All HTML files will be enriched once generated

Signed-off-by: Louis Vallat <louis@louis-vallat.xyz>

Dockerfile

@@ -2,14 +2,15 @@ FROM alpine AS builder
 
 WORKDIR /root
 
-COPY src ./src
+COPY . .
-COPY ssg5 .
 
-RUN apk --no-cache add gcc git make musl-dev && \
+RUN apk --no-cache add gcc git make musl-dev npm && \
     git clone -b VERSION_0_10_0 https://github.com/kristapsdz/lowdown.git && \
     cd lowdown && ./configure && make && make regress && make install && cd .. && \
-    chmod u+x ./ssg5 && mkdir dst && \
+    npm install && \
-    ./ssg5 ./src/ ./dst/ "Le blog de Louis Vallat" "https://blog.louis-vallat.xyz" && rm dst/.files
+    chmod u+x ./ssg5 && mkdir -p dst && \
+    ./ssg5 ./src/ ./dst/ "Le blog de Louis Vallat" "https://blog.louis-vallat.xyz" && rm dst/.files && \
+    node ./enrich_codeblocks.js
 
 FROM nginx
 

enrich_codeblocks.js

@@ -0,0 +1,22 @@
+const Prism = require('prismjs');
+const fs = require('fs');
+const cheerio = require('cheerio');
+const loadLanguages = require('prismjs/components/');
+const fsc = require('fs-cheerio');
+
+loadLanguages([
+    'rust', 'py', 'cpp', 'c', 'git'
+]);
+
+fs.readdirSync("./dst/").filter(e => e.endsWith(".html")).forEach(file => {
+    console.log("Enriching " + file)
+    fsc.readFile("./dst/" + file).then(function ($) {
+        $('*[class^="language-"]').replaceWith(function () { 
+            return $(this).html(Prism.highlight(
+                $(this).text(),
+                Prism.languages[$(this).attr('class').split('-')[1]])
+            );
+        });
+        fsc.writeFile("./dst/" + file, $);
+    });
+});

package.json

@@ -0,0 +1,7 @@
+{
+  "dependencies": {
+    "cheerio": "^1.0.0-rc.10",
+    "fs-cheerio": "^3.0.0",
+    "prismjs": "^1.26.0"
+  }
+}