Stepan Salenikovich | fb7f295 | 2015-05-25 16:44:19 -0400 | [diff] [blame] | 1 | #include "files.h" |
| 2 | |
| 3 | #include <memory> |
| 4 | #include "config.h" |
| 5 | #include <unistd.h> // to create symlinks |
| 6 | #include <errno.h> |
| 7 | #include <glib/gstdio.h> // for glib file utils |
| 8 | #include <string.h> |
| 9 | |
| 10 | void |
| 11 | autostart_symlink(gboolean autostart) |
| 12 | { |
| 13 | /* autostart is enabled by creating a symlink to gnome-ring.desktop in |
| 14 | * $XDG_CONFIG_HOME/autostart (by default ~/.config/autostart) |
| 15 | * and removing it to disable autostart |
| 16 | */ |
| 17 | |
| 18 | GError *error = NULL; |
| 19 | gchar *autostart_path = g_strconcat(g_get_user_config_dir(), "/autostart/gnome-ring.desktop", NULL); |
| 20 | |
| 21 | if (autostart) { |
| 22 | g_debug("enabling autostart"); |
| 23 | |
| 24 | gchar *desktop_path = NULL; |
| 25 | /* find where the .desktop file is by checking the following dirs in order |
| 26 | * - /usr/<data dir> |
| 27 | * - /usr/local/<data dir> |
| 28 | * - install data dir (check this last, as it might not be where the |
| 29 | * bin is actually isntalled on the system) |
| 30 | * |
| 31 | * note: no point in checking the local bin dir, even if the .desktop is |
| 32 | * there, if the binary is not installed on the system, the .desktop will |
| 33 | * not find it |
| 34 | */ |
| 35 | int num_paths = 3; |
| 36 | gchar *desktop_paths[num_paths]; |
| 37 | desktop_paths[0] = g_strconcat("/usr", RING_DATA_DIR, "/gnome-ring.desktop", NULL); |
| 38 | desktop_paths[1] = g_strconcat("/usr/local", RING_DATA_DIR, "/gnome-ring.desktop", NULL); |
| 39 | desktop_paths[2] = g_strconcat(RING_CLIENT_INSTALL, RING_DATA_DIR, "/gnome-ring.desktop", NULL); |
| 40 | |
| 41 | for (int i = 0; i < num_paths && !desktop_path; ++i) { |
| 42 | g_debug("checking %s", desktop_paths[i]); |
| 43 | if (g_file_test(desktop_paths[i], G_FILE_TEST_IS_REGULAR)) |
| 44 | desktop_path = desktop_paths[i]; |
| 45 | } |
| 46 | |
| 47 | if (!desktop_path) { |
| 48 | /* could not find where the .desktop is... default to the install one */ |
| 49 | desktop_path = desktop_paths[1]; |
| 50 | g_warning("cannot locate '%s', will try to create a symlink to it anyways", desktop_path); |
| 51 | } |
| 52 | |
| 53 | /* we want autostart_path to be a symlink to the current desktop_path |
| 54 | * if it is not, delete it and create one */ |
| 55 | |
| 56 | gboolean symlink_to_desktop = FALSE; |
| 57 | if (g_file_test(autostart_path, G_FILE_TEST_IS_SYMLINK)) { |
| 58 | /* is symlink, check if its to the right file */ |
| 59 | gchar *current_link = g_file_read_link(autostart_path, &error); |
| 60 | if (error) { |
| 61 | g_warning("could not read contents of symlink '%s': %s",autostart_path, error->message); |
| 62 | g_clear_error(&error); |
| 63 | } |
| 64 | |
| 65 | /* compare even if error occurs, as function handles nullptr */ |
| 66 | if (g_strcmp0(current_link, desktop_path) == 0) { |
| 67 | g_debug("'%s' is already a symlink to '%s'", autostart_path, desktop_path); |
| 68 | symlink_to_desktop = TRUE; |
| 69 | } else { |
| 70 | g_debug("'%s' exists but does not point to '%s', instead: '%s'", autostart_path, desktop_path, current_link); |
| 71 | |
| 72 | /* we need to delete it */ |
| 73 | if (g_remove(autostart_path) != 0) { |
| 74 | g_warning("could not remove '%s'", autostart_path); |
| 75 | } |
| 76 | } |
| 77 | g_free(current_link); |
| 78 | } |
| 79 | |
| 80 | if (!symlink_to_desktop) { |
| 81 | g_debug("creating symlink"); |
| 82 | |
| 83 | /* make sure the directory exists */ |
| 84 | gchar *autostart_dir = g_strconcat(g_get_user_config_dir(), "/autostart", NULL); |
| 85 | if (g_mkdir_with_parents(autostart_dir, 0700) != 0) |
| 86 | g_warning("'%s' dir doesn't exist and could not be created", autostart_dir); |
| 87 | g_free(autostart_dir); |
| 88 | |
| 89 | if (symlink(desktop_path, autostart_path) != 0) { |
| 90 | g_warning("could not create symlink: %s", strerror(errno)); |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | for (int i = 0; i < num_paths; ++i) { |
| 95 | g_free(desktop_paths[i]); |
| 96 | } |
| 97 | } else { |
| 98 | g_debug("disabling autostart"); |
| 99 | /* need to remove symlink or .desktop, if it exists |
| 100 | * G_FILE_TEST_IS_REGULAR will test for both file and symlink, since it |
| 101 | * follows symlinks */ |
| 102 | if (g_file_test(autostart_path, G_FILE_TEST_IS_REGULAR)) { |
| 103 | g_debug("'%s' exists, removing", autostart_path); |
| 104 | |
| 105 | if (g_remove(autostart_path) != 0) { |
| 106 | g_warning("could not remove '%s'", autostart_path); |
| 107 | } |
| 108 | } else { |
| 109 | g_debug("'%s' doesn't exist, nothing to do", autostart_path); |
| 110 | } |
| 111 | |
| 112 | } |
| 113 | g_free(autostart_path); |
| 114 | } |
| 115 | |
| 116 | GSettingsSchema * |
| 117 | get_ring_schema() |
| 118 | { |
| 119 | static std::unique_ptr<GSettingsSchema, decltype(g_settings_schema_unref )&> |
| 120 | ring_schema(nullptr, g_settings_schema_unref); |
| 121 | |
| 122 | if (ring_schema.get() == nullptr) { |
| 123 | GSettingsSchema *schema = NULL; |
| 124 | |
| 125 | /* find gschema.compiled by checking the following dirs in order: |
| 126 | * - current bin dir |
| 127 | * - install data dir |
| 128 | * - default dir |
| 129 | * note that the install and default dir may be the same |
| 130 | */ |
| 131 | GError *error = NULL; |
| 132 | |
| 133 | /* try local first */ |
| 134 | g_debug("looking for schema locally"); |
| 135 | gchar *schema_dir_local = g_strconcat(".", NULL); |
| 136 | GSettingsSchemaSource *schema_source_local = NULL; |
| 137 | schema_source_local = g_settings_schema_source_new_from_directory( |
| 138 | schema_dir_local, |
| 139 | g_settings_schema_source_get_default(), |
| 140 | FALSE, |
| 141 | &error); |
| 142 | |
| 143 | if (!error) { |
| 144 | schema = g_settings_schema_source_lookup(schema_source_local, |
| 145 | RING_CLIENT_APP_ID, |
| 146 | TRUE); |
| 147 | g_settings_schema_source_unref(schema_source_local); |
| 148 | } else { |
| 149 | g_debug("error looking up ring schema locally: %s", error->message); |
| 150 | g_clear_error(&error); |
| 151 | } |
| 152 | g_free(schema_dir_local); |
| 153 | |
| 154 | if (!schema) { |
| 155 | /* try install dir */ |
| 156 | g_debug("looking for schema in insall dir"); |
| 157 | gchar *schema_dir_install = g_strconcat(RING_CLIENT_INSTALL, "/share/glib-2.0/schemas", NULL); |
| 158 | GSettingsSchemaSource *schema_source_install = NULL; |
| 159 | schema_source_install = g_settings_schema_source_new_from_directory( |
| 160 | schema_dir_install, |
| 161 | g_settings_schema_source_get_default(), |
| 162 | TRUE, |
| 163 | &error); |
| 164 | |
| 165 | if (!error) { |
| 166 | schema = g_settings_schema_source_lookup(schema_source_install, |
| 167 | RING_CLIENT_APP_ID, |
| 168 | TRUE); |
| 169 | g_settings_schema_source_unref(schema_source_install); |
| 170 | } else { |
| 171 | g_debug("error looking up ring schema in install dir: %s", error->message); |
| 172 | g_clear_error(&error); |
| 173 | } |
| 174 | g_free(schema_dir_install); |
| 175 | } |
| 176 | |
| 177 | if (!schema) { |
| 178 | /* try default dir */ |
| 179 | g_debug("looking for schema in default dir"); |
| 180 | |
| 181 | schema = g_settings_schema_source_lookup(g_settings_schema_source_get_default(), |
| 182 | RING_CLIENT_APP_ID, |
| 183 | TRUE); |
| 184 | } |
| 185 | ring_schema.reset(schema); |
| 186 | } |
| 187 | |
| 188 | return ring_schema.get(); |
| 189 | } |