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8d9fdd7087
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 <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
70 lines
2.5 KiB
C
70 lines
2.5 KiB
C
#ifndef BRANCH_H
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#define BRANCH_H
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/* Functions for acting on the information about branches. */
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/*
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* Creates a new branch, where head is the branch currently checked
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* out, name is the new branch name, start_name is the name of the
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* existing branch that the new branch should start from, force
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* enables overwriting an existing (non-head) branch, reflog creates a
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* reflog for the branch, and track causes the new branch to be
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* configured to merge the remote branch that start_name is a tracking
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* branch for (if any).
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*/
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void create_branch(const char *head, const char *name, const char *start_name,
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int force, int reflog,
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int clobber_head, int quiet, enum branch_track track);
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/*
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* Validates that the requested branch may be created, returning the
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* interpreted ref in ref, force indicates whether (non-head) branches
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* may be overwritten. A non-zero return value indicates that the force
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* parameter was non-zero and the branch already exists.
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*
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* Contrary to all of the above, when attr_only is 1, the caller is
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* not interested in verifying if it is Ok to update the named
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* branch to point at a potentially different commit. It is merely
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* asking if it is OK to change some attribute for the named branch
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* (e.g. tracking upstream).
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*
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* NEEDSWORK: This needs to be split into two separate functions in the
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* longer run for sanity.
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*
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*/
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int validate_new_branchname(const char *name, struct strbuf *ref, int force, int attr_only);
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/*
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* Remove information about the state of working on the current
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* branch. (E.g., MERGE_HEAD)
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*/
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void remove_branch_state(void);
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/*
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* Configure local branch "local" as downstream to branch "remote"
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* from remote "origin". Used by git branch --set-upstream.
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* Returns 0 on success.
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*/
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#define BRANCH_CONFIG_VERBOSE 01
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extern int install_branch_config(int flag, const char *local, const char *origin, const char *remote);
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/*
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* Read branch description
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*/
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extern int read_branch_desc(struct strbuf *, const char *branch_name);
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/*
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* Check if a branch is checked out in the main worktree or any linked
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* worktree and die (with a message describing its checkout location) if
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* it is.
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*/
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extern void die_if_checked_out(const char *branch, int ignore_current_worktree);
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/*
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* Update all per-worktree HEADs pointing at the old ref to point the new ref.
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* This will be used when renaming a branch. Returns 0 if successful, non-zero
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* otherwise.
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*/
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extern int replace_each_worktree_head_symref(const char *oldref, const char *newref);
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#endif
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