Move some XDG code from chrome to base.

chrome/third_party/xdg_user_dirs/xdg_user_dir_lookup.cc

Index: chrome/third_party/xdg_user_dirs/xdg_user_dir_lookup.cc
===================================================================
--- chrome/third_party/xdg_user_dirs/xdg_user_dir_lookup.cc	(revision 33536)
+++ chrome/third_party/xdg_user_dirs/xdg_user_dir_lookup.cc	(working copy)
@@ -1,232 +0,0 @@
-/*
-  This file is not licenced under the GPL like the rest of the code.
-  Its is under the MIT license, to encourage reuse by cut-and-paste.
-
-  Copyright (c) 2007 Red Hat, inc
-
-  Permission is hereby granted, free of charge, to any person
-  obtaining a copy of this software and associated documentation files
-  (the "Software"), to deal in the Software without restriction,
-  including without limitation the rights to use, copy, modify, merge,
-  publish, distribute, sublicense, and/or sell copies of the Software,
-  and to permit persons to whom the Software is furnished to do so,
-  subject to the following conditions: 
-
-  The above copyright notice and this permission notice shall be
-  included in all copies or substantial portions of the Software. 
-
-  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
-  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
-  ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-  SOFTWARE.
-*/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-/**
- * xdg_user_dir_lookup_with_fallback:
- * @type: a string specifying the type of directory
- * @fallback: value to use if the directory isn't specified by the user
- * @returns: a newly allocated absolute pathname
- *
- * Looks up a XDG user directory of the specified type.
- * Example of types are "DESKTOP" and "DOWNLOAD".
- *
- * In case the user hasn't specified any directory for the specified
- * type the value returned is @fallback.
- *
- * The return value is newly allocated and must be freed with
- * free(). The return value is never NULL if @fallback != NULL, unless
- * out of memory.
- **/
-static char *
-xdg_user_dir_lookup_with_fallback (const char *type, const char *fallback)
-{
-  FILE *file;
-  char *home_dir, *config_home, *config_file;
-  char buffer[512];
-  char *user_dir;
-  char *p, *d;
-  int len;
-  int relative;
-  
-  home_dir = getenv ("HOME");
-
-  if (home_dir == NULL)
-    goto error;
-
-  config_home = getenv ("XDG_CONFIG_HOME");
-  if (config_home == NULL || config_home[0] == 0)
-    {
-      config_file = (char*) malloc (strlen (home_dir) + strlen ("/.config/user-dirs.dirs") + 1);
-      if (config_file == NULL)
-        goto error;
-
-      strcpy (config_file, home_dir);
-      strcat (config_file, "/.config/user-dirs.dirs");
-    }
-  else
-    {
-      config_file = (char*) malloc (strlen (config_home) + strlen ("/user-dirs.dirs") + 1);
-      if (config_file == NULL)
-        goto error;
-
-      strcpy (config_file, config_home);
-      strcat (config_file, "/user-dirs.dirs");
-    }
-
-  file = fopen (config_file, "r");
-  free (config_file);
-  if (file == NULL)
-    goto error;
-
-  user_dir = NULL;
-  while (fgets (buffer, sizeof (buffer), file))
-    {
-      /* Remove newline at end */
-      len = strlen (buffer);
-      if (len > 0 && buffer[len-1] == '\n')
-	buffer[len-1] = 0;
-      
-      p = buffer;
-      while (*p == ' ' || *p == '\t')
-	p++;
-      
-      if (strncmp (p, "XDG_", 4) != 0)
-	continue;
-      p += 4;
-      if (strncmp (p, type, strlen (type)) != 0)
-	continue;
-      p += strlen (type);
-      if (strncmp (p, "_DIR", 4) != 0)
-	continue;
-      p += 4;
-
-      while (*p == ' ' || *p == '\t')
-	p++;
-
-      if (*p != '=')
-	continue;
-      p++;
-      
-      while (*p == ' ' || *p == '\t')
-	p++;
-
-      if (*p != '"')
-	continue;
-      p++;
-      
-      relative = 0;
-      if (strncmp (p, "$HOME/", 6) == 0)
-	{
-	  p += 6;
-	  relative = 1;
-	}
-      else if (*p != '/')
-	continue;
-      
-      if (relative)
-	{
-	  user_dir = (char*) malloc (strlen (home_dir) + 1 + strlen (p) + 1);
-          if (user_dir == NULL)
-            goto error2;
-
-	  strcpy (user_dir, home_dir);
-	  strcat (user_dir, "/");
-	}
-      else
-	{
-	  user_dir = (char*) malloc (strlen (p) + 1);
-          if (user_dir == NULL)
-            goto error2;
-
-	  *user_dir = 0;
-	}
-      
-      d = user_dir + strlen (user_dir);
-      while (*p && *p != '"')
-	{
-	  if ((*p == '\\') && (*(p+1) != 0))
-	    p++;
-	  *d++ = *p++;
-	}
-      *d = 0;
-    }
-error2:
-  fclose (file);
-
-  if (user_dir)
-    return user_dir;
-
- error:
-  if (fallback)
-    return strdup (fallback);
-  return NULL;
-}
-
-/**
- * xdg_user_dir_lookup:
- * @type: a string specifying the type of directory
- * @returns: a newly allocated absolute pathname
- *
- * Looks up a XDG user directory of the specified type.
- * Example of types are "DESKTOP" and "DOWNLOAD".
- *
- * The return value is always != NULL (unless out of memory),
- * and if a directory
- * for the type is not specified by the user the default
- * is the home directory. Except for DESKTOP which defaults
- * to ~/Desktop.
- *
- * The return value is newly allocated and must be freed with
- * free().
- **/
-char *
-xdg_user_dir_lookup (const char *type)
-{
-  char *dir, *home_dir, *user_dir;
-	  
-  dir = xdg_user_dir_lookup_with_fallback (type, NULL);
-  if (dir != NULL)
-    return dir;
-  
-  home_dir = getenv ("HOME");
-  
-  if (home_dir == NULL)
-    return strdup ("/tmp");
-  
-  /* Special case desktop for historical compatibility */
-  if (strcmp (type, "DESKTOP") == 0)
-    {
-      user_dir = (char*) malloc (strlen (home_dir) + strlen ("/Desktop") + 1);
-      if (user_dir == NULL)
-        return NULL;
-
-      strcpy (user_dir, home_dir);
-      strcat (user_dir, "/Desktop");
-      return user_dir;
-    }
-  
-  return strdup (home_dir);
-}
-
-#ifdef STANDALONE_XDG_USER_DIR_LOOKUP
-int
-main (int argc, char *argv[])
-{
-  if (argc != 2)
-    {
-      fprintf (stderr, "Usage %s <dir-type>\n", argv[0]);
-      exit (1);
-    }
-  
-  printf ("%s\n", xdg_user_dir_lookup (argv[1]));
-  return 0;
-}
-#endif