Install requested macOS extension caches alongside PHP

__tests__/extension-packs.test.ts

@@ -0,0 +1,117 @@
+import {extensionPacks} from '../src/extensions';
+import {execFileSync} from 'node:child_process';
+import * as fs from 'node:fs';
+import * as os from 'node:os';
+import * as path from 'node:path';
+
+describe('Optional macOS extension archives', () => {
+  it('installs packs concurrently and preserves successful packs when another fails', () => {
+    const directory = fs.mkdtempSync(
+      path.join(os.tmpdir(), 'setup-php-packs-')
+    );
+    const cache = path.join(directory, 'cache');
+    fs.mkdirSync(cache);
+    try {
+      for (const name of ['imagick', 'mongodb', 'memcached']) {
+        fs.writeFileSync(path.join(cache, name + '.json'), '{}');
+      }
+      fs.writeFileSync(
+        path.join(cache, 'install-extensions.cjs'),
+        `const fs=require('node:fs'), path=require('node:path');
+const [,directory,name]=process.argv.slice(2);
+fs.writeFileSync(path.join(directory,name+'.started'),'yes');
+setTimeout(()=>process.exit(2),1500);
+setInterval(()=>{
+  if (fs.readdirSync(directory).filter(file=>file.endsWith('.started')).length!==3) return;
+  fs.writeFileSync(path.join(directory,name+'.env'),'SASL_PATH=/cache/'+name+'\\n');
+  console.log('completed '+name);
+  process.exit(name==='mongodb'?1:0);
+},10);
+`
+      );
+      const output = execFileSync(
+        'bash',
+        [
+          '-c',
+          '. "$CACHE_SCRIPT"; add_env() { printf "env %s %s\\n" "$1" "$2"; }; (exit 0) & extension_cache_pid=$!; finish_extension_cache_downloads; test "$extension_cache_memcached_dependencies" = "igbinary msgpack"'
+        ],
+        {
+          encoding: 'utf8',
+          env: {
+            ...process.env,
+            CACHE_SCRIPT: path.resolve(
+              'src/scripts/extensions/darwin_cache.sh'
+            ),
+            SETUP_PHP_NODE: process.execPath,
+            SETUP_PHP_EXTENSION_PACKS: 'imagick mongodb memcached',
+            extension_cache_dir: cache,
+            verbose: ''
+          }
+        }
+      );
+      expect(output).toContain('completed imagick');
+      expect(output).toContain('completed memcached');
+      expect(output).toContain('mongodb cache unavailable');
+      expect(output).toContain('env SASL_PATH /cache/imagick');
+      expect(output).not.toContain('env SASL_PATH /cache/mongodb');
+      expect(fs.existsSync(cache)).toBe(false);
+    } finally {
+      fs.rmSync(directory, {recursive: true, force: true});
+    }
+  });
+  it('selects each requested pack once', async () => {
+    expect(
+      await extensionPacks(
+        'imagick, mongodb, memcached, imagick, redis',
+        '8.4',
+        'darwin'
+      )
+    ).toEqual(['imagick', 'mongodb', 'memcached']);
+  });
+
+  it.each(['', 'redis, yaml', ':imagick', 'imagick, :imagick'])(
+    'does not download unused or disabled packs: %s',
+    async input => {
+      expect(await extensionPacks(input, '8.4', 'darwin')).toEqual([]);
+    }
+  );
+
+  it.each(['imagick-3.8.1', 'mongodb-beta', 'memcached-github.com/a/b@main'])(
+    'preserves explicit version/source installation: %s',
+    async input => {
+      expect(await extensionPacks(input, '8.4', 'darwin')).toEqual([]);
+    }
+  );
+
+  it('selects optional packs for PHP 5.6 through 8.7', async () => {
+    for (const version of [
+      '5.6',
+      '7.0',
+      '7.1',
+      '7.2',
+      '7.3',
+      '7.4',
+      '8.0',
+      '8.1',
+      '8.2',
+      '8.3',
+      '8.4',
+      '8.5',
+      '8.6',
+      '8.7'
+    ]) {
+      expect(
+        await extensionPacks('imagick, mongodb, memcached', version, 'darwin')
+      ).toEqual(['imagick', 'mongodb', 'memcached']);
+    }
+  });
+
+  it('keeps unsupported PHP and other platforms on their existing paths', async () => {
+    for (const version of ['5.4', '5.5', '7.5', '8.8', '9.0']) {
+      expect(await extensionPacks('imagick', version, 'darwin')).toEqual([]);
+    }
+    for (const os of ['linux', 'win32']) {
+      expect(await extensionPacks('imagick', '8.4', os)).toEqual([]);
+    }
+  });
+});

src/extensions.ts

@@ -1,5 +1,18 @@
 import * as utils from './utils';
 
+/** Select only unversioned, requested macOS extension caches. */
+export async function extensionPacks(
+  extension_csv: string,
+  version: string,
+  os: string
+): Promise<string[]> {
+  if (os !== 'darwin' || !/^(5\.6|7\.[0-4]|8\.[0-7])$/.test(version)) return [];
+  const requested = await utils.extensionArray(extension_csv);
+  return ['imagick', 'mongodb', 'memcached'].filter(
+    name => requested.includes(name) && !requested.includes(':' + name)
+  );
+}
+
 /**
  * Install and enable extensions for darwin
  *

src/install.ts

@@ -31,6 +31,13 @@ export async function getScript(os: string): Promise<string> {
   const ini_file: string = await utils.parseIniFile(
     await utils.getInput('ini-file', false)
   );
+  const packs = await extensions.extensionPacks(extension_csv, version, os);
+  if (packs.length) {
+    process.env['SETUP_PHP_EXTENSION_PACKS'] = packs.join(' ');
+    process.env['SETUP_PHP_NODE'] = process.execPath;
+  } else {
+    delete process.env['SETUP_PHP_EXTENSION_PACKS'];
+  }
   let script = await utils.joins('.', script_path, `'${version}'`, ini_file);
   if (extension_csv) {
     script += await extensions.addExtension(extension_csv, version, os);

src/scripts/darwin.sh

@@ -77,6 +77,9 @@ add_brew_extension() {
   prefix=$2
   expected_version=${3:-}
   extension="$(get_extension_from_formula "$formula")"
+  if [ "$extension" = memcached ] && [ -n "${extension_cache_memcached_dependencies:-}" ]; then
+    enable_extension_cache_dependencies "$extension"
+  fi
   enable_extension "$extension" "$prefix"
   if check_extension "$extension" && { [ -z "$expected_version" ] || check_extension_version "$extension" "$expected_version"; }; then
     add_log "${tick:?}" "$extension" "Enabled"
@@ -337,4 +340,10 @@ export HOMEBREW_NO_INSTALL_FROM_API=1
 configure_brew
 read_env
 self_hosted_setup
+if [ -n "${SETUP_PHP_EXTENSION_PACKS:-}" ]; then
+  # shellcheck source=.
+  . "$scripts/extensions/darwin_cache.sh"
+  start_extension_cache_downloads
+fi
 setup_php
+if [ -n "${SETUP_PHP_EXTENSION_PACKS:-}" ]; then finish_extension_cache_downloads; fi

src/scripts/extensions/darwin_cache.sh

@@ -0,0 +1,75 @@
+# Optional macOS extension archives. Downloads overlap PHP installation; the
+# PHP-only path never sources this file or contacts the extension cache.
+start_extension_cache_downloads() {
+  extension_cache_dir=$(mktemp -d "${RUNNER_TEMP:-/tmp}/setup-php-extensions.XXXXXX") || return 0
+  (
+    cache_installer="$extension_cache_dir/install-extensions.cjs"
+    cache_primary="https://github.com/shivammathur/php-darwin/releases/download/extensions"
+    cache_mirror="https://artifacts.php-darwin.setup-php.com/extensions"
+    curl -fsSL --retry 0 --connect-timeout 3 --max-time 3 --max-filesize 2000000 \
+      "$cache_primary/install-extensions.cjs" -o "$cache_installer" ||
+      curl -fsSL --retry 0 --connect-timeout 3 --max-time 10 --max-filesize 2000000 \
+        "$cache_mirror/install-extensions.cjs" -o "$cache_installer" || exit 0
+    IFS=' ' read -r -a cache_extensions <<< "$SETUP_PHP_EXTENSION_PACKS"
+    "$SETUP_PHP_NODE" "$cache_installer" prefetch "$extension_cache_dir" \
+      "$version" "$debug" "$ts" "$(uname -m)" "${cache_extensions[@]}"
+  ) > "$extension_cache_dir/download.log" 2>&1 &
+  extension_cache_pid=$!
+}
+
+finish_extension_cache_downloads() {
+  [ -n "${extension_cache_pid:-}" ] || return 0
+  wait "$extension_cache_pid" || true
+  extension_cache_pid=
+  if [[ "${verbose:-${VERBOSE:-}}" =~ ^(true|v{1,3})$ ]]; then
+    cat "$extension_cache_dir/download.log"
+  fi
+  if [ ! -s "$extension_cache_dir/install-extensions.cjs" ]; then
+    rm -rf "$extension_cache_dir"
+    extension_cache_dir=
+    return 0
+  fi
+  local extension variable value index
+  local cache_install_names=() cache_install_pids=()
+  for extension in $SETUP_PHP_EXTENSION_PACKS; do
+    [ -s "$extension_cache_dir/$extension.json" ] || continue
+    # Packs own separate directories and module names. Extract and validate them
+    # concurrently, then import their environments only after each one succeeds.
+    "$SETUP_PHP_NODE" "$extension_cache_dir/install-extensions.cjs" install "$extension_cache_dir" "$extension" \
+      > "$extension_cache_dir/$extension.install.log" 2>&1 &
+    cache_install_names+=("$extension")
+    cache_install_pids+=("$!")
+  done
+  for index in "${!cache_install_pids[@]}"; do
+    extension=${cache_install_names[$index]}
+    if wait "${cache_install_pids[$index]}"; then
+      cat "$extension_cache_dir/$extension.install.log"
+      while IFS='=' read -r variable value; do
+        case "$variable" in
+          MAGICK_CONFIGURE_PATH|MAGICK_CODER_MODULE_PATH|MAGICK_FILTER_MODULE_PATH|SASL_PATH)
+            add_env "$variable" "$value"
+            ;;
+        esac
+      done < "$extension_cache_dir/$extension.env"
+      # Store the dependency names in shell variables; the download directory
+      # can be removed before the action enables its requested extensions.
+      if [ "$extension" = memcached ]; then
+        extension_cache_memcached_dependencies='igbinary msgpack'
+      fi
+    else
+      cat "$extension_cache_dir/$extension.install.log"
+      printf 'setup-php: %s cache unavailable for this PHP; using the existing installer\n' "$extension"
+    fi
+  done
+  rm -rf "$extension_cache_dir"
+  extension_cache_dir=
+}
+
+enable_extension_cache_dependencies() {
+  if [ "$1" = memcached ] && [ -n "${extension_cache_memcached_dependencies:-}" ]; then
+    local dependency
+    for dependency in $extension_cache_memcached_dependencies; do
+      enable_extension "$dependency" extension
+    done
+  fi
+}