From d3b9ac07eb44974bb619d71fc6c81c9f2036b96c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Nguy=E1=BB=85n=20Th=C3=A1i=20Ng=E1=BB=8Dc=20Duy?= Date: Fri, 22 Apr 2016 20:01:27 +0700 Subject: worktree.c: make find_shared_symref() return struct worktree * MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This gives the caller more information and they can answer things like, "is it the main worktree" or "is it the current worktree". The latter question is needed for the "checkout a rebase branch" case later. Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano --- builtin/branch.c | 8 ++++---- builtin/notes.c | 8 ++++---- 2 files changed, 8 insertions(+), 8 deletions(-) (limited to 'builtin') diff --git a/builtin/branch.c b/builtin/branch.c index 0adba629d2..bcde87d8e7 100644 --- a/builtin/branch.c +++ b/builtin/branch.c @@ -220,12 +220,12 @@ static int delete_branches(int argc, const char **argv, int force, int kinds, name = mkpathdup(fmt, bname.buf); if (kinds == FILTER_REFS_BRANCHES) { - char *worktree = find_shared_symref("HEAD", name); - if (worktree) { + const struct worktree *wt = + find_shared_symref("HEAD", name); + if (wt) { error(_("Cannot delete branch '%s' " "checked out at '%s'"), - bname.buf, worktree); - free(worktree); + bname.buf, wt->path); ret = 1; continue; } diff --git a/builtin/notes.c b/builtin/notes.c index 6fd058de92..c65b59ad9a 100644 --- a/builtin/notes.c +++ b/builtin/notes.c @@ -847,15 +847,15 @@ static int merge(int argc, const char **argv, const char *prefix) update_ref(msg.buf, default_notes_ref(), result_sha1, NULL, 0, UPDATE_REFS_DIE_ON_ERR); else { /* Merge has unresolved conflicts */ - char *existing; + const struct worktree *wt; /* Update .git/NOTES_MERGE_PARTIAL with partial merge result */ update_ref(msg.buf, "NOTES_MERGE_PARTIAL", result_sha1, NULL, 0, UPDATE_REFS_DIE_ON_ERR); /* Store ref-to-be-updated into .git/NOTES_MERGE_REF */ - existing = find_shared_symref("NOTES_MERGE_REF", default_notes_ref()); - if (existing) + wt = find_shared_symref("NOTES_MERGE_REF", default_notes_ref()); + if (wt) die(_("A notes merge into %s is already in-progress at %s"), - default_notes_ref(), existing); + default_notes_ref(), wt->path); if (create_symref("NOTES_MERGE_REF", default_notes_ref(), NULL)) die("Failed to store link to current notes ref (%s)", default_notes_ref()); -- cgit v1.2.3 From 8d9fdd7087d0c2700a56e20043d5d79c9951f64f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Nguy=E1=BB=85n=20Th=C3=A1i=20Ng=E1=BB=8Dc=20Duy?= Date: Fri, 22 Apr 2016 20:01:33 +0700 Subject: worktree.c: check whether branch is rebased in another worktree MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This function find_shared_symref() is used in a couple places: 1) in builtin/branch.c: it's used to detect if a branch is checked out elsewhere and refuse to delete the branch. 2) in builtin/notes.c: it's used to detect if a note is being merged in another worktree 3) in branch.c, the function die_if_checked_out() is actually used by "git checkout" and "git worktree add" to see if a branch is already checked out elsewhere and refuse the operation. In cases 1 and 3, if a rebase is ongoing, "HEAD" will be in detached mode, find_shared_symref() fails to detect it and declares "no branch is checked out here", which is not really what we want. This patch tightens the test. If the given symref is "HEAD", we try to detect if rebase is ongoing. If so return the branch being rebased. This makes checkout and branch delete operations safer because you can't checkout a branch being rebased in another place, or delete it. Special case for checkout. If the current branch is being rebased, git-rebase.sh may use "git checkout" to abort and return back to the original branch. The updated test in find_shared_symref() will prevent that and "git rebase --abort" will fail as a result. find_shared_symref() and die_if_checked_out() have to learn a new option ignore_current_worktree to loosen the test a bit. Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano --- builtin/checkout.c | 2 +- builtin/worktree.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'builtin') diff --git a/builtin/checkout.c b/builtin/checkout.c index efcbd8f6b5..6041718783 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -1111,7 +1111,7 @@ static int checkout_branch(struct checkout_opts *opts, char *head_ref = resolve_refdup("HEAD", 0, sha1, &flag); if (head_ref && (!(flag & REF_ISSYMREF) || strcmp(head_ref, new->path))) - die_if_checked_out(new->path); + die_if_checked_out(new->path, 1); free(head_ref); } diff --git a/builtin/worktree.c b/builtin/worktree.c index d8e3795dc4..12c0af723e 100644 --- a/builtin/worktree.c +++ b/builtin/worktree.c @@ -205,7 +205,7 @@ static int add_worktree(const char *path, const char *refname, if (!opts->detach && !strbuf_check_branch_ref(&symref, refname) && ref_exists(symref.buf)) { /* it's a branch */ if (!opts->force) - die_if_checked_out(symref.buf); + die_if_checked_out(symref.buf, 0); } else { /* must be a commit */ commit = lookup_commit_reference_by_name(refname); if (!commit) @@ -349,7 +349,7 @@ static int add(int ac, const char **av, const char *prefix) if (!opts.force && !strbuf_check_branch_ref(&symref, opts.new_branch) && ref_exists(symref.buf)) - die_if_checked_out(symref.buf); + die_if_checked_out(symref.buf, 0); strbuf_release(&symref); } -- cgit v1.2.3 From 14ace5b77b493506a1f8ffde96a2f49cc7bc4db0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Nguy=E1=BB=85n=20Th=C3=A1i=20Ng=E1=BB=8Dc=20Duy?= Date: Fri, 22 Apr 2016 20:01:36 +0700 Subject: branch: do not rename a branch under bisect or rebase MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The branch name in that case could be saved in rebase's head_name or bisect's BISECT_START files. Ideally we should try to update them as well. But it's trickier (*). Let's play safe and see if the user complains about inconveniences before doing that. (*) If we do it, bisect and rebase need to provide an API to rename branches. We can't do it in worktree.c or builtin/branch.c because when other people change rebase/bisect code, they may not be aware of this code and accidentally break it (e.g. rename the branch file, or refer to the branch in new files). It's a lot more work. Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano --- builtin/branch.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'builtin') diff --git a/builtin/branch.c b/builtin/branch.c index bcde87d8e7..b488c3fb3c 100644 --- a/builtin/branch.c +++ b/builtin/branch.c @@ -524,6 +524,29 @@ static void print_ref_list(struct ref_filter *filter, struct ref_sorting *sortin ref_array_clear(&array); } +static void reject_rebase_or_bisect_branch(const char *target) +{ + struct worktree **worktrees = get_worktrees(); + int i; + + for (i = 0; worktrees[i]; i++) { + struct worktree *wt = worktrees[i]; + + if (!wt->is_detached) + continue; + + if (is_worktree_being_rebased(wt, target)) + die(_("Branch %s is being rebased at %s"), + target, wt->path); + + if (is_worktree_being_bisected(wt, target)) + die(_("Branch %s is being bisected at %s"), + target, wt->path); + } + + free_worktrees(worktrees); +} + static void rename_branch(const char *oldname, const char *newname, int force) { struct strbuf oldref = STRBUF_INIT, newref = STRBUF_INIT, logmsg = STRBUF_INIT; @@ -553,6 +576,8 @@ static void rename_branch(const char *oldname, const char *newname, int force) validate_new_branchname(newname, &newref, force, clobber_head_ok); + reject_rebase_or_bisect_branch(oldref.buf); + strbuf_addf(&logmsg, "Branch: renamed %s to %s", oldref.buf, newref.buf); -- cgit v1.2.3