feat(release): add install script and release install instructions

Author: almeidazs

goreleaser.yaml

@@ -50,6 +50,13 @@ changelog:
       - "^chore:"
 
 release:
+  footer: |
+    ## Install
+
+    ```sh
+    curl -fsSL https://raw.githubusercontent.com/RewriteToday/cli/main/scripts/install.sh | sh
+    ```
+
   github:
     owner: RewriteToday
     name: cli

scripts/install.sh

@@ -0,0 +1,136 @@
+#!/usr/bin/env sh
+set -eu
+
+REPO_OWNER="RewriteToday"
+REPO_NAME="cli"
+BINARY_NAME="rewrite"
+INSTALL_DIR="${INSTALL_DIR:-/usr/local/bin}"
+VERSION="${VERSION:-latest}"
+
+need_cmd() {
+  command -v "$1" >/dev/null 2>&1 || {
+    echo "missing required command: $1" >&2
+    exit 1
+  }
+}
+
+fetch_url() {
+  url="$1"
+  out="$2"
+
+  if command -v curl >/dev/null 2>&1; then
+    curl -fsSL "$url" -o "$out"
+    return
+  fi
+
+  if command -v wget >/dev/null 2>&1; then
+    wget -qO "$out" "$url"
+    return
+  fi
+
+  echo "curl or wget is required" >&2
+  exit 1
+}
+
+resolve_latest_version() {
+  latest_url="https://github.com/${REPO_OWNER}/${REPO_NAME}/releases/latest"
+
+  if command -v curl >/dev/null 2>&1; then
+    final_url=$(curl -fsSLI -o /dev/null -w '%{url_effective}' "$latest_url")
+  elif command -v wget >/dev/null 2>&1; then
+    final_url=$(wget -qO- --max-redirect=0 "$latest_url" 2>&1 | awk '/^  Location: /{print $2}' | tr -d '\r')
+  else
+    echo "curl or wget is required" >&2
+    exit 1
+  fi
+
+  tag=$(basename "$final_url")
+  if [ -z "$tag" ]; then
+    echo "failed to resolve latest release tag" >&2
+    exit 1
+  fi
+
+  echo "$tag"
+}
+
+normalize_os() {
+  os=$(uname -s | tr '[:upper:]' '[:lower:]')
+  case "$os" in
+    linux) echo "linux" ;;
+    darwin) echo "darwin" ;;
+    mingw*|msys*|cygwin*) echo "windows" ;;
+    *)
+      echo "unsupported OS: $os" >&2
+      exit 1
+      ;;
+  esac
+}
+
+normalize_arch() {
+  arch=$(uname -m)
+  case "$arch" in
+    x86_64|amd64) echo "amd64" ;;
+    aarch64|arm64) echo "arm64" ;;
+    *)
+      echo "unsupported architecture: $arch" >&2
+      exit 1
+      ;;
+  esac
+}
+
+install_binary() {
+  bin_path="$1"
+  chmod +x "$bin_path"
+
+  if [ -w "$INSTALL_DIR" ]; then
+    mv "$bin_path" "$INSTALL_DIR/$BINARY_NAME"
+  else
+    need_cmd sudo
+    sudo mv "$bin_path" "$INSTALL_DIR/$BINARY_NAME"
+  fi
+}
+
+main() {
+  need_cmd uname
+  need_cmd tar
+
+  if [ "$VERSION" = "latest" ]; then
+    VERSION=$(resolve_latest_version)
+  fi
+
+  os=$(normalize_os)
+  arch=$(normalize_arch)
+
+  asset_ext="tar.gz"
+  if [ "$os" = "windows" ]; then
+    need_cmd unzip
+    asset_ext="zip"
+  fi
+
+  asset_name="${BINARY_NAME}_${VERSION}_${os}_${arch}.${asset_ext}"
+  download_url="https://github.com/${REPO_OWNER}/${REPO_NAME}/releases/download/${VERSION}/${asset_name}"
+
+  tmp_dir=$(mktemp -d)
+  trap 'rm -rf "$tmp_dir"' EXIT INT TERM
+
+  archive_path="$tmp_dir/$asset_name"
+  fetch_url "$download_url" "$archive_path"
+
+  if [ "$asset_ext" = "zip" ]; then
+    unzip -q "$archive_path" -d "$tmp_dir"
+  else
+    tar -xzf "$archive_path" -C "$tmp_dir"
+  fi
+
+  bin_path="$tmp_dir/$BINARY_NAME"
+  if [ ! -f "$bin_path" ]; then
+    echo "binary not found in downloaded archive" >&2
+    exit 1
+  fi
+
+  install_binary "$bin_path"
+
+  echo "installed ${BINARY_NAME} ${VERSION} to ${INSTALL_DIR}/${BINARY_NAME}"
+}
+
+main "$@"