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1 | # phabricator.py - simple Phabricator integration | |||
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2 | # | |||
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3 | # Copyright 2017 Facebook, Inc. | |||
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4 | # | |||
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5 | # This software may be used and distributed according to the terms of the | |||
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6 | # GNU General Public License version 2 or any later version. | |||
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7 | """simple Phabricator integration | |||
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8 | ||||
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9 | Config:: | |||
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10 | ||||
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11 | [phabricator] | |||
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12 | # Phabricator URL | |||
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13 | url = https://phab.example.com/ | |||
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14 | ||||
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15 | # API token. Get it from https://$HOST/conduit/login/ | |||
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16 | token = cli-xxxxxxxxxxxxxxxxxxxxxxxxxxxx | |||
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17 | """ | |||
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18 | ||||
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19 | from __future__ import absolute_import | |||
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20 | ||||
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21 | import json | |||
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22 | ||||
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23 | from mercurial.i18n import _ | |||
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24 | from mercurial import ( | |||
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25 | error, | |||
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26 | registrar, | |||
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27 | url as urlmod, | |||
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28 | util, | |||
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29 | ) | |||
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30 | ||||
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31 | cmdtable = {} | |||
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32 | command = registrar.command(cmdtable) | |||
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33 | ||||
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34 | def urlencodenested(params): | |||
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35 | """like urlencode, but works with nested parameters. | |||
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36 | ||||
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37 | For example, if params is {'a': ['b', 'c'], 'd': {'e': 'f'}}, it will be | |||
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38 | flattened to {'a[0]': 'b', 'a[1]': 'c', 'd[e]': 'f'} and then passed to | |||
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39 | urlencode. Note: the encoding is consistent with PHP's http_build_query. | |||
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40 | """ | |||
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41 | flatparams = util.sortdict() | |||
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42 | def process(prefix, obj): | |||
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43 | items = {list: enumerate, dict: lambda x: x.items()}.get(type(obj)) | |||
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44 | if items is None: | |||
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45 | flatparams[prefix] = obj | |||
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46 | else: | |||
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47 | for k, v in items(obj): | |||
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48 | if prefix: | |||
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49 | process('%s[%s]' % (prefix, k), v) | |||
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50 | else: | |||
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51 | process(k, v) | |||
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52 | process('', params) | |||
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53 | return util.urlreq.urlencode(flatparams) | |||
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54 | ||||
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55 | def readurltoken(repo): | |||
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56 | """return conduit url, token and make sure they exist | |||
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57 | ||||
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58 | Currently read from [phabricator] config section. In the future, it might | |||
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59 | make sense to read from .arcconfig and .arcrc as well. | |||
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60 | """ | |||
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61 | values = [] | |||
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62 | section = 'phabricator' | |||
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63 | for name in ['url', 'token']: | |||
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64 | value = repo.ui.config(section, name) | |||
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65 | if not value: | |||
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66 | raise error.Abort(_('config %s.%s is required') % (section, name)) | |||
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67 | values.append(value) | |||
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68 | return values | |||
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69 | ||||
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70 | def callconduit(repo, name, params): | |||
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71 | """call Conduit API, params is a dict. return json.loads result, or None""" | |||
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72 | host, token = readurltoken(repo) | |||
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73 | url, authinfo = util.url('/'.join([host, 'api', name])).authinfo() | |||
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74 | urlopener = urlmod.opener(repo.ui, authinfo) | |||
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75 | repo.ui.debug('Conduit Call: %s %s\n' % (url, params)) | |||
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76 | params = params.copy() | |||
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77 | params['api.token'] = token | |||
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78 | request = util.urlreq.request(url, data=urlencodenested(params)) | |||
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79 | body = urlopener.open(request).read() | |||
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80 | repo.ui.debug('Conduit Response: %s\n' % body) | |||
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81 | parsed = json.loads(body) | |||
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82 | if parsed.get(r'error_code'): | |||
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83 | msg = (_('Conduit Error (%s): %s') | |||
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84 | % (parsed[r'error_code'], parsed[r'error_info'])) | |||
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85 | raise error.Abort(msg) | |||
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86 | return parsed[r'result'] | |||
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87 | ||||
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88 | @command('debugcallconduit', [], _('METHOD')) | |||
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89 | def debugcallconduit(ui, repo, name): | |||
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90 | """call Conduit API | |||
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91 | ||||
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92 | Call parameters are read from stdin as a JSON blob. Result will be written | |||
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93 | to stdout as a JSON blob. | |||
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94 | """ | |||
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95 | params = json.loads(ui.fin.read()) | |||
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96 | result = callconduit(repo, name, params) | |||
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97 | s = json.dumps(result, sort_keys=True, indent=2, separators=(',', ': ')) | |||
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98 | ui.write('%s\n' % s) |
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