merge: do early copy to deal with issue636
Without copies/renames, merges source names are 1:1 with their
targets. Copies and renames introduce the possibility that there will
be two merges with the same input but different output. By doing the
copy to the destination name before the merge, the actual merge
becomes 1:1 again, and no source is the input to two different merges.
- add a preliminary scan to applyupdates to do copies
- for the merge action, pass the old name (for finding ancestors) and
the new name (for input to the merge) to filemerge
- eliminate the old post-merge copy
- lookup file contents from new name in filemerge
- pass new name to external merge helper
- report merge failure at new name
- add a test
#!/usr/bin/env python
#
# This is the mercurial setup script.
#
# './setup.py install', or
# './setup.py --help' for more options
import sys
if not hasattr(sys, 'version_info') or sys.version_info < (2, 3, 0, 'final'):
raise SystemExit, "Mercurial requires python 2.3 or later."
import os
from distutils.core import setup, Extension
from distutils.command.install_data import install_data
import mercurial.version
import mercurial.demandimport
mercurial.demandimport.enable = lambda: None
extra = {}
# py2exe needs to be installed to work
try:
import py2exe
# Help py2exe to find win32com.shell
try:
import modulefinder
import win32com
for p in win32com.__path__[1:]: # Take the path to win32comext
modulefinder.AddPackagePath("win32com", p)
pn = "win32com.shell"
__import__(pn)
m = sys.modules[pn]
for p in m.__path__[1:]:
modulefinder.AddPackagePath(pn, p)
except ImportError:
pass
extra['console'] = ['hg']
except ImportError:
pass
# specify version string, otherwise 'hg identify' will be used:
version = ''
class install_package_data(install_data):
def finalize_options(self):
self.set_undefined_options('install',
('install_lib', 'install_dir'))
install_data.finalize_options(self)
mercurial.version.remember_version(version)
cmdclass = {'install_data': install_package_data}
setup(name='mercurial',
version=mercurial.version.get_version(),
author='Matt Mackall',
author_email='mpm@selenic.com',
url='http://selenic.com/mercurial',
description='Scalable distributed SCM',
license='GNU GPL',
packages=['mercurial', 'mercurial.hgweb', 'hgext', 'hgext.convert'],
ext_modules=[Extension('mercurial.mpatch', ['mercurial/mpatch.c']),
Extension('mercurial.bdiff', ['mercurial/bdiff.c']),
Extension('mercurial.base85', ['mercurial/base85.c'])],
data_files=[(os.path.join('mercurial', root),
[os.path.join(root, file_) for file_ in files])
for root, dirs, files in os.walk('templates')],
cmdclass=cmdclass,
scripts=['hg', 'hgmerge'],
options=dict(py2exe=dict(packages=['hgext']),
bdist_mpkg=dict(zipdist=True,
license='COPYING',
readme='contrib/macosx/Readme.html',
welcome='contrib/macosx/Welcome.html')),
**extra)