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#include "builtin.h"
#include "cache.h"
static const char prune_packed_usage[] =
"git-prune-packed [-n]";
#define DRY_RUN 01
#define VERBOSE 02
static void prune_dir(int i, DIR *dir, char *pathname, int len, int opts)
{
struct dirent *de;
char hex[40];
sprintf(hex, "%02x", i);
while ((de = readdir(dir)) != NULL) {
unsigned char sha1[20];
if (strlen(de->d_name) != 38)
continue;
memcpy(hex+2, de->d_name, 38);
if (get_sha1_hex(hex, sha1))
continue;
if (!has_sha1_pack(sha1, NULL))
continue;
memcpy(pathname + len, de->d_name, 38);
if (opts & DRY_RUN)
printf("rm -f %s\n", pathname);
else if (unlink(pathname) < 0)
error("unable to unlink %s", pathname);
}
pathname[len] = 0;
rmdir(pathname);
}
void prune_packed_objects(int opts)
{
int i;
static char pathname[PATH_MAX];
const char *dir = get_object_directory();
int len = strlen(dir);
if (len > PATH_MAX - 42)
die("impossible object directory");
memcpy(pathname, dir, len);
if (len && pathname[len-1] != '/')
pathname[len++] = '/';
for (i = 0; i < 256; i++) {
DIR *d;
sprintf(pathname + len, "%02x/", i);
d = opendir(pathname);
if (opts == VERBOSE && (d || i == 255))
fprintf(stderr, "Removing unused objects %d%%...\015",
((i+1) * 100) / 256);
if (!d)
continue;
prune_dir(i, d, pathname, len + 3, opts);
closedir(d);
}
if (opts == VERBOSE)
fprintf(stderr, "\nDone.\n");
}
int cmd_prune_packed(int argc, const char **argv, const char *prefix)
{
int i;
int opts = VERBOSE;
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (*arg == '-') {
if (!strcmp(arg, "-n"))
opts |= DRY_RUN;
else if (!strcmp(arg, "-q"))
opts &= ~VERBOSE;
else
usage(prune_packed_usage);
continue;
}
/* Handle arguments here .. */
usage(prune_packed_usage);
}
sync();
prune_packed_objects(opts);
return 0;
}
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