/* cmd-find-pristine.c
 *
 ****************************************************************
 * Copyright (C) 2003 Tom Lord
 *
 * See the file "COPYING" for further information about
 * the copyright and warranty status of this work.
 */


#include "config-options.h"
#include "po/gettext.h"
#include "hackerlab/bugs/exception.h"
#include "hackerlab/cmd/main.h"
#include "libarch/namespace.h"
#include "libarch/project-tree.h"
#include "libarch/pristines.h"
#include "commands/cmd.h"
#include "commands/find-pristine.h"
#include "commands/version.h"



static t_uchar * usage = N_("[options] revision");

#define OPTS(OP) \
  OP (opt_help_msg, "h", "help", 0, \
      N_("Display a help message and exit.")) \
  OP (opt_long_help, "H", 0, 0, \
      N_("Display a verbose help message and exit.")) \
  OP (opt_version, "V", "version", 0, \
      N_("Display a release identifier string\n" \
      "and exit.")) \
  OP (opt_archive, "A", "archive", 1, \
      N_("Override `my-default-archive'")) \
  OP (opt_dir, "d", "dir DIR", 1, \
      N_("cd to DIR first")) \
  OP (opt_silent, "s", "silent", 0, \
      N_("exit status only"))

t_uchar arch_cmd_find_pristine_help[] = N_("find and print the path to a pristine revision\n"
                                         "Print the location of a pristine copy of the indicated revision\n");

enum options
{
  OPTS (OPT_ENUM)
};

static struct opt_desc opts[] =
{
  OPTS (OPT_DESC)
    {-1, 0, 0, 0, 0}
};



int
arch_cmd_find_pristine (t_uchar * program_name, int argc, char * argv[])
{
  int o;
  struct opt_parsed * option;
  int silent;
  char * dir;
  t_uchar * default_archive;

  silent = 0;
  dir = str_save (0, ".");
  default_archive = 0;

  safe_buffer_fd (1, 0, O_WRONLY, 0);

  option = 0;

  while (1)
    {
      o = opt_standard (lim_use_must_malloc, &option, opts, &argc, argv, program_name, usage, libarch_version_string, arch_cmd_find_pristine_help, opt_help_msg, opt_long_help, opt_version);
      if (o == opt_none)
        break;
      switch (o)
        {
        default:
          safe_printfmt (2, "unhandled option `%s'\n", option->opt_string);
          panic ("internal error parsing arguments");

        usage_error:
          opt_usage (2, argv[0], program_name, usage, 1);
          exit (1);

          /* bogus_arg: */
          safe_printfmt (2, "ill-formed argument for `%s' (`%s')\n", option->opt_string, option->arg_string);
          goto usage_error;


        case opt_archive:
          {
            lim_free (0, default_archive);
            default_archive = str_save (0, option->arg_string);
            break;
          }

        case opt_dir:
          {
            lim_free (0, dir);
            dir = str_save (0, option->arg_string);
            break;
          }

        case opt_silent:
          {
            silent = 1;
            break;
          }

        }
    }

  if (argc != 2)
    goto usage_error;

  {
    t_uchar * revspec;
    arch_project_tree_t * tree;
    arch_patch_id * revision = NULL;
    arch_project_tree_t * pristine;

    if (default_archive && !arch_valid_archive_name (default_archive))
      {
        safe_printfmt (2, "%s: invalid archive name (%s)\n",
                       argv[0], default_archive);
        exit (2);
      }

    revspec = argv[1];

    if (!arch_valid_package_name (revspec, arch_maybe_archive, arch_req_patch_level, 0))
      {
        safe_printfmt (2, "%s: invalid revision name (%s)\n",
                       argv[0], revspec);
        exit (2);
      }

    revision = arch_patch_id_new (revspec);
    tree = arch_project_tree_new (talloc_context, dir);

    if (!tree->root)
      {
        safe_printfmt (2, "%s: directory is not a project tree (%s)\n",
                       argv[0], dir);
        exit (2);
      }

    pristine = arch_find_pristine (tree, revision, arch_tree_pristine_search);

    if (pristine)
      safe_printfmt (1, "%s\n", pristine->root);
    else
      {
        if (!silent)
          {
            safe_printfmt (2, "%s: unable to find pristine for %s\n",
                           argv[0], arch_patch_id_patch_id (revision));
          }
        exit (1);
      }
    arch_project_tree_delete (pristine);
    arch_project_tree_delete (tree);
    talloc_free (revision);
  }

  return 0;
}




/* tag: Tom Lord Wed May 21 19:30:43 2003 (find-pristine.c)
 */