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submodule-config: passing name reference for .gitmodule blobs

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Commit 959b5455 (submodule: implement a config API for lookup of
.gitmodules values, 2015-08-18) implemented the initial version of the
submodule config cache. During development of that initial version we
extracted the function gitmodule_sha1_from_commit(). During that process
we missed that the strbuf rev was still used in config_from() and now is
left empty. Lets fix this by also returning this string.

This means that now when reading .gitmodules from revisions, the error
messages also contain a reference to the blob they are from.

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Heiko Voigt 2016-07-28 14:49:11 +02:00 committed by Junio C Hamano
parent 508a285cea
commit 514dea905a
2 changed files with 28 additions and 9 deletions
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26
submodule-config.c
View File

@ -349,9 +349,9 @@ static int parse_config(const char *var, const char *value, void *data)
}
static int gitmodule_sha1_from_commit(const unsigned char *commit_sha1,
unsigned char *gitmodules_sha1)
unsigned char *gitmodules_sha1,
struct strbuf *rev)
{
struct strbuf rev = STRBUF_INIT;
int ret = 0;
if (is_null_sha1(commit_sha1)) {
@ -359,11 +359,10 @@ static int gitmodule_sha1_from_commit(const unsigned char *commit_sha1,
return 1;
}
strbuf_addf(&rev, "%s:.gitmodules", sha1_to_hex(commit_sha1));
if (get_sha1(rev.buf, gitmodules_sha1) >= 0)
strbuf_addf(rev, "%s:.gitmodules", sha1_to_hex(commit_sha1));
if (get_sha1(rev->buf, gitmodules_sha1) >= 0)
ret = 1;
strbuf_release(&rev);
return ret;
}
@ -375,6 +374,7 @@ static const struct submodule *config_from(struct submodule_cache *cache,
const unsigned char *commit_sha1, const char *key,
enum lookup_type lookup_type)
{
struct strbuf rev = STRBUF_INIT;
unsigned long config_size;
char *config;
unsigned char sha1[20];
@ -397,8 +397,10 @@ static const struct submodule *config_from(struct submodule_cache *cache,
return entry->config;
}
if (!gitmodule_sha1_from_commit(commit_sha1, sha1))
if (!gitmodule_sha1_from_commit(commit_sha1, sha1, &rev)) {
strbuf_release(&rev);
return NULL;
}
switch (lookup_type) {
case lookup_name:
@ -408,14 +410,19 @@ static const struct submodule *config_from(struct submodule_cache *cache,
submodule = cache_lookup_path(cache, sha1, key);
break;
}
if (submodule)
if (submodule) {
strbuf_release(&rev);
return submodule;
}
config = read_sha1_file(sha1, &type, &config_size);
if (!config)
if (!config) {
strbuf_release(&rev);
return NULL;
}
if (type != OBJ_BLOB) {
strbuf_release(&rev);
free(config);
return NULL;
}
@ -425,8 +432,9 @@ static const struct submodule *config_from(struct submodule_cache *cache,
parameter.commit_sha1 = commit_sha1;
parameter.gitmodules_sha1 = sha1;
parameter.overwrite = 0;
git_config_from_mem(parse_config, "submodule-blob", "",
git_config_from_mem(parse_config, "submodule-blob", rev.buf,
config, config_size, &parameter);
strbuf_release(&rev);
free(config);
switch (lookup_type) {

11
t/t7411-submodule-config.sh
View File

@ -82,6 +82,17 @@ test_expect_success 'error in one submodule config lets continue' '
)
'
test_expect_success 'error message contains blob reference' '
(cd super &&
sha1=$(git rev-parse HEAD) &&
test-submodule-config \
HEAD b \
HEAD submodule \
2>actual_err &&
grep "submodule-blob $sha1:.gitmodules" actual_err >/dev/null
)
'
cat >super/expect_url <<EOF
Submodule url: 'git@somewhere.else.net:a.git' for path 'b'
Submodule url: 'git@somewhere.else.net:submodule.git' for path 'submodule'