From 229a95aafa77b583b46a3156b4fad469c264ddfd Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Fri, 23 Jun 2017 11:04:14 -0700 Subject: [PATCH 1/2] t0027: do not use an empty string as a pathspec element In an upcoming update, we will finally make an empty string illegal as an element in a pathspec; it traditionally meant the same as ".", i.e. include everything, so update this test that passes "" to pass a dot instead. At this point in the test sequence, there is no modified path that need to be further added before committing; the working tree is empty except for .gitattributes which was just added to the index. So we could instead pass no pathspec, but this is a conversion more faithful to the original. Signed-off-by: Junio C Hamano --- t/t0027-auto-crlf.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/t/t0027-auto-crlf.sh b/t/t0027-auto-crlf.sh index 93725895a4..e41c9b3bb2 100755 --- a/t/t0027-auto-crlf.sh +++ b/t/t0027-auto-crlf.sh @@ -322,7 +322,7 @@ test_expect_success 'setup master' ' echo >.gitattributes && git checkout -b master && git add .gitattributes && - git commit -m "add .gitattributes" "" && + git commit -m "add .gitattributes" . && printf "\$Id: 0000000000000000000000000000000000000000 \$\nLINEONE\nLINETWO\nLINETHREE" >LF && printf "\$Id: 0000000000000000000000000000000000000000 \$\r\nLINEONE\r\nLINETWO\r\nLINETHREE" >CRLF && printf "\$Id: 0000000000000000000000000000000000000000 \$\nLINEONE\r\nLINETWO\nLINETHREE" >CRLF_mix_LF && From 9e4e8a64c2b9043b7ae2b6476efd9214c6738505 Mon Sep 17 00:00:00 2001 From: Emily Xie Date: Tue, 6 Jun 2017 23:33:08 -0400 Subject: [PATCH 2/2] pathspec: die on empty strings as pathspec An empty string as a pathspec element matches all paths. A buggy script, however, could accidentally assign an empty string to a variable that then gets passed to a Git command invocation, e.g.: path=... compute a path to be removed in $path ... git rm -r "$path" which would unintentionally remove all paths in the current directory. The fix for this issue comprises of two steps. Step 1, which warns that empty strings as pathspecs will become invalid, has already been implemented in commit d426430 ("pathspec: warn on empty strings as pathspec", 2016-06-22). This patch is step 2. It removes the warning and throws an error instead. Signed-off-by: Emily Xie Reported-by: David Turner Signed-off-by: Junio C Hamano --- pathspec.c | 11 ++++------- t/t3600-rm.sh | 5 ++--- t/t3700-add.sh | 5 ++--- 3 files changed, 8 insertions(+), 13 deletions(-) diff --git a/pathspec.c b/pathspec.c index 729df9f385..c32503d079 100644 --- a/pathspec.c +++ b/pathspec.c @@ -364,7 +364,7 @@ void parse_pathspec(struct pathspec *pathspec, { struct pathspec_item *item; const char *entry = argv ? *argv : NULL; - int i, n, prefixlen, warn_empty_string, nr_exclude = 0; + int i, n, prefixlen, nr_exclude = 0; memset(pathspec, 0, sizeof(*pathspec)); @@ -402,13 +402,10 @@ void parse_pathspec(struct pathspec *pathspec, } n = 0; - warn_empty_string = 1; while (argv[n]) { - if (*argv[n] == '\0' && warn_empty_string) { - warning(_("empty strings as pathspecs will be made invalid in upcoming releases. " - "please use . instead if you meant to match all paths")); - warn_empty_string = 0; - } + if (*argv[n] == '\0') + die("empty string is not a valid pathspec. " + "please use . instead if you meant to match all paths"); n++; } diff --git a/t/t3600-rm.sh b/t/t3600-rm.sh index 14f0edca2b..44624605e3 100755 --- a/t/t3600-rm.sh +++ b/t/t3600-rm.sh @@ -881,9 +881,8 @@ test_expect_success 'rm files with two different errors' ' test_i18ncmp expect actual ' -test_expect_success 'rm empty string should invoke warning' ' - git rm -rf "" 2>output && - test_i18ngrep "warning: empty strings" output +test_expect_success 'rm empty string should fail' ' + test_must_fail git rm -rf "" ' test_done diff --git a/t/t3700-add.sh b/t/t3700-add.sh index 05379d0a4a..6357d6e74e 100755 --- a/t/t3700-add.sh +++ b/t/t3700-add.sh @@ -332,9 +332,8 @@ test_expect_success 'git add --dry-run --ignore-missing of non-existing file out test_i18ncmp expect.err actual.err ' -test_expect_success 'git add empty string should invoke warning' ' - git add "" 2>output && - test_i18ngrep "warning: empty strings" output +test_expect_success 'git add empty string should fail' ' + test_must_fail git add "" ' test_done