feat: add one-line install script

Author: edy

.github/workflows/release.yml

@@ -32,6 +32,7 @@ jobs:
           cd packages/opencode/dist/opencode-darwin-arm64/bin
           tar czf "../../../../../release-assets/opencode-darwin-arm64.tar.gz" opencodex
           cd -
+          cp script/install.sh release-assets/
           ls -la release-assets/
 
       - name: Create or Update Release
@@ -40,5 +41,7 @@ jobs:
           tag_name: ${{ github.ref_type == 'tag' && github.ref_name || 'latest' }}
           name: ${{ github.ref_type == 'tag' && github.ref_name || 'Latest macOS Build' }}
           prerelease: ${{ github.ref_type != 'tag' }}
-          files: release-assets/opencode-darwin-arm64.tar.gz
+          files: |
+            release-assets/opencode-darwin-arm64.tar.gz
+            release-assets/install.sh
           fail_on_unmatched_files: true

script/install.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+REPO="3kaiu/opencode-x"
+BIN_NAME="opencodex"
+INSTALL_DIR="${INSTALL_DIR:-/usr/local/bin}"
+
+if [[ "${OSTYPE}" != "darwin"* ]] || [[ "$(uname -m)" != "arm64" ]]; then
+  echo "Only macOS arm64 is supported." >&2
+  exit 1
+fi
+
+echo "Fetching latest release from ${REPO}..."
+LATEST=$(curl -fsSL "https://api.github.com/repos/${REPO}/releases/latest" | grep '"tag_name"' | cut -d'"' -f4)
+echo "Latest version: ${LATEST}"
+
+DOWNLOAD_URL="https://github.com/${REPO}/releases/download/${LATEST}/opencode-darwin-arm64.tar.gz"
+TMPDIR=$(mktemp -d)
+trap 'rm -rf "${TMPDIR}"' EXIT
+
+echo "Downloading ${DOWNLOAD_URL}..."
+curl -fsSL "${DOWNLOAD_URL}" -o "${TMPDIR}/opencode.tar.gz"
+tar xzf "${TMPDIR}/opencode.tar.gz" -C "${TMPDIR}"
+
+echo "Installing ${BIN_NAME} to ${INSTALL_DIR}..."
+install -d "${INSTALL_DIR}"
+install "${TMPDIR}/${BIN_NAME}" "${INSTALL_DIR}/${BIN_NAME}"
+
+echo "Installed ${BIN_NAME} ${LATEST} to ${INSTALL_DIR}/${BIN_NAME}"