@angular-devkit/core#NormalizedRoot TypeScript Examples

The following examples show how to use @angular-devkit/core#NormalizedRoot. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: find-module.ts    From edit-in-place with MIT License 5 votes vote down vote up 
/**
 * Find the module referred by a set of options passed to the schematics.
 */
export function findModuleFromOptions(host: Tree, options: any, projectPath: any): Path | undefined {
  if (options.hasOwnProperty('skipImport') && options.skipImport) {
    return undefined;
  }

  const moduleExt = options.moduleExt || MODULE_EXT;
  const routingModuleExt = options.routingModuleExt || ROUTING_MODULE_EXT;

  if (!options.module) {
    const pathToCheck = (projectPath || '') + '/' + options.name;
    const module = findModule(host, pathToCheck, moduleExt, routingModuleExt);
    return module ? normalize(module) : undefined;
  } else {
    const modulePath = normalize(`/${projectPath}/${options.module}`);
    const componentPath = normalize(`/${projectPath}/${options.name}`);
    const moduleBaseName = normalize(modulePath)
      .split('/')
      .pop();

    const candidateSet = new Set<Path>([normalize(projectPath || '/')]);

    for (let dir = modulePath; dir !== NormalizedRoot; dir = dirname(dir)) {
      candidateSet.add(dir);
    }
    for (let dir = componentPath; dir !== NormalizedRoot; dir = dirname(dir)) {
      candidateSet.add(dir);
    }

    const candidatesDirs = [...candidateSet].sort((a, b) => b.length - a.length);
    for (const c of candidatesDirs) {
      const candidateFiles = ['', `${moduleBaseName}.ts`, `${moduleBaseName}${moduleExt}`].map(x => join(c, x));

      for (const sc of candidateFiles) {
        if (host.exists(sc)) {
          return normalize(sc);
        }
      }
    }
    throw new Error(
      `Specified module '${options.module}' does not exist.\n` +
        `Looked in the following directories:\n    ${candidatesDirs.join('\n    ')}`
    );
  }
}