[Distutils] What about an info command?

[Bastian Kleineidam]

Hello,

I'd like to extract some information stored in setup.py, namely
the package version.

A way to provide this is an "info" command. So you can have:
./setup.py info [--version,--name,--url,--author,...]

Heres a patch. It prints the infos in a specific order (as specified
in user_options), each on its own line.
It even prints if you specify -q. You should specify -q because then you
get rid of the "running info" line.
So as a result "python setup.py -q info --version" prints exactly the
package version, nothing more, nothing less.


Bastian Kleineidam


diff -c -r --ignore-all-space --exclude=*.pyc -N distutils.orig/distutils/command/__init__.py distutils.patched/distutils/command/__init__.py
*** distutils.orig/distutils/command/__init__.py	Fri Mar 31 12:16:06 2000
--- distutils.patched/distutils/command/__init__.py	Fri Apr  7 02:40:42 2000
***************
*** 12,17 ****
--- 12,18 ----
             'install',
             'install_lib',
             'clean',
+            'info',
             'sdist',
             'bdist',
             'bdist_dumb',
diff -c -r --ignore-all-space --exclude=*.pyc -N distutils.orig/distutils/command/info.py distutils.patched/distutils/command/info.py
*** distutils.orig/distutils/command/info.py	Thu Jan  1 01:00:00 1970
--- distutils.patched/distutils/command/info.py	Fri Apr  7 03:02:39 2000
***************
*** 0 ****
--- 1,30 ----
+ """distutils.command.info
+ 
+ Implements the Distutils 'info' command."""
+ 
+ from distutils.core import Command
+ 
+ class info (Command):
+ 
+     description = "print infos stored in setup.py"
+     user_options = [
+         ('version', 'V', "print version"),
+         ('author', None, "print author"),
+         ('author-email', None, "print the authors email"),
+         ('description', None, "print description"),
+         ('url', None, "print url"),
+         # more if needed...
+     ]
+ 
+     def initialize_options(self):
+         for arg in map(lambda x: x[0], self.user_options):
+             # do not set to None: see Command.__getattr__
+             setattr(self, arg, 0)
+ 
+     def finalize_options(self):
+         pass
+ 
+     def run(self):
+         for arg in map(lambda x: x[0], self.user_options):
+             if getattr(self, arg):
+                print getattr(self.distribution, arg)