[PATCH v4 17/33] submodule--helper: refactor "errmsg_str" to be a "struct strbuf"
From: Ævar Arnfjörð Bjarmason <hidden>
Date: 2022-08-31 23:19:13
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Glen Choo <redacted> Refactor code added in e83e3333b57 (submodule: port submodule subcommand 'summary' from shell to C, 2020-08-13) so that "errmsg" and "errmsg_str" are folded into one. The distinction between the empty string and NULL is something that's tested for by e.g. "t/t7401-submodule-summary.sh". This is in preparation for fixing a memory leak the "struct strbuf" in the pre-image. Let's also pass a "const char *" to print_submodule_summary(), as it should not be modifying the "errmsg". Signed-off-by: Glen Choo <redacted> Signed-off-by: Ævar Arnfjörð Bjarmason <redacted> --- builtin/submodule--helper.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index 4e3bb54afa2..07a918f7373 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c@@ -761,7 +761,7 @@ static char *verify_submodule_committish(const char *sm_path, return strbuf_detach(&result, NULL); } -static void print_submodule_summary(struct summary_cb *info, char *errmsg, +static void print_submodule_summary(struct summary_cb *info, const char *errmsg, int total_commits, const char *displaypath, const char *src_abbrev, const char *dst_abbrev, struct module_cb *p)
@@ -819,7 +819,7 @@ static void generate_submodule_summary(struct summary_cb *info, { char *displaypath, *src_abbrev = NULL, *dst_abbrev; int missing_src = 0, missing_dst = 0; - char *errmsg = NULL; + struct strbuf errmsg = STRBUF_INIT; int total_commits = -1; if (!info->cached && oideq(&p->oid_dst, null_oid())) {
@@ -920,23 +920,21 @@ static void generate_submodule_summary(struct summary_cb *info, * submodule, i.e., deleted or changed to blob */ if (S_ISGITLINK(p->mod_dst)) { - struct strbuf errmsg_str = STRBUF_INIT; if (missing_src && missing_dst) { - strbuf_addf(&errmsg_str, " Warn: %s doesn't contain commits %s and %s\n", + strbuf_addf(&errmsg, " Warn: %s doesn't contain commits %s and %s\n", displaypath, oid_to_hex(&p->oid_src), oid_to_hex(&p->oid_dst)); } else { - strbuf_addf(&errmsg_str, " Warn: %s doesn't contain commit %s\n", + strbuf_addf(&errmsg, " Warn: %s doesn't contain commit %s\n", displaypath, missing_src ? oid_to_hex(&p->oid_src) : oid_to_hex(&p->oid_dst)); } - errmsg = strbuf_detach(&errmsg_str, NULL); } } - print_submodule_summary(info, errmsg, total_commits, - displaypath, src_abbrev, + print_submodule_summary(info, errmsg.len ? errmsg.buf : NULL, + total_commits, displaypath, src_abbrev, dst_abbrev, p); free(displaypath);
--
2.37.3.1420.g76f8a3d556c