diff options
Diffstat (limited to 'llvm/lib/Support/CachePruning.cpp')
| -rw-r--r-- | llvm/lib/Support/CachePruning.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/llvm/lib/Support/CachePruning.cpp b/llvm/lib/Support/CachePruning.cpp index 5d81e10..aca1236 100644 --- a/llvm/lib/Support/CachePruning.cpp +++ b/llvm/lib/Support/CachePruning.cpp @@ -180,8 +180,11 @@ bool llvm::pruneCache(StringRef Path, CachePruningPolicy Policy) { // Walk all of the files within this directory. for (sys::fs::directory_iterator File(CachePathNative, EC), FileEnd; File != FileEnd && !EC; File.increment(EC)) { - // Do not touch the timestamp. - if (File->path() == TimestampFile) + // Ignore any files not beginning with the string "llvmcache-". This + // includes the timestamp file as well as any files created by the user. + // This acts as a safeguard against data loss if the user specifies the + // wrong directory as their cache directory. + if (!sys::path::filename(File->path()).startswith("llvmcache-")) continue; // Look at this file. If we can't stat it, there's nothing interesting |