view mercurial/hgweb/__init__.py @ 50757:19108906abaf stable

extensions: imp module is removed in Python 3.12 - use importlib to load files

imp has been deprecated for a long time, and has finally been removed in Python
3.12 .

imp was only used for loading extensions that has been specified with direct
.py path or path to a package directory. The same use cases can be achieved
quite simple with importlib, , possiby with small changes in corner cases with
undefined behaviour, such as extensions without .py source.

There might also be corner cases and undefined behaviour around use of
sys.modules and reloading.

# 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.


import os

from ..i18n import _

from .. import (
    error,
    pycompat,
)

from ..utils import procutil

# pytype: disable=pyi-error
from . import (
    hgweb_mod,
    hgwebdir_mod,
    server,
)

# pytype: enable=pyi-error


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, str):
        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:
    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)