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# filemerge.py - file-level merge handling for Mercurial
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#
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# Copyright 2006, 2007, 2008 Matt Mackall <mpm@selenic.com>
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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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from __future__ import absolute_import
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import contextlib
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import os
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import re
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import shutil
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import tempfile
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from .i18n import _
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from .node import nullid, short
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from . import (
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encoding,
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error,
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formatter,
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match,
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pycompat,
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registrar,
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scmutil,
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simplemerge,
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tagmerge,
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templatekw,
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templater,
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util,
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)
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from .utils import (
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procutil,
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stringutil,
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)
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def _toolstr(ui, tool, part, *args):
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return ui.config("merge-tools", tool + "." + part, *args)
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def _toolbool(ui, tool, part,*args):
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return ui.configbool("merge-tools", tool + "." + part, *args)
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def _toollist(ui, tool, part):
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return ui.configlist("merge-tools", tool + "." + part)
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internals = {}
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# Merge tools to document.
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internalsdoc = {}
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internaltool = registrar.internalmerge()
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# internal tool merge types
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nomerge = internaltool.nomerge
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mergeonly = internaltool.mergeonly # just the full merge, no premerge
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fullmerge = internaltool.fullmerge # both premerge and merge
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_localchangedotherdeletedmsg = _(
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"local%(l)s changed %(fd)s which other%(o)s deleted\n"
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"use (c)hanged version, (d)elete, or leave (u)nresolved?"
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"$$ &Changed $$ &Delete $$ &Unresolved")
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_otherchangedlocaldeletedmsg = _(
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"other%(o)s changed %(fd)s which local%(l)s deleted\n"
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"use (c)hanged version, leave (d)eleted, or "
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"leave (u)nresolved?"
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"$$ &Changed $$ &Deleted $$ &Unresolved")
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class absentfilectx(object):
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"""Represents a file that's ostensibly in a context but is actually not
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present in it.
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This is here because it's very specific to the filemerge code for now --
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other code is likely going to break with the values this returns."""
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def __init__(self, ctx, f):
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self._ctx = ctx
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self._f = f
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def path(self):
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return self._f
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def size(self):
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return None
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def data(self):
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return None
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def filenode(self):
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return nullid
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_customcmp = True
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def cmp(self, fctx):
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"""compare with other file context
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returns True if different from fctx.
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"""
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return not (fctx.isabsent() and
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fctx.ctx() == self.ctx() and
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fctx.path() == self.path())
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def flags(self):
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return ''
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def changectx(self):
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return self._ctx
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def isbinary(self):
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return False
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def isabsent(self):
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return True
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def _findtool(ui, tool):
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if tool in internals:
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return tool
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return findexternaltool(ui, tool)
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def findexternaltool(ui, tool):
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for kn in ("regkey", "regkeyalt"):
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k = _toolstr(ui, tool, kn)
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if not k:
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continue
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p = util.lookupreg(k, _toolstr(ui, tool, "regname"))
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if p:
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p = procutil.findexe(p + _toolstr(ui, tool, "regappend", ""))
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if p:
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return p
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exe = _toolstr(ui, tool, "executable", tool)
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return procutil.findexe(util.expandpath(exe))
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def _picktool(repo, ui, path, binary, symlink, changedelete):
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def supportscd(tool):
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return tool in internals and internals[tool].mergetype == nomerge
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def check(tool, pat, symlink, binary, changedelete):
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tmsg = tool
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if pat:
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tmsg = _("%s (for pattern %s)") % (tool, pat)
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if not _findtool(ui, tool):
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if pat: # explicitly requested tool deserves a warning
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ui.warn(_("couldn't find merge tool %s\n") % tmsg)
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else: # configured but non-existing tools are more silent
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ui.note(_("couldn't find merge tool %s\n") % tmsg)
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elif symlink and not _toolbool(ui, tool, "symlink"):
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ui.warn(_("tool %s can't handle symlinks\n") % tmsg)
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elif binary and not _toolbool(ui, tool, "binary"):
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ui.warn(_("tool %s can't handle binary\n") % tmsg)
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elif changedelete and not supportscd(tool):
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# the nomerge tools are the only tools that support change/delete
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# conflicts
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pass
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elif not procutil.gui() and _toolbool(ui, tool, "gui"):
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ui.warn(_("tool %s requires a GUI\n") % tmsg)
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else:
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return True
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return False
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# internal config: ui.forcemerge
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# forcemerge comes from command line arguments, highest priority
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force = ui.config('ui', 'forcemerge')
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if force:
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toolpath = _findtool(ui, force)
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if changedelete and not supportscd(toolpath):
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return ":prompt", None
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else:
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if toolpath:
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return (force, procutil.shellquote(toolpath))
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else:
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# mimic HGMERGE if given tool not found
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return (force, force)
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# HGMERGE takes next precedence
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hgmerge = encoding.environ.get("HGMERGE")
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if hgmerge:
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if changedelete and not supportscd(hgmerge):
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return ":prompt", None
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else:
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return (hgmerge, hgmerge)
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# then patterns
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for pat, tool in ui.configitems("merge-patterns"):
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mf = match.match(repo.root, '', [pat])
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if mf(path) and check(tool, pat, symlink, False, changedelete):
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toolpath = _findtool(ui, tool)
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return (tool, procutil.shellquote(toolpath))
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# then merge tools
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tools = {}
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disabled = set()
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for k, v in ui.configitems("merge-tools"):
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t = k.split('.')[0]
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if t not in tools:
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tools[t] = int(_toolstr(ui, t, "priority"))
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if _toolbool(ui, t, "disabled"):
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disabled.add(t)
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names = tools.keys()
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tools = sorted([(-p, tool) for tool, p in tools.items()
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if tool not in disabled])
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uimerge = ui.config("ui", "merge")
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if uimerge:
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# external tools defined in uimerge won't be able to handle
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# change/delete conflicts
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if uimerge not in names and not changedelete:
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return (uimerge, uimerge)
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tools.insert(0, (None, uimerge)) # highest priority
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tools.append((None, "hgmerge")) # the old default, if found
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for p, t in tools:
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if check(t, None, symlink, binary, changedelete):
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toolpath = _findtool(ui, t)
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return (t, procutil.shellquote(toolpath))
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# internal merge or prompt as last resort
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if symlink or binary or changedelete:
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if not changedelete and len(tools):
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# any tool is rejected by capability for symlink or binary
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ui.warn(_("no tool found to merge %s\n") % path)
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return ":prompt", None
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return ":merge", None
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def _eoltype(data):
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"Guess the EOL type of a file"
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if '\0' in data: # binary
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return None
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if '\r\n' in data: # Windows
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return '\r\n'
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if '\r' in data: # Old Mac
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return '\r'
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if '\n' in data: # UNIX
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return '\n'
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return None # unknown
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def _matcheol(file, back):
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"Convert EOL markers in a file to match origfile"
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tostyle = _eoltype(back.data()) # No repo.wread filters?
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if tostyle:
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data = util.readfile(file)
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style = _eoltype(data)
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if style:
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newdata = data.replace(style, tostyle)
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if newdata != data:
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util.writefile(file, newdata)
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@internaltool('prompt', nomerge)
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def _iprompt(repo, mynode, orig, fcd, fco, fca, toolconf, labels=None):
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"""Asks the user which of the local `p1()` or the other `p2()` version to
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keep as the merged version."""
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ui = repo.ui
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fd = fcd.path()
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# Avoid prompting during an in-memory merge since it doesn't support merge
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# conflicts.
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if fcd.changectx().isinmemory():
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raise error.InMemoryMergeConflictsError('in-memory merge does not '
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'support file conflicts')
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prompts = partextras(labels)
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prompts['fd'] = fd
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try:
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if fco.isabsent():
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index = ui.promptchoice(
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_localchangedotherdeletedmsg % prompts, 2)
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choice = ['local', 'other', 'unresolved'][index]
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elif fcd.isabsent():
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index = ui.promptchoice(
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_otherchangedlocaldeletedmsg % prompts, 2)
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choice = ['other', 'local', 'unresolved'][index]
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else:
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index = ui.promptchoice(
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_("keep (l)ocal%(l)s, take (o)ther%(o)s, or leave (u)nresolved"
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" for %(fd)s?"
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"$$ &Local $$ &Other $$ &Unresolved") % prompts, 2)
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choice = ['local', 'other', 'unresolved'][index]
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if choice == 'other':
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return _iother(repo, mynode, orig, fcd, fco, fca, toolconf,
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labels)
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elif choice == 'local':
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return _ilocal(repo, mynode, orig, fcd, fco, fca, toolconf,
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labels)
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elif choice == 'unresolved':
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return _ifail(repo, mynode, orig, fcd, fco, fca, toolconf,
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labels)
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except error.ResponseExpected:
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ui.write("\n")
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return _ifail(repo, mynode, orig, fcd, fco, fca, toolconf,
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labels)
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@internaltool('local', nomerge)
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def _ilocal(repo, mynode, orig, fcd, fco, fca, toolconf, labels=None):
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"""Uses the local `p1()` version of files as the merged version."""
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return 0, fcd.isabsent()
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@internaltool('other', nomerge)
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def _iother(repo, mynode, orig, fcd, fco, fca, toolconf, labels=None):
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"""Uses the other `p2()` version of files as the merged version."""
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if fco.isabsent():
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# local changed, remote deleted -- 'deleted' picked
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_underlyingfctxifabsent(fcd).remove()
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deleted = True
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else:
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_underlyingfctxifabsent(fcd).write(fco.data(), fco.flags())
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deleted = False
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return 0, deleted
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@internaltool('fail', nomerge)
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def _ifail(repo, mynode, orig, fcd, fco, fca, toolconf, labels=None):
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"""
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Rather than attempting to merge files that were modified on both
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branches, it marks them as unresolved. The resolve command must be
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used to resolve these conflicts."""
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# for change/delete conflicts write out the changed version, then fail
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if fcd.isabsent():
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_underlyingfctxifabsent(fcd).write(fco.data(), fco.flags())
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return 1, False
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def _underlyingfctxifabsent(filectx):
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"""Sometimes when resolving, our fcd is actually an absentfilectx, but
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we want to write to it (to do the resolve). This helper returns the
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underyling workingfilectx in that case.
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"""
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if filectx.isabsent():
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return filectx.changectx()[filectx.path()]
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else:
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return filectx
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def _premerge(repo, fcd, fco, fca, toolconf, files, labels=None):
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tool, toolpath, binary, symlink = toolconf
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if symlink or fcd.isabsent() or fco.isabsent():
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return 1
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unused, unused, unused, back = files
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ui = repo.ui
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validkeep = ['keep', 'keep-merge3']
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# do we attempt to simplemerge first?
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try:
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premerge = _toolbool(ui, tool, "premerge", not binary)
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except error.ConfigError:
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premerge = _toolstr(ui, tool, "premerge", "").lower()
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if premerge not in validkeep:
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_valid = ', '.join(["'" + v + "'" for v in validkeep])
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raise error.ConfigError(_("%s.premerge not valid "
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"('%s' is neither boolean nor %s)") %
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(tool, premerge, _valid))
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if premerge:
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if premerge == 'keep-merge3':
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if not labels:
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labels = _defaultconflictlabels
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if len(labels) < 3:
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labels.append('base')
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r = simplemerge.simplemerge(ui, fcd, fca, fco, quiet=True, label=labels)
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if not r:
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ui.debug(" premerge successful\n")
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return 0
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if premerge not in validkeep:
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# restore from backup and try again
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_restorebackup(fcd, back)
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return 1 # continue merging
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def _mergecheck(repo, mynode, orig, fcd, fco, fca, toolconf):
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tool, toolpath, binary, symlink = toolconf
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if symlink:
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repo.ui.warn(_('warning: internal %s cannot merge symlinks '
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'for %s\n') % (tool, fcd.path()))
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return False
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if fcd.isabsent() or fco.isabsent():
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repo.ui.warn(_('warning: internal %s cannot merge change/delete '
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'conflict for %s\n') % (tool, fcd.path()))
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return False
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return True
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def _merge(repo, mynode, orig, fcd, fco, fca, toolconf, files, labels, mode):
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"""
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Uses the internal non-interactive simple merge algorithm for merging
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files. It will fail if there are any conflicts and leave markers in
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the partially merged file. Markers will have two sections, one for each side
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of merge, unless mode equals 'union' which suppresses the markers."""
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ui = repo.ui
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r = simplemerge.simplemerge(ui, fcd, fca, fco, label=labels, mode=mode)
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return True, r, False
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@internaltool('union', fullmerge,
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_("warning: conflicts while merging %s! "
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"(edit, then use 'hg resolve --mark')\n"),
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precheck=_mergecheck)
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def _iunion(repo, mynode, orig, fcd, fco, fca, toolconf, files, labels=None):
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"""
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Uses the internal non-interactive simple merge algorithm for merging
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files. It will use both left and right sides for conflict regions.
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No markers are inserted."""
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return _merge(repo, mynode, orig, fcd, fco, fca, toolconf,
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files, labels, 'union')
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@internaltool('merge', fullmerge,
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_("warning: conflicts while merging %s! "
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"(edit, then use 'hg resolve --mark')\n"),
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precheck=_mergecheck)
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def _imerge(repo, mynode, orig, fcd, fco, fca, toolconf, files, labels=None):
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"""
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Uses the internal non-interactive simple merge algorithm for merging
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files. It will fail if there are any conflicts and leave markers in
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the partially merged file. Markers will have two sections, one for each side
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of merge."""
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return _merge(repo, mynode, orig, fcd, fco, fca, toolconf,
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files, labels, 'merge')
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@internaltool('merge3', fullmerge,
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_("warning: conflicts while merging %s! "
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"(edit, then use 'hg resolve --mark')\n"),
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precheck=_mergecheck)
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def _imerge3(repo, mynode, orig, fcd, fco, fca, toolconf, files, labels=None):
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"""
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Uses the internal non-interactive simple merge algorithm for merging
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files. It will fail if there are any conflicts and leave markers in
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the partially merged file. Marker will have three sections, one from each
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side of the merge and one for the base content."""
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|
if not labels:
|
|
|
labels = _defaultconflictlabels
|
|
|
if len(labels) < 3:
|
|
|
labels.append('base')
|
|
|
return _imerge(repo, mynode, orig, fcd, fco, fca, toolconf, files, labels)
|
|
|
|
|
|
def _imergeauto(repo, mynode, orig, fcd, fco, fca, toolconf, files,
|
|
|
labels=None, localorother=None):
|
|
|
"""
|
|
|
Generic driver for _imergelocal and _imergeother
|
|
|
"""
|
|
|
assert localorother is not None
|
|
|
tool, toolpath, binary, symlink = toolconf
|
|
|
r = simplemerge.simplemerge(repo.ui, fcd, fca, fco, label=labels,
|
|
|
localorother=localorother)
|
|
|
return True, r
|
|
|
|
|
|
@internaltool('merge-local', mergeonly, precheck=_mergecheck)
|
|
|
def _imergelocal(*args, **kwargs):
|
|
|
"""
|
|
|
Like :merge, but resolve all conflicts non-interactively in favor
|
|
|
of the local `p1()` changes."""
|
|
|
success, status = _imergeauto(localorother='local', *args, **kwargs)
|
|
|
return success, status, False
|
|
|
|
|
|
@internaltool('merge-other', mergeonly, precheck=_mergecheck)
|
|
|
def _imergeother(*args, **kwargs):
|
|
|
"""
|
|
|
Like :merge, but resolve all conflicts non-interactively in favor
|
|
|
of the other `p2()` changes."""
|
|
|
success, status = _imergeauto(localorother='other', *args, **kwargs)
|
|
|
return success, status, False
|
|
|
|
|
|
@internaltool('tagmerge', mergeonly,
|
|
|
_("automatic tag merging of %s failed! "
|
|
|
"(use 'hg resolve --tool :merge' or another merge "
|
|
|
"tool of your choice)\n"))
|
|
|
def _itagmerge(repo, mynode, orig, fcd, fco, fca, toolconf, files, labels=None):
|
|
|
"""
|
|
|
Uses the internal tag merge algorithm (experimental).
|
|
|
"""
|
|
|
success, status = tagmerge.merge(repo, fcd, fco, fca)
|
|
|
return success, status, False
|
|
|
|
|
|
@internaltool('dump', fullmerge)
|
|
|
def _idump(repo, mynode, orig, fcd, fco, fca, toolconf, files, labels=None):
|
|
|
"""
|
|
|
Creates three versions of the files to merge, containing the
|
|
|
contents of local, other and base. These files can then be used to
|
|
|
perform a merge manually. If the file to be merged is named
|
|
|
``a.txt``, these files will accordingly be named ``a.txt.local``,
|
|
|
``a.txt.other`` and ``a.txt.base`` and they will be placed in the
|
|
|
same directory as ``a.txt``.
|
|
|
|
|
|
This implies premerge. Therefore, files aren't dumped, if premerge
|
|
|
runs successfully. Use :forcedump to forcibly write files out.
|
|
|
"""
|
|
|
a = _workingpath(repo, fcd)
|
|
|
fd = fcd.path()
|
|
|
|
|
|
from . import context
|
|
|
if isinstance(fcd, context.overlayworkingfilectx):
|
|
|
raise error.InMemoryMergeConflictsError('in-memory merge does not '
|
|
|
'support the :dump tool.')
|
|
|
|
|
|
util.writefile(a + ".local", fcd.decodeddata())
|
|
|
repo.wwrite(fd + ".other", fco.data(), fco.flags())
|
|
|
repo.wwrite(fd + ".base", fca.data(), fca.flags())
|
|
|
return False, 1, False
|
|
|
|
|
|
@internaltool('forcedump', mergeonly)
|
|
|
def _forcedump(repo, mynode, orig, fcd, fco, fca, toolconf, files,
|
|
|
labels=None):
|
|
|
"""
|
|
|
Creates three versions of the files as same as :dump, but omits premerge.
|
|
|
"""
|
|
|
return _idump(repo, mynode, orig, fcd, fco, fca, toolconf, files,
|
|
|
labels=labels)
|
|
|
|
|
|
def _xmergeimm(repo, mynode, orig, fcd, fco, fca, toolconf, files, labels=None):
|
|
|
# In-memory merge simply raises an exception on all external merge tools,
|
|
|
# for now.
|
|
|
#
|
|
|
# It would be possible to run most tools with temporary files, but this
|
|
|
# raises the question of what to do if the user only partially resolves the
|
|
|
# file -- we can't leave a merge state. (Copy to somewhere in the .hg/
|
|
|
# directory and tell the user how to get it is my best idea, but it's
|
|
|
# clunky.)
|
|
|
raise error.InMemoryMergeConflictsError('in-memory merge does not support '
|
|
|
'external merge tools')
|
|
|
|
|
|
def _xmerge(repo, mynode, orig, fcd, fco, fca, toolconf, files, labels=None):
|
|
|
tool, toolpath, binary, symlink = toolconf
|
|
|
if fcd.isabsent() or fco.isabsent():
|
|
|
repo.ui.warn(_('warning: %s cannot merge change/delete conflict '
|
|
|
'for %s\n') % (tool, fcd.path()))
|
|
|
return False, 1, None
|
|
|
unused, unused, unused, back = files
|
|
|
localpath = _workingpath(repo, fcd)
|
|
|
args = _toolstr(repo.ui, tool, "args")
|
|
|
|
|
|
with _maketempfiles(repo, fco, fca, repo.wvfs.join(back.path()),
|
|
|
"$output" in args) as temppaths:
|
|
|
basepath, otherpath, localoutputpath = temppaths
|
|
|
outpath = ""
|
|
|
mylabel, otherlabel = labels[:2]
|
|
|
if len(labels) >= 3:
|
|
|
baselabel = labels[2]
|
|
|
else:
|
|
|
baselabel = 'base'
|
|
|
env = {'HG_FILE': fcd.path(),
|
|
|
'HG_MY_NODE': short(mynode),
|
|
|
'HG_OTHER_NODE': short(fco.changectx().node()),
|
|
|
'HG_BASE_NODE': short(fca.changectx().node()),
|
|
|
'HG_MY_ISLINK': 'l' in fcd.flags(),
|
|
|
'HG_OTHER_ISLINK': 'l' in fco.flags(),
|
|
|
'HG_BASE_ISLINK': 'l' in fca.flags(),
|
|
|
'HG_MY_LABEL': mylabel,
|
|
|
'HG_OTHER_LABEL': otherlabel,
|
|
|
'HG_BASE_LABEL': baselabel,
|
|
|
}
|
|
|
ui = repo.ui
|
|
|
|
|
|
if "$output" in args:
|
|
|
# read input from backup, write to original
|
|
|
outpath = localpath
|
|
|
localpath = localoutputpath
|
|
|
replace = {'local': localpath, 'base': basepath, 'other': otherpath,
|
|
|
'output': outpath, 'labellocal': mylabel,
|
|
|
'labelother': otherlabel, 'labelbase': baselabel}
|
|
|
args = util.interpolate(
|
|
|
br'\$', replace, args,
|
|
|
lambda s: procutil.shellquote(util.localpath(s)))
|
|
|
cmd = toolpath + ' ' + args
|
|
|
if _toolbool(ui, tool, "gui"):
|
|
|
repo.ui.status(_('running merge tool %s for file %s\n') %
|
|
|
(tool, fcd.path()))
|
|
|
repo.ui.debug('launching merge tool: %s\n' % cmd)
|
|
|
r = ui.system(cmd, cwd=repo.root, environ=env, blockedtag='mergetool')
|
|
|
repo.ui.debug('merge tool returned: %d\n' % r)
|
|
|
return True, r, False
|
|
|
|
|
|
def _formatconflictmarker(ctx, template, label, pad):
|
|
|
"""Applies the given template to the ctx, prefixed by the label.
|
|
|
|
|
|
Pad is the minimum width of the label prefix, so that multiple markers
|
|
|
can have aligned templated parts.
|
|
|
"""
|
|
|
if ctx.node() is None:
|
|
|
ctx = ctx.p1()
|
|
|
|
|
|
props = {'ctx': ctx}
|
|
|
templateresult = template.renderdefault(props)
|
|
|
|
|
|
label = ('%s:' % label).ljust(pad + 1)
|
|
|
mark = '%s %s' % (label, templateresult)
|
|
|
|
|
|
if mark:
|
|
|
mark = mark.splitlines()[0] # split for safety
|
|
|
|
|
|
# 8 for the prefix of conflict marker lines (e.g. '<<<<<<< ')
|
|
|
return stringutil.ellipsis(mark, 80 - 8)
|
|
|
|
|
|
_defaultconflictlabels = ['local', 'other']
|
|
|
|
|
|
def _formatlabels(repo, fcd, fco, fca, labels, tool=None):
|
|
|
"""Formats the given labels using the conflict marker template.
|
|
|
|
|
|
Returns a list of formatted labels.
|
|
|
"""
|
|
|
cd = fcd.changectx()
|
|
|
co = fco.changectx()
|
|
|
ca = fca.changectx()
|
|
|
|
|
|
ui = repo.ui
|
|
|
template = ui.config('ui', 'mergemarkertemplate')
|
|
|
if tool is not None:
|
|
|
template = _toolstr(ui, tool, 'mergemarkertemplate', template)
|
|
|
template = templater.unquotestring(template)
|
|
|
tres = formatter.templateresources(ui, repo)
|
|
|
tmpl = formatter.maketemplater(ui, template, defaults=templatekw.keywords,
|
|
|
resources=tres)
|
|
|
|
|
|
pad = max(len(l) for l in labels)
|
|
|
|
|
|
newlabels = [_formatconflictmarker(cd, tmpl, labels[0], pad),
|
|
|
_formatconflictmarker(co, tmpl, labels[1], pad)]
|
|
|
if len(labels) > 2:
|
|
|
newlabels.append(_formatconflictmarker(ca, tmpl, labels[2], pad))
|
|
|
return newlabels
|
|
|
|
|
|
def partextras(labels):
|
|
|
"""Return a dictionary of extra labels for use in prompts to the user
|
|
|
|
|
|
Intended use is in strings of the form "(l)ocal%(l)s".
|
|
|
"""
|
|
|
if labels is None:
|
|
|
return {
|
|
|
"l": "",
|
|
|
"o": "",
|
|
|
}
|
|
|
|
|
|
return {
|
|
|
"l": " [%s]" % labels[0],
|
|
|
"o": " [%s]" % labels[1],
|
|
|
}
|
|
|
|
|
|
def _restorebackup(fcd, back):
|
|
|
# TODO: Add a workingfilectx.write(otherfilectx) path so we can use
|
|
|
# util.copy here instead.
|
|
|
fcd.write(back.data(), fcd.flags())
|
|
|
|
|
|
def _makebackup(repo, ui, wctx, fcd, premerge):
|
|
|
"""Makes and returns a filectx-like object for ``fcd``'s backup file.
|
|
|
|
|
|
In addition to preserving the user's pre-existing modifications to `fcd`
|
|
|
(if any), the backup is used to undo certain premerges, confirm whether a
|
|
|
merge changed anything, and determine what line endings the new file should
|
|
|
have.
|
|
|
|
|
|
Backups only need to be written once (right before the premerge) since their
|
|
|
content doesn't change afterwards.
|
|
|
"""
|
|
|
if fcd.isabsent():
|
|
|
return None
|
|
|
# TODO: Break this import cycle somehow. (filectx -> ctx -> fileset ->
|
|
|
# merge -> filemerge). (I suspect the fileset import is the weakest link)
|
|
|
from . import context
|
|
|
a = _workingpath(repo, fcd)
|
|
|
back = scmutil.origpath(ui, repo, a)
|
|
|
inworkingdir = (back.startswith(repo.wvfs.base) and not
|
|
|
back.startswith(repo.vfs.base))
|
|
|
if isinstance(fcd, context.overlayworkingfilectx) and inworkingdir:
|
|
|
# If the backup file is to be in the working directory, and we're
|
|
|
# merging in-memory, we must redirect the backup to the memory context
|
|
|
# so we don't disturb the working directory.
|
|
|
relpath = back[len(repo.wvfs.base) + 1:]
|
|
|
if premerge:
|
|
|
wctx[relpath].write(fcd.data(), fcd.flags())
|
|
|
return wctx[relpath]
|
|
|
else:
|
|
|
if premerge:
|
|
|
# Otherwise, write to wherever path the user specified the backups
|
|
|
# should go. We still need to switch based on whether the source is
|
|
|
# in-memory so we can use the fast path of ``util.copy`` if both are
|
|
|
# on disk.
|
|
|
if isinstance(fcd, context.overlayworkingfilectx):
|
|
|
util.writefile(back, fcd.data())
|
|
|
else:
|
|
|
util.copyfile(a, back)
|
|
|
# A arbitraryfilectx is returned, so we can run the same functions on
|
|
|
# the backup context regardless of where it lives.
|
|
|
return context.arbitraryfilectx(back, repo=repo)
|
|
|
|
|
|
@contextlib.contextmanager
|
|
|
def _maketempfiles(repo, fco, fca, localpath, uselocalpath):
|
|
|
"""Writes out `fco` and `fca` as temporary files, and (if uselocalpath)
|
|
|
copies `localpath` to another temporary file, so an external merge tool may
|
|
|
use them.
|
|
|
"""
|
|
|
tmproot = None
|
|
|
tmprootprefix = repo.ui.config('experimental', 'mergetempdirprefix')
|
|
|
if tmprootprefix:
|
|
|
tmproot = tempfile.mkdtemp(prefix=tmprootprefix)
|
|
|
|
|
|
def maketempfrompath(prefix, path):
|
|
|
fullbase, ext = os.path.splitext(path)
|
|
|
pre = "%s~%s" % (os.path.basename(fullbase), prefix)
|
|
|
if tmproot:
|
|
|
name = os.path.join(tmproot, pre)
|
|
|
if ext:
|
|
|
name += ext
|
|
|
f = open(name, r"wb")
|
|
|
else:
|
|
|
fd, name = tempfile.mkstemp(prefix=pre + '.', suffix=ext)
|
|
|
f = os.fdopen(fd, r"wb")
|
|
|
return f, name
|
|
|
|
|
|
def tempfromcontext(prefix, ctx):
|
|
|
f, name = maketempfrompath(prefix, ctx.path())
|
|
|
data = repo.wwritedata(ctx.path(), ctx.data())
|
|
|
f.write(data)
|
|
|
f.close()
|
|
|
return name
|
|
|
|
|
|
b = tempfromcontext("base", fca)
|
|
|
c = tempfromcontext("other", fco)
|
|
|
d = localpath
|
|
|
if uselocalpath:
|
|
|
# We start off with this being the backup filename, so remove the .orig
|
|
|
# to make syntax-highlighting more likely.
|
|
|
if d.endswith('.orig'):
|
|
|
d, _ = os.path.splitext(d)
|
|
|
f, d = maketempfrompath("local", d)
|
|
|
with open(localpath, 'rb') as src:
|
|
|
f.write(src.read())
|
|
|
f.close()
|
|
|
|
|
|
try:
|
|
|
yield b, c, d
|
|
|
finally:
|
|
|
if tmproot:
|
|
|
shutil.rmtree(tmproot)
|
|
|
else:
|
|
|
util.unlink(b)
|
|
|
util.unlink(c)
|
|
|
# if not uselocalpath, d is the 'orig'/backup file which we
|
|
|
# shouldn't delete.
|
|
|
if d and uselocalpath:
|
|
|
util.unlink(d)
|
|
|
|
|
|
def _filemerge(premerge, repo, wctx, mynode, orig, fcd, fco, fca, labels=None):
|
|
|
"""perform a 3-way merge in the working directory
|
|
|
|
|
|
premerge = whether this is a premerge
|
|
|
mynode = parent node before merge
|
|
|
orig = original local filename before merge
|
|
|
fco = other file context
|
|
|
fca = ancestor file context
|
|
|
fcd = local file context for current/destination file
|
|
|
|
|
|
Returns whether the merge is complete, the return value of the merge, and
|
|
|
a boolean indicating whether the file was deleted from disk."""
|
|
|
|
|
|
if not fco.cmp(fcd): # files identical?
|
|
|
return True, None, False
|
|
|
|
|
|
ui = repo.ui
|
|
|
fd = fcd.path()
|
|
|
binary = fcd.isbinary() or fco.isbinary() or fca.isbinary()
|
|
|
symlink = 'l' in fcd.flags() + fco.flags()
|
|
|
changedelete = fcd.isabsent() or fco.isabsent()
|
|
|
tool, toolpath = _picktool(repo, ui, fd, binary, symlink, changedelete)
|
|
|
if tool in internals and tool.startswith('internal:'):
|
|
|
# normalize to new-style names (':merge' etc)
|
|
|
tool = tool[len('internal'):]
|
|
|
ui.debug("picked tool '%s' for %s (binary %s symlink %s changedelete %s)\n"
|
|
|
% (tool, fd, pycompat.bytestr(binary), pycompat.bytestr(symlink),
|
|
|
pycompat.bytestr(changedelete)))
|
|
|
|
|
|
if tool in internals:
|
|
|
func = internals[tool]
|
|
|
mergetype = func.mergetype
|
|
|
onfailure = func.onfailure
|
|
|
precheck = func.precheck
|
|
|
isexternal = False
|
|
|
else:
|
|
|
if wctx.isinmemory():
|
|
|
func = _xmergeimm
|
|
|
else:
|
|
|
func = _xmerge
|
|
|
mergetype = fullmerge
|
|
|
onfailure = _("merging %s failed!\n")
|
|
|
precheck = None
|
|
|
isexternal = True
|
|
|
|
|
|
toolconf = tool, toolpath, binary, symlink
|
|
|
|
|
|
if mergetype == nomerge:
|
|
|
r, deleted = func(repo, mynode, orig, fcd, fco, fca, toolconf, labels)
|
|
|
return True, r, deleted
|
|
|
|
|
|
if premerge:
|
|
|
if orig != fco.path():
|
|
|
ui.status(_("merging %s and %s to %s\n") % (orig, fco.path(), fd))
|
|
|
else:
|
|
|
ui.status(_("merging %s\n") % fd)
|
|
|
|
|
|
ui.debug("my %s other %s ancestor %s\n" % (fcd, fco, fca))
|
|
|
|
|
|
if precheck and not precheck(repo, mynode, orig, fcd, fco, fca,
|
|
|
toolconf):
|
|
|
if onfailure:
|
|
|
if wctx.isinmemory():
|
|
|
raise error.InMemoryMergeConflictsError('in-memory merge does '
|
|
|
'not support merge '
|
|
|
'conflicts')
|
|
|
ui.warn(onfailure % fd)
|
|
|
return True, 1, False
|
|
|
|
|
|
back = _makebackup(repo, ui, wctx, fcd, premerge)
|
|
|
files = (None, None, None, back)
|
|
|
r = 1
|
|
|
try:
|
|
|
internalmarkerstyle = ui.config('ui', 'mergemarkers')
|
|
|
if isexternal:
|
|
|
markerstyle = _toolstr(ui, tool, 'mergemarkers')
|
|
|
else:
|
|
|
markerstyle = internalmarkerstyle
|
|
|
|
|
|
if not labels:
|
|
|
labels = _defaultconflictlabels
|
|
|
formattedlabels = labels
|
|
|
if markerstyle != 'basic':
|
|
|
formattedlabels = _formatlabels(repo, fcd, fco, fca, labels,
|
|
|
tool=tool)
|
|
|
|
|
|
if premerge and mergetype == fullmerge:
|
|
|
# conflict markers generated by premerge will use 'detailed'
|
|
|
# settings if either ui.mergemarkers or the tool's mergemarkers
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# setting is 'detailed'. This way tools can have basic labels in
|
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# space-constrained areas of the UI, but still get full information
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# in conflict markers if premerge is 'keep' or 'keep-merge3'.
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premergelabels = labels
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labeltool = None
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if markerstyle != 'basic':
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# respect 'tool's mergemarkertemplate (which defaults to
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# ui.mergemarkertemplate)
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labeltool = tool
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if internalmarkerstyle != 'basic' or markerstyle != 'basic':
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premergelabels = _formatlabels(repo, fcd, fco, fca,
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premergelabels, tool=labeltool)
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|
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r = _premerge(repo, fcd, fco, fca, toolconf, files,
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labels=premergelabels)
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# complete if premerge successful (r is 0)
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|
return not r, r, False
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|
|
|
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|
needcheck, r, deleted = func(repo, mynode, orig, fcd, fco, fca,
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toolconf, files, labels=formattedlabels)
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|
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|
|
if needcheck:
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|
r = _check(repo, r, ui, tool, fcd, files)
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|
|
|
|
|
if r:
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|
|
if onfailure:
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|
|
if wctx.isinmemory():
|
|
|
raise error.InMemoryMergeConflictsError('in-memory merge '
|
|
|
'does not support '
|
|
|
'merge conflicts')
|
|
|
ui.warn(onfailure % fd)
|
|
|
_onfilemergefailure(ui)
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|
|
|
|
|
return True, r, deleted
|
|
|
finally:
|
|
|
if not r and back is not None:
|
|
|
back.remove()
|
|
|
|
|
|
def _haltmerge():
|
|
|
msg = _('merge halted after failed merge (see hg resolve)')
|
|
|
raise error.InterventionRequired(msg)
|
|
|
|
|
|
def _onfilemergefailure(ui):
|
|
|
action = ui.config('merge', 'on-failure')
|
|
|
if action == 'prompt':
|
|
|
msg = _('continue merge operation (yn)?' '$$ &Yes $$ &No')
|
|
|
if ui.promptchoice(msg, 0) == 1:
|
|
|
_haltmerge()
|
|
|
if action == 'halt':
|
|
|
_haltmerge()
|
|
|
# default action is 'continue', in which case we neither prompt nor halt
|
|
|
|
|
|
def _check(repo, r, ui, tool, fcd, files):
|
|
|
fd = fcd.path()
|
|
|
unused, unused, unused, back = files
|
|
|
|
|
|
if not r and (_toolbool(ui, tool, "checkconflicts") or
|
|
|
'conflicts' in _toollist(ui, tool, "check")):
|
|
|
if re.search("^(<<<<<<< .*|=======|>>>>>>> .*)$", fcd.data(),
|
|
|
re.MULTILINE):
|
|
|
r = 1
|
|
|
|
|
|
checked = False
|
|
|
if 'prompt' in _toollist(ui, tool, "check"):
|
|
|
checked = True
|
|
|
if ui.promptchoice(_("was merge of '%s' successful (yn)?"
|
|
|
"$$ &Yes $$ &No") % fd, 1):
|
|
|
r = 1
|
|
|
|
|
|
if not r and not checked and (_toolbool(ui, tool, "checkchanged") or
|
|
|
'changed' in
|
|
|
_toollist(ui, tool, "check")):
|
|
|
if back is not None and not fcd.cmp(back):
|
|
|
if ui.promptchoice(_(" output file %s appears unchanged\n"
|
|
|
"was merge successful (yn)?"
|
|
|
"$$ &Yes $$ &No") % fd, 1):
|
|
|
r = 1
|
|
|
|
|
|
if back is not None and _toolbool(ui, tool, "fixeol"):
|
|
|
_matcheol(_workingpath(repo, fcd), back)
|
|
|
|
|
|
return r
|
|
|
|
|
|
def _workingpath(repo, ctx):
|
|
|
return repo.wjoin(ctx.path())
|
|
|
|
|
|
def premerge(repo, wctx, mynode, orig, fcd, fco, fca, labels=None):
|
|
|
return _filemerge(True, repo, wctx, mynode, orig, fcd, fco, fca,
|
|
|
labels=labels)
|
|
|
|
|
|
def filemerge(repo, wctx, mynode, orig, fcd, fco, fca, labels=None):
|
|
|
return _filemerge(False, repo, wctx, mynode, orig, fcd, fco, fca,
|
|
|
labels=labels)
|
|
|
|
|
|
def loadinternalmerge(ui, extname, registrarobj):
|
|
|
"""Load internal merge tool from specified registrarobj
|
|
|
"""
|
|
|
for name, func in registrarobj._table.iteritems():
|
|
|
fullname = ':' + name
|
|
|
internals[fullname] = func
|
|
|
internals['internal:' + name] = func
|
|
|
internalsdoc[fullname] = func
|
|
|
|
|
|
# load built-in merge tools explicitly to setup internalsdoc
|
|
|
loadinternalmerge(None, None, internaltool)
|
|
|
|
|
|
# tell hggettext to extract docstrings from these functions:
|
|
|
i18nfunctions = internals.values()
|
|
|
|
