quartz-research-note/quartz/build.ts

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import "source-map-support/register.js"
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import path from "path"
import { PerfTimer } from "./perf"
import { rimraf } from "rimraf"
import { isGitIgnored } from "globby"
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import chalk from "chalk"
import http from "http"
import serveHandler from "serve-handler"
import { parseMarkdown } from "./processors/parse"
import { filterContent } from "./processors/filter"
import { emitContent } from "./processors/emit"
import cfg from "../quartz.config"
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import { FilePath, joinSegments, slugifyFilePath } from "./path"
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import chokidar from "chokidar"
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import { ProcessedContent } from "./plugins/vfile"
import WebSocket, { WebSocketServer } from "ws"
import { Argv, BuildCtx } from "./ctx"
import { glob, toPosixPath } from "./glob"
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async function buildQuartz(argv: Argv, version: string) {
const ctx: BuildCtx = {
argv,
cfg,
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allSlugs: [],
}
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console.log(chalk.bgGreen.black(`\n Quartz v${version} \n`))
const perf = new PerfTimer()
const output = argv.output
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const pluginCount = Object.values(cfg.plugins).flat().length
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const pluginNames = (key: "transformers" | "filters" | "emitters") =>
cfg.plugins[key].map((plugin) => plugin.name)
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if (argv.verbose) {
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console.log(`Loaded ${pluginCount} plugins`)
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console.log(` Transformers: ${pluginNames("transformers").join(", ")}`)
console.log(` Filters: ${pluginNames("filters").join(", ")}`)
console.log(` Emitters: ${pluginNames("emitters").join(", ")}`)
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}
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perf.addEvent("clean")
await rimraf(output)
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console.log(`Cleaned output directory \`${output}\` in ${perf.timeSince("clean")}`)
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perf.addEvent("glob")
const fps = await glob("**/*.md", argv.directory, cfg.configuration.ignorePatterns)
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console.log(
`Found ${fps.length} input files from \`${argv.directory}\` in ${perf.timeSince("glob")}`,
)
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const filePaths = fps.map((fp) => joinSegments(argv.directory, fp) as FilePath)
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ctx.allSlugs = fps.map((fp) => slugifyFilePath(fp as FilePath))
const parsedFiles = await parseMarkdown(ctx, filePaths)
const filteredContent = filterContent(ctx, parsedFiles)
await emitContent(ctx, filteredContent)
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console.log(chalk.green(`Done processing ${fps.length} files in ${perf.timeSince()}`))
if (argv.serve) {
await startServing(ctx, parsedFiles)
}
}
async function startServing(ctx: BuildCtx, initialContent: ProcessedContent[]) {
const { argv } = ctx
const wss = new WebSocketServer({ port: 3001 })
const connections: WebSocket[] = []
wss.on("connection", (ws) => connections.push(ws))
const ignored = await isGitIgnored()
const contentMap = new Map<FilePath, ProcessedContent>()
for (const content of initialContent) {
const [_tree, vfile] = content
contentMap.set(vfile.data.filePath!, content)
}
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let timeoutId: ReturnType<typeof setTimeout> | null = null
let toRebuild: Set<FilePath> = new Set()
let toRemove: Set<FilePath> = new Set()
async function rebuild(fp: string, action: "add" | "change" | "delete") {
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fp = toPosixPath(fp)
if (!ignored(fp)) {
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const filePath = joinSegments(argv.directory, fp) as FilePath
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if (action === "add" || action === "change") {
toRebuild.add(filePath)
} else if (action === "delete") {
toRemove.add(filePath)
}
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if (timeoutId) {
clearTimeout(timeoutId)
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}
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timeoutId = setTimeout(async () => {
const perf = new PerfTimer()
console.log(chalk.yellow("Detected change, rebuilding..."))
try {
const filesToRebuild = [...toRebuild].filter((fp) => !toRemove.has(fp))
ctx.allSlugs = [...new Set([...contentMap.keys(), ...toRebuild])]
.filter((fp) => !toRemove.has(fp))
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.map((fp) => slugifyFilePath(path.posix.relative(argv.directory, fp) as FilePath))
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const parsedContent = await parseMarkdown(ctx, filesToRebuild)
for (const content of parsedContent) {
const [_tree, vfile] = content
contentMap.set(vfile.data.filePath!, content)
}
for (const fp of toRemove) {
contentMap.delete(fp)
}
await rimraf(argv.output)
const parsedFiles = [...contentMap.values()]
const filteredContent = filterContent(ctx, parsedFiles)
await emitContent(ctx, filteredContent)
console.log(chalk.green(`Done rebuilding in ${perf.timeSince()}`))
} catch {
console.log(chalk.yellow(`Rebuild failed. Waiting on a change to fix the error...`))
}
connections.forEach((conn) => conn.send("rebuild"))
toRebuild.clear()
toRemove.clear()
}, 250)
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}
}
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const watcher = chokidar.watch(".", {
persistent: true,
cwd: argv.directory,
ignoreInitial: true,
})
watcher
.on("add", (fp) => rebuild(fp, "add"))
.on("change", (fp) => rebuild(fp, "change"))
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.on("unlink", (fp) => rebuild(fp, "delete"))
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const server = http.createServer(async (req, res) => {
await serveHandler(req, res, {
public: argv.output,
directoryListing: false,
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})
const status = res.statusCode
const statusString =
status >= 200 && status < 300
? chalk.green(`[${status}]`)
: status >= 300 && status < 400
? chalk.yellow(`[${status}]`)
: chalk.red(`[${status}]`)
console.log(statusString + chalk.grey(` ${req.url}`))
})
server.listen(argv.port)
console.log(chalk.cyan(`Started a Quartz server listening at http://localhost:${argv.port}`))
console.log("hint: exit with ctrl+c")
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}
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export default async (argv: Argv, version: string) => {
try {
await buildQuartz(argv, version)
} catch {
console.log(chalk.red("\nExiting Quartz due to a fatal error"))
process.exit(1)
}
}