build: improve update logic

install.sh

@@ -1,5 +1,13 @@
 #!/usr/bin/env bash
 
+# Read arguments
+ARG_UPDATE=false
+for arg in "$@"; do
+  if [ "$arg" = "update" ]; then
+    ARG_UPDATE=true
+  fi
+done
+
 # Determine system architecture
 echo -e "Determining system architecture..."
 
@@ -12,57 +20,39 @@ case "$(uname -m)" in
         ARCH="x64"
         ;;
     *)
-        echo "Architecture $(uname -m) running $BITS-bit operating system is not supported."
-        exit 1
+        { echo "Architecture $(uname -m) running $BITS-bit operating system is not supported."; exit 1; }
         ;;
 esac
 
-if [ "$BITS" -ne 64 ]; then
-    echo "Architecture $ARCH running $BITS-bit operating system is not supported."
-    exit 1
-fi
-
+[ "$BITS" -eq 64 ] || { echo "Architecture $ARCH running $BITS-bit operating system is not supported."; exit 1; }
 echo "Architecture $ARCH running $BITS-bit operating system is supported."
 
 # Download the latest .deb package
 echo -e "\nDownloading the latest release..."
 
+TMP_DIR=$(mktemp -d)
 DEB_URL=$(wget -qO- https://api.github.com/repos/leukipp/touchkio/releases/latest | \
 grep -o "\"browser_download_url\": \"[^\"]*_${ARCH}\.deb\"" | \
 sed 's/"browser_download_url": "//;s/"//g')
-
-TMP_DIR=$(mktemp -d)
 DEB_PATH="${TMP_DIR}/$(basename "$DEB_URL")"
 chmod 755 "$TMP_DIR"
 
-if [ -z "$DEB_URL" ]; then
-    echo "Download url for .deb file not found."
-    exit 1
-fi
-
-if ! wget --show-progress -q -O "$DEB_PATH" "$DEB_URL"; then
-    echo "Failed to download the .deb file."
-    exit 1
-fi
+[ -z "$DEB_URL" ] && { echo "Download url for .deb file not found."; exit 1; }
+wget --show-progress -q -O "$DEB_PATH" "$DEB_URL" || { echo "Failed to download the .deb file."; exit 1; }
 
 # Install the latest .deb package
 echo -e "\nInstalling the latest release..."
 
-if ! command -v apt &> /dev/null; then
-    echo "Package manager apt was not found."
-    exit 1
-fi
-
-if ! sudo apt install "$DEB_PATH"; then
-    echo "Installation of .deb file failed."
-    exit 1
-fi
+command -v apt &> /dev/null || { echo "Package manager apt was not found."; exit 1; }
+sudo apt install -y "$DEB_PATH" || { echo "Installation of .deb file failed."; exit 1; }
 
 # Create the systemd user service
 echo -e "\nCreating systemd user service..."
 
-SERVICE_FILE="$HOME/.config/systemd/user/touchkio.service"
-mkdir -p "$(dirname "$SERVICE_FILE")" || { echo "Failed to create directory for $SERVICE_FILE"; exit 1; }
+SERVICE_NAME="touchkio.service"
+SERVICE_FILE="$HOME/.config/systemd/user/$SERVICE_NAME"
+mkdir -p "$(dirname "$SERVICE_FILE")" || { echo "Failed to create directory for $SERVICE_FILE."; exit 1; }
+
 SERVICE_CONTENT="[Unit]
 Description=TouchKio
 After=graphical.target
@@ -76,20 +66,28 @@ RestartSec=5s
 [Install]
 WantedBy=default.target"
 
+if $ARG_UPDATE; then
+  if systemctl --user --quiet is-active "${SERVICE_NAME}"; then
+    systemctl --user restart "${SERVICE_NAME}"
+    echo "Existing $SERVICE_NAME restarted."
+  else
+    echo "Existing $SERVICE_NAME not running, start touchkio manually."
+  fi
+  exit 0
+fi
+
 SERVICE_CREATE=true
 if [ -f "$SERVICE_FILE" ]; then
     read -p "Service $SERVICE_FILE exists, overwrite? (y/N) " overwrite
-    if [[ ! ${overwrite:-n} == [Yy]* ]]; then
-        SERVICE_CREATE=false
-    fi
+    [[ ${overwrite:-n} == [Yy]* ]] || SERVICE_CREATE=false
 fi
 
-if [ "$SERVICE_CREATE" = true ]; then
-    echo "$SERVICE_CONTENT" > "$SERVICE_FILE" || { echo "Failed to write to $SERVICE_FILE"; exit 1; }
-    systemctl --user enable "$(basename "$SERVICE_FILE")" || { echo "Failed to enable service $SERVICE_FILE"; exit 1; }
-    echo "Service $SERVICE_FILE enabled"
+if $SERVICE_CREATE; then
+    echo "$SERVICE_CONTENT" > "$SERVICE_FILE" || { echo "Failed to write to $SERVICE_FILE."; exit 1; }
+    systemctl --user enable "$(basename "$SERVICE_FILE")" || { echo "Failed to enable service $SERVICE_FILE."; exit 1; }
+    echo "Service $SERVICE_FILE enabled."
 else
-    echo "Service $SERVICE_FILE not created"
+    echo "Service $SERVICE_FILE not created."
 fi
 
 # Export display variables
@@ -97,20 +95,22 @@ echo -e "\nExporting display variables..."
 
 if [ -z "$DISPLAY" ]; then
     export DISPLAY=":0"
-    echo "DISPLAY was not set, defaulting to \"$DISPLAY\""
+    echo "DISPLAY was not set, defaulting to \"$DISPLAY\"."
 else
-    echo "DISPLAY is set to \"$DISPLAY\""
+    echo "DISPLAY is set to \"$DISPLAY\"."
 fi
+
 if [ -z "$WAYLAND_DISPLAY" ]; then
     export WAYLAND_DISPLAY="wayland-0"
-    echo "WAYLAND_DISPLAY was not set, defaulting to \"$WAYLAND_DISPLAY\""
+    echo "WAYLAND_DISPLAY was not set, defaulting to \"$WAYLAND_DISPLAY\"."
 else
-    echo "WAYLAND_DISPLAY is set to \"$WAYLAND_DISPLAY\""
+    echo "WAYLAND_DISPLAY is set to \"$WAYLAND_DISPLAY\"."
 fi
 
 # Start the setup mode
 echo ""
 read -p "Start touchkio setup? (Y/n) " setup
+
 if [[ ${setup:-y} == [Yy]* ]]; then
     echo "/usr/bin/touchkio --setup"
     /usr/bin/touchkio --setup
@@ -118,3 +118,5 @@ else
     echo "/usr/bin/touchkio"
     /usr/bin/touchkio
 fi
+
+exit 0