feat: devEngines

docs/lib/content/configuring-npm/package-json.md

@@ -1129,6 +1129,32 @@ Like the `os` option, you can also block architectures:
 
 The host architecture is determined by `process.arch`
 
+### devEngines
+
+The `devEngines` field aids engineers working on a codebase to all be using the same tooling.
+
+You can specify a `devEngines` property in your `package.json` which will run before `install`, `ci`, and `run` commands. 
+
+> Note: `engines` and `devEngines` differ in object shape. They also function very differently. `engines` is designed to alert the user when a dependency uses a differening npm or node version that the project it's being used in, whereas `devEngines` is used to alert people interacting with the source code of a project.
+
+The supported keys under the `devEngines` property are `cpu`, `os`, `libc`, `runtime`, and `packageManager`. Each property can be an object or an array of objects. Objects must contain `name`, and optionally can specify `version`, and `onFail`. `onFail` can be `warn`, `error`, or `ignore`, and if left undefined is of the same value as `error`. `npm` will assume that you're running with `node`.
+Here's an example of a project that will fail if the environment is not `node` and `npm`. If you set `runtime.name` or `packageManager.name` to any other string, it will fail within the npm CLI.
+
+```json
+{
+  "devEngines": {
+    "runtime": {
+      "name": "node",
+      "onFail": "error"
+    },
+    "packageManager": {
+      "name": "npm",
+      "onFail": "error"
+    }
+  }
+}
+```
+
 ### private
 
 If you set `"private": true` in your package.json, then npm will refuse to

lib/arborist-cmd.js

@@ -18,6 +18,7 @@ class ArboristCmd extends BaseCommand {
 
   static workspaces = true
   static ignoreImplicitWorkspace = false
+  static checkDevEngines = true
 
   constructor (npm) {
     super(npm)

lib/base-cmd.js

@@ -1,10 +1,12 @@
 const { log } = require('proc-log')
 
 class BaseCommand {
+  // these defaults can be overridden by individual commands
   static workspaces = false
   static ignoreImplicitWorkspace = true
+  static checkDevEngines = false
 
-  // these are all overridden by individual commands
+  // these should always be overridden by individual commands
   static name = null
   static description = null
   static params = null
@@ -129,6 +131,63 @@ class BaseCommand {
     }
   }
 
+  // Checks the devEngines entry in the package.json at this.localPrefix
+  async checkDevEngines () {
+    const force = this.npm.flatOptions.force
+
+    const { devEngines } = await require('@npmcli/package-json')
+      .normalize(this.npm.config.localPrefix)
+      .then(p => p.content)
+      .catch(() => ({}))
+
+    if (typeof devEngines === 'undefined') {
+      return
+    }
+
+    const { checkDevEngines, currentEnv } = require('npm-install-checks')
+    const current = currentEnv.devEngines({
+      nodeVersion: this.npm.nodeVersion,
+      npmVersion: this.npm.version,
+    })
+
+    const failures = checkDevEngines(devEngines, current)
+    const warnings = failures.filter(f => f.isWarn)
+    const errors = failures.filter(f => f.isError)
+
+    const genMsg = (failure, i = 0) => {
+      return [...new Set([
+        // eslint-disable-next-line
+        i === 0 ? 'The developer of this package has specified the following through devEngines' : '',
+        `${failure.message}`,
+        `${failure.errors.map(e => e.message).join('\n')}`,
+      ])].filter(v => v).join('\n')
+    }
+
+    [...warnings, ...(force ? errors : [])].forEach((failure, i) => {
+      const message = genMsg(failure, i)
+      log.warn('EBADDEVENGINES', message)
+      log.warn('EBADDEVENGINES', {
+        current: failure.current,
+        required: failure.required,
+      })
+    })
+
+    if (force) {
+      return
+    }
+
+    if (errors.length) {
+      const failure = errors[0]
+      const message = genMsg(failure)
+      throw Object.assign(new Error(message), {
+        engine: failure.engine,
+        code: 'EBADDEVENGINES',
+        current: failure.current,
+        required: failure.required,
+      })
+    }
+  }
+
   async setWorkspaces () {
     const { relative } = require('node:path')
 

lib/commands/run-script.js

@@ -21,6 +21,7 @@ class RunScript extends BaseCommand {
   static workspaces = true
   static ignoreImplicitWorkspace = false
   static isShellout = true
+  static checkDevEngines = true
 
   static async completion (opts, npm) {
     const argv = opts.conf.argv.remain

lib/npm.js

@@ -247,6 +247,10 @@ class Npm {
       execWorkspaces = true
     }
 
+    if (command.checkDevEngines && !this.global) {
+      await command.checkDevEngines()
+    }
+
     return time.start(`command:${cmd}`, () =>
       execWorkspaces ? command.execWorkspaces(args) : command.exec(args))
   }

lib/utils/error-message.js

@@ -200,6 +200,13 @@ const errorMessage = (er, npm) => {
       ].join('\n')])
       break
 
+    case 'EBADDEVENGINES': {
+      const { current, required } = er
+      summary.push(['EBADDEVENGINES', er.message])
+      detail.push(['EBADDEVENGINES', { current, required }])
+      break
+    }
+
     case 'EBADPLATFORM': {
       const actual = er.current
       const expected = { ...er.required }