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eca4460eeb
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>
202 lines
4.2 KiB
Bash
Executable file
202 lines
4.2 KiB
Bash
Executable file
#!/bin/sh
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test_description='diff whitespace error detection'
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. ./test-lib.sh
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test_expect_success setup '
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git config diff.color.whitespace "blue reverse" &&
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>F &&
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git add F &&
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echo " Eight SP indent" >>F &&
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echo " HT and SP indent" >>F &&
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echo "With trailing SP " >>F &&
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echo "Carriage ReturnQ" | tr Q "\015" >>F &&
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echo "No problem" >>F &&
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echo >>F
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'
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blue_grep='7;34m' ;# ESC [ 7 ; 3 4 m
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printf "\033[%s" "$blue_grep" >check-grep
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if (grep "$blue_grep" <check-grep | grep "$blue_grep") >/dev/null 2>&1
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then
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grep_a=grep
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elif (grep -a "$blue_grep" <check-grep | grep -a "$blue_grep") >/dev/null 2>&1
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then
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grep_a='grep -a'
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else
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grep_a=grep ;# expected to fail...
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fi
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rm -f check-grep
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prepare_output () {
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git diff --color >output
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$grep_a "$blue_grep" output >error
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$grep_a -v "$blue_grep" output >normal
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}
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test_expect_success default '
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prepare_output
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grep Eight normal >/dev/null &&
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grep HT error >/dev/null &&
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grep With error >/dev/null &&
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grep Return error >/dev/null &&
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grep No normal >/dev/null
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'
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test_expect_success 'without -trail' '
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git config core.whitespace -trail
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prepare_output
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grep Eight normal >/dev/null &&
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grep HT error >/dev/null &&
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grep With normal >/dev/null &&
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grep Return normal >/dev/null &&
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grep No normal >/dev/null
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'
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test_expect_success 'without -trail (attribute)' '
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git config --unset core.whitespace
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echo "F whitespace=-trail" >.gitattributes
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prepare_output
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grep Eight normal >/dev/null &&
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grep HT error >/dev/null &&
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grep With normal >/dev/null &&
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grep Return normal >/dev/null &&
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grep No normal >/dev/null
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'
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test_expect_success 'without -space' '
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rm -f .gitattributes
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git config core.whitespace -space
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prepare_output
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grep Eight normal >/dev/null &&
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grep HT normal >/dev/null &&
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grep With error >/dev/null &&
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grep Return error >/dev/null &&
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grep No normal >/dev/null
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'
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test_expect_success 'without -space (attribute)' '
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git config --unset core.whitespace
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echo "F whitespace=-space" >.gitattributes
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prepare_output
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grep Eight normal >/dev/null &&
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grep HT normal >/dev/null &&
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grep With error >/dev/null &&
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grep Return error >/dev/null &&
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grep No normal >/dev/null
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'
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test_expect_success 'with indent-non-tab only' '
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rm -f .gitattributes
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git config core.whitespace indent,-trailing,-space
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prepare_output
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grep Eight error >/dev/null &&
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grep HT normal >/dev/null &&
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grep With normal >/dev/null &&
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grep Return normal >/dev/null &&
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grep No normal >/dev/null
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'
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test_expect_success 'with indent-non-tab only (attribute)' '
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git config --unset core.whitespace
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echo "F whitespace=indent,-trailing,-space" >.gitattributes
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prepare_output
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grep Eight error >/dev/null &&
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grep HT normal >/dev/null &&
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grep With normal >/dev/null &&
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grep Return normal >/dev/null &&
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grep No normal >/dev/null
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'
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test_expect_success 'with cr-at-eol' '
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rm -f .gitattributes
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git config core.whitespace cr-at-eol
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prepare_output
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grep Eight normal >/dev/null &&
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grep HT error >/dev/null &&
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grep With error >/dev/null &&
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grep Return normal >/dev/null &&
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grep No normal >/dev/null
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'
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test_expect_success 'with cr-at-eol (attribute)' '
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git config --unset core.whitespace
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echo "F whitespace=trailing,cr-at-eol" >.gitattributes
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prepare_output
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grep Eight normal >/dev/null &&
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grep HT error >/dev/null &&
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grep With error >/dev/null &&
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grep Return normal >/dev/null &&
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grep No normal >/dev/null
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'
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test_expect_success 'trailing empty lines (1)' '
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rm -f .gitattributes &&
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test_must_fail git diff --check >output &&
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grep "new blank line at" output &&
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grep "trailing whitespace" output
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'
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test_expect_success 'trailing empty lines (2)' '
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echo "F -whitespace" >.gitattributes &&
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git diff --check >output &&
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! test -s output
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'
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test_expect_success 'do not color trailing cr in context' '
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git config --unset core.whitespace
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rm -f .gitattributes &&
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echo AAAQ | tr Q "\015" >G &&
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git add G &&
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echo BBBQ | tr Q "\015" >>G
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git diff --color G | tr "\015" Q >output &&
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grep "BBB.*${blue_grep}Q" output &&
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grep "AAA.*\[mQ" output
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'
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test_expect_success 'color new trailing blank lines' '
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{ echo a; echo b; echo; echo; } >x &&
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git add x &&
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{ echo a; echo; echo; echo; echo c; echo; echo; echo; echo; } >x &&
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git diff --color x >output &&
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cnt=$($grep_a "${blue_grep}" output | wc -l) &&
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test $cnt = 2
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'
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test_done
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