Function migrateFile

packages/localize/tools/src/migrate/migrate.ts:15–25

(sourceCode: string, mapping: MigrationMapping)

/** Migrates the legacy message IDs within a single file. */
export function migrateFile(sourceCode: string, mapping: MigrationMapping) {
  const legacyIds = Object.keys(mapping);

  for (const legacyId of legacyIds) {
    const canonicalId = mapping[legacyId];
    const pattern = new RegExp(escapeRegExp(legacyId), 'g');
    sourceCode = sourceCode.replace(pattern, canonicalId);
  }

  return sourceCode;
}

/** Escapes special regex characters in a string. */
function escapeRegExp(str: string): string {