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git/builtin-write-tree.c
Junio C Hamano 331fcb598e git add --intent-to-add: do not let an empty blob be committed by accident
Writing a tree out of an index with an "intent to add" entry is blocked.
This implies that you cannot "git commit" from such a state; however you
can still do "git commit -a" or "git commit $that_path".

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-11-30 17:59:19 -08:00

53 lines
1.1 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, NULL);
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", me);
break;
case WRITE_TREE_PREFIX_ERROR:
die("%s: prefix %s not found", me, prefix);
break;
}
return ret;
}