[PATCH] Demonstrate breakage: checkout overwrites untracked symlink with directory
From: Johannes Sixt <hidden>
Date: 2016-06-15 22:50:30
Subsystem:
the rest · Maintainer:
Linus Torvalds
This adds tests where an untracked file and an untracked symlink are in the way where a directory should be created by 'git checkout'. Commit b1735b1a (do not overwrite files in leading path, 2010-12-14) fixed the case where a file is in the way, but the untracked symlink is still removed silently. Signed-off-by: Johannes Sixt <redacted> --- On Mittwoch, 2. Februar 2011, Johannes Sixt wrote:
It seems to interact with the lstat_cache. When lstat reports a symlink, this result is cached; but if it is a regular file, it is not cached.
The case where a file is in the way was fixed only in v1.7.3.4, but symlinks are still affected. Clemens, can you help? -- Hannes PS: When a date is given for commit reference in a commit message as above, do you prefer the author date or the committer date? Above, I took the committer date, which is 2 months behind the author date. t/t2019-checkout-overwrite.sh | 50 +++++++++++++++++++++++++++++++++++++++++ 1 files changed, 50 insertions(+), 0 deletions(-) create mode 100755 t/t2019-checkout-overwrite.sh
diff --git a/t/t2019-checkout-overwrite.sh b/t/t2019-checkout-overwrite.sh
new file mode 100755
index 0000000..e4e529d
--- /dev/null
+++ b/t/t2019-checkout-overwrite.sh@@ -0,0 +1,50 @@ +#!/bin/sh + +test_description='checkout must not overwrite an untracked objects' +. ./test-lib.sh + +test_expect_success 'setup' ' + + mkdir -p a/b/c && + >a/b/c/d && + git add -A && + git commit -m base && + git tag start +' + +test_expect_success 'create a commit where dir a/b changed to file' ' + + git checkout -b file && + rm -rf a/b && + >a/b && + git add -A && + git commit -m "dir to file" +' + +test_expect_success 'checkout commit with dir must not remove untracked a/b' ' + + git rm --cached a/b && + git commit -m "un-track the file" && + test_must_fail git checkout start && + test -f a/b +' + +test_expect_success 'create a commit where dir a/b changed to symlink' ' + + rm -rf a/b && # cleanup if previous test failed + git checkout -f -b symlink start && + rm -rf a/b && + ln -s foo a/b && + git add -A && + git commit -m "dir to symlink" +' + +test_expect_failure 'checkout commit with dir must not remove untracked a/b' ' + + git rm --cached a/b && + git commit -m "un-track the symlink" && + test_must_fail git checkout start && + test -h a/b +' + +test_done
--
1.7.4.80.g89060