Rollback of commit 9a13899b1492738f8d1a9118cebc9ef9d90c6b34.

*** Reason for rollback ***

Breaks windows:

bazel-out/local-fastbuild/bin/src/main/cpp/util/libfile.a(file_windows.o):file_windows.cc:(.text+0x11e2): multiple definition of `blaze_util::UnlinkPath(std::string const&)'
bazel-out/local-fastbuild/bin/src/main/cpp/util/libfile.a(file_posix.o):file_posix.cc:(.text+0x3ff): first defined here


*** Original change description ***

Bazel client, Windows: implement UnlinkPath

See https://github.com/bazelbuild/bazel/issues/2107

--
PiperOrigin-RevId: 144082937
MOS_MIGRATED_REVID=144082937

1 files changed, 0 insertions, 31 deletions

diff --git a/src/test/cpp/util/file_windows_test.cc b/src/test/cpp/util/file_windows_test.cc
index 3b51642950..1cf49d88c5 100644
--- a/src/test/cpp/util/file_windows_test.cc
+++ b/src/test/cpp/util/file_windows_test.cc
@@ -290,35 +290,4 @@ TEST(FileTest, TestPathExistsWindows) {
   ASSERT_FALSE(PathExists(JoinPath(tmpdir, "junc2")));
 }
 
-TEST(FileTest, TestUnlinkPath) {
-  string tmpdir(GetTestTmpDir());
-  ASSERT_LT(0, tmpdir.size());
-  ASSERT_TRUE(PathExists(tmpdir));
-
-  // Create a directory under `tempdir`, a file inside it, and a junction
-  // pointing to it.
-  string dir1(JoinPath(tmpdir, "dir1"));
-  ASSERT_EQ(0, mkdir(dir1.c_str()));
-  FILE* fh = fopen(JoinPath(dir1, "foo.txt").c_str(), "wt");
-  ASSERT_NE(nullptr, fh);
-  ASSERT_LT(0, fprintf(fh, "hello\n"));
-  fclose(fh);
-  string junc1(JoinPath(tmpdir, "junc1"));
-  RunCommand(string("cmd.exe /C mklink /J \"") + junc1 + "\" \"" + dir1 +
-             "\" >NUL 2>NUL");
-  ASSERT_TRUE(PathExists(junc1));
-  ASSERT_TRUE(PathExists(JoinPath(junc1, "foo.txt")));
-
-  // Non-existent files cannot be unlinked.
-  ASSERT_FALSE(UnlinkPath("does.not.exist"));
-  // Directories cannot be unlinked.
-  ASSERT_FALSE(UnlinkPath(dir1));
-  // Junctions can be unlinked, even if the pointed directory is not empty.
-  ASSERT_TRUE(UnlinkPath(JoinPath(junc1, "foo.txt")));
-  // Files can be unlinked.
-  ASSERT_TRUE(UnlinkPath(junc1));
-  // Clean up the now empty directory.
-  ASSERT_EQ(0, rmdir(dir1.c_str()));
-}
-
 }  // namespace blaze_util