moved pacman_deptest function in its own file

1 files changed, 155 insertions, 0 deletions

diff --git a/src/pacman/deptest.c b/src/pacman/deptest.c
new file mode 100644
index 00000000..de7e83ec
--- /dev/null
+++ b/src/pacman/deptest.c
@@ -0,0 +1,155 @@
+/*
+ *  deptest.c
+ * 
+ *  Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.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, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 
+ *  USA.
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <alpm.h>
+/* pacman */
+#include "util.h"
+#include "list.h"
+#include "conf.h"
+#include "log.h"
+#include "sync.h"
+#include "deptest.h"
+
+extern config_t *config;
+
+int pacman_deptest(list_t *targets)
+{
+	PM_LIST *data;
+	list_t *i;
+	char *str;
+
+	if(targets == NULL) {
+		return(0);
+	}
+
+	if(config->op_d_vertest) {
+		if(targets->data && targets->next && targets->next->data) {
+			int ret = alpm_pkg_vercmp(targets->data, targets->next->data);
+			printf("%d\n", ret);
+			return(ret);
+		}
+		return(0);
+	}
+
+	/* we create a transaction to hold a dummy package to be able to use
+	 * deps checkings from alpm_trans_prepare() */
+	if(alpm_trans_init(PM_TRANS_TYPE_ADD, 0, NULL, NULL) == -1) {
+		ERR(NL, "%s", alpm_strerror(pm_errno));
+		return(1);
+	}
+
+	/* We use a hidden facility from alpm_trans_addtarget() to add a dummy
+	 * target to the transaction (see the library code for details).
+	 * It allows us to use alpm_trans_prepare() to check dependencies of the
+	 * given target.
+	 */
+	str = (char *)malloc(strlen("name=dummy|version=1.0-1")+1);
+	if(str == NULL) {
+		ERR(NL, "memory allocation failure\n");
+		if(alpm_trans_release() == -1) {
+			ERR(NL, "could not release transaction (%s)", alpm_strerror(pm_errno));
+		}
+		return(1);
+	}
+	strcpy(str, "name=dummy|version=1.0-1");
+	for(i = targets; i; i = i->next) {
+		str = (char *)realloc(str, strlen(str)+8+strlen(i->data)+1);
+		strcat(str, "|depend=");
+		strcat(str, i->data);
+	}
+	vprint("add target %s\n", str);
+	if(alpm_trans_addtarget(str) == -1) {
+		FREE(str);
+		ERR(NL, "could not add target (%s)\n", alpm_strerror(pm_errno));
+		if(alpm_trans_release() == -1) {
+			ERR(NL, "could not release transaction (%s)", alpm_strerror(pm_errno));
+		}
+		return(1);
+	}
+	FREE(str);
+
+	if(alpm_trans_prepare(&data) == -1) {
+		PM_LIST *lp;
+		int ret = 126;
+		list_t *synctargs = NULL;
+
+		switch(pm_errno) {
+			case PM_ERR_UNSATISFIED_DEPS:
+				for(lp = alpm_list_first(data); lp; lp = alpm_list_next(lp)) {
+					PM_DEPMISS *miss = alpm_list_getdata(lp);
+					if(!config->op_d_resolve) {
+						MSG(NL, "requires: %s", alpm_dep_getinfo(miss, PM_DEP_NAME));
+						switch((int)alpm_dep_getinfo(miss, PM_DEP_MOD)) {
+							case PM_DEP_MOD_EQ: MSG(CL, "=%s", alpm_dep_getinfo(miss, PM_DEP_VERSION));  break;
+							case PM_DEP_MOD_GE: MSG(CL, ">=%s", alpm_dep_getinfo(miss, PM_DEP_VERSION)); break;
+							case PM_DEP_MOD_LE: MSG(CL, "<=%s", alpm_dep_getinfo(miss, PM_DEP_VERSION)); break;
+						}
+						MSG(CL, "\n");
+					}
+					synctargs = list_add(synctargs, strdup(alpm_dep_getinfo(miss, PM_DEP_NAME)));
+				}
+				alpm_list_free(data);
+			break;
+			case PM_ERR_CONFLICTING_DEPS:
+				/* we can't auto-resolve conflicts */
+				for(lp = alpm_list_first(data); lp; lp = alpm_list_next(lp)) {
+					PM_DEPMISS *miss = alpm_list_getdata(lp);
+					MSG(NL, "conflict: %s", alpm_dep_getinfo(miss, PM_DEP_NAME));
+				}
+				ret = 127;
+				alpm_list_free(data);
+			break;
+			default:
+				ret = 127;
+			break;
+		}
+
+		if(alpm_trans_release() == -1) {
+			ERR(NL, "could not release transaction (%s)", alpm_strerror(pm_errno));
+			return(1);
+		}
+
+		/* attempt to resolve missing dependencies */
+		/* TODO: handle version comparators (eg, glibc>=2.2.5) */
+		if(ret == 126 && synctargs != NULL) {
+			if(!config->op_d_resolve || pacman_sync(synctargs) != 0) {
+				/* error (or -D not used) */
+				ret = 127;
+			}
+		}
+		FREELIST(synctargs);
+		return(ret);
+	}
+
+	if(alpm_trans_release() == -1) {
+		ERR(NL, "could not release transaction (%s)", alpm_strerror(pm_errno));
+		return(1);
+	}
+
+	return(0);
+}
+
+/* vim: set ts=2 sw=2 noet: */