feat(init): reify on init new workspace (#4892)

Adds a minimalistic reify step that updates the installed tree after
initializing a new workspace.

Moved the shared update logic from `lib/commands/version.js` to a
`lib/workspaces/update-workspaces.js` module that is reused between
both `npm version` and `npm init`.

Relates to: https://github.com/npm/rfcs/issues/556
Relates to: https://github.com/npm/cli/pull/4588

3 files changed, 40 insertions, 13 deletions

diff --git a/tap-snapshots/test/lib/commands/init.js.test.cjs b/tap-snapshots/test/lib/commands/init.js.test.cjs
index 3ca9d9317..97a6722f3 100644
--- a/tap-snapshots/test/lib/commands/init.js.test.cjs
+++ b/tap-snapshots/test/lib/commands/init.js.test.cjs
@@ -10,26 +10,53 @@ Array []
 `
 
 exports[`test/lib/commands/init.js TAP workspaces no args > should print helper info 1`] = `
+Array []
+`
+
+exports[`test/lib/commands/init.js TAP workspaces no args, existing folder > should print helper info 1`] = `
+Array []
+`
+
+exports[`test/lib/commands/init.js TAP workspaces post workspace-init reify > should print helper info 1`] = `
 Array [
   Array [
     String(
-      This utility will walk you through creating a package.json file.
-      It only covers the most common items, and tries to guess sensible defaults.
-      
-      See \`npm help init\` for definitive documentation on these fields
-      and exactly what they do.
-      
-      Use \`npm install <pkg>\` afterwards to install a package and
-      save it as a dependency in the package.json file.
       
-      Press ^C at any time to quit.
+      added 1 package in 100ms
     ),
   ],
 ]
 `
 
-exports[`test/lib/commands/init.js TAP workspaces no args, existing folder > should print helper info 1`] = `
-Array []
+exports[`test/lib/commands/init.js TAP workspaces post workspace-init reify > should reify tree on init ws complete 1`] = `
+{
+  "name": "top-level",
+  "lockfileVersion": 2,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "top-level",
+      "workspaces": [
+        "a"
+      ]
+    },
+    "a": {
+      "version": "1.0.0",
+      "license": "ISC",
+      "devDependencies": {}
+    },
+    "node_modules/a": {
+      "resolved": "a",
+      "link": true
+    }
+  },
+  "dependencies": {
+    "a": {
+      "version": "file:a"
+    }
+  }
+}
+
 `
 
 exports[`test/lib/commands/init.js TAP workspaces with arg but missing workspace folder > should print helper info 1`] = `
diff --git a/tap-snapshots/test/lib/load-all-commands.js.test.cjs b/tap-snapshots/test/lib/load-all-commands.js.test.cjs
index b8c274b08..7bcdd949b 100644
--- a/tap-snapshots/test/lib/load-all-commands.js.test.cjs
+++ b/tap-snapshots/test/lib/load-all-commands.js.test.cjs
@@ -396,7 +396,7 @@ npm init [<@scope>/]<name> (same as \`npx [<@scope>/]create-<name>\`)
 Options:
 [-y|--yes] [-f|--force]
 [-w|--workspace <workspace-name> [-w|--workspace <workspace-name> ...]]
-[-ws|--workspaces] [--include-workspace-root]
+[-ws|--workspaces] [--no-workspaces-update] [--include-workspace-root]
 
 aliases: create, innit
 
diff --git a/tap-snapshots/test/lib/npm.js.test.cjs b/tap-snapshots/test/lib/npm.js.test.cjs
index e71bc8268..d15cae442 100644
--- a/tap-snapshots/test/lib/npm.js.test.cjs
+++ b/tap-snapshots/test/lib/npm.js.test.cjs
@@ -486,7 +486,7 @@ All commands:
                     Options:
                     [-y|--yes] [-f|--force]
                     [-w|--workspace <workspace-name> [-w|--workspace <workspace-name> ...]]
-                    [-ws|--workspaces] [--include-workspace-root]
+                    [-ws|--workspaces] [--no-workspaces-update] [--include-workspace-root]
                     
                     aliases: create, innit