From 89294d143d42db2540ec587d0bce20c6c7718051 Mon Sep 17 00:00:00 2001 From: Jeff King Date: Sat, 19 Apr 2014 15:19:19 -0400 Subject: run_external_diff: clean up error handling When the external diff reports an error, we try to clean up and die. However, we can make this process a bit simpler: 1. We do not need to bother freeing memory, since we are about to exit. Nor do we need to clean up our tempfiles, since the atexit() handler will do it for us. So we can die as soon as we see the error. 3. We can just call die() rather than fprintf/exit. This does technically change our exit code, but the exit code of "1" is not meaningful here. In fact, it is probably wrong, since "1" from diff usually means "completed successfully, but there were differences". And while we're there, we can mark the error message for translation, and drop the full stop at the end to make it more like our other messages. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano --- diff.c | 9 +++------ t/t7800-difftool.sh | 2 +- 2 files changed, 4 insertions(+), 7 deletions(-) diff --git a/diff.c b/diff.c index c7b433ffcd..174f146d0d 100644 --- a/diff.c +++ b/diff.c @@ -2909,7 +2909,6 @@ static void run_external_diff(const char *pgm, { struct argv_array argv = ARGV_ARRAY_INIT; struct argv_array env = ARGV_ARRAY_INIT; - int retval; struct diff_queue_struct *q = &diff_queued_diff; if (one && two) { @@ -2938,14 +2937,12 @@ static void run_external_diff(const char *pgm, argv_array_pushf(&env, "GIT_DIFF_PATH_COUNTER=%d", ++o->diff_path_counter); argv_array_pushf(&env, "GIT_DIFF_PATH_TOTAL=%d", q->nr); - retval = run_command_v_opt_cd_env(argv.argv, RUN_USING_SHELL, NULL, env.argv); + if (run_command_v_opt_cd_env(argv.argv, RUN_USING_SHELL, NULL, env.argv)) + die(_("external diff died, stopping at %s"), name); + remove_tempfile(); argv_array_clear(&argv); argv_array_clear(&env); - if (retval) { - fprintf(stderr, "external diff died, stopping at %s.\n", name); - exit(1); - } } static int similarity_index(struct diff_filepair *p) diff --git a/t/t7800-difftool.sh b/t/t7800-difftool.sh index 5a193c500d..dc30a514bf 100755 --- a/t/t7800-difftool.sh +++ b/t/t7800-difftool.sh @@ -58,7 +58,7 @@ test_expect_success PERL 'custom tool commands override built-ins' ' test_expect_success PERL 'difftool ignores bad --tool values' ' : >expect && - test_expect_code 1 \ + test_must_fail \ git difftool --no-prompt --tool=bad-tool branch >actual && test_cmp expect actual ' -- cgit v1.2.3