build: more advanced import from medium

See xdamman/mediumexporter#26
and xdamman/mediumexporter#4

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "tools/mediumexporter"]
+	path = tools/mediumexporter
+	url = [email protected]:xdamman/mediumexporter.git

medium-import.js

@@ -0,0 +1,73 @@
+const fs = require('fs-extra');
+const path = require('path');
+const mediumexporter = require('./tools/mediumexporter/index.js');
+
+async function importer(link, dir, name) {
+  return mediumexporter.getPost(link, {
+    output: path.resolve(dir, name),
+    hugo: true,
+    frontmatter: true
+  });
+}
+
+const getOption = name => {
+  const indexOf = process.argv.indexOf(`--${name}`);
+  return indexOf === -1 ? '' : process.argv[indexOf + 1];
+};
+
+const options = {
+  name: getOption('name'),
+  from: getOption('from'),
+  serie: getOption('serie')
+};
+
+const usage = `
+  use as follow:
+
+  medium-import.js --name=<shortname> --from=<medium-url> [--serie=<serie-name>]
+
+  name: file and folder name (required)
+  from: medium url from which to import (required)
+  serie: will create the new folder in a new or existing "serie-name" folder (false by default)
+`;
+
+if (!options.name || !options.from) {
+  console.log(usage);
+  process.exit(1);
+}
+
+(async function() {
+  const dir = path.resolve(__dirname, options.serie);
+
+  fs.ensureDirSync(dir);
+
+  console.log('generating markdown...\n')
+
+  await importer(options.from, dir, options.name);
+
+  const mdPath = path.resolve(dir, options.name, 'index.md');
+
+  if (!fs.existsSync(mdPath)) {
+    console.log('no markdown generated!');
+    process.exit(1);
+  } else {
+    console.log(`\nmarkdown generated at:\n${mdPath}\n`);
+  }
+
+  const mediumMd = fs.readFileSync(mdPath, 'utf8');
+  const title = mediumMd.match(/(?<=^---[\s\S]*title:[\s]+).+(?=[\s\S]*---)/)[0] || options.name;
+  const mediumMeta = mediumMd.match(/(?<=^---[\s])[\s\S]*?(?=---)/)[0];
+  const devtoMd = mediumMd.replace(
+    /^---[\s\S]*?---/,
+    `---
+title: ${title}
+published: false
+description: 
+tags:
+series: ${options.serie || ''}
+---`
+  );
+
+  fs.writeFileSync(mdPath, devtoMd, 'utf8');
+  fs.writeFileSync(path.join(dir, options.name, 'medium.yaml'), mediumMeta, 'utf8');
+})();

package.json

@@ -13,6 +13,6 @@
   "devDependencies": {
     "convert-svg-to-png": "^0.5.0",
     "diagrams": "^0.10.0",
-    "mediumexporter": "^0.1.6"
+    "fs-extra": "^8.1.0"
   }
 }