From e70803385db49e150d45f8a425161983f6d8dc9d Mon Sep 17 00:00:00 2001
From: Paradigm0001 <46477191+Paradigm0001@users.noreply.github.com>
Date: Tue, 31 Mar 2020 11:52:13 +0000
Subject: [PATCH 1/4] Update inverter.sh

Removed unnecessary if statement and unnecessary /dev/null redirect on line 19
Line 26 can use argless printf rather than echo -n
Error verbose prints in red and to STDERR rather than to STDOUT
Textually replaced compton with picom where applicable.
Removed unnecessary semicolons after exit commands

I might've missed/screwed something but lets hope that isnt the case :sunglasses:
---
 dbus-examples/inverter.sh | 43 +++++++++++++++++++++------------------
 1 file changed, 23 insertions(+), 20 deletions(-)

diff --git a/dbus-examples/inverter.sh b/dbus-examples/inverter.sh
index 5e31508..8475ac8 100755
--- a/dbus-examples/inverter.sh
+++ b/dbus-examples/inverter.sh
@@ -1,38 +1,41 @@
 #!/bin/sh
 
+# == Declare stderr function ===
+
+stderr() {
+  printf "\033[1;31m%s\n\033[0m" "$@" >&2
+}
+
 # === Verify `compton --dbus` status ===
 
-if [ -z "`dbus-send --session --dest=org.freedesktop.DBus --type=method_call --print-reply /org/freedesktop/DBus org.freedesktop.DBus.ListNames | grep compton`" ]; then
-  echo "compton DBus interface unavailable"
-  if [ -n "`pgrep picom`" ]; then
-    echo "compton running without dbus interface"
-    #killall compton & # Causes all windows to flicker away and come back ugly.
+if [ -z "$(dbus-send --session --dest=org.freedesktop.DBus --type=method_call --print-reply /org/freedesktop/DBus org.freedesktop.DBus.ListNames | grep compton)" ]; then
+  stderr "compton DBus interface unavailable"
+  if [ -n "$(pgrep picom)" ]; then
+    stderr "picom running without dbus interface"
+    #killall picom & # Causes all windows to flicker away and come back ugly.
     #compton --dbus & # Causes all windows to flicker away and come back beautiful
   else
-    echo "compton not running"
+    stderr "picom not running"
   fi
-  exit 1;
+  exit 1
 fi
 
 # === Setup sed ===
 
-if [ -z "$SED" ]; then
-  SED="sed"
-  command -v gsed > /dev/null && SED="gsed"
-fi
+SED="${SED:-$(command -v gsed || printf 'sed')}"
 
 # === Get connection parameters ===
 
-dpy=$(echo -n "$DISPLAY" | tr -c '[:alnum:]' _)
+dpy=$(printf "$DISPLAY" | tr -c '[:alnum:]' _)
 
 if [ -z "$dpy" ]; then
   echo "Cannot find display."
-  exit 1;
+  exit 1
 fi
 
 service="com.github.chjj.compton.${dpy}"
 interface="com.github.chjj.compton"
-compton_dbus="dbus-send --print-reply --dest="${service}" / "${interface}"."
+picom_dbus="dbus-send --print-reply --dest="${service}" / "${interface}"."
 type_win='uint32'
 type_enum='uint32'
 
@@ -43,7 +46,7 @@ if [ -z "$1" -o "$1" = "selected" ]; then
   window=$(xwininfo -frame | sed -n 's/^xwininfo: Window id: \(0x[[:xdigit:]][[:xdigit:]]*\).*/\1/p') # Select window by mouse
 elif [ "$1" = "focused" ]; then
   # Ensure we are tracking focus
-  window=$(${compton_dbus}find_win string:focused | $SED -n 's/^[[:space:]]*'${type_win}'[[:space:]]*\([[:digit:]]*\).*/\1/p') # Query compton for the active window
+  window=$(${picom_dbus}find_win string:focused | $SED -n 's/^[[:space:]]*'${type_win}'[[:space:]]*\([[:digit:]]*\).*/\1/p') # Query compton for the active window
 elif echo "$1" | grep -Eiq '^([[:digit:]][[:digit:]]*|0x[[:xdigit:]][[:xdigit:]]*)$'; then
   window="$1" # Accept user-specified window-id if the format is correct
 else
@@ -52,15 +55,15 @@ fi
 
 # Color invert the selected or focused window
 if [ -n "$window" ]; then
-  invert_status="$(${compton_dbus}win_get "${type_win}:${window}" string:invert_color | $SED -n 's/^[[:space:]]*boolean[[:space:]]*\([[:alpha:]]*\).*/\1/p')"
+  invert_status="$(${picom_dbus}win_get "${type_win}:${window}" string:invert_color | $SED -n 's/^[[:space:]]*boolean[[:space:]]*\([[:alpha:]]*\).*/\1/p')"
   if [ "$invert_status" = true ]; then
     invert=0 # Set the window to have normal color
   else
     invert=1 # Set the window to have inverted color
   fi
-  ${compton_dbus}win_set "${type_win}:${window}" string:invert_color_force "${type_enum}:${invert}" &
+  ${picom_dbus}win_set "${type_win}:${window}" string:invert_color_force "${type_enum}:${invert}" &
 else
-  echo "Cannot find $1 window."
-  exit 1;
+  stderr "Cannot find $1 window."
+  exit 1
 fi
-exit 0;
+exit 0

From 32e0d1c095d0df1bd444a8ed38f4e7b81711b4f9 Mon Sep 17 00:00:00 2001
From: Paradigm0001 <46477191+Paradigm0001@users.noreply.github.com>
Date: Tue, 31 Mar 2020 11:57:05 +0000
Subject: [PATCH 2/4] Update inverter.sh

Missed a textual remnant of compton, whoops
---
 dbus-examples/inverter.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dbus-examples/inverter.sh b/dbus-examples/inverter.sh
index 8475ac8..3c210c8 100755
--- a/dbus-examples/inverter.sh
+++ b/dbus-examples/inverter.sh
@@ -9,7 +9,7 @@ stderr() {
 # === Verify `compton --dbus` status ===
 
 if [ -z "$(dbus-send --session --dest=org.freedesktop.DBus --type=method_call --print-reply /org/freedesktop/DBus org.freedesktop.DBus.ListNames | grep compton)" ]; then
-  stderr "compton DBus interface unavailable"
+  stderr "picom DBus interface unavailable"
   if [ -n "$(pgrep picom)" ]; then
     stderr "picom running without dbus interface"
     #killall picom & # Causes all windows to flicker away and come back ugly.

From 7f52a4a582ae8d58dd9883b6efb6585fbf76f573 Mon Sep 17 00:00:00 2001
From: Paradigm0001 <46477191+Paradigm0001@users.noreply.github.com>
Date: Tue, 31 Mar 2020 12:02:28 +0000
Subject: [PATCH 3/4] Update inverter.sh

Missed a few more comptons in comments
---
 dbus-examples/inverter.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/dbus-examples/inverter.sh b/dbus-examples/inverter.sh
index 3c210c8..abe6e13 100755
--- a/dbus-examples/inverter.sh
+++ b/dbus-examples/inverter.sh
@@ -6,14 +6,14 @@ stderr() {
   printf "\033[1;31m%s\n\033[0m" "$@" >&2
 }
 
-# === Verify `compton --dbus` status ===
+# === Verify `picom --dbus` status ===
 
 if [ -z "$(dbus-send --session --dest=org.freedesktop.DBus --type=method_call --print-reply /org/freedesktop/DBus org.freedesktop.DBus.ListNames | grep compton)" ]; then
   stderr "picom DBus interface unavailable"
   if [ -n "$(pgrep picom)" ]; then
     stderr "picom running without dbus interface"
     #killall picom & # Causes all windows to flicker away and come back ugly.
-    #compton --dbus & # Causes all windows to flicker away and come back beautiful
+    #picom --dbus & # Causes all windows to flicker away and come back beautiful
   else
     stderr "picom not running"
   fi
@@ -46,7 +46,7 @@ if [ -z "$1" -o "$1" = "selected" ]; then
   window=$(xwininfo -frame | sed -n 's/^xwininfo: Window id: \(0x[[:xdigit:]][[:xdigit:]]*\).*/\1/p') # Select window by mouse
 elif [ "$1" = "focused" ]; then
   # Ensure we are tracking focus
-  window=$(${picom_dbus}find_win string:focused | $SED -n 's/^[[:space:]]*'${type_win}'[[:space:]]*\([[:digit:]]*\).*/\1/p') # Query compton for the active window
+  window=$(${picom_dbus}find_win string:focused | $SED -n 's/^[[:space:]]*'${type_win}'[[:space:]]*\([[:digit:]]*\).*/\1/p') # Query picom for the active window
 elif echo "$1" | grep -Eiq '^([[:digit:]][[:digit:]]*|0x[[:xdigit:]][[:xdigit:]]*)$'; then
   window="$1" # Accept user-specified window-id if the format is correct
 else

From 1639605306c51b6735a4d9b1bba6b8c9da9d2a9c Mon Sep 17 00:00:00 2001
From: Paradigm0001 <46477191+Paradigm0001@users.noreply.github.com>
Date: Wed, 1 Apr 2020 04:50:03 +0000
Subject: [PATCH 4/4] Update inverter.sh

Error verbose for lack of X Display variable now uses stderr function
---
 dbus-examples/inverter.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dbus-examples/inverter.sh b/dbus-examples/inverter.sh
index abe6e13..e13cb2d 100755
--- a/dbus-examples/inverter.sh
+++ b/dbus-examples/inverter.sh
@@ -29,7 +29,7 @@ SED="${SED:-$(command -v gsed || printf 'sed')}"
 dpy=$(printf "$DISPLAY" | tr -c '[:alnum:]' _)
 
 if [ -z "$dpy" ]; then
-  echo "Cannot find display."
+  stderr "Cannot find display."
   exit 1
 fi