Function syncPeerToDevDependencies

scripts/bump-peers.ts:432–478

(
  modifications: Map<string, PackageModification>,
)

}

function syncPeerToDevDependencies(
  modifications: Map<string, PackageModification>,
): void {
  logStep("Syncing peerDependencies to devDependencies");

  let syncCount = 0;

  for (const [pkgName, modification] of modifications) {
    const { packageJson } = modification;
    const peerDeps = packageJson.peerDependencies ?? {};
    let devDeps = packageJson.devDependencies;

    // Create devDependencies if it doesn't exist and there are peers to sync
    if (devDeps === undefined && Object.keys(peerDeps).length > 0) {
      devDeps = {};
      packageJson.devDependencies = devDeps;
    }

    if (devDeps === undefined) {
      continue;
    }

    for (const [peerName, peerVersion] of Object.entries(peerDeps)) {
      const devVersion = devDeps[peerName];

      if (devVersion === undefined) {
        // Missing from devDependencies, add it
        devDeps[peerName] = peerVersion;
        syncCount++;
        log(
          `  ${fmt.pkg(pkgName)}: added ${peerName} to devDependencies as ${fmt.version(peerVersion)}`,
        );
      } else if (devVersion !== peerVersion) {
        // Different version, update it
        devDeps[peerName] = peerVersion;
        syncCount++;
        log(
          `  ${fmt.pkg(pkgName)}: updated ${peerName} in devDependencies to ${fmt.version(peerVersion)}`,
        );
      }
    }
  }

  if (syncCount === 0) {
    log(fmt.deemphasize("  No devDependencies needed syncing"));
  }
}

function writeModifications(
  modifications: Map<string, PackageModification>,