transfer octopress post to hugo

octopress2hugo

'use strict';

var fs = require('fs')
var path = require('path')

var yaml = require('js-yaml');

var files = fs.readdirSync(__dirname);
var dest = './dest'

files.forEach(convert)

function convert(filename) {
    var re = /^\d{4}-\d{2}-\d{2}-/
    var mdRE = /\.(md|markdown)$/
    var needRename = re.test(filename)
    var newFilename = needRename
        ? filename.replace(re, '').replace(mdRE, '.md')
        : filename
    var realFileName = path.join(dest, newFilename)

    if (mdRE.test(filename)) {
        var originContent = fs.readFileSync(filename).toString()
        var yamlStart = originContent.indexOf('---')
        var yamlEnd = originContent.indexOf('---', 3)
        // console.log('Start: %s | End: %s', yamlStart, yamlEnd)
        var yamlHeader = originContent.substr(yamlStart, yamlEnd)

        try {
            var data = yaml.load(yamlHeader)
        } catch (err) {
            console.log(err)
            return false;
        }

        var toml = `+++
title = "${data.title}"
isCJKLanguage = true
date = "${data.date}"
categories = ${getArrayValue(data.categories)}
tags = ${getArrayValue(data.tags)}
+++`

        function getArrayValue(data) { return data ? JSON.stringify(data) : "[]" }

        var result = toml + originContent.substr(yamlEnd + 3)
        console.log('===== %s =====', newFilename)
        console.log(toml)

        if (!fs.existsSync(dest)) { fs.mkdirSync(dest) }

        fs.writeFileSync(realFileName, result, 'utf-8')

        // console.log('===== before =====')
        // console.log(yamlHeader)
        // console.log('===== after =====')
        // console.log(toml)
        // console.log('\n')
    }
}