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# phabricator.py - simple Phabricator integration
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#
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# Copyright 2017 Facebook, Inc.
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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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"""simple Phabricator integration
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Config::
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[phabricator]
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# Phabricator URL
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url = https://phab.example.com/
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# API token. Get it from https://$HOST/conduit/login/
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token = cli-xxxxxxxxxxxxxxxxxxxxxxxxxxxx
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"""
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from __future__ import absolute_import
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import json
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from mercurial.i18n import _
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from mercurial import (
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error,
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registrar,
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url as urlmod,
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util,
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)
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cmdtable = {}
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command = registrar.command(cmdtable)
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def urlencodenested(params):
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"""like urlencode, but works with nested parameters.
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For example, if params is {'a': ['b', 'c'], 'd': {'e': 'f'}}, it will be
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flattened to {'a[0]': 'b', 'a[1]': 'c', 'd[e]': 'f'} and then passed to
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urlencode. Note: the encoding is consistent with PHP's http_build_query.
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"""
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flatparams = util.sortdict()
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def process(prefix, obj):
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items = {list: enumerate, dict: lambda x: x.items()}.get(type(obj))
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if items is None:
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flatparams[prefix] = obj
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else:
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for k, v in items(obj):
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if prefix:
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process('%s[%s]' % (prefix, k), v)
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else:
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process(k, v)
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process('', params)
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return util.urlreq.urlencode(flatparams)
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def readurltoken(repo):
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"""return conduit url, token and make sure they exist
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Currently read from [phabricator] config section. In the future, it might
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make sense to read from .arcconfig and .arcrc as well.
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"""
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values = []
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section = 'phabricator'
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for name in ['url', 'token']:
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value = repo.ui.config(section, name)
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if not value:
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raise error.Abort(_('config %s.%s is required') % (section, name))
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values.append(value)
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return values
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def callconduit(repo, name, params):
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"""call Conduit API, params is a dict. return json.loads result, or None"""
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host, token = readurltoken(repo)
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url, authinfo = util.url('/'.join([host, 'api', name])).authinfo()
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urlopener = urlmod.opener(repo.ui, authinfo)
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repo.ui.debug('Conduit Call: %s %s\n' % (url, params))
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params = params.copy()
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params['api.token'] = token
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request = util.urlreq.request(url, data=urlencodenested(params))
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body = urlopener.open(request).read()
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repo.ui.debug('Conduit Response: %s\n' % body)
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parsed = json.loads(body)
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if parsed.get(r'error_code'):
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msg = (_('Conduit Error (%s): %s')
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% (parsed[r'error_code'], parsed[r'error_info']))
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raise error.Abort(msg)
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return parsed[r'result']
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@command('debugcallconduit', [], _('METHOD'))
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def debugcallconduit(ui, repo, name):
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"""call Conduit API
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Call parameters are read from stdin as a JSON blob. Result will be written
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to stdout as a JSON blob.
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"""
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params = json.loads(ui.fin.read())
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result = callconduit(repo, name, params)
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s = json.dumps(result, sort_keys=True, indent=2, separators=(',', ': '))
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ui.write('%s\n' % s)
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