Merge ~hloeung/apt-stresstest-charm:master into apt-stresstest-charm:master

[Haw Loeung]

Add showing charm source version/commit in juju status output

[🤖 Canonical IS Merge Bot (canonical-is-mergebot)]

This merge proposal is being monitored by mergebot. Change the status to Approved to merge.

[Thomas Cuthbert (tcuthbert)]

LGTM +1

review: Approve

[🤖 Canonical IS Merge Bot (canonical-is-mergebot)]

Change successfully merged at revision f4c56c089e6ef48b9081e8e0572c9f14c1ad351d

diff --git a/reactive/apt_stresstest.py b/reactive/apt_stresstest.py
index 55893ba..31712b1 100644
--- a/reactive/apt_stresstest.py
+++ b/reactive/apt_stresstest.py
@@ -167,4 +167,14 @@ def install_apt_stresstest(exec_relation):
     os.chown(LOGFILE, uid, gid)
 
     set_state('apt-stresstest.installed')
-    hookenv.status_set('active', 'apt-stresstest installed.')
+    revision = ''
+    if os.path.exists('version'):
+        with open('version') as f:
+            line = f.readline().strip()
+        # We only want the first 8 characters, that's enough to tell
+        # which version of the charm we're using.
+        if len(line) > 8:
+            revision = ' (source version/commit {}…)'.format(line[:8])
+        else:
+            revision = ' (source version/commit {})'.format(line)
+    hookenv.status_set('active', 'Ready{}'.format(revision))