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ucm: Set default include path

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Many UCM profiles include the UCM profile components under ucm/*
subdirectories and thusly put <searchdir:ucm> at each place.  This is
rather cumbersome.

This patch makes the UCM parser to set the default include path, so
that each profile no longer needs to set searchdir.  All the
<searchdir:ucm> lines currently found in the profiles are removed
gracefully, too.

For the needed implementation, a new helper,
_snd_config_load_with_include() is introduced.  It's not exported,
only for the use inside alsa-lib.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2018-11-28 16:25:41 +01:00
parent d48adc2a20
commit c9fcf98369
23 changed files with 41 additions and 25 deletions
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32
src/conf.c
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@ -1832,7 +1832,8 @@ int snd_config_top(snd_config_t **config)
return _snd_config_make(config, 0, SND_CONFIG_TYPE_COMPOUND);
}
static int snd_config_load1(snd_config_t *config, snd_input_t *in, int override)
static int snd_config_load1(snd_config_t *config, snd_input_t *in, int override,
char *default_include_path)
{
int err;
input_t input;
@ -1847,6 +1848,11 @@ static int snd_config_load1(snd_config_t *config, snd_input_t *in, int override)
fd->column = 0;
fd->next = NULL;
INIT_LIST_HEAD(&fd->include_paths);
if (default_include_path) {
err = add_include_path(fd, default_include_path);
if (err < 0)
goto _end;
}
input.current = fd;
input.unget = 0;
err = parse_defs(config, &input, 0, override);
@ -1915,9 +1921,29 @@ static int snd_config_load1(snd_config_t *config, snd_input_t *in, int override)
*/
int snd_config_load(snd_config_t *config, snd_input_t *in)
{
return snd_config_load1(config, in, 0);
return snd_config_load1(config, in, 0, NULL);
}
#ifndef DOC_HIDDEN
/* load config with the default include path; used internally for UCM parser */
int _snd_config_load_with_include(snd_config_t *config, snd_input_t *in,
const char *default_include_path)
{
int err;
char *s = NULL;
if (default_include_path) {
s = strdup(default_include_path);
if (!s)
return -ENOMEM;
}
err = snd_config_load1(config, in, 0, s);
if (err < 0)
free(s);
return err;
}
#endif
/**
* \brief Loads a configuration tree and overrides existing configuration nodes.
* \param config Handle to a top level configuration node.
@ -1930,7 +1956,7 @@ int snd_config_load(snd_config_t *config, snd_input_t *in)
*/
int snd_config_load_override(snd_config_t *config, snd_input_t *in)
{
return snd_config_load1(config, in, 1);
return snd_config_load1(config, in, 1, NULL);
}
/**