js port....

.github/workflows/issue.yml

@@ -14,5 +14,5 @@ jobs:
       - name: Check out repository code
         uses: actions/checkout@v2
       - run: ls "${{ github.workspace }}"
-      - run: "${{ github.workspace }}/action.py"
+      - run: "${{ github.workspace }}/action.js"
       - run: echo "job.status ${{ job.status }}."

action.js

@@ -0,0 +1,56 @@
+#!/usr/bin/env node
+
+const fs = require('fs');
+const readline = require('readline');
+
+// https://stackoverflow.com/questions/19269545/how-to-get-a-number-of-random-elements-from-an-array/19270021#19270021
+function getRandom(arr, n) {
+  var result = new Array(n),
+    len = arr.length,
+    taken = new Array(len);
+  if (n > len)
+    throw new RangeError("getRandom: more elements taken than available");
+  while (n--) {
+    var x = Math.floor(Math.random() * len);
+    result[n] = arr[x in taken ? taken[x] : x];
+    taken[x] = --len in taken ? taken[len] : len;
+  }
+  return result;
+}
+
+(async () => {
+let imageRe = /^image::{china-dictatorship-media-base}\/([^/[]+)/;
+let images = [];
+const fileStream = fs.createReadStream('README.adoc');
+const rl = readline.createInterface({
+  input: fileStream,
+  crlfDelay: Infinity
+});
+for await (const line of rl) {
+  let match = imageRe.exec(line);
+  if (match !== null) {
+    images.push(match[1]);
+  }
+}
+images = getRandom(images, 10);
+for (const image of images) {
+  console.log(`<img src="https://raw.githubusercontent.com/cirosantilli/china-dictatorship-media/master/${image}" width="600">`);
+}
+})()
+
+//import random
+//import re
+//
+//image_re = re.compile()
+//
+//images = []
+//with open('README.adoc', 'r') as f:
+//    for line in f:
+//        line = line.rstrip()
+//        match = image_re.match(line)
+//        if match:
+//            images.append(match.group(1))
+//
+//images = random.sample(images, 10)
+//for image in images:
+//    print('<img src="https://raw.githubusercontent.com/cirosantilli/china-dictatorship-media/master/{}" width="600">'.format(image))

action.py

@@ -1,18 +0,0 @@
-#!/usr/bin/env python3
-
-import random
-import re
-
-image_re = re.compile('^image::{china-dictatorship-media-base}/([^/[]+)')
-
-images = []
-with open('README.adoc', 'r') as f:
-    for line in f:
-        line = line.rstrip()
-        match = image_re.match(line)
-        if match:
-            images.append(match.group(1))
-
-images = random.sample(images, 10)
-for image in images:
-    print('https://raw.githubusercontent.com/cirosantilli/china-dictatorship-media/master/' + image)