From fb8a4e8079ab8fc37e9cde32957c35637280ab8f Mon Sep 17 00:00:00 2001 From: "brian m. carlson" Date: Sat, 15 Mar 2014 18:56:52 +0000 Subject: [PATCH] mv: prevent mismatched data when ignoring errors. We shrink the source and destination arrays, but not the modes or submodule_gitfile arrays, resulting in potentially mismatched data. Shrink all the arrays at the same time to prevent this. Add tests to ensure the problem does not recur. Signed-off-by: brian m. carlson Signed-off-by: Junio C Hamano --- builtin/mv.c | 5 +++++ t/t7001-mv.sh | 13 ++++++++++++- 2 files changed, 17 insertions(+), 1 deletion(-) diff --git a/builtin/mv.c b/builtin/mv.c index 5258077224..45e57f307b 100644 --- a/builtin/mv.c +++ b/builtin/mv.c @@ -231,6 +231,11 @@ int cmd_mv(int argc, const char **argv, const char *prefix) memmove(destination + i, destination + i + 1, (argc - i) * sizeof(char *)); + memmove(modes + i, modes + i + 1, + (argc - i) * sizeof(enum update_mode)); + memmove(submodule_gitfile + i, + submodule_gitfile + i + 1, + (argc - i) * sizeof(char *)); i--; } } else diff --git a/t/t7001-mv.sh b/t/t7001-mv.sh index 3bfdfed1f7..4023b6ec48 100755 --- a/t/t7001-mv.sh +++ b/t/t7001-mv.sh @@ -294,7 +294,8 @@ test_expect_success 'setup submodule' ' git submodule add ./. sub && echo content >file && git add file && - git commit -m "added sub and file" + git commit -m "added sub and file" && + git branch submodule ' test_expect_success 'git mv cannot move a submodule in a file' ' @@ -442,4 +443,14 @@ test_expect_success 'mv --dry-run does not touch the submodule or .gitmodules' ' git diff-files --quiet -- sub .gitmodules ' +test_expect_success 'mv -k does not accidentally destroy submodules' ' + git checkout submodule && + mkdir dummy dest && + git mv -k dummy sub dest && + git status --porcelain >actual && + grep "^R sub -> dest/sub" actual && + git reset --hard && + git checkout . +' + test_done -- 2.43.2