Add message on failed installation of deps. (#12)

yyuu · Jul 12, 2013 · 5d24339 · 5d24339
1 parent 8bf8029
commit 5d24339
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/lib/capistrano-rbenv.rb b/lib/capistrano-rbenv.rb
@@ -272,7 +272,13 @@ def _update_config(script_file, file)
             end
           }
           task(:dependencies, :except => { :no_release => true }) {
-            platform.packages.install(rbenv_ruby_dependencies)
+            begin
+              platform.packages.install(rbenv_ruby_dependencies)
+            rescue
+              missing_dependencies = rbenv_ruby_dependencies.reject { |dep| platform.packages.installed?(dep) rescue false }
+              abort("Failed to install rbenv dependencies: #{missing_dependencies.join(", ")}\n\n" +
+                    "Please install missing packages from outside of Capistrano, or allow #{user} to invoke commands via sudo(8).")
+            end
           }
 
           _cset(:rbenv_ruby_versions) { rbenv.versions }