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authorNguyễn Thái Ngọc Duy <pclouds@gmail.com>2018-04-18 14:53:37 (GMT)
committerJunio C Hamano <gitster@pobox.com>2018-04-18 21:24:23 (GMT)
commit0b5e2ea7cf3b0fd0f4339b7c8b69cb8c5853c0cd (patch)
treef390f4469b708903d71b5fbea068aaf256f3ea9d /builtin
parenta9f8a37584a6d3e4702ce115476bebda20d871d3 (diff)
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submodule--helper: don't print null in 'submodule status'
The function compute_rev_name() can return NULL sometimes (e.g. right after 'submodule init'). The current code makes 'submodule status' print this: 19d97bf5af05312267c2e874ee6bcf584d9e9681 sha1collisiondetection ((null)) This ugly 'null' adds no value to the user using this command. More importantly printf() on some platform can't handle NULL as a string and will crash instead of printing '(null)'. Check for this and skip printing this part (the alternative is printing '(n/a)' or something but I think that is just noise). Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Reviewed-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin')
-rw-r--r--builtin/submodule--helper.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index a4193c0..d85b29b 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -562,8 +562,12 @@ static void print_status(unsigned int flags, char state, const char *path,
printf("%c%s %s", state, oid_to_hex(oid), displaypath);
- if (state == ' ' || state == '+')
- printf(" (%s)", compute_rev_name(path, oid_to_hex(oid)));
+ if (state == ' ' || state == '+') {
+ const char *name = compute_rev_name(path, oid_to_hex(oid));
+
+ if (name)
+ printf(" (%s)", name);
+ }
printf("\n");
}