[PATCH] discover/kboot-parser: Recognise 'default' parameter

[Samuel Mendoza-Jonas]

On Mon, 2018-08-27 at 14:34 +1000, Samuel Mendoza-Jonas wrote:
> The kboot parser doesn't set a default option. Change it so that if we
> see the 'default' parameter we match against this value when deciding if
> an option should be set as default.
> 
> For example:
> 
> 	default=linux
> 	linux='/vmlinux initrd=/initrd arg1=value1 arg2'
> 
> Signed-off-by: Samuel Mendoza-Jonas <sam at mendozajonas.com>
> ---
>  discover/kboot-parser.c          |  6 +++++-
>  test/parser/Makefile.am          |  1 +
>  test/parser/test-kboot-default.c | 30 ++++++++++++++++++++++++++++++
>  3 files changed, 36 insertions(+), 1 deletion(-)
>  create mode 100644 test/parser/test-kboot-default.c

Merged as 93065a40

> 
> diff --git a/discover/kboot-parser.c b/discover/kboot-parser.c
> index e4b36b62..4c68cd4d 100644
> --- a/discover/kboot-parser.c
> +++ b/discover/kboot-parser.c
> @@ -126,6 +126,10 @@ out_add:
>  				" dtb=%s", dtb);
>  	}
>  
> +	if (conf_get_global_option(conf, "default"))
> +		opt->is_default = streq(opt->name,
> +				conf_get_global_option(conf, "default"));
> +
>  	conf_strip_str(opt->boot_args);
>  	conf_strip_str(opt->description);
>  
> @@ -137,6 +141,7 @@ static struct conf_global_option kboot_global_options[] = {
>  	{ .name = "initrd" },
>  	{ .name = "root" },
>  	{ .name = "video" },
> +	{ .name = "default" },
>  	{ .name = NULL }
>  };
>  
> @@ -157,7 +162,6 @@ static const char *const kboot_conf_files[] = {
>  };
>  
>  static const char *const kboot_ignored_names[] = {
> -	"default",
>  	"delay",
>  	"message",
>  	"timeout",
> diff --git a/test/parser/Makefile.am b/test/parser/Makefile.am
> index 17321580..363933e3 100644
> --- a/test/parser/Makefile.am
> +++ b/test/parser/Makefile.am
> @@ -47,6 +47,7 @@ parser_TESTS = \
>  	test/parser/test-grub2-blscfg-opts-config \
>  	test/parser/test-grub2-blscfg-opts-grubenv \
>  	test/parser/test-kboot-single \
> +	test/parser/test-kboot-default \
>  	test/parser/test-yaboot-empty \
>  	test/parser/test-yaboot-single \
>  	test/parser/test-yaboot-partition \
> diff --git a/test/parser/test-kboot-default.c b/test/parser/test-kboot-default.c
> new file mode 100644
> index 00000000..a921f63d
> --- /dev/null
> +++ b/test/parser/test-kboot-default.c
> @@ -0,0 +1,30 @@
> +
> +#include "parser-test.h"
> +
> +static const char config[] =
> +	"default=linux\n"
> +	"linux='/vmlinux initrd=/initrd arg1=value1 arg2'\n"
> +	"hdd='/vmlinux initrd=/initrd'\n";
> +
> +void run_test(struct parser_test *test)
> +{
> +	struct discover_boot_option *opt;
> +	struct discover_context *ctx;
> +
> +	test_read_conf_data(test, "/kboot.conf", config);
> +
> +	test_run_parser(test, "kboot");
> +
> +	ctx = test->ctx;
> +
> +	check_boot_option_count(ctx, 2);
> +	opt = get_boot_option(ctx, 0);
> +
> +	check_name(opt, "linux");
> +	check_resolved_local_resource(opt->boot_image, ctx->device, "/vmlinux");
> +	check_resolved_local_resource(opt->initrd, ctx->device, "/initrd");
> +
> +	check_args(opt, "arg1=value1 arg2");
> +
> +	check_is_default(opt);
> +}