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fetch: refactor to make function args narrower 

Refactor find_non_local_tags and get_ref_map to only take the
information they need instead of the entire transport struct. Besides
improving code clarity, this also improves their flexibility, allowing
for a different set of refs to be used instead of relying on the ones
stored in the transport struct.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Brandon Williams 2018-06-27 15:30:21 -07:00 committed by Junio C Hamano
parent 05c4422676
commit 6d1700d564
1 changed files with 26 additions and 26 deletions
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52
builtin/fetch.c
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@ -254,9 +254,9 @@ static int will_fetch(struct ref **head, const unsigned char *sha1)
return 0;
}
static void find_non_local_tags(struct transport *transport,
struct ref **head,
struct ref ***tail)
static void find_non_local_tags(const struct ref *refs,
struct ref **head,
struct ref ***tail)
{
struct string_list existing_refs = STRING_LIST_INIT_DUP;
struct string_list remote_refs = STRING_LIST_INIT_NODUP;
@ -264,7 +264,7 @@ static void find_non_local_tags(struct transport *transport,
struct string_list_item *item = NULL;
for_each_ref(add_existing, &existing_refs);
for (ref = transport_get_remote_refs(transport, NULL); ref; ref = ref->next) {
for (ref = refs; ref; ref = ref->next) {
if (!starts_with(ref->name, "refs/tags/"))
continue;
@ -338,7 +338,8 @@ static void find_non_local_tags(struct transport *transport,
string_list_clear(&remote_refs, 0);
}
static struct ref *get_ref_map(struct transport *transport,
static struct ref *get_ref_map(struct remote *remote,
const struct ref *remote_refs,
struct refspec *rs,
int tags, int *autotags)
{
@ -346,27 +347,11 @@ static struct ref *get_ref_map(struct transport *transport,
struct ref *rm;
struct ref *ref_map = NULL;
struct ref **tail = &ref_map;
struct argv_array ref_prefixes = ARGV_ARRAY_INIT;
/* opportunistically-updated references: */
struct ref *orefs = NULL, **oref_tail = &orefs;
struct string_list existing_refs = STRING_LIST_INIT_DUP;
const struct ref *remote_refs;
if (rs->nr)
refspec_ref_prefixes(rs, &ref_prefixes);
else if (transport->remote && transport->remote->fetch.nr)
refspec_ref_prefixes(&transport->remote->fetch, &ref_prefixes);
if (ref_prefixes.argc &&
(tags == TAGS_SET || (tags == TAGS_DEFAULT && !rs->nr))) {
argv_array_push(&ref_prefixes, "refs/tags/");
}
remote_refs = transport_get_remote_refs(transport, &ref_prefixes);
argv_array_clear(&ref_prefixes);
if (rs->nr) {
struct refspec *fetch_refspec;
@ -403,7 +388,7 @@ static struct ref *get_ref_map(struct transport *transport,
if (refmap.nr)
fetch_refspec = &refmap;
else
fetch_refspec = &transport->remote->fetch;
fetch_refspec = &remote->fetch;
for (i = 0; i < fetch_refspec->nr; i++)
get_fetch_map(ref_map, &fetch_refspec->items[i], &oref_tail, 1);
@ -411,7 +396,6 @@ static struct ref *get_ref_map(struct transport *transport,
die("--refmap option is only meaningful with command-line refspec(s).");
} else {
/* Use the defaults */
struct remote *remote = transport->remote;
struct branch *branch = branch_get(NULL);
int has_merge = branch_has_merge_config(branch);
if (remote &&
@ -450,7 +434,7 @@ static struct ref *get_ref_map(struct transport *transport,
/* also fetch all tags */
get_fetch_map(remote_refs, tag_refspec, &tail, 0);
else if (tags == TAGS_DEFAULT && *autotags)
find_non_local_tags(transport, &ref_map, &tail);
find_non_local_tags(remote_refs, &ref_map, &tail);
/* Now append any refs to be updated opportunistically: */
*tail = orefs;
@ -1143,6 +1127,8 @@ static int do_fetch(struct transport *transport,
struct ref *ref_map;
int autotags = (transport->remote->fetch_tags == 1);
int retcode = 0;
const struct ref *remote_refs;
struct argv_array ref_prefixes = ARGV_ARRAY_INIT;
if (tags == TAGS_DEFAULT) {
if (transport->remote->fetch_tags == 2)
@ -1158,7 +1144,21 @@ static int do_fetch(struct transport *transport,
goto cleanup;
}
ref_map = get_ref_map(transport, rs, tags, &autotags);
if (rs->nr)
refspec_ref_prefixes(rs, &ref_prefixes);
else if (transport->remote && transport->remote->fetch.nr)
refspec_ref_prefixes(&transport->remote->fetch, &ref_prefixes);
if (ref_prefixes.argc &&
(tags == TAGS_SET || (tags == TAGS_DEFAULT && !rs->nr))) {
argv_array_push(&ref_prefixes, "refs/tags/");
}
remote_refs = transport_get_remote_refs(transport, &ref_prefixes);
argv_array_clear(&ref_prefixes);
ref_map = get_ref_map(transport->remote, remote_refs, rs,
tags, &autotags);
if (!update_head_ok)
check_not_current_branch(ref_map);
@ -1190,7 +1190,7 @@ static int do_fetch(struct transport *transport,
if (tags == TAGS_DEFAULT && autotags) {
struct ref **tail = &ref_map;
ref_map = NULL;
find_non_local_tags(transport, &ref_map, &tail);
find_non_local_tags(remote_refs, &ref_map, &tail);
if (ref_map)
backfill_tags(transport, ref_map);
free_refs(ref_map);