diff options
| -rw-r--r-- | Documentation/fetch-options.txt | 5 | ||||
| -rw-r--r-- | builtin/fetch.c | 59 | ||||
| -rwxr-xr-x | t/t5582-fetch-negative-refspec.sh | 43 |
3 files changed, 106 insertions, 1 deletions
diff --git a/Documentation/fetch-options.txt b/Documentation/fetch-options.txt index 07783deee3..9e7b4e189c 100644 --- a/Documentation/fetch-options.txt +++ b/Documentation/fetch-options.txt @@ -110,6 +110,11 @@ ifndef::git-pull[] setting `fetch.writeCommitGraph`. endif::git-pull[] +--prefetch:: + Modify the configured refspec to place all refs into the + `refs/prefetch/` namespace. See the `prefetch` task in + linkgit:git-maintenance[1]. + -p:: --prune:: Before fetching, remove any remote-tracking references that no diff --git a/builtin/fetch.c b/builtin/fetch.c index 0b90de87c7..97c4fe6e6d 100644 --- a/builtin/fetch.c +++ b/builtin/fetch.c @@ -48,6 +48,7 @@ enum { static int fetch_prune_config = -1; /* unspecified */ static int fetch_show_forced_updates = 1; static uint64_t forced_updates_ms = 0; +static int prefetch = 0; static int prune = -1; /* unspecified */ #define PRUNE_BY_DEFAULT 0 /* do we prune by default? */ @@ -158,6 +159,8 @@ static struct option builtin_fetch_options[] = { N_("do not fetch all tags (--no-tags)"), TAGS_UNSET), OPT_INTEGER('j', "jobs", &max_jobs, N_("number of submodules fetched in parallel")), + OPT_BOOL(0, "prefetch", &prefetch, + N_("modify the refspec to place all refs within refs/prefetch/")), OPT_BOOL('p', "prune", &prune, N_("prune remote-tracking branches no longer on remote")), OPT_BOOL('P', "prune-tags", &prune_tags, @@ -436,6 +439,56 @@ static void find_non_local_tags(const struct ref *refs, oidset_clear(&fetch_oids); } +static void filter_prefetch_refspec(struct refspec *rs) +{ + int i; + + if (!prefetch) + return; + + for (i = 0; i < rs->nr; i++) { + struct strbuf new_dst = STRBUF_INIT; + char *old_dst; + const char *sub = NULL; + + if (rs->items[i].negative) + continue; + if (!rs->items[i].dst || + (rs->items[i].src && + !strncmp(rs->items[i].src, "refs/tags/", 10))) { + int j; + + free(rs->items[i].src); + free(rs->items[i].dst); + + for (j = i + 1; j < rs->nr; j++) { + rs->items[j - 1] = rs->items[j]; + rs->raw[j - 1] = rs->raw[j]; + } + rs->nr--; + i--; + continue; + } + + old_dst = rs->items[i].dst; + strbuf_addstr(&new_dst, "refs/prefetch/"); + + /* + * If old_dst starts with "refs/", then place + * sub after that prefix. Otherwise, start at + * the beginning of the string. + */ + if (!skip_prefix(old_dst, "refs/", &sub)) + sub = old_dst; + strbuf_addstr(&new_dst, sub); + + rs->items[i].dst = strbuf_detach(&new_dst, NULL); + rs->items[i].force = 1; + + free(old_dst); + } +} + static struct ref *get_ref_map(struct remote *remote, const struct ref *remote_refs, struct refspec *rs, @@ -452,6 +505,10 @@ static struct ref *get_ref_map(struct remote *remote, struct hashmap existing_refs; int existing_refs_populated = 0; + filter_prefetch_refspec(rs); + if (remote) + filter_prefetch_refspec(&remote->fetch); + if (rs->nr) { struct refspec *fetch_refspec; @@ -520,7 +577,7 @@ static struct ref *get_ref_map(struct remote *remote, if (has_merge && !strcmp(branch->remote_name, remote->name)) add_merge_config(&ref_map, remote_refs, branch, &tail); - } else { + } else if (!prefetch) { ref_map = get_remote_ref(remote_refs, "HEAD"); if (!ref_map) die(_("Couldn't find remote ref HEAD")); diff --git a/t/t5582-fetch-negative-refspec.sh b/t/t5582-fetch-negative-refspec.sh index f345097277..e5d2e79ad3 100755 --- a/t/t5582-fetch-negative-refspec.sh +++ b/t/t5582-fetch-negative-refspec.sh @@ -240,4 +240,47 @@ test_expect_success "push with matching +: and negative refspec" ' git -C two push -v one ' +test_expect_success '--prefetch correctly modifies refspecs' ' + git -C one config --unset-all remote.origin.fetch && + git -C one config --add remote.origin.fetch ^refs/heads/bogus/ignore && + git -C one config --add remote.origin.fetch "refs/tags/*:refs/tags/*" && + git -C one config --add remote.origin.fetch "refs/heads/bogus/*:bogus/*" && + + git tag -a -m never never-fetch-tag HEAD && + + git branch bogus/fetched HEAD~1 && + git branch bogus/ignore HEAD && + + git -C one fetch --prefetch --no-tags && + test_must_fail git -C one rev-parse never-fetch-tag && + git -C one rev-parse refs/prefetch/bogus/fetched && + test_must_fail git -C one rev-parse refs/prefetch/bogus/ignore && + + # correctly handle when refspec set becomes empty + # after removing the refs/tags/* refspec. + git -C one config --unset-all remote.origin.fetch && + git -C one config --add remote.origin.fetch "refs/tags/*:refs/tags/*" && + + git -C one fetch --prefetch --no-tags && + test_must_fail git -C one rev-parse never-fetch-tag && + + # The refspec for refs that are not fully qualified + # are filtered multiple times. + git -C one rev-parse refs/prefetch/bogus/fetched && + test_must_fail git -C one rev-parse refs/prefetch/bogus/ignore +' + +test_expect_success '--prefetch succeeds when refspec becomes empty' ' + git checkout bogus/fetched && + test_commit extra && + + git -C one config --unset-all remote.origin.fetch && + git -C one config --unset branch.main.remote && + git -C one config remote.origin.fetch "+refs/tags/extra" && + git -C one config remote.origin.skipfetchall true && + git -C one config remote.origin.tagopt "--no-tags" && + + git -C one fetch --prefetch +' + test_done |