comparison mercurial/commands.py @ 45827:8d72e29ad1e0

errors: introduce InputError and use it from commands and cmdutil

This patch introduces a `InputError` class and replaces many uses of
`error.Abort` by it in `commands` and `cmdutil`. This is a part of
https://www.mercurial-scm.org/wiki/ErrorCategoriesPlan. There will
later be a different class for state errors (to raise e.g. when
there's an unfinished operation). It's not always clear when one
should report an input error and when it should be a state error. We
can always adjust later if I got something wrong in this patch (but
feel free to point out any you notice now).

Differential Revision: https://phab.mercurial-scm.org/D9167

45826:21733e8c924f

    dryrun = opts.get('dry_run')
    abortstate = cmdutil.getunfinishedstate(repo)
    if not abortstate:
        raise error.Abort(_(b'no operation in progress'))
    if not abortstate.abortfunc:
        raise error.Abort(
            (
                _(b"%s in progress but does not support 'hg abort'")
                % (abortstate._opname)
            ),
            hint=abortstate.hint(),

    Returns 0 on success.
    """
    opts = pycompat.byteskwargs(opts)
    if not pats:
        raise error.Abort(_(b'at least one filename or pattern is required'))

    if opts.get(b'follow'):
        # --follow is deprecated and now just an alias for -f/--file
        # to mimic the behavior of Mercurial before version 1.5
        opts[b'file'] = True

    if (
        linenumber
        and (not opts.get(b'changeset'))
        and (not opts.get(b'number'))
    ):
        raise error.Abort(_(b'at least one of -n/-c is required for -l'))

    rev = opts.get(b'rev')
    if rev:
        repo = scmutil.unhidehashlikerevs(repo, [rev], b'nowarn')
    ctx = scmutil.revsingle(repo, rev)

    rev = opts.get(b'rev')
    if rev:
        repo = scmutil.unhidehashlikerevs(repo, [rev], b'nowarn')
    ctx = scmutil.revsingle(repo, rev)
    if not ctx:
        raise error.Abort(_(b'no working directory: please specify a revision'))
    node = ctx.node()
    dest = cmdutil.makefilename(ctx, dest)
    if os.path.realpath(dest) == repo.root:
        raise error.Abort(_(b'repository root cannot be destination'))

    kind = opts.get(b'type') or archival.guesskind(dest) or b'files'
    prefix = opts.get(b'prefix')

    if dest == b'-':
        if kind == b'files':
            raise error.Abort(_(b'cannot archive plain files to stdout'))
        dest = cmdutil.makefileobj(ctx, dest)
        if not prefix:
            prefix = os.path.basename(repo.root) + b'-%h'

    prefix = cmdutil.makefilename(ctx, prefix)

def _dobackout(ui, repo, node=None, rev=None, **opts):
    cmdutil.check_incompatible_arguments(opts, 'no_commit', ['commit', 'merge'])
    opts = pycompat.byteskwargs(opts)

    if rev and node:
        raise error.Abort(_(b"please specify just one revision"))

    if not rev:
        rev = node

    if not rev:
        raise error.Abort(_(b"please specify a revision to backout"))

    date = opts.get(b'date')
    if date:
        opts[b'date'] = dateutil.parsedate(date)

    ctx = scmutil.revsingle(repo, rev)
    node = ctx.node()

    op1, op2 = repo.dirstate.parents()
    if not repo.changelog.isancestor(node, op1):
        raise error.Abort(_(b'cannot backout change that is not an ancestor'))

    p1, p2 = repo.changelog.parents(node)
    if p1 == nullid:
        raise error.Abort(_(b'cannot backout a change with no parents'))
    if p2 != nullid:
        if not opts.get(b'parent'):
            raise error.Abort(_(b'cannot backout a merge changeset'))
        p = repo.lookup(opts[b'parent'])
        if p not in (p1, p2):
            raise error.Abort(
                _(b'%s is not a parent of %s') % (short(p), short(node))
            )
        parent = p
    else:
        if opts.get(b'parent'):
            raise error.Abort(_(b'cannot use --parent on non-merge changeset'))
        parent = p1

    # the backout should appear on the same branch
    branch = repo.dirstate.branch()
    bheads = repo.branchheads(branch)

        elif cmd == b"bad":
            bad = True
        else:
            reset = True
    elif extra:
        raise error.Abort(_(b'incompatible arguments'))

    incompatibles = {
        b'--bad': bad,
        b'--command': bool(command),
        b'--extend': extend,

    }

    enabled = [x for x in incompatibles if incompatibles[x]]

    if len(enabled) > 1:
        raise error.Abort(
            _(b'%s and %s are incompatible') % tuple(sorted(enabled)[0:2])
        )

    if reset:
        hbisect.resetstate(repo)

    cmdutil.check_incompatible_arguments(
        opts, b'inactive', [b'delete', b'list']
    )
    if not names and action in {b'add', b'delete'}:
        raise error.Abort(_(b"bookmark name required"))

    if action in {b'add', b'delete', b'rename', b'inactive'}:
        with repo.wlock(), repo.lock(), repo.transaction(b'bookmark') as tr:
            if action == b'delete':
                names = pycompat.maplist(repo._bookmarks.expandname, names)
                bookmarks.delete(repo, tr, names)
            elif action == b'rename':
                if not names:
                    raise error.Abort(_(b"new bookmark name required"))
                elif len(names) > 1:
                    raise error.Abort(_(b"only one new bookmark name allowed"))
                oldname = repo._bookmarks.expandname(opts[b'rename'])
                bookmarks.rename(repo, tr, oldname, names[0], force, inactive)
            elif action == b'add':
                bookmarks.addbookmarks(repo, tr, names, rev, force, inactive)
            elif action == b'inactive':

    if label:
        label = label.strip()

    if not opts.get(b'clean') and not label:
        if revs:
            raise error.Abort(_(b"no branch name specified for the revisions"))
        ui.write(b"%s\n" % repo.dirstate.branch())
        return

    with repo.wlock():
        if opts.get(b'clean'):

            if revs:
                return cmdutil.changebranch(ui, repo, revs, label, opts)

            if not opts.get(b'force') and label in repo.branchmap():
                if label not in [p.branch() for p in repo[None].parents()]:
                    raise error.Abort(
                        _(b'a branch of the same name already exists'),
                        # i18n: "it" refers to an existing branch
                        hint=_(b"use 'hg update' to switch to it"),
                    )

    revs = None
    if b'rev' in opts:
        revstrings = opts[b'rev']
        revs = scmutil.revrange(repo, revstrings)
        if revstrings and not revs:
            raise error.Abort(_(b'no commits to bundle'))

    bundletype = opts.get(b'type', b'bzip2').lower()
    try:
        bundlespec = bundlecaches.parsebundlespec(
            repo, bundletype, strict=False
        )
    except error.UnsupportedBundleSpecification as e:
        raise error.Abort(
            pycompat.bytestr(e),
            hint=_(b"see 'hg help bundlespec' for supported values for --type"),
        )
    cgversion = bundlespec.contentopts[b"cg.version"]

    # Packed bundles are a pseudo bundle format for now.
    if cgversion == b's1':
        raise error.Abort(
            _(b'packed bundles cannot be produced by "hg bundle"'),
            hint=_(b"use 'hg debugcreatestreamclonebundle'"),
        )

    if opts.get(b'all'):
        if dest:
            raise error.Abort(
                _(b"--all is incompatible with specifying a destination")
            )
        if opts.get(b'base'):
            ui.warn(_(b"ignoring --base because --all was specified\n"))
        base = [nullrev]

            _(b"repository does not support bundle version %s") % cgversion
        )

    if base:
        if dest:
            raise error.Abort(
                _(b"--base is incompatible with specifying a destination")
            )
        common = [repo[rev].node() for rev in base]
        heads = [repo[r].node() for r in revs] if revs else None
        outgoing = discovery.outgoing(repo, common, heads)

    extra = {}
    if opts.get(b'close_branch') or opts.get(b'force_close_branch'):
        extra[b'close'] = b'1'

        if repo[b'.'].closesbranch():
            raise error.Abort(
                _(b'current revision is already a branch closing head')
            )
        elif not bheads:
            raise error.Abort(_(b'branch "%s" has no heads to close') % branch)
        elif (
            branch == repo[b'.'].branch()
            and repo[b'.'].node() not in bheads
            and not opts.get(b'force_close_branch')
        ):
            hint = _(
                b'use --force-close-branch to close branch from a non-head'
                b' changeset'
            )
            raise error.Abort(_(b'can only close branch heads'), hint=hint)
        elif opts.get(b'amend'):
            if (
                repo[b'.'].p1().branch() != branch
                and repo[b'.'].p2().branch() != branch
            ):
                raise error.Abort(_(b'can only close branch heads'))

    if opts.get(b'amend'):
        if ui.configbool(b'ui', b'commitsubrepos'):
            raise error.Abort(_(b'cannot amend with ui.commitsubrepos enabled'))

        old = repo[b'.']
        rewriteutil.precheck(repo, [old.rev()], b'amend')

        # Currently histedit gets confused if an amend happens while histedit

    editopts = (b'edit', b'local', b'global', b'shared', b'non_shared')
    if any(opts.get(o) for o in editopts):
        cmdutil.check_at_most_one_arg(opts, *editopts[1:])
        if opts.get(b'local'):
            if not repo:
                raise error.Abort(_(b"can't use --local outside a repository"))
            paths = [repo.vfs.join(b'hgrc')]
        elif opts.get(b'global'):
            paths = rcutil.systemrcpath()
        elif opts.get(b'shared'):
            if not repo.shared():
                raise error.Abort(
                    _(b"repository is not shared; can't use --shared")
                )
                if requirements.SHARESAFE_REQUIREMENT not in repo.requirements:
                    raise error.Abort(
                        _(
                            b"share safe feature not unabled; "
                            b"unable to edit shared source repository config"
                        )
                    )

            fp.close()

        editor = ui.geteditor()
        ui.system(
            b"%s \"%s\"" % (editor, f),
            onerr=error.Abort,
            errprefix=_(b"edit failed"),
            blockedtag=b'config_edit',
        )
        return
    ui.pager(b'config')

    cmdutil.check_at_most_one_arg(opts, b'rev', b'bookmark')

    if bookmark:
        if bookmark not in repo._bookmarks:
            raise error.Abort(_(b"bookmark '%s' not found") % bookmark)

        revs = scmutil.bookmarkrevs(repo, bookmark)
    else:
        if not changesets:
            changesets = [b'.']

        repo = scmutil.unhidehashlikerevs(repo, changesets, b'nowarn')
        revs = scmutil.revrange(repo, changesets)

    if not revs:
        raise error.Abort(_(b"export requires at least one changeset"))
    if len(revs) > 1:
        ui.note(_(b'exporting patches:\n'))
    else:
        ui.note(_(b'exporting patch:\n'))

    Returns 0 on success.
    """

    opts = pycompat.byteskwargs(opts)
    if not pats:
        raise error.Abort(_(b'no files specified'))

    m = scmutil.match(repo[None], pats, opts)
    dryrun, interactive = opts.get(b'dry_run'), opts.get(b'interactive')
    uipathfn = scmutil.getuipathfn(repo, legacyrelativevalue=True)
    rejected = cmdutil.forget(

        )
        return cmdutil.abortgraft(ui, repo, graftstate)
    elif opts.get(b'continue'):
        cont = True
        if revs:
            raise error.Abort(_(b"can't specify --continue and revisions"))
        # read in unfinished revisions
        if graftstate.exists():
            statedata = cmdutil.readgraftstate(repo, graftstate)
            if statedata.get(b'date'):
                opts[b'date'] = statedata[b'date']

            revs = [repo[node].rev() for node in nodes]
        else:
            cmdutil.wrongtooltocontinue(repo, _(b'graft'))
    else:
        if not revs:
            raise error.Abort(_(b'no revisions specified'))
        cmdutil.checkunfinished(repo)
        cmdutil.bailifchanged(repo)
        revs = scmutil.revrange(repo, revs)

    skipped = set()

            skipped.add(rev)
    revs = [r for r in revs if r not in skipped]
    if not revs:
        return -1
    if basectx is not None and len(revs) != 1:
        raise error.Abort(_(b'only one revision allowed with --base '))

    # Don't check in the --continue case, in effect retaining --force across
    # --continues. That's because without --force, any revisions we decided to
    # skip would have been filtered out here, so they wouldn't have made their
    # way to the graftstate. With --force, any revisions we would have otherwise

    Returns 0 if successful.
    """

    opts = pycompat.byteskwargs(opts)
    if not repo and not source:
        raise error.Abort(
            _(b"there is no Mercurial repository here (.hg not found)")
        )

    default = not (num or id or branch or tags or bookmarks)
    output = []

    fm = ui.formatter(b'identify', opts)
    fm.startitem()

    if not repo:
        if num or branch or tags:
            raise error.Abort(
                _(b"can't query remote revision number, branch, or tags")
            )
        if not rev and revs:
            rev = revs[0]
        if not rev:

        opts, 'no_commit', ['bypass', 'secret']
    )
    cmdutil.check_incompatible_arguments(opts, 'exact', ['edit', 'prefix'])
    opts = pycompat.byteskwargs(opts)
    if not patch1:
        raise error.Abort(_(b'need at least one patch to import'))

    patches = (patch1,) + patches

    date = opts.get(b'date')
    if date:

    exact = opts.get(b'exact')
    update = not opts.get(b'bypass')
    try:
        sim = float(opts.get(b'similarity') or 0)
    except ValueError:
        raise error.Abort(_(b'similarity must be a number'))
    if sim < 0 or sim > 100:
        raise error.Abort(_(b'similarity must be between 0 and 100'))
    if sim and not update:
        raise error.Abort(_(b'cannot use --similarity with --bypass'))

    base = opts[b"base"]
    msgs = []
    ret = 0

                        )
                        ret = 1
                        break

                if not haspatch:
                    raise error.Abort(_(b'%s: no diffs found') % patchurl)

            if msgs:
                repo.savecommitmessage(b'\n* * *\n'.join(msgs))
        return ret

    """
    opts = pycompat.byteskwargs(opts)
    linerange = opts.get(b'line_range')

    if linerange and not opts.get(b'follow'):
        raise error.Abort(_(b'--line-range requires --follow'))

    if linerange and pats:
        # TODO: take pats as patterns with no line-range filter
        raise error.Abort(
            _(b'FILE arguments are not compatible with --line-range option')
        )

    repo = scmutil.unhidehashlikerevs(repo, opts.get(b'rev'), b'nowarn')
    revs, differ = logcmdutil.getrevs(

    opts = pycompat.byteskwargs(opts)
    fm = ui.formatter(b'manifest', opts)

    if opts.get(b'all'):
        if rev or node:
            raise error.Abort(_(b"can't specify a revision with --all"))

        res = set()
        for rev in repo:
            ctx = repo[rev]
            res |= set(ctx.files())

            fm.write(b"path", b'%s\n', f)
        fm.end()
        return

    if rev and node:
        raise error.Abort(_(b"please specify just one revision"))

    if not node:
        node = rev

    char = {b'l': b'@', b'x': b'*', b'': b'', b't': b'd'}

            raise error.Abort(
                _(b'cannot abort merge with %s in progress') % (state._opname),
                hint=state.hint(),
            )
        if node:
            raise error.Abort(_(b"cannot specify a node with --abort"))
        return hg.abortmerge(repo.ui, repo)

    if opts.get(b'rev') and node:
        raise error.Abort(_(b"please specify just one revision"))
    if not node:
        node = opts.get(b'rev')

    if node:
        ctx = scmutil.revsingle(repo, node)
    else:
        if ui.configbool(b'commands', b'merge.require-rev'):
            raise error.Abort(
                _(
                    b'configuration requires specifying revision to merge '
                    b'with'
                )
            )
        ctx = repo[destutil.destmerge(repo)]

    if ctx.node() is None:
        raise error.Abort(_(b'merging with the working copy has no effect'))

    if opts.get(b'preview'):
        # find nodes that are ancestors of p2 but not of p1
        p1 = repo[b'.'].node()
        p2 = ctx.node()

    ctx = scmutil.revsingle(repo, rev, None)

    if file_:
        m = scmutil.match(ctx, (file_,), opts)
        if m.anypats() or len(m.files()) != 1:
            raise error.Abort(_(b'can only specify an explicit filename'))
        file_ = m.files()[0]
        filenodes = []
        for cp in ctx.parents():
            if not cp:
                continue
            try:
                filenodes.append(cp.filenode(file_))
            except error.LookupError:
                pass
        if not filenodes:
            raise error.Abort(_(b"'%s' not found in manifest!") % file_)
        p = []
        for fn in filenodes:
            fctx = repo.filectx(file_, fileid=fn)
            p.append(fctx.node())
    else:

    # search for a unique phase argument
    targetphase = None
    for idx, name in enumerate(phases.cmdphasenames):
        if opts[name]:
            if targetphase is not None:
                raise error.Abort(_(b'only one phase can be specified'))
            targetphase = idx

    # look for specified revision
    revs = list(revs)
    revs.extend(opts[b'rev'])

            ui.write(b'%i: %s\n' % (ctx.rev(), ctx.phasestr()))
    else:
        with repo.lock(), repo.transaction(b"phase") as tr:
            # set phase
            if not revs:
                raise error.Abort(_(b'empty revision set'))
            nodes = [repo[r].node() for r in revs]
            # moving revision from public to draft may hide them
            # We have to check result on an unfiltered repository
            unfi = repo.unfiltered()
            getphase = unfi._phasecache.phase

    if ui.configbool(b'commands', b'update.requiredest') and opts.get(
        b'update'
    ):
        msg = _(b'update destination required by configuration')
        hint = _(b'use hg pull followed by hg update DEST')
        raise error.Abort(msg, hint=hint)

    source, branches = hg.parseurl(ui.expandpath(source), opts.get(b'branch'))
    ui.status(_(b'pulling from %s\n') % util.hidepassword(source))
    other = hg.peer(repo, opts, source)
    try:

            remotebookmarks = bookmarks.unhexlifybookmarks(remotebookmarks)
            pullopargs[b'remotebookmarks'] = remotebookmarks
            for b in opts.get(b'bookmark', []):
                b = repo._bookmarks.expandname(b)
                if b not in remotebookmarks:
                    raise error.Abort(_(b'remote bookmark %s not found!') % b)
                nodes.append(remotebookmarks[b])
            for i, rev in enumerate(revs):
                node = fnodes[i].result()
                nodes.append(node)
                if rev == checkout:

    other = hg.peer(repo, opts, dest)

    if revs:
        revs = [repo[r].node() for r in scmutil.revrange(repo, revs)]
        if not revs:
            raise error.Abort(
                _(b"specified revisions evaluate to an empty set"),
                hint=_(b"use different revision arguments"),
            )
    elif path.pushrev:
        # It doesn't make any sense to specify ancestor revisions. So limit
        # to DAG heads to make discovery simpler.
        expr = revsetlang.formatspec(b'heads(%r)', path.pushrev)
        revs = scmutil.revrange(repo, [expr])
        revs = [repo[rev].node() for rev in revs]
        if not revs:
            raise error.Abort(
                _(b'default push revset for path evaluates to an empty set')
            )
    elif ui.configbool(b'commands', b'push.require-revs'):
        raise error.Abort(
            _(b'no revisions specified to push'),
            hint=_(b'did you mean "hg push -r ."?'),
        )

    repo._subtoppath = dest

    opts = pycompat.byteskwargs(opts)
    after, force = opts.get(b'after'), opts.get(b'force')
    dryrun = opts.get(b'dry_run')
    if not pats and not after:
        raise error.Abort(_(b'no files specified'))

    m = scmutil.match(repo[None], pats, opts)
    subrepos = opts.get(b'subrepos')
    uipathfn = scmutil.getuipathfn(repo, legacyrelativevalue=True)
    return cmdutil.remove(

    flaglist = b'all mark unmark list no_status re_merge'.split()
    all, mark, unmark, show, nostatus, remerge = [opts.get(o) for o in flaglist]

    actioncount = len(list(filter(None, [show, mark, unmark, remerge])))
    if actioncount > 1:
        raise error.Abort(_(b"too many actions specified"))
    elif actioncount == 0 and ui.configbool(
        b'commands', b'resolve.explicit-re-merge'
    ):
        hint = _(b'use --mark, --unmark, --list or --re-merge')
        raise error.Abort(_(b'no action specified'), hint=hint)
    if pats and all:
        raise error.Abort(_(b"can't specify --all and patterns"))
    if not (all or pats or show or mark or unmark):
        raise error.Abort(
            _(b'no files or directories specified'),
            hint=b'use --all to re-merge all unresolved files',
        )

    if confirm:

        opts[b"rev"] = cmdutil.finddate(ui, repo, opts[b"date"])

    parent, p2 = repo.dirstate.parents()
    if not opts.get(b'rev') and p2 != nullid:
        # revert after merge is a trap for new users (issue2915)
        raise error.Abort(
            _(b'uncommitted merge with no revision specified'),
            hint=_(b"use 'hg update' or see 'hg help revert'"),
        )

    rev = opts.get(b'rev')

        if p2 != nullid:
            hint = _(
                b"uncommitted merge, use --all to discard all changes,"
                b" or 'hg update -C .' to abort the merge"
            )
            raise error.Abort(msg, hint=hint)
        dirty = any(repo.status())
        node = ctx.node()
        if node != parent:
            if dirty:
                hint = (

                )
        elif dirty:
            hint = _(b"uncommitted changes, use --all to discard all changes")
        else:
            hint = _(b"use --all to revert all files")
        raise error.Abort(msg, hint=hint)

    return cmdutil.revert(ui, repo, ctx, *pats, **pycompat.strkwargs(opts))


@command(

    """

    cmdutil.check_incompatible_arguments(opts, 'stdio', ['cmdserver'])
    opts = pycompat.byteskwargs(opts)
    if opts[b"print_url"] and ui.verbose:
        raise error.Abort(_(b"cannot use --print-url with --verbose"))

    if opts[b"stdio"]:
        if repo is None:
            raise error.RepoError(
                _(b"there is no Mercurial repository here (.hg not found)")

    def checkopt(opt):
        if opts.get(opt):
            for i, allowable in allowables:
                if opts[i] and opt not in allowable:
                    raise error.Abort(
                        _(
                            b"options '--%s' and '--%s' may not be "
                            b"used together"
                        )
                        % (opt, i)
                    )
            return True

    if checkopt(b'cleanup'):
        if pats:
            raise error.Abort(_(b"cannot specify names when using '--cleanup'"))
        return shelvemod.cleanupcmd(ui, repo)
    elif checkopt(b'delete'):
        return shelvemod.deletecmd(ui, repo, pats)
    elif checkopt(b'list'):
        return shelvemod.listcmd(ui, repo, pats, opts)

        else:
            terse = ui.config(b'commands', b'status.terse')

    if revs and terse:
        msg = _(b'cannot use --terse with --rev')
        raise error.Abort(msg)
    elif change:
        repo = scmutil.unhidehashlikerevs(repo, [change], b'nowarn')
        ctx2 = scmutil.revsingle(repo, change, None)
        ctx1 = ctx2.p1()
    else:

    opts = pycompat.byteskwargs(opts)
    with repo.wlock(), repo.lock():
        rev_ = b"."
        names = [t.strip() for t in (name1,) + names]
        if len(names) != len(set(names)):
            raise error.Abort(_(b'tag names must be unique'))
        for n in names:
            scmutil.checknewlabel(repo, n, b'tag')
            if not n:
                raise error.Abort(
                    _(b'tag names cannot consist entirely of whitespace')
                )
        if opts.get(b'rev'):
            rev_ = opts[b'rev']
        message = opts.get(b'message')

            for n in names:
                if repo.tagtype(n) == b'global':
                    alltags = tagsmod.findglobaltags(ui, repo)
                    if alltags[n][0] == nullid:
                        raise error.Abort(_(b"tag '%s' is already removed") % n)
                if not repo.tagtype(n):
                    raise error.Abort(_(b"tag '%s' does not exist") % n)
                if repo.tagtype(n) != expectedtype:
                    if expectedtype == b'global':
                        raise error.Abort(
                            _(b"tag '%s' is not a global tag") % n
                        )
                    else:
                        raise error.Abort(_(b"tag '%s' is not a local tag") % n)
            rev_ = b'null'
            if not message:
                # we don't translate commit messages
                message = b'Removed tag %s' % b', '.join(names)
        elif not opts.get(b'force'):
            for n in names:
                if n in repo.tags():
                    raise error.Abort(
                        _(b"tag '%s' already exists (use -f to force)") % n
                    )
        if not opts.get(b'local'):
            p1, p2 = repo.dirstate.parents()
            if p2 != nullid:
                raise error.Abort(_(b'uncommitted merge'))
            bheads = repo.branchheads()
            if not opts.get(b'force') and bheads and p1 not in bheads:
                raise error.Abort(
                    _(
                        b'working directory is not at a branch head '
                        b'(use -f to force)'
                    )
                )

        # don't allow tagging the null rev
        if (
            not opts.get(b'remove')
            and scmutil.revsingle(repo, rev_).rev() == nullrev
        ):
            raise error.Abort(_(b"cannot tag null revision"))

        tagsmod.tag(
            repo,
            names,
            node,

    with repo.lock():
        for fname in fnames:
            f = hg.openpath(ui, fname)
            gen = exchange.readbundle(ui, f, fname)
            if isinstance(gen, streamclone.streamcloneapplier):
                raise error.Abort(
                    _(
                        b'packed bundles cannot be applied with '
                        b'"hg unbundle"'
                    ),
                    hint=_(b'use "hg debugapplystreamclonebundle"'),

    date = opts.get('date')
    clean = opts.get('clean')
    check = opts.get('check')
    merge = opts.get('merge')
    if rev and node:
        raise error.Abort(_(b"please specify just one revision"))

    if ui.configbool(b'commands', b'update.requiredest'):
        if not node and not rev and not date:
            raise error.Abort(
                _(b'you must specify a destination'),
                hint=_(b'for example: hg update ".::"'),
            )

    if rev is None or rev == b'':
        rev = node

    if date and rev is not None:
        raise error.Abort(_(b"you can't specify a revision and a date"))

    updatecheck = None
    if check:
        updatecheck = b'abort'
    elif merge:

45827:8d72e29ad1e0

    dryrun = opts.get('dry_run')
    abortstate = cmdutil.getunfinishedstate(repo)
    if not abortstate:
        raise error.Abort(_(b'no operation in progress'))
    if not abortstate.abortfunc:
        raise error.InputError(
            (
                _(b"%s in progress but does not support 'hg abort'")
                % (abortstate._opname)
            ),
            hint=abortstate.hint(),

    Returns 0 on success.
    """
    opts = pycompat.byteskwargs(opts)
    if not pats:
        raise error.InputError(
            _(b'at least one filename or pattern is required')
        )

    if opts.get(b'follow'):
        # --follow is deprecated and now just an alias for -f/--file
        # to mimic the behavior of Mercurial before version 1.5
        opts[b'file'] = True

    if (
        linenumber
        and (not opts.get(b'changeset'))
        and (not opts.get(b'number'))
    ):
        raise error.InputError(_(b'at least one of -n/-c is required for -l'))

    rev = opts.get(b'rev')
    if rev:
        repo = scmutil.unhidehashlikerevs(repo, [rev], b'nowarn')
    ctx = scmutil.revsingle(repo, rev)

    rev = opts.get(b'rev')
    if rev:
        repo = scmutil.unhidehashlikerevs(repo, [rev], b'nowarn')
    ctx = scmutil.revsingle(repo, rev)
    if not ctx:
        raise error.InputError(
            _(b'no working directory: please specify a revision')
        )
    node = ctx.node()
    dest = cmdutil.makefilename(ctx, dest)
    if os.path.realpath(dest) == repo.root:
        raise error.InputError(_(b'repository root cannot be destination'))

    kind = opts.get(b'type') or archival.guesskind(dest) or b'files'
    prefix = opts.get(b'prefix')

    if dest == b'-':
        if kind == b'files':
            raise error.InputError(_(b'cannot archive plain files to stdout'))
        dest = cmdutil.makefileobj(ctx, dest)
        if not prefix:
            prefix = os.path.basename(repo.root) + b'-%h'

    prefix = cmdutil.makefilename(ctx, prefix)

def _dobackout(ui, repo, node=None, rev=None, **opts):
    cmdutil.check_incompatible_arguments(opts, 'no_commit', ['commit', 'merge'])
    opts = pycompat.byteskwargs(opts)

    if rev and node:
        raise error.InputError(_(b"please specify just one revision"))

    if not rev:
        rev = node

    if not rev:
        raise error.InputError(_(b"please specify a revision to backout"))

    date = opts.get(b'date')
    if date:
        opts[b'date'] = dateutil.parsedate(date)

    ctx = scmutil.revsingle(repo, rev)
    node = ctx.node()

    op1, op2 = repo.dirstate.parents()
    if not repo.changelog.isancestor(node, op1):
        raise error.InputError(
            _(b'cannot backout change that is not an ancestor')
        )

    p1, p2 = repo.changelog.parents(node)
    if p1 == nullid:
        raise error.InputError(_(b'cannot backout a change with no parents'))
    if p2 != nullid:
        if not opts.get(b'parent'):
            raise error.InputError(_(b'cannot backout a merge changeset'))
        p = repo.lookup(opts[b'parent'])
        if p not in (p1, p2):
            raise error.InputError(
                _(b'%s is not a parent of %s') % (short(p), short(node))
            )
        parent = p
    else:
        if opts.get(b'parent'):
            raise error.InputError(
                _(b'cannot use --parent on non-merge changeset')
            )
        parent = p1

    # the backout should appear on the same branch
    branch = repo.dirstate.branch()
    bheads = repo.branchheads(branch)

        elif cmd == b"bad":
            bad = True
        else:
            reset = True
    elif extra:
        raise error.InputError(_(b'incompatible arguments'))

    incompatibles = {
        b'--bad': bad,
        b'--command': bool(command),
        b'--extend': extend,

    }

    enabled = [x for x in incompatibles if incompatibles[x]]

    if len(enabled) > 1:
        raise error.InputError(
            _(b'%s and %s are incompatible') % tuple(sorted(enabled)[0:2])
        )

    if reset:
        hbisect.resetstate(repo)

    cmdutil.check_incompatible_arguments(
        opts, b'inactive', [b'delete', b'list']
    )
    if not names and action in {b'add', b'delete'}:
        raise error.InputError(_(b"bookmark name required"))

    if action in {b'add', b'delete', b'rename', b'inactive'}:
        with repo.wlock(), repo.lock(), repo.transaction(b'bookmark') as tr:
            if action == b'delete':
                names = pycompat.maplist(repo._bookmarks.expandname, names)
                bookmarks.delete(repo, tr, names)
            elif action == b'rename':
                if not names:
                    raise error.InputError(_(b"new bookmark name required"))
                elif len(names) > 1:
                    raise error.InputError(
                        _(b"only one new bookmark name allowed")
                    )
                oldname = repo._bookmarks.expandname(opts[b'rename'])
                bookmarks.rename(repo, tr, oldname, names[0], force, inactive)
            elif action == b'add':
                bookmarks.addbookmarks(repo, tr, names, rev, force, inactive)
            elif action == b'inactive':

    if label:
        label = label.strip()

    if not opts.get(b'clean') and not label:
        if revs:
            raise error.InputError(
                _(b"no branch name specified for the revisions")
            )
        ui.write(b"%s\n" % repo.dirstate.branch())
        return

    with repo.wlock():
        if opts.get(b'clean'):

            if revs:
                return cmdutil.changebranch(ui, repo, revs, label, opts)

            if not opts.get(b'force') and label in repo.branchmap():
                if label not in [p.branch() for p in repo[None].parents()]:
                    raise error.InputError(
                        _(b'a branch of the same name already exists'),
                        # i18n: "it" refers to an existing branch
                        hint=_(b"use 'hg update' to switch to it"),
                    )

    revs = None
    if b'rev' in opts:
        revstrings = opts[b'rev']
        revs = scmutil.revrange(repo, revstrings)
        if revstrings and not revs:
            raise error.InputError(_(b'no commits to bundle'))

    bundletype = opts.get(b'type', b'bzip2').lower()
    try:
        bundlespec = bundlecaches.parsebundlespec(
            repo, bundletype, strict=False
        )
    except error.UnsupportedBundleSpecification as e:
        raise error.InputError(
            pycompat.bytestr(e),
            hint=_(b"see 'hg help bundlespec' for supported values for --type"),
        )
    cgversion = bundlespec.contentopts[b"cg.version"]

    # Packed bundles are a pseudo bundle format for now.
    if cgversion == b's1':
        raise error.InputError(
            _(b'packed bundles cannot be produced by "hg bundle"'),
            hint=_(b"use 'hg debugcreatestreamclonebundle'"),
        )

    if opts.get(b'all'):
        if dest:
            raise error.InputError(
                _(b"--all is incompatible with specifying a destination")
            )
        if opts.get(b'base'):
            ui.warn(_(b"ignoring --base because --all was specified\n"))
        base = [nullrev]

            _(b"repository does not support bundle version %s") % cgversion
        )

    if base:
        if dest:
            raise error.InputError(
                _(b"--base is incompatible with specifying a destination")
            )
        common = [repo[rev].node() for rev in base]
        heads = [repo[r].node() for r in revs] if revs else None
        outgoing = discovery.outgoing(repo, common, heads)

    extra = {}
    if opts.get(b'close_branch') or opts.get(b'force_close_branch'):
        extra[b'close'] = b'1'

        if repo[b'.'].closesbranch():
            raise error.InputError(
                _(b'current revision is already a branch closing head')
            )
        elif not bheads:
            raise error.InputError(
                _(b'branch "%s" has no heads to close') % branch
            )
        elif (
            branch == repo[b'.'].branch()
            and repo[b'.'].node() not in bheads
            and not opts.get(b'force_close_branch')
        ):
            hint = _(
                b'use --force-close-branch to close branch from a non-head'
                b' changeset'
            )
            raise error.InputError(_(b'can only close branch heads'), hint=hint)
        elif opts.get(b'amend'):
            if (
                repo[b'.'].p1().branch() != branch
                and repo[b'.'].p2().branch() != branch
            ):
                raise error.InputError(_(b'can only close branch heads'))

    if opts.get(b'amend'):
        if ui.configbool(b'ui', b'commitsubrepos'):
            raise error.InputError(
                _(b'cannot amend with ui.commitsubrepos enabled')
            )

        old = repo[b'.']
        rewriteutil.precheck(repo, [old.rev()], b'amend')

        # Currently histedit gets confused if an amend happens while histedit

    editopts = (b'edit', b'local', b'global', b'shared', b'non_shared')
    if any(opts.get(o) for o in editopts):
        cmdutil.check_at_most_one_arg(opts, *editopts[1:])
        if opts.get(b'local'):
            if not repo:
                raise error.InputError(
                    _(b"can't use --local outside a repository")
                )
            paths = [repo.vfs.join(b'hgrc')]
        elif opts.get(b'global'):
            paths = rcutil.systemrcpath()
        elif opts.get(b'shared'):
            if not repo.shared():
                raise error.InputError(
                    _(b"repository is not shared; can't use --shared")
                )
                if requirements.SHARESAFE_REQUIREMENT not in repo.requirements:
                    raise error.InputError(
                        _(
                            b"share safe feature not unabled; "
                            b"unable to edit shared source repository config"
                        )
                    )

            fp.close()

        editor = ui.geteditor()
        ui.system(
            b"%s \"%s\"" % (editor, f),
            onerr=error.InputError,
            errprefix=_(b"edit failed"),
            blockedtag=b'config_edit',
        )
        return
    ui.pager(b'config')

    cmdutil.check_at_most_one_arg(opts, b'rev', b'bookmark')

    if bookmark:
        if bookmark not in repo._bookmarks:
            raise error.InputError(_(b"bookmark '%s' not found") % bookmark)

        revs = scmutil.bookmarkrevs(repo, bookmark)
    else:
        if not changesets:
            changesets = [b'.']

        repo = scmutil.unhidehashlikerevs(repo, changesets, b'nowarn')
        revs = scmutil.revrange(repo, changesets)

    if not revs:
        raise error.InputError(_(b"export requires at least one changeset"))
    if len(revs) > 1:
        ui.note(_(b'exporting patches:\n'))
    else:
        ui.note(_(b'exporting patch:\n'))

    Returns 0 on success.
    """

    opts = pycompat.byteskwargs(opts)
    if not pats:
        raise error.InputError(_(b'no files specified'))

    m = scmutil.match(repo[None], pats, opts)
    dryrun, interactive = opts.get(b'dry_run'), opts.get(b'interactive')
    uipathfn = scmutil.getuipathfn(repo, legacyrelativevalue=True)
    rejected = cmdutil.forget(

        )
        return cmdutil.abortgraft(ui, repo, graftstate)
    elif opts.get(b'continue'):
        cont = True
        if revs:
            raise error.InputError(_(b"can't specify --continue and revisions"))
        # read in unfinished revisions
        if graftstate.exists():
            statedata = cmdutil.readgraftstate(repo, graftstate)
            if statedata.get(b'date'):
                opts[b'date'] = statedata[b'date']

            revs = [repo[node].rev() for node in nodes]
        else:
            cmdutil.wrongtooltocontinue(repo, _(b'graft'))
    else:
        if not revs:
            raise error.InputError(_(b'no revisions specified'))
        cmdutil.checkunfinished(repo)
        cmdutil.bailifchanged(repo)
        revs = scmutil.revrange(repo, revs)

    skipped = set()

            skipped.add(rev)
    revs = [r for r in revs if r not in skipped]
    if not revs:
        return -1
    if basectx is not None and len(revs) != 1:
        raise error.InputError(_(b'only one revision allowed with --base '))

    # Don't check in the --continue case, in effect retaining --force across
    # --continues. That's because without --force, any revisions we decided to
    # skip would have been filtered out here, so they wouldn't have made their
    # way to the graftstate. With --force, any revisions we would have otherwise

    Returns 0 if successful.
    """

    opts = pycompat.byteskwargs(opts)
    if not repo and not source:
        raise error.InputError(
            _(b"there is no Mercurial repository here (.hg not found)")
        )

    default = not (num or id or branch or tags or bookmarks)
    output = []

    fm = ui.formatter(b'identify', opts)
    fm.startitem()

    if not repo:
        if num or branch or tags:
            raise error.InputError(
                _(b"can't query remote revision number, branch, or tags")
            )
        if not rev and revs:
            rev = revs[0]
        if not rev:

        opts, 'no_commit', ['bypass', 'secret']
    )
    cmdutil.check_incompatible_arguments(opts, 'exact', ['edit', 'prefix'])
    opts = pycompat.byteskwargs(opts)
    if not patch1:
        raise error.InputError(_(b'need at least one patch to import'))

    patches = (patch1,) + patches

    date = opts.get(b'date')
    if date:

    exact = opts.get(b'exact')
    update = not opts.get(b'bypass')
    try:
        sim = float(opts.get(b'similarity') or 0)
    except ValueError:
        raise error.InputError(_(b'similarity must be a number'))
    if sim < 0 or sim > 100:
        raise error.InputError(_(b'similarity must be between 0 and 100'))
    if sim and not update:
        raise error.InputError(_(b'cannot use --similarity with --bypass'))

    base = opts[b"base"]
    msgs = []
    ret = 0

                        )
                        ret = 1
                        break

                if not haspatch:
                    raise error.InputError(_(b'%s: no diffs found') % patchurl)

            if msgs:
                repo.savecommitmessage(b'\n* * *\n'.join(msgs))
        return ret

    """
    opts = pycompat.byteskwargs(opts)
    linerange = opts.get(b'line_range')

    if linerange and not opts.get(b'follow'):
        raise error.InputError(_(b'--line-range requires --follow'))

    if linerange and pats:
        # TODO: take pats as patterns with no line-range filter
        raise error.InputError(
            _(b'FILE arguments are not compatible with --line-range option')
        )

    repo = scmutil.unhidehashlikerevs(repo, opts.get(b'rev'), b'nowarn')
    revs, differ = logcmdutil.getrevs(

    opts = pycompat.byteskwargs(opts)
    fm = ui.formatter(b'manifest', opts)

    if opts.get(b'all'):
        if rev or node:
            raise error.InputError(_(b"can't specify a revision with --all"))

        res = set()
        for rev in repo:
            ctx = repo[rev]
            res |= set(ctx.files())

            fm.write(b"path", b'%s\n', f)
        fm.end()
        return

    if rev and node:
        raise error.InputError(_(b"please specify just one revision"))

    if not node:
        node = rev

    char = {b'l': b'@', b'x': b'*', b'': b'', b't': b'd'}

            raise error.Abort(
                _(b'cannot abort merge with %s in progress') % (state._opname),
                hint=state.hint(),
            )
        if node:
            raise error.InputError(_(b"cannot specify a node with --abort"))
        return hg.abortmerge(repo.ui, repo)

    if opts.get(b'rev') and node:
        raise error.InputError(_(b"please specify just one revision"))
    if not node:
        node = opts.get(b'rev')

    if node:
        ctx = scmutil.revsingle(repo, node)
    else:
        if ui.configbool(b'commands', b'merge.require-rev'):
            raise error.InputError(
                _(
                    b'configuration requires specifying revision to merge '
                    b'with'
                )
            )
        ctx = repo[destutil.destmerge(repo)]

    if ctx.node() is None:
        raise error.InputError(
            _(b'merging with the working copy has no effect')
        )

    if opts.get(b'preview'):
        # find nodes that are ancestors of p2 but not of p1
        p1 = repo[b'.'].node()
        p2 = ctx.node()

    ctx = scmutil.revsingle(repo, rev, None)

    if file_:
        m = scmutil.match(ctx, (file_,), opts)
        if m.anypats() or len(m.files()) != 1:
            raise error.InputError(_(b'can only specify an explicit filename'))
        file_ = m.files()[0]
        filenodes = []
        for cp in ctx.parents():
            if not cp:
                continue
            try:
                filenodes.append(cp.filenode(file_))
            except error.LookupError:
                pass
        if not filenodes:
            raise error.InputError(_(b"'%s' not found in manifest!") % file_)
        p = []
        for fn in filenodes:
            fctx = repo.filectx(file_, fileid=fn)
            p.append(fctx.node())
    else:

    # search for a unique phase argument
    targetphase = None
    for idx, name in enumerate(phases.cmdphasenames):
        if opts[name]:
            if targetphase is not None:
                raise error.InputError(_(b'only one phase can be specified'))
            targetphase = idx

    # look for specified revision
    revs = list(revs)
    revs.extend(opts[b'rev'])

            ui.write(b'%i: %s\n' % (ctx.rev(), ctx.phasestr()))
    else:
        with repo.lock(), repo.transaction(b"phase") as tr:
            # set phase
            if not revs:
                raise error.InputError(_(b'empty revision set'))
            nodes = [repo[r].node() for r in revs]
            # moving revision from public to draft may hide them
            # We have to check result on an unfiltered repository
            unfi = repo.unfiltered()
            getphase = unfi._phasecache.phase

    if ui.configbool(b'commands', b'update.requiredest') and opts.get(
        b'update'
    ):
        msg = _(b'update destination required by configuration')
        hint = _(b'use hg pull followed by hg update DEST')
        raise error.InputError(msg, hint=hint)

    source, branches = hg.parseurl(ui.expandpath(source), opts.get(b'branch'))
    ui.status(_(b'pulling from %s\n') % util.hidepassword(source))
    other = hg.peer(repo, opts, source)
    try:

            remotebookmarks = bookmarks.unhexlifybookmarks(remotebookmarks)
            pullopargs[b'remotebookmarks'] = remotebookmarks
            for b in opts.get(b'bookmark', []):
                b = repo._bookmarks.expandname(b)
                if b not in remotebookmarks:
                    raise error.InputError(
                        _(b'remote bookmark %s not found!') % b
                    )
                nodes.append(remotebookmarks[b])
            for i, rev in enumerate(revs):
                node = fnodes[i].result()
                nodes.append(node)
                if rev == checkout:

    other = hg.peer(repo, opts, dest)

    if revs:
        revs = [repo[r].node() for r in scmutil.revrange(repo, revs)]
        if not revs:
            raise error.InputError(
                _(b"specified revisions evaluate to an empty set"),
                hint=_(b"use different revision arguments"),
            )
    elif path.pushrev:
        # It doesn't make any sense to specify ancestor revisions. So limit
        # to DAG heads to make discovery simpler.
        expr = revsetlang.formatspec(b'heads(%r)', path.pushrev)
        revs = scmutil.revrange(repo, [expr])
        revs = [repo[rev].node() for rev in revs]
        if not revs:
            raise error.InputError(
                _(b'default push revset for path evaluates to an empty set')
            )
    elif ui.configbool(b'commands', b'push.require-revs'):
        raise error.InputError(
            _(b'no revisions specified to push'),
            hint=_(b'did you mean "hg push -r ."?'),
        )

    repo._subtoppath = dest

    opts = pycompat.byteskwargs(opts)
    after, force = opts.get(b'after'), opts.get(b'force')
    dryrun = opts.get(b'dry_run')
    if not pats and not after:
        raise error.InputError(_(b'no files specified'))

    m = scmutil.match(repo[None], pats, opts)
    subrepos = opts.get(b'subrepos')
    uipathfn = scmutil.getuipathfn(repo, legacyrelativevalue=True)
    return cmdutil.remove(

    flaglist = b'all mark unmark list no_status re_merge'.split()
    all, mark, unmark, show, nostatus, remerge = [opts.get(o) for o in flaglist]

    actioncount = len(list(filter(None, [show, mark, unmark, remerge])))
    if actioncount > 1:
        raise error.InputError(_(b"too many actions specified"))
    elif actioncount == 0 and ui.configbool(
        b'commands', b'resolve.explicit-re-merge'
    ):
        hint = _(b'use --mark, --unmark, --list or --re-merge')
        raise error.InputError(_(b'no action specified'), hint=hint)
    if pats and all:
        raise error.InputError(_(b"can't specify --all and patterns"))
    if not (all or pats or show or mark or unmark):
        raise error.InputError(
            _(b'no files or directories specified'),
            hint=b'use --all to re-merge all unresolved files',
        )

    if confirm:

        opts[b"rev"] = cmdutil.finddate(ui, repo, opts[b"date"])

    parent, p2 = repo.dirstate.parents()
    if not opts.get(b'rev') and p2 != nullid:
        # revert after merge is a trap for new users (issue2915)
        raise error.InputError(
            _(b'uncommitted merge with no revision specified'),
            hint=_(b"use 'hg update' or see 'hg help revert'"),
        )

    rev = opts.get(b'rev')

        if p2 != nullid:
            hint = _(
                b"uncommitted merge, use --all to discard all changes,"
                b" or 'hg update -C .' to abort the merge"
            )
            raise error.InputError(msg, hint=hint)
        dirty = any(repo.status())
        node = ctx.node()
        if node != parent:
            if dirty:
                hint = (

                )
        elif dirty:
            hint = _(b"uncommitted changes, use --all to discard all changes")
        else:
            hint = _(b"use --all to revert all files")
        raise error.InputError(msg, hint=hint)

    return cmdutil.revert(ui, repo, ctx, *pats, **pycompat.strkwargs(opts))


@command(

    """

    cmdutil.check_incompatible_arguments(opts, 'stdio', ['cmdserver'])
    opts = pycompat.byteskwargs(opts)
    if opts[b"print_url"] and ui.verbose:
        raise error.InputError(_(b"cannot use --print-url with --verbose"))

    if opts[b"stdio"]:
        if repo is None:
            raise error.RepoError(
                _(b"there is no Mercurial repository here (.hg not found)")

    def checkopt(opt):
        if opts.get(opt):
            for i, allowable in allowables:
                if opts[i] and opt not in allowable:
                    raise error.InputError(
                        _(
                            b"options '--%s' and '--%s' may not be "
                            b"used together"
                        )
                        % (opt, i)
                    )
            return True

    if checkopt(b'cleanup'):
        if pats:
            raise error.InputError(
                _(b"cannot specify names when using '--cleanup'")
            )
        return shelvemod.cleanupcmd(ui, repo)
    elif checkopt(b'delete'):
        return shelvemod.deletecmd(ui, repo, pats)
    elif checkopt(b'list'):
        return shelvemod.listcmd(ui, repo, pats, opts)

        else:
            terse = ui.config(b'commands', b'status.terse')

    if revs and terse:
        msg = _(b'cannot use --terse with --rev')
        raise error.InputError(msg)
    elif change:
        repo = scmutil.unhidehashlikerevs(repo, [change], b'nowarn')
        ctx2 = scmutil.revsingle(repo, change, None)
        ctx1 = ctx2.p1()
    else:

    opts = pycompat.byteskwargs(opts)
    with repo.wlock(), repo.lock():
        rev_ = b"."
        names = [t.strip() for t in (name1,) + names]
        if len(names) != len(set(names)):
            raise error.InputError(_(b'tag names must be unique'))
        for n in names:
            scmutil.checknewlabel(repo, n, b'tag')
            if not n:
                raise error.InputError(
                    _(b'tag names cannot consist entirely of whitespace')
                )
        if opts.get(b'rev'):
            rev_ = opts[b'rev']
        message = opts.get(b'message')

            for n in names:
                if repo.tagtype(n) == b'global':
                    alltags = tagsmod.findglobaltags(ui, repo)
                    if alltags[n][0] == nullid:
                        raise error.InputError(
                            _(b"tag '%s' is already removed") % n
                        )
                if not repo.tagtype(n):
                    raise error.InputError(_(b"tag '%s' does not exist") % n)
                if repo.tagtype(n) != expectedtype:
                    if expectedtype == b'global':
                        raise error.InputError(
                            _(b"tag '%s' is not a global tag") % n
                        )
                    else:
                        raise error.InputError(
                            _(b"tag '%s' is not a local tag") % n
                        )
            rev_ = b'null'
            if not message:
                # we don't translate commit messages
                message = b'Removed tag %s' % b', '.join(names)
        elif not opts.get(b'force'):
            for n in names:
                if n in repo.tags():
                    raise error.InputError(
                        _(b"tag '%s' already exists (use -f to force)") % n
                    )
        if not opts.get(b'local'):
            p1, p2 = repo.dirstate.parents()
            if p2 != nullid:
                raise error.Abort(_(b'uncommitted merge'))
            bheads = repo.branchheads()
            if not opts.get(b'force') and bheads and p1 not in bheads:
                raise error.InputError(
                    _(
                        b'working directory is not at a branch head '
                        b'(use -f to force)'
                    )
                )

        # don't allow tagging the null rev
        if (
            not opts.get(b'remove')
            and scmutil.revsingle(repo, rev_).rev() == nullrev
        ):
            raise error.InputError(_(b"cannot tag null revision"))

        tagsmod.tag(
            repo,
            names,
            node,

    with repo.lock():
        for fname in fnames:
            f = hg.openpath(ui, fname)
            gen = exchange.readbundle(ui, f, fname)
            if isinstance(gen, streamclone.streamcloneapplier):
                raise error.InputError(
                    _(
                        b'packed bundles cannot be applied with '
                        b'"hg unbundle"'
                    ),
                    hint=_(b'use "hg debugapplystreamclonebundle"'),

    date = opts.get('date')
    clean = opts.get('clean')
    check = opts.get('check')
    merge = opts.get('merge')
    if rev and node:
        raise error.InputError(_(b"please specify just one revision"))

    if ui.configbool(b'commands', b'update.requiredest'):
        if not node and not rev and not date:
            raise error.InputError(
                _(b'you must specify a destination'),
                hint=_(b'for example: hg update ".::"'),
            )

    if rev is None or rev == b'':
        rev = node

    if date and rev is not None:
        raise error.InputError(_(b"you can't specify a revision and a date"))

    updatecheck = None
    if check:
        updatecheck = b'abort'
    elif merge: