Add get_app_version and version

youtube/__init__.py

@@ -1,4 +1,5 @@
 from youtube import util
+from .get_app_version import app_version
 import flask
 from flask import request
 import settings
@@ -32,6 +33,10 @@ def inject_theme_preference():
     return {
         'theme_path': '/youtube.com/static/' + theme_names[settings.theme] + '.css',
         'settings': settings,
+        # Detect version
+        'current_version': app_version()['version'],
+        'current_branch': app_version()['branch'],
+        'current_commit': app_version()['commit'],
     }
 
 

youtube/get_app_version/__init__.py

@@ -0,0 +1 @@
+from .get_app_version import *

youtube/get_app_version/get_app_version.py

@@ -0,0 +1,54 @@
+from __future__ import unicode_literals
+from subprocess import (
+    call,
+    STDOUT
+)
+from ..version import __version__
+import os
+import subprocess
+
+
+def app_version():
+    def minimal_env_cmd(cmd):
+        # make minimal environment
+        env = {}
+        for k in ['SYSTEMROOT', 'PATH']:
+            v = os.environ.get(k)
+            if v is not None:
+                env[k] = v
+
+        env['LANGUAGE'] = 'C'
+        env['LANG'] = 'C'
+        env['LC_ALL'] = 'C'
+        out = subprocess.Popen(
+            cmd, stdout=subprocess.PIPE, env=env).communicate()[0]
+        return out
+
+    if call(["git", "branch"], stderr=STDOUT,
+            stdout=open(os.devnull, 'w')) != 0:
+
+        subst_list = {
+            "version": __version__,
+            "branch": None,
+            "commit": None
+        }
+
+    else:
+        # version
+        describe = minimal_env_cmd(["git", "describe", "--always"])
+        git_revision = describe.strip().decode('ascii')
+        # branch
+        branch = minimal_env_cmd(["git", "branch"])
+        git_branch = branch.strip().decode('ascii').replace('* ', '')
+
+        subst_list = {
+            "version": __version__,
+            "branch": git_branch,
+            "commit": git_revision
+        }
+
+    return subst_list
+
+
+if __name__ == "__main__":
+    app_version()

youtube/templates/base.html

@@ -231,7 +231,11 @@
         </main>
         <footer class="footer">
             <p>This site is Free/Libre Software</p>
-            <p>Current version: 3304bab @ master</p>
+            {% if current_commit and current_version %}
+                <p>Current version: {{ current_version }}-{{ current_commit }} @ {{ current_branch }}</p>
+            {% else %}
+                <p>Current version: {{ current_version }}</p>
+            {% endif %}
         </footer>
     </body>
 

youtube/version.py

@@ -0,0 +1,3 @@
+from __future__ import unicode_literals
+
+__version__ = '0.1.0'