element-web-Github/scripts/analyse_unused_exports.ts
Michael Telatynski c05c429803
Absorb the matrix-react-sdk repository (#28192)
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2024-10-16 13:31:55 +01:00

60 lines
2.1 KiB
JavaScript
Executable File

#!/usr/bin/env node
import * as fs from "node:fs";
import { exec } from "node:child_process";
const includeJSSDK = process.argv.includes("--include-js-sdk");
const ignore: string[] = [];
ignore.push(...Object.values<string>(JSON.parse(fs.readFileSync(`${__dirname}/../components.json`, "utf-8"))));
ignore.push("/index.ts");
ignore.push("/jest-matrix-react.tsx");
ignore.push("/customisations/");
ignore.push("/test-utils/");
// The following ignores are temporary and false-positives which need to be fixed
ignore.push("/useLocalStorageState.ts");
ignore.push("/blurhash.worker.ts");
ignore.push("/OpenSpotlightPayload.ts");
ignore.push("/PinnedMessageBadge.tsx");
ignore.push("/editor/mock.ts");
ignore.push("DeviceIsolationModeController.ts");
// We ignore js-sdk by default as it may export for other non element-web projects
if (!includeJSSDK) ignore.push("matrix-js-sdk");
const command = `yarn ts-prune --ignore "${ignore.join("|")}" | grep -v "(used in module)"`;
exec(command, (error, stdout, stderr) => {
if (error) throw error;
// We have to do this as piping the output of ts-prune causes the return
// code to be 0
if (stderr) throw Error(stderr);
let lines = stdout.split("\n");
// Remove the first line as that is the command that was being run and we
// log that only in case of an error
lines.splice(0, 1);
// Remove the last line as it is empty
lines.pop();
// ts-prune has bug where if the unused export is in a dependency, the path
// won't have an "/" character at the start, so we try to fix that for
// better UX
// TODO: This might break on Windows
lines = lines.reduce<string[]>((newLines, line) => {
if (!line.startsWith("/")) newLines.push("/" + line);
else newLines.push(line);
return newLines;
}, []);
// If an unused export has been found, we error
if (lines.length > 0) {
console.log(`Command that was run: ${command}`);
console.log(lines.join("\n"));
throw Error("Unused exports found!");
}
console.log("Success - no unused exports found!");
});