*
* Careful: order of argument flags does matter. For example,
*
- * checkout-cache -a -f file.c
+ * git-checkout-cache -a -f file.c
*
* Will first check out all files listed in the cache (but not
* overwrite any old ones), and then force-checkout "file.c" a
* second time (ie that one _will_ overwrite any old contents
* with the same filename).
*
- * Also, just doing "checkout-cache" does nothing. You probably
- * meant "checkout-cache -a". And if you want to force it, you
- * want "checkout-cache -f -a".
+ * Also, just doing "git-checkout-cache" does nothing. You probably
+ * meant "git-checkout-cache -a". And if you want to force it, you
+ * want "git-checkout-cache -f -a".
*
* Intuitiveness is not the goal here. Repeatability is. The
* reason for the "no arguments means no work" thing is that
* from scripts you are supposed to be able to do things like
*
- * find . -name '*.h' -print0 | xargs -0 checkout-cache -f --
+ * find . -name '*.h' -print0 | xargs -0 git-checkout-cache -f --
*
* which will force all existing *.h files to be replaced with
* their cached copies. If an empty command line implied "all",
* of "-a" causing problems (not possible in the above example,
* but get used to it in scripting!).
*/
+#include <sys/types.h>
+#include <dirent.h>
#include "cache.h"
-static int force = 0, quiet = 0, not_new = 0;
+static int force = 0, quiet = 0, not_new = 0, refresh_cache = 0;
static void create_directories(const char *path)
{
len = slash - path;
memcpy(buf, path, len);
buf[len] = 0;
- mkdir(buf, 0755);
+ if (mkdir(buf, 0755)) {
+ if (errno == EEXIST) {
+ struct stat st;
+ if (!lstat(buf, &st) && S_ISDIR(st.st_mode))
+ continue; /* ok */
+ if (force && !unlink(buf) && !mkdir(buf, 0755))
+ continue;
+ }
+ die("cannot create directory at %s", buf);
+ }
+ }
+ free(buf);
+}
+
+static void remove_subtree(const char *path)
+{
+ DIR *dir = opendir(path);
+ struct dirent *de;
+ char pathbuf[PATH_MAX];
+ char *name;
+
+ if (!dir)
+ die("cannot opendir %s", path);
+ strcpy(pathbuf, path);
+ name = pathbuf + strlen(path);
+ *name++ = '/';
+ while ((de = readdir(dir)) != NULL) {
+ struct stat st;
+ if ((de->d_name[0] == '.') &&
+ ((de->d_name[1] == 0) ||
+ ((de->d_name[1] == '.') && de->d_name[2] == 0)))
+ continue;
+ strcpy(name, de->d_name);
+ if (lstat(pathbuf, &st))
+ die("cannot lstat %s", pathbuf);
+ if (S_ISDIR(st.st_mode))
+ remove_subtree(pathbuf);
+ else if (unlink(pathbuf))
+ die("cannot unlink %s", pathbuf);
}
+ closedir(dir);
+ if (rmdir(path))
+ die("cannot rmdir %s", path);
}
static int create_file(const char *path, unsigned int mode)
int fd;
mode = (mode & 0100) ? 0777 : 0666;
+ create_directories(path);
fd = open(path, O_WRONLY | O_TRUNC | O_CREAT, mode);
if (fd < 0) {
- if (errno == ENOENT) {
- create_directories(path);
+ if (errno == EISDIR && force) {
+ remove_subtree(path);
fd = open(path, O_WRONLY | O_TRUNC | O_CREAT, mode);
}
}
new = read_sha1_file(ce->sha1, type, &size);
if (!new || strcmp(type, "blob")) {
- return error("checkout-cache: unable to read sha1 file of %s (%s)",
+ if (new)
+ free(new);
+ return error("git-checkout-cache: unable to read sha1 file of %s (%s)",
path, sha1_to_hex(ce->sha1));
}
switch (ntohl(ce->ce_mode) & S_IFMT) {
fd = create_file(path, ntohl(ce->ce_mode));
if (fd < 0) {
free(new);
- return error("checkout-cache: unable to create file %s (%s)",
+ return error("git-checkout-cache: unable to create file %s (%s)",
path, strerror(errno));
}
wrote = write(fd, new, size);
close(fd);
free(new);
if (wrote != size)
- return error("checkout-cache: unable to write file %s", path);
+ return error("git-checkout-cache: unable to write file %s", path);
break;
case S_IFLNK:
memcpy(target, new, size);
target[size] = '\0';
+ create_directories(path);
if (symlink(target, path)) {
free(new);
- return error("checkout-cache: unable to create symlink %s (%s)",
+ return error("git-checkout-cache: unable to create symlink %s (%s)",
path, strerror(errno));
}
free(new);
break;
default:
free(new);
- return error("checkout-cache: unknown file mode for %s", path);
+ return error("git-checkout-cache: unknown file mode for %s", path);
+ }
+
+ if (refresh_cache) {
+ struct stat st;
+ lstat(ce->name, &st);
+ fill_stat_cache_info(ce, &st);
}
return 0;
}
strcpy(path + len, ce->name);
if (!lstat(path, &st)) {
- unsigned changed = cache_match_stat(ce, &st);
+ unsigned changed = ce_match_stat(ce, &st);
if (!changed)
return 0;
if (!force) {
if (!quiet)
- fprintf(stderr, "checkout-cache: %s already exists\n", path);
+ fprintf(stderr, "git-checkout-cache: %s already exists\n", path);
return 0;
}
if (!quiet) {
pos = -pos - 1;
fprintf(stderr,
- "checkout-cache: %s is %s.\n",
+ "git-checkout-cache: %s is %s.\n",
name,
(pos < active_nr &&
!strcmp(active_cache[pos]->name, name)) ?
{
int i, force_filename = 0;
const char *base_dir = "";
+ struct cache_file cache_file;
+ int newfd = -1;
if (read_cache() < 0) {
die("invalid cache");
not_new = 1;
continue;
}
+ if (!strcmp(arg, "-u")) {
+ refresh_cache = 1;
+ if (newfd < 0)
+ newfd = hold_index_file_for_update
+ (&cache_file,
+ get_index_file());
+ if (newfd < 0)
+ die("cannot open index.lock file.");
+ continue;
+ }
if (!memcmp(arg, "--prefix=", 9)) {
base_dir = arg+9;
continue;
}
}
+ if (base_dir[0]) {
+ /* when --prefix is specified we do not
+ * want to update cache.
+ */
+ if (refresh_cache) {
+ close(newfd); newfd = -1;
+ rollback_index_file(&cache_file);
+ }
+ refresh_cache = 0;
+ }
checkout_file(arg, base_dir);
}
+
+ if (0 <= newfd &&
+ (write_cache(newfd, active_cache, active_nr) ||
+ commit_index_file(&cache_file)))
+ die("Unable to write new cachefile");
return 0;
}