/* library-find.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 "hackerlab/cmd/main.h"
#include "file-utils/libarch/my.h"
#include "file-utils/libarch/libraries.h"
#include "file-utils/libarch/namespace.h"



static t_uchar * program_name = "library-find";
static t_uchar * usage = "[options] revision";
static t_uchar * version_string = (cfg__std__package " from regexps.com\n"
				   "\n"
				   "Copyright 2003 Tom Lord\n"
				   "\n"
				   "This is free software; see the source for copying conditions.\n"
				   "There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A\n"
				   "PARTICULAR PURPOSE.\n"
				   "\n"
				   "Report bugs to " cfg__file_utils_bug_mail ".\n"
				   "\n");

#define OPTS(OP, OP2) \
  OP (opt_help_msg, "h", "help", 0, \
      "Display a help message and exit.") \
  OP (opt_long_help, "H", 0, 0, \
      "Display a verbose help message and exit.") \
  OP (opt_version, "V", "version", 0, \
      "Display a release identifier string") \
  OP2 (opt_version, 0, 0, 0, "and exit.") \
  OP (opt_archive, "A", "archive", 1, \
      "specify a default archive name") \
  OP (opt_errname, "e", "errname", 1, \
      "specify program name for errors") \
  OP (opt_silent, "s", "silent", 0, \
      "suppress reassuring messages")

static t_uchar long_help[] = ("print or change your default archive\n");

enum options
{
  OPTS (OPT_ENUM, OPT_IGN)  
};

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



int
main (int argc, char * argv[])
{
  int o;
  struct opt_parsed * option;
  t_uchar * default_archive;
  char * errname;
  int silent;

  default_archive = 0;
  errname = "library-find";
  silent = 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, version_string, long_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:
          {
            default_archive = str_save (0, option->arg_string);
            break;
          }

        case opt_errname:
          {
            if (!option->arg_string[0])
              errname = 0;
            else
              errname = str_save (0, option->arg_string);
            break;
          }

        case opt_silent:
          {
            silent = 1;
            break;
          }
	}
    }

  if (argc != 2)
    goto usage_error;

  if (default_archive && !arch_valid_archive_name (default_archive))
    {
      safe_printfmt (2, "library-find: invalid archive name (%s)\n", default_archive);
      exit (1);
    }

  {
    t_uchar * revspec;
    t_uchar * archive = 0;
    t_uchar * revision = 0;
    t_uchar * answer = 0;

    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", (errname ? errname : "library-find"), revspec);
        exit (2);
      }

    archive = arch_parse_package_name (arch_ret_archive, default_archive, revspec);
    if (!archive)
      {
        safe_printfmt (2, "%s: no archive specified for library-find\n", (errname ? errname : "library-find"));
        exit (2);
      }

    revision = arch_parse_package_name (arch_ret_non_archive, 0, revspec);

    answer = arch_library_find (archive, revision);

    if (answer)
      safe_printfmt (1, "%s\n", answer);
    else
      {
        if (!silent)
          {
            safe_printfmt (2, "%s: revision not present in library (%s/%s)\n", (errname ? errname : "library-find"), archive, revision);
          }
        exit (1);
      }

    lim_free (0, archive);
    lim_free (0, revision);
    lim_free (0, answer);
  }
  
  return 0;
}




/* tag: Tom Lord Wed May 21 14:05:20 2003 (library-find.c)
 */
