thodg/libgit2/src/remote.c

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• Hash : 2dc31040
  Author :
  Date : 2011-06-20T18:58:57
  

  Abstract the refspec query and parse Move them to their own functions to avoid duplication and to make it easier to ignore missing configuration. Not finding 'fetch' is considered fatal, though this might not be correct behaviour (push-only remotes?) Signed-off-by: Carlos Martín Nieto <carlos@cmartin.tk>

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• src/remote.c

• /*
   * This file is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License, version 2,
   * as published by the Free Software Foundation.
   *
   * In addition to the permissions in the GNU General Public License,
   * the authors give you unlimited permission to link the compiled
   * version of this file into combinations with other programs,
   * and to distribute those combinations without any restriction
   * coming from the use of this file.  (The General Public License
   * restrictions do apply in other respects; for example, they cover
   * modification of the file, and distribution when not linked into
   * a combined executable.)
   *
   * This file is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; see the file COPYING.  If not, write to
   * the Free Software Foundation, 51 Franklin Street, Fifth Floor,
   * Boston, MA 02110-1301, USA.
   */
  
  #include "git2/remote.h"
  #include "git2/config.h"
  #include "git2/types.h"
  
  #include "config.h"
  #include "repository.h"
  #include "remote.h"
  
  static int refspec_parse(git_refspec *refspec, const char *str)
  {
  	char *delim;
  
  	memset(refspec, 0x0, sizeof(git_refspec));
  
  	if (*str == '+') {
  		refspec->force = 1;
  		str++;
  	}
  
  	delim = strchr(str, ':');
  	if (delim == NULL)
  		return git__throw(GIT_EOBJCORRUPTED, "Failed to parse refspec. No ':'");
  
  	refspec->src = git__strndup(str, delim - str);
  	if (refspec->src == NULL)
  		return GIT_ENOMEM;
  
  	refspec->dst = git__strdup(delim + 1);
  	if (refspec->dst == NULL) {
  		free(refspec->src);
  		refspec->src = NULL;
  		return GIT_ENOMEM;
  	}
  
  	return GIT_SUCCESS;
  }
  
  static int parse_remote_refspec(git_config *cfg, git_refspec *refspec, const char *var)
  {
  	const char *val;
  	int error;
  
  	error = git_config_get_string(cfg, var, &val);
  	if (error < GIT_SUCCESS)
  		return error;
  
  	return refspec_parse(refspec, val);
  }
  
  int git_remote_get(git_remote **out, git_config *cfg, const char *name)
  {
  	git_remote *remote;
  	char *buf = NULL;
  	const char *val;
  	int ret, error, buf_len;
  
  	remote = git__malloc(sizeof(git_remote));
  	if (remote == NULL)
  		return GIT_ENOMEM;
  
  	memset(remote, 0x0, sizeof(git_remote));
  	remote->name = git__strdup(name);
  	if (remote->name == NULL) {
  		error = GIT_ENOMEM;
  		goto cleanup;
  	}
  
  	/* "fetch" is the longest var name we're interested in */
  	buf_len = STRLEN("remote.") + STRLEN(".fetch") + strlen(name) + 1;
  	buf = git__malloc(buf_len);
  	if (buf == NULL) {
  		error = GIT_ENOMEM;
  		goto cleanup;
  	}
  
  	ret = snprintf(buf, buf_len, "%s.%s.%s", "remote", name, "url");
  	if (ret < 0) {
  		error = git__throw(GIT_EOSERR, "Failed to build config var name");
  		goto cleanup;
  	}
  
  	error = git_config_get_string(cfg, buf, &val);
  	if (error < GIT_SUCCESS) {
  		error = git__rethrow(error,  "Remote's url doesn't exist");
  		goto cleanup;
  	}
  
  	remote->url = git__strdup(val);
  	if (remote->url == NULL) {
  		error = GIT_ENOMEM;
  		goto cleanup;
  	}
  
  	ret = snprintf(buf, buf_len, "%s.%s.%s", "remote", name, "fetch");
  	if (ret < 0) {
  		error = git__throw(GIT_EOSERR, "Failed to build config var name");
  		goto cleanup;
  	}
  
  	error = parse_remote_refspec(cfg, &remote->fetch, buf);
  	if (error < GIT_SUCCESS) {
  		error = git__rethrow(error, "Failed to get fetch refspec");
  		goto cleanup;
  	}
  
  	ret = snprintf(buf, buf_len, "%s.%s.%s", "remote", name, "push");
  	if (ret < 0) {
  		error = git__throw(GIT_EOSERR, "Failed to build config var name");
  		goto cleanup;
  	}
  
  	error = parse_remote_refspec(cfg, &remote->push, buf);
  	/* Not finding push is fine */
  	if (error == GIT_ENOTFOUND)
  		error = GIT_SUCCESS;
  
  	if (error < GIT_SUCCESS)
  		goto cleanup;
  
  	*out = remote;
  
  cleanup:
  	free(buf);
  	if (error < GIT_SUCCESS)
  		git_remote_free(remote);
  
  	return error;
  }
  
  const char *git_remote_name(struct git_remote *remote)
  {
  	return remote->name;
  }
  
  const char *git_remote_url(struct git_remote *remote)
  {
  	return remote->url;
  }
  
  const git_refspec *git_remote_fetchspec(struct git_remote *remote)
  {
  	return &remote->fetch;
  }
  
  const git_refspec *git_remote_pushspec(struct git_remote *remote)
  {
  	return &remote->push;
  }
  
  void git_remote_free(git_remote *remote)
  {
  	free(remote->fetch.src);
  	free(remote->fetch.dst);
  	free(remote->push.src);
  	free(remote->push.dst);
  	free(remote->url);
  	free(remote->name);
  	free(remote);
  }
  

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