swaygrab: Add --help option that prints usage
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@ -20,6 +20,9 @@ ImageMagick convert for processing.
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Options
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-------
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*-h, --help*::
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Show help message and quit.
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*-c, \--capture*::
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Captures multiple frames as video and passes them into ffmpeg. Continues until
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you send SIGTERM (ctrl+c) to swaygrab.
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@ -127,6 +127,7 @@ int main(int argc, char **argv) {
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init_log(L_INFO);
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static struct option long_options[] = {
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{"help", no_argument, NULL, 'h'},
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{"capture", no_argument, &capture, 'c'},
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{"version", no_argument, NULL, 'v'},
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{"socket", required_argument, NULL, 's'},
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@ -138,6 +139,7 @@ int main(int argc, char **argv) {
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const char *usage =
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"Usage: swaygrab [options] <output> [file]\n"
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"\n"
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" -h, --help Show help message and quit.\n"
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" -c, --capture Capture video.\n"
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" -v, --version Show the version number and quit.\n"
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" -s, --socket <socket> Use the specified socket.\n"
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@ -147,7 +149,7 @@ int main(int argc, char **argv) {
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int c;
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while (1) {
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int option_index = 0;
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c = getopt_long(argc, argv, "cvs:r", long_options, &option_index);
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c = getopt_long(argc, argv, "hcvs:r", long_options, &option_index);
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if (c == -1) {
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break;
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}
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