282 lines
9.7 KiB
Bash
Executable File
282 lines
9.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# shellcheck disable=SC2086
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# Downloads and installs the latest lazydocker from
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# https://github.com/jesseduffield/lazydocker/releases
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#
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# Supported platforms:
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# macOS : Apple Silicon (arm64), Intel (x86_64)
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# Linux : x86_64, aarch64/arm64, armv6, armv7, x86 (32-bit)
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# Windows : Not supported — use install-lazydocker.ps1 (PowerShell)
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set -euo pipefail
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# ────────────────────────────────────────────
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# Constants
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# ────────────────────────────────────────────
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REPO="jesseduffield/lazydocker"
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API_URL="https://api.github.com/repos/${REPO}/releases"
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FALLBACK_TAG="v0.25.2"
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INSTALL_DIR="${HOME}/.local/bin"
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# ────────────────────────────────────────────
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# Utility functions (all stderr output)
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# ────────────────────────────────────────────
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info() { echo "[INFO] $*" >&2; }
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warn() { echo "[WARN] $*" >&2; }
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error() {
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echo "[ERROR] $*" >&2
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exit 1
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}
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success() { echo "[OK] $*" >&2; }
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# ────────────────────────────────────────────
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# Ensure Homebrew is available on macOS
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# ────────────────────────────────────────────
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ensure_brew() {
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if command -v brew &>/dev/null; then
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return 0
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fi
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info "Homebrew is not installed. Installing Homebrew..."
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/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
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if [ -d /opt/homebrew/bin ]; then
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export PATH="/opt/homebrew/bin:$PATH"
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fi
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if [ -d /usr/local/bin ]; then
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export PATH="/usr/local/bin:$PATH"
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fi
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command -v brew &>/dev/null || error "Homebrew installation failed. Install it manually: https://brew.sh/"
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success "Homebrew installed"
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}
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# ────────────────────────────────────────────
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# Check required commands
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# ────────────────────────────────────────────
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for cmd in curl uname; do
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command -v "$cmd" &>/dev/null || error "'$cmd' command is required."
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done
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# Fallback: use python3 or grep if jq is not available
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if command -v jq &>/dev/null; then
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_json_latest_tag() {
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jq -r '[.[] | select(.prerelease==false and ((.assets | length) > 0))] | .[0].tag_name'
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}
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elif command -v python3 &>/dev/null; then
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_json_latest_tag() {
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python3 -c "
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import sys, json
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data = json.load(sys.stdin)
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for r in data:
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if not r.get('prerelease') and r.get('assets'):
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print(r['tag_name'])
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break
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"
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}
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else
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_json_latest_tag() {
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grep -oE '"tag_name":[[:space:]]*"[^"]+"' | head -1 | sed -E 's/.*"([^"]+)"$/\1/'
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}
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fi
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# ────────────────────────────────────────────
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# OS / Architecture detection
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# ────────────────────────────────────────────
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# Returns: "<platform>:<archive_format>"
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# platform matches lazydocker's GitHub release asset naming
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detect_platform() {
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local os arch
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os="$(uname -s)"
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arch="$(uname -m)"
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case "$os" in
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# ── macOS ──────────────────────────────────────────────
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Darwin)
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case "$arch" in
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arm64) echo "Darwin_arm64:tar.gz" ;;
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x86_64) echo "Darwin_x86_64:tar.gz" ;;
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*) error "Unsupported macOS architecture: $arch" ;;
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esac
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;;
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# ── Linux ──────────────────────────────────────────────
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Linux)
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case "$arch" in
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x86_64 | amd64) echo "Linux_x86_64:tar.gz" ;;
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aarch64 | arm64) echo "Linux_arm64:tar.gz" ;;
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armv7l) echo "Linux_armv7:tar.gz" ;;
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armv6l) echo "Linux_armv6:tar.gz" ;;
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i686 | i386) echo "Linux_x86:tar.gz" ;;
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*) error "Unsupported Linux architecture: $arch" ;;
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esac
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;;
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# ── Windows (Git Bash / MSYS2 / Cygwin) ───────────────
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MINGW* | MSYS* | CYGWIN*)
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error "Windows is not supported by this script. Use install-lazydocker.ps1 instead."
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;;
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*)
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error "Unsupported OS: $os (uname -a: $(uname -a))"
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;;
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esac
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}
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# ────────────────────────────────────────────
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# Get latest stable release tag
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# ────────────────────────────────────────────
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get_latest_tag() {
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info "Fetching latest release from GitHub API..."
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local releases="" tag=""
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releases="$(curl -fsSL -H "User-Agent: install-lazydocker-sh" --connect-timeout 10 "${API_URL}" 2>/dev/null)" || true
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if [[ -n "$releases" ]]; then
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tag="$(echo "$releases" | _json_latest_tag 2>/dev/null || true)"
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fi
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if [[ -z "$tag" || "$tag" == "null" ]]; then
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warn "Could not fetch latest release tag from GitHub API. Using fallback tag: ${FALLBACK_TAG}"
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tag="${FALLBACK_TAG}"
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fi
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echo "$tag"
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}
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# ────────────────────────────────────────────
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# Build download URL
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# ────────────────────────────────────────────
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build_download_url() {
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local tag="$1"
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local platform="$2" # e.g. Darwin_arm64, Linux_x86_64
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local ext="$3" # tar.gz | zip
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local version="${tag#v}" # Remove 'v' prefix
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local filename="lazydocker_${version}_${platform}.${ext}"
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echo "https://github.com/${REPO}/releases/download/${tag}/${filename}"
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}
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# ────────────────────────────────────────────
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# Download, extract & install
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# ────────────────────────────────────────────
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download_and_install() {
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local url="$1"
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local ext="$2"
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local fallback_url="${3:-}"
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local tmpdir
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tmpdir="$(mktemp -d)"
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trap '[[ -d "${tmpdir:-}" ]] && rm -rf "$tmpdir"' EXIT
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local filename
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filename="${url##*/}"
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info "Downloading: $url"
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if ! curl -fsSL --progress-bar -o "${tmpdir}/${filename}" "$url"; then
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if [[ -n "$fallback_url" && "$fallback_url" != "$url" ]]; then
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warn "Primary download failed. Retrying with fallback URL: $fallback_url"
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curl -fsSL --progress-bar -o "${tmpdir}/${filename}" "$fallback_url" ||
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error "Download failed: $fallback_url"
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else
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error "Download failed: $url"
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fi
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fi
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info "Extracting..."
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case "$ext" in
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tar.gz)
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command -v tar &>/dev/null || error "'tar' command is required."
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tar -xzf "${tmpdir}/${filename}" -C "$tmpdir"
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;;
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zip)
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if command -v unzip &>/dev/null; then
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unzip -q "${tmpdir}/${filename}" -d "$tmpdir"
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elif command -v tar &>/dev/null; then
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tar -xf "${tmpdir}/${filename}" -C "$tmpdir"
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else
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error "'unzip' or 'tar' is required to extract .zip files."
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fi
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;;
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*)
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error "Unknown archive format: $ext"
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;;
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esac
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# Binary name
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local bin_name="lazydocker"
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local bin_src
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bin_src="$(find "$tmpdir" -maxdepth 3 -type f -name "$bin_name" | head -1)"
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[[ -z "$bin_src" ]] && error "Cannot find '$bin_name' in the archive."
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# Create install directory
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mkdir -p "$INSTALL_DIR"
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local install_path="${INSTALL_DIR}/${bin_name}"
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info "Installing: ${install_path}"
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cp "$bin_src" "$install_path"
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chmod +x "$install_path"
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success "Installation complete!"
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info "Version check:"
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"$install_path" --version || true
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# PATH instructions
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if ! echo ":${PATH}:" | grep -q ":${INSTALL_DIR}:"; then
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warn "'${INSTALL_DIR}' is not in your PATH."
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warn "Add this line to your ~/.bashrc or ~/.zshrc:"
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warn " export PATH=\"\$HOME/.local/bin:\$PATH\""
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fi
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}
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# ────────────────────────────────────────────
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# Main
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# ────────────────────────────────────────────
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main() {
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local platform_info platform ext is_macos tag url
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platform_info="$(detect_platform)"
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platform="${platform_info%%:*}"
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ext="${platform_info##*:}"
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info "Detected platform: $platform (format: $ext)"
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is_macos="false"
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[[ "$platform" == "Darwin"* ]] && is_macos="true"
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# macOS: try Homebrew first
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if [[ "$is_macos" == "true" ]]; then
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if command -v lazydocker &>/dev/null; then
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local current_ver
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current_ver="$(lazydocker --version 2>/dev/null || echo 'unknown')"
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info "lazydocker is already installed ($current_ver). Skipping installation."
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else
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ensure_brew
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brew install lazydocker
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success "lazydocker installed via Homebrew"
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fi
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else
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if command -v lazydocker &>/dev/null; then
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local current_ver
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current_ver="$(lazydocker --version 2>/dev/null || echo 'unknown')"
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info "lazydocker is already installed ($current_ver). Skipping installation."
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else
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tag="$(get_latest_tag)"
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info "Latest release: $tag"
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url="$(build_download_url "$tag" "$platform" "$ext")"
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local fallback_url
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fallback_url="$(build_download_url "$FALLBACK_TAG" "$platform" "$ext")"
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download_and_install "$url" "$ext" "$fallback_url"
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fi
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fi
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# Verify lazydocker is available
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if command -v lazydocker &>/dev/null; then
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success "lazydocker is available: $(command -v lazydocker)"
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else
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warn "lazydocker was not found in PATH after installation. You may need to open a new terminal."
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fi
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}
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main "$@"
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