thodg/libgit2/src/refs.h

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• Hash : c4a9ded0
  Author :
  Date : 2012-10-30T12:03:22
  

  Merge pull request #1026 from nulltoken/repo/state repo: enhance git_repository_state() detection

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• src/refs.h

• /*
   * Copyright (C) 2009-2012 the libgit2 contributors
   *
   * This file is part of libgit2, distributed under the GNU GPL v2 with
   * a Linking Exception. For full terms see the included COPYING file.
   */
  #ifndef INCLUDE_refs_h__
  #define INCLUDE_refs_h__
  
  #include "common.h"
  #include "git2/oid.h"
  #include "git2/refs.h"
  #include "strmap.h"
  #include "buffer.h"
  
  #define GIT_REFS_DIR "refs/"
  #define GIT_REFS_HEADS_DIR GIT_REFS_DIR "heads/"
  #define GIT_REFS_TAGS_DIR GIT_REFS_DIR "tags/"
  #define GIT_REFS_REMOTES_DIR GIT_REFS_DIR "remotes/"
  #define GIT_REFS_DIR_MODE 0777
  #define GIT_REFS_FILE_MODE 0666
  
  #define GIT_RENAMED_REF_FILE GIT_REFS_DIR "RENAMED-REF"
  
  #define GIT_SYMREF "ref: "
  #define GIT_PACKEDREFS_FILE "packed-refs"
  #define GIT_PACKEDREFS_HEADER "# pack-refs with: peeled "
  #define GIT_PACKEDREFS_FILE_MODE 0666
  
  #define GIT_HEAD_FILE "HEAD"
  #define GIT_ORIG_HEAD_FILE "ORIG_HEAD"
  #define GIT_FETCH_HEAD_FILE "FETCH_HEAD"
  #define GIT_MERGE_HEAD_FILE "MERGE_HEAD"
  #define GIT_REVERT_HEAD_FILE "REVERT_HEAD"
  #define GIT_CHERRY_PICK_HEAD_FILE "CHERRY_PICK_HEAD"
  #define GIT_BISECT_LOG_FILE "BISECT_LOG"
  #define GIT_REBASE_MERGE_DIR "rebase-merge/"
  #define GIT_REBASE_MERGE_INTERACTIVE_FILE GIT_REBASE_MERGE_DIR "interactive"
  #define GIT_REBASE_APPLY_DIR "rebase-apply/"
  #define GIT_REBASE_APPLY_REBASING_FILE GIT_REBASE_APPLY_DIR "rebasing"
  #define GIT_REBASE_APPLY_APPLYING_FILE GIT_REBASE_APPLY_DIR "applying"
  #define GIT_REFS_HEADS_MASTER_FILE GIT_REFS_HEADS_DIR "master"
  
  #define GIT_STASH_FILE "stash"
  #define GIT_REFS_STASH_FILE GIT_REFS_DIR GIT_STASH_FILE
  
  #define GIT_REFNAME_MAX 1024
  
  struct git_reference {
  	unsigned int flags;
  	git_repository *owner;
  	char *name;
  	time_t mtime;
  
  	union {
  		git_oid oid;
  		char *symbolic;
  	} target;
  };
  
  typedef struct {
  	git_strmap *packfile;
  	time_t packfile_time;
  } git_refcache;
  
  void git_repository__refcache_free(git_refcache *refs);
  
  int git_reference__normalize_name_lax(char *buffer_out, size_t out_size, const char *name);
  int git_reference__normalize_name(git_buf *buf, const char *name, unsigned int flags);
  int git_reference__is_valid_name(const char *refname, unsigned int flags);
  int git_reference__update(git_repository *repo, const git_oid *oid, const char *ref_name);
  
  /**
   * Lookup a reference by name and try to resolve to an OID.
   *
   * You can control how many dereferences this will attempt to resolve the
   * reference with the `max_deref` parameter, or pass -1 to use a sane
   * default.  If you pass 0 for `max_deref`, this will not attempt to resolve
   * the reference.  For any value of `max_deref` other than 0, not
   * successfully resolving the reference will be reported as an error.
  
   * The generated reference must be freed by the user.
   *
   * @param reference_out Pointer to the looked-up reference
   * @param repo The repository to look up the reference
   * @param name The long name for the reference (e.g. HEAD, ref/heads/master, refs/tags/v0.1.0, ...)
   * @param max_deref Maximum number of dereferences to make of symbolic refs, 0 means simple lookup, < 0 means use default reasonable value
   * @return 0 on success or < 0 on error; not being able to resolve the reference is an error unless 0 was passed for max_deref
   */
  int git_reference_lookup_resolved(
  	git_reference **reference_out,
  	git_repository *repo,
  	const char *name,
  	int max_deref);
  
  #endif
  

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