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git/builtin-write-tree.c
Junio C Hamano 45525bd022 Make error messages from cherry-pick/revert more sensible
The original "rewrite in C" did somewhat a sloppy job while
stealing code from git-write-tree.

The caller pretends as if the write_tree() function would return
an error code and being able to issue a sensible error message
itself, but write_tree() function just calls die() and never
returns an error.  Worse yet, the function claims that it was
running git-write-tree (which is no longer true after
cherry-pick stole it).

Tested-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-05 00:39:19 -08:00

52 lines
1.2 KiB
C

/*
* GIT - The information manager from hell
*
* Copyright (C) Linus Torvalds, 2005
*/
#include "builtin.h"
#include "cache.h"
#include "tree.h"
#include "cache-tree.h"
static const char write_tree_usage[] =
"git-write-tree [--missing-ok] [--prefix=<prefix>/]";
int cmd_write_tree(int argc, const char **argv, const char *unused_prefix)
{
int missing_ok = 0, ret;
const char *prefix = NULL;
unsigned char sha1[20];
const char *me = "git-write-tree";
git_config(git_default_config);
while (1 < argc) {
const char *arg = argv[1];
if (!strcmp(arg, "--missing-ok"))
missing_ok = 1;
else if (!prefixcmp(arg, "--prefix="))
prefix = arg + 9;
else
usage(write_tree_usage);
argc--; argv++;
}
if (argc > 2)
die("too many options");
ret = write_cache_as_tree(sha1, missing_ok, prefix);
switch (ret) {
case 0:
printf("%s\n", sha1_to_hex(sha1));
break;
case WRITE_TREE_UNREADABLE_INDEX:
die("%s: error reading the index", me);
break;
case WRITE_TREE_UNMERGED_INDEX:
die("%s: error building trees; the index is unmerged?", me);
break;
case WRITE_TREE_PREFIX_ERROR:
die("%s: prefix %s not found", me, prefix);
break;
}
return ret;
}