st)
return std::nullopt;
mtime = std::max(mtime, st->st_mtime);
return Stat {
.type =
S_ISREG(st->st_mode) ? tRegular :
S_ISDIR(st->st_mode) ? tDirectory :
S_ISLNK(st->st_mode) ? tSymlink :
S_ISCHR(st->st_mode) ? tChar :
S_ISBLK(st->st_mode) ? tBlock :
return Stat{
.type = S_ISREG(st->st_mode) ? tRegular
: S_ISDIR(st->st_mode) ? tDirectory
: S_ISLNK(st->st_mode) ? tSymlink
: S_ISCHR(st->st_mode) ? tChar
: S_ISBLK(st->st_mode) ? tBlock
:
#ifdef S_ISSOCK
S_ISSOCK(st->st_mode) ? tSocket :
S_ISSOCK(st->st_mode) ? tSocket
:
#endif
S_ISFIFO(st->st_mode) ? tFifo :
tUnknown,
S_ISFIFO(st->st_mode) ? tFifo
: tUnknown,
.fileSize = S_ISREG(st->st_mode) ? std::optional<uint64_t>(st->st_size) : std::nullopt,
.isExecutable = S_ISREG(st->st_mode) && st->st_mode & S_IXUSR,
};
@ -148,7 +151,8 @@ SourceAccessor::DirEntries PosixSourceAccessor::readDirectory(const CanonPath &
* libstdc++ implementation [1] and the standard proposal
* about the caching variations of directory_entry [2].
* [1]: https://github.com/gcc-mirror/gcc/blob/8ea555b7b4725dbc5d9286f729166cd54ce5b615/libstdc%2B%2B-v3/include/bits/fs_dir.h#L341-L348
* [1]:
https://github.com/gcc-mirror/gcc/blob/8ea555b7b4725dbc5d9286f729166cd54ce5b615/libstdc%2B%2B-v3/include/bits/fs_dir.h#L341-L348
* [2]: https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0317r1.html
*/
@ -185,7 +189,8 @@ SourceAccessor::DirEntries PosixSourceAccessor::readDirectory(const CanonPath &
std::string PosixSourceAccessor::readLink(const CanonPath & path)
{
if (auto parent = path.parent()) assertNoSymlinks(*parent);
if (auto parent = path.parent())
assertNoSymlinks(*parent);
return nix::readLink(makeAbsPath(path).string());
}
@ -214,4 +219,4 @@ ref<SourceAccessor> makeFSSourceAccessor(std::filesystem::path root)
{
return make_ref<PosixSourceAccessor>(std::move(root));
}
}
} // namespace nix