Created
March 27, 2026 03:21
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shfmt install
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| #!/usr/bin/env bash | |
| set -e | |
| set -u | |
| set -o pipefail | |
| set -C | |
| # 設定 | |
| REPO="mvdan/sh" | |
| API_URL="https://api.github.com/repos/${REPO}/releases/latest" | |
| INSTALL_DIR="$HOME/.local/bin" | |
| BINARY_NAME="shfmt" | |
| CURL_OPTS=(-sSfL) | |
| if [ -n "$GITHUB_TOKEN" ]; then | |
| echo "Using GITHUB_TOKEN for authentication." | |
| CURL_OPTS+=(-H "Authorization: token ${GITHUB_TOKEN}") | |
| fi | |
| # 依存コマンドのチェック | |
| if ! command -v curl &>/dev/null; then | |
| echo "Error: curl is required but not installed." >&2 | |
| exit 1 | |
| fi | |
| if ! command -v jq &>/dev/null; then | |
| echo "Error: jq is required but not installed." >&2 | |
| exit 1 | |
| fi | |
| # 1. APIから最新リリース情報を取得し、tag_nameを取得 | |
| echo "Fetching latest release information..." | |
| JSON_RESPONSE=$(curl "${CURL_OPTS[@]}" "$API_URL") | |
| TAG_NAME=$(echo "$JSON_RESPONSE" | jq -r .tag_name) | |
| if [ -z "$TAG_NAME" ] || [ "$TAG_NAME" = "null" ]; then | |
| echo "Error: Could not fetch tag_name from API." >&2 | |
| exit 1 | |
| fi | |
| echo "Latest version: $TAG_NAME" | |
| # 3. すでにshfmtがインストールされていて、同じバージョンであれば終了 | |
| if command -v "$BINARY_NAME" &>/dev/null; then | |
| CURRENT_VERSION=$("$BINARY_NAME" --version 2>/dev/null) | |
| if [ "$CURRENT_VERSION" = "$TAG_NAME" ]; then | |
| echo "shfmt $TAG_NAME is already installed. Skipping." | |
| exit 0 | |
| fi | |
| fi | |
| # 4. uname -s, uname -mの結果に合わせて適切なassetsのURLを取得 | |
| OS=$(uname -s | tr '[:upper:]' '[:lower:]') | |
| ARCH=$(uname -m) | |
| # アーキテクチャのマッピング (shfmtの命名規則に合わせる) | |
| case "$ARCH" in | |
| x86_64) ARCH="amd64" ;; | |
| aarch64) ARCH="arm64" ;; # Linux aarch64 | |
| arm64) ARCH="arm64" ;; # macOS arm64 | |
| i386 | i686) ARCH="386" ;; | |
| esac | |
| # 例: shfmt_v3.13.0_darwin_amd64 のようなパターンを検索 | |
| # APIレスポンス内で name に "_${OS}_${ARCH}" を含むものを探す | |
| DOWNLOAD_URL=$(echo "$JSON_RESPONSE" | jq -r --arg os "$OS" --arg arch "$ARCH" \ | |
| '.assets[] | select(.name | test("_\($os)_\($arch)$")) | .browser_download_url' | head -n 1) | |
| if [ -z "$DOWNLOAD_URL" ]; then | |
| echo "Error: No matching download URL found for OS=$OS, ARCH=$ARCH." >&2 | |
| exit 1 | |
| fi | |
| echo "Download URL: $DOWNLOAD_URL" | |
| # 5. ~/.local/bin にインストール | |
| mkdir -p "$INSTALL_DIR" | |
| # バイナリをダウンロード（バージョン付きで保存） | |
| BINARY_PATH="${INSTALL_DIR}/${BINARY_NAME}-${TAG_NAME}" | |
| echo "Downloading to $BINARY_PATH..." | |
| curl -sL "$DOWNLOAD_URL" -o "$BINARY_PATH" | |
| chmod +x "$BINARY_PATH" | |
| # 6. shfmtという名前にsymlinkを作成する | |
| SYMLINK_PATH="${INSTALL_DIR}/${BINARY_NAME}" | |
| # 既存のシンボリックリンクやファイルがあれば削除 | |
| if [ -L "$SYMLINK_PATH" ]; then | |
| rm "$SYMLINK_PATH" | |
| elif [ -e "$SYMLINK_PATH" ]; then | |
| echo "Warning: Removing existing file at $SYMLINK_PATH" | |
| rm "$SYMLINK_PATH" | |
| fi | |
| ln -s "$BINARY_PATH" "$SYMLINK_PATH" | |
| echo "" | |
| echo "Installation complete!" | |
| echo "Version: $TAG_NAME" | |
| echo "Binary: $BINARY_PATH" | |
| echo "Link: $SYMLINK_PATH" | |
| # パスが通っていない場合の警告 | |
| if [[ ":$PATH:" != *":$INSTALL_DIR:"* ]]; then | |
| echo "" | |
| echo "Warning: $INSTALL_DIR is not in your PATH." | |
| echo "Please add the following line to your .bashrc or .zshrc:" | |
| echo " export PATH=\"\$HOME/.local/bin:\$PATH\"" | |
| fi |
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