Revision 045a476f91a9a308c823a2709977163238baa3fd authored by Miklos Vajna on 31 October 2008, 23:25:44 UTC, committed by Junio C Hamano on 01 November 2008, 05:41:55 UTC
In this case we did nothing in the past, but we should delete the reference in fact. The problem was that when the symref is not packed but the referenced ref is packed, then we assumed that the symref is packed as well, but symrefs are never packed. Signed-off-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
1 parent fa58186
builtin-mv.c
/*
* "git mv" builtin command
*
* Copyright (C) 2006 Johannes Schindelin
*/
#include "cache.h"
#include "builtin.h"
#include "dir.h"
#include "cache-tree.h"
#include "string-list.h"
#include "parse-options.h"
static const char * const builtin_mv_usage[] = {
"git mv [options] <source>... <destination>",
NULL
};
static const char **copy_pathspec(const char *prefix, const char **pathspec,
int count, int base_name)
{
int i;
const char **result = xmalloc((count + 1) * sizeof(const char *));
memcpy(result, pathspec, count * sizeof(const char *));
result[count] = NULL;
for (i = 0; i < count; i++) {
int length = strlen(result[i]);
if (length > 0 && result[i][length - 1] == '/') {
result[i] = xmemdupz(result[i], length - 1);
}
if (base_name) {
const char *last_slash = strrchr(result[i], '/');
if (last_slash)
result[i] = last_slash + 1;
}
}
return get_pathspec(prefix, result);
}
static const char *add_slash(const char *path)
{
int len = strlen(path);
if (path[len - 1] != '/') {
char *with_slash = xmalloc(len + 2);
memcpy(with_slash, path, len);
with_slash[len++] = '/';
with_slash[len] = 0;
return with_slash;
}
return path;
}
static struct lock_file lock_file;
int cmd_mv(int argc, const char **argv, const char *prefix)
{
int i, newfd;
int verbose = 0, show_only = 0, force = 0, ignore_errors = 0;
struct option builtin_mv_options[] = {
OPT__DRY_RUN(&show_only),
OPT_BOOLEAN('f', NULL, &force, "force move/rename even if target exists"),
OPT_BOOLEAN('k', NULL, &ignore_errors, "skip move/rename errors"),
OPT_END(),
};
const char **source, **destination, **dest_path;
enum update_mode { BOTH = 0, WORKING_DIRECTORY, INDEX } *modes;
struct stat st;
struct string_list src_for_dst = {NULL, 0, 0, 0};
git_config(git_default_config, NULL);
newfd = hold_locked_index(&lock_file, 1);
if (read_cache() < 0)
die("index file corrupt");
argc = parse_options(argc, argv, builtin_mv_options, builtin_mv_usage, 0);
if (--argc < 1)
usage_with_options(builtin_mv_usage, builtin_mv_options);
source = copy_pathspec(prefix, argv, argc, 0);
modes = xcalloc(argc, sizeof(enum update_mode));
dest_path = copy_pathspec(prefix, argv + argc, 1, 0);
if (dest_path[0][0] == '\0')
/* special case: "." was normalized to "" */
destination = copy_pathspec(dest_path[0], argv, argc, 1);
else if (!lstat(dest_path[0], &st) &&
S_ISDIR(st.st_mode)) {
dest_path[0] = add_slash(dest_path[0]);
destination = copy_pathspec(dest_path[0], argv, argc, 1);
} else {
if (argc != 1)
usage_with_options(builtin_mv_usage, builtin_mv_options);
destination = dest_path;
}
/* Checking */
for (i = 0; i < argc; i++) {
const char *src = source[i], *dst = destination[i];
int length, src_is_dir;
const char *bad = NULL;
if (show_only)
printf("Checking rename of '%s' to '%s'\n", src, dst);
length = strlen(src);
if (lstat(src, &st) < 0)
bad = "bad source";
else if (!strncmp(src, dst, length) &&
(dst[length] == 0 || dst[length] == '/')) {
bad = "can not move directory into itself";
} else if ((src_is_dir = S_ISDIR(st.st_mode))
&& lstat(dst, &st) == 0)
bad = "cannot move directory over file";
else if (src_is_dir) {
const char *src_w_slash = add_slash(src);
int len_w_slash = length + 1;
int first, last;
modes[i] = WORKING_DIRECTORY;
first = cache_name_pos(src_w_slash, len_w_slash);
if (first >= 0)
die ("Huh? %.*s is in index?",
len_w_slash, src_w_slash);
first = -1 - first;
for (last = first; last < active_nr; last++) {
const char *path = active_cache[last]->name;
if (strncmp(path, src_w_slash, len_w_slash))
break;
}
free((char *)src_w_slash);
if (last - first < 1)
bad = "source directory is empty";
else {
int j, dst_len;
if (last - first > 0) {
source = xrealloc(source,
(argc + last - first)
* sizeof(char *));
destination = xrealloc(destination,
(argc + last - first)
* sizeof(char *));
modes = xrealloc(modes,
(argc + last - first)
* sizeof(enum update_mode));
}
dst = add_slash(dst);
dst_len = strlen(dst);
for (j = 0; j < last - first; j++) {
const char *path =
active_cache[first + j]->name;
source[argc + j] = path;
destination[argc + j] =
prefix_path(dst, dst_len,
path + length + 1);
modes[argc + j] = INDEX;
}
argc += last - first;
}
} else if (lstat(dst, &st) == 0) {
bad = "destination exists";
if (force) {
/*
* only files can overwrite each other:
* check both source and destination
*/
if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) {
fprintf(stderr, "Warning: %s;"
" will overwrite!\n",
bad);
bad = NULL;
} else
bad = "Cannot overwrite";
}
} else if (cache_name_pos(src, length) < 0)
bad = "not under version control";
else if (string_list_has_string(&src_for_dst, dst))
bad = "multiple sources for the same target";
else
string_list_insert(dst, &src_for_dst);
if (bad) {
if (ignore_errors) {
if (--argc > 0) {
memmove(source + i, source + i + 1,
(argc - i) * sizeof(char *));
memmove(destination + i,
destination + i + 1,
(argc - i) * sizeof(char *));
}
} else
die ("%s, source=%s, destination=%s",
bad, src, dst);
}
}
for (i = 0; i < argc; i++) {
const char *src = source[i], *dst = destination[i];
enum update_mode mode = modes[i];
int pos;
if (show_only || verbose)
printf("Renaming %s to %s\n", src, dst);
if (!show_only && mode != INDEX &&
rename(src, dst) < 0 && !ignore_errors)
die ("renaming %s failed: %s", src, strerror(errno));
if (mode == WORKING_DIRECTORY)
continue;
pos = cache_name_pos(src, strlen(src));
assert(pos >= 0);
if (!show_only)
rename_cache_entry_at(pos, dst);
}
if (active_cache_changed) {
if (write_cache(newfd, active_cache, active_nr) ||
commit_locked_index(&lock_file))
die("Unable to write new index file");
}
return 0;
}
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