diff options
| -rw-r--r-- | Documentation/git-branch.txt | 8 | ||||
| -rw-r--r-- | branch.c | 31 | ||||
| -rw-r--r-- | builtin-branch.c | 2 | ||||
| -rw-r--r-- | cache.h | 1 | ||||
| -rwxr-xr-x | t/t6040-tracking-info.sh | 21 |
5 files changed, 52 insertions, 11 deletions
diff --git a/Documentation/git-branch.txt b/Documentation/git-branch.txt index 0e836809c..a0d6a7a64 100644 --- a/Documentation/git-branch.txt +++ b/Documentation/git-branch.txt @@ -11,7 +11,7 @@ SYNOPSIS 'git branch' [--color | --no-color] [-r | -a] [-v [--abbrev=<length> | --no-abbrev]] [(--merged | --no-merged | --contains) [<commit>]] -'git branch' [--track | --no-track] [-l] [-f] <branchname> [<start-point>] +'git branch' [--set-upstream | --track | --no-track] [-l] [-f] <branchname> [<start-point>] 'git branch' (-m | -M) [<oldbranch>] <newbranch> 'git branch' (-d | -D) [-r] <branchname>... @@ -129,6 +129,12 @@ start-point is either a local or remote branch. Do not set up "upstream" configuration, even if the branch.autosetupmerge configuration variable is true. +--set-upstream:: + If specified branch does not exist yet or if '--force' has been + given, acts exactly like '--track'. Otherwise sets up configuration + like '--track' would when creating the branch, except that where + branch points to is not changed. + --contains <commit>:: Only list branches which contain the specified commit. @@ -108,6 +108,7 @@ static int setup_tracking(const char *new_ref, const char *orig_ref, switch (track) { case BRANCH_TRACK_ALWAYS: case BRANCH_TRACK_EXPLICIT: + case BRANCH_TRACK_OVERRIDE: break; default: return 1; @@ -128,18 +129,25 @@ void create_branch(const char *head, const char *name, const char *start_name, int force, int reflog, enum branch_track track) { - struct ref_lock *lock; + struct ref_lock *lock = NULL; struct commit *commit; unsigned char sha1[20]; char *real_ref, msg[PATH_MAX + 20]; struct strbuf ref = STRBUF_INIT; int forcing = 0; + int dont_change_ref = 0; + int explicit_tracking = 0; + + if (track == BRANCH_TRACK_EXPLICIT || track == BRANCH_TRACK_OVERRIDE) + explicit_tracking = 1; if (strbuf_check_branch_ref(&ref, name)) die("'%s' is not a valid branch name.", name); if (resolve_ref(ref.buf, sha1, 1, NULL)) { - if (!force) + if (!force && track == BRANCH_TRACK_OVERRIDE) + dont_change_ref = 1; + else if (!force) die("A branch named '%s' already exists.", name); else if (!is_bare_repository() && !strcmp(head, name)) die("Cannot force update the current branch."); @@ -153,12 +161,12 @@ void create_branch(const char *head, switch (dwim_ref(start_name, strlen(start_name), sha1, &real_ref)) { case 0: /* Not branching from any existing branch */ - if (track == BRANCH_TRACK_EXPLICIT) + if (explicit_tracking) die("Cannot setup tracking information; starting point is not a branch."); break; case 1: /* Unique completion -- good, only if it is a real ref */ - if (track == BRANCH_TRACK_EXPLICIT && !strcmp(real_ref, "HEAD")) + if (explicit_tracking && !strcmp(real_ref, "HEAD")) die("Cannot setup tracking information; starting point is not a branch."); break; default: @@ -170,9 +178,11 @@ void create_branch(const char *head, die("Not a valid branch point: '%s'.", start_name); hashcpy(sha1, commit->object.sha1); - lock = lock_any_ref_for_update(ref.buf, NULL, 0); - if (!lock) - die_errno("Failed to lock ref for update"); + if (!dont_change_ref) { + lock = lock_any_ref_for_update(ref.buf, NULL, 0); + if (!lock) + die_errno("Failed to lock ref for update"); + } if (reflog) log_all_ref_updates = 1; @@ -180,15 +190,16 @@ void create_branch(const char *head, if (forcing) snprintf(msg, sizeof msg, "branch: Reset from %s", start_name); - else + else if (!dont_change_ref) snprintf(msg, sizeof msg, "branch: Created from %s", start_name); if (real_ref && track) setup_tracking(name, real_ref, track); - if (write_ref_sha1(lock, sha1, msg) < 0) - die_errno("Failed to write ref"); + if (!dont_change_ref) + if (write_ref_sha1(lock, sha1, msg) < 0) + die_errno("Failed to write ref"); strbuf_release(&ref); free(real_ref); diff --git a/builtin-branch.c b/builtin-branch.c index ddc9f2dab..970cf3181 100644 --- a/builtin-branch.c +++ b/builtin-branch.c @@ -564,6 +564,8 @@ int cmd_branch(int argc, const char **argv, const char *prefix) OPT__VERBOSE(&verbose), OPT_SET_INT('t', "track", &track, "set up tracking mode (see git-pull(1))", BRANCH_TRACK_EXPLICIT), + OPT_SET_INT( 0, "set-upstream", &track, "change upstream info", + BRANCH_TRACK_OVERRIDE), OPT_BOOLEAN( 0 , "color", &branch_use_color, "use colored output"), OPT_SET_INT('r', NULL, &kinds, "act on remote-tracking branches", REF_REMOTE_BRANCH), @@ -553,6 +553,7 @@ enum branch_track { BRANCH_TRACK_REMOTE, BRANCH_TRACK_ALWAYS, BRANCH_TRACK_EXPLICIT, + BRANCH_TRACK_OVERRIDE, }; enum rebase_setup_type { diff --git a/t/t6040-tracking-info.sh b/t/t6040-tracking-info.sh index 664b0f805..1785e178a 100755 --- a/t/t6040-tracking-info.sh +++ b/t/t6040-tracking-info.sh @@ -89,4 +89,25 @@ test_expect_success 'status when tracking annotated tags' ' grep "set up to track" actual && git checkout heavytrack ' + +test_expect_success 'setup tracking with branch --set-upstream on existing branch' ' + git branch from-master master && + test_must_fail git config branch.from-master.merge > actual && + git branch --set-upstream from-master master && + git config branch.from-master.merge > actual && + grep -q "^refs/heads/master$" actual +' + +test_expect_success '--set-upstream does not change branch' ' + git branch from-master2 master && + test_must_fail git config branch.from-master2.merge > actual && + git rev-list from-master2 && + git update-ref refs/heads/from-master2 from-master2^ && + git rev-parse from-master2 >expect2 && + git branch --set-upstream from-master2 master && + git config branch.from-master.merge > actual && + git rev-parse from-master2 >actual2 && + grep -q "^refs/heads/master$" actual && + cmp expect2 actual2 +' test_done |