Make fix reuse implementations

src/commands/fix/get-actual-tree.mts

@@ -0,0 +1,20 @@
+import {
+  Arborist,
+  SAFE_ARBORIST_REIFY_OPTIONS_OVERRIDES,
+} from '../../shadow/npm/arborist/index.mts'
+
+import type { NodeClass } from '../../shadow/npm/arborist/types.mts'
+
+export async function getActualTree(
+  cwd: string = process.cwd(),
+): Promise<NodeClass> {
+  // @npmcli/arborist DOES have partial support for pnpm structured node_modules
+  // folders. However, support is iffy resulting in unhappy path errors and hangs.
+  // So, to avoid the unhappy path, we restrict our usage to --dry-run loading
+  // of the node_modules folder.
+  const arb = new Arborist({
+    path: cwd,
+    ...SAFE_ARBORIST_REIFY_OPTIONS_OVERRIDES,
+  })
+  return await arb.loadActual()
+}

src/commands/fix/handle-fix.mts

@@ -1,9 +1,17 @@
+import { logger } from '@socketsecurity/registry/lib/logger'
+
+import { npmFix } from './npm-fix.mts'
 import { outputFixResult } from './output-fix-result.mts'
-import { runFix } from './run-fix.mts'
+import { pnpmFix } from './pnpm-fix.mts'
+import { CMD_NAME } from './shared.mts'
+import constants from '../../constants.mts'
+import { detectAndValidatePackageEnvironment } from '../../utils/package-environment.mts'
 
 import type { OutputKind } from '../../types.mts'
 import type { RangeStyle } from '../../utils/semver.mts'
 
+const { NPM, PNPM } = constants
+
 export async function handleFix({
   autoMerge,
   cwd,
@@ -23,12 +31,47 @@ export async function handleFix({
   test: boolean
   testScript: string
 }) {
-  const result = await runFix({
+  const pkgEnvResult = await detectAndValidatePackageEnvironment(cwd, {
+    cmdName: CMD_NAME,
+    logger,
+  })
+  if (!pkgEnvResult.ok) {
+    return pkgEnvResult
+  }
+
+  const pkgEnvDetails = pkgEnvResult.data
+  if (!pkgEnvDetails) {
+    return {
+      ok: false,
+      message: 'No package found',
+      cause: `No valid package environment was found in given cwd (${cwd})`,
+    }
+  }
+
+  logger.info(
+    `Fixing packages for ${pkgEnvDetails.agent} v${pkgEnvDetails.agentVersion}.\n`,
+  )
+
+  const { agent } = pkgEnvDetails
+  if (agent !== NPM && agent !== PNPM) {
+    return {
+      ok: false,
+      message: 'Not supported',
+      cause: `${agent} is not supported by this command at the moment.`,
+    }
+  }
+
+  // Lazily access spinner.
+  const { spinner } = constants
+  const fixer = agent === NPM ? npmFix : pnpmFix
+
+  const result = await fixer(pkgEnvDetails, {
     autoMerge,
     cwd,
     limit,
     purls,
     rangeStyle,
+    spinner,
     test,
     testScript,
   })