cdk-nextjs/lib/lambdas/post-deploy/prune-fs.js

Deploy Next.js apps on AWS with CDK

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.pruneFs = pruneFs;
const node_fs_1 = require("node:fs");
const node_path_1 = require("node:path");
const utils_1 = require("../utils");
/**
 * Given `mountPath` and `currentBuildId`, delete all directories at `mountPath`
 * that are not named `currentBuildId`
 */
function pruneFs(props) {
    const { mountPath, currentBuildId } = props;
    // Ensure the mount path exists
    if (!(0, node_fs_1.existsSync)(mountPath)) {
        (0, utils_1.debug)(`Mount path ${mountPath} does not exist, nothing to prune`);
        return;
    }
    // Read all entries in the directory
    const entries = (0, node_fs_1.readdirSync)(mountPath);
    // Filter for directories only and exclude the current build ID
    const directoriesToDelete = entries.filter((entry) => {
        const entryPath = (0, node_path_1.join)(mountPath, entry);
        return (0, node_fs_1.statSync)(entryPath).isDirectory() && entry !== currentBuildId;
    });
    // Delete each directory
    for (const dir of directoriesToDelete) {
        const dirPath = (0, node_path_1.join)(mountPath, dir);
        (0, utils_1.debug)(`Pruning directory: ${dirPath}`);
        (0, node_fs_1.rmSync)(dirPath, { recursive: true, force: true });
    }
    (0, utils_1.debug)(`Pruned ${directoriesToDelete.length} directories, kept ${currentBuildId}`);
}
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