[Support] Add sys::fs::set_current_path() (aka chdir)
Summary:
This adds a cross-platform way of setting the current working directory
analogous to the existing current_path() function used for retrieving
it. The function will be used in lldb.
Reviewers: rafael, silvas, zturner
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D29035
llvm-svn: 292907
diff --git a/llvm/lib/Support/Windows/Path.inc b/llvm/lib/Support/Windows/Path.inc
index 27b250b..3597b55 100644
--- a/llvm/lib/Support/Windows/Path.inc
+++ b/llvm/lib/Support/Windows/Path.inc
@@ -200,6 +200,18 @@
return UTF16ToUTF8(cur_path.begin(), cur_path.size(), result);
}
+std::error_code set_current_path(const Twine &path) {
+ // Convert to utf-16.
+ SmallVector<wchar_t, 128> wide_path;
+ if (std::error_code ec = widenPath(path, wide_path))
+ return ec;
+
+ if (!::SetCurrentDirectoryW(wide_path.begin()))
+ return mapWindowsError(::GetLastError());
+
+ return std::error_code();
+}
+
std::error_code create_directory(const Twine &path, bool IgnoreExisting,
perms Perms) {
SmallVector<wchar_t, 128> path_utf16;