Mercurial > hg
view mercurial/destutil.py @ 28113:d2e0d57824c2
verify: include "manifest" prefix in a few more places
We include the "manifest" prefix on most other errors, so it seems
consistent to add them to the remaining messages too. Also, having the
"manifest" prefix will be more consistent with having the directory
prefix there when we add support for treemanifests. With the
"manifest" at the beginning, let's remove the now-redundant
"manifest" in the message itself.
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Tue, 02 Feb 2016 10:42:28 -0800 |
parents | 1fc7b5363871 |
children | b54c0246295b |
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# destutil.py - Mercurial utility function for command destination # # Copyright Matt Mackall <mpm@selenic.com> and other # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from __future__ import absolute_import from .i18n import _ from . import ( bookmarks, error, obsolete, ) def _destupdatevalidate(repo, rev, clean, check): """validate that the destination comply to various rules This exists as its own function to help wrapping from extensions.""" wc = repo[None] p1 = wc.p1() if not clean: # Check that the update is linear. # # Mercurial do not allow update-merge for non linear pattern # (that would be technically possible but was considered too confusing # for user a long time ago) # # See mercurial.merge.update for details if p1.rev() not in repo.changelog.ancestors([rev], inclusive=True): dirty = wc.dirty(missing=True) foreground = obsolete.foreground(repo, [p1.node()]) if not repo[rev].node() in foreground: if dirty: msg = _("uncommitted changes") hint = _("commit and merge, or update --clean to" " discard changes") raise error.UpdateAbort(msg, hint=hint) elif not check: # destination is not a descendant. msg = _("not a linear update") hint = _("merge or update --check to force update") raise error.UpdateAbort(msg, hint=hint) def _destupdateobs(repo, clean, check): """decide of an update destination from obsolescence markers""" node = None wc = repo[None] p1 = wc.p1() movemark = None if p1.obsolete() and not p1.children(): # allow updating to successors successors = obsolete.successorssets(repo, p1.node()) # behavior of certain cases is as follows, # # divergent changesets: update to highest rev, similar to what # is currently done when there are more than one head # (i.e. 'tip') # # replaced changesets: same as divergent except we know there # is no conflict # # pruned changeset: no update is done; though, we could # consider updating to the first non-obsolete parent, # similar to what is current done for 'hg prune' if successors: # flatten the list here handles both divergent (len > 1) # and the usual case (len = 1) successors = [n for sub in successors for n in sub] # get the max revision for the given successors set, # i.e. the 'tip' of a set node = repo.revs('max(%ln)', successors).first() if bookmarks.isactivewdirparent(repo): movemark = repo['.'].node() return node, movemark, None def _destupdatebook(repo, clean, check): """decide on an update destination from active bookmark""" # we also move the active bookmark, if any activemark = None node, movemark = bookmarks.calculateupdate(repo.ui, repo, None) if node is not None: activemark = node return node, movemark, activemark def _destupdatebranch(repo, clean, check): """decide on an update destination from current branch""" wc = repo[None] movemark = node = None try: node = repo.revs('max(.::(head() and branch(%s)))' , wc.branch()).first() if bookmarks.isactivewdirparent(repo): movemark = repo['.'].node() except error.RepoLookupError: if wc.branch() == 'default': # no default branch! node = repo.lookup('tip') # update to tip else: raise error.Abort(_("branch %s not found") % wc.branch()) return node, movemark, None # order in which each step should be evalutated # steps are run until one finds a destination destupdatesteps = ['evolution', 'bookmark', 'branch'] # mapping to ease extension overriding steps. destupdatestepmap = {'evolution': _destupdateobs, 'bookmark': _destupdatebook, 'branch': _destupdatebranch, } def destupdate(repo, clean=False, check=False): """destination for bare update operation return (rev, movemark, activemark) - rev: the revision to update to, - movemark: node to move the active bookmark from (cf bookmark.calculate update), - activemark: a bookmark to activate at the end of the update. """ node = movemark = activemark = None for step in destupdatesteps: node, movemark, activemark = destupdatestepmap[step](repo, clean, check) if node is not None: break rev = repo[node].rev() _destupdatevalidate(repo, rev, clean, check) return rev, movemark, activemark msgdestmerge = { # too many matching divergent bookmark 'toomanybookmarks': (_("multiple matching bookmarks to merge -" " please merge with an explicit rev or bookmark"), _("run 'hg heads' to see all heads")), # no other matching divergent bookmark 'nootherbookmarks': (_("no matching bookmark to merge - " "please merge with an explicit rev or bookmark"), _("run 'hg heads' to see all heads")), # branch have too many unbookmarked heads, no obvious destination 'toomanyheads': (_("branch '%s' has %d heads - please merge with an explicit rev"), _("run 'hg heads .' to see heads")), # branch have no other unbookmarked heads 'bookmarkedheads': (_("heads are bookmarked - please merge with an explicit rev"), _("run 'hg heads' to see all heads")), # branch have just a single heads, but there is other branches 'nootherbranchheads': (_("branch '%s' has one head - please merge with an explicit rev"), _("run 'hg heads' to see all heads")), # repository have a single head 'nootherheads': (_('nothing to merge'), None), # repository have a single head and we are not on it 'nootherheadsbehind': (_('nothing to merge'), _("use 'hg update' instead")), # We are not on a head 'notatheads': (_('working directory not at a head revision'), _("use 'hg update' or merge with an explicit revision")) } def _destmergebook(repo): """find merge destination in the active bookmark case""" node = None bmheads = repo.bookmarkheads(repo._activebookmark) curhead = repo[repo._activebookmark].node() if len(bmheads) == 2: if curhead == bmheads[0]: node = bmheads[1] else: node = bmheads[0] elif len(bmheads) > 2: msg, hint = msgdestmerge['toomanybookmarks'] raise error.Abort(msg, hint=hint) elif len(bmheads) <= 1: msg, hint = msgdestmerge['nootherbookmarks'] raise error.Abort(msg, hint=hint) assert node is not None return node def _destmergebranch(repo): """find merge destination based on branch heads""" node = None parent = repo.dirstate.p1() branch = repo.dirstate.branch() bheads = repo.branchheads(branch) nbhs = [bh for bh in bheads if not repo[bh].bookmarks()] if parent not in bheads: # Case A: working copy if not on a head. # # This is probably a user mistake We bailout pointing at 'hg update' if len(repo.heads()) <= 1: msg, hint = msgdestmerge['nootherheadsbehind'] else: msg, hint = msgdestmerge['notatheads'] raise error.Abort(msg, hint=hint) elif len(nbhs) > 2: # Case B: There is more than 2 anonymous heads # # This means that there will be more than 1 candidate. This is # ambiguous. We abort asking the user to pick as explicit destination # instead. msg, hint = msgdestmerge['toomanyheads'] msg %= (branch, len(bheads)) raise error.Abort(msg, hint=hint) elif len(nbhs) <= 1: # Case B: There is no other anonymous head that the one we are one # # This means that there is no natural candidate to merge with. # We abort, with various messages for various cases. if len(bheads) > 1: msg, hint = msgdestmerge['bookmarkedheads'] elif len(repo.heads()) > 1: msg, hint = msgdestmerge['nootherbranchheads'] msg %= branch else: msg, hint = msgdestmerge['nootherheads'] raise error.Abort(msg, hint=hint) elif parent == nbhs[0]: node = nbhs[-1] else: node = nbhs[0] assert node is not None return node def destmerge(repo): if repo._activebookmark: node = _destmergebook(repo) else: node = _destmergebranch(repo) return repo[node].rev() histeditdefaultrevset = 'reverse(only(.) and not public() and not ::merge())' def desthistedit(ui, repo): """Default base revision to edit for `hg histedit`.""" # Avoid cycle: scmutil -> revset -> destutil from . import scmutil default = ui.config('histedit', 'defaultrev', histeditdefaultrevset) if default: revs = scmutil.revrange(repo, [default]) if revs: # The revset supplied by the user may not be in ascending order nor # take the first revision. So do this manually. revs.sort() return revs.first() return None def _statusotherbook(ui, repo): bmheads = repo.bookmarkheads(repo._activebookmark) curhead = repo[repo._activebookmark].node() if repo.revs('%n and parents()', curhead): # we are on the active bookmark bmheads = [b for b in bmheads if curhead != b] if bmheads: msg = _('%i other divergent bookmarks for "%s"\n') ui.status(msg % (len(bmheads), repo._activebookmark)) def _statusotherbranchheads(ui, repo): currentbranch = repo.dirstate.branch() heads = repo.branchheads(currentbranch) l = len(heads) if repo.revs('%ln and parents()', heads): # we are on a head heads = repo.revs('%ln - parents()', heads) if heads and l != len(heads): ui.status(_('%i other heads for branch "%s"\n') % (len(heads), currentbranch)) def statusotherdests(ui, repo): """Print message about other head""" # XXX we should probably include a hint: # - about what to do # - how to see such heads if repo._activebookmark: _statusotherbook(ui, repo) else: _statusotherbranchheads(ui, repo)