comparison mercurial/filemerge.py @ 34784:123a68e6b473

filemerge: store backups in the overlayworkingctx if using imm

Differential Revision: https://phab.mercurial-scm.org/D1059

34783:0c812885586b

    # 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)
    if premerge:
        util.copyfile(a, back)
    return context.arbitraryfilectx(back, repo=repo)

def _maketempfiles(repo, fco, fca):
    """Writes out `fco` and `fca` as temporary files, so an external merge
    tool may use them.
    """

34784:123a68e6b473

    # 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:]
        wctx[relpath].write(fcd.data(), fcd.flags())
        return wctx[relpath]
    else:
        # Otherwise, write to wherever the user specified the backups should go.
        #
        # A arbitraryfilectx is returned, so we can run the same functions on
        # the backup context regardless of where it lives.
        if premerge:
            util.copyfile(a, back)
        return context.arbitraryfilectx(back, repo=repo)

def _maketempfiles(repo, fco, fca):
    """Writes out `fco` and `fca` as temporary files, so an external merge
    tool may use them.
    """