1 files changed, 12 insertions, 0 deletions
diff --git a/lib/render-msg.js b/lib/render-msg.js
index b4ba87a..684ea40 100644
--- a/lib/render-msg.js
+++ b/lib/render-msg.js
@@ -1111,12 +1111,24 @@ RenderMsg.prototype.npmPackages = function (cb) {
   function renderIdLink(id) {
     return [h('a', {href: self.toUrl(id)}, truncate(id, 8)), ' ']
   }
+  var singlePkg = self.c.mentions
+    && self.c.mentions.length === 1
+    && self.c.mentions[0]
+  var m = singlePkg && /^npm:(.*?):(.*?):/.exec(singlePkg.name)
+  var singlePkgSpec = m && (m[1] + (m[2] ? '@' + m[2] : ''))
   self.render.npmPackageMentions(self.c.mentions, function (err, el) {
     if (err) return cb(err)
     var dependencyLinks = u.toArray(self.c.dependencyBranch)
     var versionLinks = u.toArray(self.c.versionBranch)
     self.wrap(h('div', [
       el,
+      singlePkg ? h('p',
+        h('code',
+          'npm install --registry=' +
+            'http://' + self.app.host + ':' + self.app.port +
+            '/npm-registry/' + encodeURIComponent(self.msg.key) + ' ' +
+            singlePkgSpec),
+      ) : '',
       dependencyLinks.length ? h('div',
         'dependencies via: ', dependencyLinks.map(renderIdLink)
       ) : '',