Add a script for updating icon

README.md

@@ -25,6 +25,16 @@ A series of `*.icns` files are provided for macOS 15 and earlier, and a
 
 ## Usage
 
+### TLDR
+
+Open Terminal.app (or any other terminal application you have), copy the command below, and press Enter.
+
+``` shell
+curl -fsSL https://github.com/jimeh/emacs-liquid-glass-icons/raw/refs/heads/main/patch-emacs-icon.sh | bash -s -- LG1 /Applications/Emacs.app
+```
+
+(Change the `LG1` argument to your preferred icon [available options: `LG1`, `LG2`, or `LG3`], and update `/Applications/Emacs.app` to your Emacs installation path if it is not in the standard location.)
+
 ### macOS 15 and earlier
 
 Grab the `.icns` file you prefer from the `Resources` directory, and replace

patch-emacs-icon.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+
+if [[ ! "$1" =~ ^LG[123]$ ]]; then
+  echo "Usage: $0 [LG1|LG2|LG3]"
+  exit 1
+fi
+
+# Download file to a tmp dir
+TMPDIR=$(mktemp -d) && cd "$TMPDIR" || exit
+curl -LO https://github.com/jimeh/emacs-liquid-glass-icons/raw/refs/heads/main/Resources/Assets.car
+curl -Lo Emacs.icns "https://github.com/jimeh/emacs-liquid-glass-icons/raw/refs/heads/main/Resources/Emacs$1-Default.icns"
+
+APPDIR="${2:-/Applications/Emacs.app}"
+
+# Get realpath if it's a macOS alias,
+# taken from https://stackoverflow.com/a/1330366
+if [ -f "$APPDIR" ] && [ ! -L "$APPDIR" ]; then
+    exec 6>&2
+    exec 2>/dev/null
+    APPDIR=$(osascript << EOF
+tell application "Finder"
+set theItem to (POSIX file "${APPDIR}") as alias
+if the kind of theItem is "alias" then
+get the posix path of ((original item of theItem) as text)
+end if
+end tell
+EOF
+)
+fi
+
+# Copy 
+cp -f Assets.car Emacs.icns "$APPDIR/Contents/Resources/"
+
+# Update plist
+ICON_NAME="Emacs$1"
+PLIST="$APPDIR/Contents/Info.plist"
+/usr/libexec/PlistBuddy -c "Set :CFBundleIconName $ICON_NAME" "$PLIST" 2>/dev/null \
+    || /usr/libexec/PlistBuddy -c "Add :CFBundleIconName string $ICON_NAME" "$PLIST"
+
+# Clear icon cache and restart Dock to show our new icon
+rm /var/folders/*/*/*/com.apple.dock.iconcache
+rm -rf /var/folders/*/*/*/com.apple.iconservices*
+killall Dock
+
+echo "If the new Emacs icon in the Dock has not changed, restart Emacs to take effect."