245 lines
7.4 KiB
JavaScript
245 lines
7.4 KiB
JavaScript
'use strict'
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const pug = require('pug')
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const marked = require('marked')
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const fs = require('fs').promises
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const unit = (...args) => null
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const log = process.env.VERBOSE ? console.log : unit
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const walk = async (path, filename) => {
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log('[walk]', path)
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const type = await fs.lstat(path)
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if (type.isFile()) return {type: 'file', path: path, name: filename || path, tags:[]}
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if (!type.isDirectory()) return null
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const files = await fs.readdir(path)
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return {
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type: 'folder',
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path: path,
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name: filename || path,
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tags: [],
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children: await Promise.all(files.map(file => walk(`${path}/${file}`, file)))
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}
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}
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const ext_static = ['.css', '.js', '.otf', '.png', '.svg', '.txt', 'client', 'server']
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const ext_md = ['.md', '.markdown']
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const ext_pug = ['.pug', '.jade']
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const suffix = file => ext => file.substring(file.length - ext.length) == ext ? ext : null
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const suffixl = (...l) => file => l.find(suffix(file))
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const is_static = suffixl(...ext_static)
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const is_md = suffixl(...ext_md)
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const is_pug = suffixl(...ext_pug)
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const is_templated = f => is_md(f) /* || is_rst(f) */
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const is_document = f => is_templated(f) || is_pug(f)
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const prefix = file => ext => file.substring(0, ext.length) == ext ? ext : null
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const prefixl = (...l) => file => l.find(prefix(file))
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const rm_prefix = (...l) => file => file.substring(prefixl(...l)(file).length)
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const rm_suffix = (...l) => file => file.substring(0, file.length - suffixl(...l)(file).length)
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const propagate_md_layout = (tree, markdown_template) => {
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if (tree.type == 'file' && is_templated(tree.name)) {
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tree.template = markdown_template
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log('[propagate_md_layout]', tree ? tree.path : null, markdown_template ? markdown_template.path : null)
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} else if (tree.type == 'folder') {
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const find_md_tpl = tree.children.filter(c => c.type == 'file' && c.name == '_markdown.pug')
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const new_md_tpl = find_md_tpl.length > 0 ? find_md_tpl[0] : markdown_template
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tree.children.forEach(c => propagate_md_layout(c, new_md_tpl))
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}
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return tree
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}
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const elagate = tree => {
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if (tree.type != 'folder') return tree
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const lh = e => log('[elagate]', e.path) && false
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tree.children = tree.children.filter(e => !(e.name[0] == '_') || lh(e))
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tree.children.forEach(elagate)
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return tree
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}
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const tag_document = tree => {
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if (tree.type == 'file' && is_document(tree.name) && tree.name[0] != '@') {
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tree.tags.push('document_leaf', 'document')
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log('[tag_document]', tree.path, 'document_leaf')
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} else if (tree.type == 'folder') {
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tree.children.forEach(tag_document)
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if(tree.children.some(c => c.tags.includes('document'))) {
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tree.tags.push('document_branch', 'document')
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log('[tag_document]', tree.path, 'document_branch')
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}
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}
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return tree
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}
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const reference_index = indexes => tree => {
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if (tree.type != 'folder') return tree;
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const index = tree.children.find(e => indexes.includes(e.name))
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if (index) {
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tree.index = index
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tree.tags.push('has_index')
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log('[reference_index]', tree.path, index.name)
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index.tags.push('is_index')
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}
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tree.children.forEach(reference_index(indexes))
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return tree;
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}
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const propagate_nice_name = prefix => tree => {
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const without_prefix = tree.path.substring(prefix.length)
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const splitted = without_prefix.split('/').filter(v => v.length > 0)
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if (splitted.length > 0) {
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tree.nice_path = splitted.slice(0, -1)
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tree.nice_name = splitted[splitted.length - 1].split('.')[0]
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tree.url = without_prefix
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log('[propagate_nice_name]', [...tree.nice_path, tree.nice_name].join('|'))
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}
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if (tree.type == 'folder') tree.children.forEach(propagate_nice_name(prefix))
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return tree
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}
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const prepare_copy = (old_prefix, new_prefix, exts) => tree => {
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if (tree.type == 'file' && is_static(tree.name)) {
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tree.generate = {
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cmd: 'copy',
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src: tree.path,
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out: new_prefix + rm_prefix(old_prefix)(tree.path)
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}
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log('[prepare_copy]',tree.generate.src,'->',tree.generate.out)
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} else if (tree.type == 'folder') {
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tree.children.forEach(prepare_copy(old_prefix, new_prefix, exts))
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}
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return tree
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}
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const prepare_pug = (old_prefix, new_prefix) => tree => {
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if (tree.type == 'file' && is_pug(tree.name)) {
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tree.old_url = tree.url
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tree.url = rm_prefix(old_prefix)(rm_suffix(...ext_pug)(tree.path)) + '.html'
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tree.generate = {
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cmd: 'pug',
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src: tree.path,
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out: new_prefix + tree.url
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}
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log('[prepare_pug]',tree.generate.src,'->',tree.generate.out)
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}
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else if (tree.type == 'folder') {
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tree.children.forEach(prepare_pug(old_prefix, new_prefix))
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}
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return tree
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}
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const prepare_md = (old_prefix, new_prefix) => tree => {
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if (tree.type == 'file' && is_md(tree.name)) {
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tree.old_url = tree.url
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tree.url = rm_prefix(old_prefix)(rm_suffix(...ext_md)(tree.path)) + '.html'
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tree.generate = {
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cmd: 'pug',
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src: tree.template.path,
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markdown: tree.path,
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out: new_prefix + tree.url
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}
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log('[prepare_md]',tree.generate.markdown,'+',tree.generate.src,'->',tree.generate.out)
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}
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else if (tree.type == 'folder') {
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tree.children.forEach(prepare_md(old_prefix, new_prefix))
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}
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return tree
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}
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const prepare_folder = (old_prefix, new_prefix) => tree => {
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if (tree.type == 'folder') {
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tree.generate = {
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cmd: 'mkdir',
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out: new_prefix + rm_prefix(old_prefix)(tree.path)
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}
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log('[prepare_folder]',tree.generate.out)
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tree.children.forEach(prepare_folder(old_prefix, new_prefix))
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}
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return tree
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}
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const do_folder = async tree => {
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if (!tree.generate || tree.generate.cmd != 'mkdir') return tree
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await fs.mkdir(tree.generate.out, { recursive: true })
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log('[do_folder]',tree.generate.out)
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await Promise.all(tree.children.map(do_folder))
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return tree
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}
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const do_copy = async tree => {
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if (tree.generate && tree.generate.cmd == 'copy') {
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await fs.copyFile(tree.generate.src, tree.generate.out)
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log('[do_copy]',tree.generate.out)
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} else if (tree.type == 'folder')
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await Promise.all(tree.children.map(do_copy))
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return tree
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}
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const do_pug = (prt, root) => async tree => {
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prt = prt || tree
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root = root || tree
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if (tree.generate && tree.generate.cmd == 'pug') {
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const html = pug.renderFile(tree.generate.src, {
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markdown: tree.generate.markdown ? marked(await fs.readFile(tree.generate.markdown, 'utf-8')) : null,
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root: root,
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prt: prt,
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element: tree
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})
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await fs.writeFile(tree.generate.out, html)
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log('[do_pug]',tree.generate.out)
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} else if (tree.type == 'folder')
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await Promise.all(tree.children.map(do_pug(tree,root)))
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return tree
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}
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const rm_tree = t => {
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if (t == null) return
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if (t.type == 'file') {
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log('[do_clean] file', t.path)
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return fs.unlink(t.path)
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}
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return Promise
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.all(t.children.map(rm_tree))
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.then(_ => {
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log('[do_clean] path', t.path)
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return fs.rmdir(t.path)
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})
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}
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const do_clean = path => tree =>
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walk(path)
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.catch(_ => null)
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.then(rm_tree)
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.then(_ => tree)
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const conf = { src: './src', dest: './static'}
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walk(conf.src)
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.then(propagate_md_layout)
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.then(elagate)
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.then(tag_document)
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.then(reference_index(['index.md', 'index.pug']))
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.then(propagate_nice_name(conf.src))
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.then(prepare_copy(conf.src, conf.dest))
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.then(prepare_pug(conf.src, conf.dest))
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.then(prepare_md(conf.src, conf.dest))
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.then(prepare_folder(conf.src, conf.dest))
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//.then(v => {log(v) ; return v})
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.then(do_clean(conf.dest))
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.then(do_folder)
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.then(do_copy)
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.then(do_pug())
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.catch(console.error)
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