diff options
| -rw-r--r-- | Documentation/git-push.txt | 8 | ||||
| -rw-r--r-- | builtin/push.c | 2 | ||||
| -rw-r--r-- | commit.c | 42 | ||||
| -rw-r--r-- | commit.h | 2 | ||||
| -rw-r--r-- | remote.c | 99 | ||||
| -rw-r--r-- | remote.h | 3 | ||||
| -rwxr-xr-x | t/t5516-fetch-push.sh | 73 | ||||
| -rw-r--r-- | transport.c | 2 | ||||
| -rw-r--r-- | transport.h | 1 |
9 files changed, 218 insertions, 14 deletions
diff --git a/Documentation/git-push.txt b/Documentation/git-push.txt index 577d201c0..eb2883c94 100644 --- a/Documentation/git-push.txt +++ b/Documentation/git-push.txt @@ -9,7 +9,7 @@ git-push - Update remote refs along with associated objects SYNOPSIS -------- [verse] -'git push' [--all | --mirror | --tags] [-n | --dry-run] [--receive-pack=<git-receive-pack>] +'git push' [--all | --mirror | --tags] [--follow-tags] [-n | --dry-run] [--receive-pack=<git-receive-pack>] [--repo=<repository>] [-f | --force] [--prune] [-v | --verbose] [-u | --set-upstream] [<repository> [<refspec>...]] @@ -117,6 +117,12 @@ already exists on the remote side. addition to refspecs explicitly listed on the command line. +--follow-tags:: + Push all the refs that would be pushed without this option, + and also push annotated tags in `refs/tags` that are missing + from the remote but are pointing at committish that are + reachable from the refs being pushed. + --receive-pack=<git-receive-pack>:: --exec=<git-receive-pack>:: Path to the 'git-receive-pack' program on the remote diff --git a/builtin/push.c b/builtin/push.c index 42b129d36..5e4a0e958 100644 --- a/builtin/push.c +++ b/builtin/push.c @@ -437,6 +437,8 @@ int cmd_push(int argc, const char **argv, const char *prefix) OPT_BIT(0, "prune", &flags, N_("prune locally removed refs"), TRANSPORT_PUSH_PRUNE), OPT_BIT(0, "no-verify", &flags, N_("bypass pre-push hook"), TRANSPORT_PUSH_NO_HOOK), + OPT_BIT(0, "follow-tags", &flags, N_("push missing but relevant tags"), + TRANSPORT_PUSH_FOLLOW_TAGS), OPT_END() }; @@ -463,14 +463,23 @@ static void clear_commit_marks_1(struct commit_list **plist, } } -void clear_commit_marks(struct commit *commit, unsigned int mark) +void clear_commit_marks_many(int nr, struct commit **commit, unsigned int mark) { struct commit_list *list = NULL; - commit_list_insert(commit, &list); + + while (nr--) { + commit_list_insert(*commit, &list); + commit++; + } while (list) clear_commit_marks_1(&list, pop_commit(&list), mark); } +void clear_commit_marks(struct commit *commit, unsigned int mark) +{ + clear_commit_marks_many(1, &commit, mark); +} + void clear_commit_marks_for_object_array(struct object_array *a, unsigned mark) { struct object *object; @@ -797,8 +806,7 @@ struct commit_list *get_merge_bases_many(struct commit *one, if (!result || !result->next) { if (cleanup) { clear_commit_marks(one, all_flags); - for (i = 0; i < n; i++) - clear_commit_marks(twos[i], all_flags); + clear_commit_marks_many(n, twos, all_flags); } return result; } @@ -816,8 +824,7 @@ struct commit_list *get_merge_bases_many(struct commit *one, free_commit_list(result); clear_commit_marks(one, all_flags); - for (i = 0; i < n; i++) - clear_commit_marks(twos[i], all_flags); + clear_commit_marks_many(n, twos, all_flags); cnt = remove_redundant(rslt, cnt); result = NULL; @@ -852,25 +859,36 @@ int is_descendant_of(struct commit *commit, struct commit_list *with_commit) } /* - * Is "commit" an ancestor of (i.e. reachable from) the "reference"? + * Is "commit" an ancestor of one of the "references"? */ -int in_merge_bases(struct commit *commit, struct commit *reference) +int in_merge_bases_many(struct commit *commit, int nr_reference, struct commit **reference) { struct commit_list *bases; - int ret = 0; + int ret = 0, i; - if (parse_commit(commit) || parse_commit(reference)) + if (parse_commit(commit)) return ret; + for (i = 0; i < nr_reference; i++) + if (parse_commit(reference[i])) + return ret; - bases = paint_down_to_common(commit, 1, &reference); + bases = paint_down_to_common(commit, nr_reference, reference); if (commit->object.flags & PARENT2) ret = 1; clear_commit_marks(commit, all_flags); - clear_commit_marks(reference, all_flags); + clear_commit_marks_many(nr_reference, reference, all_flags); free_commit_list(bases); return ret; } +/* + * Is "commit" an ancestor of (i.e. reachable from) the "reference"? + */ +int in_merge_bases(struct commit *commit, struct commit *reference) +{ + return in_merge_bases_many(commit, 1, &reference); +} + struct commit_list *reduce_heads(struct commit_list *heads) { struct commit_list *p; @@ -137,6 +137,7 @@ struct commit *pop_most_recent_commit(struct commit_list **list, struct commit *pop_commit(struct commit_list **stack); void clear_commit_marks(struct commit *commit, unsigned int mark); +void clear_commit_marks_many(int nr, struct commit **commit, unsigned int mark); void clear_commit_marks_for_object_array(struct object_array *a, unsigned mark); /* @@ -176,6 +177,7 @@ extern struct commit_list *get_shallow_commits(struct object_array *heads, int is_descendant_of(struct commit *, struct commit_list *); int in_merge_bases(struct commit *, struct commit *); +int in_merge_bases_many(struct commit *, int, struct commit **); extern int interactive_add(int argc, const char **argv, const char *prefix, int patch); extern int run_add_interactive(const char *revision, const char *patch_mode, @@ -1195,6 +1195,101 @@ static struct ref **tail_ref(struct ref **head) return tail; } +struct tips { + struct commit **tip; + int nr, alloc; +}; + +static void add_to_tips(struct tips *tips, const unsigned char *sha1) +{ + struct commit *commit; + + if (is_null_sha1(sha1)) + return; + commit = lookup_commit_reference_gently(sha1, 1); + if (!commit || (commit->object.flags & TMP_MARK)) + return; + commit->object.flags |= TMP_MARK; + ALLOC_GROW(tips->tip, tips->nr + 1, tips->alloc); + tips->tip[tips->nr++] = commit; +} + +static void add_missing_tags(struct ref *src, struct ref **dst, struct ref ***dst_tail) +{ + struct string_list dst_tag = STRING_LIST_INIT_NODUP; + struct string_list src_tag = STRING_LIST_INIT_NODUP; + struct string_list_item *item; + struct ref *ref; + struct tips sent_tips; + + /* + * Collect everything we know they would have at the end of + * this push, and collect all tags they have. + */ + memset(&sent_tips, 0, sizeof(sent_tips)); + for (ref = *dst; ref; ref = ref->next) { + if (ref->peer_ref && + !is_null_sha1(ref->peer_ref->new_sha1)) + add_to_tips(&sent_tips, ref->peer_ref->new_sha1); + else + add_to_tips(&sent_tips, ref->old_sha1); + if (!prefixcmp(ref->name, "refs/tags/")) + string_list_append(&dst_tag, ref->name); + } + clear_commit_marks_many(sent_tips.nr, sent_tips.tip, TMP_MARK); + + sort_string_list(&dst_tag); + + /* Collect tags they do not have. */ + for (ref = src; ref; ref = ref->next) { + if (prefixcmp(ref->name, "refs/tags/")) + continue; /* not a tag */ + if (string_list_has_string(&dst_tag, ref->name)) + continue; /* they already have it */ + if (sha1_object_info(ref->new_sha1, NULL) != OBJ_TAG) + continue; /* be conservative */ + item = string_list_append(&src_tag, ref->name); + item->util = ref; + } + string_list_clear(&dst_tag, 0); + + /* + * At this point, src_tag lists tags that are missing from + * dst, and sent_tips lists the tips we are pushing or those + * that we know they already have. An element in the src_tag + * that is an ancestor of any of the sent_tips needs to be + * sent to the other side. + */ + if (sent_tips.nr) { + for_each_string_list_item(item, &src_tag) { + struct ref *ref = item->util; + struct ref *dst_ref; + struct commit *commit; + + if (is_null_sha1(ref->new_sha1)) + continue; + commit = lookup_commit_reference_gently(ref->new_sha1, 1); + if (!commit) + /* not pushing a commit, which is not an error */ + continue; + + /* + * Is this tag, which they do not have, reachable from + * any of the commits we are sending? + */ + if (!in_merge_bases_many(commit, sent_tips.nr, sent_tips.tip)) + continue; + + /* Add it in */ + dst_ref = make_linked_ref(ref->name, dst_tail); + hashcpy(dst_ref->new_sha1, ref->new_sha1); + dst_ref->peer_ref = copy_ref(ref); + } + } + string_list_clear(&src_tag, 0); + free(sent_tips.tip); +} + /* * Given the set of refs the local repository has, the set of refs the * remote repository has, and the refspec used for push, determine @@ -1257,6 +1352,10 @@ int match_push_refs(struct ref *src, struct ref **dst, free_name: free(dst_name); } + + if (flags & MATCH_REFS_FOLLOW_TAGS) + add_missing_tags(src, dst, &dst_tail); + if (send_prune) { /* check for missing refs on the remote */ for (ref = *dst; ref; ref = ref->next) { @@ -149,7 +149,8 @@ enum match_refs_flags { MATCH_REFS_NONE = 0, MATCH_REFS_ALL = (1 << 0), MATCH_REFS_MIRROR = (1 << 1), - MATCH_REFS_PRUNE = (1 << 2) + MATCH_REFS_PRUNE = (1 << 2), + MATCH_REFS_FOLLOW_TAGS = (1 << 3) }; /* Reporting of tracking info */ diff --git a/t/t5516-fetch-push.sh b/t/t5516-fetch-push.sh index 6fd125aec..d3dc5df7b 100755 --- a/t/t5516-fetch-push.sh +++ b/t/t5516-fetch-push.sh @@ -1077,4 +1077,77 @@ test_expect_success 'fetch exact SHA1' ' ) ' +test_expect_success 'fetch follows tags by default' ' + mk_test heads/master && + rm -fr src dst && + git init src && + ( + cd src && + git pull ../testrepo master && + git tag -m "annotated" tag && + git for-each-ref >tmp1 && + ( + cat tmp1 + sed -n "s|refs/heads/master$|refs/remotes/origin/master|p" tmp1 + ) | + sort -k 3 >../expect + ) && + git init dst && + ( + cd dst && + git remote add origin ../src && + git config branch.master.remote origin && + git config branch.master.merge refs/heads/master && + git pull && + git for-each-ref >../actual + ) && + test_cmp expect actual +' + +test_expect_success 'push does not follow tags by default' ' + mk_test heads/master && + rm -fr src dst && + git init src && + git init --bare dst && + ( + cd src && + git pull ../testrepo master && + git tag -m "annotated" tag && + git checkout -b another && + git commit --allow-empty -m "future commit" && + git tag -m "future" future && + git checkout master && + git for-each-ref refs/heads/master >../expect && + git push ../dst master + ) && + ( + cd dst && + git for-each-ref >../actual + ) && + test_cmp expect actual +' + +test_expect_success 'push --follow-tag only pushes relevant tags' ' + mk_test heads/master && + rm -fr src dst && + git init src && + git init --bare dst && + ( + cd src && + git pull ../testrepo master && + git tag -m "annotated" tag && + git checkout -b another && + git commit --allow-empty -m "future commit" && + git tag -m "future" future && + git checkout master && + git for-each-ref refs/heads/master refs/tags/tag >../expect + git push --follow-tag ../dst master + ) && + ( + cd dst && + git for-each-ref >../actual + ) && + test_cmp expect actual +' + test_done diff --git a/transport.c b/transport.c index 42a61b30b..eb9eb33e0 100644 --- a/transport.c +++ b/transport.c @@ -1128,6 +1128,8 @@ int transport_push(struct transport *transport, match_flags |= MATCH_REFS_MIRROR; if (flags & TRANSPORT_PUSH_PRUNE) match_flags |= MATCH_REFS_PRUNE; + if (flags & TRANSPORT_PUSH_FOLLOW_TAGS) + match_flags |= MATCH_REFS_FOLLOW_TAGS; if (match_push_refs(local_refs, &remote_refs, refspec_nr, refspec, match_flags)) { diff --git a/transport.h b/transport.h index a3450e97c..935446270 100644 --- a/transport.h +++ b/transport.h @@ -105,6 +105,7 @@ struct transport { #define TRANSPORT_PUSH_PRUNE 128 #define TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND 256 #define TRANSPORT_PUSH_NO_HOOK 512 +#define TRANSPORT_PUSH_FOLLOW_TAGS 1024 #define TRANSPORT_SUMMARY_WIDTH (2 * DEFAULT_ABBREV + 3) #define TRANSPORT_SUMMARY(x) (int)(TRANSPORT_SUMMARY_WIDTH + strlen(x) - gettext_width(x)), (x) |