view mercurial/hgweb/__init__.py @ 47072:4c041c71ec01

revlog: introduce an explicit tracking of what the revlog is about

Since the dawn of time, people have been forced to rely to lossy introspection
of the index filename to determine what the purpose and role of the revlog they
encounter is. This is hacky, error prone, inflexible, abstraction-leaky,
<insert-your-own-complaints-here>.

In f63299ee7e4d Raphaël introduced a new attribute to track this information:
`revlog_kind`. However it is initialized in an odd place and various instances
end up not having it set. In addition is only tracking some of the information
we end up having to introspect in various pieces of code.

So we add a new attribute that holds more data and is more strictly enforced.
This work is done in collaboration with Raphaël.

The `revlog_kind` one will be removed/adapted in the next changeset. We expect
to be able to clean up various existing piece of code and to simplify coming
work around the newer revlog format.

Differential Revision: https://phab.mercurial-scm.org/D10352

# hgweb/__init__.py - web interface to a mercurial repository
#
# Copyright 21 May 2005 - (c) 2005 Jake Edge <[e-mail]>
# Copyright 2005 Olivia Mackall <[e-mail]>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

from __future__ import absolute_import

import os

from ..i18n import _

from .. import (
    error,
    pycompat,
)

from ..utils import procutil

from . import (
    hgweb_mod,
    hgwebdir_mod,
    server,
)


def hgweb(config, name=None, baseui=None):
    """create an hgweb wsgi object

    config can be one of:
    - repo object (single repo view)
    - path to repo (single repo view)
    - path to config file (multi-repo view)
    - dict of virtual:real pairs (multi-repo view)
    - list of virtual:real tuples (multi-repo view)
    """

    if isinstance(config, pycompat.unicode):
        raise error.ProgrammingError(
            b'Mercurial only supports encoded strings: %r' % config
        )
    if (
        (isinstance(config, bytes) and not os.path.isdir(config))
        or isinstance(config, dict)
        or isinstance(config, list)
    ):
        # create a multi-dir interface
        return hgwebdir_mod.hgwebdir(config, baseui=baseui)
    return hgweb_mod.hgweb(config, name=name, baseui=baseui)


def hgwebdir(config, baseui=None):
    return hgwebdir_mod.hgwebdir(config, baseui=baseui)


class httpservice(object):
    def __init__(self, ui, app, opts):
        self.ui = ui
        self.app = app
        self.opts = opts

    def init(self):
        procutil.setsignalhandler()
        self.httpd = server.create_server(self.ui, self.app)

        if (
            self.opts[b'port']
            and not self.ui.verbose
            and not self.opts[b'print_url']
        ):
            return

        if self.httpd.prefix:
            prefix = self.httpd.prefix.strip(b'/') + b'/'
        else:
            prefix = b''

        port = ':%d' % self.httpd.port
        if port == ':80':
            port = ''

        bindaddr = self.httpd.addr
        if bindaddr == '0.0.0.0':
            bindaddr = '*'
        elif ':' in bindaddr:  # IPv6
            bindaddr = '[%s]' % bindaddr

        fqaddr = self.httpd.fqaddr
        if ':' in fqaddr:
            fqaddr = '[%s]' % fqaddr

        url = b'http://%s%s/%s' % (
            pycompat.sysbytes(fqaddr),
            pycompat.sysbytes(port),
            prefix,
        )
        if self.opts[b'print_url']:
            self.ui.write(b'%s\n' % url)
        else:
            if self.opts[b'port']:
                write = self.ui.status
            else:
                write = self.ui.write
            write(
                _(b'listening at %s (bound to %s:%d)\n')
                % (url, pycompat.sysbytes(bindaddr), self.httpd.port)
            )
        self.ui.flush()  # avoid buffering of status message

    def run(self):
        self.httpd.serve_forever()


def createapp(baseui, repo, webconf):
    if webconf:
        return hgwebdir_mod.hgwebdir(webconf, baseui=baseui)
    else:
        if not repo:
            raise error.RepoError(
                _(b"there is no Mercurial repository here (.hg not found)")
            )
        return hgweb_mod.hgweb(repo, baseui=baseui)