From 0c8e8c080b08632d6dbee33d093b5df648196b49 Mon Sep 17 00:00:00 2001 From: Adam Spiers Date: Thu, 11 Apr 2013 13:05:12 +0100 Subject: check-ignore: allow incremental streaming of queries via --stdin Some callers, such as the git-annex web assistant, find it useful to invoke git check-ignore as a persistent background process, which can then have queries fed to its STDIN at any point, and the corresponding response consumed from its STDOUT. For this we need to invoke check_ignore() once per line of standard input, and flush standard output after each result. The above use case suggests that empty STDIN is actually a reasonable scenario (e.g. when the caller doesn't know in advance whether any queries need to be fed to the background process until after it's already started), so we make the minor behavioural change that "no pathspec given." is no longer emitted in when STDIN is empty. Even though check_ignore() could now be changed to operate on a single pathspec, we keep it operating on an array of pathspecs since that is a more convenient way of consuming the existing pathspec API. Signed-off-by: Adam Spiers Signed-off-by: Junio C Hamano --- t/t0008-ignores.sh | 28 +++++++++++++++++++++++----- 1 file changed, 23 insertions(+), 5 deletions(-) (limited to 't/t0008-ignores.sh') diff --git a/t/t0008-ignores.sh b/t/t0008-ignores.sh index 7af93ba928..fbf12ae4e2 100755 --- a/t/t0008-ignores.sh +++ b/t/t0008-ignores.sh @@ -216,11 +216,7 @@ test_expect_success_multi 'empty command line' '' ' test_expect_success_multi '--stdin with empty STDIN' '' ' test_check_ignore "--stdin" 1 /dev/null 2>&1 + then + test_set_prereq STDBUF + fi +' + +test_expect_success STDBUF 'streaming support for --stdin' ' + ( + echo one + sleep 2 + echo two + ) | stdbuf -oL git check-ignore -v -n --stdin >out & + pid=$! && + sleep 1 && + grep "^\.gitignore:1:one one" out && + test $( wc -l /dev/null +' test_done -- cgit v1.2.1