@strapi/strapi/dist/src/cli/commands/configuration/restore.js

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'use strict';

var commander = require('commander');
var fs = require('fs');
var _ = require('lodash');
var core = require('@strapi/core');
var helpers = require('../../utils/helpers.js');

/**
 * Will restore configurations. It reads from a file or stdin
 */ const action = async ({ file: filePath, strategy = 'replace' })=>{
    const input = filePath ? fs.readFileSync(filePath) : await readStdin();
    const appContext = await core.compileStrapi();
    const app = await core.createStrapi(appContext).load();
    let dataToImport;
    try {
        dataToImport = JSON.parse(_.toString(input));
    } catch (error) {
        if (error instanceof Error) {
            throw new Error(`Invalid input data: ${error.message}. Expected a valid JSON array.`);
        }
        throw error;
    }
    if (!Array.isArray(dataToImport)) {
        throw new Error(`Invalid input data. Expected a valid JSON array.`);
    }
    if (!app.db) {
        throw new Error('Cannot import configuration without a database connection.');
    }
    const importer = createImporter(app.db, strategy);
    for (const config of dataToImport){
        await importer.import(config);
    }
    console.log(`Successfully imported configuration with ${strategy} strategy. Statistics: ${importer.printStatistics()}.`);
    process.exit(0);
};
const readStdin = ()=>{
    const { stdin } = process;
    let result = '';
    if (stdin.isTTY) return Promise.resolve(result);
    return new Promise((resolve, reject)=>{
        stdin.setEncoding('utf8');
        stdin.on('readable', ()=>{
            let chunk;
            // eslint-disable-next-line no-cond-assign
            while(chunk = stdin.read()){
                result += chunk;
            }
        });
        stdin.on('end', ()=>{
            resolve(result);
        });
        stdin.on('error', reject);
    });
};
const createImporter = (db, strategy)=>{
    switch(strategy){
        case 'replace':
            return createReplaceImporter(db);
        case 'merge':
            return createMergeImporter(db);
        case 'keep':
            return createKeepImporter(db);
        default:
            throw new Error(`No importer available for strategy "${strategy}"`);
    }
};
/**
 * Replace importer. Will replace the keys that already exist and create the new ones
 */ const createReplaceImporter = (db)=>{
    const stats = {
        created: 0,
        replaced: 0
    };
    return {
        printStatistics () {
            return `${stats.created} created, ${stats.replaced} replaced`;
        },
        async import (conf) {
            const matching = await db.query('strapi::core-store').count({
                where: {
                    key: conf.key
                }
            });
            if (matching > 0) {
                stats.replaced += 1;
                await db.query('strapi::core-store').update({
                    where: {
                        key: conf.key
                    },
                    data: conf
                });
            } else {
                stats.created += 1;
                await db.query('strapi::core-store').create({
                    data: conf
                });
            }
        }
    };
};
/**
 * Merge importer. Will merge the keys that already exist with their new value and create the new ones
 */ const createMergeImporter = (db)=>{
    const stats = {
        created: 0,
        merged: 0
    };
    return {
        printStatistics () {
            return `${stats.created} created, ${stats.merged} merged`;
        },
        async import (conf) {
            const existingConf = await db.query('strapi::core-store').findOne({
                where: {
                    key: conf.key
                }
            });
            if (existingConf) {
                stats.merged += 1;
                await db.query('strapi::core-store').update({
                    where: {
                        key: conf.key
                    },
                    data: _.merge(existingConf, conf)
                });
            } else {
                stats.created += 1;
                await db.query('strapi::core-store').create({
                    data: conf
                });
            }
        }
    };
};
/**
 * Merge importer. Will keep the keys that already exist without changing them and create the new ones
 */ const createKeepImporter = (db)=>{
    const stats = {
        created: 0,
        untouched: 0
    };
    return {
        printStatistics () {
            return `${stats.created} created, ${stats.untouched} untouched`;
        },
        async import (conf) {
            const matching = await db.query('strapi::core-store').count({
                where: {
                    key: conf.key
                }
            });
            if (matching > 0) {
                stats.untouched += 1;
                // if configuration already exists do not overwrite it
                return;
            }
            stats.created += 1;
            await db.query('strapi::core-store').create({
                data: conf
            });
        }
    };
};
/**
 * `$ strapi configuration:restore`
 */ const command = ()=>{
    return commander.createCommand('configuration:restore').alias('config:restore').description('Restore configurations of your application').option('-f, --file <file>', 'Input file, default input is stdin').option('-s, --strategy <strategy>', 'Strategy name, one of: "replace", "merge", "keep"').action(helpers.runAction('configuration:restore', action));
};

exports.action = action;
exports.command = command;
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