[hackers] [PATCH slstatus] Add a -1 option flag

From: Daniel Moch <daniel_AT_danielmoch.com>
Date: Mon, 6 Jul 2020 16:25:46 -0400

Allow slstatus to be used by programs that can grab status by calling
an external program on a periodic basis (e.g. tmux)

---
Apologies for the cross-post, but I've realized that hackers is the
correct place to send patches and *not* dev. Feedback and comments
appreciated.
 slstatus.1 | 5 ++++-
 slstatus.c | 9 ++++++---
 2 files changed, 10 insertions(+), 4 deletions(-)
diff --git a/slstatus.1 b/slstatus.1
index da1a99a..d802037 100644
--- a/slstatus.1
+++ b/slstatus.1
_AT_@ -1,4 +1,4 @@
-.Dd 2017-08-10
+.Dd 2020-06-23
 .Dt SLSTATUS 1
 .Os
 .Sh NAME
_AT_@ -7,6 +7,7 @@
 .Sh SYNOPSIS
 .Nm
 .Op Fl s
+.Op Fl 1
 .Sh DESCRIPTION
 .Nm
 is a suckless status monitor for window managers that use WM_NAME (e.g. dwm) or
_AT_@ -18,6 +19,8 @@ outputs to WM_NAME.
 .Bl -tag -width Ds
 .It Fl s
 Write to stdout instead of WM_NAME.
+.It Fl 1
+Write once to stdout and quit.
 .El
 .Sh CUSTOMIZATION
 .Nm
diff --git a/slstatus.c b/slstatus.c
index 96fa5b6..f1f0741 100644
--- a/slstatus.c
+++ b/slstatus.c
_AT_@ -42,7 +42,7 @@ difftimespec(struct timespec *res, struct timespec *a, struct timespec *b)
 static void
 usage(void)
 {
-	die("usage: %s [-s]", argv0);
+	die("usage: %s [-s] [-1]", argv0);
 }
 int
_AT_@ -57,6 +57,9 @@ main(int argc, char *argv[])
 	sflag = 0;
 	ARGBEGIN {
+		case '1':
+			done = 1;
+			/* fallthrough */
 		case 's':
 			sflag = 1;
 			break;
_AT_@ -77,7 +80,7 @@ main(int argc, char *argv[])
 		die("XOpenDisplay: Failed to open display");
 	}
-	while (!done) {
+	do {
 		if (clock_gettime(CLOCK_MONOTONIC, &start) < 0) {
 			die("clock_gettime:");
 		}
_AT_@ -124,7 +127,7 @@ main(int argc, char *argv[])
 				}
 			}
 		}
-	}
+	} while (!done);
 	if (!sflag) {
 		XStoreName(dpy, DefaultRootWindow(dpy), NULL);
--
2.27.0

Received on Mon Jul 06 2020 - 22:25:46 CEST