swaymsg: Add --help option that prints usage

2 files changed, 6 insertions, 1 deletions

diff --git a/swaymsg.1.txt b/swaymsg.1.txt
index d832dd17..984780fa 100644
--- a/swaymsg.1.txt
+++ b/swaymsg.1.txt
@@ -17,6 +17,9 @@ Synopsis
 Options
 -------
 
+*-h, --help*::
+        Show help message and quit.
+
 *-q, \--quiet*::
         Sends the IPC message but does not print the response from sway.
 
diff --git a/swaymsg/main.c b/swaymsg/main.c
index 2f2e843a..8f91dc55 100644
--- a/swaymsg/main.c
+++ b/swaymsg/main.c
@@ -23,6 +23,7 @@ int main(int argc, char **argv) {
         init_log(L_INFO);
 
         static struct option long_options[] = {
+                {"help", no_argument, NULL, 'h'},
                 {"quiet", no_argument, &quiet, 'q'},
                 {"version", no_argument, NULL, 'v'},
                 {"socket", required_argument, NULL, 's'},
@@ -33,6 +34,7 @@ int main(int argc, char **argv) {
         const char *usage =
                 "Usage: swaymsg [options] [message]\n"
                 "\n"
+                "  -h, --help             Show help message and quit.\n"
                 "  -q, --quiet            Be quiet.\n"
                 "  -v, --version          Show the version number and quit.\n"
                 "  -s, --socket <socket>  Use the specified socket.\n"
@@ -41,7 +43,7 @@ int main(int argc, char **argv) {
         int c;
         while (1) {
                 int option_index = 0;
-                c = getopt_long(argc, argv, "qvs:t:", long_options, &option_index);
+                c = getopt_long(argc, argv, "hqvs:t:", long_options, &option_index);
                 if (c == -1) {
                         break;
                 }