apt-upgrades: use injected properties

See: #132

apt-upgrades/README.md

@@ -41,15 +41,16 @@ Instead of using `signal=1` in the configuration, you can use `interval=3600`
 to have the script execute every hour.
 This method avoids the usage of apt/dpkg hooks.
 
-# Options
-
-```
-Usage: apt-upgrades [-s pending_symbol] [-o] [-c pending_color] [-N|-n nonpending_color] [-h]
-Options:
--s  Specify a refresh symbol. Default: "\uf021 "
--o  Show refresh symbol only, but no numbers.
--c  Color when upgrade is pending. Default:  #00FF00
--n  Color when no upgrade is pending. Default: #FFFFFF
--N  Only display text if upgrade is pending (supercedes -n)
--h  Show this help text
+# Config
+
+```INI
+[apt-upgrades]
+command=$SCRIPT_DIR/apt-upgrades
+signal=1
+interval=once
+#PENDING_SYMBOL="\uf021 "
+#SYMBOL_ONLY=0
+#ALWAYS_PRINT=1
+#PENDING_COLOR="#00FF00"
+#NONPENDING_COLOR="#FFFFFF"
 ```

apt-upgrades/apt-upgrades

@@ -6,17 +6,17 @@
 # i3blocks blocklet script to display pending system upgrades 
 
 # FontAwesome refresh symbol, change if you do not want to install FontAwesome
-PENDING_SYMBOL="\uf021 "
+PENDING_SYMBOL=${PENDING_SYMBOL:-"\uf021 "}
 
 # By default, show both the symbol and the numbers
-SYMBOL_ONLY=0
+SYMBOL_ONLY=${SYMBOL_ONLY:-0}
 
 # By default, show something when no upgrades are pending
-ALWAYS_PRINT=1
+ALWAYS_PRINT=${ALWAYS_PRINT:-1}
 
 # Colors for when there is/isn't a pending upgrade
-PENDING_COLOR="#00FF00"
-NONPENDING_COLOR="#FFFFFF"
+PENDING_COLOR=${PENDING_COLOR:-"#00FF00"}
+NONPENDING_COLOR=${NONPENDING_COLOR:-"#FFFFFF"}
 
 while getopts s:oc:n:Nh opt; do
     case "$opt" in