src/util/convertdb.c


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/*
 *  convertdb.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 <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <limits.h>
#include <string.h>
#include <libgen.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "alpm.h"
#include "list.h"
#include "util.h"

int main(int argc, char* argv[])
{
  FILE* db = NULL;
  FILE* fp = NULL;
  char* ptr = NULL;
  char  name[256];
  char  ver[256];
  char  line[PATH_MAX+1];
  char  topdir[PATH_MAX+1];
  char  path[PATH_MAX+1];
  mode_t oldumask;
  struct stat buf;
  char dbdir[PATH_MAX];

  sprintf(dbdir, "/%s", PM_DBPATH);

  if(argc < 2) {
    printf("converts a pacman 1.x database to a pacman 2.0 format\n");
    printf("usage: %s <target_dir>\n\n", basename(argv[0]));
    printf("convertdb will convert all package data from /var/lib/pacman/pacman.db\n");
    printf("to a 2.0 format and place it in target_dir.\n\n");
    return(0);
  }

  db = fopen(dbdir, "r");
  if(db == NULL) {
    perror(dbdir);
    return(1);
  }

  oldumask = umask(0000);
  while(fgets(name, 255, db)) {
    PMList *backup = NULL;
    PMList *lp;

    if(!fgets(ver, 255, db)) {
      perror(dbdir);
      return(1);
    }
    _alpm_strtrim(name);
    _alpm_strtrim(ver);
    fprintf(stderr, "converting %s\n", name);
    /* package directory */
    snprintf(topdir, PATH_MAX, "%s/%s-%s", argv[1], name, ver);
    mkdir(topdir, 0755);

    /* DESC */
    snprintf(path, PATH_MAX, "%s/desc", topdir);
    if(!(fp = fopen(path, "w"))) {
      perror(path);
      return(1);
    }
    fputs("%NAME%\n", fp);
    fprintf(fp, "%s\n\n", name);
    fputs("%VERSION%\n", fp);
    fprintf(fp, "%s\n\n", ver);
    fputs("%DESC%\n\n", fp);
    fclose(fp);

    /* DEPENDS */
    snprintf(path, PATH_MAX, "%s/depends", topdir);
    if(!(fp = fopen(path, "w"))) {
      perror(path);
      return(1);
    }
    fputs("%DEPENDS%\n\n", fp);
    fputs("%REQUIREDBY%\n\n", fp);
    fputs("%CONFLICTS%\n\n", fp);
    fclose(fp);

    /* FILES */
    snprintf(path, PATH_MAX, "%s/files", topdir);
    if(!(fp = fopen(path, "w"))) {
      perror(path);
      return(1);
    }
    fputs("%FILES%\n", fp);
    while(fgets(line, 255, db) && strcmp(_alpm_strtrim(line), "")) {
      ptr = line;

      /* check for backup designation and frontslashes that shouldn't be there */
      if(line[0] == '*') ptr++;
      if(*ptr == '/')    ptr++;
      if(line[0] == '*') backup = _alpm_list_add(backup, strdup(ptr));
  
      fprintf(fp, "%s\n", ptr);
    }
    fprintf(fp, "\n");
    fputs("%BACKUP%\n", fp);
    for(lp = backup; lp; lp = lp->next) {
      /* print the filename and a bad md5 hash.  we just use 32 f's cuz we can't
       * md5 the original file since we don't have it
       */
      fprintf(fp, "%s\tffffffffffffffffffffffffffffffff\n", (char*)lp->data);
    }
    fputs("\n", fp);
    fclose(fp);
    snprintf(path, PATH_MAX, "/var/lib/pacman/scripts/%s", name);
    if(!stat(path, &buf)) {
      snprintf(line, PATH_MAX, "/bin/cp %s %s/install", path, topdir);
      system(line);
    }
    _alpm_list_free(backup);
  }
  umask(oldumask);
  return(0);
}

/* vim: set ts=2 sw=2 noet: */