Properly handle old and new files to be delete.

Author: martacarbone

Taskfile.yml

@@ -118,7 +118,7 @@ tasks:
           set -e
           echo "Runner version set as: {{ .EXAMPLE_VERSION }}"
           TMP_PATH="$(mktemp -d)"
-          DEST_PATH="debian/arduino-app-cli/usr/share/arduino-app-cli/"
+          DEST_PATH="debian/arduino-app-cli/var/lib/arduino-app-cli/"
           echo "Cloning arduino/app-bricks-examples into temporary directory ${TMP_PATH}..."
           git clone --depth 1 --branch "{{ .EXAMPLE_VERSION }}" https://github.com/arduino/app-bricks-examples "${TMP_PATH}"
           rm -rf "${DEST_PATH}/examples"
@@ -165,7 +165,7 @@ tasks:
     cmds:
       - docker build -t adbd -f adbd.Dockerfile .
       - docker rm -f adbd || true
-      - docker run --rm --name adbd -d -p 5555:5555 -p 2222:22 -v $HOME/.arduino-app-cli/examples:/apps adbd
+      - docker run --rm --name adbd -d -p 5555:5555 -p 2222:22 -v /var/lib/arduino-app-cli/examples:/apps adbd
 
   adbd:stop:
     desc: stop adbd

debian/arduino-app-cli/DEBIAN/postinst

@@ -1,10 +1,22 @@
 #!/bin/sh
 
-mkdir /var/cache/arduino-app-cli
-chown -R arduino:arduino /var/cache/arduino-app-cli
-mkdir /home/arduino/.arduino-app-cli
-chown -R arduino:arduino /home/arduino/.arduino-app-cli
+set -e
 
 systemctl enable arduino-app-cli
 systemctl enable arduino-burn-bootloader
 systemctl enable arduino-avahi-serial.service
+
+echo "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX postinst $1 $2"
+
+# The following case will be executed for an upgrade from
+# any version before 0.7.0 (the last version with examples and assets in the home dir)
+if [ "$1" = "configure" ]; then
+    if dpkg --compare-versions "$2" lt "0.7.0"; then
+        echo "Detected upgrade from an older version, delete obsolete examples and assets."
+        OBSOLETE_DIR="home/arduino/.local/share/arduino-app-cli"
+          for i in ${OBSOLETE_DIR}/*; do
+            CACHE_DIR=${OBSOLETE_DIR}/.cache
+            [ -d "CACHE_DIR" ] && rm -r ${CACHE_DIR};
+          done
+    fi
+fi

debian/arduino-app-cli/DEBIAN/postrm

@@ -1,7 +1,21 @@
 #!/bin/sh
+echo "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX postrm $1 $2"
 
-rm -rf /var/cache/arduino-app-cli/*
+set -e
 
 if [ -d /run/systemd/system ]; then
   systemctl daemon-reload
 fi
+
+EXAMPLES_DIR="/var/lib/arduino-app-cli"
+	for i in ${EXAMPLES_DIR}/*; do
+	  CACHE_DIR=${EXAMPLES_DIR}/.cache
+	  [ -d "CACHE_DIR" ] && rm -r ${CACHE_DIR};
+	done
+
+if [ "$1" = "purge" ]; then
+	CONF_DIR="/home/arduino/.config/arduino-app-cli"
+    echo "Purging configuration directory: $CONF_DIR"
+    [ -d "$CONF_DIR" ] && rm -rf "$CONF_DIR"
+fi
+

debian/arduino-app-cli/DEBIAN/preinst

@@ -1,4 +1,5 @@
 #!/bin/sh
+echo "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX preinst $1 $2"
 
 set -e
 
@@ -23,3 +24,6 @@ if ! getent group "$SYSUPGRADE_GROUP" >/dev/null 2>&1; then
     groupadd --system "$SYSUPGRADE_GROUP"
 fi
 usermod -aG "$SYSUPGRADE_GROUP" "$APP_USER"
+
+mkdir -p /home/arduino/.config/arduino-app-cli
+chown -R arduino:arduino /home/arduino/.config/arduino-app-cli

debian/arduino-app-cli/DEBIAN/prerm

@@ -1,13 +1,6 @@
 #!/bin/sh
+echo "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX prerm $1 $2"
 
 systemctl disable arduino-app-cli
 systemctl disable arduino-burn-bootloader
 systemctl disable arduino-avahi-serial.service
-
-OLD_EXAMPLES_DIR="/home/arduino/.local/share/arduino-app-cli/examples"
-
-if [ -d "OLD_EXAMPLES_DIR" ]; then
-	for i in /home/arduino/.local/share/arduino-app-cli/examples/*; do
-		rm -r $i/.cache;
-	done
-fi