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f7228afd10
Summary: The "sensitive config sections" was used because "hg serve" loading different extensions are incompatible with each other. Now we neither load extensions nor run their uisetups, and just use one chg server. So sensitive config sections can be removed. Reviewed By: singhsrb Differential Revision: D7847149 fbshipit-source-id: 758c1df21d280bf0f88d91432e1201c8417df532
89 lines
2.6 KiB
Python
89 lines
2.6 KiB
Python
# extorder.py - dependencies for extensions
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#
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# Copyright 2015 Facebook, Inc.
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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"""
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loading order for extensions.
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In the extorder section of your hgrc you can define order of extension loading.
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For example:
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[extorder]
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extension1 = extension3, extension4
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extension2 = extension1
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This will cause the extension1 to be loaded after 3 and 4. Also extension2 will
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be loaded after extension1.
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Also there are two special configs in this section: 'preferlast' and
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'preferfirst'. Those are lists of extensions which prefer to be loaded first or
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last. But these are not guaranteed -- normal dependencies have higher priority.
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Please not that this extension modifies only order of loading extensions. It
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will not load them for you
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"""
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from mercurial import (
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extensions,
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registrar,
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)
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testedwith = 'ships-with-fb-hgext'
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configtable = {}
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configitem = registrar.configitem(configtable)
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class MercurialExtOrderException(BaseException):
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'''Special exception to bypass upstream exception catching
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Upstream mercurial catches all Exception from uisetup or extsetup - see
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ea1c2eb7abd341c84422f489af75bccb02622671. We need to throw something that is
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subclass of BaseException to actually abort the program if extension order
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is incorrect. That's why this class exists.
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'''
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pass
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def uisetup(ui):
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deps = {}
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preferlast = []
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preferfirst = []
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# The configs being read here are user defined, so we need to suppress
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# warnings telling us to register them.
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with ui.configoverride({("devel", "all-warnings"): False}):
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for item, _v in ui.configitems('extorder'):
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val = ui.configlist('extorder', item)
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if item == 'preferlast':
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preferlast.extend(val)
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elif item == 'preferfirst':
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preferfirst.extend(val)
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else:
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deps[item] = val
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exts = list(extensions._order)
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for e in preferfirst + preferlast:
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exts.remove(e)
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unvisited = preferfirst + exts + preferlast
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temp = set()
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order = list()
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def visit(n):
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if n in temp:
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raise MercurialExtOrderException(
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"extorder: conflicting extension order")
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elif n in unvisited:
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temp.add(n)
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for m in deps.get(n, []):
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visit(m)
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unvisited.remove(n)
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temp.remove(n)
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order.append(n)
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while len(unvisited) > 0:
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visit(unvisited[0])
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extensions._order = order
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