All files / src/migrations/utils package-json.ts

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import { Rule, SchematicsException, Tree } from '@angular-devkit/schematics';
import { gte, minVersion, validRange } from 'semver';
import { MapLike } from 'typescript';
import { assocPath, evolve, mapObjIndexed, omit } from 'ramda';
import { tryRule } from './rules';
import { readJsonFile } from './json';
 
export const PACKAGE_JSON_PATH = '/package.json';
 
export interface PackageJson {
  name: string;
  version: string;
  scripts?: MapLike<string>;
  dependencies?: MapLike<string>;
  devDependencies?: MapLike<string>;
  peerDependencies?: MapLike<string>;
  engines?: MapLike<string>;
}
 
export const readPackageJson = (tree: Tree): PackageJson => {
  return readJsonFile(tree, PACKAGE_JSON_PATH);
};
 
const updateDependencyVersion = (
  name: string,
  toVersion: string,
  currentDeps: MapLike<string> = {},
): MapLike<string> => {
  const currentVersion: string | undefined = currentDeps[name];
  if (!currentVersion) {
    throw new SchematicsException(`${name} not found in package.json`);
  }
 
  if (!validRange(currentVersion)) {
    throw new SchematicsException(`Invalid ${name} version in package.json: ${currentVersion}`);
  }
 
  const minCurrentVersion = minVersion(currentVersion);
  Iif (minCurrentVersion === null) {
    throw new SchematicsException(`Invalid ${name} version in package.json: ${currentVersion}`);
  }
 
  const minToVersion = minVersion(toVersion);
  Iif (minToVersion === null) {
    throw new SchematicsException(`Unexpected error`); // crazy if this happens
  }
 
  // As long as they have the minimum version, we let them keep their own semver.
  if (gte(minCurrentVersion, minToVersion)) {
    return currentDeps;
  }
 
  return {
    ...currentDeps,
    [name]: toVersion,
  };
};
 
export const updatePackageJson =
  (updateFn: (packageJson: PackageJson) => PackageJson): Rule =>
  (tree: Tree) => {
    const packageJson = readPackageJson(tree);
    tree.overwrite(PACKAGE_JSON_PATH, JSON.stringify(updateFn(packageJson), null, 2));
    return tree;
  };
 
export const addDependency = (name: string, toVersion: string): Rule =>
  updatePackageJson((packageJson: PackageJson) => ({
    ...packageJson,
    dependencies:
      packageJson.dependencies && packageJson.dependencies[name]
        ? updateDependencyVersion(name, toVersion, packageJson.dependencies)
        : {
            ...packageJson.dependencies,
            [name]: toVersion,
          },
  }));
 
export const addDevDependency = (name: string, toVersion: string): Rule =>
  updatePackageJson((packageJson: PackageJson) => ({
    ...packageJson,
    devDependencies:
      packageJson.devDependencies && packageJson.devDependencies[name]
        ? updateDependencyVersion(name, toVersion, packageJson.devDependencies)
        : {
            ...packageJson.devDependencies,
            [name]: toVersion,
          },
  }));
 
export const updateDependency = (name: string, toVersion: string): Rule =>
  updatePackageJson((packageJson: PackageJson) => ({
    ...packageJson,
    dependencies: updateDependencyVersion(name, toVersion, packageJson.dependencies),
  }));
 
export const updateDevDependency = (name: string, toVersion: string): Rule =>
  updatePackageJson((packageJson: PackageJson) => ({
    ...packageJson,
    devDependencies: updateDependencyVersion(name, toVersion, packageJson.devDependencies),
  }));
 
export const removeDevDependency = (name: string): Rule => updatePackageJson(evolve({ devDependencies: omit([name]) }));
 
export const removeDependency = (name: string): Rule => updatePackageJson(evolve({ dependencies: omit([name]) }));
 
export const updatePeerDependencyVersionsInLib = (
  tree: Tree,
  libPackageJsonPath: string,
  targetPackageVersions: { [key: string]: string },
): void => {
  const libPackageJson = readJsonFile<PackageJson>(tree, libPackageJsonPath);
  const updateVersion = (oldVersion: string, packageName: string) =>
    targetPackageVersions[packageName]
      ? oldVersion.replace(/[0-9]+.[0-9]+.[0-9]+(-.*)?/, targetPackageVersions[packageName])
      : oldVersion;
  const updatedPackageJson = assocPath(
    ['peerDependencies'],
    mapObjIndexed(updateVersion, libPackageJson.peerDependencies),
    libPackageJson,
  );
  tree.overwrite(libPackageJsonPath, JSON.stringify(updatedPackageJson, null, 2));
};
 
export const checkScript =
  (name: string, command: string | undefined): Rule =>
  (tree: Tree) => {
    const packageJson = readPackageJson(tree);
    if (packageJson.scripts && packageJson.scripts[name] === command) {
      return tree;
    }
 
    throw new SchematicsException(
      command === undefined
        ? `package.json script ${name} has already been defined.`
        : `package.json script ${name} does not have expected definition "${command}".`,
    );
  };
 
export const updateScript = (name: string, cb: (oldScript: string | undefined) => string): Rule =>
  updatePackageJson((packageJson: PackageJson) => {
    const scripts = packageJson.scripts;
    if (!scripts) {
      throw new SchematicsException(`Script ${name} not found in package.json`);
    }
    return {
      ...packageJson,
      scripts: {
        ...scripts,
        [name]: cb(scripts[name]),
      },
    };
  });
 
/**
 * Only use this one if updating bb-ang is the only thing needed in the manual process.
 *
 * I assume this will be a common enough use-case to justify this as it's own rule.
 */
export const updateBbAngOnly = (toVersion: string): Rule =>
  tryRule(
    updateDevDependency('@bb-cli/bb-ang', toVersion),
    `
## Make sure the version of @bb-cli/bb-ang is ${toVersion}
 
For that install it as a dev dependency using the following command:
$ npm i --save-dev @bb-cli/bb-ang@${toVersion}
`,
  );