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convert-files.js
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convert-files.js
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const pandoc = require('node-pandoc-promise')
const fs = require('fs-extra')
const path = require('path')
const glob = require('glob-promise')
const MEDIAWIKI_DIR_PAGES = './output/mediawiki/pages'
const MEDIAWIKI_DIR_ASSETS = './output/mediawiki/assets'
const MEDIAWIKI_REDIRECTS = './output/mediawiki/redirects.json'
const OUTPUT_ROOT_FOLDER = 'ff7-flat-wiki'
const PANDOC_DIR_PAGES = './output/pandoc/pages'
const OUTPUT_DIR_PAGES = `./output/markdown/${OUTPUT_ROOT_FOLDER}`
const OUTPUT_DIR_ASSETS = `./output/markdown/${OUTPUT_ROOT_FOLDER}/assets`
const getMediaWikiPageNames = async () => {
const mediaWikiPageNames = await glob(`**/*.mw`, {cwd: MEDIAWIKI_DIR_PAGES})
console.log('mediaWikiPageNames', mediaWikiPageNames)
return mediaWikiPageNames
}
const convertToMarkdown = async () => {
const mediaWikiPageNames = await getMediaWikiPageNames()
await fs.remove(PANDOC_DIR_PAGES)
const convertedPageNames = []
for (let i = 0; i < mediaWikiPageNames.length; i++) {
// for (let i = 0; i < 5; i++) {
const mediaWikiPageName = mediaWikiPageNames[i]
const markdownPageName = mediaWikiPageName.replace('.mw', '.md')
console.log('Converting', (i + 1), 'of', mediaWikiPageNames.length, ' - ', mediaWikiPageName)
const mediaWikiFile = path.join(MEDIAWIKI_DIR_PAGES, mediaWikiPageName)
const markdownFile = path.join(PANDOC_DIR_PAGES, markdownPageName)
const markdownDir = path.dirname(markdownFile)
// console.log('markdownFile', mediaWikiFile, '->', markdownFile, 'in', markdownDir)
await fs.ensureDir(markdownDir)
await pandoc(mediaWikiFile, ['-f', 'mediawiki', '-t', 'gfm', '-o', markdownFile, '--wrap=none'])
convertedPageNames.push(markdownPageName)
}
return convertedPageNames
}
const getMarkdownPageNames = async () => {
const markdownPageNames = await glob(`**/*.md`, {cwd: PANDOC_DIR_PAGES})
// console.log('markdownPageNames', markdownPageNames)
return markdownPageNames
}
const isImage = (fileName) => {
if (fileName.includes('.')) {
const ext = fileName.toLowerCase().substring(fileName.lastIndexOf('.') + 1)
switch (ext) {
case 'png': case 'jpeg': case 'jpg':
return true
}
}
return false
}
const applyRedirect = (link, redirects) => {
const potentialRedirects = redirects.filter(r => r.from === link)
if (potentialRedirects.length > 0 && link.toLowerCase().includes('engine')) {
console.log('redirect', link, potentialRedirects[0])
link = potentialRedirects[0].to
}
return link
}
const cleanLink = (link, currentPage, redirects) => {
if (link.startsWith('#')) {
link = `#${link.toLowerCase().replace(/[ _]/g, '-').replace('#', '')}`
} else if (!link.startsWith('http')) {
link = applyRedirect(link, redirects)
if (isImage(link)) {
link = `assets/${link}`
console.log('isImage', link)
} else {
link = `${link}`
if (link.includes('#')) {
const hashIndex = link.indexOf('#')
const hash = link.substring(hashIndex)
link = `${link.substring(0, hashIndex)}.md${hash}`
} else {
link = link + '.md'
}
}
let relativeLink = path.relative(currentPage, link)
relativeLink = relativeLink.substring(3)
// console.log('link', currentPage, link, relativeLink)
link = relativeLink
}
return link
}
const amendHTMLLink = (page, markdownPageName, redirects) => {
const regex = /href="([^"]*)"/g
let match
let replacements = []
while ((match = regex.exec(page)) !== null) {
if (match.index === regex.lastIndex) {
regex.lastIndex++
}
const wholeLink = match[0]
const href = match[1]
const link = cleanLink(href, markdownPageName, redirects)
// console.log('amendHTMLLink', wholeLink, href, link)
replacements.push({replace: wholeLink, with: `href="${link}"`})
}
for (let i = 0; i < replacements.length; i++) {
const replacement = replacements
page = page.replace(replacement[i].replace, replacement[i].with)
}
return page
}
const amendLink = (page, markdownPageName, redirects) => {
page = page.replace(/\[ /g, '[') // Some whitespace at the beginning of some links
page = page.replace(/<center>/g, '').replace(/<\/center>/g, '') // Lots of markdown links are wrapped in center blocks
const regex = /(\[.*\])\((.+)\)/g
let match
let replacements = []
while ((match = regex.exec(page)) !== null) {
if (match.index === regex.lastIndex) {
regex.lastIndex++
}
const wholeLink = match[0]
const linkTitle = match[1]
const initialLinkAndTitle = match[2]
let updatedLinkAndTitle = initialLinkAndTitle
let title = ''
if (updatedLinkAndTitle.includes('"')) {
const t1 = updatedLinkAndTitle.indexOf('"')
const t2 = updatedLinkAndTitle.lastIndexOf('"')
title = updatedLinkAndTitle.substring(t1, t2 + 1)
updatedLinkAndTitle = updatedLinkAndTitle.substring(0, t1 - 1)
// console.log('t1', t1, t2, title, '-' + updatedLinkAndTitle + '-')
}
updatedLinkAndTitle = cleanLink(updatedLinkAndTitle, markdownPageName, redirects)
if (title.length > 0) {
updatedLinkAndTitle = `${updatedLinkAndTitle}`
}
const updatedWholeLink = `${linkTitle}(${updatedLinkAndTitle})`
// console.log('match', wholeLink, '-', initialLinkAndTitle, '->', updatedWholeLink)
replacements.push({replace: wholeLink, with: updatedWholeLink})
}
for (let i = 0; i < replacements.length; i++) {
const replacement = replacements
page = page.replace(replacement[i].replace, replacement[i].with)
page = page.replace(replacement[i].replace, replacement[i].with)
}
// console.log('page', page)
return page
}
const addBreadcrumb = (page, markdownPageName, redirects) => {
const breadcrumbs = [{ title: 'Home', link: cleanLink(`Main_Page`, markdownPageName, redirects) }]
const prevSection = []
const sections = markdownPageName.replace('.md', '').split('/')
for (let i = 0; i < sections.length; i++) {
const section = sections[i]
prevSection.push(section)
breadcrumbs.push({ title: section.replace(/_/g, ' '), link: cleanLink(prevSection.join('/'), markdownPageName, redirects) })
}
const breadcrumbsMarkdown = breadcrumbs.map((b, i) => {
if (i === breadcrumbs.length - 1) {
return b.title
}
return `[${b.title}](${b.link})`
}).join(' > ')
// console.log('addBreadcrumb', markdownPageName, sections, breadcrumbs, breadcrumbsMarkdown)
page = `${breadcrumbsMarkdown}\n\n${page}`
return page
}
const addFrontMatter = (page, markdownPageName) => {
const title = markdownPageName.substring(markdownPageName.lastIndexOf('/') + 1, markdownPageName.lastIndexOf('.'))
page = `---\ntitle: ${title}\n---\n\n${page}`
return page
}
const amendLinks = async () => {
await fs.remove(OUTPUT_DIR_PAGES)
const markdownPageNames = await getMarkdownPageNames()
const redirects = await fs.readJson(MEDIAWIKI_REDIRECTS)
for (let i = 0; i < markdownPageNames.length; i++) {
const markdownPageName = markdownPageNames[i]
// console.log('Amending links', (i + 1), 'of', markdownPageNames.length, ' - ', markdownPageName)
const pandocFile = path.join(PANDOC_DIR_PAGES, markdownPageName)
const markdownFile = path.join(OUTPUT_DIR_PAGES, markdownPageName)
let page = await fs.readFile(pandocFile, 'utf8')
page = amendLink(page, markdownPageName, redirects)
page = amendHTMLLink(page, markdownPageName, redirects)
// page = addBreadcrumb(page, markdownPageName, redirects)
page = addFrontMatter(page, markdownPageName)
const markdownDir = path.dirname(markdownFile)
await fs.ensureDir(markdownDir)
await fs.writeFile(markdownFile, page)
}
}
const moveAssets = async () => {
await fs.remove(OUTPUT_DIR_ASSETS)
await fs.ensureDir(OUTPUT_DIR_ASSETS)
await fs.copy(MEDIAWIKI_DIR_ASSETS, OUTPUT_DIR_ASSETS)
}
const initConvertFiles = async () => {
try {
console.log('Converting to markdown: START')
await convertToMarkdown()
await amendLinks()
await moveAssets()
console.log('Converting to markdown: END')
} catch (error) {
console.error(`Converting to markdown: ERROR - ${error.message}`)
}
}
module.exports = {
initConvertFiles
}