/// the VFS.
class FileCollector {
public:
- FileCollector(std::string root, std::string overlay);
+ FileCollector(std::string Root, std::string OverlayRoot);
- void AddFile(const Twine &file);
+ void addFile(const Twine &file);
/// Write the yaml mapping (for the VFS) to the given file.
- std::error_code WriteMapping(StringRef mapping_file);
+ std::error_code writeMapping(StringRef mapping_file);
/// Copy the files into the root directory.
///
- /// When stop_on_error is true (the default) we abort as soon as one file
+ /// When StopOnError is true (the default) we abort as soon as one file
/// cannot be copied. This is relatively common, for example when a file was
/// removed after it was added to the mapping.
- std::error_code CopyFiles(bool stop_on_error = true);
+ std::error_code copyFiles(bool StopOnError = true);
private:
- void AddFileImpl(StringRef src_path);
+ void addFileImpl(StringRef SrcPath);
- bool MarkAsSeen(StringRef path) { return m_seen.insert(path).second; }
+ bool markAsSeen(StringRef Path) { return Seen.insert(Path).second; }
- bool GetRealPath(StringRef src_path,
- SmallVectorImpl<char> &result);
+ bool getRealPath(StringRef SrcPath, SmallVectorImpl<char> &Result);
- void AddFileToMapping(StringRef virtual_path,
- StringRef real_path) {
- m_vfs_writer.addFileMapping(virtual_path, real_path);
+ void addFileToMapping(StringRef VirtualPath, StringRef RealPath) {
+ VFSWriter.addFileMapping(VirtualPath, RealPath);
}
protected:
/// Synchronizes adding files.
- std::mutex m_mutex;
+ std::mutex Mutex;
/// The root directory where files are copied.
- std::string m_root;
+ std::string Root;
/// The root directory where the VFS overlay lives.
- std::string m_overlay_root;
+ std::string OverlayRoot;
/// Tracks already seen files so they can be skipped.
- StringSet<> m_seen;
+ StringSet<> Seen;
/// The yaml mapping writer.
- vfs::YAMLVFSWriter m_vfs_writer;
+ vfs::YAMLVFSWriter VFSWriter;
- /// Caches real_path calls when resolving symlinks.
- StringMap<std::string> m_symlink_map;
+ /// Caches RealPath calls when resolving symlinks.
+ StringMap<std::string> SymlinkMap;
};
} // end namespace llvm
using namespace llvm;
-static bool IsCaseSensitivePath(StringRef path) {
- SmallString<256> tmp_dest = path, upper_dest, real_dest;
+static bool isCaseSensitivePath(StringRef Path) {
+ SmallString<256> TmpDest = Path, UpperDest, RealDest;
// Remove component traversals, links, etc.
- if (!sys::fs::real_path(path, tmp_dest))
+ if (!sys::fs::real_path(Path, TmpDest))
return true; // Current default value in vfs.yaml
- path = tmp_dest;
+ Path = TmpDest;
// Change path to all upper case and ask for its real path, if the latter
// exists and is equal to path, it's not case sensitive. Default to case
// sensitive in the absence of real_path, since this is the YAMLVFSWriter
// default.
- upper_dest = path.upper();
- if (sys::fs::real_path(upper_dest, real_dest) && path.equals(real_dest))
+ UpperDest = Path.upper();
+ if (sys::fs::real_path(UpperDest, RealDest) && Path.equals(RealDest))
return false;
return true;
}
-FileCollector::FileCollector(std::string root, std::string overlay_root)
- : m_root(std::move(root)), m_overlay_root(std::move(overlay_root)) {
- sys::fs::create_directories(this->m_root, true);
+FileCollector::FileCollector(std::string Root, std::string OverlayRoot)
+ : Root(std::move(Root)), OverlayRoot(std::move(OverlayRoot)) {
+ sys::fs::create_directories(this->Root, true);
}
-bool FileCollector::GetRealPath(StringRef src_path,
- SmallVectorImpl<char> &result) {
- SmallString<256> real_path;
- StringRef FileName = sys::path::filename(src_path);
- std::string directory = sys::path::parent_path(src_path).str();
- auto dir_with_symlink = m_symlink_map.find(directory);
+bool FileCollector::getRealPath(StringRef SrcPath,
+ SmallVectorImpl<char> &Result) {
+ SmallString<256> RealPath;
+ StringRef FileName = sys::path::filename(SrcPath);
+ std::string Directory = sys::path::parent_path(SrcPath).str();
+ auto DirWithSymlink = SymlinkMap.find(Directory);
// Use real_path to fix any symbolic link component present in a path.
- // Computing the real path is expensive, cache the search through the
- // parent path directory.
- if (dir_with_symlink == m_symlink_map.end()) {
- auto ec = sys::fs::real_path(directory, real_path);
- if (ec)
+ // Computing the real path is expensive, cache the search through the parent
+ // path Directory.
+ if (DirWithSymlink == SymlinkMap.end()) {
+ auto EC = sys::fs::real_path(Directory, RealPath);
+ if (EC)
return false;
- m_symlink_map[directory] = real_path.str();
+ SymlinkMap[Directory] = RealPath.str();
} else {
- real_path = dir_with_symlink->second;
+ RealPath = DirWithSymlink->second;
}
- sys::path::append(real_path, FileName);
- result.swap(real_path);
+ sys::path::append(RealPath, FileName);
+ Result.swap(RealPath);
return true;
}
-void FileCollector::AddFile(const Twine &file) {
- std::lock_guard<std::mutex> lock(m_mutex);
- std::string file_str = file.str();
- if (MarkAsSeen(file_str))
- AddFileImpl(file_str);
+void FileCollector::addFile(const Twine &file) {
+ std::lock_guard<std::mutex> lock(Mutex);
+ std::string FileStr = file.str();
+ if (markAsSeen(FileStr))
+ addFileImpl(FileStr);
}
-void FileCollector::AddFileImpl(StringRef src_path) {
+void FileCollector::addFileImpl(StringRef SrcPath) {
// We need an absolute src path to append to the root.
- SmallString<256> absolute_src = src_path;
- sys::fs::make_absolute(absolute_src);
+ SmallString<256> AbsoluteSrc = SrcPath;
+ sys::fs::make_absolute(AbsoluteSrc);
// Canonicalize src to a native path to avoid mixed separator styles.
- sys::path::native(absolute_src);
+ sys::path::native(AbsoluteSrc);
// Remove redundant leading "./" pieces and consecutive separators.
- absolute_src = sys::path::remove_leading_dotslash(absolute_src);
+ AbsoluteSrc = sys::path::remove_leading_dotslash(AbsoluteSrc);
// Canonicalize the source path by removing "..", "." components.
- SmallString<256> virtual_path = absolute_src;
- sys::path::remove_dots(virtual_path, /*remove_dot_dot=*/true);
+ SmallString<256> VirtualPath = AbsoluteSrc;
+ sys::path::remove_dots(VirtualPath, /*remove_dot_dot=*/true);
// If a ".." component is present after a symlink component, remove_dots may
// lead to the wrong real destination path. Let the source be canonicalized
// like that but make sure we always use the real path for the destination.
- SmallString<256> copy_from;
- if (!GetRealPath(absolute_src, copy_from))
- copy_from = virtual_path;
+ SmallString<256> CopyFrom;
+ if (!getRealPath(AbsoluteSrc, CopyFrom))
+ CopyFrom = VirtualPath;
- SmallString<256> dst_path = StringRef(m_root);
- sys::path::append(dst_path, sys::path::relative_path(copy_from));
+ SmallString<256> DstPath = StringRef(Root);
+ sys::path::append(DstPath, sys::path::relative_path(CopyFrom));
// Always map a canonical src path to its real path into the YAML, by doing
// this we map different virtual src paths to the same entry in the VFS
// overlay, which is a way to emulate symlink inside the VFS; this is also
// needed for correctness, not doing that can lead to module redefinition
// errors.
- AddFileToMapping(virtual_path, dst_path);
+ addFileToMapping(VirtualPath, DstPath);
}
/// Set the access and modification time for the given file from the given
/// status object.
static std::error_code
-CopyAccessAndModificationTime(StringRef filename,
- const sys::fs::file_status &stat) {
- int fd;
+copyAccessAndModificationTime(StringRef Filename,
+ const sys::fs::file_status &Stat) {
+ int FD;
- if (auto ec =
- sys::fs::openFileForWrite(filename, fd, sys::fs::CD_OpenExisting))
- return ec;
+ if (auto EC =
+ sys::fs::openFileForWrite(Filename, FD, sys::fs::CD_OpenExisting))
+ return EC;
- if (auto ec = sys::fs::setLastAccessAndModificationTime(
- fd, stat.getLastAccessedTime(), stat.getLastModificationTime()))
- return ec;
+ if (auto EC = sys::fs::setLastAccessAndModificationTime(
+ FD, Stat.getLastAccessedTime(), Stat.getLastModificationTime()))
+ return EC;
- if (auto ec = sys::Process::SafelyCloseFileDescriptor(fd))
- return ec;
+ if (auto EC = sys::Process::SafelyCloseFileDescriptor(FD))
+ return EC;
return {};
}
-std::error_code FileCollector::CopyFiles(bool stop_on_error) {
- for (auto &entry : m_vfs_writer.getMappings()) {
+std::error_code FileCollector::copyFiles(bool StopOnError) {
+ for (auto &entry : VFSWriter.getMappings()) {
// Create directory tree.
- if (std::error_code ec =
+ if (std::error_code EC =
sys::fs::create_directories(sys::path::parent_path(entry.RPath),
/*IgnoreExisting=*/true)) {
- if (stop_on_error)
- return ec;
+ if (StopOnError)
+ return EC;
}
// Copy file over.
- if (std::error_code ec = sys::fs::copy_file(entry.VPath, entry.RPath)) {
- if (stop_on_error)
- return ec;
+ if (std::error_code EC = sys::fs::copy_file(entry.VPath, entry.RPath)) {
+ if (StopOnError)
+ return EC;
}
// Copy over permissions.
if (auto perms = sys::fs::getPermissions(entry.VPath)) {
- if (std::error_code ec = sys::fs::setPermissions(entry.RPath, *perms)) {
- if (stop_on_error)
- return ec;
+ if (std::error_code EC = sys::fs::setPermissions(entry.RPath, *perms)) {
+ if (StopOnError)
+ return EC;
}
}
// Copy over modification time.
- sys::fs::file_status stat;
- if (std::error_code ec = sys::fs::status(entry.VPath, stat)) {
- if (stop_on_error)
- return ec;
+ sys::fs::file_status Stat;
+ if (std::error_code EC = sys::fs::status(entry.VPath, Stat)) {
+ if (StopOnError)
+ return EC;
continue;
}
- CopyAccessAndModificationTime(entry.RPath, stat);
+ copyAccessAndModificationTime(entry.RPath, Stat);
}
return {};
}
-std::error_code FileCollector::WriteMapping(StringRef mapping_file) {
- std::lock_guard<std::mutex> lock(m_mutex);
+std::error_code FileCollector::writeMapping(StringRef mapping_file) {
+ std::lock_guard<std::mutex> lock(Mutex);
- StringRef root = m_overlay_root;
- m_vfs_writer.setOverlayDir(root);
- m_vfs_writer.setCaseSensitivity(IsCaseSensitivePath(root));
- m_vfs_writer.setUseExternalNames(false);
+ VFSWriter.setOverlayDir(OverlayRoot);
+ VFSWriter.setCaseSensitivity(isCaseSensitivePath(OverlayRoot));
+ VFSWriter.setUseExternalNames(false);
- std::error_code ec;
- raw_fd_ostream os(mapping_file, ec, sys::fs::F_Text);
- if (ec)
- return ec;
+ std::error_code EC;
+ raw_fd_ostream os(mapping_file, EC, sys::fs::F_Text);
+ if (EC)
+ return EC;
- m_vfs_writer.write(os);
+ VFSWriter.write(os);
return {};
}
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