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d99ebf0817
In order to (almost) always show the name of the file without relying on "-H" option of GNU grep, we used to add /dev/null to the argument list unless we are doing -l or -L. This caused "/dev/null:0" to show up when -c is given in the output. It is not enough to add -c to the set of options we do not pass /dev/null for. When we have too many files, we invoke grep multiple times and we need to avoid giving a widow filename to the last invocation -- otherwise we will not see the name. This keeps two filenames when the argv[] buffer is about to overflow and we have not finished iterating over the index, so that the last round will always have at least two paths to work with (and not require /dev/null). An obvious and the only exception is when there is only 1 file that is given to the underlying grep, and in that case we avoid passing /dev/null and let the external "grep -c" report only the number of matches. Signed-off-by: Junio C Hamano <gitster@pobox.com>
116 lines
2 KiB
Bash
Executable file
116 lines
2 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2006 Junio C Hamano
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#
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test_description='git grep various.
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'
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. ./test-lib.sh
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test_expect_success setup '
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{
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echo foo mmap bar
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echo foo_mmap bar
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echo foo_mmap bar mmap
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echo foo mmap bar_mmap
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echo foo_mmap bar mmap baz
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} >file &&
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echo x x xx x >x &&
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echo y yy >y &&
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echo zzz > z &&
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mkdir t &&
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echo test >t/t &&
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git add file x y z t/t &&
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git commit -m initial
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'
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for H in HEAD ''
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do
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case "$H" in
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HEAD) HC='HEAD:' L='HEAD' ;;
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'') HC= L='in working tree' ;;
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esac
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test_expect_success "grep -w $L" '
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{
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echo ${HC}file:1:foo mmap bar
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echo ${HC}file:3:foo_mmap bar mmap
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echo ${HC}file:4:foo mmap bar_mmap
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echo ${HC}file:5:foo_mmap bar mmap baz
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} >expected &&
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git grep -n -w -e mmap $H >actual &&
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diff expected actual
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'
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test_expect_success "grep -w $L (x)" '
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{
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echo ${HC}x:1:x x xx x
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} >expected &&
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git grep -n -w -e "x xx* x" $H >actual &&
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diff expected actual
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'
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test_expect_success "grep -w $L (y-1)" '
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{
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echo ${HC}y:1:y yy
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} >expected &&
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git grep -n -w -e "^y" $H >actual &&
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diff expected actual
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'
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test_expect_success "grep -w $L (y-2)" '
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: >expected &&
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if git grep -n -w -e "^y y" $H >actual
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then
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echo should not have matched
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cat actual
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false
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else
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diff expected actual
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fi
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'
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test_expect_success "grep -w $L (z)" '
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: >expected &&
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if git grep -n -w -e "^z" $H >actual
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then
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echo should not have matched
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cat actual
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false
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else
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diff expected actual
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fi
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'
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test_expect_success "grep $L (t-1)" '
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echo "${HC}t/t:1:test" >expected &&
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git grep -n -e test $H >actual &&
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diff expected actual
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'
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test_expect_success "grep $L (t-2)" '
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echo "${HC}t:1:test" >expected &&
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(
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cd t &&
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git grep -n -e test $H
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) >actual &&
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diff expected actual
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'
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test_expect_success "grep $L (t-3)" '
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echo "${HC}t/t:1:test" >expected &&
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(
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cd t &&
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git grep --full-name -n -e test $H
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) >actual &&
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diff expected actual
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'
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test_expect_failure "grep -c $L (no /dev/null)" '
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git grep -c test $H | grep -q "/dev/null"
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'
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done
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test_done
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