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import path from "path";
import fs from "fs-extra";
import getPackageManager from "../utils/getPackageManager";
import getPackageManagerVersion from "../utils/getPackageManagerVersion";
import getTransformerHelpers from "../utils/getTransformerHelpers";
import { TransformerResults } from "../runner";
import type { TransformerArgs } from "../types";
// transformer details
const TRANSFORMER = "add-package-manager";
const DESCRIPTION = "Set the `packageManager` key in root `package.json` file";
const INTRODUCED_IN = "1.1.0";
export function transformer({
root,
options,
}: TransformerArgs): TransformerResults {
const { log, runner } = getTransformerHelpers({
transformer: TRANSFORMER,
rootPath: root,
options,
});
log.info(`Set "packageManager" key in root "package.json" file...`);
const packageManager = getPackageManager({ directory: root });
if (!packageManager) {
return runner.abortTransform({
reason: `Unable to determine package manager for ${root}`,
});
}
// handle workspaces...
let version = null;
try {
version = getPackageManagerVersion(packageManager, root);
} catch (err) {
return runner.abortTransform({
reason: `Unable to determine package manager version for ${root}`,
});
}
const pkgManagerString = `${packageManager}@${version}`;
const rootPackageJsonPath = path.join(root, "package.json");
const rootPackageJson = fs.readJsonSync(rootPackageJsonPath);
const allWorkspaces = [
{
name: "package.json",
path: root,
packageJson: {
...rootPackageJson,
packageJsonPath: rootPackageJsonPath,
},
},
];
for (const workspace of allWorkspaces) {
const { packageJsonPath, ...pkgJson } = workspace.packageJson;
const newJson = { ...pkgJson, packageManager: pkgManagerString };
runner.modifyFile({
filePath: packageJsonPath,
after: newJson,
});
}
return runner.finish();
}
const transformerMeta = {
name: `${TRANSFORMER}: ${DESCRIPTION}`,
value: TRANSFORMER,
introducedIn: INTRODUCED_IN,
transformer,
};
export default transformerMeta;
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