@baseplate-dev/sync/dist/output/string-merge-algorithms/json.js

Library for syncing Baseplate descriptions

import jsonPatch from 'fast-json-patch';
/**
 * Merges JSON strings using a 3-way merge algorithm
 */
export const jsonMergeAlgorithm = (input) => {
    try {
        const originalJson = JSON.parse(input.previousGeneratedText);
        const newJson = JSON.parse(input.currentGeneratedText);
        const existingJson = JSON.parse(input.previousWorkingText);
        const diff = jsonPatch.compare(originalJson, newJson, true);
        if (diff.length === 0) {
            return {
                mergedText: input.previousWorkingText,
                hasConflict: false,
            };
        }
        const result = JSON.stringify(jsonPatch.applyPatch(existingJson, diff, true, false).newDocument, null, 2);
        return {
            mergedText: result,
            hasConflict: false,
        };
    }
    catch {
        // default to merge strings method if patching fails
        return null;
    }
};
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