From 86f8c2368523db5ee56c8856748b26c31ebeb0aa Mon Sep 17 00:00:00 2001 From: Wincent Colaiuta Date: Wed, 12 Dec 2007 17:22:59 +0100 Subject: [PATCH 1/1] Fix "diff --check" whitespace detection "diff --check" would only detect spaces before tabs if a tab was the last character in the leading indent. Fix that and add a test case to make sure the bug doesn't regress in the future. Signed-off-by: Wincent Colaiuta Signed-off-by: Junio C Hamano --- diff.c | 13 ++++++++++--- t/t4015-diff-whitespace.sh | 9 +++++++++ 2 files changed, 19 insertions(+), 3 deletions(-) diff --git a/diff.c b/diff.c index d97ebc501a..9c79ee2891 100644 --- a/diff.c +++ b/diff.c @@ -1044,11 +1044,18 @@ static void checkdiff_consume(void *priv, char *line, unsigned long len) int i, spaces = 0, space_before_tab = 0, white_space_at_end = 0; /* check space before tab */ - for (i = 1; i < len && (line[i] == ' ' || line[i] == '\t'); i++) + for (i = 1; i < len; i++) { if (line[i] == ' ') spaces++; - if (line[i - 1] == '\t' && spaces) - space_before_tab = 1; + else if (line[i] == '\t') { + if (spaces) { + space_before_tab = 1; + break; + } + } + else + break; + } /* check whitespace at line end */ if (line[len - 1] == '\n') diff --git a/t/t4015-diff-whitespace.sh b/t/t4015-diff-whitespace.sh index 79fdff3f3a..6adf9d11d0 100755 --- a/t/t4015-diff-whitespace.sh +++ b/t/t4015-diff-whitespace.sh @@ -117,4 +117,13 @@ EOF git diff -b > out test_expect_success 'another test, with -b' 'git diff expect out' + +test_expect_success 'check mixed spaces and tabs in indent' ' + + # This is indented with SP HT SP. + echo " foo();" > x && + git diff --check | grep "space before tab" + +' + test_done -- 2.47.1