From 12c8cf5bf6dd0d0e77ff78260b603cdaa1731a65 Mon Sep 17 00:00:00 2001 From: Christoph Gysin Date: Sat, 28 Nov 2015 16:18:54 +0200 Subject: [PATCH] swaygrab: Add --help option that prints usage --- swaygrab.1.txt | 3 +++ swaygrab/main.c | 4 +++- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/swaygrab.1.txt b/swaygrab.1.txt index 009fbe7e..cd4b8bd2 100644 --- a/swaygrab.1.txt +++ b/swaygrab.1.txt @@ -20,6 +20,9 @@ ImageMagick convert for processing. Options ------- +*-h, --help*:: + Show help message and quit. + *-c, \--capture*:: Captures multiple frames as video and passes them into ffmpeg. Continues until you send SIGTERM (ctrl+c) to swaygrab. diff --git a/swaygrab/main.c b/swaygrab/main.c index 90d118e2..ae17155f 100644 --- a/swaygrab/main.c +++ b/swaygrab/main.c @@ -127,6 +127,7 @@ int main(int argc, char **argv) { init_log(L_INFO); static struct option long_options[] = { + {"help", no_argument, NULL, 'h'}, {"capture", no_argument, &capture, 'c'}, {"version", no_argument, NULL, 'v'}, {"socket", required_argument, NULL, 's'}, @@ -138,6 +139,7 @@ int main(int argc, char **argv) { const char *usage = "Usage: swaygrab [options] [file]\n" "\n" + " -h, --help Show help message and quit.\n" " -c, --capture Capture video.\n" " -v, --version Show the version number and quit.\n" " -s, --socket Use the specified socket.\n" @@ -147,7 +149,7 @@ int main(int argc, char **argv) { int c; while (1) { int option_index = 0; - c = getopt_long(argc, argv, "cvs:r", long_options, &option_index); + c = getopt_long(argc, argv, "hcvs:r", long_options, &option_index); if (c == -1) { break; }