From 0e470cd36fc1fc6c4ec6494b1a5bef57d5a9ac1d Mon Sep 17 00:00:00 2001
From: Sergey Cheparev <s.cheparev@s-v.de>
Date: Mon, 14 Apr 2014 13:05:40 +0200
Subject: [PATCH 1/2] Added install_requirements action

---
 providers/pip.rb | 14 ++++++++++++++
 resources/pip.rb |  2 +-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/providers/pip.rb b/providers/pip.rb
index 328bbf5..ebf8e18 100644
--- a/providers/pip.rb
+++ b/providers/pip.rb
@@ -76,6 +76,15 @@ def whyrun_supported?
   end
 end
 
+action :install_requirements do
+  description = "Installing packages from #{new_resource}"
+  converge_by(description) do
+    Chef::Log.info("Installing packages from #{new_resource}")
+    install_requirements_packages()
+    new_resource.updated_by_last_action(true)
+  end
+end
+
 def removing_package?
   if current_resource.version.nil?
     false # nothing to remove
@@ -150,6 +159,11 @@ def remove_package(version)
   pip_cmd('uninstall')
 end
 
+def install_requirements_packages()
+  new_resource.options "#{new_resource.options} -r"
+  pip_cmd('install')
+end
+
 def pip_cmd(subcommand, version='')
   options = { :timeout => new_resource.timeout, :user => new_resource.user, :group => new_resource.group }
   environment = Hash.new
diff --git a/resources/pip.rb b/resources/pip.rb
index 1475b3a..0084583 100644
--- a/resources/pip.rb
+++ b/resources/pip.rb
@@ -18,7 +18,7 @@
 # limitations under the License.
 #
 
-actions :install, :upgrade, :remove, :purge
+actions :install, :upgrade, :remove, :purge, :install_requirements
 default_action :install if defined?(default_action) # Chef > 10.8
 
 # Default action for Chef <= 10.8

From 3d57107c82be068d67dfe75d2023ada3f5e220ff Mon Sep 17 00:00:00 2001
From: Sergey Cheparev <s.cheparev@s-v.de>
Date: Mon, 14 Apr 2014 13:52:38 +0200
Subject: [PATCH 2/2] Added `install_requirements` attribute to readme

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index dd0b046..d436662 100644
--- a/README.md
+++ b/README.md
@@ -49,6 +49,7 @@ Install packages using the new hotness in Python package management...[`pip`](ht
 - :user: User to run pip as, for using with virtualenv
 - :group: Group to run pip as, for using with virtualenv
 - :purge: Purge a pip package (this usually entails removing configuration files as well as the package itself).  With pip packages this behaves the same as `:remove`
+- :install_requirements: Install requirements from the requirements file
 
 #### Attribute Parameters