/* * cleanupdelta.c : return list of unused delta in a given sync database * * Copyright (c) 2011 Pacman Development Team <pacman-dev@archlinux.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "config.h" #include <stdio.h> #include <stdlib.h> #include <string.h> #include <limits.h> /* PATH_MAX */ #include <alpm.h> #include <alpm_list.h> #define BASENAME "cleanupdelta" pmhandle_t *handle = NULL; static void cleanup(int signum) { if(handle && alpm_release(handle) == -1) { fprintf(stderr, "error releasing alpm\n"); } exit(signum); } static void output_cb(pmloglevel_t level, const char *fmt, va_list args) { if(strlen(fmt)) { switch(level) { case PM_LOG_ERROR: printf("error: "); break; case PM_LOG_WARNING: printf("warning: "); break; //case PM_LOG_DEBUG: printf("debug: "); break; default: return; } vprintf(fmt, args); } } static void checkpkgs(alpm_list_t *pkglist) { alpm_list_t *i, *j; for(i = pkglist; i; i = alpm_list_next(i)) { pmpkg_t *pkg = alpm_list_getdata(i); alpm_list_t *unused = alpm_pkg_unused_deltas(pkg); for(j = unused; j; j = alpm_list_next(j)) { char *delta = alpm_list_getdata(j); printf("%s\n", delta); } alpm_list_free(unused); } } static void checkdbs(const char *dbpath, alpm_list_t *dbnames) { char syncdbpath[PATH_MAX]; pmdb_t *db = NULL; alpm_list_t *i; for(i = dbnames; i; i = alpm_list_next(i)) { char *dbname = alpm_list_getdata(i); snprintf(syncdbpath, PATH_MAX, "%s/sync/%s", dbpath, dbname); db = alpm_db_register_sync(handle, dbname); if(db == NULL) { fprintf(stderr, "error: could not register sync database (%s)\n", alpm_strerror(alpm_errno(handle))); return; } checkpkgs(alpm_db_get_pkgcache(db)); } } static void usage(void) { fprintf(stderr, "usage:\n"); fprintf(stderr, "\t%s [-b <pacman db>] core extra ... : check the listed sync databases\n", BASENAME); exit(1); } int main(int argc, char *argv[]) { const char *dbpath = DBPATH; enum _pmerrno_t err; int a = 1; alpm_list_t *dbnames = NULL; while(a < argc) { if(strcmp(argv[a], "-b") == 0) { if(++a < argc) { dbpath = argv[a]; } else { usage(); } } else if(strcmp(argv[a], "-h") == 0 || strcmp(argv[a], "--help") == 0 ) { usage(); } else { dbnames = alpm_list_add(dbnames, argv[a]); } a++; } if(!dbnames) { usage(); } handle = alpm_initialize(ROOTDIR, dbpath, &err); if(!handle) { fprintf(stderr, "cannot initialize alpm: %s\n", alpm_strerror(err)); return 1; } /* let us get log messages from libalpm */ alpm_option_set_logcb(handle, output_cb); checkdbs(dbpath,dbnames); alpm_list_free(dbnames); cleanup(0); } /* vim: set ts=2 sw=2 noet: */