thodg/libgit2/src/fetchhead.c

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• Hash : b0f6e45d
  Author :
  Date : 2012-11-01T15:47:18
  

  create FETCH_HEAD specially instead of as a ref file

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• src/fetchhead.c

• /*
   * 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.
   */
  
  #include "git2/types.h"
  #include "git2/oid.h"
  
  #include "fetchhead.h"
  #include "common.h"
  #include "fileops.h"
  #include "filebuf.h"
  #include "refs.h"
  #include "repository.h"
  
  
  int git_fetchhead_ref_cmp(const void *a, const void *b)
  {
  	const git_fetchhead_ref *one = (const git_fetchhead_ref *)a;
  	const git_fetchhead_ref *two = (const git_fetchhead_ref *)b;
  
  	if (one->is_merge && !two->is_merge)
  		return -1;
  	if (two->is_merge && !one->is_merge)
  		return 1;
  
  	return strcmp(one->ref_name, two->ref_name);
  }
  
  int git_fetchhead_ref_create(
  	git_fetchhead_ref **fetchhead_ref_out,
  	git_oid *oid,
  	int is_merge,
  	const char *ref_name,
  	const char *remote_url)
  {
  	git_fetchhead_ref *fetchhead_ref = NULL;
  
  	assert(fetchhead_ref_out && oid && ref_name && remote_url);
  
  	fetchhead_ref = git__malloc(sizeof(git_fetchhead_ref));
  	GITERR_CHECK_ALLOC(fetchhead_ref);
  
  	memset(fetchhead_ref, 0x0, sizeof(git_fetchhead_ref));
  
  	git_oid_cpy(&fetchhead_ref->oid, oid);
  	fetchhead_ref->is_merge = is_merge;
  	fetchhead_ref->ref_name = git__strdup(ref_name);
  	fetchhead_ref->remote_url = git__strdup(remote_url);
  
  	*fetchhead_ref_out = fetchhead_ref;
  
  	return 0;
  }
  
  static int fetchhead_ref_write(
  	git_filebuf *file,
  	git_fetchhead_ref *fetchhead_ref)
  {
  	char oid[GIT_OID_HEXSZ + 1];
  	const char *type, *name;
  
  	assert(file && fetchhead_ref);
  
  	git_oid_fmt(oid, &fetchhead_ref->oid);
  	oid[GIT_OID_HEXSZ] = '\0';
  
  	if (git__prefixcmp(fetchhead_ref->ref_name, GIT_REFS_HEADS_DIR) == 0) {
  		type = "branch ";
  		name = fetchhead_ref->ref_name + strlen(GIT_REFS_HEADS_DIR);
  	} else if(git__prefixcmp(fetchhead_ref->ref_name,
  		GIT_REFS_TAGS_DIR) == 0) {
  		type = "tag ";
  		name = fetchhead_ref->ref_name + strlen(GIT_REFS_TAGS_DIR);
  	} else {
  		type = "";
  		name = fetchhead_ref->ref_name;
  	}
  
  	return git_filebuf_printf(file, "%s\t%s\t%s'%s' of %s\n",
  		oid,
  		(fetchhead_ref->is_merge) ? "" : "not-for-merge",
  		type,
  		name,
  		fetchhead_ref->remote_url);
  }
  
  int git_fetchhead_write(git_repository *repo, git_vector *fetchhead_refs)
  {
  	git_filebuf file = GIT_FILEBUF_INIT;
  	git_buf path = GIT_BUF_INIT;
  	unsigned int i;
  	git_fetchhead_ref *fetchhead_ref;
  
  	assert(repo && fetchhead_refs);
  
  	if (git_buf_joinpath(&path, repo->path_repository, GIT_FETCH_HEAD_FILE) < 0)
  		return -1;
  
  	if (git_filebuf_open(&file, path.ptr, GIT_FILEBUF_FORCE) < 0) {
  		git_buf_free(&path);
  		return -1;
  	}
  
  	git_buf_free(&path);
  
  	git_vector_sort(fetchhead_refs);
  
  	git_vector_foreach(fetchhead_refs, i, fetchhead_ref)
  		fetchhead_ref_write(&file, fetchhead_ref);
  
  	return git_filebuf_commit(&file, GIT_REFS_FILE_MODE);
  }
  
  void git_fetchhead_ref_free(git_fetchhead_ref *fetchhead_ref)
  {
  	if (fetchhead_ref == NULL)
  		return;
  
  	git__free(fetchhead_ref->remote_url);
  	git__free(fetchhead_ref->ref_name);
  	git__free(fetchhead_ref);
  }
  
  

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