From 4cadaedbc5a4771b40f54972d56a31a26522777d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Luttringer?=
 <sebastien.luttringer@smartjog.com>
Date: Wed, 19 Jun 2013 12:01:45 +0200
Subject: [PATCH] Add git hash in version for git version

---
 configure.ac                  |  3 +++
 installsystems/__init__.py.in | 22 ++++++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/configure.ac b/configure.ac
index 014495c..898cedd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -37,4 +37,7 @@ AC_SUBST([zshcompdir], [$with_zshcompdir])
 
 AC_PROG_SED
 
+AM_CONDITIONAL([ISGIT],[test -d .git])
+AM_COND_IF([ISGIT],[VERSION=$VERSION+git])
+
 AC_OUTPUT
diff --git a/installsystems/__init__.py.in b/installsystems/__init__.py.in
index 7c2757c..1b868ec 100644
--- a/installsystems/__init__.py.in
+++ b/installsystems/__init__.py.in
@@ -24,4 +24,26 @@ canonical_name="installsystems"
 version = "@VERSION@"
 verbosity = 1 # 0: quiet, 1: normal, 2: debug
 
+def git_version():
+    import os
+    import sys
+    from subprocess import check_output, CalledProcessError
+    version = ""
+    cwd = os.getcwd()
+    try:
+        os.chdir(os.path.dirname(sys.argv[0]))
+        version = check_output(["git", "describe", "--tags", "--always" ],
+                               stdin=open(os.devnull, 'rb'),
+                               stderr=open(os.devnull, "wb")).strip()
+        if len(version) > 0:
+            version = "-" + version
+    except (OSError, CalledProcessError):
+        pass
+    finally:
+        os.chdir(cwd)
+    return version
+
+if version.find("+git") >= 0:
+    version += git_version()
+
 __all__ = []
-- 
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