waifulib: update

scripts/waifulib/gitversion.py

@@ -0,0 +1,47 @@
+# encoding: utf-8
+# gitversion.py -- waf plugin to get git version
+# Copyright (C) 2018 a1batross
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+import subprocess
+from waflib import Configure, Logs
+
+@Configure.conf
+def get_git_version(conf):
+	# try grab the current version number from git
+	node = conf.path.find_node('.git')
+	
+	if not node:
+		return None
+	
+	try:
+		stdout = conf.cmd_and_log([conf.env.GIT[0], 'describe', '--dirty', '--always'],
+			cwd = node.parent)
+		version = stdout.strip()
+	except Exception as e:
+		version = ''
+		Logs.debug(str(e))
+
+	if len(version) == 0:
+		version = None
+
+	return version
+
+def configure(conf):
+	if conf.find_program('git', mandatory = False):	
+		conf.start_msg('Checking git hash')
+		ver = conf.get_git_version()
+
+		if ver:
+			conf.env.GIT_VERSION = ver
+			conf.end_msg(conf.env.GIT_VERSION)
+		else:
+			conf.end_msg('no', color='YELLOW')