fix: don't reify if package.json doesn't exist or is empty object

DEPENDENCIES.md

@@ -134,6 +134,7 @@ graph LR;
   npm-->pacote;
   npm-->parse-conflict-json;
   npm-->proc-log;
+  npm-->read-package-json-fast;
   npm-->read;
   npm-->semver;
   npm-->ssri;
@@ -553,6 +554,7 @@ graph LR;
   npm-->parse-conflict-json;
   npm-->proc-log;
   npm-->qrcode-terminal;
+  npm-->read-package-json-fast;
   npm-->read;
   npm-->remark-gfm;
   npm-->remark-github;

lib/commands/install.js

@@ -8,6 +8,8 @@ const { resolve, join } = require('path')
 const runScript = require('@npmcli/run-script')
 const pacote = require('pacote')
 const checks = require('npm-install-checks')
+const path = require('node:path')
+const rpj = require('read-package-json-fast')
 
 const ArboristWorkspaceCmd = require('../arborist-cmd.js')
 class Install extends ArboristWorkspaceCmd {
@@ -140,6 +142,19 @@ class Install extends ArboristWorkspaceCmd {
       throw this.usageError()
     }
 
+    if (!isGlobalInstall) {
+      const pkgPath = path.join(this.npm.prefix, './package.json')
+      const pkg = await rpj(pkgPath)
+      const isPkgEmpty = Object.keys(pkg).length === 0 && pkg.constructor === Object
+
+      const emptyJson = new Error()
+      emptyJson.code = 'EEMPTYPKGJSON'
+      emptyJson.path = pkgPath
+      if (isPkgEmpty) {
+        throw emptyJson
+      }
+    }
+
     const Arborist = require('@npmcli/arborist')
     const opts = {
       ...this.npm.flatOptions,

lib/utils/error-message.js

@@ -409,6 +409,14 @@ const errorMessage = (er, npm) => {
       ])
       break
 
+    case 'EEMPTYPKGJSON':
+      short.push(['eemptypkgjson', er.message])
+      detail.push([
+        'eemptypkgjson',
+        'The root of package.json is an empty object',
+      ])
+      break
+
     default:
       short.push(['', er.message || er])
       if (er.signal) {

package-lock.json

@@ -148,6 +148,7 @@
         "proc-log": "^3.0.0",
         "qrcode-terminal": "^0.12.0",
         "read": "^2.1.0",
+        "read-package-json-fast": "^3.0.2",
         "semver": "^7.5.4",
         "spdx-expression-parse": "^3.0.1",
         "ssri": "^10.0.5",

package.json

@@ -110,6 +110,7 @@
     "proc-log": "^3.0.0",
     "qrcode-terminal": "^0.12.0",
     "read": "^2.1.0",
+    "read-package-json-fast": "^3.0.2",
     "semver": "^7.5.4",
     "spdx-expression-parse": "^3.0.1",
     "ssri": "^10.0.5",
@@ -183,6 +184,7 @@
     "proc-log",
     "qrcode-terminal",
     "read",
+    "read-package-json-fast",
     "semver",
     "spdx-expression-parse",
     "ssri",