xbps/bin/xbps-remove/clean-cache.c
2020-04-24 11:44:19 +02:00

116 lines
2.7 KiB
C

/*-
* Licensed under the SPDX BSD-2-Clause identifier.
* Use is subject to license terms, as specified in the LICENSE file.
*/
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <errno.h>
#include <assert.h>
#include <unistd.h>
#include <dirent.h>
#include <xbps.h>
#include "defs.h"
static int
cleaner_cb(struct xbps_handle *xhp, xbps_object_t obj,
const char *key UNUSED, void *arg,
bool *done UNUSED)
{
xbps_dictionary_t repo_pkgd;
const char *binpkg, *rsha256;
char *binpkgsig, *pkgver, *arch;
bool drun = false;
/* Extract drun (dry-run) flag from arg*/
if (arg != NULL)
drun = *(bool*)arg;
/* Internalize props.plist dictionary from binary pkg */
binpkg = xbps_string_cstring_nocopy(obj);
arch = xbps_binpkg_arch(binpkg);
assert(arch);
if (!xbps_pkg_arch_match(xhp, arch, NULL)) {
xbps_dbg_printf(xhp, "%s: ignoring binpkg with unmatched arch (%s)\n", binpkg, arch);
free(arch);
return 0;
}
free(arch);
/*
* Remove binary pkg if it's not registered in any repository
* or if hash doesn't match.
*/
pkgver = xbps_binpkg_pkgver(binpkg);
assert(pkgver);
repo_pkgd = xbps_rpool_get_pkg(xhp, pkgver);
free(pkgver);
if (repo_pkgd) {
xbps_dictionary_get_cstring_nocopy(repo_pkgd,
"filename-sha256", &rsha256);
if (xbps_file_sha256_check(binpkg, rsha256) == 0) {
/* hash matched */
return 0;
}
}
binpkgsig = xbps_xasprintf("%s.sig", binpkg);
if (!drun && unlink(binpkg) == -1) {
fprintf(stderr, "Failed to remove `%s': %s\n",
binpkg, strerror(errno));
} else {
printf("Removed %s from cachedir (obsolete)\n", binpkg);
}
if (!drun && unlink(binpkgsig) == -1) {
if (errno != ENOENT) {
fprintf(stderr, "Failed to remove `%s': %s\n",
binpkgsig, strerror(errno));
}
}
free(binpkgsig);
return 0;
}
int
clean_cachedir(struct xbps_handle *xhp, bool drun)
{
xbps_array_t array = NULL;
DIR *dirp;
struct dirent *dp;
char *ext;
int rv = 0;
if (chdir(xhp->cachedir) == -1)
return -1;
if ((dirp = opendir(xhp->cachedir)) == NULL)
return 0;
array = xbps_array_create();
while ((dp = readdir(dirp)) != NULL) {
if ((strcmp(dp->d_name, ".") == 0) ||
(strcmp(dp->d_name, "..") == 0))
continue;
/* only process xbps binary packages, ignore something else */
if ((ext = strrchr(dp->d_name, '.')) == NULL)
continue;
if (strcmp(ext, ".xbps")) {
xbps_dbg_printf(xhp, "ignoring unknown file: %s\n", dp->d_name);
continue;
}
xbps_array_add_cstring(array, dp->d_name);
}
(void)closedir(dirp);
if (xbps_array_count(array)) {
rv = xbps_array_foreach_cb_multi(xhp, array, NULL, cleaner_cb, (void*)&drun);
xbps_object_release(array);
}
return rv;
}