Improved error formatting for missing DSL methods

dpickett · Feb 12, 2012 · daf5d4a · daf5d4a
1 parent aa7c47c
commit daf5d4a
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/lib/bundler/dsl.rb b/lib/bundler/dsl.rb
@@ -156,12 +156,13 @@ def env(name)
 
     def method_missing(name, *args)
       call = caller[0].split ':'
-      line = call[1]
-      content = Bundler.read_file(call[0]).lines.to_a[line.to_i - 1]
+      line = call[1].to_i
+      lines = ([0, line - 3].max)..line + 2
+      content = Bundler.read_file(call[0]).lines.to_a[lines].join('  ').strip
 
       raise GemfileError, "The Gemfile doesn't support the method `#{name}`.\n" \
                           "Please check your Gemfile's syntax at line #{line}:\n\n" \
-                          "    #{content}"
+                          "  #{content}\n"
     end
 
     # Deprecated methods