errors.c 3.19 KB
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/*
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 * Copyright (C) 2009-2011 the libgit2 contributors
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 *
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 * This file is part of libgit2, distributed under the GNU GPL v2 with
 * a Linking Exception. For full terms see the included COPYING file.
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 */
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#include "common.h"
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#include "global.h"
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#include <stdarg.h>

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static struct {
	int num;
	const char *str;
} error_codes[] = {
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	{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"},
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	{GIT_EINVALIDTYPE, "The object or config variable type is invalid or doesn't match"},
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	{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"},
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	{GIT_EINVALIDPATH, "The path is invalid"},
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	{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"},
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	{GIT_EPACKEDREFSCORRUPTED, "The pack-refs file is either corrupted of its format is not currently supported"},
	{GIT_EINVALIDPATH, "The path is invalid" },
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	{GIT_EREVWALKOVER, "The revision walker is empty; there are no more commits left to iterate"},
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	{GIT_EINVALIDREFSTATE, "The state of the reference is not valid"},
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	{GIT_ENOTIMPLEMENTED, "This feature has not been implemented yet"},
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	{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"},
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	{GIT_EAMBIGUOUSOIDPREFIX, "The given oid prefix is ambiguous"},
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};

const char *git_strerror(int num)
{
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	size_t i;
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	if (num == GIT_EOSERR)
		return strerror(errno);
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	for (i = 0; i < ARRAY_SIZE(error_codes); i++)
		if (num == error_codes[i].num)
			return error_codes[i].str;

	return "Unknown error";
}
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#define ERROR_MAX_LEN 1024

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void git___rethrow(const char *msg, ...)
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{
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	char new_error[ERROR_MAX_LEN];
	char *last_error;
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	char *old_error = NULL;

	va_list va;

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	last_error = GIT_GLOBAL->error.last;

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	va_start(va, msg);
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	vsnprintf(new_error, ERROR_MAX_LEN, msg, va);
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	va_end(va);

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	old_error = git__strdup(last_error);

	snprintf(last_error, ERROR_MAX_LEN, "%s \n	- %s", new_error, old_error);

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	git__free(old_error);
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}

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void git___throw(const char *msg, ...)
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{
	va_list va;

	va_start(va, msg);
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	vsnprintf(GIT_GLOBAL->error.last, ERROR_MAX_LEN, msg, va);
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	va_end(va);
}
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const char *git_lasterror(void)
{
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	char *last_error = GIT_GLOBAL->error.last;

	if (!last_error[0])
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		return NULL;

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	return last_error;
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}

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void git_clearerror(void)
{
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	char *last_error = GIT_GLOBAL->error.last;
	last_error[0] = '\0';
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}