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Add support for vendor override files

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You can drop a key-file in the schema directory that looks like:

[org.gtk.Example]
key='value'

to override the default value of 'key' in schema 'org.gtk.Example'.
This commit is contained in:
Ryan Lortie 2010-07-27 22:56:30 +02:00
parent 723692dfb9
commit a6f1bb4e17
1 changed files with 154 additions and 0 deletions
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154
gio/gschema-compile.c
View File

@ -1614,6 +1614,148 @@ compare_strings (gconstpointer a,
return cmp;
}
static gboolean
set_overrides (GHashTable *schema_table,
gchar **files,
GError **error)
{
const gchar *filename;
while ((filename = *files++))
{
GKeyFile *key_file;
gchar **groups;
gint i;
key_file = g_key_file_new ();
if (!g_key_file_load_from_file (key_file, filename, 0, error))
{
g_key_file_free (key_file);
return FALSE;
}
groups = g_key_file_get_groups (key_file, NULL);
for (i = 0; groups[i]; i++)
{
const gchar *group = groups[i];
SchemaState *schema;
gchar **keys;
gint j;
schema = g_hash_table_lookup (schema_table, group);
if (schema == NULL)
{
g_set_error (error, G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_GROUP_NOT_FOUND,
"No such schema `%s' specified in "
"override file `%s'", group, filename);
g_key_file_free (key_file);
g_strfreev (groups);
return FALSE;
}
keys = g_key_file_get_keys (key_file, group, NULL, NULL);
g_assert (keys != NULL);
for (j = 0; keys[j]; j++)
{
const gchar *key = keys[j];
KeyState *state;
GVariant *value;
gchar *string;
state = g_hash_table_lookup (schema->keys, key);
if (state == NULL)
{
g_set_error (error, G_KEY_FILE_ERROR,
G_KEY_FILE_ERROR_KEY_NOT_FOUND,
"No such key `%s' in schema `%s' as "
"specified in override file `%s'",
key, group, filename);
g_key_file_free (key_file);
g_strfreev (groups);
g_strfreev (keys);
return FALSE;
}
string = g_key_file_get_value (key_file, group, key, NULL);
g_assert (string != NULL);
value = g_variant_parse (state->type, string,
NULL, NULL, error);
if (value == NULL)
{
g_key_file_free (key_file);
g_strfreev (groups);
g_strfreev (keys);
g_free (string);
return FALSE;
}
if (state->minimum)
{
if (g_variant_compare (value, state->minimum) < 0 ||
g_variant_compare (value, state->maximum) > 0)
{
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"override for key `%s' in schema `%s' in "
"override file `%s' is out of the range "
"given in the schema",
key, group, filename);
g_key_file_free (key_file);
g_variant_unref (value);
g_strfreev (groups);
g_strfreev (keys);
g_free (string);
return FALSE;
}
}
else if (state->strinfo->len)
{
if (!is_valid_choices (value, state->strinfo))
{
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"override for key `%s' in schema `%s' in "
"override file `%s' is not in the list "
"of valid choices", key, group, filename);
g_key_file_free (key_file);
g_variant_unref (value);
g_strfreev (groups);
g_strfreev (keys);
g_free (string);
return FALSE;
}
}
g_variant_unref (state->default_value);
state->default_value = value;
}
g_strfreev (keys);
}
g_strfreev (groups);
}
return TRUE;
}
int
main (int argc, char **argv)
{
@ -1627,6 +1769,7 @@ main (int argc, char **argv)
gboolean uninstall = FALSE;
gboolean dry_run = FALSE;
gchar **schema_files = NULL;
gchar **override_files = NULL;
GOptionContext *context;
GOptionEntry entries[] = {
{ "targetdir", 0, 0, G_OPTION_ARG_FILENAME, &targetdir, N_("where to store the gschemas.compiled file"), N_("DIRECTORY") },
@ -1673,9 +1816,11 @@ main (int argc, char **argv)
if (!schema_files)
{
GPtrArray *overrides;
GPtrArray *files;
files = g_ptr_array_new ();
overrides = g_ptr_array_new ();
dir = g_dir_open (srcdir, 0, &error);
if (dir == NULL)
@ -1689,6 +1834,10 @@ main (int argc, char **argv)
if (g_str_has_suffix (file, ".gschema.xml") ||
g_str_has_suffix (file, ".enums.xml"))
g_ptr_array_add (files, g_build_filename (srcdir, file, NULL));
else if (g_str_has_suffix (file, ".gschema.override"))
g_ptr_array_add (overrides,
g_build_filename (srcdir, file, NULL));
}
if (files->len == 0)
@ -1706,11 +1855,16 @@ main (int argc, char **argv)
g_ptr_array_sort (files, compare_strings);
g_ptr_array_add (files, NULL);
g_ptr_array_sort (overrides, compare_strings);
g_ptr_array_add (overrides, NULL);
schema_files = (char **) g_ptr_array_free (files, FALSE);
override_files = (gchar **) g_ptr_array_free (overrides, FALSE);
}
if (!(table = parse_gschema_files (schema_files, &error)) ||
!set_overrides (table, override_files, &error) ||
(!dry_run && !write_to_file (table, target, &error)))
{
fprintf (stderr, "%s\n", error->message);