From d5a21340bf54d58e3e6074518c63da426dc39491 Mon Sep 17 00:00:00 2001
From: Chia-liang Kao <clkao@clkao.org>
Date: Mon, 29 Feb 2016 01:40:40 +0800
Subject: [PATCH 1/2] Improve usability when try to link a dat url

---
 cli.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cli.js b/cli.js
index 0d5aebc2..fd6736e5 100755
--- a/cli.js
+++ b/cli.js
@@ -81,6 +81,11 @@ function runCommand (loc) {
 
 function link (loc, db) {
   var dirs = args._.slice(1)
+  if (dirs.length === 1 && dirs[0].match(/^dat:/)) {
+    console.error('Do you mean `dat ' + dirs[0] + '` ?')
+    process.exit(1)
+  }
+
   if (dirs.length === 0) dirs = loc
 
   var stats = {}

From 672f203bf79e25fe9b5edbf05d108e7b5d1d388a Mon Sep 17 00:00:00 2001
From: Chia-liang Kao <clkao@clkao.org>
Date: Tue, 1 Mar 2016 15:20:09 +0800
Subject: [PATCH 2/2] add tests for link dat:// output

---
 tests/link.js | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tests/link.js b/tests/link.js
index 8aca0a33..230c8ef8 100644
--- a/tests/link.js
+++ b/tests/link.js
@@ -36,6 +36,16 @@ test('link with no args defaults to cwd', function (t) {
   st.end()
 })
 
+test('link with dat uri suggests correct usage', function (t) {
+  var st = spawn(t, dat + ' link dat://deadbeefcafe')
+  st.stderr.match(function (output) {
+    t.equal(output, 'Do you mean `dat dat://deadbeefcafe` ?\n')
+    st.kill()
+    return true
+  })
+  st.end()
+})
+
 test('connects if link process starts second', function (t) {
   var link
   var tmpdir = tmp + '/dat-link-restart-test'