Author: martin.v.loewis
Date: Mon Dec 1 05:38:52 2008
New Revision: 67464

Log:
Issue #4073: Add 2to3 support to build_scripts, refactor that support
in build_py.


Modified:
python/branches/py3k/Demo/distutils/test2to3/setup.py
python/branches/py3k/Lib/distutils/command/build_py.py
python/branches/py3k/Lib/distutils/command/build_scripts.py
python/branches/py3k/Lib/distutils/util.py
python/branches/py3k/Misc/NEWS

Modified: python/branches/py3k/Demo/distutils/test2to3/setup.py
==============================================================================
--- python/branches/py3k/Demo/distutils/test2to3/setup.py (original)
+++ python/branches/py3k/Demo/distutils/test2to3/setup.py Mon Dec 1 05:38:52 2008
@@ -6,6 +6,11 @@
except ImportError:
from distutils.command.build_py import build_py

+try:
+ from distutils.command.build_scripts import build_scripts_2to3 as build_scripts
+except ImportError:
+ from distutils.command.build_scripts import build_scripts
+
setup(
name = "test2to3",
version = "1.0",
@@ -14,5 +19,8 @@
author_email = "python-dev at python.org",
license = "PSF license",
packages = ["test2to3"],
- cmdclass = {'build_py':build_py}
+ scripts = ["maintest.py"],
+ cmdclass = {'build_py':build_py,
+ 'build_scripts':build_scripts,
+ }
)

Modified: python/branches/py3k/Lib/distutils/command/build_py.py
==============================================================================
--- python/branches/py3k/Lib/distutils/command/build_py.py (original)
+++ python/branches/py3k/Lib/distutils/command/build_py.py Mon Dec 1 05:38:52 2008
@@ -9,7 +9,7 @@

from distutils.core import Command
from distutils.errors import *
-from distutils.util import convert_path
+from distutils.util import convert_path, Mixin2to3
from distutils import log

class build_py (Command):
@@ -384,19 +384,7 @@
byte_compile(files, optimize=self.optimize,
force=self.force, prefix=prefix, dry_run=self.dry_run)

-from lib2to3.refactor import RefactoringTool, get_fixers_from_package
-class DistutilsRefactoringTool(RefactoringTool):
- def log_error(self, msg, *args, **kw):
- # XXX ignores kw
- log.error(msg, *args)
-
- def log_message(self, msg, *args):
- log.info(msg, *args)
-
- def log_debug(self, msg, *args):
- log.debug(msg, *args)
-
-class build_py_2to3(build_py):
+class build_py_2to3(build_py, Mixin2to3):
def run(self):
self.updated_files = []

@@ -408,12 +396,7 @@
self.build_package_data()

# 2to3
- fixers = get_fixers_from_package('lib2to3.fixes')
- options = dict(fix=[], list_fixes=[],
- print_function=False, verbose=False,
- write=True)
- r = DistutilsRefactoringTool(fixers, options)
- r.refactor(self.updated_files, write=True)
+ self.run_2to3(self.updated_files)

# Remaining base class code
self.byte_compile(self.get_outputs(include_bytecode=0))

Modified: python/branches/py3k/Lib/distutils/command/build_scripts.py
==============================================================================
--- python/branches/py3k/Lib/distutils/command/build_scripts.py (original)
+++ python/branches/py3k/Lib/distutils/command/build_scripts.py Mon Dec 1 05:38:52 2008
@@ -9,7 +9,7 @@
from distutils import sysconfig
from distutils.core import Command
from distutils.dep_util import newer
-from distutils.util import convert_path
+from distutils.util import convert_path, Mixin2to3
from distutils import log

# check if Python is called on the first line with this expression
@@ -59,6 +59,7 @@
"""
self.mkpath(self.build_dir)
outfiles = []
+ updated_files = []
for script in self.scripts:
adjust = False
script = convert_path(script)
@@ -92,6 +93,7 @@
if adjust:
log.info("copying and adjusting %s -> %s", script,
self.build_dir)
+ updated_files.append(outfile)
if not self.dry_run:
outf = open(outfile, "w")
if not sysconfig.python_build:
@@ -112,6 +114,7 @@
else:
if f:
f.close()
+ updated_files.append(outfile)
self.copy_file(script, outfile)

if os.name == 'posix':
@@ -125,3 +128,13 @@
log.info("changing mode of %s from %o to %o",
file, oldmode, newmode)
os.chmod(file, newmode)
+ # XXX should we modify self.outfiles?
+ return outfiles, updated_files
+
+class build_scripts_2to3(build_scripts, Mixin2to3):
+
+ def copy_scripts(self):
+ outfiles, updated_files = build_scripts.copy_scripts(self)
+ if not self.dry_run:
+ self.run_2to3(updated_files)
+ return outfiles, updated_files

Modified: python/branches/py3k/Lib/distutils/util.py
==============================================================================
--- python/branches/py3k/Lib/distutils/util.py (original)
+++ python/branches/py3k/Lib/distutils/util.py Mon Dec 1 05:38:52 2008
@@ -531,3 +531,51 @@
lines = [x.strip() for x in header.split('\n')]
sep = '\n' + 8*' '
return sep.join(lines)
+
+# 2to3 support
+
+def run_2to3(files, fixer_names=None, options=None, explicit=None):
+ """Invoke 2to3 on a list of Python files.
+ The files should all come from the build area, as the
+ modification is done in-place. To reduce the build time,
+ only files modified since the last invocation of this
+ function should be passed in the files argument."""
+
+ if not files:
+ return
+
+ # Make this class local, to delay import of 2to3
+ from lib2to3.refactor import RefactoringTool, get_fixers_from_package
+ class DistutilsRefactoringTool(RefactoringTool):
+ def log_error(self, msg, *args, **kw):
+ log.error(msg, *args)
+
+ def log_message(self, msg, *args):
+ log.info(msg, *args)
+
+ def log_debug(self, msg, *args):
+ log.debug(msg, *args)
+
+ if fixer_names is None:
+ fixer_names = get_fixers_from_package('lib2to3.fixes')
+ r = DistutilsRefactoringTool(fixer_names, options=options)
+ r.refactor(files, write=True)
+
+class Mixin2to3:
+ '''Mixin class for commands that run 2to3.
+ To configure 2to3, setup scripts may either change
+ the class variables, or inherit from individual commands
+ to override how 2to3 is invoked.'''
+
+ # provide list of fixers to run;
+ # defaults to all from lib2to3.fixers
+ fixer_names = None
+
+ # options dictionary
+ options = None
+
+ # list of fixers to invoke even though they are marked as explicit
+ explicit = None
+
+ def run_2to3(self, files):
+ return run_2to3(files, self.fixer_names, self.options, self.explicit)

Modified: python/branches/py3k/Misc/NEWS
==============================================================================
--- python/branches/py3k/Misc/NEWS (original)
+++ python/branches/py3k/Misc/NEWS Mon Dec 1 05:38:52 2008
@@ -24,6 +24,9 @@
Library
-------

+- Issue #4073: Add 2to3 support to build_scripts, refactor that support
+ in build_py.
+
- IDLE would print a "Unhandled server exception!" message when internal
debugging is enabled.

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