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build/node_modules/http2-push-manifest/bin/http2-push-manifest

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+#!/usr/bin/env node
+
+/**
+ * Copyright 2015 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// jshint node: true
+'use strict';
+
+let nopt = require('nopt');
+let path = require('path');
+let Manifest = require('../lib/manifest');
+let pkg = require('../package.json');
+
+const SCRIPT_NAME = path.basename(__filename);
+
+const help = `${SCRIPT_NAME}: Generate a list of static resources for http2 push.
+
+Usage:
+    ${SCRIPT_NAME} -f path/to/file.html
+    ${SCRIPT_NAME} -f path/to/file.html -f path/to/file2.html ...
+
+Options:
+    -h|--help: print this message
+    -v|--version: print version number
+    -f|--file: file to discover resources in. Use multiple times to produce a mult-file manifest format.
+    -m|--manifest <filename>: Custom filename for the manifest file
+
+Examples:
+
+List all of the resources used in app/index.html, including sub-HTML Imports:
+
+    ${SCRIPT_NAME} -f app/index.html
+
+    {
+      "/css/app.css": {
+        "type": "style",
+        "weight": 1
+      },
+      "/js/app.js": {
+        "type": "script",
+        "weight": 1
+      },
+      ...
+    }
+
+List all the resources used in static/elements/elements.html:
+
+    ${SCRIPT_NAME} -f static/elements elements.html
+
+List all the resources app/index.html and page.html, and combine into a singe manifest:
+
+    ${SCRIPT_NAME} -f app/index.html -f page.html
+
+    {
+      "index.html": {
+        "/css/app.css": {
+          "type": "style",
+          "weight": 1
+        },
+        ...
+      },
+      "page.html": {
+        "/css/page.css": {
+          "type": "style",
+          "weight": 1
+        },
+        ...
+      }
+    }
+
+Using a custom filename:
+
+    ${SCRIPT_NAME} -f path/to/site/index.html -m push.json
+    ${SCRIPT_NAME} -f path/to/site/index.html --manifest push.json
+`;
+
+function printHelp() {
+  console.log(help);
+}
+
+function printVersion() {
+  console.log(`${SCRIPT_NAME}:`, pkg.version);
+}
+
+function notifyIfUpdateAvailable() {
+  try {
+    let updateNotifier = require('update-notifier');
+    updateNotifier({pkg: pkg}).notify();
+  } catch(e) {
+    // noop
+  }
+}
+
+let jsonOutput = {};
+
+function writeManifest(manifest, opt_content) {
+  manifest.write(opt_content);
+  console.log(`Wrote ${manifest.name}`);
+}
+
+function generateManifest(manifestName, files, singleFile) {
+  if (!files.length) {
+    let manifest = new Manifest({name: manifestName});
+    writeManifest(manifest, jsonOutput);
+    return;
+  }
+
+  let f = files[0];
+
+  // Make a path if one wasn't given. e.g. basic.html -> ./basic.html
+  if (f.indexOf(path.sep) === -1) {
+    f = `.${path.sep}${f}`;
+  }
+
+  let basePath = f.slice(0, f.lastIndexOf(path.sep))
+  let inputPath = f.slice(f.lastIndexOf(path.sep) + 1);
+
+  if (!basePath || !inputPath) {
+    printHelp();
+    process.exit(1);
+  }
+
+  let manifest = new Manifest({basePath, inputPath, name: manifestName});
+  manifest.generate().then(output => {
+    if (singleFile) {
+      writeManifest(manifest);
+      return;
+    }
+
+    jsonOutput[inputPath] = output.file;
+
+    // Remove processed file from list and proceed with next.
+    files.shift();
+    generateManifest(manifestName, files, singleFile);
+  }).catch(err => {
+    console.warn(err);
+  });
+}
+
+let args = nopt({
+  help: Boolean,
+  version: Boolean,
+  manifest: String,
+  file: [String, Array]
+}, {
+  'h': ['--help'],
+  'v': ['--version'],
+  'm': ['--manifest'],
+  'f': ['--file']
+});
+
+let files = args.file || [];
+let manifestName = args.manifest;
+// let basePath = args.argv.remain[0];
+// let inputPath = args.argv.remain[1];
+
+if (args.version) {
+  printVersion();
+  process.exit(0);
+}
+
+if (args.help || !files.length) {
+  printHelp();
+  process.exit(0);
+}
+
+notifyIfUpdateAvailable(); // Let user know if there's a newer version.
+
+generateManifest(manifestName, files, files.length < 2);
+
+