101 lines
3.4 KiB
JavaScript
101 lines
3.4 KiB
JavaScript
// Copyright (c) Microsoft Corporation. All rights reserved.
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// Licensed under the MIT License.
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// @ts-check
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const child_process = require("child_process");
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const fs = require("fs");
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const path = require("path");
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const { collapseCompletedDirectories } = require("./collapse-completed-directories");
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const config = require("./config");
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const { getUncheckedLeafFiles } = require("./eligible-file-finder");
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const { writeTsconfigSync } = require("./write-tsconfig");
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const repoRoot = config.repoRoot;
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const tscPath = path.join(repoRoot, "node_modules", "typescript", "bin", "tsc");
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const tsconfigPath = path.join(repoRoot, config.targetTsconfig);
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async function main() {
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console.log("## Initializing tsc --watch process...");
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const tscWatchProcess = child_process.spawn("node", [tscPath, "-p", tsconfigPath, "--watch"]);
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await waitForBuildComplete(tscWatchProcess);
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const alreadyAttempted = new Set();
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for (let pass = 1; ; pass += 1) {
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let successesThisPass = 0;
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const uncheckedLeafFiles = await getUncheckedLeafFiles();
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const candidateFiles = uncheckedLeafFiles.filter((f) => !alreadyAttempted.has(f));
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const candidateCount = candidateFiles.length;
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console.log(`## Starting pass ${pass} with ${candidateCount} candidate files`);
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for (const file of candidateFiles) {
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alreadyAttempted.add(file);
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if (await tryAutoAddStrictNulls(tscWatchProcess, tsconfigPath, file)) {
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successesThisPass += 1;
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}
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}
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console.log(`### Finished pass ${pass} (added ${successesThisPass}/${candidateCount})`);
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if (successesThisPass === 0) {
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break;
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}
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}
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console.log("## Stopping tsc --watch process...");
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tscWatchProcess.kill();
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console.log('## Collapsing fully null-checked directories into "include" patterns...');
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collapseCompletedDirectories(tsconfigPath);
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}
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async function tryAutoAddStrictNulls(child, tsconfigPath, file) {
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const relativeFilePath = path.relative(repoRoot, file).replace(/\\/g, "/");
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const originalConfig = JSON.parse(fs.readFileSync(tsconfigPath).toString());
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originalConfig.files = Array.from(new Set(originalConfig.files.sort()));
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// Config on accept
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const newConfig = Object.assign({}, originalConfig);
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newConfig.files = Array.from(new Set(originalConfig.files.concat("./" + relativeFilePath).sort()));
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const buildCompetePromise = waitForBuildComplete(child);
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writeTsconfigSync(tsconfigPath, newConfig);
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const errorCount = await buildCompetePromise;
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const success = errorCount === 0;
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if (success) {
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console.log(`${relativeFilePath}: added`);
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} else {
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console.log(`${relativeFilePath}: ${errorCount} error(s), skipped`);
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writeTsconfigSync(tsconfigPath, originalConfig);
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}
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return success;
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}
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const buildCompletePattern = /Found (\d+) errors?\. Watching for file changes\./gi;
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async function waitForBuildComplete(tscWatchProcess) {
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const match = await waitForStdoutMatching(tscWatchProcess, buildCompletePattern);
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const errorCount = +match[1];
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return errorCount;
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}
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async function waitForStdoutMatching(child, pattern) {
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return new Promise((resolve) => {
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const listener = (data) => {
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const textOut = data.toString();
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const match = pattern.exec(textOut);
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if (match) {
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child.stdout.removeListener("data", listener);
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resolve(match);
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}
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};
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child.stdout.on("data", listener);
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});
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}
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main().catch((error) => {
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console.error(error.stack);
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process.exit(1);
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});
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