add distro as a submodule

Author: ssbanerje

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "lib/distro"]
+	path = lib/distro
+	url = [email protected]:python-distro/distro.git

README.md

@@ -6,12 +6,10 @@ Conditional execution of dotbot directives based on the local platform.
 ## Prerequisites
 This plugin requires [`dotbot`](https://github.com/anishathalye/dotbot) to be installed.
 
-Also, at runtime this plugin requires the `distro` package to be installed. To install distro run:
-`pip install -U distro`
-
 ## Installation
 1. Run `git submodule add https://github.com/ssbanerje/dotbot-ifplatform.git`
-2. Pass in the CLI argument `--plugin-dir dotbot-ifplatform` when executing the `dotbot` executable.
+2. Run `git submodule update --init --recursive`
+3. Pass in the CLI argument `--plugin-dir dotbot-ifplatform` when executing the `dotbot` executable.
 
 
 ## Usage

ifplatform.py

@@ -1,11 +1,24 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
-import distro
+import os
+import sys
 import dotbot
 from dotbot.dispatcher import Dispatcher
 
 
+def _inject_distro():
+    # Find distro in submodule
+    root_dir = os.path.dirname(os.path.realpath(__file__))
+    path = os.path.join(root_dir, 'lib/distro')
+    # Update path
+    sys.path.insert(0, path)
+
+
+_inject_distro()
+import distro
+
+
 class IfPlatform(dotbot.Plugin):
     _distros = [
         'anylinux',     # All linux