mss: treewide: add a solution to hard-coded paths

* A modpath defined by magisk itself will be injected on top of our binary and common scripts

* This way we can avoid hard-coding paths and thus, potentional breaking changes to the magisk module structure in the future

Signed-off-by: chickendrop89 <[email protected]>

common.sh

@@ -13,7 +13,6 @@
 
 # Copyright (C) 2024  chickendrop89
 
-export MODPATH="/data/adb/modules/magisk-swapspace"
 export SWAPPROP="$MODPATH/swap.prop"
 export SWAPFILE="$MODPATH/swap"
 

common/install.sh

@@ -0,0 +1,12 @@
+#!/system/bin/sh
+
+# Strip _update from current MODPATH
+INJECTED_MODPATH="${MODPATH//_update/}"
+
+# Insert the variable at the beginning of a file
+insert_variable() {
+  sed -i "1i export MODPATH=$INJECTED_MODPATH" "$1"
+}
+
+insert_variable "$MODPATH/system/bin/magiskswap" # Main binary
+insert_variable "$MODPATH/common.sh" # Common functions

service.sh

@@ -19,7 +19,7 @@
 resetprop -w sys.boot_completed 0
 
 # Import common functions from file
-. "/data/adb/modules/magisk-swapspace/common.sh"
+. "$MODPATH/common.sh"
 
 SWAPPINESS_PROP="$(readProp SWAPPINESS)"
 VFS_CACHE_PRESSURE_PROP="$(readProp VFS-CACHE-PRESSURE)"

system/bin/magiskswap

@@ -20,7 +20,7 @@ VALUE=$2;
 OPTIONALVALUE="$3";
 
 # Import common functions from file
-. "/data/adb/modules/magisk-swapspace/common.sh";
+. "$MODPATH/common.sh";
 
 # Abort - Print message and exit
 abort(){