Function main

ng-dev/ts-circular-dependencies/index.ts:65–179

(
  approve: boolean,
  config: CircularDependenciesTestConfig,
  printWarnings: boolean,
)

 * @returns Status code.
 */
export function main(
  approve: boolean,
  config: CircularDependenciesTestConfig,
  printWarnings: boolean,
): number {
  const {
    baseDir,
    goldenFile,
    glob: globPattern,
    resolveModule,
    approveCommand,
    ignoreTypeOnlyChecks,
  } = config;
  const analyzer = new Analyzer(resolveModule, ignoreTypeOnlyChecks);
  const cycles: ReferenceChain[] = [];
  const checkedNodes = new WeakSet<ts.SourceFile>();

  glob
    .globSync(globPattern, {absolute: true, ignore: ['**/node_modules/**']})
    .forEach((filePath) => {
      const sourceFile = analyzer.getSourceFile(filePath);
      cycles.push(...analyzer.findCycles(sourceFile, checkedNodes));
    });

  const actual = convertReferenceChainToGolden(cycles, baseDir);

  Log.info(green(`   Current number of cycles: ${yellow(cycles.length.toString())}`));

  const warningsCount = analyzer.unresolvedFiles.size + analyzer.unresolvedModules.size;

  // By default, warnings for unresolved files or modules are not printed. This is because
  // it's common that third-party modules are not resolved/visited. Also generated files
  // from the View Engine compiler (i.e. factories, summaries) cannot be resolved.
  if (printWarnings && warningsCount !== 0) {
    Log.info(yellow('⚠  The following imports could not be resolved:'));
    Array.from(analyzer.unresolvedModules)
      .sort()
      .forEach((specifier) => Log.info(`  • ${specifier}`));
    analyzer.unresolvedFiles.forEach((value, key) => {
      Log.info(`  • ${getRelativePath(baseDir, key)}`);
      value.sort().forEach((specifier) => Log.info(`      ${specifier}`));
    });
  } else {
    Log.warn(`⚠  ${warningsCount} imports could not be resolved.`);
    Log.warn(`   Please rerun with "--warnings" to inspect unresolved imports.`);
  }

  if (goldenFile === undefined) {
    if (approve) {
      Log.error(
        `x  Cannot approve circular depdencies within this repository as no golden file exists.`,
      );
      return 1;
    }
    if (cycles.length > 0) {
      Log.error(
        `x  No circular dependencies are allow within this repository, but circular dependencies were found:`,
      );