git/branch.h
Kazuki Yamaguchi 70999e9cec branch -m: update all per-worktree HEADs
When renaming a branch, currently only the HEAD of current working tree
is updated, but it must update HEADs of all working trees which point at
the old branch.

This is the current behavior, /path/to/wt's HEAD is not updated:

  % git worktree list
  /path/to     2c3c5f2 [master]
  /path/to/wt  2c3c5f2 [oldname]
  % git branch -m master master2
  % git worktree list
  /path/to     2c3c5f2 [master2]
  /path/to/wt  2c3c5f2 [oldname]
  % git branch -m oldname newname
  % git worktree list
  /path/to     2c3c5f2 [master2]
  /path/to/wt  0000000 [oldname]

This patch fixes this issue by updating all relevant worktree HEADs
when renaming a branch.

Signed-off-by: Kazuki Yamaguchi <k@rhe.jp>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-04-04 12:57:22 -07:00

71 lines
2.4 KiB
C

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