The read_cache() in prepare_to_commit() would end up clobbering the pointer we had for a previously populated "the_index.cache_tree" in the very common case of "git commit" stressed by e.g. the tests being changed here. We'd populate "the_index.cache_tree" by calling "update_main_cache_tree" in prepare_index(), but would not end up with a "fully prepared" index. What constitutes an existing index is clearly overly fuzzy, here we'll check "active_nr" (aka "the_index.cache_nr"), but our "the_index.cache_tree" might have been malloc()'d already. Thus the code added in11c8a74a64(commit: write cache-tree data when writing index anyway, 2011-12-06) would end up allocating the "cache_tree", and would interact here with code added in7168624c35(Do not generate full commit log message if it is not going to be used, 2007-11-28). The result was a very common memory leak. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Taylor Blau <me@ttaylorr.com>
		
			
				
	
	
		
			107 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			107 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
	
	
	
#!/bin/sh
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test_description='log/show --expand-tabs'
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TEST_PASSES_SANITIZE_LEAK=true
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. ./test-lib.sh
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HT="	"
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title='tab indent at the beginning of the title line'
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body='tab indent on a line in the body'
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# usage: count_expand $indent $numSP $numHT @format_args
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count_expand ()
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{
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	expect=
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	count=$(( $1 + $2 )) ;# expected spaces
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	while test $count -gt 0
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	do
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		expect="$expect "
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		count=$(( $count - 1 ))
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	done
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	shift 2
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	count=$1 ;# expected tabs
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	while test $count -gt 0
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	do
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		expect="$expect$HT"
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		count=$(( $count - 1 ))
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	done
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	shift
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	# The remainder of the command line is "git show -s" options
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	case " $* " in
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	*' --pretty=short '*)
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		line=$title ;;
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	*)
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		line=$body ;;
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	esac
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	# Prefix the output with the command line arguments, and
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	# replace SP with a dot both in the expected and actual output
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	# so that test_cmp would show the difference together with the
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	# breakage in a way easier to consume by the debugging user.
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	{
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		echo "git show -s $*"
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		echo "$expect$line"
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	} | sed -e 's/ /./g' >expect
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	{
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		echo "git show -s $*"
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		git show -s "$@" |
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		sed -n -e "/$line\$/p"
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	} | sed -e 's/ /./g' >actual
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	test_cmp expect actual
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}
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test_expand ()
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{
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	fmt=$1
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	case "$fmt" in
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	*=raw | *=short | *=email)
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		default="0 1" ;;
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	*)
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		default="8 0" ;;
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	esac
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	case "$fmt" in
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	*=email)
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		in=0 ;;
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	*)
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		in=4 ;;
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	esac
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	test_expect_success "expand/no-expand${fmt:+ for $fmt}" '
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		count_expand $in $default $fmt &&
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		count_expand $in 8 0 $fmt --expand-tabs &&
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		count_expand $in 8 0 --expand-tabs $fmt &&
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		count_expand $in 8 0 $fmt --expand-tabs=8 &&
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		count_expand $in 8 0 --expand-tabs=8 $fmt &&
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		count_expand $in 0 1 $fmt --no-expand-tabs &&
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		count_expand $in 0 1 --no-expand-tabs $fmt &&
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		count_expand $in 0 1 $fmt --expand-tabs=0 &&
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		count_expand $in 0 1 --expand-tabs=0 $fmt &&
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		count_expand $in 4 0 $fmt --expand-tabs=4 &&
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		count_expand $in 4 0 --expand-tabs=4 $fmt
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	'
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}
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test_expect_success 'setup' '
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	test_tick &&
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	sed -e "s/Q/$HT/g" <<-EOF >msg &&
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	Q$title
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	Q$body
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	EOF
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	git commit --allow-empty -F msg
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'
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test_expand ""
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test_expand --pretty
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test_expand --pretty=short
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test_expand --pretty=medium
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test_expand --pretty=full
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test_expand --pretty=fuller
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test_expand --pretty=raw
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test_expand --pretty=email
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test_done
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