[clang][Tooling] Delete dots and dotdots when generating absolute paths

Summary:
GetAllFiles interface returns absolute paths, but keeps dots and dot
dots. This patch makes those paths canonical by deleting them.

Reviewers: hokein

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D59079

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@355678 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/Tooling/JSONCompilationDatabase.cpp b/lib/Tooling/JSONCompilationDatabase.cpp
index 23bb1355c2..3414f7db58 100644
--- a/lib/Tooling/JSONCompilationDatabase.cpp
+++ b/lib/Tooling/JSONCompilationDatabase.cpp
@@ -370,6 +370,7 @@ bool JSONCompilationDatabase::parse(std::string &ErrorMessage) {
       SmallString<128> AbsolutePath(
           Directory->getValue(DirectoryStorage));
       llvm::sys::path::append(AbsolutePath, FileName);
+      llvm::sys::path::remove_dots(AbsolutePath, /*remove_dot_dot=*/ true);
       llvm::sys::path::native(AbsolutePath, NativeFilePath);
     } else {
       llvm::sys::path::native(FileName, NativeFilePath);