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config.ts
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config.ts
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import { basename, dirname, globToRegExp, join } from "https://deno.land/std@0.136.0/path/mod.ts";
import { JSONC } from "https://deno.land/x/jsonc_parser@v0.0.1/src/jsonc.ts";
import { findFile } from "../lib/fs.ts";
import { globalIt } from "../lib/helpers.ts";
import log from "../lib/log.ts";
import util from "../lib/util.ts";
import { isCanary, VERSION } from "../version.ts";
import type { ImportMap, ModuleLoader } from "./types.ts";
export type JSXConfig = {
jsxRuntime?: "react" | "preact";
jsxImportSource?: string;
jsxRuntimeVersion?: string;
jsxRuntimeCdnVersion?: string;
};
export function getAlephPkgUri() {
return globalIt("__ALEPH_PKG_URI", () => {
const DEV_PORT = Deno.env.get("ALEPH_DEV_PORT");
if (DEV_PORT) {
return `http://localhost:${DEV_PORT}`;
}
const version = Deno.env.get("ALEPH_VERSION") || VERSION;
return `https://deno.land/x/${isCanary ? "aleph_canary" : "aleph"}@${version}`;
});
}
export async function loadJSXConfig(importMap: ImportMap): Promise<JSXConfig> {
const jsxConfig: JSXConfig = {};
const denoConfigFile = await findFile(["deno.jsonc", "deno.json", "tsconfig.json"]);
if (denoConfigFile) {
try {
const { compilerOptions } = await parseJSONFile(denoConfigFile);
const { jsx, jsxImportSource, jsxFactory } = (compilerOptions || {}) as Record<string, unknown>;
if (
(jsx === undefined || jsx === "react-jsx" || jsx === "react-jsxdev") &&
util.isFilledString(jsxImportSource)
) {
jsxConfig.jsxImportSource = jsxImportSource;
jsxConfig.jsxRuntime = jsxImportSource.includes("preact") ? "preact" : "react";
} else if (jsx === undefined || jsx === "react") {
jsxConfig.jsxRuntime = jsxFactory === "h" ? "preact" : "react";
}
} catch (error) {
log.error(`Failed to parse ${basename(denoConfigFile)}: ${error.message}`);
}
} else if (Deno.env.get("ALEPH_DEV")) {
const jsonFile = join(Deno.env.get("ALEPH_DEV_ROOT")!, "deno.json");
const { compilerOptions } = await parseJSONFile(jsonFile);
const { jsx, jsxImportSource, jsxFactory } = (compilerOptions || {}) as Record<string, unknown>;
if (
(jsx === undefined || jsx === "react-jsx" || jsx === "react-jsxdev") &&
util.isFilledString(jsxImportSource)
) {
jsxConfig.jsxImportSource = jsxImportSource;
jsxConfig.jsxRuntime = jsxImportSource.includes("preact") ? "preact" : "react";
} else if (jsx === undefined || jsx === "react") {
jsxConfig.jsxRuntime = jsxFactory === "h" ? "preact" : "react";
}
}
let fuzzReactUrl: string | null = null;
for (const url of Object.values(importMap.imports)) {
let m = url.match(/^https?:\/\/esm\.sh\/(p?react)@(\d+\.\d+\.\d+(-[a-z\d.]+)*)(\?|$)/);
if (!m) {
m = url.match(/^https?:\/\/esm\.sh\/(p?react)@.+/);
}
if (m) {
const { searchParams } = new URL(url);
if (searchParams.has("pin")) {
jsxConfig.jsxRuntimeCdnVersion = util.trimPrefix(searchParams.get("pin")!, "v");
}
if (!jsxConfig.jsxRuntime) {
jsxConfig.jsxRuntime = m[1] as "react" | "preact";
}
if (m[2]) {
jsxConfig.jsxRuntimeVersion = m[2];
if (jsxConfig.jsxImportSource) {
jsxConfig.jsxImportSource = `https://esm.sh/${jsxConfig.jsxRuntime}@${m[2]}`;
}
} else {
fuzzReactUrl = url;
}
break;
}
}
// get acctual react version from esm.sh
if (fuzzReactUrl) {
log.info(`Checking ${jsxConfig.jsxRuntime} version...`);
const text = await fetch(fuzzReactUrl).then((resp) => resp.text());
const m = text.match(/https?:\/\/cdn\.esm\.sh\/(v\d+)\/p?react@(\d+\.\d+\.\d+(-[a-z\d.]+)*)\//);
if (m) {
jsxConfig.jsxRuntimeCdnVersion = m[1].slice(1);
jsxConfig.jsxRuntimeVersion = m[2];
if (jsxConfig.jsxImportSource) {
jsxConfig.jsxImportSource = `https://esm.sh/${jsxConfig.jsxRuntime}@${m[2]}`;
}
log.info(`${jsxConfig.jsxRuntime}@${jsxConfig.jsxRuntimeVersion} is used`);
}
}
return jsxConfig;
}
export async function loadImportMap(): Promise<ImportMap> {
const importMap: ImportMap = { __filename: "", imports: {}, scopes: {} };
if (Deno.env.get("ALEPH_DEV")) {
const alephPkgUri = `http://localhost:${Deno.env.get("ALEPH_DEV_PORT")}`;
const importMapFile = join(Deno.env.get("ALEPH_DEV_ROOT")!, "import_map.json");
const { __filename, imports, scopes } = await readImportMap(importMapFile);
Object.assign(importMap, {
__filename,
imports: {
...imports,
"@unocss/": `${alephPkgUri}/lib/@unocss/`,
"aleph/": `${alephPkgUri}/`,
"aleph/server": `${alephPkgUri}/server/mod.ts`,
"aleph/react": `${alephPkgUri}/framework/react/mod.ts`,
"aleph/vue": `${alephPkgUri}/framework/vue/mod.ts`,
},
scopes,
});
}
const importMapFile = await findFile(
["import_map", "import-map", "importmap", "importMap"].map((v) => `${v}.json`),
);
if (importMapFile) {
try {
const { __filename, imports, scopes } = await readImportMap(importMapFile);
Object.assign(importMap, { __filename });
Object.assign(importMap.imports, imports);
Object.assign(importMap.scopes, scopes);
} catch (e) {
log.error("loadImportMap:", e.message);
}
}
return importMap;
}
export async function initModuleLoaders(importMap: ImportMap): Promise<ModuleLoader[]> {
const loaders: ModuleLoader[] = [];
for (const key in importMap.imports) {
if (/^\*\.[a-z0-9]+$/i.test(key)) {
let src = importMap.imports[key];
if (src.endsWith("!loader")) {
src = util.trimSuffix(src, "!loader");
if (src.startsWith("./") || src.startsWith("../")) {
src = "file://" + join(dirname(importMap.__filename), src);
}
let { default: loader } = await import(src);
if (typeof loader === "function") {
loader = new loader();
}
if (
typeof loader === "object" && loader !== null &&
typeof loader.test === "function" && typeof loader.load === "function"
) {
const reg = globToRegExp("/**/" + key);
loaders.push({
test: (pathname: string) => {
return reg.test(pathname) && loader.test(pathname);
},
load: (pathname: string, env: Record<string, unknown>) => loader.load(pathname, env),
});
}
}
}
}
return loaders;
}
export async function parseJSONFile(jsonFile: string): Promise<Record<string, unknown>> {
const raw = await Deno.readTextFile(jsonFile);
if (jsonFile.endsWith(".jsonc")) {
return JSONC.parse(raw);
}
return JSON.parse(raw);
}
export async function readImportMap(importMapFile: string): Promise<ImportMap> {
const importMap: ImportMap = { __filename: importMapFile, imports: {}, scopes: {} };
const data = await parseJSONFile(importMapFile);
const imports: Record<string, string> = toStringMap(data.imports);
const scopes: Record<string, Record<string, string>> = {};
if (util.isPlainObject(data.scopes)) {
Object.entries(data.scopes).forEach(([scope, imports]) => {
scopes[scope] = toStringMap(imports);
});
}
Object.assign(importMap, { imports, scopes });
return importMap;
}
function toStringMap(v: unknown): Record<string, string> {
const m: Record<string, string> = {};
if (util.isPlainObject(v)) {
Object.entries(v).forEach(([key, value]) => {
if (key === "") {
return;
}
if (util.isFilledString(value)) {
m[key] = value;
return;
}
if (util.isFilledArray(value)) {
for (const v of value) {
if (util.isFilledString(v)) {
m[key] = v;
return;
}
}
}
});
}
return m;
}