xbps/bin/xbps-repo/clean.c

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/*-
* Copyright (c) 2012 Juan Romero Pardines.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <dirent.h>
#include <assert.h>
#include "defs.h"
int
cachedir_clean(struct xbps_handle *xhp)
{
prop_dictionary_t pkg_propsd, repo_pkgd;
DIR *dirp;
struct dirent *dp;
const char *pkgver, *rsha256;
char *binpkg;
int rv = 0;
if ((dirp = opendir(xhp->cachedir)) == NULL)
return 0;
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 (!strstr(dp->d_name, ".xbps")) {
printf("ignoring unknown file: %s\n", dp->d_name);
continue;
}
/* Internalize props.plist dictionary from binary pkg */
binpkg = xbps_xasprintf("%s/%s", xhp->cachedir, dp->d_name);
assert(binpkg != NULL);
pkg_propsd = xbps_dictionary_metadata_plist_by_url(binpkg,
"./props.plist");
if (pkg_propsd == NULL) {
xbps_error_printf("Failed to read from %s: %s\n",
dp->d_name, strerror(errno));
free(binpkg);
rv = errno;
break;
}
prop_dictionary_get_cstring_nocopy(pkg_propsd, "pkgver", &pkgver);
/*
* Remove binary pkg if it's not registered in any repository
* or if hash doesn't match.
*/
repo_pkgd = xbps_rpool_find_pkg_exact(xhp, pkgver);
if (repo_pkgd) {
prop_dictionary_get_cstring_nocopy(repo_pkgd,
"filename-sha256", &rsha256);
if (xbps_file_hash_check(binpkg, rsha256) == ERANGE) {
printf("Removed %s from cachedir (sha256 mismatch)\n",
dp->d_name);
if (unlink(binpkg) == -1)
fprintf(stderr, "Failed to remove "
"`%s': %s\n", binpkg,
strerror(errno));
}
free(binpkg);
continue;
}
printf("Removed %s from cachedir (obsolete)\n", dp->d_name);
if (unlink(binpkg) == -1)
fprintf(stderr, "Failed to remove `%s': %s\n",
binpkg, strerror(errno));
free(binpkg);
}
closedir(dirp);
return rv;
}