branch.hon commit Merge branch 'bc/hash-algo' (0fd90da)
   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 *   - clobber_head_ok allows the currently checked out (hence existing)
  17 *     branch to be overwritten; without 'force', it has no effect.
  18 *
  19 *   - reflog creates a reflog for the branch
  20 *
  21 *   - quiet suppresses tracking information
  22 *
  23 *   - track causes the new branch to be configured to merge the remote branch
  24 *     that start_name is a tracking branch for (if any).
  25 *
  26 */
  27void create_branch(const char *name, const char *start_name,
  28                   int force, int clobber_head_ok,
  29                   int reflog, int quiet, enum branch_track track);
  30
  31/*
  32 * Check if 'name' can be a valid name for a branch; die otherwise.
  33 * Return 1 if the named branch already exists; return 0 otherwise.
  34 * Fill ref with the full refname for the branch.
  35 */
  36extern int validate_branchname(const char *name, struct strbuf *ref);
  37
  38/*
  39 * Check if a branch 'name' can be created as a new branch; die otherwise.
  40 * 'force' can be used when it is OK for the named branch already exists.
  41 * Return 1 if the named branch already exists; return 0 otherwise.
  42 * Fill ref with the full refname for the branch.
  43 */
  44extern int validate_new_branchname(const char *name, struct strbuf *ref, int force);
  45
  46/*
  47 * Remove information about the state of working on the current
  48 * branch. (E.g., MERGE_HEAD)
  49 */
  50void remove_branch_state(void);
  51
  52/*
  53 * Configure local branch "local" as downstream to branch "remote"
  54 * from remote "origin".  Used by git branch --set-upstream.
  55 * Returns 0 on success.
  56 */
  57#define BRANCH_CONFIG_VERBOSE 01
  58extern int install_branch_config(int flag, const char *local, const char *origin, const char *remote);
  59
  60/*
  61 * Read branch description
  62 */
  63extern int read_branch_desc(struct strbuf *, const char *branch_name);
  64
  65/*
  66 * Check if a branch is checked out in the main worktree or any linked
  67 * worktree and die (with a message describing its checkout location) if
  68 * it is.
  69 */
  70extern void die_if_checked_out(const char *branch, int ignore_current_worktree);
  71
  72/*
  73 * Update all per-worktree HEADs pointing at the old ref to point the new ref.
  74 * This will be used when renaming a branch. Returns 0 if successful, non-zero
  75 * otherwise.
  76 */
  77extern int replace_each_worktree_head_symref(const char *oldref, const char *newref,
  78                                             const char *logmsg);
  79
  80#endif