satex version

satex.py

@@ -11,9 +11,12 @@
 import subprocess
 import sys
 import tempfile
+import textwrap
 import time
 from urllib.request import urlopen
 
+__version__ = "0.93-dev"
+
 DOCKER_NS = "satex"
 REGISTRY_BASEURL = "https://raw.githubusercontent.com/sat-heritage/docker-images/master/"
 
@@ -390,6 +393,8 @@ def mrproper(args):
         info(" ".join(argv))
         sys.exit(subprocess.call(argv))
 
+def print_version(args):
+    print(__version__)
 #
 ##
 
@@ -403,7 +408,13 @@ def main(redirected=False):
         from satex import main
         return main(redirected=True)
 
-    parser = argparse.ArgumentParser(prog=sys.argv[0])
+    parser = argparse.ArgumentParser(prog=os.path.basename(sys.argv[0]),
+            description="Helper script for managing SAT Heritage Docker images",
+            formatter_class=argparse.RawDescriptionHelpFormatter,
+            epilog=textwrap.dedent(f"""\
+            GitHub:    https://github.com/sat-heritage/docker-images
+            DockerHub: https://hub.docker.com/u/satex
+            Version:   {__version__}"""))
 
     parser.add_argument("--refresh-list", default=False, action="store_true",
             help="Force refresh of the list of images")
@@ -478,6 +489,10 @@ def main(redirected=False):
                 parents=[spec_parser])
         p.set_defaults(func=push_images)
 
+    subparsers.add_parser("version",
+                help="Print script version")\
+        .set_defaults(func=print_version)
+
     args = parser.parse_args()
     if not hasattr(args, "func"):
         return parser.print_help()

setup.py

@@ -1,9 +1,20 @@
 # -*- coding: utf-8
 
+import os
+import re
 from setuptools import setup
 
+META = {}
+META_FILE = os.path.join(NAME, "satex.py")
+with open(META_FILE) as f:
+    __data = f.read()
+for key in ["version"]:
+    match = re.search(r"^__{0}__ = ['\"]([^'\"]*)['\"]".format(key), __data, re.M)
+    if not match:
+        raise RuntimeError("Unable to find __{meta}__ string.".format(meta=key))
+    META[key] = match.group(1)
+
 setup(name="satex",
-    version = "0.93",
     author = "Loïc Paulevé",
     author_email = "[email protected]",
     url = "https://github.com/sat-heritage/docker-images",
@@ -14,5 +25,6 @@
         "console_scripts": [
             "satex= satex:main"
         ]
-    }
+    },
+    **META
 )