[PATCH v3 0/2] ci: link failure and leak annotations to the test script

Link failure and leak annotations in CI to the test script, so both can be found from the job summary.

V3 CI Job where failures and leaks are reported: https://github.com/git/git/actions/runs/36537917146/job/109306215909?pr=2426

Changes in v3:

 * Fixed bug in the --immediate exit ordering: the --immediate &&
   --invert-exit-code path called exit 0 before the test's annotation was
   written, now a single unconditional call covers both exit paths.
 * github_escape_message_ no longer relies on \r being a portable sed escape
   sequence (not POSIX-guaranteed and BSD sed implementations can differ),
   it splices in the literal carriage-return byte via printf instead.
 * Reverted unrelated test-tool line back to its original form.

Changes in v2:

 * Split into two commits, each explaining its own reasoning.
 * Leak output is no longer capped or embedded in the message, it's now an
   uncapped fold, so multiple leaks in the same test both show in full. A
   second leak in a different test still won't show in the same run,
   --immediate stops the script at the first failure, but it no longer gets
   buried under every later test falsely reporting "not ok" either.
 * Drops the giant unfolded message that annotations used to carry, which is
   what probably caused the scrolling behavior.

Harald Nordgren (2):
  ci: annotate leaks and stop a leak-sanitizer script at its first
    failure
  ci: point test failures and fixed known breakages at their file and
    line

 ci/lib.sh                            |  1 +
 t/test-lib-github-workflow-markup.sh | 54 ++++++++++++++++++++++++----
 t/test-lib.sh                        |  6 +++-
 3 files changed, 54 insertions(+), 7 deletions(-)

base-commit: a018953688f1b10bddf91bff8747068f5f4746a4
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-2419%2FHaraldNordgren%2Fci-annotation-file-line-v3
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-2419/HaraldNordgren/ci-annotation-file-line-v3
Pull-Request: https://github.com/git/git/pull/2419

Range-diff vs v2:

 1:  46e13a6e77 ! 1:  b6a36820ae ci: annotate leaks and stop a leak-sanitizer script at its first failure
     @@ t/test-lib.sh: test_failure_ () {
       	say_color error "not ok $test_count - ${pfx:+$pfx }$1"
       	shift
       	printf '%s\n' "$*" | sed -e 's/^/#	/'
     -+	if test -n "$immediate" && test -n "$invert_exit_code"
     -+	then
     -+		say_color error "1..$test_count"
     -+		finalize_test_output
     -+		_invert_exit_code_failure_end_blurb
     -+		GIT_EXIT_OK=t
     -+		exit 0
     -+	fi
     -+	# Write the annotation before the --immediate exit paths below,
     -+	# which call exit and would otherwise skip it.
     ++	# Write the annotation before either --immediate exit path below,
     ++	# both of which call exit and would otherwise skip it.
      +	finalize_test_case_output failure "$failure_label" "$@"
       	if test -n "$immediate"
       	then
       		say_color error "1..$test_count"
     --		if test -n "$invert_exit_code"
     --		then
     --			finalize_test_output
     --			_invert_exit_code_failure_end_blurb
     --			GIT_EXIT_OK=t
     --			exit 0
     --		fi
     +@@ t/test-lib.sh: test_failure_ () {
       		check_test_results_san_file_ "$test_failure"
       		_error_exit
       	fi
 2:  bffa8fb030 ! 2:  750c360512 ci: point test failures and fixed known breakages at their file and line
     @@ t/test-lib-github-workflow-markup.sh: start_test_output () {
      +github_escape_message_ () {
      +	# A test description is always one line, so only % and CR need
      +	# escaping here. Escape % first, or CR's own %-encoding gets mangled.
     -+	sed -e 's/%/%25/g' -e 's/\r/%0D/g'
     ++	# \r is not a portable sed escape, so splice in the actual byte.
     ++	sed -e 's/%/%25/g' -e "s/$(printf '\r')/%0D/g"
      +}
      +
      +find_test_case_line_ () {
     @@ t/test-lib-github-workflow-markup.sh: github_annotation_ () {
       	esac
      +
       	echo >>$github_markup_output "::group::$test_case_result: $this_test.$test_count $*"
     --	test-tool >>$github_markup_output path-utils skip-n-bytes \
     --		"$GIT_TEST_TEE_OUTPUT_FILE" $GIT_TEST_TEE_OFFSET
     -+	test-tool path-utils skip-n-bytes \
     -+		"$GIT_TEST_TEE_OUTPUT_FILE" $GIT_TEST_TEE_OFFSET >>$github_markup_output
     - 	echo >>$github_markup_output "::endgroup::"
     - }
     - 
     + 	test-tool >>$github_markup_output path-utils skip-n-bytes \
     + 		"$GIT_TEST_TEE_OUTPUT_FILE" $GIT_TEST_TEE_OFFSET