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import esbuild from "esbuild";
import path from "path";
import fs from "fs";
import sass from "sass";
import { PluginBuild } from "esbuild";
// this should give us the current directory where
// the project is being built
const BASE = process.cwd();
const distProd = path.join(BASE, "dist", "prod");
const distDev = path.join(BASE, "dist", "dev");
const sourceDir = path.join(BASE, "src");
const preact = path.join(
BASE,
"node_modules",
"preact",
"compat",
"dist",
"compat.module.js",
);
// https://preactjs.com/guide/v8/switching-to-preact/#how-to-alias-preact-compat
const preactCompatPlugin: esbuild.Plugin = {
name: "preact-compat",
setup(build) {
build.onResolve({ filter: /^(react-dom|react)$/ }, (args) => {
return {
path: preact,
};
});
},
};
export function getFilesInSource(regex: RegExp): string[] {
return getFilesInDirectory(sourceDir, regex);
}
function getFilesInDirectory(startPath: string, regex: RegExp): string[] {
if (!fs.existsSync(startPath)) {
return [];
}
const files = fs.readdirSync(startPath);
const result = files
.flatMap((file) => {
const filename = path.join(startPath, file);
const stat = fs.lstatSync(filename);
if (stat.isDirectory()) {
return getFilesInDirectory(filename, regex);
}
if (regex.test(filename)) {
return [filename];
}
return [];
})
.filter((x) => !!x);
return result;
}
let GIT_ROOT = BASE;
while (!fs.existsSync(path.join(GIT_ROOT, ".git")) && GIT_ROOT !== "/") {
GIT_ROOT = path.join(GIT_ROOT, "../");
}
if (GIT_ROOT === "/") {
// eslint-disable-next-line no-undef
console.log("not found");
// eslint-disable-next-line no-undef
process.exit(1);
}
const GIT_HASH = GIT_ROOT === "/" ? undefined : git_hash();
const buf = fs.readFileSync(path.join(BASE, "package.json"));
let _package = JSON.parse(buf.toString("utf-8"));
function git_hash() {
const rev = fs
.readFileSync(path.join(GIT_ROOT, ".git", "HEAD"))
.toString()
.trim()
.split(/.*[: ]/)
.slice(-1)[0];
if (rev.indexOf("/") === -1) {
return rev;
} else {
return fs.readFileSync(path.join(GIT_ROOT, ".git", rev)).toString().trim();
}
}
// FIXME: Put this into some helper library.
function copyFilesPlugin(files: Array<string>) {
return {
name: "copy-files",
setup(build: PluginBuild) {
const outDir = build.initialOptions.outdir;
if (outDir === undefined)
throw Error("esbuild build options does not specify outdir");
build.onEnd(() => {
for (const file of files) {
const name = path.parse(file).base;
fs.copyFileSync(file, path.join(outDir, name));
}
});
},
};
}
const DEFAULT_SASS_FILTER = /\.(s[ac]ss|css)$/;
const buildSassPlugin: esbuild.Plugin = {
name: "custom-build-sass",
setup(build) {
build.onLoad({ filter: DEFAULT_SASS_FILTER }, ({ path: file }) => {
const resolveDir = path.dirname(file);
const { css: contents } = sass.compile(file, { loadPaths: ["./"] });
return {
resolveDir,
loader: "css",
contents,
};
});
},
};
const buildConfig: esbuild.BuildOptions = {
bundle: true,
minify: false,
loader: {
".svg": "file",
".png": "dataurl",
".jpeg": "dataurl",
".ttf": "file",
".woff": "file",
".woff2": "file",
".eot": "file",
},
target: ["es6"],
format: "esm",
platform: "browser",
sourcemap: true,
jsxFactory: "h",
jsxFragment: "Fragment",
define: {
__VERSION__: `"${_package.version}"`,
__GIT_HASH__: `"${GIT_HASH}"`,
},
plugins: [
preactCompatPlugin,
copyFilesPlugin(["./src/index.html"]),
buildSassPlugin,
],
};
/**
* Build sources for prod environment
*/
export function buildProd(entryPoints: string[]) {
return esbuild.build({
...buildConfig,
entryPoints,
outdir: distProd,
});
}
/**
* Build sources for dev environment
*/
function buildDev(entryPoints: string[]): Promise<esbuild.BuildResult> {
return esbuild.build({
...buildConfig,
entryPoints,
outdir: distDev,
});
}
/**
* Do startup for development environment
*/
export function initializeDev(
entryPoints: string[],
): () => Promise<esbuild.BuildResult> {
buildConfig.inject = [
"./node_modules/@gnu-taler/web-util/lib/live-reload.mjs",
];
return () => buildDev(entryPoints);
}
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