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fr-command-ar.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */

/*
 *  File-Roller
 *
 *  Copyright (C) 2001, 2003, 2004 Free Software Foundation, Inc.
 *
 *  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 Street #330, Boston, MA 02111-1307, USA.
 */

#include <stdlib.h>
#include <string.h>
#include <time.h>

#include <glib.h>
#include <libgnomevfs/gnome-vfs-types.h>
#include <libgnomevfs/gnome-vfs-mime.h>

#include "file-data.h"
#include "file-utils.h"
#include "fr-command.h"
#include "fr-command-ar.h"

static void fr_command_ar_class_init  (FRCommandArClass *class);
static void fr_command_ar_init        (FRCommand        *afile);
static void fr_command_ar_finalize    (GObject          *object);

/* Parent Class */

static FRCommandClass *parent_class = NULL;


/* -- list -- */

static time_t
mktime_from_string (char *time_s,
                char *day_s,
                char *month_s,
                char *year_s)
{
      static char  *months[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", 
                           "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
      struct tm    tm = {0, };
      char       **fields;

      /* date */

      if (month_s != NULL) {
            int i;
            for (i = 0; i < 12; i++)
                  if (strcmp (months[i], month_s) == 0) {
                        tm.tm_mon = i;
                        break;
                  }
      }
      tm.tm_mday = atoi (day_s);
      tm.tm_year = atoi (year_s) - 1900;


      /* time */

      fields = g_strsplit (time_s, ":", 3);
      if (fields[0] != NULL) {
            tm.tm_hour = atoi (fields[0]) - 1;
            if (fields[1] != NULL) {
                  tm.tm_min  = atoi (fields[1]);
                  if (fields[2] != NULL)
                        tm.tm_sec  = atoi (fields[2]);
            }
      }
      g_strfreev (fields);

      return mktime (&tm);
}


static char*
ar_get_last_field (const char *line,
               int         start_from,
               int         field_n)
{
      const char *f_start, *f_end;
      
      line = line + start_from;
        
      f_start = line;
      while ((*f_start == ' ') && (*f_start != *line))
            f_start++;
      f_end = f_start;

      while ((field_n > 0) && (*f_end != 0)) {
            if (*f_end == ' ') {
                  field_n--;
                  if (field_n != 0) {
                        while ((*f_end == ' ') && (*f_end != *line))
                              f_end++;
                        f_start = f_end;
                  }
            } else
                  f_end++;
      }
      
      return g_strdup (f_start);
}


static void
process_line (char     *line, 
            gpointer  data)
{
      FileData    *fdata;
      FRCommand   *comm = FR_COMMAND (data);
      char       **fields;
      int          date_idx;
      char        *field_month, *field_day, *field_time, *field_year;
      char        *field_size, *field_name;

      g_return_if_fail (line != NULL);

      fdata = file_data_new ();

      date_idx = file_list__get_index_from_pattern (line, "%c%c%c %a%n %n%n:%n%n %n%n%n%n");

      field_size = file_list__get_prev_field (line, date_idx, 1);
      fdata->size = g_ascii_strtoull (field_size, NULL, 10);
      g_free (field_size);

      field_month = file_list__get_next_field (line, date_idx, 1);
      field_day = file_list__get_next_field (line, date_idx, 2);
      field_time = file_list__get_next_field (line, date_idx, 3);
      field_year = file_list__get_next_field (line, date_idx, 4);
      fdata->modified = mktime_from_string (field_time, field_day, field_month, field_year);
      g_free (field_day);
      g_free (field_month);
      g_free (field_year);
      g_free (field_time);

      /* Full path */

      field_name = ar_get_last_field (line, date_idx, 5);

      fields = g_strsplit (field_name, " -> ", 2);

      if (fields[0] == NULL) {
            g_strfreev (fields);
            g_free (field_name);
            file_data_free (fdata);
            return;
      }

      if (fields[1] == NULL) {
            g_strfreev (fields);
            fields = g_strsplit (field_name, " link to ", 2);
      }

      if (*(fields[0]) == '/') {
            fdata->full_path = g_strdup (fields[0]);
            fdata->original_path = fdata->full_path;
      } else {
            fdata->full_path = g_strconcat ("/", fields[0], NULL);
            fdata->original_path = fdata->full_path + 1;
      }

      if (fields[1] != NULL)
            fdata->link = g_strdup (fields[1]);
      g_strfreev (fields);
      g_free (field_name);

      fdata->name = g_strdup (file_name_from_path (fdata->full_path));
      fdata->path = remove_level_from_path (fdata->full_path);
      fdata->type = gnome_vfs_mime_type_from_name_or_default (fdata->name, GNOME_VFS_MIME_TYPE_UNKNOWN);

      if (*fdata->name == 0)
            file_data_free (fdata);
      else 
            comm->file_list = g_list_prepend (comm->file_list, fdata);
}


static void
fr_command_ar_list (FRCommand *comm)
{
      fr_process_set_out_line_func (FR_COMMAND (comm)->process, 
                              process_line,
                              comm);

      fr_process_begin_command (comm->process, "ar");
      fr_process_add_arg (comm->process, "tv");
      fr_process_add_arg (comm->process, comm->e_filename);
      fr_process_end_command (comm->process);
      fr_process_start (comm->process);
}


static void
fr_command_ar_add (FRCommand     *comm,
               GList         *file_list,
               const char    *base_dir,
               gboolean       update,
               const char    *password,
               FRCompression  compression)
{
      GList *scan;

      fr_process_begin_command (comm->process, "ar");

      if (update)
            fr_process_add_arg (comm->process, "ru");
      else
            fr_process_add_arg (comm->process, "r");

      if (base_dir != NULL) 
            fr_process_set_working_dir (comm->process, base_dir);

      fr_process_add_arg (comm->process, comm->e_filename);

      for (scan = file_list; scan; scan = scan->next) 
            fr_process_add_arg (comm->process, (gchar*) scan->data);

      fr_process_end_command (comm->process);
}


static void
fr_command_ar_delete (FRCommand *comm,
                  GList     *file_list)
{
      GList *scan;

      fr_process_begin_command (comm->process, "ar");
      fr_process_add_arg (comm->process, "d");

      fr_process_add_arg (comm->process, comm->e_filename);

      for (scan = file_list; scan; scan = scan->next)
            fr_process_add_arg (comm->process, scan->data);
      fr_process_end_command (comm->process);
}


static void
fr_command_ar_extract (FRCommand  *comm,
                   GList      *file_list,
                   const char *dest_dir,
                   gboolean    overwrite,
                   gboolean    skip_older,
                   gboolean    junk_paths,
                   const char *password)
{
      GList *scan;

      fr_process_begin_command (comm->process, "ar");

      if (dest_dir != NULL) 
            fr_process_set_working_dir (comm->process, dest_dir);

      fr_process_add_arg (comm->process, "x");
      fr_process_add_arg (comm->process, comm->e_filename);

      for (scan = file_list; scan; scan = scan->next)
            fr_process_add_arg (comm->process, scan->data);

      fr_process_end_command (comm->process);
}


static void
fr_command_ar_handle_error (FRCommand   *comm, 
                      FRProcError *error)
{
      /* FIXME */
}


static void 
fr_command_ar_class_init (FRCommandArClass *class)
{
        GObjectClass   *gobject_class = G_OBJECT_CLASS (class);
        FRCommandClass *afc;

        parent_class = g_type_class_peek_parent (class);
      afc = (FRCommandClass*) class;

      gobject_class->finalize = fr_command_ar_finalize;

        afc->list           = fr_command_ar_list;
      afc->add            = fr_command_ar_add;
      afc->delete         = fr_command_ar_delete;
      afc->extract        = fr_command_ar_extract;
      afc->handle_error   = fr_command_ar_handle_error;
}

 
static void 
fr_command_ar_init (FRCommand *comm)
{
      comm->file_type = FR_FILE_TYPE_AR;

      comm->propCanModify                = TRUE;
      comm->propAddCanUpdate             = TRUE;
      comm->propAddCanReplace            = TRUE;
      comm->propExtractCanAvoidOverwrite = FALSE;
      comm->propExtractCanSkipOlder      = FALSE;
      comm->propExtractCanJunkPaths      = FALSE;
      comm->propPassword                 = FALSE;
      comm->propTest                     = FALSE;
}


static void 
fr_command_ar_finalize (GObject *object)
{
        g_return_if_fail (object != NULL);
        g_return_if_fail (FR_IS_COMMAND_AR (object));
      
      /* Chain up */
        if (G_OBJECT_CLASS (parent_class)->finalize)
            G_OBJECT_CLASS (parent_class)->finalize (object);
}


GType
fr_command_ar_get_type ()
{
        static GType type = 0;

        if (! type) {
                GTypeInfo type_info = {
                  sizeof (FRCommandArClass),
                  NULL,
                  NULL,
                  (GClassInitFunc) fr_command_ar_class_init,
                  NULL,
                  NULL,
                  sizeof (FRCommandAr),
                  0,
                  (GInstanceInitFunc) fr_command_ar_init
            };

            type = g_type_register_static (FR_TYPE_COMMAND,
                                     "FRCommandAr",
                                     &type_info,
                                     0);
        }

        return type;
}


FRCommand *
fr_command_ar_new (FRProcess  *process,
               const char *filename)
{
      FRCommand *comm;

      if(! is_program_in_path ("ar")) 
            return NULL;
      
      comm = FR_COMMAND (g_object_new (FR_TYPE_COMMAND_AR, NULL));
      fr_command_construct (comm, process, filename);
      
      return comm;
}

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