branch.h

   1 #ifndef BRANCH_H
   2 #define BRANCH_H
   3
   4 /* Functions for acting on the information about branches. */
   5
   6 /*
   7  * Creates a new branch, where:
   8  *
   9  *   - name is the new branch name
  10  *
  11  *   - start_name is the name of the existing branch that the new branch should
  12  *     start from
  13  *
  14  *   - force enables overwriting an existing (non-head) branch
  15  *
  16  *   - reflog creates a reflog for the branch
  17  *
  18  *   - track causes the new branch to be configured to merge the remote branch
  19  *     that start_name is a tracking branch for (if any).
  20  */
  21 void create_branch(const char *name, const char *start_name,
  22                    int force, int reflog,
  23                    int clobber_head, int quiet, enum branch_track track);
  24
  25 /*
  26  * Validates that the requested branch may be created, returning the
  27  * interpreted ref in ref, force indicates whether (non-head) branches
  28  * may be overwritten. A non-zero return value indicates that the force
  29  * parameter was non-zero and the branch already exists.
  30  *
  31  * Contrary to all of the above, when attr_only is 1, the caller is
  32  * not interested in verifying if it is Ok to update the named
  33  * branch to point at a potentially different commit. It is merely
  34  * asking if it is OK to change some attribute for the named branch
  35  * (e.g. tracking upstream).
  36  *
  37  * NEEDSWORK: This needs to be split into two separate functions in the
  38  * longer run for sanity.
  39  *
  40  */
  41 int validate_new_branchname(const char *name, struct strbuf *ref, int force, int attr_only);
  42
  43 /*
  44  * Remove information about the state of working on the current
  45  * branch. (E.g., MERGE_HEAD)
  46  */
  47 void remove_branch_state(void);
  48
  49 /*
  50  * Configure local branch "local" as downstream to branch "remote"
  51  * from remote "origin".  Used by git branch --set-upstream.
  52  * Returns 0 on success.
  53  */
  54 #define BRANCH_CONFIG_VERBOSE 01
  55 extern int install_branch_config(int flag, const char *local, const char *origin, const char *remote);
  56
  57 /*
  58  * Read branch description
  59  */
  60 extern int read_branch_desc(struct strbuf *, const char *branch_name);
  61
  62 /*
  63  * Check if a branch is checked out in the main worktree or any linked
  64  * worktree and die (with a message describing its checkout location) if
  65  * it is.
  66  */
  67 extern void die_if_checked_out(const char *branch, int ignore_current_worktree);
  68
  69 /*
  70  * Update all per-worktree HEADs pointing at the old ref to point the new ref.
  71  * This will be used when renaming a branch. Returns 0 if successful, non-zero
  72  * otherwise.
  73  */
  74 extern int replace_each_worktree_head_symref(const char *oldref, const char *newref,
  75                                              const char *logmsg);
  76
  77 #endif