#!/usr/bin/env bash set -e # Ensure the ~/.local/bin directory exists so we can download things into it.LOCAL_BIN="$HOME/.local/bin"mkdir -p "$LOCAL_BIN" # Extract the short commit baked into the linuxdeploy AppImage.appimage_commit() {  "$1" --version 2>&1 | grep -oE "git commit ID [0-9a-f]{7,40}" | cut -d' ' -f4} # A helper function to download an architecture-dependent AppImage and install# it in ~/.local/bin.## Usage:#   download_appimage $BINARY_NAME $VERSION $COMMIT $REPO_URL## Args:#   BINARY_NAME: The name of the AppImage-bundled binary we want to download,#                e.g.: "linuxdeploy".#   VERSION:     The upstream release tag.#   COMMIT:      The (short) commit SHA the release tag points at; used to#                verify the cached binary matches the pinned version.#   REPO_URL:    The URL of the GitHub repository hosting the release.download_appimage() {  BINARY_NAME="$1"  VERSION="$2"  COMMIT="$3"  REPO_URL="$4"   APPIMAGE_NAME="$BINARY_NAME-$(uname -m).AppImage"  APPIMAGE_PATH="$LOCAL_BIN/$APPIMAGE_NAME"   if [ -x "$APPIMAGE_PATH" ] && [ "$(appimage_commit "$APPIMAGE_PATH")" = "$COMMIT" ]; then    echo "✅ Found $APPIMAGE_NAME in $LOCAL_BIN."  else    APPIMAGE_RELEASE_URL="$REPO_URL/releases/download/$VERSION/$APPIMAGE_NAME"    echo "⬇️ Downloading $APPIMAGE_RELEASE_URL..."    curl -fL "$APPIMAGE_RELEASE_URL" --output "$APPIMAGE_PATH"    chmod +x "$APPIMAGE_PATH"  fi   # Create a symlink so we can invoke it like a normal binary.  ln -sf "$APPIMAGE_PATH" "$LOCAL_BIN/$BINARY_NAME"} # Install linuxdeploy, a helper for constructing an AppDir (and then invoking# appimagetool).download_appimage "linuxdeploy" "1-alpha-20251107-1" "cc7b864" \  "https://github.com/linuxdeploy/linuxdeploy" if [ ! -x "$(which linuxdeploy)" ]; then  echo -e "⚠️  ${red}Please make sure that \"$LOCAL_BIN\" is on your PATH, otherwise some scripts may not work.${reset}"fi