Added support for defining command aliases in distutils configuration

files, under the "[aliases]" section.  To prevent recursion and to allow
aliases to call the command of the same name, a given alias can be expanded
only once per command-line invocation.  You can define new aliases with the
"alias" command, either for the local, global, or per-user configuration.

--HG--
branch : setuptools
extra : convert_revision : svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/sandbox/trunk/setuptools%4041094

1 files changed, 39 insertions, 0 deletions

diff --git a/setuptools/command/alias.py b/setuptools/command/alias.py
new file mode 100755
index 00000000..42d6b2fc
--- /dev/null
+++ b/setuptools/command/alias.py
@@ -0,0 +1,39 @@
+import distutils, os
+from setuptools import Command
+from distutils.util import convert_path
+from distutils import log
+from distutils.errors import *
+from setuptools.command.setopt import edit_config, option_base
+
+class alias(option_base):
+    """Abstract base class for commands that mess with config files"""
+    
+    description = "set an option in setup.cfg or another config file"
+
+    user_options = [
+        ('alias=',  'a',  'the name of the new pseudo-command'),
+        ('command=', 'c', 'command(s) and options to invoke when used'),
+        ('remove',   'r', 'remove (unset) the alias'), 
+    ] + option_base.user_options
+
+    boolean_options = option_base.boolean_options + ['remove']
+
+    def initialize_options(self):
+        option_base.initialize_options(self)
+        self.alias = None
+        self.command = None
+        self.remove = None
+
+    def finalize_options(self):
+        option_base.finalize_options(self)
+        if self.alias is None:
+            raise DistutilsOptionError("Must specify name (--alias/-a)")
+        if self.command is None and not self.remove:
+            raise DistutilsOptionError("Must specify --command or --remove")
+
+    def run(self):
+        edit_config(
+            self.filename, {'aliases': {self.alias:self.command}},
+            self.dry_run
+        )
+