gatsby-core-utils/dist/site-metadata.mjs

A collection of gatsby utils used in different gatsby packages

import * as fs from "fs-extra";
import { createServiceLock, getService } from "./service-lock";
import { readConfigFile, getConfigPath } from "./utils";
import { lock } from "./lock";
export async function getInternalSiteMetadata(sitePath) {
  return getService(sitePath, `metadata`, true);
}
export async function updateInternalSiteMetadata(metadata, merge = true) {
  if (merge) {
    const oldMetadata = await getInternalSiteMetadata(metadata.sitePath);
    if (oldMetadata) {
      metadata = {
        ...oldMetadata,
        ...metadata
      };
    }
  }
  return createServiceLock(metadata.sitePath, `metadata`, metadata).then(unlock => unlock === null || unlock === void 0 ? void 0 : unlock());
}

// TODO(v5): Remove again - Necessary because of renaming in https://github.com/gatsbyjs/gatsby/pull/34094
export { updateInternalSiteMetadata as updateSiteMetadata };

/**
 * Does a string replace by searching for beginning of "siteMetadata"
 * Then it adds the name + value as the next key of that object
 */
function addField(src, {
  name,
  value
}) {
  const FIND = `  siteMetadata: {\n`;
  const REPLACE = `  siteMetadata: {\n    ${name}: \`${value}\`,\n`;
  const modifiedConfig = src.replace(FIND, REPLACE);
  return modifiedConfig;
}
export async function addFieldToMinimalSiteMetadata({
  root
}, {
  name,
  value
}) {
  const release = await lock(`gatsby-config.js`);
  const configSrc = await readConfigFile(root);
  const code = addField(configSrc, {
    name,
    value
  });
  await fs.writeFile(getConfigPath(root), code);
  release();
}