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authorLibravatar Junio C Hamano <gitster@pobox.com>2018-10-16 16:16:02 +0900
committerLibravatar Junio C Hamano <gitster@pobox.com>2018-10-16 16:16:02 +0900
commit993fa5625876306ff1de0cbc5d70fc1b232568b9 (patch)
tree3b189efca15713a184fa054404745626d9306c6b
parentMerge branch 'jn/gc-auto-prep' (diff)
parentgc: do not return error for prior errors in daemonized mode (diff)
downloadtgif-993fa5625876306ff1de0cbc5d70fc1b232568b9.tar.xz
Merge branch 'jn/gc-auto'
"gc --auto" ended up calling exit(-1) upon error, which has been corrected to use exit(1). Also the error reporting behaviour when daemonized has been updated to exit with zero status when stopping due to a previously discovered error (which implies there is no point running gc to improve the situation); we used to exit with failure in such a case. * jn/gc-auto: gc: do not return error for prior errors in daemonized mode
-rw-r--r--Documentation/config.txt3
-rw-r--r--builtin/gc.c33
-rwxr-xr-xt/t6500-gc.sh6
3 files changed, 32 insertions, 10 deletions
diff --git a/Documentation/config.txt b/Documentation/config.txt
index c9f8b72df7..7d58253368 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -1643,7 +1643,8 @@ gc.writeCommitGraph::
for details.
gc.logExpiry::
- If the file gc.log exists, then `git gc --auto` won't run
+ If the file gc.log exists, then `git gc --auto` will print
+ its content and exit with status zero instead of running
unless that file is more than 'gc.logExpiry' old. Default is
"1.day". See `gc.pruneExpire` for more ways to specify its
value.
diff --git a/builtin/gc.c b/builtin/gc.c
index 705c3d3851..871a56f1c5 100644
--- a/builtin/gc.c
+++ b/builtin/gc.c
@@ -441,9 +441,15 @@ static const char *lock_repo_for_gc(int force, pid_t* ret_pid)
return NULL;
}
-static void report_last_gc_error(void)
+/*
+ * Returns 0 if there was no previous error and gc can proceed, 1 if
+ * gc should not proceed due to an error in the last run. Prints a
+ * message and returns -1 if an error occured while reading gc.log
+ */
+static int report_last_gc_error(void)
{
struct strbuf sb = STRBUF_INIT;
+ int ret = 0;
ssize_t len;
struct stat st;
char *gc_log_path = git_pathdup("gc.log");
@@ -452,7 +458,8 @@ static void report_last_gc_error(void)
if (errno == ENOENT)
goto done;
- die_errno(_("cannot stat '%s'"), gc_log_path);
+ ret = error_errno(_("cannot stat '%s'"), gc_log_path);
+ goto done;
}
if (st.st_mtime < gc_log_expire_time)
@@ -460,18 +467,26 @@ static void report_last_gc_error(void)
len = strbuf_read_file(&sb, gc_log_path, 0);
if (len < 0)
- die_errno(_("cannot read '%s'"), gc_log_path);
- else if (len > 0)
- die(_("The last gc run reported the following. "
+ ret = error_errno(_("cannot read '%s'"), gc_log_path);
+ else if (len > 0) {
+ /*
+ * A previous gc failed. Report the error, and don't
+ * bother with an automatic gc run since it is likely
+ * to fail in the same way.
+ */
+ warning(_("The last gc run reported the following. "
"Please correct the root cause\n"
"and remove %s.\n"
"Automatic cleanup will not be performed "
"until the file is removed.\n\n"
"%s"),
gc_log_path, sb.buf);
+ ret = 1;
+ }
strbuf_release(&sb);
done:
free(gc_log_path);
+ return ret;
}
static void gc_before_repack(void)
@@ -564,7 +579,13 @@ int cmd_gc(int argc, const char **argv, const char *prefix)
fprintf(stderr, _("See \"git help gc\" for manual housekeeping.\n"));
}
if (detach_auto) {
- report_last_gc_error(); /* dies on error */
+ int ret = report_last_gc_error();
+ if (ret < 0)
+ /* an I/O error occured, already reported */
+ exit(128);
+ if (ret == 1)
+ /* Last gc --auto failed. Skip this one. */
+ return 0;
if (lock_repo_for_gc(force, &pid))
return 0;
diff --git a/t/t6500-gc.sh b/t/t6500-gc.sh
index 76a2d25dd2..4684d06552 100755
--- a/t/t6500-gc.sh
+++ b/t/t6500-gc.sh
@@ -137,11 +137,11 @@ test_expect_success 'background auto gc does not run if gc.log is present and re
test_config gc.autopacklimit 1 &&
test_config gc.autodetach true &&
echo fleem >.git/gc.log &&
- test_must_fail git gc --auto 2>err &&
- test_i18ngrep "^fatal:" err &&
+ git gc --auto 2>err &&
+ test_i18ngrep "^warning:" err &&
test_config gc.logexpiry 5.days &&
test-tool chmtime =-345600 .git/gc.log &&
- test_must_fail git gc --auto &&
+ git gc --auto &&
test_config gc.logexpiry 2.days &&
run_and_wait_for_auto_gc &&
ls .git/objects/pack/pack-*.pack >packs &&