add `npm view .`

Fixes #5520

This adds back the ability to run `npm view .`

Includes multiple tests for `npm view`

1 files changed, 33 insertions, 4 deletions

diff --git a/lib/view.js b/lib/view.js
index 43d09cbbc..3bae2ab42 100644
--- a/lib/view.js
+++ b/lib/view.js
@@ -48,24 +48,54 @@ view.completion = function (opts, cb) {
 }
 
 var npm = require("./npm.js")
+  , readJson = require("read-package-json")
   , registry = npm.registry
   , log = require("npmlog")
   , util = require("util")
   , semver = require("semver")
   , mapToRegistry = require("./utils/map-to-registry.js")
   , npa = require("npm-package-arg")
+  , path = require('path')
 
 function view (args, silent, cb) {
   if (typeof cb !== "function") cb = silent, silent = false
-  if (!args.length) return cb("Usage: "+view.usage)
+
+  if (npm.config.get("global") === true) {
+    return cb(new Error("Cannot use view command in global mode."))
+  }
+
+  if (!args.length) args = ["."]
+
   var pkg = args.shift()
     , nv = npa(pkg)
     , name = nv.name
-    , version = nv.rawSpec || npm.config.get("tag")
+    , local = (name === "." || !name)
+
+  if (local) {
+    var dir = npm.prefix
+    readJson(path.resolve(dir, "package.json"), function (er, d) {
+      d = d || {}
+      if (er && er.code !== "ENOENT" && er.code !== "ENOTDIR") return cb(er)
+      if (!d.name) return cb(new Error("Invalid package.json"))
+
+      var p = d.name
+      nv = npa(p)
+      if (pkg && ~pkg.indexOf("@")) {
+        nv.rawSpec = pkg.split("@")[pkg.indexOf("@")]
+      }
 
-  if (name === ".") return cb(view.usage)
+      fetchAndRead(nv, args, silent, cb)
+    })
+  } else {
+    fetchAndRead(nv, args, silent, cb)
+  }
+}
 
+function fetchAndRead (nv, args, silent, cb) {
   // get the data about this package
+  var name = nv.name
+    , version = nv.rawSpec || npm.config.get("tag")
+
   mapToRegistry(name, npm.config, function (er, uri) {
     if (er) return cb(er)
 
@@ -268,4 +298,3 @@ function unparsePerson (d) {
        + (d.email ? " <"+d.email+">" : "")
        + (d.url ? " ("+d.url+")" : "")
 }
-