Signed-off-by: Han-Wen Nienhuys <hanwen@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
		
			
				
	
	
		
			137 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Bash
		
	
	
	
	
	
			
		
		
	
	
			137 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Bash
		
	
	
	
	
	
: included from 6002 and others
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>sed.script
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# Answer the sha1 has associated with the tag. The tag must exist under refs/tags
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tag () {
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	_tag=$1
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	git rev-parse --verify "refs/tags/$_tag" ||
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	error "tag: \"$_tag\" does not exist"
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}
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# Generate a commit using the text specified to make it unique and the tree
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# named by the tag specified.
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unique_commit () {
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	_text=$1
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	_tree=$2
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	shift 2
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	echo "$_text" | git commit-tree $(tag "$_tree") "$@"
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}
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# Save the output of a command into the tag specified. Prepend
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# a substitution script for the tag onto the front of sed.script
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save_tag () {
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	_tag=$1
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	test -n "$_tag" || error "usage: save_tag tag commit-args ..."
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	shift 1
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	git update-ref "refs/tags/$_tag" $("$@")
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	echo "s/$(tag $_tag)/$_tag/g" >sed.script.tmp
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	cat sed.script >>sed.script.tmp
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	rm sed.script
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	mv sed.script.tmp sed.script
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}
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# Replace unhelpful sha1 hashes with their symbolic equivalents
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entag () {
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	sed -f sed.script
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}
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# Execute a command after first saving, then setting the GIT_AUTHOR_EMAIL
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# tag to a specified value. Restore the original value on return.
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as_author () {
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	_author=$1
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	shift 1
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	_save=$GIT_AUTHOR_EMAIL
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	GIT_AUTHOR_EMAIL="$_author"
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	export GIT_AUTHOR_EMAIL
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	"$@"
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	if test -z "$_save"
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	then
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		unset GIT_AUTHOR_EMAIL
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	else
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		GIT_AUTHOR_EMAIL="$_save"
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		export GIT_AUTHOR_EMAIL
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	fi
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}
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commit_date () {
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	_commit=$1
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	git cat-file commit $_commit |
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	sed -n "s/^committer .*> \([0-9]*\) .*/\1/p"
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}
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# Assign the value of fake date to a variable, but
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# allow fairly common "1971-08-16 00:00" to be omittd
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assign_fake_date () {
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	case "$2" in
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	??:??:??)	eval "$1='1971-08-16 $2'" ;;
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	??:??)		eval "$1='1971-08-16 00:$2'" ;;
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	??)		eval "$1='1971-08-16 00:00:$2'" ;;
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	*)		eval "$1='$2'" ;;
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	esac
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}
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on_committer_date () {
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	assign_fake_date GIT_COMMITTER_DATE "$1"
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	export GIT_COMMITTER_DATE
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	shift 1
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	"$@"
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}
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on_dates () {
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	assign_fake_date GIT_COMMITTER_DATE "$1"
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	assign_fake_date GIT_AUTHOR_DATE "$2"
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	export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
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	shift 2
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	"$@"
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}
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# Execute a command and suppress any error output.
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hide_error () {
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	"$@" 2>/dev/null
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}
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check_output () {
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	_name=$1
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	shift 1
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	if eval "$*" | entag >"$_name.actual"
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	then
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		test_cmp "$_name.expected" "$_name.actual"
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	else
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		return 1
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	fi
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}
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# Turn a reasonable test description into a reasonable test name.
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# All alphanums translated into -'s which are then compressed and stripped
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# from front and back.
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name_from_description () {
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	perl -pe '
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		s/[^A-Za-z0-9.]/-/g;
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		s/-+/-/g;
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		s/-$//;
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		s/^-//;
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		y/A-Z/a-z/;
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	'
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}
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# Execute the test described by the first argument, by eval'ing
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# command line specified in the 2nd argument. Check the status code
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# is zero and that the output matches the stream read from
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# stdin.
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test_output_expect_success()
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{
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	_description=$1
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	_test=$2
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	test $# -eq 2 ||
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	error "usage: test_output_expect_success description test <<EOF ... EOF"
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	_name=$(echo $_description | name_from_description)
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	cat >"$_name.expected"
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	test_expect_success "$_description" "check_output $_name \"$_test\""
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}
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