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project.ts
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project.ts
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import CleanCSS from 'https://esm.sh/clean-css@4.2.3?no-check'
import marked from 'https://esm.sh/marked@1.2.0'
import postcss, { AcceptedPlugin } from 'https://esm.sh/postcss@8.1.4'
import { minify } from 'https://esm.sh/terser@5.3.2'
import { safeLoadFront } from 'https://esm.sh/yaml-front-matter@4.1.0'
import { Request } from './api.ts'
import { EventEmitter } from './events.ts'
import { ensureTextFile, existsDirSync, existsFileSync } from './fs.ts'
import { createHtml } from './html.ts'
import log from './log.ts'
import { getPagePath, RouteModule, Routing } from './routing.ts'
import { colors, ensureDir, fromStreamReader, path, ServerRequest, Sha1, walk } from './std.ts'
import { compile } from './tsc/compile.ts'
import type { APIHandler, Config, RouterURL } from './types.ts'
import util, { hashShort, MB, reHashJs, reHttp, reLocaleID, reMDExt, reModuleExt, reStyleModuleExt } from './util.ts'
import { createHTMLDocument } from './vendor/deno-dom/document.ts'
import less from './vendor/less/less.js'
import { version } from './version.ts'
interface Module {
id: string
url: string
loader: string
isRemote: boolean
sourceFilePath: string
sourceHash: string
deps: Dep[]
jsFile: string
jsContent: string
jsSourceMap: string
hash: string
}
interface Dep {
url: string
hash: string
isStyle?: boolean
isData?: boolean
external?: boolean
}
interface RenderResult {
url: RouterURL
status: number
head: string[]
scripts: Record<string, any>[]
body: string
data: Record<string, string> | null
}
/**
* A Project to manage the Aleph.js appliaction.
* core functions include:
* - compile source code
* - manage deps
* - apply plugins
* - map page/API routes
* - watch file changes
* - call APIs
* - SSR/SSG
*/
export class Project {
readonly appRoot: string
readonly mode: 'development' | 'production'
readonly config: Readonly<Required<Config>> & { __file?: string }
readonly importMap: Readonly<{ imports: Record<string, string> }>
readonly ready: Promise<void>
#modules: Map<string, Module> = new Map()
#routing: Routing = new Routing()
#apiRouting: Routing = new Routing()
#fsWatchListeners: Array<EventEmitter> = []
#renderer: { renderPage: CallableFunction } = { renderPage: () => void 0 }
#rendered: Map<string, Map<string, RenderResult>> = new Map()
#postcssPlugins: Record<string, AcceptedPlugin> = {}
#cleanCSS = new CleanCSS({ compatibility: '*' /* Internet Explorer 10+ */ })
constructor(appDir: string, mode: 'development' | 'production', reload = false) {
this.appRoot = path.resolve(appDir)
this.mode = mode
this.config = {
srcDir: existsDirSync(path.join(this.appRoot, '/src/pages')) ? '/src' : '/',
outputDir: '/dist',
baseUrl: '/',
defaultLocale: 'en',
env: {},
locales: [],
ssr: {
fallback: '_fallback.html'
},
buildTarget: mode === 'development' ? 'es2018' : 'es2015',
sourceMap: false,
reactUrl: 'https://esm.sh/react@17.0.1',
reactDomUrl: 'https://esm.sh/react-dom@17.0.1',
plugins: [],
postcss: {
plugins: [
'autoprefixer'
]
}
}
this.importMap = { imports: {} }
this.ready = (async () => {
const t = performance.now()
await this._loadConfig()
await this._init(reload)
log.debug('init project in ' + Math.round(performance.now() - t) + 'ms')
})()
}
get isDev() {
return this.mode === 'development'
}
get srcDir() {
return path.join(this.appRoot, this.config.srcDir)
}
get buildDir() {
return path.join(this.appRoot, '.aleph', this.mode + '.' + this.config.buildTarget)
}
isHMRable(moduleID: string) {
if (reHttp.test(moduleID)) {
return false
}
if (reStyleModuleExt.test(moduleID)) {
return true
}
if (reMDExt.test(moduleID)) {
return moduleID.startsWith('/pages/')
}
if (reModuleExt.test(moduleID)) {
return moduleID === '/404.js' ||
moduleID === '/app.js' ||
moduleID.startsWith('/pages/') ||
moduleID.startsWith('/components/')
}
const plugin = this.config.plugins.find(p => p.test.test(moduleID))
if (plugin?.acceptHMR) {
return true
}
return false
}
isSSRable(pathname: string): boolean {
const { ssr } = this.config
if (util.isPlainObject(ssr)) {
if (ssr.include) {
for (let r of ssr.include) {
if (!r.test(pathname)) {
return false
}
}
}
if (ssr.exclude) {
for (let r of ssr.exclude) {
if (r.test(pathname)) {
return false
}
}
}
return true
}
return ssr
}
getModule(id: string): Module | null {
if (this.#modules.has(id)) {
return this.#modules.get(id)!
}
return null
}
getModuleByPath(pathname: string): Module | null {
const { baseUrl } = this.config
let modId = pathname
if (baseUrl !== '/') {
modId = util.trimPrefix(modId, baseUrl)
}
if (modId.startsWith('/_aleph/')) {
modId = util.trimPrefix(modId, '/_aleph')
}
if (modId.startsWith('/-/')) {
modId = '//' + util.trimSuffix(util.trimPrefix(modId, '/-/'), '.js')
if (!reStyleModuleExt.test(modId)) {
modId = modId + '.js'
}
} else if (modId.endsWith('.js')) {
let id = modId.slice(0, modId.length - 3)
if (reHashJs.test(modId)) {
id = modId.slice(0, modId.length - (1 + hashShort + 3))
}
if (reMDExt.test(id) || reStyleModuleExt.test(id)) {
modId = id
} else {
modId = id + '.js'
}
}
if (!this.#modules.has(modId) && modId.endsWith('.js')) {
modId = util.trimSuffix(modId, '.js')
}
if (!this.#modules.has(modId)) {
log.warn(`can't get the module by path '${pathname}(${modId})'`)
}
return this.getModule(modId)
}
createFSWatcher(): EventEmitter {
const e = new EventEmitter()
this.#fsWatchListeners.push(e)
return e
}
removeFSWatcher(e: EventEmitter) {
e.removeAllListeners()
const index = this.#fsWatchListeners.indexOf(e)
if (index > -1) {
this.#fsWatchListeners.splice(index, 1)
}
}
async callAPI(req: ServerRequest, loc: { pathname: string, search?: string }): Promise<APIHandler | null> {
const [url] = this.#apiRouting.createRouter({ ...loc, pathname: decodeURI(loc.pathname) })
if (url.pagePath != '') {
const moduleID = url.pagePath + '.js'
if (this.#modules.has(moduleID)) {
try {
const { default: handle } = await import('file://' + this.#modules.get(moduleID)!.jsFile)
if (util.isFunction(handle)) {
await handle(new Request(req, url.pathname, url.params, url.query))
} else {
req.respond({
status: 500,
headers: new Headers({ 'Content-Type': 'application/json; charset=utf-8' }),
body: JSON.stringify({ error: { status: 404, message: "handle not found" } })
}).catch(err => log.warn('ServerRequest.respond:', err.message))
}
} catch (err) {
req.respond({
status: 500,
headers: new Headers({ 'Content-Type': 'application/json; charset=utf-8' }),
body: JSON.stringify({ error: { status: 500, message: err.message } })
}).catch(err => log.warn('ServerRequest.respond:', err.message))
log.error('callAPI:', err)
}
}
} else {
req.respond({
status: 404,
headers: new Headers({ 'Content-Type': 'application/javascript; charset=utf-8' }),
body: JSON.stringify({ error: { status: 404, message: 'page not found' } })
}).catch(err => log.warn('ServerRequest.respond:', err.message))
}
return null
}
async getSSRData(loc: { pathname: string, search?: string }): Promise<[number, any]> {
if (!this.isSSRable(loc.pathname)) {
return [404, null]
}
const { status, data } = await this._renderPage(loc)
return [status, data]
}
getPreloadScripts() {
const { baseUrl } = this.config
const scripts = [
'deno.land/x/aleph/aleph.js',
'deno.land/x/aleph/context.js',
'deno.land/x/aleph/error.js',
'deno.land/x/aleph/events.js',
'deno.land/x/aleph/routing.js',
'deno.land/x/aleph/util.js'
]
return scripts.map(src => ({ src: `${baseUrl}_aleph/-/${src}`, type: 'module', preload: true }))
}
async getPageHtml(loc: { pathname: string, search?: string }): Promise<[number, string, Record<string, string> | null]> {
if (!this.isSSRable(loc.pathname)) {
const [url] = this.#routing.createRouter(loc)
return [url.pagePath === '' ? 404 : 200, await this.getSPAIndexHtml(), null]
}
const { baseUrl } = this.config
const mainModule = this.#modules.get('/main.js')!
const { url, status, head, scripts, body, data } = await this._renderPage(loc)
const html = createHtml({
lang: url.locale,
head: head,
scripts: [
data ? { type: 'application/json', innerText: JSON.stringify(data), id: 'ssr-data' } : '',
{ src: util.cleanPath(`${baseUrl}/_aleph/main.${mainModule.hash.slice(0, hashShort)}.js`), type: 'module' },
...this.getPreloadScripts(),
...scripts
],
body,
minify: !this.isDev
})
return [status, html, data]
}
async getSPAIndexHtml() {
const { baseUrl, defaultLocale } = this.config
const mainModule = this.#modules.get('/main.js')!
const customLoading = await this._renderLoadingPage()
const html = createHtml({
lang: defaultLocale,
scripts: [
{ src: util.cleanPath(`${baseUrl}/_aleph/main.${mainModule.hash.slice(0, hashShort)}.js`), type: 'module' },
{ src: util.cleanPath(`${baseUrl}/_aleph/-/deno.land/x/aleph/nomodule.js${this.isDev ? '?dev' : ''}`), nomodule: true },
...this.getPreloadScripts()
],
head: customLoading?.head || [],
body: `<main>${customLoading?.body || ''}</main>`,
minify: !this.isDev
})
return html
}
/** build the application to a static site(SSG) */
async build() {
const start = performance.now()
const outputDir = path.join(this.srcDir, this.config.outputDir)
const distDir = path.join(outputDir, '_aleph')
const outputModules = new Set<string>()
const lookup = (moduleID: string) => {
if (this.#modules.has(moduleID) && !outputModules.has(moduleID)) {
outputModules.add(moduleID)
const { deps } = this.#modules.get(moduleID)!
deps.forEach(({ url }) => {
const { id } = this._moduleFromURL(url)
lookup(id)
})
}
}
// wait for project ready
await this.ready
// lookup output modules
this.#routing.lookup(path => path.forEach(r => lookup(r.module.id)))
lookup('/main.js')
lookup('/404.js')
lookup('/app.js')
lookup('//deno.land/x/aleph/nomodule.js')
lookup('//deno.land/x/aleph/tsc/tslib.js')
if (existsDirSync(outputDir)) {
await Deno.remove(outputDir, { recursive: true })
}
await ensureDir(outputDir)
await ensureDir(distDir)
// ssg
const { ssr } = this.config
const SPAIndexHtml = await this.getSPAIndexHtml()
if (ssr) {
log.info(colors.bold('- Pages (SSG)'))
const paths = new Set(this.#routing.paths)
if (typeof ssr === 'object' && ssr.staticPaths) {
ssr.staticPaths.forEach(path => paths.add(path))
}
await Promise.all(Array.from(paths).map(async pathname => {
if (this.isSSRable(pathname)) {
const [status, html, data] = await this.getPageHtml({ pathname })
if (status == 200) {
const htmlFile = path.join(outputDir, pathname, 'index.html')
await ensureTextFile(htmlFile, html)
if (data) {
const dataFile = path.join(outputDir, '_aleph/data', pathname, 'data.js')
await ensureTextFile(dataFile, `export default ` + JSON.stringify(data))
}
log.info(' ○', pathname, colors.dim('• ' + util.bytesString(html.length)))
} else if (status == 404) {
log.info(' ○', colors.dim(pathname), colors.red(`Page not found`))
} else if (status == 500) {
log.info(' ○', colors.dim(pathname), colors.red(`Error 505`))
}
}
}))
const fbHtmlFile = path.join(outputDir, util.isPlainObject(ssr) && ssr.fallback ? ssr.fallback : '_fallback.html')
await ensureTextFile(fbHtmlFile, SPAIndexHtml)
} else {
await ensureTextFile(path.join(outputDir, 'index.html'), SPAIndexHtml)
}
// write 404 page
const { baseUrl } = this.config
const { url, head, scripts, body, data } = await this._render404Page()
const mainModule = this.#modules.get('/main.js')!
const e404PageHtml = createHtml({
lang: url.locale,
head: head,
scripts: [
data ? { type: 'application/json', innerText: JSON.stringify(data), id: 'ssr-data' } : '',
{ src: util.cleanPath(`${baseUrl}/_aleph/main.${mainModule.hash.slice(0, hashShort)}.js`), type: 'module' },
{ src: util.cleanPath(`${baseUrl}/_aleph/-/deno.land/x/aleph/nomodule.js${this.isDev ? '?dev' : ''}`), nomodule: true },
...this.getPreloadScripts(),
...scripts
],
body,
minify: !this.isDev
})
await ensureTextFile(path.join(outputDir, '404.html'), e404PageHtml)
// copy public assets
const publicDir = path.join(this.appRoot, 'public')
if (existsDirSync(publicDir)) {
log.info(colors.bold('- Public Assets'))
for await (const { path: p } of walk(publicDir, { includeDirs: false, skip: [/\.DS_Store$/] })) {
const rp = util.trimPrefix(p, publicDir)
const fp = path.join(outputDir, rp)
const fi = await Deno.lstat(p)
await ensureDir(path.dirname(fp))
await Deno.copyFile(p, fp)
log.info(' ✹', rp.split('\\').join('/'), colors.dim('•'), colorfulBytesString(fi.size))
}
}
const moduleState = {
deps: { bytes: 0, count: 0 },
modules: { bytes: 0, count: 0 },
styles: { bytes: 0, count: 0 }
}
const logModule = (key: 'deps' | 'modules' | 'styles', size: number) => {
moduleState[key].bytes += size
moduleState[key].count++
}
// write modules
const { sourceMap } = this.config
await Promise.all(Array.from(outputModules).map((moduleID) => {
const { sourceFilePath, loader, isRemote, jsContent, jsSourceMap, hash } = this.#modules.get(moduleID)!
const saveDir = path.join(distDir, path.dirname(sourceFilePath))
const name = path.basename(sourceFilePath).replace(reModuleExt, '')
const jsFile = path.join(saveDir, name + (isRemote ? '' : '.' + hash.slice(0, hashShort))) + '.js'
if (isRemote) {
logModule('deps', jsContent.length)
} else {
if (loader === 'css') {
logModule('styles', jsContent.length)
} else {
logModule('modules', jsContent.length)
}
}
return Promise.all([
ensureTextFile(jsFile, jsContent),
sourceMap && jsSourceMap ? ensureTextFile(jsFile + '.map', jsSourceMap) : Promise.resolve(),
])
}))
const { deps, modules, styles } = moduleState
log.info(colors.bold('- Modules'))
log.info(' {}', colors.bold(deps.count.toString()), 'deps', colors.dim(`• ${util.bytesString(deps.bytes)} (mini, uncompress)`))
log.info(' {}', colors.bold(modules.count.toString()), 'modules', colors.dim(`• ${util.bytesString(modules.bytes)} (mini, uncompress)`))
log.info(' {}', colors.bold(styles.count.toString()), 'styles', colors.dim(`• ${util.bytesString(styles.bytes)} (mini, uncompress)`))
log.info(`Done in ${Math.round(performance.now() - start)}ms`)
}
private async _loadConfig() {
const importMapFile = path.join(this.appRoot, 'import_map.json')
if (existsFileSync(importMapFile)) {
const { imports } = JSON.parse(await Deno.readTextFile(importMapFile))
Object.assign(this.importMap, { imports: Object.assign({}, this.importMap.imports, imports) })
}
const { ALEPH_IMPORT_MAP, navigator } = globalThis as any
if (ALEPH_IMPORT_MAP) {
const { imports } = ALEPH_IMPORT_MAP
Object.assign(this.importMap, { imports: Object.assign({}, this.importMap.imports, imports) })
}
const config: Record<string, any> = {}
for (const name of Array.from(['aleph.config', 'config']).map(name => ['ts', 'js', 'mjs', 'json'].map(ext => `${name}.${ext}`)).flat()) {
const p = path.join(this.appRoot, name)
if (existsFileSync(p)) {
if (name.endsWith('.json')) {
const conf = JSON.parse(await Deno.readTextFile(p))
if (util.isPlainObject(conf)) {
Object.assign(config, conf)
Object.assign(this.config, { __file: name })
}
} else {
let { default: conf } = await import('file://' + p)
if (util.isFunction(conf)) {
conf = await conf()
}
if (util.isPlainObject(conf)) {
Object.assign(config, conf)
Object.assign(this.config, { __file: name })
}
}
break
}
}
const {
srcDir,
ouputDir,
baseUrl,
buildTarget,
sourceMap,
defaultLocale,
locales,
ssr,
env,
plugins,
postcss,
} = config
if (util.isNEString(srcDir)) {
Object.assign(this.config, { srcDir: util.cleanPath(srcDir) })
}
if (util.isNEString(ouputDir)) {
Object.assign(this.config, { ouputDir: util.cleanPath(ouputDir) })
}
if (util.isNEString(baseUrl)) {
Object.assign(this.config, { baseUrl: util.cleanPath(encodeURI(baseUrl)) })
}
if (/^es(20\d{2}|next)$/i.test(buildTarget)) {
Object.assign(this.config, { buildTarget: buildTarget.toLowerCase() })
}
if (typeof sourceMap === 'boolean') {
Object.assign(this.config, { sourceMap })
}
if (util.isNEString(defaultLocale)) {
navigator.language = defaultLocale
Object.assign(this.config, { defaultLocale })
}
if (util.isArray(locales)) {
Object.assign(this.config, { locales: Array.from(new Set(locales.filter(l => reLocaleID.test(l)))) })
locales.filter(l => !reLocaleID.test(l)).forEach(l => log.warn(`invalid locale ID '${l}'`))
}
if (typeof ssr === 'boolean') {
Object.assign(this.config, { ssr })
} else if (util.isPlainObject(ssr)) {
const fallback = util.isNEString(ssr.fallback) ? util.ensureExt(ssr.fallback, '.html') : '404.html'
const include = util.isArray(ssr.include) ? ssr.include.map(v => util.isNEString(v) ? new RegExp(v) : v).filter(v => v instanceof RegExp) : []
const exclude = util.isArray(ssr.exclude) ? ssr.exclude.map(v => util.isNEString(v) ? new RegExp(v) : v).filter(v => v instanceof RegExp) : []
const staticPaths = util.isArray(ssr.staticPaths) ? ssr.staticPaths.map(v => util.cleanPath(v)) : []
Object.assign(this.config, { ssr: { fallback, include, exclude, staticPaths } })
}
if (util.isPlainObject(env)) {
Object.assign(this.config, { env })
}
if (util.isNEArray(plugins)) {
Object.assign(this.config, { plugins })
}
if (util.isPlainObject(postcss) && util.isArray(postcss.plugins)) {
Object.assign(this.config, { postcss })
} else if (existsFileSync(path.join(this.appRoot, 'postcss.config.json'))) {
const text = await Deno.readTextFile(path.join(this.appRoot, 'postcss.config.json'))
try {
const postcss = JSON.parse(text)
if (util.isPlainObject(postcss) && util.isArray(postcss.plugins)) {
Object.assign(this.config, { postcss })
}
} catch (e) {
log.warn('bad postcss.config.json', e.message)
}
}
// update routing
this.#routing = new Routing([], this.config.baseUrl, this.config.defaultLocale, this.config.locales)
}
private async _init(reload: boolean) {
const walkOptions = { includeDirs: false, exts: ['.js', '.ts', '.mjs'], skip: [/^\./, /\.d\.ts$/i, /\.(test|spec|e2e)\.m?(j|t)sx?$/i] }
const apiDir = path.join(this.srcDir, 'api')
const pagesDir = path.join(this.srcDir, 'pages')
if (!(existsDirSync(pagesDir))) {
log.fatal(`'pages' directory not found.`)
}
if (reload) {
if (existsDirSync(this.buildDir)) {
await Deno.remove(this.buildDir, { recursive: true })
}
await ensureDir(this.buildDir)
}
// import postcss plugins
await Promise.all(this.config.postcss.plugins.map(async p => {
let name: string
if (typeof p === 'string') {
name = p
} else {
name = p.name
}
const { default: Plugin } = await import(`https://esm.sh/${name}?external=postcss@8.1.4&no-check`)
this.#postcssPlugins[name] = Plugin
}))
// inject virtual browser gloabl objects
Object.assign(globalThis, {
__createHTMLDocument: () => createHTMLDocument(),
document: createHTMLDocument(),
navigator: {
connection: {
downlink: 1.5,
effectiveType: "3g",
onchange: null,
rtt: 300,
saveData: false,
},
cookieEnabled: false,
deviceMemory: 0,
hardwareConcurrency: 0,
language: 'en',
maxTouchPoints: 0,
onLine: true,
userAgent: `Deno/${Deno.version.deno}`,
vendor: "Deno Land",
},
location: {
protocol: 'http:',
host: 'localhost',
hostname: 'localhost',
port: '',
href: 'https://localhost/',
origin: 'https://localhost',
pathname: '/',
search: '',
hash: '',
reload() { },
replace() { },
toString() { return this.href },
},
innerWidth: 1920,
innerHeight: 1080,
devicePixelRatio: 1,
$RefreshReg$: () => { },
$RefreshSig$: () => (type: any) => type,
})
// inject env variables
Object.entries({
...this.config.env,
__version: version,
__buildMode: this.mode,
__buildTarget: this.config.buildTarget,
}).forEach(([key, value]) => Deno.env.set(key, value))
// change current work dir to appDoot
Deno.chdir(this.appRoot)
for await (const { path: p, } of walk(this.srcDir, { ...walkOptions, maxDepth: 1, exts: [...walkOptions.exts, '.jsx', '.tsx'] })) {
const name = path.basename(p)
switch (name.replace(reModuleExt, '')) {
case 'app':
case '404':
case 'loading':
await this._compile('/' + name)
break
}
}
if (existsDirSync(apiDir)) {
for await (const { path: p } of walk(apiDir, walkOptions)) {
const mod = await this._compile('/api' + util.trimPrefix(p, apiDir).split('\\').join('/'))
this.#apiRouting.update(this._getRouteModule(mod))
}
}
for await (const { path: p } of walk(pagesDir, { ...walkOptions, exts: [...walkOptions.exts, '.jsx', '.tsx', '.md'] })) {
const rp = util.trimPrefix(p, pagesDir).split('\\').join('/')
const mod = await this._compile('/pages' + rp)
this.#routing.update(this._getRouteModule(mod))
}
const precompileUrls = [
'https://deno.land/x/aleph/bootstrap.ts',
'https://deno.land/x/aleph/nomodule.ts',
'https://deno.land/x/aleph/tsc/tslib.js',
]
if (this.isDev) {
precompileUrls.push('https://deno.land/x/aleph/hmr.ts')
}
for (const url of precompileUrls) {
await this._compile(url)
}
await this._compile('https://deno.land/x/aleph/renderer.ts', { forceTarget: 'es2020' })
await this._createMainModule()
const { renderPage } = await import('file://' + this.#modules.get('//deno.land/x/aleph/renderer.js')!.jsFile)
this.#renderer = { renderPage }
log.info(colors.bold(`Aleph.js v${version}`))
if (this.config.__file) {
log.info(colors.bold('- Config'))
log.info(' ▲', this.config.__file)
}
log.info(colors.bold('- Global'))
if (this.#modules.has('/app.js')) {
log.info(' ✓', 'Custom App')
}
if (this.#modules.has('/404.js')) {
log.info(' ✓', 'Custom 404 Page')
}
if (this.#modules.has('/loading.js')) {
log.info(' ✓', 'Custom Loading Page')
}
if (this.isDev) {
if (this.#apiRouting.paths.length > 0) {
log.info(colors.bold('- APIs'))
}
for (const path of this.#apiRouting.paths) {
log.info(' λ', path)
}
log.info(colors.bold('- Pages'))
for (const path of this.#routing.paths) {
const isIndex = path == '/'
log.info(' ○', path, isIndex ? colors.dim('(index)') : '')
}
}
if (this.isDev) {
this._watch()
}
}
private async _watch() {
const w = Deno.watchFs(this.srcDir, { recursive: true })
log.info('Start watching code changes...')
for await (const event of w) {
for (const p of event.paths) {
const path = util.cleanPath(util.trimPrefix(p, this.srcDir))
// handle `api` dir remove directly
const validated = (() => {
// ignore `.aleph` and output directories
if (path.startsWith('/.aleph/') || path.startsWith(this.config.outputDir)) {
return false
}
if (reModuleExt.test(path)) {
switch (path.replace(reModuleExt, '')) {
case '/404':
case '/app':
return true
default:
if (path.startsWith('/api/')) {
return true
}
}
}
if (path.startsWith('/pages/') && (reModuleExt.test(path) || reMDExt.test(path))) {
return true
}
let isDep = false
for (const { deps } of this.#modules.values()) {
if (deps.findIndex(dep => dep.url === path) > -1) {
isDep = true
break
}
}
if (isDep) {
return true
}
return this.config.plugins.findIndex(p => p.test.test(path)) > -1
})()
if (validated) {
const moduleID = path.replace(reModuleExt, '.js')
util.debounceX(moduleID, () => {
const shouldUpdateMainModule = (() => {
switch (moduleID) {
case '/404.js':
case '/app.js':
return true
default:
if (moduleID.startsWith('/pages/')) {
return true
}
return false
}
})()
if (existsFileSync(p)) {
let type = 'modify'
if (!this.#modules.has(moduleID)) {
type = 'add'
}
log.info(type, path)
this._compile(path, { forceCompile: true }).then(mod => {
const hmrable = this.isHMRable(mod.id)
if (hmrable) {
if (type === 'add') {
this.#fsWatchListeners.forEach(e => e.emit('add', mod.id, mod.hash))
} else {
this.#fsWatchListeners.forEach(e => e.emit('modify-' + mod.id, mod.hash))
}
}
if (moduleID === '/app.js') {
this.#rendered.clear()
} else if (moduleID.startsWith('/pages/')) {
this.#rendered.delete(getPagePath(moduleID))
this.#routing.update(this._getRouteModule(mod))
} else if (moduleID.startsWith('/api/')) {
this.#apiRouting.update(this._getRouteModule(mod))
}
if (shouldUpdateMainModule) {
this._createMainModule()
}
this._updateDependency(path, mod.hash, ({ id, hash }) => {
if (id.startsWith('/pages/')) {
this.#rendered.delete(getPagePath(id))
}
if (!hmrable && this.isHMRable(id)) {
this.#fsWatchListeners.forEach(e => e.emit('modify-' + id, hash))
}
})
}).catch(err => {
log.error(`compile(${path}):`, err.message)
})
} else if (this.#modules.has(moduleID)) {
if (moduleID === '/app.js') {
this.#rendered.clear()
} else if (moduleID.startsWith('/pages/')) {
this.#rendered.delete(getPagePath(moduleID))
this.#routing.removeRoute(moduleID)
} else if (moduleID.startsWith('/api/')) {
this.#apiRouting.removeRoute(moduleID)
}
if (shouldUpdateMainModule) {
this._createMainModule()
}
this.#modules.delete(moduleID)
if (this.isHMRable(moduleID)) {
this.#fsWatchListeners.forEach(e => e.emit('remove', moduleID))
}
log.info('remove', path)
}
}, 150)
}
}
}
}
private _getRouteModule({ id, hash }: Module): RouteModule {
const deps = this._lookupDeps(id).filter(({ isData, isStyle }) => !!isData || !!isStyle).map(({ external, ...rest }) => rest)
return { id, hash, deps: deps.length > 0 ? deps : undefined }
}
private _moduleFromURL(url: string): Module {
const isRemote = reHttp.test(url) || (url in this.importMap.imports && reHttp.test(this.importMap.imports[url]))
const sourceFilePath = fixImportUrl(url)
const id = (isRemote ? '//' + util.trimPrefix(sourceFilePath, '/-/') : sourceFilePath).replace(reModuleExt, '.js')
let loader = ''
if (reStyleModuleExt.test(url)) {
loader = 'css'
} else if (reMDExt.test(url)) {
loader = 'markdown'
} else if (reModuleExt.test(url)) {
loader = 'js'
} else if (isRemote) {
loader = 'js'
}
return {
id,
url,
loader,
isRemote,
sourceFilePath,
sourceHash: '',
deps: [],
jsFile: '',
jsContent: '',
jsSourceMap: '',
hash: '',
} as Module
}
private async _createMainModule(): Promise<Module> {
const { baseUrl, defaultLocale } = this.config
const config: Record<string, any> = {
baseUrl,
defaultLocale,
locales: [],
routes: this.#routing.routes,
preloadModules: ['/404.js', '/app.js'].filter(id => this.#modules.has(id)).map(id => {
return this._getRouteModule(this.#modules.get(id)!)
}),
renderMode: this.config.ssr ? 'ssr' : 'spa'
}
const module = this._moduleFromURL('/main.js')
const metaFile = path.join(this.buildDir, 'main.meta.json')
module.jsContent = [
this.isDev && 'import "./-/deno.land/x/aleph/hmr.js"',
'import "./-/deno.land/x/aleph/aleph.js"',
'import "./-/deno.land/x/aleph/context.js"',
'import "./-/deno.land/x/aleph/error.js"',
'import "./-/deno.land/x/aleph/events.js"',
'import "./-/deno.land/x/aleph/routing.js"',
'import "./-/deno.land/x/aleph/util.js"',
'import bootstrap from "./-/deno.land/x/aleph/bootstrap.js"',
`bootstrap(${JSON.stringify(config, undefined, this.isDev ? 4 : undefined)})`
].filter(Boolean).join(this.isDev ? '\n' : ';')
module.hash = getHash(module.jsContent)
module.jsFile = path.join(this.buildDir, `main.${module.hash.slice(0, hashShort)}.js`)
module.deps = [
this.isDev && 'https://deno.land/x/aleph/hmr.ts',
'https://deno.land/x/aleph/bootstrap.ts'
].filter(Boolean).map(url => ({
url: String(url),
hash: this.#modules.get(String(url).replace(reHttp, '//').replace(reModuleExt, '.js'))?.hash || ''
}))
await cleanupCompilation(module.jsFile)
await Promise.all([
ensureTextFile(module.jsFile, module.jsContent),
ensureTextFile(metaFile, JSON.stringify({
url: '/main.js',
sourceHash: module.hash,
hash: module.hash,
deps: module.deps,
}, undefined, 4))
])
this.#modules.set(module.id, module)
return module
}
// todo: force recompile remote modules which URL don't specify version
private async _compile(url: string, options?: { forceCompile?: boolean, forceTarget?: string }) {
const mod = this._moduleFromURL(url)
if (this.#modules.has(mod.id) && !options?.forceCompile) {
return this.#modules.get(mod.id)!
}
const name = path.basename(mod.sourceFilePath).replace(reModuleExt, '')
const saveDir = path.join(this.buildDir, path.dirname(mod.sourceFilePath))
const metaFile = path.join(saveDir, `${name}.meta.json`)
if (existsFileSync(metaFile)) {
const { sourceHash, hash, deps } = JSON.parse(await Deno.readTextFile(metaFile))
const jsFile = path.join(saveDir, name + (mod.isRemote ? '' : '.' + hash.slice(0, hashShort))) + '.js'
if (util.isNEString(sourceHash) && util.isNEString(hash) && util.isArray(deps) && existsFileSync(jsFile)) {
try {
mod.jsContent = await Deno.readTextFile(jsFile)
if (existsFileSync(jsFile + '.map')) {
mod.jsSourceMap = await Deno.readTextFile(jsFile + '.map')
}
mod.jsFile = jsFile
mod.hash = hash
mod.deps = deps
mod.sourceHash = sourceHash
} catch (e) { }
}
}
let sourceContent = new Uint8Array()
let shouldCompile = false
let fsync = false
if (mod.isRemote) {
let dlUrl = url
const { imports } = this.importMap
for (const importPath in imports) {
const alias = imports[importPath]
if (importPath === url) {
dlUrl = alias
break
} else if (importPath.endsWith('/') && url.startsWith(importPath)) {
dlUrl = util.trimSuffix(alias, '/') + '/' + util.trimPrefix(url, importPath)
break
}
}
if (/^(https?:\/\/[0-9a-z\.\-]+)?\/react(@[0-9a-z\.\-]+)?\/?$/i.test(dlUrl)) {
dlUrl = this.config.reactUrl
}
if (/^(https?:\/\/[0-9a-z\.\-]+)?\/react\-dom(@[0-9a-z\.\-]+)?(\/server)?\/?$/i.test(dlUrl)) {
dlUrl = this.config.reactDomUrl
if (/\/server\/?$/i.test(url)) {
dlUrl += '/server'
}
}
if (dlUrl.startsWith('https://esm.sh/')) {
const u = new URL(dlUrl)
u.searchParams.set('target', this.config.buildTarget)
if (this.isDev && !u.searchParams.has('dev')) {
u.searchParams.set('dev', '')
}
dlUrl = u.toString().replace(/=(&|$)/, '$1')
} else if (dlUrl.startsWith('https://deno.land/x/aleph/')) {
dlUrl = `https://deno.land/x/aleph@v${version}/` + util.trimPrefix(dlUrl, 'https://deno.land/x/aleph/')
}
if (mod.sourceHash === '') {
log.info('Download', url, dlUrl != url ? colors.dim(`• ${dlUrl}`) : '')
try {
const resp = await fetch(dlUrl)
if (resp.status != 200) {
throw new Error(`Download ${url}: ${resp.status} - ${resp.statusText}`)
}
sourceContent = await Deno.readAll(fromStreamReader(resp.body!.getReader()))
mod.sourceHash = getHash(sourceContent)
shouldCompile = true
} catch (err) {
throw new Error(`Download ${url}: ${err.message}`)
}