Dogcows Code - chaz/openbox/blob - obt/paths.c

   1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
   2
   3    obt/paths.c for the Openbox window manager
   4    Copyright (c) 2003-2007   Dana Jansens
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    See the COPYING file for a copy of the GNU General Public License.
  17 */
  18
  19 #include "obt/paths.h"
  20 #include "obt/util.h"
  21
  22 #ifdef HAVE_SYS_STAT_H
  23 #  include <sys/stat.h>
  24 #endif
  25 #ifdef HAVE_SYS_TYPES_H
  26 #  include <sys/types.h>
  27 #endif
  28 #ifdef HAVE_STRING_H
  29 #  include <string.h>
  30 #endif
  31
  32 struct _ObtPaths
  33 {
  34     gint   ref;
  35     gchar  *config_home;
  36     gchar  *data_home;
  37     gchar  *cache_home;
  38     GSList *config_dirs;
  39     GSList *data_dirs;
  40 };
  41
  42 static gint slist_path_cmp(const gchar *a, const gchar *b)
  43 {
  44     return strcmp(a, b);
  45 }
  46
  47 typedef GSList* (*GSListFunc) (gpointer list, gconstpointer data);
  48
  49 static GSList* slist_path_add(GSList *list, gpointer data, GSListFunc func)
  50 {
  51     g_assert(func);
  52
  53     if (!data)
  54         return list;
  55
  56     if (!g_slist_find_custom(list, data, (GCompareFunc) slist_path_cmp))
  57         list = func(list, data);
  58     else
  59         g_free(data);
  60
  61     return list;
  62 }
  63
  64 static GSList* split_paths(const gchar *paths)
  65 {
  66     GSList *list = NULL;
  67     gchar **spl, **it;
  68
  69     if (!paths)
  70         return NULL;
  71     spl = g_strsplit(paths, ":", -1);
  72     for (it = spl; *it; ++it)
  73         list = slist_path_add(list, *it, (GSListFunc) g_slist_append);
  74     g_free(spl);
  75     return list;
  76 }
  77
  78 ObtPaths* obt_paths_new(void)
  79 {
  80     ObtPaths *p;
  81     const gchar *path;
  82
  83     p = g_new0(ObtPaths, 1);
  84     p->ref = 1;
  85
  86     path = g_getenv("XDG_CONFIG_HOME");
  87     if (path && path[0] != '\0') /* not unset or empty */
  88         p->config_home = g_build_filename(path, NULL);
  89     else
  90         p->config_home = g_build_filename(g_get_home_dir(), ".config", NULL);
  91
  92     path = g_getenv("XDG_DATA_HOME");
  93     if (path && path[0] != '\0') /* not unset or empty */
  94         p->data_home = g_build_filename(path, NULL);
  95     else
  96         p->data_home = g_build_filename(g_get_home_dir(), ".local",
  97                                         "share", NULL);
  98
  99     path = g_getenv("XDG_CACHE_HOME");
 100     if (path && path[0] != '\0') /* not unset or empty */
 101         p->cache_home = g_build_filename(path, NULL);
 102     else
 103         p->cache_home = g_build_filename(g_get_home_dir(), ".cache", NULL);
 104
 105     path = g_getenv("XDG_CONFIG_DIRS");
 106     if (path && path[0] != '\0') /* not unset or empty */
 107         p->config_dirs = split_paths(path);
 108     else {
 109         p->config_dirs = slist_path_add(p->config_dirs,
 110                                         g_strdup(CONFIGDIR),
 111                                         (GSListFunc) g_slist_append);
 112         p->config_dirs = slist_path_add(p->config_dirs,
 113                                         g_build_filename
 114                                         (G_DIR_SEPARATOR_S,
 115                                          "etc", "xdg", NULL),
 116                                         (GSListFunc) g_slist_append);
 117     }
 118     p->config_dirs = slist_path_add(p->config_dirs,
 119                                     g_strdup(p->config_home),
 120                                     (GSListFunc) g_slist_prepend);
 121
 122     path = g_getenv("XDG_DATA_DIRS");
 123     if (path && path[0] != '\0') /* not unset or empty */
 124         p->data_dirs = split_paths(path);
 125     else {
 126         p->data_dirs = slist_path_add(p->data_dirs,
 127                                       g_strdup(DATADIR),
 128                                       (GSListFunc) g_slist_append);
 129         p->data_dirs = slist_path_add(p->data_dirs,
 130                                       g_build_filename
 131                                       (G_DIR_SEPARATOR_S,
 132                                        "usr", "local", "share", NULL),
 133                                       (GSListFunc) g_slist_append);
 134         p->data_dirs = slist_path_add(p->data_dirs,
 135                                       g_build_filename
 136                                       (G_DIR_SEPARATOR_S,
 137                                        "usr", "share", NULL),
 138                                       (GSListFunc) g_slist_append);
 139     }
 140     p->data_dirs = slist_path_add(p->data_dirs,
 141                                   g_strdup(p->data_home),
 142                                   (GSListFunc) g_slist_prepend);
 143     return p;
 144 }
 145
 146 void obt_paths_ref(ObtPaths *p)
 147 {
 148     ++p->ref;
 149 }
 150
 151 void obt_paths_unref(ObtPaths *p)
 152 {
 153     if (p && --p->ref == 0) {
 154         GSList *it;
 155
 156         for (it = p->config_dirs; it; it = g_slist_next(it))
 157             g_free(it->data);
 158         g_slist_free(p->config_dirs);
 159         for (it = p->data_dirs; it; it = g_slist_next(it))
 160             g_free(it->data);
 161         g_slist_free(p->data_dirs);
 162         g_free(p->config_home);
 163         g_free(p->data_home);
 164         g_free(p->cache_home);
 165
 166         obt_free0(p, ObtPaths, 1);
 167     }
 168 }
 169
 170 gchar *obt_paths_expand_tilde(const gchar *f)
 171 {
 172     gchar *ret;
 173     GRegex *regex;
 174
 175     if (!f)
 176         return NULL;
 177
 178     regex = g_regex_new("(?:^|(?<=[ \\t]))~(?=[/ \\t$])", G_REGEX_MULTILINE | G_REGEX_RAW, 0, NULL);
 179     ret = g_regex_replace_literal(regex, f, -1, 0, g_get_home_dir(), 0, NULL);
 180     g_regex_unref(regex);
 181
 182     return ret;
 183 }
 184
 185 gboolean obt_paths_mkdir(const gchar *path, gint mode)
 186 {
 187     gboolean ret = TRUE;
 188
 189     g_return_val_if_fail(path != NULL, FALSE);
 190     g_return_val_if_fail(path[0] != '\0', FALSE);
 191
 192     if (!g_file_test(path, G_FILE_TEST_IS_DIR))
 193         if (mkdir(path, mode) == -1)
 194             ret = FALSE;
 195
 196     return ret;
 197 }
 198
 199 gboolean obt_paths_mkdir_path(const gchar *path, gint mode)
 200 {
 201     gboolean ret = TRUE;
 202
 203     g_return_val_if_fail(path != NULL, FALSE);
 204     g_return_val_if_fail(path[0] == '/', FALSE);
 205
 206     if (!g_file_test(path, G_FILE_TEST_IS_DIR)) {
 207         gchar *c, *e;
 208
 209         c = g_strdup(path);
 210         e = c;
 211         while ((e = strchr(e + 1, '/'))) {
 212             *e = '\0';
 213             if (!(ret = obt_paths_mkdir(c, mode)))
 214                 goto parse_mkdir_path_end;
 215             *e = '/';
 216         }
 217         ret = obt_paths_mkdir(c, mode);
 218
 219     parse_mkdir_path_end:
 220         g_free(c);
 221     }
 222
 223     return ret;
 224 }
 225
 226 const gchar* obt_paths_config_home(ObtPaths *p)
 227 {
 228     return p->config_home;
 229 }
 230
 231 const gchar* obt_paths_data_home(ObtPaths *p)
 232 {
 233     return p->data_home;
 234 }
 235
 236 const gchar* obt_paths_cache_home(ObtPaths *p)
 237 {
 238     return p->cache_home;
 239 }
 240
 241 GSList* obt_paths_config_dirs(ObtPaths *p)
 242 {
 243     return p->config_dirs;
 244 }
 245
 246 GSList* obt_paths_data_dirs(ObtPaths *p)
 247 {
 248     return p->data_dirs;
 249 }