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authorSZEDER Gábor <szeder@ira.uka.de>2013-08-17 11:01:58 +0200
committerJunio C Hamano <gitster@pobox.com>2013-08-18 14:41:21 -0700
commita4889e64bf4bf52994923a5bd59092a47bdbc3c6 (patch)
treef3245ba9ebd008273aef208628d5188872455256 /t/t9903-bash-prompt.sh
parent2c2b6646c2723459dbd334c7ced6f77ffb0d596e (diff)
downloadgit-a4889e64bf4bf52994923a5bd59092a47bdbc3c6.tar.gz
git-a4889e64bf4bf52994923a5bd59092a47bdbc3c6.tar.xz
bash prompt: test the prompt with newline in repository path
Newlines in the path to a git repository were not an issue for the git-specific bash prompt before commit efaa0c1532 (bash prompt: combine 'git rev-parse' executions in the main code path, 2013-06-17), because the path returned by 'git rev-parse --git-dir' was directly stored in a variable, and this variable was later always accessed inside double quotes. Newlines are not an issue after commit efaa0c1532 either, but it's more subtle. Since efaa0c1532 we use the following single 'git rev-parse' execution to query various info about the repository: git rev-parse --git-dir --is-inside-git-dir \ --is-bare-repository --is-inside-work-tree The results to these queries are separated by a newline character in the output, e.g.: /home/szeder/src/git/.git false false true A newline in the path to the git repository could potentially break the parsing of these results and ultimately the bash prompt, unless the parsing is done right. Commit efaa0c1532 got it right, as I consciously started parsing 'git rev-parse's output from the end, where each record is a single line containing either 'true' or 'false' or, after e3e0b9378b (bash prompt: combine 'git rev-parse' for detached head, 2013-06-24), the abbreviated commit object name, and all what remains at the beginning is the path to the git repository, no matter how many lines it is. This subtlety really warrants its own test, especially since I didn't explain it in the log message or in an in-code comment back then, so add a test to excercise the prompt with newline characters in the path to the repository. Guard this test with the FUNNYNAMES prerequisite, because not all filesystems support newlines in filenames. Note that 'git rev-parse --git-dir' prints '.git' or '.' when at the top of the worktree or the repository, respectively, and only prints the full path to the repository when in a subdirectory, hence the need for changing into a subdir in the test. Signed-off-by: SZEDER Gábor <szeder@ira.uka.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't/t9903-bash-prompt.sh')
-rwxr-xr-xt/t9903-bash-prompt.sh23
1 files changed, 23 insertions, 0 deletions
diff --git a/t/t9903-bash-prompt.sh b/t/t9903-bash-prompt.sh
index 3c3e4e8c3..59f875e83 100755
--- a/t/t9903-bash-prompt.sh
+++ b/t/t9903-bash-prompt.sh
@@ -61,6 +61,29 @@ test_expect_success 'prompt - unborn branch' '
test_cmp expected "$actual"
'
+repo_with_newline='repo
+with
+newline'
+
+if mkdir "$repo_with_newline" 2>/dev/null
+then
+ test_set_prereq FUNNYNAMES
+else
+ say 'Your filesystem does not allow newlines in filenames.'
+fi
+
+test_expect_success FUNNYNAMES 'prompt - with newline in path' '
+ printf " (master)" >expected &&
+ git init "$repo_with_newline" &&
+ test_when_finished "rm -rf \"$repo_with_newline\"" &&
+ mkdir "$repo_with_newline"/subdir &&
+ (
+ cd "$repo_with_newline/subdir" &&
+ __git_ps1 >"$actual"
+ ) &&
+ test_cmp expected "$actual"
+'
+
test_expect_success 'prompt - detached head' '
printf " ((%s...))" $(git log -1 --format="%h" --abbrev=13 b1^) >expected &&
test_config core.abbrev 13 &&