thodg/libgit2/src/errors.c

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• Hash : 53c0bd81
  Author :
  Date : 2011-05-27T22:37:10
  

  Added error for ambiguous oid prefixes. Added methods to compare the first nth hexadecimal characters (i.e. packets of 4 bits) of OIDs.

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• src/errors.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 "common.h"
  #include "git2/thread-utils.h" /* for GIT_TLS */
  #include "thread-utils.h" /* for GIT_TLS */
  
  #include <stdarg.h>
  
  static GIT_TLS char g_last_error[1024];
  
  static struct {
  	int num;
  	const char *str;
  } error_codes[] = {
  	{GIT_ERROR, "Unspecified error"},
  	{GIT_ENOTOID, "Input was not a properly formatted Git object id."},
  	{GIT_ENOTFOUND, "Object does not exist in the scope searched."},
  	{GIT_ENOMEM, "Not enough space available."},
  	{GIT_EOSERR, "Consult the OS error information."},
  	{GIT_EOBJTYPE, "The specified object is of invalid type"},
  	{GIT_EOBJCORRUPTED, "The specified object has its data corrupted"},
  	{GIT_ENOTAREPO, "The specified repository is invalid"},
  	{GIT_EINVALIDTYPE, "The object or config variable type is invalid or doesn't match"},
  	{GIT_EMISSINGOBJDATA, "The object cannot be written that because it's missing internal data"},
  	{GIT_EPACKCORRUPTED, "The packfile for the ODB is corrupted"},
  	{GIT_EFLOCKFAIL, "Failed to adquire or release a file lock"},
  	{GIT_EZLIB, "The Z library failed to inflate/deflate an object's data"},
  	{GIT_EBUSY, "The queried object is currently busy"},
  	{GIT_EINVALIDPATH, "The path is invalid"},
  	{GIT_EBAREINDEX, "The index file is not backed up by an existing repository"},
  	{GIT_EINVALIDREFNAME, "The name of the reference is not valid"},
  	{GIT_EREFCORRUPTED, "The specified reference has its data corrupted"},
  	{GIT_ETOONESTEDSYMREF, "The specified symbolic reference is too deeply nested"},
  	{GIT_EPACKEDREFSCORRUPTED, "The pack-refs file is either corrupted of its format is not currently supported"},
  	{GIT_EINVALIDPATH, "The path is invalid" },
  	{GIT_EREVWALKOVER, "The revision walker is empty; there are no more commits left to iterate"},
  	{GIT_EINVALIDREFSTATE, "The state of the reference is not valid"},
  	{GIT_ENOTIMPLEMENTED, "This feature has not been implemented yet"},
  	{GIT_EEXISTS, "A reference with this name already exists"},
  	{GIT_EOVERFLOW, "The given integer literal is too large to be parsed"},
  	{GIT_ENOTNUM, "The given literal is not a valid number"},
  	{GIT_EAMBIGUOUSOIDPREFIX, "The given oid prefix is ambiguous"},
  };
  
  const char *git_strerror(int num)
  {
  	size_t i;
  
  	if (num == GIT_EOSERR)
  		return strerror(errno);
  	for (i = 0; i < ARRAY_SIZE(error_codes); i++)
  		if (num == error_codes[i].num)
  			return error_codes[i].str;
  
  	return "Unknown error";
  }
  
  int git__rethrow(int error, const char *msg, ...)
  {
  	char new_error[1024];
  	char *old_error = NULL;
  
  	va_list va;
  
  	va_start(va, msg);
  	vsnprintf(new_error, sizeof(new_error), msg, va);
  	va_end(va);
  
  	old_error = strdup(g_last_error);
  	snprintf(g_last_error, sizeof(g_last_error), "%s \n    - %s", new_error, old_error);
  	free(old_error);
  
  	return error;
  }
  
  int git__throw(int error, const char *msg, ...)
  {
  	va_list va;
  
  	va_start(va, msg);
  	vsnprintf(g_last_error, sizeof(g_last_error), msg, va);
  	va_end(va);
  
  	return error;
  }
  
  const char *git_lasterror(void)
  {
  	return g_last_error;
  }
  
  

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