Add revision information for deployment

Fixes:

  https://bugs.linaro.org/show_bug.cgi?id=226

by including either the last commit-id or the
tag if available

Change-Id: Iecd2a857036429bd37f9d3220853f3c1f575536a

4 files changed, 54 insertions, 3 deletions

diff --git a/templates/header.html b/templates/header.html
index 3a9e1cb..34c2eb3 100644
--- a/templates/header.html
+++ b/templates/header.html
@@ -34,7 +34,7 @@
   {% block content %}{% endblock %}
 </div>
 <div id="footer">
-  Running <a href="https://git.linaro.org/infrastructure/linaro-license-protection.git">linaro-license-protection</a> {{ revno }}.
+  Running <a href="https://git.linaro.org/infrastructure/linaro-license-protection.git">linaro-license-protection</a> <a href="https://git.linaro.org/infrastructure/linaro-license-protection.git/commit/{{ revno }}">{{ revno }}</a>.
 </div>
 </body>
 </html>
diff --git a/templates_releases/header.html b/templates_releases/header.html
index 7fd0bb7..133bb1b 100644
--- a/templates_releases/header.html
+++ b/templates_releases/header.html
@@ -34,7 +34,7 @@
   {% block content %}{% endblock %}
 </div>
 <div id="footer">
-  Running <a href="https://git.linaro.org/infrastructure/linaro-license-protection.git">linaro-license-protection</a> {{ revno }}.
+  Running <a href="https://git.linaro.org/infrastructure/linaro-license-protection.git">linaro-license-protection</a> <a href="https://git.linaro.org/infrastructure/linaro-license-protection.git/commit/{{ revno }}">{{ revno }}</a>.
 </div>
 </body>
 </html>
diff --git a/tests/test_version.py b/tests/test_version.py
new file mode 100644
index 0000000..af0ef1e
--- /dev/null
+++ b/tests/test_version.py
@@ -0,0 +1,33 @@
+#!/usr/bin/env python
+
+import unittest
+
+import version
+
+import mock
+
+
+class TestVersion(unittest.TestCase):
+    '''ensure the version module behaves well.'''
+
+    def setUp(self):
+        super(TestVersion, self).setUp()
+        m = mock.patch('subprocess.check_output')
+        self.addCleanup(m.stop)
+        self.subprocess = m.start()
+
+    def test_no_tags(self):
+        self.subprocess.return_value = 'fakehash ('
+        self.assertEquals('fakehash', version._get_version())
+
+    def test_short_tag(self):
+        self.subprocess.return_value = 'fakehash  (HEAD, tag: 2014.07, refs'
+        self.assertEquals('2014.07', version._get_version())
+
+    def test_longer_tag(self):
+        self.subprocess.return_value = 'fakehash  (HEAD, tag: 2014.07.02, refs'
+        self.assertEquals('2014.07.02', version._get_version())
+
+    def test_invalid_tag(self):
+        self.subprocess.return_value = 'fakehash  (HEAD, tag: aaaa.bb, refs'
+        self.assertEquals('fakehash', version._get_version())
diff --git a/version.py b/version.py
index 64d15ad..e8aca2b 100644
--- a/version.py
+++ b/version.py
@@ -1 +1,19 @@
-VERSION = '2014.05'
+import re
+import subprocess
+
+VERSION = None
+
+
+def _get_version():
+    '''return either the tag on HEAD or the shortened commit id if not found'''
+    out = subprocess.check_output(['git', 'log', '--format=%h %d', '-1'])
+    version, ref_names = out.split('(')
+    m = re.match(r'.*tag: (\d{4}\.\d{2}.*?),', ref_names)
+    if m:
+        version = m.group(1)
+    return version.strip()
+
+try:
+    VERSION = _get_version()
+except:
+    VERSION = '???'