packaging: support building WiX installers with PyOxidizer
We initially implemented PyOxidizer support for Inno installers.
That did most of the heavy work of integrating PyOxidizer into
the packaging system. Implementing WiX installer support was
pretty straightforward.
Aspects of this patch look very similar to Inno's.
The main difference is the handling of the Visual C++
Redistributable Runtime files.
The WiX installer was formerly using merge modules to
install the VC++ 9.0 runtime because this feature is
supported by the WiX installer (it isn't easily available
to Inno installers).
Our strategy for the runtime files is to install the
vcruntime140.dll file next to hg.exe just like any other
file. While we could leverage WiX's functionality for invoking
a VCRedist installer, I don't want to deal with the complexity
at this juncture. So, we let run_pyoxidizer() copy vcruntime140.dll
into the staging directory (like it does for Inno) and our
dynamic WiX XML generator picks it up as a regular file and
installs it.
We did, however, have to teach mercurial.wxs how to conditionally
use the merge modules. But this was rather straightforward.
Comparing the file layout of the WiX installers before and
after:
* Various lib/*.{pyd, dll} files no longer exist
* python27.dll was replaced by python37.dll
* vcruntime140.dll was added
All these changes are expected due to the transition to
Python 3 and to PyOxidizer, which embeded the .pyd and .dll files
in hg.exe.
Differential Revision: https://phab.mercurial-scm.org/D8477
# Copyright 2012 Logilab SA <contact@logilab.fr>
# Pierre-Yves David <pierre-yves.david@ens-lyon.org>
# Octobus <contact@octobus.net>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
#####################################################################
### Extension helper ###
#####################################################################
from __future__ import absolute_import
from . import (
commands,
error,
extensions,
pycompat,
registrar,
)
from hgdemandimport import tracing
class exthelper(object):
"""Helper for modular extension setup
A single helper should be instantiated for each module of an
extension, where a command or function needs to be wrapped, or a
command, extension hook, fileset, revset or template needs to be
registered. Helper methods are then used as decorators for
these various purposes. If an extension spans multiple modules,
all helper instances should be merged in the main module.
All decorators return the original function and may be chained.
Aside from the helper functions with examples below, several
registrar method aliases are available for adding commands,
configitems, filesets, revsets, and templates. Simply decorate
the appropriate methods, and assign the corresponding exthelper
variable to a module level variable of the extension. The
extension loading mechanism will handle the rest.
example::
# ext.py
eh = exthelper.exthelper()
# As needed:
cmdtable = eh.cmdtable
configtable = eh.configtable
filesetpredicate = eh.filesetpredicate
revsetpredicate = eh.revsetpredicate
templatekeyword = eh.templatekeyword
@eh.command('mynewcommand',
[('r', 'rev', [], _('operate on these revisions'))],
_('-r REV...'),
helpcategory=command.CATEGORY_XXX)
def newcommand(ui, repo, *revs, **opts):
# implementation goes here
eh.configitem('experimental', 'foo',
default=False,
)
@eh.filesetpredicate('lfs()')
def filesetbabar(mctx, x):
return mctx.predicate(...)
@eh.revsetpredicate('hidden')
def revsetbabar(repo, subset, x):
args = revset.getargs(x, 0, 0, 'babar accept no argument')
return [r for r in subset if 'babar' in repo[r].description()]
@eh.templatekeyword('babar')
def kwbabar(ctx):
return 'babar'
"""
def __init__(self):
self._uipopulatecallables = []
self._uicallables = []
self._extcallables = []
self._repocallables = []
self._commandwrappers = []
self._extcommandwrappers = []
self._functionwrappers = []
self.cmdtable = {}
self.command = registrar.command(self.cmdtable)
self.configtable = {}
self.configitem = registrar.configitem(self.configtable)
self.filesetpredicate = registrar.filesetpredicate()
self.revsetpredicate = registrar.revsetpredicate()
self.templatekeyword = registrar.templatekeyword()
def merge(self, other):
self._uicallables.extend(other._uicallables)
self._uipopulatecallables.extend(other._uipopulatecallables)
self._extcallables.extend(other._extcallables)
self._repocallables.extend(other._repocallables)
self.filesetpredicate._merge(other.filesetpredicate)
self.revsetpredicate._merge(other.revsetpredicate)
self.templatekeyword._merge(other.templatekeyword)
self._commandwrappers.extend(other._commandwrappers)
self._extcommandwrappers.extend(other._extcommandwrappers)
self._functionwrappers.extend(other._functionwrappers)
self.cmdtable.update(other.cmdtable)
for section, items in pycompat.iteritems(other.configtable):
if section in self.configtable:
self.configtable[section].update(items)
else:
self.configtable[section] = items
def finaluisetup(self, ui):
"""Method to be used as the extension uisetup
The following operations belong here:
- Changes to ui.__class__ . The ui object that will be used to run the
command has not yet been created. Changes made here will affect ui
objects created after this, and in particular the ui that will be
passed to runcommand
- Command wraps (extensions.wrapcommand)
- Changes that need to be visible to other extensions: because
initialization occurs in phases (all extensions run uisetup, then all
run extsetup), a change made here will be visible to other extensions
during extsetup
- Monkeypatch or wrap function (extensions.wrapfunction) of dispatch
module members
- Setup of pre-* and post-* hooks
- pushkey setup
"""
for command, wrapper, opts in self._commandwrappers:
entry = extensions.wrapcommand(commands.table, command, wrapper)
if opts:
for opt in opts:
entry[1].append(opt)
for cont, funcname, wrapper in self._functionwrappers:
extensions.wrapfunction(cont, funcname, wrapper)
for c in self._uicallables:
with tracing.log('finaluisetup: %s', repr(c)):
c(ui)
def finaluipopulate(self, ui):
"""Method to be used as the extension uipopulate
This is called once per ui instance to:
- Set up additional ui members
- Update configuration by ``ui.setconfig()``
- Extend the class dynamically
"""
for c in self._uipopulatecallables:
c(ui)
def finalextsetup(self, ui):
"""Method to be used as a the extension extsetup
The following operations belong here:
- Changes depending on the status of other extensions. (if
extensions.find('mq'))
- Add a global option to all commands
"""
knownexts = {}
for ext, command, wrapper, opts in self._extcommandwrappers:
if ext not in knownexts:
try:
e = extensions.find(ext)
except KeyError:
# Extension isn't enabled, so don't bother trying to wrap
# it.
continue
knownexts[ext] = e.cmdtable
entry = extensions.wrapcommand(knownexts[ext], command, wrapper)
if opts:
for opt in opts:
entry[1].append(opt)
for c in self._extcallables:
with tracing.log('finalextsetup: %s', repr(c)):
c(ui)
def finalreposetup(self, ui, repo):
"""Method to be used as the extension reposetup
The following operations belong here:
- All hooks but pre-* and post-*
- Modify configuration variables
- Changes to repo.__class__, repo.dirstate.__class__
"""
for c in self._repocallables:
with tracing.log('finalreposetup: %s', repr(c)):
c(ui, repo)
def uisetup(self, call):
"""Decorated function will be executed during uisetup
example::
@eh.uisetup
def setupbabar(ui):
print 'this is uisetup!'
"""
self._uicallables.append(call)
return call
def uipopulate(self, call):
"""Decorated function will be executed during uipopulate
example::
@eh.uipopulate
def setupfoo(ui):
print 'this is uipopulate!'
"""
self._uipopulatecallables.append(call)
return call
def extsetup(self, call):
"""Decorated function will be executed during extsetup
example::
@eh.extsetup
def setupcelestine(ui):
print 'this is extsetup!'
"""
self._extcallables.append(call)
return call
def reposetup(self, call):
"""Decorated function will be executed during reposetup
example::
@eh.reposetup
def setupzephir(ui, repo):
print 'this is reposetup!'
"""
self._repocallables.append(call)
return call
def wrapcommand(self, command, extension=None, opts=None):
"""Decorated function is a command wrapper
The name of the command must be given as the decorator argument.
The wrapping is installed during `uisetup`.
If the second option `extension` argument is provided, the wrapping
will be applied in the extension commandtable. This argument must be a
string that will be searched using `extension.find` if not found and
Abort error is raised. If the wrapping applies to an extension, it is
installed during `extsetup`.
example::
@eh.wrapcommand('summary')
def wrapsummary(orig, ui, repo, *args, **kwargs):
ui.note('Barry!')
return orig(ui, repo, *args, **kwargs)
The `opts` argument allows specifying a list of tuples for additional
arguments for the command. See ``mercurial.fancyopts.fancyopts()`` for
the format of the tuple.
"""
if opts is None:
opts = []
else:
for opt in opts:
if not isinstance(opt, tuple):
raise error.ProgrammingError(b'opts must be list of tuples')
if len(opt) not in (4, 5):
msg = b'each opt tuple must contain 4 or 5 values'
raise error.ProgrammingError(msg)
def dec(wrapper):
if extension is None:
self._commandwrappers.append((command, wrapper, opts))
else:
self._extcommandwrappers.append(
(extension, command, wrapper, opts)
)
return wrapper
return dec
def wrapfunction(self, container, funcname):
"""Decorated function is a function wrapper
This function takes two arguments, the container and the name of the
function to wrap. The wrapping is performed during `uisetup`.
(there is no extension support)
example::
@eh.function(discovery, 'checkheads')
def wrapfunction(orig, *args, **kwargs):
ui.note('His head smashed in and his heart cut out')
return orig(*args, **kwargs)
"""
def dec(wrapper):
self._functionwrappers.append((container, funcname, wrapper))
return wrapper
return dec