updateiconcache.c 38 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
/* updateiconcache.c
 * Copyright (C) 2004  Anders Carlsson <andersca@gnome.org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

20
#include "config.h"
Manish Singh's avatar
Manish Singh committed
21

Matthias Clasen's avatar
Matthias Clasen committed
22
#include <locale.h>
23 24 25 26 27
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
28
#include <fcntl.h>
Ivan, Wong Yat Cheung's avatar
Ivan, Wong Yat Cheung committed
29
#ifdef HAVE_UNISTD_H
30
#include <unistd.h>
Ivan, Wong Yat Cheung's avatar
Ivan, Wong Yat Cheung committed
31
#endif
32
#include <errno.h>
Ivan, Wong Yat Cheung's avatar
Ivan, Wong Yat Cheung committed
33
#ifdef _MSC_VER
34
#include <io.h>
Ivan, Wong Yat Cheung's avatar
Ivan, Wong Yat Cheung committed
35 36
#include <sys/utime.h>
#else
37
#include <utime.h>
Ivan, Wong Yat Cheung's avatar
Ivan, Wong Yat Cheung committed
38
#endif
39 40

#include <glib.h>
41
#include <glib/gstdio.h>
Anders Carlsson's avatar
Anders Carlsson committed
42
#include <gdk-pixbuf/gdk-pixdata.h>
43
#include <glib/gi18n.h>
44
#include "gtkiconcachevalidator.h"
45

Matthias Clasen's avatar
Matthias Clasen committed
46
static gboolean force_update = FALSE;
47
static gboolean ignore_theme_index = FALSE;
Matthias Clasen's avatar
Matthias Clasen committed
48
static gboolean quiet = FALSE;
49
static gboolean index_only = FALSE;
50
static gboolean validate = FALSE;
51
static gchar *var_name = "-";
Matthias Clasen's avatar
Matthias Clasen committed
52

53 54 55 56 57
/* Quite ugly - if we just add the c file to the
 * list of sources in Makefile.am, libtool complains.
 */
#include "gtkiconcachevalidator.c"

58 59 60 61 62 63 64 65 66 67 68 69 70 71
#define CACHE_NAME "icon-theme.cache"

#define HAS_SUFFIX_XPM (1 << 0)
#define HAS_SUFFIX_SVG (1 << 1)
#define HAS_SUFFIX_PNG (1 << 2)
#define HAS_ICON_FILE  (1 << 3)

#define MAJOR_VERSION 1
#define MINOR_VERSION 0
#define HASH_OFFSET 12

#define ALIGN_VALUE(this, boundary) \
  (( ((unsigned long)(this)) + (((unsigned long)(boundary)) -1)) & (~(((unsigned long)(boundary))-1)))

72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118
#ifdef HAVE_FTW_H

#include <ftw.h>

static struct stat cache_stat;
static gboolean cache_up_to_date;

static int check_dir_mtime (const char        *dir, 
                            const struct stat *sb,
                            int                tf)
{
  if (tf != FTW_NS && sb->st_mtime > cache_stat.st_mtime)
    {
      cache_up_to_date = FALSE;
      /* stop tree walk */
      return 1;
    }

  return 0;
}

 gboolean
 is_cache_up_to_date (const gchar *path)
 {
  gchar *cache_path;
  gint retval;

  cache_path = g_build_filename (path, CACHE_NAME, NULL);
  retval = g_stat (cache_path, &cache_stat);
  g_free (cache_path);
  
  if (retval < 0)
    {
      /* Cache file not found */
      return FALSE;
    }

  cache_up_to_date = TRUE;

  ftw (path, check_dir_mtime, 20);

  return cache_up_to_date;
}

#else  /* !HAVE_FTW_H */

gboolean
119 120 121 122
is_cache_up_to_date (const gchar *path)
{
  struct stat path_stat, cache_stat;
  gchar *cache_path;
123
  int retval; 
124
  
125
  retval = g_stat (path, &path_stat);
126

127
  if (retval < 0) 
128 129 130 131 132 133 134
    {
      /* We can't stat the path,
       * assume we have a updated cache */
      return TRUE;
    }

  cache_path = g_build_filename (path, CACHE_NAME, NULL);
135
  retval = g_stat (cache_path, &cache_stat);
136 137
  g_free (cache_path);
  
138
  if (retval < 0)
139 140 141 142 143 144
    {
      /* Cache file not found */
      return FALSE;
    }

  /* Check mtime */
145
  return cache_stat.st_mtime >= path_stat.st_mtime;
146 147
}

148 149
#endif  /* !HAVE_FTW_H */

150
static gboolean
151 152 153 154 155 156 157 158 159 160 161 162 163 164 165
has_theme_index (const gchar *path)
{
  gboolean result;
  gchar *index_path;

  index_path = g_build_filename (path, "index.theme", NULL);

  result = g_file_test (index_path, G_FILE_TEST_IS_REGULAR);
  
  g_free (index_path);

  return result;
}


166 167 168
typedef struct 
{
  GdkPixdata pixdata;
169
  gboolean has_pixdata;
170
  guint32 offset;
171
  guint size;
172 173
} ImageData;

174 175 176 177 178 179 180 181 182 183 184 185 186 187 188
typedef struct 
{
  int has_embedded_rect;
  int x0, y0, x1, y1;
  
  int n_attach_points;
  int *attach_points;
  
  int n_display_names;
  char **display_names;

  guint32 offset;
  gint size;
} IconData;

189
static GHashTable *image_data_hash = NULL;
190
static GHashTable *icon_data_hash = NULL;
191

192 193 194 195
typedef struct
{
  int flags;
  int dir_index;
Anders Carlsson's avatar
Anders Carlsson committed
196

197 198
  ImageData *image_data;
  guint pixel_data_size;
Anders Carlsson's avatar
Anders Carlsson committed
199

200 201
  IconData *icon_data;
  guint icon_data_size;
202 203
} Image;

204

205 206 207
static gboolean
foreach_remove_func (gpointer key, gpointer value, gpointer user_data)
{
208
  Image *image = (Image *)value;
209 210
  GHashTable *files = user_data;
  GList *list;
211 212 213 214
  gboolean free_key = FALSE;  

  if (image->flags == HAS_ICON_FILE)
    {
215
      /* just a .icon file, throw away */
216
      g_free (key);
217
      g_free (image);
218 219 220 221

      return TRUE;
    }

222 223 224 225 226 227 228 229 230 231 232 233 234
  list = g_hash_table_lookup (files, key);
  if (list)
    free_key = TRUE;
  
  list = g_list_prepend (list, value);
  g_hash_table_insert (files, key, list);
  
  if (free_key)
    g_free (key);
  
  return TRUE;
}

235 236
static IconData *
load_icon_data (const char *path)
Anders Carlsson's avatar
Anders Carlsson committed
237 238 239 240 241 242 243 244 245 246 247
{
  GKeyFile *icon_file;
  char **split;
  gsize length;
  char *str;
  char *split_point;
  int i;
  gint *ivalues;
  GError *error = NULL;
  gchar **keys;
  gsize n_keys;
248
  IconData *data;
Anders Carlsson's avatar
Anders Carlsson committed
249 250 251 252 253 254 255
  
  icon_file = g_key_file_new ();
  g_key_file_set_list_separator (icon_file, ',');
  g_key_file_load_from_file (icon_file, path, G_KEY_FILE_KEEP_TRANSLATIONS, &error);
  if (error)
    {
      g_error_free (error);
256 257 258
      g_key_file_free (icon_file);

      return NULL;
Anders Carlsson's avatar
Anders Carlsson committed
259 260
    }

261 262
  data = g_new0 (IconData, 1);

Anders Carlsson's avatar
Anders Carlsson committed
263 264 265 266 267 268 269
  ivalues = g_key_file_get_integer_list (icon_file, 
					 "Icon Data", "EmbeddedTextRectangle",
					 &length, NULL);
  if (ivalues)
    {
      if (length == 4)
	{
270 271 272 273 274
	  data->has_embedded_rect = TRUE;
	  data->x0 = ivalues[0];
	  data->y0 = ivalues[1];
	  data->x1 = ivalues[2];
	  data->y1 = ivalues[3];
Anders Carlsson's avatar
Anders Carlsson committed
275 276 277 278 279 280 281 282 283 284
	}
      
      g_free (ivalues);
    }
      
  str = g_key_file_get_string (icon_file, "Icon Data", "AttachPoints", NULL);
  if (str)
    {
      split = g_strsplit (str, "|", -1);
      
285 286
      data->n_attach_points = g_strv_length (split);
      data->attach_points = g_new (int, 2 * data->n_attach_points);
Anders Carlsson's avatar
Anders Carlsson committed
287 288

      i = 0;
289
      while (split[i] != NULL && i < data->n_attach_points)
Anders Carlsson's avatar
Anders Carlsson committed
290 291 292 293 294 295
	{
	  split_point = strchr (split[i], ',');
	  if (split_point)
	    {
	      *split_point = 0;
	      split_point++;
296 297
	      data->attach_points[2 * i] = atoi (split[i]);
	      data->attach_points[2 * i + 1] = atoi (split_point);
Anders Carlsson's avatar
Anders Carlsson committed
298 299 300 301 302 303 304 305 306
	    }
	  i++;
	}
      
      g_strfreev (split);
      g_free (str);
    }
      
  keys = g_key_file_get_keys (icon_file, "Icon Data", &n_keys, &error);
307 308
  data->display_names = g_new0 (gchar *, 2 * n_keys + 1); 
  data->n_display_names = 0;
Anders Carlsson's avatar
Anders Carlsson committed
309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337
  
  for (i = 0; i < n_keys; i++)
    {
      gchar *lang, *name;
      
      if (g_str_has_prefix (keys[i], "DisplayName"))
	{
	  gchar *open, *close = NULL;
	  
	  open = strchr (keys[i], '[');

	  if (open)
	    close = strchr (open, ']');

	  if (open && close)
	    {
	      lang = g_strndup (open + 1, close - open - 1);
	      name = g_key_file_get_locale_string (icon_file, 
						   "Icon Data", "DisplayName",
						   lang, NULL);
	    }
	  else
	    {
	      lang = g_strdup ("C");
	      name = g_key_file_get_string (icon_file, 
					    "Icon Data", "DisplayName",
					    NULL);
	    }
	  
338 339 340
	  data->display_names[2 * data->n_display_names] = lang;
	  data->display_names[2 * data->n_display_names + 1] = name;
	  data->n_display_names++;
Anders Carlsson's avatar
Anders Carlsson committed
341 342 343 344 345 346
	}
    }

  g_strfreev (keys);
  
  g_key_file_free (icon_file);
347 348 349 350 351 352 353 354

  /* -1 means not computed yet, the real value depends
   * on string pool state, and will be computed 
   * later 
   */
  data->size = -1;

  return data;
Anders Carlsson's avatar
Anders Carlsson committed
355 356
}

357 358 359 360
/*
 * This function was copied from gtkfilesystemunix.c, it should
 * probably go to GLib
 */
Anders Carlsson's avatar
Anders Carlsson committed
361
static void
362
canonicalize_filename (gchar *filename)
Anders Carlsson's avatar
Anders Carlsson committed
363
{
364 365 366 367 368 369 370
  gchar *p, *q;
  gboolean last_was_slash = FALSE;

  p = filename;
  q = filename;

  while (*p)
Anders Carlsson's avatar
Anders Carlsson committed
371
    {
372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440
      if (*p == G_DIR_SEPARATOR)
	{
	  if (!last_was_slash)
	    *q++ = G_DIR_SEPARATOR;

	  last_was_slash = TRUE;
	}
      else
	{
	  if (last_was_slash && *p == '.')
	    {
	      if (*(p + 1) == G_DIR_SEPARATOR ||
		  *(p + 1) == '\0')
		{
		  if (*(p + 1) == '\0')
		    break;

		  p += 1;
		}
	      else if (*(p + 1) == '.' &&
		       (*(p + 2) == G_DIR_SEPARATOR ||
			*(p + 2) == '\0'))
		{
		  if (q > filename + 1)
		    {
		      q--;
		      while (q > filename + 1 &&
			     *(q - 1) != G_DIR_SEPARATOR)
			q--;
		    }

		  if (*(p + 2) == '\0')
		    break;

		  p += 2;
		}
	      else
		{
		  *q++ = *p;
		  last_was_slash = FALSE;
		}
	    }
	  else
	    {
	      *q++ = *p;
	      last_was_slash = FALSE;
	    }
	}

      p++;
    }

  if (q > filename + 1 && *(q - 1) == G_DIR_SEPARATOR)
    q--;

  *q = '\0';
}

static gchar *
follow_links (const gchar *path)
{
  gchar *target;
  gchar *d, *s;
  gchar *path2 = NULL;

  path2 = g_strdup (path);
  while (g_file_test (path2, G_FILE_TEST_IS_SYMLINK))
    {
      target = g_file_read_link (path2, NULL);
Anders Carlsson's avatar
Anders Carlsson committed
441
      
442 443
      if (target)
	{
444 445
	  if (g_path_is_absolute (target))
	    path2 = target;
446 447
	  else
	    {
448 449 450
	      d = g_path_get_dirname (path2);
	      s = g_build_filename (d, target, NULL);
	      g_free (d);
451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472
	      g_free (target);
	      g_free (path2);
	      path2 = s;
	    }
	}
      else
	break;
    }

  if (strcmp (path, path2) == 0)
    {
      g_free (path2);
      path2 = NULL;
    }

  return path2;
}

static void
maybe_cache_image_data (Image       *image, 
			const gchar *path)
{
473 474
  if (!index_only && !image->image_data && 
      (g_str_has_suffix (path, ".png") || g_str_has_suffix (path, ".xpm")))
475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491
    {
      GdkPixbuf *pixbuf;
      ImageData *idata;
      gchar *path2;

      idata = g_hash_table_lookup (image_data_hash, path);
      path2 = follow_links (path);

      if (path2)
	{
	  ImageData *idata2;

	  canonicalize_filename (path2);
  
	  idata2 = g_hash_table_lookup (image_data_hash, path2);

	  if (idata && idata2 && idata != idata2)
492
	    g_error (_("different idatas found for symlinked '%s' and '%s'\n"),
493 494 495 496 497 498 499 500 501 502 503
		     path, path2);

	  if (idata && !idata2)
	    g_hash_table_insert (image_data_hash, g_strdup (path2), idata);

	  if (!idata && idata2)
	    {
	      g_hash_table_insert (image_data_hash, g_strdup (path), idata2);
	      idata = idata2;
	    }
	}
Anders Carlsson's avatar
Anders Carlsson committed
504
      
505 506 507 508 509 510 511 512 513
      if (!idata)
	{
	  idata = g_new0 (ImageData, 1);
	  g_hash_table_insert (image_data_hash, g_strdup (path), idata);
	  if (path2)
	    g_hash_table_insert (image_data_hash, g_strdup (path2), idata);  
	}

      if (!idata->has_pixdata)
Anders Carlsson's avatar
Anders Carlsson committed
514
	{
515 516 517 518 519
	  pixbuf = gdk_pixbuf_new_from_file (path, NULL);
	  
	  if (pixbuf) 
	    {
	      gdk_pixdata_from_pixbuf (&idata->pixdata, pixbuf, FALSE);
520
	      idata->size = idata->pixdata.length + 8;
521 522
	      idata->has_pixdata = TRUE;
	    }
Anders Carlsson's avatar
Anders Carlsson committed
523
	}
524 525 526

      image->image_data = idata;

527
      g_free (path2);
Anders Carlsson's avatar
Anders Carlsson committed
528 529 530
    }
}

531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574
static void
maybe_cache_icon_data (Image       *image,
                       const gchar *path)
{
  if (g_str_has_suffix (path, ".icon"))
    {
      IconData *idata = NULL;
      gchar *path2 = NULL;

      idata = g_hash_table_lookup (icon_data_hash, path);
      path2 = follow_links (path);

      if (path2)
	{
	  IconData *idata2;

	  canonicalize_filename (path2);
  
	  idata2 = g_hash_table_lookup (icon_data_hash, path2);

	  if (idata && idata2 && idata != idata2)
	    g_error (_("different idatas found for symlinked '%s' and '%s'\n"),
		     path, path2);

	  if (idata && !idata2)
	    g_hash_table_insert (icon_data_hash, g_strdup (path2), idata);

	  if (!idata && idata2)
	    {
	      g_hash_table_insert (icon_data_hash, g_strdup (path), idata2);
	      idata = idata2;
	    }
	}
      
      if (!idata)
	{
	  idata = load_icon_data (path);
	  g_hash_table_insert (icon_data_hash, g_strdup (path), idata);
	  if (path2)
	    g_hash_table_insert (icon_data_hash, g_strdup (path2), idata);  
        }

      image->icon_data = idata;

575
      g_free (path2);
576 577 578
    }
}

579
static GList *
580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627
scan_directory (const gchar *base_path, 
		const gchar *subdir, 
		GHashTable  *files, 
		GList       *directories,
		gint         depth)
{
  GHashTable *dir_hash;
  GDir *dir;
  const gchar *name;
  gchar *dir_path;
  gboolean dir_added = FALSE;
  guint dir_index = 0xffff;
  
  dir_path = g_build_filename (base_path, subdir, NULL);

  /* FIXME: Use the gerror */
  dir = g_dir_open (dir_path, 0, NULL);
  
  if (!dir)
    return directories;
  
  dir_hash = g_hash_table_new (g_str_hash, g_str_equal);

  while ((name = g_dir_read_name (dir)))
    {
      gchar *path;
      gboolean retval;
      int flags = 0;
      Image *image;
      gchar *basename, *dot;

      path = g_build_filename (dir_path, name, NULL);
      retval = g_file_test (path, G_FILE_TEST_IS_DIR);
      if (retval)
	{
	  gchar *subsubdir;

	  if (subdir)
	    subsubdir = g_build_filename (subdir, name, NULL);
	  else
	    subsubdir = g_strdup (name);
	  directories = scan_directory (base_path, subsubdir, files, 
					directories, depth + 1);
	  g_free (subsubdir);

	  continue;
	}

628 629 630 631
      /* ignore images in the toplevel directory */
      if (subdir == NULL)
        continue;

632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651
      retval = g_file_test (path, G_FILE_TEST_IS_REGULAR);
      if (retval)
	{
	  if (g_str_has_suffix (name, ".png"))
	    flags |= HAS_SUFFIX_PNG;
	  else if (g_str_has_suffix (name, ".svg"))
	    flags |= HAS_SUFFIX_SVG;
	  else if (g_str_has_suffix (name, ".xpm"))
	    flags |= HAS_SUFFIX_XPM;
	  else if (g_str_has_suffix (name, ".icon"))
	    flags |= HAS_ICON_FILE;
	  
	  if (flags == 0)
	    continue;
	  
	  basename = g_strdup (name);
	  dot = strrchr (basename, '.');
	  *dot = '\0';
	  
	  image = g_hash_table_lookup (dir_hash, basename);
652
	  if (!image)
653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670
	    {
	      if (!dir_added) 
		{
		  dir_added = TRUE;
		  if (subdir)
		    {
		      dir_index = g_list_length (directories);
		      directories = g_list_append (directories, g_strdup (subdir));
		    }
		  else
		    dir_index = 0xffff;
		}
		
	      image = g_new0 (Image, 1);
	      image->dir_index = dir_index;
	      g_hash_table_insert (dir_hash, g_strdup (basename), image);
	    }

671 672 673 674 675
	  image->flags |= flags;
      
	  maybe_cache_image_data (image, path);
          maybe_cache_icon_data (image, path);
       
676 677
	  g_free (basename);
	}
Anders Carlsson's avatar
Anders Carlsson committed
678 679

      g_free (path);
680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698
    }

  g_dir_close (dir);

  /* Move dir into the big file hash */
  g_hash_table_foreach_remove (dir_hash, foreach_remove_func, files);
  
  g_hash_table_destroy (dir_hash);

  return directories;
}

typedef struct _HashNode HashNode;

struct _HashNode
{
  HashNode *next;
  gchar *name;
  GList *image_list;
699
  gint offset;
700 701 702 703 704
};

static guint
icon_name_hash (gconstpointer key)
{
705 706
  const signed char *p = key;
  guint32 h = *p;
707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741

  if (h)
    for (p += 1; *p != '\0'; p++)
      h = (h << 5) - h + *p;

  return h;
}

typedef struct {
  gint size;
  HashNode **nodes;
} HashContext;

static gboolean
convert_to_hash (gpointer key, gpointer value, gpointer user_data)
{
  HashContext *context = user_data;
  guint hash;
  HashNode *node;
  
  hash = icon_name_hash (key) % context->size;

  node = g_new0 (HashNode, 1);
  node->next = NULL;
  node->name = key;
  node->image_list = value;

  if (context->nodes[hash] != NULL)
    node->next = context->nodes[hash];

  context->nodes[hash] = node;
  
  return TRUE;
}

742 743 744 745 746 747 748 749 750 751 752
static GHashTable *string_pool = NULL;
 
static int
find_string (const gchar *n)
{
  return GPOINTER_TO_INT (g_hash_table_lookup (string_pool, n));
}

static void
add_string (const gchar *n, int offset)
{
753
  g_hash_table_insert (string_pool, (gpointer) n, GINT_TO_POINTER (offset));
754 755
}

756
static gboolean
757 758 759 760 761 762 763 764 765 766 767 768
write_string (FILE *cache, const gchar *n)
{
  gchar *s;
  int i, l;
  
  l = ALIGN_VALUE (strlen (n) + 1, 4);
  
  s = g_malloc0 (l);
  strcpy (s, n);

  i = fwrite (s, l, 1, cache);

769 770
  g_free (s);

771 772 773 774
  return i == 1;
  
}

775
static gboolean
776 777 778 779
write_card16 (FILE *cache, guint16 n)
{
  int i;

780
  n = GUINT16_TO_BE (n);
781
  
782
  i = fwrite ((char *)&n, 2, 1, cache);
783 784 785 786

  return i == 1;
}

787
static gboolean
788 789 790 791
write_card32 (FILE *cache, guint32 n)
{
  int i;

792
  n = GUINT32_TO_BE (n);
793
  
794
  i = fwrite ((char *)&n, 4, 1, cache);
795 796 797 798

  return i == 1;
}

Anders Carlsson's avatar
Anders Carlsson committed
799

800
static gboolean
801
write_image_data (FILE *cache, ImageData *image_data, int offset)
Anders Carlsson's avatar
Anders Carlsson committed
802 803
{
  guint8 *s;
804 805
  guint len;
  gint i;
806
  GdkPixdata *pixdata = &image_data->pixdata;
Anders Carlsson's avatar
Anders Carlsson committed
807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826

  /* Type 0 is GdkPixdata */
  if (!write_card32 (cache, 0))
    return FALSE;

  s = gdk_pixdata_serialize (pixdata, &len);

  if (!write_card32 (cache, len))
    {
      g_free (s);
      return FALSE;
    }

  i = fwrite (s, len, 1, cache);
  
  g_free (s);

  return i == 1;
}

827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941
static gboolean
write_icon_data (FILE *cache, IconData *icon_data, int offset)
{
  int ofs = offset + 12;
  int j;
  int tmp, tmp2;

  if (icon_data->has_embedded_rect)
    {
      if (!write_card32 (cache, ofs))
        return FALSE;
	      
       ofs += 8;
    }	      
  else
    {
      if (!write_card32 (cache, 0))
        return FALSE;
    }
	      
  if (icon_data->n_attach_points > 0)
    {
      if (!write_card32 (cache, ofs))
        return FALSE;

      ofs += 4 + 4 * icon_data->n_attach_points;
    }
  else
    {
      if (!write_card32 (cache, 0))
        return FALSE;
    }

  if (icon_data->n_display_names > 0)
    {
      if (!write_card32 (cache, ofs))
	return FALSE;
    }
  else
    {
      if (!write_card32 (cache, 0))
        return FALSE;
    }

  if (icon_data->has_embedded_rect)
    {
      if (!write_card16 (cache, icon_data->x0) ||
          !write_card16 (cache, icon_data->y0) ||
	  !write_card16 (cache, icon_data->x1) ||
	  !write_card16 (cache, icon_data->y1))
        return FALSE;
    }

  if (icon_data->n_attach_points > 0)
    {
      if (!write_card32 (cache, icon_data->n_attach_points))
        return FALSE;
		  
      for (j = 0; j < 2 * icon_data->n_attach_points; j++)
        {
          if (!write_card16 (cache, icon_data->attach_points[j]))
            return FALSE;
        }		  
    }

  if (icon_data->n_display_names > 0)
    {
      if (!write_card32 (cache, icon_data->n_display_names))
        return FALSE;

      ofs += 4 + 8 * icon_data->n_display_names;

      tmp = ofs;
      for (j = 0; j < 2 * icon_data->n_display_names; j++)
        {
          tmp2 = find_string (icon_data->display_names[j]);
          if (tmp2 == 0 || tmp2 == -1)
            {
              tmp2 = tmp;
              tmp += ALIGN_VALUE (strlen (icon_data->display_names[j]) + 1, 4);
              /* We're playing a little game with negative
               * offsets here to handle duplicate strings in 
               * the array.
               */
              add_string (icon_data->display_names[j], -tmp2);
            }
          else if (tmp2 < 0)
            {
              tmp2 = -tmp2;
            }

          if (!write_card32 (cache, tmp2))
            return FALSE;

        }

      g_assert (ofs == ftell (cache));
      for (j = 0; j < 2 * icon_data->n_display_names; j++)
        {
          tmp2 = find_string (icon_data->display_names[j]);
          g_assert (tmp2 != 0 && tmp2 != -1);
          if (tmp2 < 0)
            {
              tmp2 = -tmp2;
              g_assert (tmp2 == ftell (cache));
              add_string (icon_data->display_names[j], tmp2);
              if (!write_string (cache, icon_data->display_names[j]))
                return FALSE;
            }
        }
    }	     

  return TRUE;
}

942 943 944 945 946 947 948 949 950
static gboolean
write_header (FILE *cache, guint32 dir_list_offset)
{
  return (write_card16 (cache, MAJOR_VERSION) &&
	  write_card16 (cache, MINOR_VERSION) &&
	  write_card32 (cache, HASH_OFFSET) &&
	  write_card32 (cache, dir_list_offset));
}

951
static gint
Anders Carlsson's avatar
Anders Carlsson committed
952 953 954 955
get_image_meta_data_size (Image *image)
{
  gint i;

956 957 958 959 960 961 962 963
  /* The complication with storing the size in both
   * IconData and Image is necessary since we attribute
   * the size of the IconData only to the first Image
   * using it (at which time it is written out in the 
   * cache). Later Images just refer to the written out
   * IconData via the offset.
   */
  if (image->icon_data_size == 0)
Anders Carlsson's avatar
Anders Carlsson committed
964
    {
965 966 967 968 969 970 971
      if (image->icon_data && image->icon_data->size < 0)
	{
          IconData *data = image->icon_data;

          data->size = 0;

          if (data->has_embedded_rect ||
972
              data->n_attach_points > 0 ||
973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005
              data->n_display_names > 0)
            data->size += 12;

          if (data->has_embedded_rect)
            data->size += 8;

          if (data->n_attach_points > 0)
            data->size += 4 + data->n_attach_points * 4;

          if (data->n_display_names > 0)
            {
              data->size += 4 + 8 * data->n_display_names;

              for (i = 0; data->display_names[i]; i++)
                { 
                  int poolv;
                  if ((poolv = find_string (data->display_names[i])) == 0)
                    {
                      data->size += ALIGN_VALUE (strlen (data->display_names[i]) + 1, 4);
                      /* Adding the string to the pool with -1
                       * to indicate that it hasn't been written out
                       * to the cache yet. We still need it in the
                       * pool in case the same string occurs twice
                       * during a get_single_node_size() calculation.
                       */
                      add_string (data->display_names[i], -1);
                    }
                }
           } 

	  image->icon_data_size = data->size;
	  data->size = 0;
	}
Anders Carlsson's avatar
Anders Carlsson committed
1006 1007
    }

1008 1009 1010
  g_assert (image->icon_data_size % 4 == 0);

  return image->icon_data_size;
Anders Carlsson's avatar
Anders Carlsson committed
1011 1012
}

1013
static gint
Anders Carlsson's avatar
Anders Carlsson committed
1014 1015
get_image_pixel_data_size (Image *image)
{
1016 1017 1018 1019 1020 1021 1022
  /* The complication with storing the size in both
   * ImageData and Image is necessary since we attribute
   * the size of the ImageData only to the first Image
   * using it (at which time it is written out in the 
   * cache). Later Images just refer to the written out
   * ImageData via the offset.
   */
1023 1024 1025 1026 1027
  if (image->pixel_data_size == 0)
    {
      if (image->image_data && 
	  image->image_data->has_pixdata)
	{
1028 1029
	  image->pixel_data_size = image->image_data->size;
	  image->image_data->size = 0;
1030 1031
	}
    }
Anders Carlsson's avatar
Anders Carlsson committed
1032

1033 1034
  g_assert (image->pixel_data_size % 4 == 0);

1035
  return image->pixel_data_size;
Anders Carlsson's avatar
Anders Carlsson committed
1036
}
1037

1038
static gint
Anders Carlsson's avatar
Anders Carlsson committed
1039 1040
get_image_data_size (Image *image)
{
1041
  gint len;
Anders Carlsson's avatar
Anders Carlsson committed
1042 1043 1044 1045 1046
  
  len = 0;

  len += get_image_pixel_data_size (image);
  len += get_image_meta_data_size (image);
1047 1048 1049 1050 1051 1052 1053

  /* Even if len is zero, we need to reserve space to
   * write the ImageData, unless this is an .svg without 
   * .icon, in which case both image_data and icon_data
   * are NULL.
   */
  if (len > 0 || image->image_data || image->icon_data)
Anders Carlsson's avatar
Anders Carlsson committed
1054 1055 1056 1057 1058
    len += 8;

  return len;
}

1059 1060
static void
get_single_node_size (HashNode *node, int *node_size, int *image_data_size)
1061
{
Anders Carlsson's avatar
Anders Carlsson committed
1062
  GList *list;
1063 1064

  /* Node pointers */
1065
  *node_size = 12;
1066 1067

  /* Name */
1068 1069 1070 1071 1072
  if (find_string (node->name) == 0)
    {
      *node_size += ALIGN_VALUE (strlen (node->name) + 1, 4);
      add_string (node->name, -1);
    }
1073 1074

  /* Image list */
1075
  *node_size += 4 + g_list_length (node->image_list) * 8;
Anders Carlsson's avatar
Anders Carlsson committed
1076 1077
 
  /* Image data */
1078 1079
  *image_data_size = 0;
  for (list = node->image_list; list; list = list->next)
1080
    {
1081
      Image *image = list->data;
1082

1083
      *image_data_size += get_image_data_size (image);
1084 1085 1086
    }
}

1087
static gboolean
1088 1089 1090 1091
write_bucket (FILE *cache, HashNode *node, int *offset)
{
  while (node != NULL)
    {
1092 1093
      int node_size, image_data_size;
      int next_offset, image_data_offset;
Anders Carlsson's avatar
Anders Carlsson committed
1094
      int data_offset;
1095 1096 1097
      int name_offset;
      int name_size;
      int image_list_offset;
Anders Carlsson's avatar
Anders Carlsson committed
1098
      int tmp;
1099
      int i, len;
1100
      GList *list;
1101 1102 1103 1104

      g_assert (*offset == ftell (cache));

      node->offset = *offset;
1105
	  
1106 1107 1108 1109 1110
      get_single_node_size (node, &node_size, &image_data_size);
      g_assert (node_size % 4 == 0);
      g_assert (image_data_size % 4 == 0);
      image_data_offset = *offset + node_size;
      next_offset = *offset + node_size + image_data_size;
1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122
      /* Chain offset */
      if (node->next != NULL)
	{
	  if (!write_card32 (cache, next_offset))
	    return FALSE;
	}
      else
	{
	  if (!write_card32 (cache, 0xffffffff))
	    return FALSE;
	}
      
1123 1124 1125 1126 1127 1128 1129 1130 1131
      name_size = 0;
      name_offset = find_string (node->name);
      if (name_offset <= 0)
        {
          name_offset = *offset + 12;
          name_size = ALIGN_VALUE (strlen (node->name) + 1, 4);
          add_string (node->name, name_offset);
        }
      if (!write_card32 (cache, name_offset))
1132 1133
	return FALSE;
      
1134 1135
      image_list_offset = *offset + 12 + name_size;
      if (!write_card32 (cache, image_list_offset))
1136 1137 1138
	return FALSE;
      
      /* Icon name */
1139 1140 1141 1142 1143 1144
      if (name_size > 0)
        {
          if (!write_string (cache, node->name))
	    return FALSE;
        }

1145 1146 1147 1148 1149
      /* Image list */
      len = g_list_length (node->image_list);
      if (!write_card32 (cache, len))
	return FALSE;
      
Anders Carlsson's avatar
Anders Carlsson committed
1150
      /* Image data goes right after the image list */
1151
      tmp = image_list_offset + 4 + len * 8;
Anders Carlsson's avatar
Anders Carlsson committed
1152

1153
      list = node->image_list;
Anders Carlsson's avatar
Anders Carlsson committed
1154
      data_offset = image_data_offset;
1155 1156 1157
      for (i = 0; i < len; i++)
	{
	  Image *image = list->data;
Anders Carlsson's avatar
Anders Carlsson committed
1158
	  int image_data_size = get_image_data_size (image);
1159

1160 1161 1162 1163 1164 1165 1166
	  /* Directory index */
	  if (!write_card16 (cache, image->dir_index))
	    return FALSE;
	  
	  /* Flags */
	  if (!write_card16 (cache, image->flags))
	    return FALSE;
Anders Carlsson's avatar
Anders Carlsson committed
1167

1168
	  /* Image data offset */
Anders Carlsson's avatar
Anders Carlsson committed
1169 1170 1171 1172 1173 1174
	  if (image_data_size > 0)
	    {
	      if (!write_card32 (cache, data_offset))
		return FALSE;
	      data_offset += image_data_size;
	    }
1175
	  else 
Anders Carlsson's avatar
Anders Carlsson committed
1176 1177 1178 1179 1180
	    {
	      if (!write_card32 (cache, 0))
		return FALSE;
	    }

1181 1182 1183
	  list = list->next;
	}

Anders Carlsson's avatar
Anders Carlsson committed
1184 1185 1186 1187 1188 1189 1190 1191
      /* Now write the image data */
      list = node->image_list;
      for (i = 0; i < len; i++, list = list->next)
	{
	  Image *image = list->data;
	  int pixel_data_size = get_image_pixel_data_size (image);
	  int meta_data_size = get_image_meta_data_size (image);

1192
	  if (get_image_data_size (image) == 0)
Anders Carlsson's avatar
Anders Carlsson committed
1193 1194 1195 1196 1197
	    continue;

	  /* Pixel data */
	  if (pixel_data_size > 0) 
	    {
1198
	      image->image_data->offset = image_data_offset + 8;
1199 1200
	      if (!write_card32 (cache, image->image_data->offset))
		return FALSE;
Anders Carlsson's avatar
Anders Carlsson committed
1201 1202 1203
	    }
	  else
	    {
1204
	      if (!write_card32 (cache, (guint32) (image->image_data ? image->image_data->offset : 0)))
Anders Carlsson's avatar
Anders Carlsson committed
1205 1206 1207 1208 1209
		return FALSE;
	    }

	  if (meta_data_size > 0)
	    {
1210 1211
	      image->icon_data->offset = image_data_offset + pixel_data_size + 8;
	      if (!write_card32 (cache, image->icon_data->offset))
Anders Carlsson's avatar
Anders Carlsson committed
1212 1213 1214 1215
		return FALSE;
	    }
	  else
	    {
1216
	      if (!write_card32 (cache, image->icon_data ? image->icon_data->offset : 0))
Anders Carlsson's avatar
Anders Carlsson committed
1217 1218 1219 1220 1221
		return FALSE;
	    }

	  if (pixel_data_size > 0)
	    {
1222
	      if (!write_image_data (cache, image->image_data, image->image_data->offset))
Anders Carlsson's avatar
Anders Carlsson committed
1223 1224 1225 1226 1227
		return FALSE;
	    }
	  
	  if (meta_data_size > 0)
	    {
1228 1229 1230
              if (!write_icon_data (cache, image->icon_data, image->icon_data->offset))
                return FALSE;
            }
Anders Carlsson's avatar
Anders Carlsson committed
1231 1232 1233 1234

	  image_data_offset += pixel_data_size + meta_data_size + 8;
	}
      
1235 1236 1237 1238 1239 1240 1241
      *offset = next_offset;
      node = node->next;
    }
  
  return TRUE;
}

1242
static gboolean
1243 1244 1245 1246 1247 1248 1249 1250 1251
write_hash_table (FILE *cache, HashContext *context, int *new_offset)
{
  int offset = HASH_OFFSET;
  int node_offset;
  int i;

  if (!(write_card32 (cache, context->size)))
    return FALSE;

1252 1253 1254
  offset += 4;
  node_offset = offset + context->size * 4;
  /* Just write zeros here, we will rewrite this later */  
1255 1256
  for (i = 0; i < context->size; i++)
    {
1257 1258
      if (!write_card32 (cache, 0))
	return FALSE;
1259 1260 1261 1262 1263 1264 1265 1266
    }

  /* Now write the buckets */
  for (i = 0; i < context->size; i++)
    {
      if (!context->nodes[i])
	continue;

1267
      g_assert (node_offset % 4 == 0);
1268 1269 1270 1271
      if (!write_bucket (cache, context->nodes[i], &node_offset))
	return FALSE;
    }

1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289
  *new_offset = node_offset;

  /* Now write out the bucket offsets */

  fseek (cache, offset, SEEK_SET);

  for (i = 0; i < context->size; i++)
    {
      if (context->nodes[i] != NULL)
        node_offset = context->nodes[i]->offset;
      else
	node_offset = 0xffffffff;
      if (!write_card32 (cache, node_offset))
        return FALSE;
    }

  fseek (cache, 0, SEEK_END);

1290 1291 1292
  return TRUE;
}

1293
static gboolean
1294 1295 1296 1297 1298
write_dir_index (FILE *cache, int offset, GList *directories)
{
  int n_dirs;
  GList *d;
  char *dir;
1299
  int tmp, tmp2;
1300 1301 1302 1303 1304 1305 1306 1307

  n_dirs = g_list_length (directories);

  if (!write_card32 (cache, n_dirs))
    return FALSE;

  offset += 4 + n_dirs * 4;

1308
  tmp = offset;
1309 1310 1311
  for (d = directories; d; d = d->next)
    {
      dir = d->data;
1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331
  
      tmp2 = find_string (dir);
    
      if (tmp2 == 0 || tmp2 == -1)
        {
          tmp2 = tmp;
          tmp += ALIGN_VALUE (strlen (dir) + 1, 4);
          /* We're playing a little game with negative
           * offsets here to handle duplicate strings in 
           * the array, even though that should not 
           * really happen for the directory index.
           */
          add_string (dir, -tmp2);
        }
      else if (tmp2 < 0)
        {
          tmp2 = -tmp2;
        }

      if (!write_card32 (cache, tmp2))
1332 1333 1334
	return FALSE;
    }

1335
  g_assert (offset == ftell (cache));
1336 1337 1338 1339
  for (d = directories; d; d = d->next)
    {
      dir = d->data;

1340 1341 1342 1343 1344 1345 1346 1347 1348 1349
      tmp2 = find_string (dir);
      g_assert (tmp2 != 0 && tmp2 != -1);
      if (tmp2 < 0)
        {
          tmp2 = -tmp2;
          g_assert (tmp2 == ftell (cache));
          add_string (dir, tmp2); 
          if (!write_string (cache, dir))
	    return FALSE;
        }
1350 1351 1352 1353 1354
    }
  
  return TRUE;
}

1355
static gboolean
1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373
write_file (FILE *cache, GHashTable *files, GList *directories)
{
  HashContext context;
  int new_offset;

  /* Convert the hash table into something looking a bit more
   * like what we want to write to disk.
   */
  context.size = g_spaced_primes_closest (g_hash_table_size (files) / 3);
  context.nodes = g_new0 (HashNode *, context.size);
  
  g_hash_table_foreach_remove (files, convert_to_hash, &context);

  /* Now write the file */
  /* We write 0 as the directory list offset and go
   * back and change it later */
  if (!write_header (cache, 0))
    {
1374
      g_printerr (_("Failed to write header\n"));
1375 1376 1377 1378 1379
      return FALSE;
    }

  if (!write_hash_table (cache, &context, &new_offset))
    {
1380
      g_printerr (_("Failed to write hash table\n"));
1381 1382 1383 1384 1385
      return FALSE;
    }

  if (!write_dir_index (cache, new_offset, directories))
    {
Matthias Clasen's avatar
Matthias Clasen committed
1386
      g_printerr (_("Failed to write folder index\n"));
1387 1388 1389 1390 1391 1392 1393
      return FALSE;
    }
  
  rewind (cache);

  if (!write_header (cache, new_offset))
    {
1394
      g_printerr (_("Failed to rewrite header\n"));
1395 1396 1397 1398 1399 1400
      return FALSE;
    }
    
  return TRUE;
}

1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417
static gboolean
validate_file (const gchar *file)
{
  GMappedFile *map;
  CacheInfo info;

  map = g_mapped_file_new (file, FALSE, NULL);
  if (!map)
    return FALSE;

  info.cache = g_mapped_file_get_contents (map);
  info.cache_size = g_mapped_file_get_length (map);
  info.n_directories = 0;
  info.flags = CHECK_OFFSETS|CHECK_STRINGS|CHECK_PIXBUFS;

  if (!_gtk_icon_cache_validate (&info)) 
    {
1418
      g_mapped_file_unref (map);
1419 1420 1421
      return FALSE;
    }
  
1422
  g_mapped_file_unref (map);
1423 1424 1425 1426

  return TRUE;
}

1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443
/**
 * safe_fclose:
 * @f: A FILE* stream, must have underlying fd
 *
 * Unix defaults for data preservation after system crash
 * are unspecified, and many systems will eat your data
 * in this situation unless you explicitly fsync().
 *
 * Returns: %TRUE on success, %FALSE on failure, and will set errno()
 */
static gboolean
safe_fclose (FILE *f)
{
  int fd = fileno (f);
  g_assert (fd >= 0);
  if (fflush (f) == EOF)
    return FALSE;
Tor Lillqvist's avatar
Tor Lillqvist committed
1444
#ifndef G_OS_WIN32
1445 1446
  if (fsync (fd) < 0)
    return FALSE;
Tor Lillqvist's avatar
Tor Lillqvist committed
1447
#endif
1448 1449 1450 1451 1452
  if (fclose (f) == EOF)
    return FALSE;
  return TRUE;
}

1453
static void
1454 1455 1456
build_cache (const gchar *path)
{
  gchar *cache_path, *tmp_cache_path;
1457 1458 1459
#ifdef G_OS_WIN32
  gchar *bak_cache_path = NULL;
#endif
1460 1461 1462 1463 1464
  GHashTable *files;
  FILE *cache;
  struct stat path_stat, cache_stat;
  struct utimbuf utime_buf;
  GList *directories = NULL;
1465
  int fd;
1466
  int retry_count = 0;
1467
#ifndef G_OS_WIN32
1468
  mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
1469 1470 1471 1472 1473 1474 1475
#else
  int mode = _S_IWRITE | _S_IREAD;
#endif
#ifndef _O_BINARY
#define _O_BINARY 0
#endif

1476
  tmp_cache_path = g_build_filename (path, "."CACHE_NAME, NULL);
1477
  cache_path = g_build_filename (path, CACHE_NAME, NULL);
1478

1479
opentmp:
Tor Lillqvist's avatar
Tor Lillqvist committed
1480
  if ((fd = g_open (tmp_cache_path, O_WRONLY | O_CREAT | O_EXCL | O_TRUNC | _O_BINARY, mode)) == -1)
1481
    {
1482 1483 1484 1485 1486 1487
      if (force_update && retry_count == 0)
        {
          retry_count++;
          g_remove (tmp_cache_path);
          goto opentmp;
        }
1488 1489 1490 1491 1492 1493
      g_printerr (_("Failed to open file %s : %s\n"), tmp_cache_path, g_strerror (errno));
      exit (1);
    }

  cache = fdopen (fd, "wb");

1494 1495
  if (!cache)
    {
1496
      g_printerr (_("Failed to write cache file: %s\n"), g_strerror (errno));
1497 1498
      exit (1);
    }
1499
  
1500
  files = g_hash_table_new (g_str_hash, g_str_equal);
1501
  image_data_hash = g_hash_table_new (g_str_hash, g_str_equal);
1502 1503 1504
  icon_data_hash = g_hash_table_new (g_str_hash, g_str_equal);
  string_pool = g_hash_table_new (g_str_hash, g_str_equal);
 
1505 1506 1507 1508 1509 1510 1511
  directories = scan_directory (path, NULL, files, NULL, 0);

  if (g_hash_table_size (files) == 0)
    {
      /* Empty table, just close and remove the file */

      fclose (cache);
1512
      g_unlink (tmp_cache_path);
1513
      g_unlink (cache_path);
1514 1515 1516 1517
      exit (0);
    }
    
  /* FIXME: Handle failure */
1518 1519 1520 1521 1522
  if (!write_file (cache, files, directories))
    {
      g_unlink (tmp_cache_path);
      exit (1);
    }
1523

1524
  if (!safe_fclose (cache))
1525
    {
1526
      g_printerr (_("Failed to write cache file: %s\n"), g_strerror (errno));
1527
      g_unlink (tmp_cache_path);
1528 1529
      exit (1);
    }
1530 1531 1532 1533
  cache = NULL;

  g_list_foreach (directories, (GFunc)g_free, NULL);
  g_list_free (directories);
1534

1535 1536 1537
  if (!validate_file (tmp_cache_path))
    {
      g_printerr (_("The generated cache was invalid.\n"));
1538
      /*g_unlink (tmp_cache_path);*/
1539 1540 1541
      exit (1);
    }

1542 1543 1544 1545 1546 1547 1548
#ifdef G_OS_WIN32
  if (g_file_test (cache_path, G_FILE_TEST_EXISTS))
    {
      bak_cache_path = g_strconcat (cache_path, ".bak", NULL);
      g_unlink (bak_cache_path);
      if (g_rename (cache_path, bak_cache_path) == -1)
	{
1549 1550
          int errsv = errno;

1551
	  g_printerr (_("Could not rename %s to %s: %s, removing %s then.\n"),
1552
		      cache_path, bak_cache_path,
1553
		      g_strerror (errsv),
1554 1555 1556 1557 1558 1559 1560
		      cache_path);
	  g_unlink (cache_path);
	  bak_cache_path = NULL;
	}
    }
#endif

1561
  if (g_rename (tmp_cache_path, cache_path) == -1)
1562
    {
1563 1564
      int errsv = errno;

1565
      g_printerr (_("Could not rename %s to %s: %s\n"),
1566
		  tmp_cache_path, cache_path,
1567
		  g_strerror (errsv));
1568
      g_unlink (tmp_cache_path);
1569 1570 1571
#ifdef G_OS_WIN32
      if (bak_cache_path != NULL)
	if (g_rename (bak_cache_path, cache_path) == -1)
1572 1573 1574 1575 1576 1577 1578
          {
            errsv = errno;

            g_printerr (_("Could not rename %s back to %s: %s.\n"),
                        bak_cache_path, cache_path,
                        g_strerror (errsv));
          }
1579
#endif
1580 1581
      exit (1);
    }
1582 1583 1584 1585
#ifdef G_OS_WIN32
  if (bak_cache_path != NULL)
    g_unlink (bak_cache_path);
#endif
1586 1587 1588

  /* Update time */
  /* FIXME: What do do if an error occurs here? */
1589 1590 1591
  if (g_stat (path, &path_stat) < 0 ||
      g_stat (cache_path, &cache_stat))
    exit (1);
1592 1593 1594

  utime_buf.actime = path_stat.st_atime;
  utime_buf.modtime = cache_stat.st_mtime;
1595 1596 1597
#if GLIB_CHECK_VERSION (2, 17, 1)
  g_utime (path, &utime_buf);
#else
1598
  utime (path, &utime_buf);
1599 1600
#endif

Matthias Clasen's avatar
Matthias Clasen committed
1601
  if (!quiet)
1602
    g_printerr (_("Cache file created successfully.\n"));
1603 1604
}

1605
static void
1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625
write_csource (const gchar *path)
{
  gchar *cache_path;
  gchar *data;
  gsize len;
  gint i;

  cache_path = g_build_filename (path, CACHE_NAME, NULL);
  if (!g_file_get_contents (cache_path, &data, &len, NULL))
    exit (1);
  
  g_printf ("#ifdef __SUNPRO_C\n");
  g_printf ("#pragma align 4 (%s)\n", var_name);   
  g_printf ("#endif\n");
  
  g_printf ("#ifdef __GNUC__\n");
  g_printf ("static const guint8 %s[] __attribute__ ((__aligned__ (4))) = \n", var_name);
  g_printf ("#else\n");
  g_printf ("static const guint8 %s[] = \n", var_name);
  g_printf ("#endif\n");
1626 1627 1628

  g_printf ("{\n");
  for (i = 0; i < len - 1; i++)
1629
    {
1630 1631 1632 1633 1634
      if (i %12 == 0)
	g_printf ("  ");
      g_printf ("0x%02x, ", (guint8)data[i]);
      if (i % 12 == 11)
        g_printf ("\n");
1635
    }
1636 1637
  
  g_printf ("0x%02x\n};\n", (guint8)data[i]);
1638 1639
}

1640
static GOptionEntry args[] = {
1641
  { "force", 'f', 0, G_OPTION_ARG_NONE, &force_update, N_("Overwrite an existing cache, even if up to date"), NULL },
1642 1643 1644 1645
  { "ignore-theme-index", 't', 0, G_OPTION_ARG_NONE, &ignore_theme_index, N_("Don't check for the existence of index.theme"), NULL },
  { "index-only", 'i', 0, G_OPTION_ARG_NONE, &index_only, N_("Don't include image data in the cache"), NULL },
  { "source", 'c', 0, G_OPTION_ARG_STRING, &var_name, N_("Output a C header file"), "NAME" },
  { "quiet", 'q', 0, G_OPTION_ARG_NONE, &quiet, N_("Turn off verbose output"), NULL },
1646
  { "validate", 'v', 0, G_OPTION_ARG_NONE, &validate, N_("Validate existing icon cache"), NULL },
1647 1648 1649
  { NULL }
};

1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660
static void
printerr_handler (const gchar *string)
{
  const gchar *charset;

  fputs (g_get_prgname (), stderr);
  fputs (": ", stderr);
  if (g_get_charset (&charset))
    fputs (string, stderr); /* charset is UTF-8 already */
  else
    {
Matthias Clasen's avatar
Matthias Clasen committed
1661 1662 1663 1664 1665 1666 1667 1668 1669 1670
      gchar *result;

      result = g_convert_with_fallback (string, -1, charset, "UTF-8", "?", NULL, NULL, NULL);
      
      if (result)
        {
          fputs (result, stderr);
          g_free (result);
        }
   
1671 1672 1673 1674 1675
      fflush (stderr);
    }
}


1676 1677 1678 1679 1680 1681
int
main (int argc, char **argv)
{
  gchar *path;
  GOptionContext *context;

1682 1683
  if (argc < 2)
    return 0;
1684 1685

  g_set_printerr_handler (printerr_handler);
1686
  
Matthias Clasen's avatar
Matthias Clasen committed
1687 1688
  setlocale (LC_ALL, "");

1689
#ifdef ENABLE_NLS
1690
  bindtextdomain (GETTEXT_PACKAGE, GTK_LOCALEDIR);
1691
#ifdef HAVE_BIND_TEXTDOMAIN_CODESET
1692
  bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
1693 1694
#endif
#endif
1695

1696
  context = g_option_context_new ("ICONPATH");
1697
  g_option_context_add_main_entries (context, args, GETTEXT_PACKAGE);
1698 1699 1700 1701

  g_option_context_parse (context, &argc, &argv, NULL);
  
  path = argv[1];
1702 1703 1704
#ifdef G_OS_WIN32
  path = g_locale_to_utf8 (path, -1, NULL, NULL, NULL);
#endif
1705
  
1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727
  if (validate)
    {
       gchar *file = g_build_filename (path, CACHE_NAME, NULL);

       if (!g_file_test (file, G_FILE_TEST_IS_REGULAR))
         {
            if (!quiet)
              g_printerr (_("File not found: %s\n"), file);
            exit (1);
         }
       if (!validate_file (file))
         {
           if (!quiet)
             g_printerr (_("Not a valid icon cache: %s\n"), file);
           exit (1);
         }
       else 
         {
           exit (0);
         }
    }

1728
  if (!ignore_theme_index && !has_theme_index (path))
1729
    {
1730 1731
      if (path)
	{
Matthias Clasen's avatar
Matthias Clasen committed
1732
	  g_printerr (_("No theme index file.\n"));
1733 1734 1735 1736
	}
      else
	{
	  g_printerr (_("No theme index file in '%s'.\n"
1737
		    "If you really want to create an icon cache here, use --ignore-theme-index.\n"), path);
1738 1739
	}

1740 1741 1742
      return 1;
    }
  
1743 1744 1745
  if (!force_update && is_cache_up_to_date (path))
    return 0;

Anders Carlsson's avatar
Anders Carlsson committed
1746
  g_type_init ();
1747
  build_cache (path);
1748

1749 1750 1751
  if (strcmp (var_name, "-") != 0)
    write_csource (path);

1752 1753
  return 0;
}