621 lines
18 KiB
Markdown
621 lines
18 KiB
Markdown
# GitHub Binary Installer Template
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This document provides instructions for creating a new installer script for binaries hosted on GitHub releases, following the patterns established in the git-credential-manager, borg-cli, and tea-cli installers.
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## Overview
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The installer should:
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- Prefer system-wide installation (/usr/local/bin) for all users
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- Fall back to user-specific installation ($HOME/bin) if no sudo access
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- Handle version management with symlinks
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- Warn about and offer to remove conflicting user bin installations
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- Support command-line options for version specification and reinstallation
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- Always use GitHub releases for the latest binaries (avoid package managers)
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## Script Structure
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### 1. Header and Configuration
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```bash
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#!/bin/bash
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# [Tool Name] Installer
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# Downloads and installs the latest [Tool Name] binary
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# Supports multiple platforms and installation methods
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set -e
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# Colors for output
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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NC='\033[0m' # No Color
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# Configuration
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GITHUB_REPO="[owner]/[repo]" # e.g., "git-ecosystem/git-credential-manager"
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USER_BIN_DIR="$HOME/bin"
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SYSTEM_INSTALL_DIR="/usr/local/bin"
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TEMP_DIR="/tmp/[tool]-install"
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```
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### 2. Core Utility Functions
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```bash
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# Function to print colored output
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print_status() {
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echo -e "${BLUE}[INFO]${NC} $1"
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}
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print_success() {
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echo -e "${GREEN}[SUCCESS]${NC} $1"
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}
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print_warning() {
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echo -e "${YELLOW}[WARNING]${NC} $1"
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}
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print_error() {
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echo -e "${RED}[ERROR]${NC} $1"
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}
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# Function to check if command exists
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command_exists() {
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command -v "$1" >/dev/null 2>&1
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}
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```
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### 3. System Detection Functions
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```bash
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# Function to detect OS and package manager
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detect_os() {
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if [[ -f /etc/os-release ]]; then
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. /etc/os-release
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OS="$ID"
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OS_VERSION="$VERSION_ID"
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else
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print_error "Cannot detect operating system"
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exit 1
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fi
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# Detect package manager
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if command_exists apt; then
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PKG_MANAGER="apt"
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elif command_exists yum; then
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PKG_MANAGER="yum"
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elif command_exists dnf; then
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PKG_MANAGER="dnf"
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elif command_exists pacman; then
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PKG_MANAGER="pacman"
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elif command_exists zypper; then
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PKG_MANAGER="zypper"
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else
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PKG_MANAGER="unknown"
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fi
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print_status "Detected OS: $OS $OS_VERSION"
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print_status "Package manager: $PKG_MANAGER"
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}
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# Function to get system architecture
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get_arch() {
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ARCH=$(uname -m)
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case $ARCH in
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x86_64)
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echo "amd64"
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;;
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aarch64|arm64)
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echo "arm64"
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;;
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armv7l)
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echo "arm"
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;;
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*)
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print_error "Unsupported architecture: $ARCH"
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exit 1
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;;
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esac
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}
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```
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### 4. Version Management Functions
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```bash
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# Function to get current installed version and location
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get_current_version() {
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if command_exists [tool]; then
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CURRENT_VERSION=$([tool] --version 2>/dev/null | grep -o '[0-9]\+\.[0-9]\+\.[0-9]\+' | head -n 1)
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if [[ -z "$CURRENT_VERSION" ]]; then
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CURRENT_VERSION="unknown"
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fi
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# Determine installation location
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[TOOL]_PATH=$(which [tool])
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if [[ "$[TOOL]_PATH" == "$USER_BIN_DIR"* ]]; then
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INSTALL_TYPE="user"
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elif [[ "$[TOOL]_PATH" == "/usr/local/bin"* ]] || [[ "$[TOOL]_PATH" == "/usr/bin"* ]]; then
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INSTALL_TYPE="system"
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else
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INSTALL_TYPE="other"
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fi
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else
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CURRENT_VERSION="not_installed"
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INSTALL_TYPE="none"
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fi
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echo "$CURRENT_VERSION:$INSTALL_TYPE"
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}
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# Function to compare versions
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compare_versions() {
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local version1="$1"
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local version2="$2"
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# Remove 'v' prefix if present
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version1=${version1#v}
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version2=${version2#v}
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# Split versions into arrays
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IFS='.' read -ra V1 <<< "$version1"
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IFS='.' read -ra V2 <<< "$version2"
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# Compare major, minor, patch
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for i in {0..2}; do
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local v1=${V1[$i]:-0}
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local v2=${V2[$i]:-0}
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if (( v1 > v2 )); then
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return 0 # version1 > version2
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elif (( v1 < v2 )); then
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return 1 # version1 < version2
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fi
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done
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return 0 # versions are equal
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}
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# Function to get latest release info
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get_latest_release() {
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print_status "Fetching latest [Tool Name] release information..."
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if command_exists curl; then
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RELEASE_INFO=$(curl -s "https://api.github.com/repos/$GITHUB_REPO/releases/latest")
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elif command_exists wget; then
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RELEASE_INFO=$(wget -qO- "https://api.github.com/repos/$GITHUB_REPO/releases/latest")
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else
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print_error "curl or wget is required"
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exit 1
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fi
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if [[ -z "$RELEASE_INFO" ]]; then
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print_error "Failed to fetch release information"
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exit 1
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fi
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# Extract version and download URLs
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LATEST_VERSION=$(echo "$RELEASE_INFO" | grep -o '"tag_name": *"[^"]*"' | sed -E 's/.*"([^"]+)".*/\1/')
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if [[ -z "$LATEST_VERSION" ]]; then
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print_error "Failed to parse release information"
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exit 1
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fi
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print_success "Latest version: $LATEST_VERSION"
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}
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# Function to check if update is needed
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check_update_needed() {
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local latest_version="$1"
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local current_info=$(get_current_version)
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local current_version=$(echo "$current_info" | cut -d: -f1)
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local install_type=$(echo "$current_info" | cut -d: -f2)
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print_status "Current version: $current_version ($install_type)"
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print_status "Latest version: $latest_version"
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if [[ "$current_version" == "not_installed" ]]; then
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print_status "[Tool Name] is not installed"
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return 0 # Need to install
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fi
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if [[ "$current_version" == "unknown" ]]; then
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print_warning "Cannot determine current version, proceeding with update"
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return 0 # Assume update needed
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fi
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# Clean version strings for comparison
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local clean_current="${current_version#v}"
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local clean_latest="${latest_version#v}"
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if compare_versions "$clean_latest" "$clean_current"; then
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if [[ "$clean_latest" == "$clean_current" ]]; then
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print_success "You already have the latest version ($current_version) installed at $install_type location"
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if [[ "$force_reinstall" == "true" ]]; then
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print_status "Force reinstall requested, proceeding..."
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return 0
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else
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return 1 # No update needed
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fi
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else
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print_status "Newer version available: $latest_version > $current_version"
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return 0 # Update needed
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fi
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else
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print_success "Your version ($current_version) is newer than latest release ($latest_version)"
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return 1 # No update needed
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fi
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}
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```
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### 5. Installation Strategy Functions
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```bash
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# Function to check if user bin directory exists and is in PATH
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check_user_bin_setup() {
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if [[ ! -d "$USER_BIN_DIR" ]]; then
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print_status "User bin directory doesn't exist"
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return 1
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fi
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# Check if user bin is in PATH
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if [[ ":$PATH:" != *":$USER_BIN_DIR:"* ]]; then
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print_warning "User bin directory ($USER_BIN_DIR) is not in PATH"
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print_status "Add to PATH: export PATH=\"$USER_BIN_DIR:\$PATH\""
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return 1
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fi
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return 0
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}
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# Function to check for version-specific symlink
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check_version_symlink() {
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local [tool]_path=$(which [tool] 2>/dev/null)
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if [[ -z "$[tool]_path" ]]; then
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return 1
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fi
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# Check if it's a symlink
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if [[ -L "$[tool]_path" ]]; then
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SYMLINK_TARGET=$(readlink "$[tool]_path")
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# Extract version from symlink target
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if [[ "$SYMLINK_TARGET" =~ [tool]-([0-9]+\.[0-9]+\.[0-9]+) ]]; then
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CURRENT_SYMLINK_VERSION="${BASH_REMATCH[1]}"
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return 0
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fi
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fi
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return 1
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}
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# Function to determine installation strategy
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determine_install_strategy() {
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local current_info=$(get_current_version)
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local current_version=$(echo "$current_info" | cut -d: -f1)
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local install_type=$(echo "$current_info" | cut -d: -f2)
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# Strategy: Prefer system installation for all users
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if [[ $EUID -eq 0 ]] || sudo -n true 2>/dev/null; then
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print_status "Installing system-wide for all users"
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INSTALL_STRATEGY="system_install"
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TARGET_DIR="$SYSTEM_INSTALL_DIR"
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# Warn if user bin has [tool]
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if [[ -f "$USER_BIN_DIR/[tool]" ]]; then
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print_warning "[Tool Name] found in user bin directory ($USER_BIN_DIR)"
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print_status "This might take precedence if $USER_BIN_DIR is in PATH before system paths"
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fi
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else
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print_status "No sudo access, checking user bin directory"
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if check_user_bin_setup; then
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print_status "User bin directory is available and in PATH"
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# Check if [tool] exists in user bin
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if [[ -f "$USER_BIN_DIR/[tool]" ]]; then
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print_status "[Tool Name] found in user bin directory"
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# Check for version symlink
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if check_version_symlink; then
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print_status "Version symlink found: $CURRENT_SYMLINK_VERSION"
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INSTALL_STRATEGY="user_update"
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TARGET_DIR="$USER_BIN_DIR"
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else
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print_status "No version symlink found, will create one"
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INSTALL_STRATEGY="user_upgrade"
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TARGET_DIR="$USER_BIN_DIR"
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fi
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else
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print_status "[Tool Name] not found in user bin, will install there"
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INSTALL_STRATEGY="user_install"
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TARGET_DIR="$USER_BIN_DIR"
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fi
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else
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print_error "Cannot install system-wide (no sudo) and user bin not available"
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exit 1
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fi
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fi
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print_status "Installation strategy: $INSTALL_STRATEGY"
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print_status "Target directory: $TARGET_DIR"
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}
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```
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### 6. Download and Installation Functions
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```bash
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# Function to download file
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download_file() {
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local url="$1"
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local filename="$2"
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print_status "Downloading $filename..."
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if command_exists curl; then
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curl -L -o "$TEMP_DIR/$filename" "$url"
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elif command_exists wget; then
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wget -O "$TEMP_DIR/$filename" "$url"
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else
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print_error "curl or wget is required"
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exit 1
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fi
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if [[ ! -f "$TEMP_DIR/$filename" ]]; then
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print_error "Failed to download $filename"
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exit 1
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fi
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print_success "Downloaded $filename"
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}
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# Function to install [Tool Name] from binary
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install_[tool]_from_binary() {
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local arch="$1"
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local version="$2"
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# Determine binary name pattern from GitHub releases
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local binary_name="[tool]-${version#v}-linux-${arch}"
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local download_url="https://github.com/$GITHUB_REPO/releases/download/$version/$binary_name"
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download_file "$download_url" "$binary_name"
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# Determine installation command based on target directory
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local install_cmd="install -m 755"
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local symlink_cmd="ln -sf"
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if [[ "$TARGET_DIR" == "$SYSTEM_INSTALL_DIR" ]]; then
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install_cmd="sudo $install_cmd"
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symlink_cmd="sudo $symlink_cmd"
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fi
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print_status "Installing [Tool Name] binary to $TARGET_DIR..."
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# Install the binary with version suffix
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$install_cmd "$TEMP_DIR/$binary_name" "$TARGET_DIR/[tool]-$version"
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# Verify installation
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if [[ ! -f "$TARGET_DIR/[tool]-$version" ]]; then
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print_error "Failed to install [Tool Name] binary"
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return 1
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fi
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# Remove any existing [tool] symlink or file to avoid conflicts
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rm -f "$TARGET_DIR/[tool]"
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# Create/update symlink to point to this version
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$symlink_cmd "$TARGET_DIR/[tool]-$version" "$TARGET_DIR/[tool]"
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print_success "[Tool Name] binary installed successfully"
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print_status "Version symlink: [tool] -> [tool]-$version"
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}
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# Function to verify [Tool Name] installation
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verify_[tool]_installation() {
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print_status "Verifying [Tool Name] installation..."
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if command_exists [tool]; then
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local version=$([tool] --version 2>/dev/null | grep -o '[0-9]\+\.[0-9]\+\.[0-9]\+' | head -n 1)
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print_success "[Tool Name] installed: $version"
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# Check for user bin versions and offer removal
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if [[ -d "$USER_BIN_DIR" ]] && [[ "$TARGET_DIR" == "$SYSTEM_INSTALL_DIR" ]]; then
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local user_versions=()
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for file in "$USER_BIN_DIR"/[tool]*; do
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if [[ -f "$file" ]]; then
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user_versions+=("$file")
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fi
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done
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if [[ ${#user_versions[@]} -gt 0 ]]; then
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print_warning "Found [tool] binaries in user bin directory:"
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for file in "${user_versions[@]}"; do
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echo " $file"
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done
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echo
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read -p "Would you like to remove these user bin versions? (y/N): " -n 1 -r
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echo
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if [[ $REPLY =~ ^[Yy]$ ]]; then
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for file in "${user_versions[@]}"; do
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rm -f "$file"
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print_status "Removed $file"
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done
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print_success "Removed all user bin versions"
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fi
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fi
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fi
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return 0
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else
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print_error "[Tool Name] installation verification failed"
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return 1
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fi
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}
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```
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### 7. Utility Functions
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```bash
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# Function to cleanup
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cleanup() {
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if [[ -d "$TEMP_DIR" ]]; then
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rm -rf "$TEMP_DIR"
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print_status "Cleaned up temporary files"
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fi
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}
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# Function to show usage
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show_usage() {
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echo "[Tool Name] Installer"
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echo
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echo "Usage: $0 [OPTIONS]"
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echo
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echo "Options:"
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echo " -h, --help Show this help message"
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echo " -v, --version Install specific version (default: latest)"
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echo " -f, --force Force reinstall even if up-to-date"
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echo " -r, --reinstall Reinstall the current installed version"
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echo
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echo "Examples:"
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echo " $0 # Install latest version using best method"
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echo " $0 -v v1.0.0 # Install specific version"
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echo " $0 --reinstall # Reinstall current version"
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}
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```
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### 8. Main Function
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```bash
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# Main installation function
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main() {
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local target_version=""
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local force_reinstall=false
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local reinstall_current=false
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# Parse command line arguments
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while [[ $# -gt 0 ]]; do
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case $1 in
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-h|--help)
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show_usage
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exit 0
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;;
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-v|--version)
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target_version="$2"
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shift 2
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;;
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-f|--force)
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force_reinstall=true
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shift
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;;
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-r|--reinstall)
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reinstall_current=true
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shift
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;;
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*)
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print_error "Unknown option: $1"
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show_usage
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exit 1
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;;
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esac
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done
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echo "========================================"
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echo "[Tool Name] Installer"
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echo "========================================"
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echo
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# Check if running as root for system installation
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if [[ $EUID -ne 0 ]]; then
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print_warning "Not running as root. Some operations may require sudo."
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fi
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# Detect system
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detect_os
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ARCH=$(get_arch)
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# Handle reinstall current version
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if [[ "$reinstall_current" == "true" ]]; then
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local current_info=$(get_current_version)
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local current_version=$(echo "$current_info" | cut -d: -f1)
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if [[ "$current_version" == "not_installed" ]]; then
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print_error "No current version installed to reinstall"
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exit 1
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fi
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target_version="$current_version"
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force_reinstall=true
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print_status "Reinstalling current version: $target_version"
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fi
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# Get latest version if not specified
|
|
if [[ -z "$target_version" ]]; then
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get_latest_release
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target_version="$LATEST_VERSION"
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else
|
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print_status "Using specified version: $target_version"
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fi
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# Determine installation strategy
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determine_install_strategy
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# Check if update is needed
|
|
if ! check_update_needed "$target_version"; then
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print_success "No installation needed. Exiting."
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exit 0
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fi
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|
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# Create temporary directory
|
|
mkdir -p "$TEMP_DIR"
|
|
|
|
# Trap cleanup on exit
|
|
trap cleanup EXIT
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|
|
|
# Install from binary
|
|
install_[tool]_from_binary "$ARCH" "$target_version"
|
|
verify_[tool]_installation
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|
|
|
# Installation completed successfully
|
|
echo
|
|
print_success "Installation completed successfully!"
|
|
echo
|
|
echo "Installation details:"
|
|
echo "- Strategy: $INSTALL_STRATEGY"
|
|
echo "- Location: $TARGET_DIR"
|
|
if [[ "$INSTALL_STRATEGY" == user* ]]; then
|
|
echo "- Binary: [tool] (symlink to [tool]-$target_version)"
|
|
echo "- Version: $target_version"
|
|
fi
|
|
echo
|
|
echo "Next steps:"
|
|
echo "1. Test installation: [tool] --version"
|
|
echo "2. [Add tool-specific usage instructions]"
|
|
echo
|
|
if [[ "$INSTALL_STRATEGY" == user* ]]; then
|
|
echo "User-specific installation notes:"
|
|
echo "- Binary installed in: $USER_BIN_DIR"
|
|
echo "- Ensure $USER_BIN_DIR is in your PATH"
|
|
echo "- You can have multiple versions side-by-side"
|
|
fi
|
|
echo
|
|
echo "For more information, visit: https://github.com/$GITHUB_REPO"
|
|
}
|
|
|
|
# Run main function
|
|
main "$@"
|
|
```
|
|
|
|
## Implementation Notes
|
|
|
|
1. **Replace Placeholders**: Replace `[tool]`, `[Tool Name]`, `[TOOL]`, `[owner]/[repo]` with actual values.
|
|
|
|
2. **Binary Naming Convention**: Adjust the `binary_name` in `install_[tool]_from_binary` to match the actual GitHub release asset names.
|
|
|
|
3. **Version Detection**: Modify the version extraction in `get_current_version` and `verify_[tool]_installation` to match the tool's `--version` output format.
|
|
|
|
4. **Package Manager**: Since we disable package manager installation, the script will always use the binary method.
|
|
|
|
5. **Testing**: Test the script on different systems and with different scenarios (system vs user installation, reinstall, etc.).
|
|
|
|
6. **Error Handling**: Ensure all error conditions are properly handled with appropriate exit codes.
|
|
|
|
7. **Documentation**: Update the usage examples and next steps section with tool-specific information.
|
|
|
|
This template ensures consistency across all installer scripts and provides a robust installation experience for users.</content>
|
|
<parameter name="filePath">INSTALLER_CREATION_GUIDE.md |