Add testdb util for finding inconsistencies in the database.

Signed-off-by: Chantry Xavier <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>

src/util/.gitignore

@@ -2,3 +2,4 @@
 .libs
 vercmp
 testpkg
+testdb

src/util/Makefile.am

@@ -1,4 +1,4 @@
-bin_PROGRAMS = vercmp testpkg
+bin_PROGRAMS = vercmp testpkg testdb
 
 INCLUDES = -I$(top_srcdir)/lib/libalpm
 
@@ -10,4 +10,7 @@ vercmp_LDADD = $(top_builddir)/lib/libalpm/.libs/libalpm.la
 testpkg_SOURCES = testpkg.c
 testpkg_LDADD = $(top_builddir)/lib/libalpm/.libs/libalpm.la
 
+testdb_SOURCES = testdb.c
+testdb_LDADD = $(top_builddir)/lib/libalpm/.libs/libalpm.la
+
 # vim:set ts=2 sw=2 noet:

src/util/testdb.c

@@ -0,0 +1,189 @@
+/*
+ *  testdb.c : Test a pacman local database for validity
+ *
+ *  Copyright (c) 2007 by Aaron Griffin <aaronmgriffin@gmail.com>
+ * 
+ *  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 <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#include <libgen.h>
+
+#include <alpm.h>
+#include <alpm_list.h>
+
+int _alpm_str_cmp(const void *s1, const void *s2)
+{
+  return(strcmp(s1, s2));
+}
+
+static void diffrqdby(const char *pkgname, alpm_list_t *oldrqdby, alpm_list_t *newrqdby)
+{
+  oldrqdby = alpm_list_msort(oldrqdby, alpm_list_count(oldrqdby), _alpm_str_cmp);
+  newrqdby = alpm_list_msort(newrqdby, alpm_list_count(newrqdby), _alpm_str_cmp);
+
+  alpm_list_t *i = oldrqdby;
+  alpm_list_t *j = newrqdby;
+
+  while(i || j) {
+    char *s1 = NULL;
+    char *s2 = NULL;
+    int n;
+    if(i && !j) {
+      n = -1;
+    } else if(!i && j) {
+      n = 1;
+    } else {
+      s1 = i->data;
+      s2 = j->data;
+      n = strcmp(s1, s2);
+    }
+    if(n < 0) {
+      s1 = i->data;
+      printf("wrong requiredby for %s : %s\n", pkgname, s1);
+      i = i->next;
+    } else if (n > 0) {
+      s2 = j->data;
+      printf("missing requiredby for %s : %s\n", pkgname, s2);
+      j = j->next;
+    } else {
+      i = i->next;
+      j = j->next;
+    }
+  }
+}
+
+static void cleanup(int signum) {
+  if(alpm_release() == -1) {
+    fprintf(stderr, "error releasing alpm: %s\n", alpm_strerrorlast());
+  }
+
+  exit(signum);
+}
+
+void output_cb(pmloglevel_t level, char *fmt, va_list args)
+{
+  if(strlen(fmt)) {
+    switch(level) {
+      case PM_LOG_ERROR: printf("error: "); break;
+      case PM_LOG_WARNING: printf("warning: "); break;
+      default: return;
+    }
+    vprintf(fmt, args);
+    printf("\n");
+  }
+}
+
+int db_test(char *dbpath)
+{
+  struct dirent *ent;
+  char path[PATH_MAX];
+  struct stat buf;
+  int ret = 0;
+
+  DIR *dir;
+  
+  if(!(dir = opendir(dbpath))) {
+    fprintf(stderr, "error : %s : %s\n", dbpath, strerror(errno));
+    return(1);
+  }
+
+  while ((ent = readdir(dir)) != NULL) {
+    if(!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, "..")) {
+      continue;
+    }
+    /* check for desc, depends, and files */
+    snprintf(path, PATH_MAX, "%s/%s/desc", dbpath, ent->d_name);
+    if(stat(path, &buf)) {
+      printf("%s: description file is missing\n", ent->d_name);
+      ret++;
+    }
+    snprintf(path, PATH_MAX, "%s/%s/depends", dbpath, ent->d_name);
+    if(stat(path, &buf)) {
+      printf("%s: dependency file is missing\n", ent->d_name);
+      ret++;
+    }
+    snprintf(path, PATH_MAX, "%s/%s/files", dbpath, ent->d_name);
+    if(stat(path, &buf)) {
+      printf("%s: file list is missing\n", ent->d_name);
+      ret++;
+    }
+  }
+  return(ret);
+}
+
+int main(int argc, char **argv)
+{
+  int retval = 0; /* default = false */
+  pmdb_t *db = NULL;
+  char dbpath[PATH_MAX];
+  alpm_list_t *i;
+
+  if(argc != 2) {
+    fprintf(stderr, "usage: %s <pacman db>\n", basename(argv[0]));
+    return(1);
+  }
+
+  snprintf(dbpath, PATH_MAX, "%s/local", argv[1]);
+
+  retval = db_test(dbpath);
+  if(retval) {
+    exit(retval);
+  }
+
+  if(alpm_initialize() == -1) {
+    fprintf(stderr, "cannot initialize alpm: %s\n", alpm_strerrorlast());
+    return(1);
+  }
+
+  /* let us get log messages from libalpm */
+  alpm_option_set_logcb(output_cb);
+
+  alpm_option_set_dbpath(argv[1]);
+
+  db = alpm_db_register_local();
+  if(db == NULL) {
+    fprintf(stderr, "error: could not register 'local' database (%s)\n",
+        alpm_strerrorlast());
+    cleanup(EXIT_FAILURE);
+  }
+
+  /* check dependencies */
+	alpm_list_t *data;
+  data = alpm_checkdeps(db, PM_TRANS_TYPE_ADD, alpm_db_getpkgcache(db));
+  for(i = data; i; i = alpm_list_next(i)) {
+    pmdepmissing_t *miss = alpm_list_getdata(i);
+    pmdepend_t *dep = alpm_miss_get_dep(miss);
+    printf("missing dependency for %s : %s\n", alpm_miss_get_target(miss),
+        alpm_dep_get_name(dep));
+  }
+
+  /* check requiredby */
+  for(i = alpm_db_getpkgcache(db); i; i = alpm_list_next(i)) {
+    pmpkg_t *pkg = alpm_list_getdata(i);
+    const char *pkgname = alpm_pkg_get_name(pkg);
+    alpm_list_t *rqdby = alpm_pkg_compute_requiredby(pkg);
+    diffrqdby(pkgname, alpm_pkg_get_requiredby(pkg), rqdby);
+  }
+
+  cleanup(retval);
+}