2006-01-06 17:19:14 -05:00
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/*
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* deptest.c
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*
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* Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <alpm.h>
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/* pacman */
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#include "util.h"
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#include "list.h"
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#include "conf.h"
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#include "log.h"
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#include "sync.h"
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#include "deptest.h"
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extern config_t *config;
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int pacman_deptest(list_t *targets)
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{
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PM_LIST *data;
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list_t *i;
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char *str;
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2006-01-28 16:21:31 -05:00
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int retval = 0;
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2006-01-06 17:19:14 -05:00
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if(targets == NULL) {
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return(0);
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}
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if(config->op_d_vertest) {
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if(targets->data && targets->next && targets->next->data) {
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int ret = alpm_pkg_vercmp(targets->data, targets->next->data);
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printf("%d\n", ret);
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return(ret);
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}
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return(0);
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}
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/* we create a transaction to hold a dummy package to be able to use
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* deps checkings from alpm_trans_prepare() */
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if(alpm_trans_init(PM_TRANS_TYPE_ADD, 0, NULL, NULL) == -1) {
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ERR(NL, "%s", alpm_strerror(pm_errno));
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2006-01-27 14:02:56 -05:00
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if(pm_errno == PM_ERR_HANDLE_LOCK) {
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MSG(NL, " if you're sure a package manager is not already running,\n" \
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" you can remove %s\n", PM_LOCK);
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}
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2006-01-06 17:19:14 -05:00
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return(1);
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}
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/* We use a hidden facility from alpm_trans_addtarget() to add a dummy
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* target to the transaction (see the library code for details).
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* It allows us to use alpm_trans_prepare() to check dependencies of the
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* given target.
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*/
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str = (char *)malloc(strlen("name=dummy|version=1.0-1")+1);
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if(str == NULL) {
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ERR(NL, "memory allocation failure\n");
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2006-01-28 16:21:31 -05:00
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retval = 1;
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goto cleanup;
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2006-01-06 17:19:14 -05:00
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}
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strcpy(str, "name=dummy|version=1.0-1");
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for(i = targets; i; i = i->next) {
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str = (char *)realloc(str, strlen(str)+8+strlen(i->data)+1);
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strcat(str, "|depend=");
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strcat(str, i->data);
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}
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vprint("add target %s\n", str);
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if(alpm_trans_addtarget(str) == -1) {
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FREE(str);
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ERR(NL, "could not add target (%s)\n", alpm_strerror(pm_errno));
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2006-01-28 16:21:31 -05:00
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retval = 1;
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goto cleanup;
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2006-01-06 17:19:14 -05:00
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}
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FREE(str);
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if(alpm_trans_prepare(&data) == -1) {
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PM_LIST *lp;
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list_t *synctargs = NULL;
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2006-01-28 16:21:31 -05:00
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retval = 126;
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2006-01-13 16:02:33 -05:00
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/* return 126 = deps were missing, but successfully resolved
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* return 127 = deps were missing, and failed to resolve; OR
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* = deps were missing, but no resolution was attempted; OR
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* = unresolvable conflicts were found
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*/
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2006-01-06 17:19:14 -05:00
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switch(pm_errno) {
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case PM_ERR_UNSATISFIED_DEPS:
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for(lp = alpm_list_first(data); lp; lp = alpm_list_next(lp)) {
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PM_DEPMISS *miss = alpm_list_getdata(lp);
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if(!config->op_d_resolve) {
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MSG(NL, "requires: %s", alpm_dep_getinfo(miss, PM_DEP_NAME));
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switch((int)alpm_dep_getinfo(miss, PM_DEP_MOD)) {
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case PM_DEP_MOD_EQ: MSG(CL, "=%s", alpm_dep_getinfo(miss, PM_DEP_VERSION)); break;
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case PM_DEP_MOD_GE: MSG(CL, ">=%s", alpm_dep_getinfo(miss, PM_DEP_VERSION)); break;
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case PM_DEP_MOD_LE: MSG(CL, "<=%s", alpm_dep_getinfo(miss, PM_DEP_VERSION)); break;
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}
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MSG(CL, "\n");
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}
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synctargs = list_add(synctargs, strdup(alpm_dep_getinfo(miss, PM_DEP_NAME)));
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}
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alpm_list_free(data);
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break;
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case PM_ERR_CONFLICTING_DEPS:
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/* we can't auto-resolve conflicts */
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for(lp = alpm_list_first(data); lp; lp = alpm_list_next(lp)) {
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PM_DEPMISS *miss = alpm_list_getdata(lp);
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MSG(NL, "conflict: %s", alpm_dep_getinfo(miss, PM_DEP_NAME));
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}
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2006-01-28 16:21:31 -05:00
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retval = 127;
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2006-01-06 17:19:14 -05:00
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alpm_list_free(data);
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break;
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default:
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2006-01-28 16:21:31 -05:00
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retval = 127;
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2006-01-06 17:19:14 -05:00
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break;
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}
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/* attempt to resolve missing dependencies */
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/* TODO: handle version comparators (eg, glibc>=2.2.5) */
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2006-01-28 16:21:31 -05:00
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if(retval == 126 && synctargs != NULL) {
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2006-01-06 17:19:14 -05:00
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if(!config->op_d_resolve || pacman_sync(synctargs) != 0) {
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/* error (or -D not used) */
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2006-01-28 16:21:31 -05:00
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retval = 127;
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2006-01-06 17:19:14 -05:00
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}
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}
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2006-01-28 16:21:31 -05:00
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2006-01-06 17:19:14 -05:00
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FREELIST(synctargs);
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}
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2006-01-28 16:21:31 -05:00
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cleanup:
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2006-01-06 17:19:14 -05:00
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if(alpm_trans_release() == -1) {
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ERR(NL, "could not release transaction (%s)", alpm_strerror(pm_errno));
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2006-01-28 16:21:31 -05:00
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retval = 1;
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2006-01-06 17:19:14 -05:00
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}
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2006-01-28 16:21:31 -05:00
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return(retval);
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2006-01-06 17:19:14 -05:00
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}
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/* vim: set ts=2 sw=2 noet: */
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