Mercurial > hg
annotate contrib/phabricator.py @ 33268:85391b95961d
phabricator: avoid calling differential.getcommitmessage
Previously, we call differential.getcommitmessage API to get commit
messages. Now we read that from "Differential Revision" object fetched
via "differential.query" API.
This removes one API call per patch.
author | Jun Wu <quark@fb.com> |
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date | Tue, 04 Jul 2017 16:36:48 -0700 |
parents | dba9f88659a3 |
children | ead6749354e1 |
rev | line source |
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33198 | 1 # phabricator.py - simple Phabricator integration |
2 # | |
3 # Copyright 2017 Facebook, Inc. | |
4 # | |
5 # This software may be used and distributed according to the terms of the | |
6 # GNU General Public License version 2 or any later version. | |
7 """simple Phabricator integration | |
8 | |
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9 This extension provides a ``phabsend`` command which sends a stack of |
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10 changesets to Phabricator without amending commit messages, and a ``phabread`` |
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11 command which prints a stack of revisions in a format suitable |
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12 for :hg:`import`. |
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13 |
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14 By default, Phabricator requires ``Test Plan`` which might prevent some |
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15 changeset from being sent. The requirement could be disabled by changing |
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16 ``differential.require-test-plan-field`` config server side. |
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17 |
33198 | 18 Config:: |
19 | |
20 [phabricator] | |
21 # Phabricator URL | |
22 url = https://phab.example.com/ | |
23 | |
24 # API token. Get it from https://$HOST/conduit/login/ | |
25 token = cli-xxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
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26 |
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27 # Repo callsign. If a repo has a URL https://$HOST/diffusion/FOO, then its |
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28 # callsign is "FOO". |
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29 callsign = FOO |
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30 |
33198 | 31 """ |
32 | |
33 from __future__ import absolute_import | |
34 | |
35 import json | |
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36 import re |
33198 | 37 |
38 from mercurial.i18n import _ | |
39 from mercurial import ( | |
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40 encoding, |
33198 | 41 error, |
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42 mdiff, |
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43 obsolete, |
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44 patch, |
33198 | 45 registrar, |
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46 scmutil, |
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47 tags, |
33198 | 48 url as urlmod, |
49 util, | |
50 ) | |
51 | |
52 cmdtable = {} | |
53 command = registrar.command(cmdtable) | |
54 | |
55 def urlencodenested(params): | |
56 """like urlencode, but works with nested parameters. | |
57 | |
58 For example, if params is {'a': ['b', 'c'], 'd': {'e': 'f'}}, it will be | |
59 flattened to {'a[0]': 'b', 'a[1]': 'c', 'd[e]': 'f'} and then passed to | |
60 urlencode. Note: the encoding is consistent with PHP's http_build_query. | |
61 """ | |
62 flatparams = util.sortdict() | |
63 def process(prefix, obj): | |
64 items = {list: enumerate, dict: lambda x: x.items()}.get(type(obj)) | |
65 if items is None: | |
66 flatparams[prefix] = obj | |
67 else: | |
68 for k, v in items(obj): | |
69 if prefix: | |
70 process('%s[%s]' % (prefix, k), v) | |
71 else: | |
72 process(k, v) | |
73 process('', params) | |
74 return util.urlreq.urlencode(flatparams) | |
75 | |
76 def readurltoken(repo): | |
77 """return conduit url, token and make sure they exist | |
78 | |
79 Currently read from [phabricator] config section. In the future, it might | |
80 make sense to read from .arcconfig and .arcrc as well. | |
81 """ | |
82 values = [] | |
83 section = 'phabricator' | |
84 for name in ['url', 'token']: | |
85 value = repo.ui.config(section, name) | |
86 if not value: | |
87 raise error.Abort(_('config %s.%s is required') % (section, name)) | |
88 values.append(value) | |
89 return values | |
90 | |
91 def callconduit(repo, name, params): | |
92 """call Conduit API, params is a dict. return json.loads result, or None""" | |
93 host, token = readurltoken(repo) | |
94 url, authinfo = util.url('/'.join([host, 'api', name])).authinfo() | |
95 urlopener = urlmod.opener(repo.ui, authinfo) | |
96 repo.ui.debug('Conduit Call: %s %s\n' % (url, params)) | |
97 params = params.copy() | |
98 params['api.token'] = token | |
99 request = util.urlreq.request(url, data=urlencodenested(params)) | |
100 body = urlopener.open(request).read() | |
101 repo.ui.debug('Conduit Response: %s\n' % body) | |
102 parsed = json.loads(body) | |
103 if parsed.get(r'error_code'): | |
104 msg = (_('Conduit Error (%s): %s') | |
105 % (parsed[r'error_code'], parsed[r'error_info'])) | |
106 raise error.Abort(msg) | |
107 return parsed[r'result'] | |
108 | |
109 @command('debugcallconduit', [], _('METHOD')) | |
110 def debugcallconduit(ui, repo, name): | |
111 """call Conduit API | |
112 | |
113 Call parameters are read from stdin as a JSON blob. Result will be written | |
114 to stdout as a JSON blob. | |
115 """ | |
116 params = json.loads(ui.fin.read()) | |
117 result = callconduit(repo, name, params) | |
118 s = json.dumps(result, sort_keys=True, indent=2, separators=(',', ': ')) | |
119 ui.write('%s\n' % s) | |
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120 |
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121 def getrepophid(repo): |
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122 """given callsign, return repository PHID or None""" |
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123 # developer config: phabricator.repophid |
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124 repophid = repo.ui.config('phabricator', 'repophid') |
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125 if repophid: |
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126 return repophid |
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127 callsign = repo.ui.config('phabricator', 'callsign') |
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128 if not callsign: |
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129 return None |
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130 query = callconduit(repo, 'diffusion.repository.search', |
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131 {'constraints': {'callsigns': [callsign]}}) |
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132 if len(query[r'data']) == 0: |
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133 return None |
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134 repophid = encoding.strtolocal(query[r'data'][0][r'phid']) |
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135 repo.ui.setconfig('phabricator', 'repophid', repophid) |
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136 return repophid |
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137 |
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138 _differentialrevisiontagre = re.compile('\AD([1-9][0-9]*)\Z') |
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139 _differentialrevisiondescre = re.compile( |
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140 '^Differential Revision:.*D([1-9][0-9]*)$', re.M) |
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141 |
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142 def getmapping(ctx): |
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143 """return (node, associated Differential Revision ID) or (None, None) |
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144 |
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145 Examines all precursors and their tags. Tags with format like "D1234" are |
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146 considered a match and the node with that tag, and the number after "D" |
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147 (ex. 1234) will be returned. |
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148 |
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149 If tags are not found, examine commit message. The "Differential Revision:" |
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150 line could associate this changeset to a Differential Revision. |
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151 """ |
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152 unfi = ctx.repo().unfiltered() |
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153 nodemap = unfi.changelog.nodemap |
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154 |
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155 # Check tags like "D123" |
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156 for n in obsolete.allprecursors(unfi.obsstore, [ctx.node()]): |
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157 if n in nodemap: |
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158 for tag in unfi.nodetags(n): |
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159 m = _differentialrevisiontagre.match(tag) |
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160 if m: |
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161 return n, int(m.group(1)) |
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162 |
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163 # Check commit message |
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164 m = _differentialrevisiondescre.search(ctx.description()) |
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165 if m: |
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166 return None, int(m.group(1)) |
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167 |
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168 return None, None |
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169 |
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170 def getdiff(ctx, diffopts): |
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171 """plain-text diff without header (user, commit message, etc)""" |
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172 output = util.stringio() |
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173 for chunk, _label in patch.diffui(ctx.repo(), ctx.p1().node(), ctx.node(), |
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174 None, opts=diffopts): |
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175 output.write(chunk) |
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176 return output.getvalue() |
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177 |
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178 def creatediff(ctx): |
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179 """create a Differential Diff""" |
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180 repo = ctx.repo() |
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181 repophid = getrepophid(repo) |
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182 # Create a "Differential Diff" via "differential.createrawdiff" API |
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183 params = {'diff': getdiff(ctx, mdiff.diffopts(git=True, context=32767))} |
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184 if repophid: |
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185 params['repositoryPHID'] = repophid |
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186 diff = callconduit(repo, 'differential.createrawdiff', params) |
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187 if not diff: |
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188 raise error.Abort(_('cannot create diff for %s') % ctx) |
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189 return diff |
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190 |
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191 def writediffproperties(ctx, diff): |
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192 """write metadata to diff so patches could be applied losslessly""" |
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193 params = { |
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194 'diff_id': diff[r'id'], |
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195 'name': 'hg:meta', |
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196 'data': json.dumps({ |
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197 'user': ctx.user(), |
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198 'date': '%d %d' % ctx.date(), |
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199 'node': ctx.hex(), |
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200 'parent': ctx.p1().hex(), |
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201 }), |
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202 } |
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203 callconduit(ctx.repo(), 'differential.setdiffproperty', params) |
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204 |
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205 def createdifferentialrevision(ctx, revid=None, parentrevid=None, oldnode=None): |
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206 """create or update a Differential Revision |
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207 |
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208 If revid is None, create a new Differential Revision, otherwise update |
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209 revid. If parentrevid is not None, set it as a dependency. |
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210 |
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211 If oldnode is not None, check if the patch content (without commit message |
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212 and metadata) has changed before creating another diff. |
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213 """ |
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214 repo = ctx.repo() |
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215 if oldnode: |
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216 diffopts = mdiff.diffopts(git=True, context=1) |
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217 oldctx = repo.unfiltered()[oldnode] |
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218 neednewdiff = (getdiff(ctx, diffopts) != getdiff(oldctx, diffopts)) |
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219 else: |
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220 neednewdiff = True |
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221 |
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222 transactions = [] |
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223 if neednewdiff: |
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224 diff = creatediff(ctx) |
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225 writediffproperties(ctx, diff) |
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226 transactions.append({'type': 'update', 'value': diff[r'phid']}) |
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227 |
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228 # Use a temporary summary to set dependency. There might be better ways but |
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229 # I cannot find them for now. But do not do that if we are updating an |
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230 # existing revision (revid is not None) since that introduces visible |
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231 # churns (someone edited "Summary" twice) on the web page. |
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232 if parentrevid and revid is None: |
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233 summary = 'Depends on D%s' % parentrevid |
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234 transactions += [{'type': 'summary', 'value': summary}, |
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235 {'type': 'summary', 'value': ' '}] |
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236 |
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237 # Parse commit message and update related fields. |
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238 desc = ctx.description() |
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239 info = callconduit(repo, 'differential.parsecommitmessage', |
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240 {'corpus': desc}) |
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241 for k, v in info[r'fields'].items(): |
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242 if k in ['title', 'summary', 'testPlan']: |
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243 transactions.append({'type': k, 'value': v}) |
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244 |
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245 params = {'transactions': transactions} |
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246 if revid is not None: |
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247 # Update an existing Differential Revision |
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248 params['objectIdentifier'] = revid |
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249 |
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250 revision = callconduit(repo, 'differential.revision.edit', params) |
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251 if not revision: |
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252 raise error.Abort(_('cannot create revision for %s') % ctx) |
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253 |
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254 return revision |
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255 |
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256 @command('phabsend', |
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257 [('r', 'rev', [], _('revisions to send'), _('REV'))], |
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258 _('REV [OPTIONS]')) |
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259 def phabsend(ui, repo, *revs, **opts): |
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260 """upload changesets to Phabricator |
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261 |
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262 If there are multiple revisions specified, they will be send as a stack |
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263 with a linear dependencies relationship using the order specified by the |
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264 revset. |
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265 |
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266 For the first time uploading changesets, local tags will be created to |
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267 maintain the association. After the first time, phabsend will check |
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268 obsstore and tags information so it can figure out whether to update an |
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269 existing Differential Revision, or create a new one. |
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270 """ |
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271 revs = list(revs) + opts.get('rev', []) |
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272 revs = scmutil.revrange(repo, revs) |
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273 |
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274 if not revs: |
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275 raise error.Abort(_('phabsend requires at least one changeset')) |
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276 |
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277 # Send patches one by one so we know their Differential Revision IDs and |
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278 # can provide dependency relationship |
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279 lastrevid = None |
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280 for rev in revs: |
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281 ui.debug('sending rev %d\n' % rev) |
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282 ctx = repo[rev] |
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283 |
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284 # Get Differential Revision ID |
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285 oldnode, revid = getmapping(ctx) |
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286 if oldnode != ctx.node(): |
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287 # Create or update Differential Revision |
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288 revision = createdifferentialrevision(ctx, revid, lastrevid, |
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289 oldnode) |
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290 newrevid = int(revision[r'object'][r'id']) |
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291 if revid: |
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292 action = _('updated') |
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293 else: |
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294 action = _('created') |
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295 |
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296 # Create a local tag to note the association |
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297 tagname = 'D%d' % newrevid |
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298 tags.tag(repo, tagname, ctx.node(), message=None, user=None, |
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299 date=None, local=True) |
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300 else: |
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301 # Nothing changed. But still set "newrevid" so the next revision |
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302 # could depend on this one. |
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303 newrevid = revid |
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304 action = _('skipped') |
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305 |
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306 ui.write(_('D%s: %s - %s: %s\n') % (newrevid, action, ctx, |
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307 ctx.description().split('\n')[0])) |
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308 lastrevid = newrevid |
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309 |
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310 # Map from "hg:meta" keys to header understood by "hg import". The order is |
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311 # consistent with "hg export" output. |
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312 _metanamemap = util.sortdict([(r'user', 'User'), (r'date', 'Date'), |
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313 (r'node', 'Node ID'), (r'parent', 'Parent ')]) |
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314 |
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315 def querydrev(repo, params, stack=False): |
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316 """return a list of "Differential Revision" dicts |
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317 |
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318 params is the input of "differential.query" API, and is expected to match |
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319 just a single Differential Revision. |
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320 |
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321 A "Differential Revision dict" looks like: |
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322 |
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323 { |
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324 "id": "2", |
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325 "phid": "PHID-DREV-672qvysjcczopag46qty", |
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326 "title": "example", |
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327 "uri": "https://phab.example.com/D2", |
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328 "dateCreated": "1499181406", |
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329 "dateModified": "1499182103", |
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330 "authorPHID": "PHID-USER-tv3ohwc4v4jeu34otlye", |
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331 "status": "0", |
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332 "statusName": "Needs Review", |
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333 "properties": [], |
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334 "branch": null, |
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335 "summary": "", |
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336 "testPlan": "", |
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337 "lineCount": "2", |
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338 "activeDiffPHID": "PHID-DIFF-xoqnjkobbm6k4dk6hi72", |
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339 "diffs": [ |
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340 "3", |
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341 "4", |
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342 ], |
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343 "commits": [], |
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344 "reviewers": [], |
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345 "ccs": [], |
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346 "hashes": [], |
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347 "auxiliary": { |
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348 "phabricator:projects": [], |
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349 "phabricator:depends-on": [ |
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350 "PHID-DREV-gbapp366kutjebt7agcd" |
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351 ] |
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352 }, |
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353 "repositoryPHID": "PHID-REPO-hub2hx62ieuqeheznasv", |
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354 "sourcePath": null |
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355 } |
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356 |
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357 If stack is True, return a list of "Differential Revision dict"s in an |
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358 order that the latter ones depend on the former ones. Otherwise, return a |
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359 list of a unique "Differential Revision dict". |
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360 """ |
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361 result = [] |
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362 queue = [params] |
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363 while queue: |
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364 params = queue.pop() |
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365 drevs = callconduit(repo, 'differential.query', params) |
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366 if len(drevs) != 1: |
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367 raise error.Abort(_('cannot get Differential Revision %r') % params) |
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368 drev = drevs[0] |
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369 result.append(drev) |
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370 if stack: |
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371 auxiliary = drev.get(r'auxiliary', {}) |
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372 depends = auxiliary.get(r'phabricator:depends-on', []) |
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373 for phid in depends: |
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374 queue.append({'phids': [phid]}) |
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375 result.reverse() |
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376 return result |
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377 |
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378 def getdescfromdrev(drev): |
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379 """get description (commit message) from "Differential Revision" |
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380 |
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381 This is similar to differential.getcommitmessage API. But we only care |
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382 about limited fields: title, summary, test plan, and URL. |
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383 """ |
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384 title = drev[r'title'] |
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385 summary = drev[r'summary'].rstrip() |
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386 testplan = drev[r'testPlan'].rstrip() |
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387 if testplan: |
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388 testplan = 'Test Plan:\n%s' % testplan |
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389 uri = 'Differential Revision: %s' % drev[r'uri'] |
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390 return '\n\n'.join(filter(None, [title, summary, testplan, uri])) |
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391 |
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392 def readpatch(repo, params, write, stack=False): |
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393 """generate plain-text patch readable by 'hg import' |
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394 |
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395 write is usually ui.write. params is passed to "differential.query". If |
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396 stack is True, also write dependent patches. |
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397 """ |
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398 # Differential Revisions |
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399 drevs = querydrev(repo, params, stack) |
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400 |
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401 # Prefetch hg:meta property for all diffs |
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402 diffids = sorted(set(max(int(v) for v in drev[r'diffs']) for drev in drevs)) |
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403 diffs = callconduit(repo, 'differential.querydiffs', {'ids': diffids}) |
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404 |
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405 # Generate patch for each drev |
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406 for drev in drevs: |
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407 repo.ui.note(_('reading D%s\n') % drev[r'id']) |
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408 |
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409 diffid = max(int(v) for v in drev[r'diffs']) |
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410 body = callconduit(repo, 'differential.getrawdiff', {'diffID': diffid}) |
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411 desc = getdescfromdrev(drev) |
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412 header = '# HG changeset patch\n' |
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413 |
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414 # Try to preserve metadata from hg:meta property. Write hg patch |
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415 # headers that can be read by the "import" command. See patchheadermap |
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416 # and extract in mercurial/patch.py for supported headers. |
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417 props = diffs[str(diffid)][r'properties'] # could be empty list or dict |
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418 if props and r'hg:meta' in props: |
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419 meta = props[r'hg:meta'] |
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420 for k in _metanamemap.keys(): |
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421 if k in meta: |
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422 header += '# %s %s\n' % (_metanamemap[k], meta[k]) |
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423 |
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424 write(('%s%s\n%s') % (header, desc, body)) |
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425 |
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426 @command('phabread', |
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427 [('', 'stack', False, _('read dependencies'))], |
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428 _('REVID [OPTIONS]')) |
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429 def phabread(ui, repo, revid, **opts): |
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430 """print patches from Phabricator suitable for importing |
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431 |
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432 REVID could be a Differential Revision identity, like ``D123``, or just the |
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433 number ``123``, or a full URL like ``https://phab.example.com/D123``. |
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434 |
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435 If --stack is given, follow dependencies information and read all patches. |
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436 """ |
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437 try: |
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438 revid = int(revid.split('/')[-1].replace('D', '')) |
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439 except ValueError: |
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440 raise error.Abort(_('invalid Revision ID: %s') % revid) |
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441 readpatch(repo, {'ids': [revid]}, ui.write, opts.get('stack')) |