Mercurial > evolve

--- a/hgext3rd/evolve/hack/directaccess.py	Tue Oct 24 14:23:31 2017 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,207 +0,0 @@
-""" This extension provides direct access
-It is the ability to refer and access hidden sha in commands provided that you
-know their value.
-For example hg log -r xxx where xxx is a commit has should work whether xxx is
-hidden or not as we assume that the user knows what he is doing when referring
-to xxx.
-"""
-from mercurial import extensions
-from mercurial import repoview
-from mercurial import branchmap
-from mercurial import registrar
-from mercurial import revset
-from mercurial import error
-from mercurial import commands
-from mercurial import hg
-from mercurial import util
-from mercurial.i18n import _
-
-cmdtable = {}
-
-if util.safehasattr(registrar, 'command'):
-    command = registrar.command(cmdtable)
-else: # compat with hg < 4.3
-    from mercurial import cmdutil
-    command = cmdutil.command(cmdtable)
-
-if util.safehasattr(registrar, 'configitem'):
-    configtable = {}
-    configitem = registrar.configitem(configtable)
-
-    configitem('directaccess', 'loadsafter',
-               default=[],
-    )
-
-# By default, all the commands have directaccess with warnings
-# List of commands that have no directaccess and directaccess with no warning
-directaccesslevel = [
-    # Format:
-    # ('nowarning', 'evolve', 'prune'),
-    # means: no directaccess warning, for the command in evolve named prune
-    #
-    # ('error', None, 'serve'),
-    # means: no directaccess for the command in core named serve
-    #
-    # The list is ordered alphabetically by command names, starting with all
-    # the commands in core then all the commands in the extensions
-    #
-    # The general guideline is:
-    # - remove directaccess warnings for read only commands
-    # - no direct access for commands with consequences outside of the repo
-    # - leave directaccess warnings for all the other commands
-    #
-    ('nowarning', None, 'annotate'),
-    ('nowarning', None, 'archive'),
-    ('nowarning', None, 'bisect'),
-    ('nowarning', None, 'bookmarks'),
-    ('nowarning', None, 'bundle'),
-    ('nowarning', None, 'cat'),
-    ('nowarning', None, 'diff'),
-    ('nowarning', None, 'export'),
-    ('nowarning', None, 'identify'),
-    ('nowarning', None, 'incoming'),
-    ('nowarning', None, 'log'),
-    ('nowarning', None, 'manifest'),
-    ('error', None, 'outgoing'), # confusing if push errors and not outgoing
-    ('error', None, 'push'), # destructive
-    ('nowarning', None, 'revert'),
-    ('error', None, 'serve'),
-    ('nowarning', None, 'tags'),
-    ('nowarning', None, 'unbundle'),
-    ('nowarning', None, 'update'),
-]
-
-def reposetup(ui, repo):
-    repo._explicitaccess = set()
-
-def _computehidden(repo):
-    hidden = repoview.filterrevs(repo, 'visible')
-    cl = repo.changelog
-    dynamic = hidden & repo._explicitaccess
-    if dynamic:
-        blocked = cl.ancestors(dynamic, inclusive=True)
-        hidden = frozenset(r for r in hidden if r not in blocked)
-    return hidden
-
-def setupdirectaccess():
-    """ Add two new filtername that behave like visible to provide direct access
-    and direct access with warning. Wraps the commands to setup direct access
-    """
-    repoview.filtertable.update({'visible-directaccess-nowarn': _computehidden})
-    repoview.filtertable.update({'visible-directaccess-warn': _computehidden})
-    branchmap.subsettable['visible-directaccess-nowarn'] = 'visible'
-    branchmap.subsettable['visible-directaccess-warn'] = 'visible'
-
-    for warn, ext, cmd in directaccesslevel:
-        try:
-            cmdtable = extensions.find(ext).cmdtable if ext else commands.table
-            wrapper = wrapwitherror if warn == 'error' else wrapwithoutwarning
-            extensions.wrapcommand(cmdtable, cmd, wrapper)
-        except (error.UnknownCommand, KeyError):
-            pass
-
-def wrapwitherror(orig, ui, repo, *args, **kwargs):
-    if repo and repo.filtername == 'visible-directaccess-warn':
-        repo = repo.filtered('visible')
-    return orig(ui, repo, *args, **kwargs)
-
-def wrapwithoutwarning(orig, ui, repo, *args, **kwargs):
-    if repo and repo.filtername == 'visible-directaccess-warn':
-        repo = repo.filtered("visible-directaccess-nowarn")
-    return orig(ui, repo, *args, **kwargs)
-
-def uisetup(ui):
-    """ Change ordering of extensions to ensure that directaccess extsetup comes
-    after the one of the extensions in the loadsafter list """
-    loadsafter = ui.configlist('directaccess', 'loadsafter')
-    order = list(extensions._order)
-    directaccesidx = order.index('directaccess')
-
-    # The min idx for directaccess to load after all the extensions in loadafter
-    minidxdirectaccess = directaccesidx
-
-    for ext in loadsafter:
-        try:
-            minidxdirectaccess = max(minidxdirectaccess, order.index(ext))
-        except ValueError:
-            pass # extension not loaded
-
-    if minidxdirectaccess > directaccesidx:
-        order.insert(minidxdirectaccess + 1, 'directaccess')
-        order.remove('directaccess')
-        extensions._order = order
-
-def _repository(orig, *args, **kwargs):
-    """Make visible-directaccess-warn the default filter for new repos"""
-    repo = orig(*args, **kwargs)
-    return repo.filtered("visible-directaccess-warn")
-
-def extsetup(ui):
-    extensions.wrapfunction(revset, 'posttreebuilthook', _posttreebuilthook)
-    extensions.wrapfunction(hg, 'repository', _repository)
-    setupdirectaccess()
-
-hashre = util.re.compile('[0-9a-fA-F]{1,40}')
-
-_listtuple = ('symbol', '_list')
-
-def _ishashsymbol(symbol, maxrev):
-    # Returns true if symbol looks like a hash
-    try:
-        n = int(symbol)
-        if n <= maxrev:
-            # It's a rev number
-            return False
-    except ValueError:
-        pass
-    return hashre.match(symbol)
-
-def gethashsymbols(tree, maxrev):
-    # Returns the list of symbols of the tree that look like hashes
-    # for example for the revset 3::abe3ff it will return ('abe3ff')
-    if not tree:
-        return []
-
-    results = []
-    if len(tree) in (2, 3) and tree[0] == "symbol":
-        results.append(tree[1])
-    elif tree[0] == "func" and tree[1] == _listtuple:
-        # the optimiser will group sequence of hash request
-        results += tree[2][1].split('\0')
-    elif len(tree) >= 2:
-        for subtree in tree[1:]:
-            results += gethashsymbols(subtree, maxrev)
-        # return directly, we don't need to filter symbols again
-        return results
-    return [s for s in results if _ishashsymbol(s, maxrev)]
-
-def _posttreebuilthook(orig, tree, repo):
-    # This is use to enabled direct hash access
-    # We extract the symbols that look like hashes and add them to the
-    # explicitaccess set
-    orig(tree, repo)
-    filternm = ""
-    if repo is not None:
-        filternm = repo.filtername
-    if filternm is not None and filternm.startswith('visible-directaccess'):
-        prelength = len(repo._explicitaccess)
-        accessbefore = set(repo._explicitaccess)
-        cl = repo.unfiltered().changelog
-        repo.symbols = gethashsymbols(tree, len(cl))
-        for node in repo.symbols:
-            try:
-                node = cl._partialmatch(node)
-            except error.LookupError:
-                node = None
-            if node is not None:
-                rev = cl.rev(node)
-                if rev not in repo.changelog:
-                    repo._explicitaccess.add(rev)
-        if prelength != len(repo._explicitaccess):
-            if repo.filtername != 'visible-directaccess-nowarn':
-                unhiddencommits = repo._explicitaccess - accessbefore
-                repo.ui.warn(_("Warning: accessing hidden changesets %s "
-                               "for write operation\n") %
-                             (",".join([str(repo.unfiltered()[l])
-                              for l in unhiddencommits])))
-            repo.invalidatevolatilesets()