Add get_app_version and version

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()