index.js

// @ts-check
const path = require("path");
const glob = require("glob");
const {
  forUncheckedIndexEligbleFiles,
  forEachFileInSrc,
} = require("./src/getStrictNullCheckEligibleFiles");
const { getImportsForFile } = require("./src/tsHelper");

const vscodeRoot = path.join(process.cwd(), process.argv[2]);
const srcRoot = path.join(vscodeRoot, "src");

let sort = true;
let filter;
let printDependedOnCount = true;
let includeTests = false;

if (false) {
  // Generate test files listing
  sort = false;
  filter = (x) => x.endsWith(".test.ts");
  printDependedOnCount = false;
  includeTests = true;
}

forUncheckedIndexEligbleFiles(vscodeRoot, () => {}, { includeTests }).then(
  async (eligibleFiles) => {
    const eligibleSet = new Set(eligibleFiles);

    const dependedOnCount = new Map(eligibleFiles.map((file) => [file, 0]));

    for (const file of await forEachFileInSrc(srcRoot)) {
      if (eligibleSet.has(file)) {
        // Already added
        continue;
      }

      for (const imp of getImportsForFile(file, srcRoot)) {
        if (dependedOnCount.has(imp)) {
          dependedOnCount.set(imp, dependedOnCount.get(imp) + 1);
        }
      }
    }

    let out = Array.from(dependedOnCount.entries());
    if (filter) {
      out = out.filter((x) => filter(x[0]));
    }
    if (sort) {
      out = out.sort((a, b) => b[1] - a[1]);
    }
    for (const pair of out) {
      console.log(
        toFormattedFilePath(pair[0]) +
          (printDependedOnCount ? ` — Depended on by **${pair[1]}** files` : "")
      );
    }
  }
);

function toFormattedFilePath(file) {
  // return `"./${path.relative(srcRoot, file)}",`;
  return `- [ ] \`"./${path.relative(srcRoot, file)}"\``;
}