1 files changed, 78 insertions, 0 deletions
diff --git a/version.py b/version.py
new file mode 100755
index 0000000..2609860
--- /dev/null
+++ b/version.py
@@ -0,0 +1,78 @@
+#!/usr/bin/env python
+# Authors: Douglas Creager <dcreager@dcreager.net>
+#          Calum Lind <calumlind@gmail.com>
+#
+# This file is placed into the public domain.
+#
+# Calculates the current version number by first checking output of “git describe”,
+# modified to conform to PEP 386 versioning scheme.  If “git describe” fails
+# (likely due to using release tarball rather than git working copy), then fall
+# back on reading the contents of the RELEASE-VERSION file.
+#
+# Usage: Import in setup.py, and use result of get_version() as package version:
+#
+# from version import *
+#
+# setup(
+#     ...
+#     version=get_version(),
+#     ...
+# )
+#
+# Script will automatically update the RELEASE-VERSION file, if needed.
+# Note that  RELEASE-VERSION file should *not* be checked into git; please add
+# it to your top-level .gitignore file.
+#
+# You'll probably want to distribute the RELEASE-VERSION file in your
+# sdist tarballs; to do this, just create a MANIFEST.in file that
+# contains the following line:
+#
+#   include RELEASE-VERSION
+#
+
+import os
+import subprocess
+
+__all__ = ('get_version',)
+
+VERSION_FILE = os.path.join(os.path.dirname(__file__), 'RELEASE-VERSION')
+
+
+def call_git_describe(prefix='', suffix=''):
+    cmd = 'git describe --tags --match %s[0-9]*' % prefix
+    try:
+        output = subprocess.check_output(cmd.split(), stderr=subprocess.PIPE)
+    except (OSError, subprocess.CalledProcessError):
+        return None
+    else:
+        version = output.decode('utf-8').strip().replace(prefix, '')
+        # A dash signifies git commit increments since parent tag.
+        if '-' in version:
+            segment = '.dev' if 'dev' in version else '.post'
+            version = segment.join(version.replace(suffix, '').split('-')[:2])
+        return version
+
+
+def get_version(prefix='deluge-', suffix='.dev0'):
+    try:
+        with open(VERSION_FILE) as f:
+            release_version = f.readline().strip()
+    except OSError:
+        release_version = None
+
+    version = call_git_describe(prefix, suffix)
+
+    if not version:
+        version = release_version
+    if not version:
+        raise ValueError('Cannot find the version number!')
+
+    if version != release_version:
+        with open(VERSION_FILE, 'w') as f:
+            f.write('%s\n' % version)
+
+    return version
+
+
+if __name__ == '__main__':
+    print(get_version())