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author | Junio C Hamano <gitster@pobox.com> | |
Sat, 26 Dec 2009 21:53:17 +0000 (13:53 -0800) | ||
committer | Junio C Hamano <gitster@pobox.com> | |
Sat, 26 Dec 2009 21:59:34 +0000 (13:59 -0800) |
Input to "grep" is supposed to be "text", but we deliberately feed output
from "git diff --color" to sift it into two sets of lines (ones with
errors, the other without). Some implementations of "grep" only report
matches with the exit status, without showing the matched lines in their
output (e.g. OpenBSD 4.6, which says "Binary file .. matches").
Fortunately, "grep -a" is often a way to force the command to treat its
input as text.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
from "git diff --color" to sift it into two sets of lines (ones with
errors, the other without). Some implementations of "grep" only report
matches with the exit status, without showing the matched lines in their
output (e.g. OpenBSD 4.6, which says "Binary file .. matches").
Fortunately, "grep -a" is often a way to force the command to treat its
input as text.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
t/t4019-diff-wserror.sh | patch | blob | history |
index 3a3663fbcb4795a9e3755fe831c89a7e312f659e..f6d1f1ebab406fcd4f405178ec151149754500b0 100755 (executable)
--- a/t/t4019-diff-wserror.sh
+++ b/t/t4019-diff-wserror.sh
blue_grep='7;34m' ;# ESC [ 7 ; 3 4 m
+printf "\033[%s" "$blue_grep" >check-grep
+if (grep "$blue_grep" <check-grep | grep "$blue_grep") >/dev/null 2>&1
+then
+ grep_a=grep
+elif (grep -a "$blue_grep" <check-grep | grep -a "$blue_grep") >/dev/null 2>&1
+then
+ grep_a='grep -a'
+else
+ grep_a=grep ;# expected to fail...
+fi
+rm -f check-grep
+
+prepare_output () {
+ git diff --color >output
+ $grep_a "$blue_grep" output >error
+ $grep_a -v "$blue_grep" output >normal
+}
+
test_expect_success default '
- git diff --color >output
- grep "$blue_grep" output >error
- grep -v "$blue_grep" output >normal
+ prepare_output
grep Eight normal >/dev/null &&
grep HT error >/dev/null &&
test_expect_success 'without -trail' '
git config core.whitespace -trail
- git diff --color >output
- grep "$blue_grep" output >error
- grep -v "$blue_grep" output >normal
+ prepare_output
grep Eight normal >/dev/null &&
grep HT error >/dev/null &&
git config --unset core.whitespace
echo "F whitespace=-trail" >.gitattributes
- git diff --color >output
- grep "$blue_grep" output >error
- grep -v "$blue_grep" output >normal
+ prepare_output
grep Eight normal >/dev/null &&
grep HT error >/dev/null &&
rm -f .gitattributes
git config core.whitespace -space
- git diff --color >output
- grep "$blue_grep" output >error
- grep -v "$blue_grep" output >normal
+ prepare_output
grep Eight normal >/dev/null &&
grep HT normal >/dev/null &&
git config --unset core.whitespace
echo "F whitespace=-space" >.gitattributes
- git diff --color >output
- grep "$blue_grep" output >error
- grep -v "$blue_grep" output >normal
+ prepare_output
grep Eight normal >/dev/null &&
grep HT normal >/dev/null &&
rm -f .gitattributes
git config core.whitespace indent,-trailing,-space
- git diff --color >output
- grep "$blue_grep" output >error
- grep -v "$blue_grep" output >normal
+ prepare_output
grep Eight error >/dev/null &&
grep HT normal >/dev/null &&
git config --unset core.whitespace
echo "F whitespace=indent,-trailing,-space" >.gitattributes
- git diff --color >output
- grep "$blue_grep" output >error
- grep -v "$blue_grep" output >normal
+ prepare_output
grep Eight error >/dev/null &&
grep HT normal >/dev/null &&
rm -f .gitattributes
git config core.whitespace cr-at-eol
- git diff --color >output
- grep "$blue_grep" output >error
- grep -v "$blue_grep" output >normal
+ prepare_output
grep Eight normal >/dev/null &&
grep HT error >/dev/null &&
git config --unset core.whitespace
echo "F whitespace=trailing,cr-at-eol" >.gitattributes
- git diff --color >output
- grep "$blue_grep" output >error
- grep -v "$blue_grep" output >normal
+ prepare_output
grep Eight normal >/dev/null &&
grep HT error >/dev/null &&
git add x &&
{ echo a; echo; echo; echo; echo c; echo; echo; echo; echo; } >x &&
git diff --color x >output &&
- cnt=$(grep "${blue_grep}" output | wc -l) &&
+ cnt=$($grep_a "${blue_grep}" output | wc -l) &&
test $cnt = 2
'