[PATCH 2/4] erofs-utils: lib: unify all identical compressor print function

[Gao Xiang]

On 2023/6/9 16:50, Guo Xuenan via Linux-erofs wrote:
> {dump,fsck}.erofs use the same compressor print function,
> available_compressors means which algothrims are currently
> supported by binary tools.
> supported_compressors including all algothrims that are ready
> for erofs.
> 
> Signed-off-by: Guo Xuenan <guoxuenan at huawei.com>
> ---
>   fsck/main.c              | 15 +-----------
>   include/erofs/compress.h |  3 ++-
>   lib/compressor.c         | 51 ++++++++++++++++++++++++++--------------
>   mkfs/main.c              | 15 +-----------
>   4 files changed, 38 insertions(+), 46 deletions(-)
> 
> diff --git a/fsck/main.c b/fsck/main.c
> index f816bec..978d198 100644
> --- a/fsck/main.c
> +++ b/fsck/main.c
> @@ -49,19 +49,6 @@ static struct option long_options[] = {
>   	{0, 0, 0, 0},
>   };
>   
> -static void print_available_decompressors(FILE *f, const char *delim)
> -{
> -	unsigned int i = 0;
> -	const char *s;
> -
> -	while ((s = z_erofs_list_available_compressors(i)) != NULL) {
> -		if (i++)
> -			fputs(delim, f);
> -		fputs(s, f);
> -	}
> -	fputc('\n', f);
> -}
> -
>   static void usage(void)
>   {
>   	fputs("usage: [options] IMAGE\n\n"
> @@ -84,7 +71,7 @@ static void usage(void)
>   	      " --no-preserve-owner    extract as yourself\n"
>   	      " --no-preserve-perms    apply user's umask when extracting permissions\n"
>   	      "\nSupported algorithms are: ", stderr);
> -	print_available_decompressors(stderr, ", ");
> +	zerofs_print_available_compressors(stderr);

It'd be better to keep z_erofs for compression side.