From 24457ca3385bf3b09c09103788096edb4989bd25 Mon Sep 17 00:00:00 2001
From: John Mertz <john.mertz@mailcleaner.net>
Date: Thu, 12 Aug 2021 17:27:40 -0400
Subject: [PATCH] Add sock and display id to allow non-attached execution

SWAYSOCK is now static so it can be referenced by all of the swaymsg
commands.

waybar now includes a static WAYLAND_DISPLAY declaration.

This allows for recovery/configuration via SSH as well as groundwork for
udev (un)docking rules.
---
 sway/displays.pl | 25 +++++++++++++++----------
 1 file changed, 15 insertions(+), 10 deletions(-)

diff --git a/sway/displays.pl b/sway/displays.pl
index bee2afe..cad1074 100755
--- a/sway/displays.pl
+++ b/sway/displays.pl
@@ -30,6 +30,8 @@
 # "width": __WIDTH__ (optional)
 my $waybar_template = "$ENV{'HOME'}/.config/waybar/config.template";
 
+my $swaysock = "/home/jpm/.config/sway-ipc.sock";
+
 # Path to actual config file generated from template
 my $waybar_config = "$ENV{'HOME'}/.config/waybar/config";
 
@@ -206,7 +208,7 @@ close($fh);
 # Fetch connected displays
 use JSON::XS;
 my $json = JSON::XS->new();
-my $displays_raw = `swaymsg -t get_outputs --raw`;
+my $displays_raw = `swaymsg -s $swaysock -t get_outputs --raw`;
 my $displays = $json->decode($displays_raw);
 
 # For each connected display, collect the desired settings for enabled
@@ -252,7 +254,8 @@ foreach my $output (keys %$on) {
 	}
 }
 if (scalar(@unavailable)) {
-	die "Config requires unavailable output(s) " . join(', ', @unavailable) . "\n";
+	die "Config requires unavailable output(s) " . join(', ', @unavailable)
+		. "\n";
 }
 
 # Skip enabling/disabling displays if only running waybar (re)start
@@ -262,13 +265,13 @@ unless ($waybar_only) {
         foreach (@off) {
 
                 # Sway returns status as JSON
-                my $res_raw = `sway output $_ disable`;
+                my $res_raw = `swaymsg -s $swaysock output $_ disable`;
                 my $res = $json->decode($res_raw)->[0];
 
                 # If failed, print to STDERR
                 unless ($res->{success}) {
-                        print STDERR "Error ($res->{error}) in command 'sway"
-                                . "output $_ disable'\n";
+                        print STDERR "Error ($res->{error}) in command 'swaymsg"
+                                . " -s $swaysock output $_ disable'\n";
                 }
 
         }
@@ -316,7 +319,8 @@ foreach my $out (keys %$on) {
         push @active, $on->{$out}->{output};
 	unless ($waybar_only) {
                 # Build command, starting by enabling and powering on
-                my $cmd = "sway output $on->{$out}->{output} enable dpms on";
+                my $cmd = "swaymsg -s $swaysock output $on->{$out}->{output}" .
+			" enable dpms on";
 
                 # If additional options are provided, add them to command
                 if (defined $on->{$out}->{rotate}) {
@@ -328,7 +332,8 @@ foreach my $out (keys %$on) {
                 if (defined $on->{$out}->{width} &&
                         defined $on->{$out}->{height} )
                 {
-                        $cmd .= " mode $on->{$out}->{width}x$on->{$out}->{height}";
+                        $cmd .= " mode $on->{$out}->{width}x" .
+				"$on->{$out}->{height}";
                 }
 
                 # Sway returns status as JSON
@@ -337,7 +342,8 @@ foreach my $out (keys %$on) {
 
                 # If failed, print to STDERR
                 unless ($res->{success}) {
-                        print STDERR "Error ($res->{error}) in command '$cmd'\n";
+                        print STDERR "Error ($res->{error}) in command " .
+				"'$cmd'\n";
                 }
         }
 
@@ -371,7 +377,6 @@ open($fh, '>', $active_outputs);
 print $fh join(' ', @active);
 close($fh);
 
-
 # Restore array formatting
 $waybar = '[' . $waybar . ']';
 
@@ -385,5 +390,5 @@ unless ($pid) {
         open ($fh, '>', $waybar_config);
         print $fh $waybar;
         close $fh;
-        `nohup waybar --config=$waybar_config >> waybar.log`;
+        `WAYLAND_DISPLAY=wayland-1 nohup waybar --config=$waybar_config >> waybar.log`;
 }