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1 | # Copyright 2012 Logilab SA <contact@logilab.fr> |
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1 | # Copyright 2012 Logilab SA <contact@logilab.fr> | |
2 | # Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
|
2 | # Pierre-Yves David <pierre-yves.david@ens-lyon.org> | |
3 | # Octobus <contact@octobus.net> |
|
3 | # Octobus <contact@octobus.net> | |
4 | # |
|
4 | # | |
5 | # This software may be used and distributed according to the terms of the |
|
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. |
|
6 | # GNU General Public License version 2 or any later version. | |
7 |
|
7 | |||
8 | ##################################################################### |
|
8 | ##################################################################### | |
9 | ### Extension helper ### |
|
9 | ### Extension helper ### | |
10 | ##################################################################### |
|
10 | ##################################################################### | |
11 |
|
11 | |||
12 | from __future__ import absolute_import |
|
12 | from __future__ import absolute_import | |
13 |
|
13 | |||
14 | from . import ( |
|
14 | from . import ( | |
15 | commands, |
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15 | commands, | |
16 | error, |
|
16 | error, | |
17 | extensions, |
|
17 | extensions, | |
18 | registrar, |
|
18 | registrar, | |
19 | ) |
|
19 | ) | |
20 |
|
20 | |||
21 | class exthelper(object): |
|
21 | class exthelper(object): | |
22 | """Helper for modular extension setup |
|
22 | """Helper for modular extension setup | |
23 |
|
23 | |||
24 | A single helper should be instantiated for each module of an |
|
24 | A single helper should be instantiated for each module of an | |
25 | extension, where a command or function needs to be wrapped, or a |
|
25 | extension, where a command or function needs to be wrapped, or a | |
26 | command, extension hook, fileset, revset or template needs to be |
|
26 | command, extension hook, fileset, revset or template needs to be | |
27 | registered. Helper methods are then used as decorators for |
|
27 | registered. Helper methods are then used as decorators for | |
28 | these various purposes. If an extension spans multiple modules, |
|
28 | these various purposes. If an extension spans multiple modules, | |
29 | all helper instances should be merged in the main module. |
|
29 | all helper instances should be merged in the main module. | |
30 |
|
30 | |||
31 | All decorators return the original function and may be chained. |
|
31 | All decorators return the original function and may be chained. | |
32 |
|
32 | |||
33 | Aside from the helper functions with examples below, several |
|
33 | Aside from the helper functions with examples below, several | |
34 | registrar method aliases are available for adding commands, |
|
34 | registrar method aliases are available for adding commands, | |
35 | configitems, filesets, revsets, and templates. Simply decorate |
|
35 | configitems, filesets, revsets, and templates. Simply decorate | |
36 | the appropriate methods, and assign the corresponding exthelper |
|
36 | the appropriate methods, and assign the corresponding exthelper | |
37 | variable to a module level variable of the extension. The |
|
37 | variable to a module level variable of the extension. The | |
38 | extension loading mechanism will handle the rest. |
|
38 | extension loading mechanism will handle the rest. | |
39 |
|
39 | |||
40 | example:: |
|
40 | example:: | |
41 |
|
41 | |||
42 | # ext.py |
|
42 | # ext.py | |
43 | eh = exthelper.exthelper() |
|
43 | eh = exthelper.exthelper() | |
44 |
|
44 | |||
45 | # As needed: |
|
45 | # As needed: | |
46 | cmdtable = eh.cmdtable |
|
46 | cmdtable = eh.cmdtable | |
47 | configtable = eh.configtable |
|
47 | configtable = eh.configtable | |
48 | filesetpredicate = eh.filesetpredicate |
|
48 | filesetpredicate = eh.filesetpredicate | |
49 | revsetpredicate = eh.revsetpredicate |
|
49 | revsetpredicate = eh.revsetpredicate | |
50 | templatekeyword = eh.templatekeyword |
|
50 | templatekeyword = eh.templatekeyword | |
51 |
|
51 | |||
52 | @eh.command('mynewcommand', |
|
52 | @eh.command('mynewcommand', | |
53 | [('r', 'rev', [], _('operate on these revisions'))], |
|
53 | [('r', 'rev', [], _('operate on these revisions'))], | |
54 | _('-r REV...'), |
|
54 | _('-r REV...'), | |
55 | helpcategory=command.CATEGORY_XXX) |
|
55 | helpcategory=command.CATEGORY_XXX) | |
56 | def newcommand(ui, repo, *revs, **opts): |
|
56 | def newcommand(ui, repo, *revs, **opts): | |
57 | # implementation goes here |
|
57 | # implementation goes here | |
58 |
|
58 | |||
59 | eh.configitem('experimental', 'foo', |
|
59 | eh.configitem('experimental', 'foo', | |
60 | default=False, |
|
60 | default=False, | |
61 | ) |
|
61 | ) | |
62 |
|
62 | |||
63 | @eh.filesetpredicate('lfs()') |
|
63 | @eh.filesetpredicate('lfs()') | |
64 | def filesetbabar(mctx, x): |
|
64 | def filesetbabar(mctx, x): | |
65 | return mctx.predicate(...) |
|
65 | return mctx.predicate(...) | |
66 |
|
66 | |||
67 | @eh.revsetpredicate('hidden') |
|
67 | @eh.revsetpredicate('hidden') | |
68 | def revsetbabar(repo, subset, x): |
|
68 | def revsetbabar(repo, subset, x): | |
69 | args = revset.getargs(x, 0, 0, 'babar accept no argument') |
|
69 | args = revset.getargs(x, 0, 0, 'babar accept no argument') | |
70 | return [r for r in subset if 'babar' in repo[r].description()] |
|
70 | return [r for r in subset if 'babar' in repo[r].description()] | |
71 |
|
71 | |||
72 | @eh.templatekeyword('babar') |
|
72 | @eh.templatekeyword('babar') | |
73 | def kwbabar(ctx): |
|
73 | def kwbabar(ctx): | |
74 | return 'babar' |
|
74 | return 'babar' | |
75 | """ |
|
75 | """ | |
76 |
|
76 | |||
77 | def __init__(self): |
|
77 | def __init__(self): | |
78 | self._uipopulatecallables = [] |
|
78 | self._uipopulatecallables = [] | |
79 | self._uicallables = [] |
|
79 | self._uicallables = [] | |
80 | self._extcallables = [] |
|
80 | self._extcallables = [] | |
81 | self._repocallables = [] |
|
81 | self._repocallables = [] | |
82 | self._commandwrappers = [] |
|
82 | self._commandwrappers = [] | |
83 | self._extcommandwrappers = [] |
|
83 | self._extcommandwrappers = [] | |
84 | self._functionwrappers = [] |
|
84 | self._functionwrappers = [] | |
85 | self._duckpunchers = [] |
|
85 | self._duckpunchers = [] | |
86 | self.cmdtable = {} |
|
86 | self.cmdtable = {} | |
87 | self.command = registrar.command(self.cmdtable) |
|
87 | self.command = registrar.command(self.cmdtable) | |
88 | self.configtable = {} |
|
88 | self.configtable = {} | |
89 | self.configitem = registrar.configitem(self.configtable) |
|
89 | self.configitem = registrar.configitem(self.configtable) | |
90 | self.filesetpredicate = registrar.filesetpredicate() |
|
90 | self.filesetpredicate = registrar.filesetpredicate() | |
91 | self.revsetpredicate = registrar.revsetpredicate() |
|
91 | self.revsetpredicate = registrar.revsetpredicate() | |
92 | self.templatekeyword = registrar.templatekeyword() |
|
92 | self.templatekeyword = registrar.templatekeyword() | |
93 |
|
93 | |||
94 | def merge(self, other): |
|
94 | def merge(self, other): | |
95 | self._uicallables.extend(other._uicallables) |
|
95 | self._uicallables.extend(other._uicallables) | |
96 | self._uipopulatecallables.extend(other._uipopulatecallables) |
|
96 | self._uipopulatecallables.extend(other._uipopulatecallables) | |
97 | self._extcallables.extend(other._extcallables) |
|
97 | self._extcallables.extend(other._extcallables) | |
98 | self._repocallables.extend(other._repocallables) |
|
98 | self._repocallables.extend(other._repocallables) | |
99 |
self.filesetpredicate._ |
|
99 | self.filesetpredicate._merge(other.filesetpredicate) | |
100 |
self.revsetpredicate._ |
|
100 | self.revsetpredicate._merge(other.revsetpredicate) | |
101 |
self.templatekeyword._ |
|
101 | self.templatekeyword._merge(other.templatekeyword) | |
102 | self._commandwrappers.extend(other._commandwrappers) |
|
102 | self._commandwrappers.extend(other._commandwrappers) | |
103 | self._extcommandwrappers.extend(other._extcommandwrappers) |
|
103 | self._extcommandwrappers.extend(other._extcommandwrappers) | |
104 | self._functionwrappers.extend(other._functionwrappers) |
|
104 | self._functionwrappers.extend(other._functionwrappers) | |
105 | self._duckpunchers.extend(other._duckpunchers) |
|
105 | self._duckpunchers.extend(other._duckpunchers) | |
106 | self.cmdtable.update(other.cmdtable) |
|
106 | self.cmdtable.update(other.cmdtable) | |
107 | for section, items in other.configtable.iteritems(): |
|
107 | for section, items in other.configtable.iteritems(): | |
108 | if section in self.configtable: |
|
108 | if section in self.configtable: | |
109 | self.configtable[section].update(items) |
|
109 | self.configtable[section].update(items) | |
110 | else: |
|
110 | else: | |
111 | self.configtable[section] = items |
|
111 | self.configtable[section] = items | |
112 |
|
112 | |||
113 | def finaluisetup(self, ui): |
|
113 | def finaluisetup(self, ui): | |
114 | """Method to be used as the extension uisetup |
|
114 | """Method to be used as the extension uisetup | |
115 |
|
115 | |||
116 | The following operations belong here: |
|
116 | The following operations belong here: | |
117 |
|
117 | |||
118 | - Changes to ui.__class__ . The ui object that will be used to run the |
|
118 | - Changes to ui.__class__ . The ui object that will be used to run the | |
119 | command has not yet been created. Changes made here will affect ui |
|
119 | command has not yet been created. Changes made here will affect ui | |
120 | objects created after this, and in particular the ui that will be |
|
120 | objects created after this, and in particular the ui that will be | |
121 | passed to runcommand |
|
121 | passed to runcommand | |
122 | - Command wraps (extensions.wrapcommand) |
|
122 | - Command wraps (extensions.wrapcommand) | |
123 | - Changes that need to be visible to other extensions: because |
|
123 | - Changes that need to be visible to other extensions: because | |
124 | initialization occurs in phases (all extensions run uisetup, then all |
|
124 | initialization occurs in phases (all extensions run uisetup, then all | |
125 | run extsetup), a change made here will be visible to other extensions |
|
125 | run extsetup), a change made here will be visible to other extensions | |
126 | during extsetup |
|
126 | during extsetup | |
127 | - Monkeypatch or wrap function (extensions.wrapfunction) of dispatch |
|
127 | - Monkeypatch or wrap function (extensions.wrapfunction) of dispatch | |
128 | module members |
|
128 | module members | |
129 | - Setup of pre-* and post-* hooks |
|
129 | - Setup of pre-* and post-* hooks | |
130 | - pushkey setup |
|
130 | - pushkey setup | |
131 | """ |
|
131 | """ | |
132 | for cont, funcname, func in self._duckpunchers: |
|
132 | for cont, funcname, func in self._duckpunchers: | |
133 | setattr(cont, funcname, func) |
|
133 | setattr(cont, funcname, func) | |
134 | for command, wrapper, opts in self._commandwrappers: |
|
134 | for command, wrapper, opts in self._commandwrappers: | |
135 | entry = extensions.wrapcommand(commands.table, command, wrapper) |
|
135 | entry = extensions.wrapcommand(commands.table, command, wrapper) | |
136 | if opts: |
|
136 | if opts: | |
137 | for opt in opts: |
|
137 | for opt in opts: | |
138 | entry[1].append(opt) |
|
138 | entry[1].append(opt) | |
139 | for cont, funcname, wrapper in self._functionwrappers: |
|
139 | for cont, funcname, wrapper in self._functionwrappers: | |
140 | extensions.wrapfunction(cont, funcname, wrapper) |
|
140 | extensions.wrapfunction(cont, funcname, wrapper) | |
141 | for c in self._uicallables: |
|
141 | for c in self._uicallables: | |
142 | c(ui) |
|
142 | c(ui) | |
143 |
|
143 | |||
144 | def finaluipopulate(self, ui): |
|
144 | def finaluipopulate(self, ui): | |
145 | """Method to be used as the extension uipopulate |
|
145 | """Method to be used as the extension uipopulate | |
146 |
|
146 | |||
147 | This is called once per ui instance to: |
|
147 | This is called once per ui instance to: | |
148 |
|
148 | |||
149 | - Set up additional ui members |
|
149 | - Set up additional ui members | |
150 | - Update configuration by ``ui.setconfig()`` |
|
150 | - Update configuration by ``ui.setconfig()`` | |
151 | - Extend the class dynamically |
|
151 | - Extend the class dynamically | |
152 | """ |
|
152 | """ | |
153 | for c in self._uipopulatecallables: |
|
153 | for c in self._uipopulatecallables: | |
154 | c(ui) |
|
154 | c(ui) | |
155 |
|
155 | |||
156 | def finalextsetup(self, ui): |
|
156 | def finalextsetup(self, ui): | |
157 | """Method to be used as a the extension extsetup |
|
157 | """Method to be used as a the extension extsetup | |
158 |
|
158 | |||
159 | The following operations belong here: |
|
159 | The following operations belong here: | |
160 |
|
160 | |||
161 | - Changes depending on the status of other extensions. (if |
|
161 | - Changes depending on the status of other extensions. (if | |
162 | extensions.find('mq')) |
|
162 | extensions.find('mq')) | |
163 | - Add a global option to all commands |
|
163 | - Add a global option to all commands | |
164 | """ |
|
164 | """ | |
165 | knownexts = {} |
|
165 | knownexts = {} | |
166 |
|
166 | |||
167 | for ext, command, wrapper, opts in self._extcommandwrappers: |
|
167 | for ext, command, wrapper, opts in self._extcommandwrappers: | |
168 | if ext not in knownexts: |
|
168 | if ext not in knownexts: | |
169 | try: |
|
169 | try: | |
170 | e = extensions.find(ext) |
|
170 | e = extensions.find(ext) | |
171 | except KeyError: |
|
171 | except KeyError: | |
172 | # Extension isn't enabled, so don't bother trying to wrap |
|
172 | # Extension isn't enabled, so don't bother trying to wrap | |
173 | # it. |
|
173 | # it. | |
174 | continue |
|
174 | continue | |
175 | knownexts[ext] = e.cmdtable |
|
175 | knownexts[ext] = e.cmdtable | |
176 | entry = extensions.wrapcommand(knownexts[ext], command, wrapper) |
|
176 | entry = extensions.wrapcommand(knownexts[ext], command, wrapper) | |
177 | if opts: |
|
177 | if opts: | |
178 | for opt in opts: |
|
178 | for opt in opts: | |
179 | entry[1].append(opt) |
|
179 | entry[1].append(opt) | |
180 |
|
180 | |||
181 | for c in self._extcallables: |
|
181 | for c in self._extcallables: | |
182 | c(ui) |
|
182 | c(ui) | |
183 |
|
183 | |||
184 | def finalreposetup(self, ui, repo): |
|
184 | def finalreposetup(self, ui, repo): | |
185 | """Method to be used as the extension reposetup |
|
185 | """Method to be used as the extension reposetup | |
186 |
|
186 | |||
187 | The following operations belong here: |
|
187 | The following operations belong here: | |
188 |
|
188 | |||
189 | - All hooks but pre-* and post-* |
|
189 | - All hooks but pre-* and post-* | |
190 | - Modify configuration variables |
|
190 | - Modify configuration variables | |
191 | - Changes to repo.__class__, repo.dirstate.__class__ |
|
191 | - Changes to repo.__class__, repo.dirstate.__class__ | |
192 | """ |
|
192 | """ | |
193 | for c in self._repocallables: |
|
193 | for c in self._repocallables: | |
194 | c(ui, repo) |
|
194 | c(ui, repo) | |
195 |
|
195 | |||
196 | def uisetup(self, call): |
|
196 | def uisetup(self, call): | |
197 | """Decorated function will be executed during uisetup |
|
197 | """Decorated function will be executed during uisetup | |
198 |
|
198 | |||
199 | example:: |
|
199 | example:: | |
200 |
|
200 | |||
201 | @eh.uisetup |
|
201 | @eh.uisetup | |
202 | def setupbabar(ui): |
|
202 | def setupbabar(ui): | |
203 | print 'this is uisetup!' |
|
203 | print 'this is uisetup!' | |
204 | """ |
|
204 | """ | |
205 | self._uicallables.append(call) |
|
205 | self._uicallables.append(call) | |
206 | return call |
|
206 | return call | |
207 |
|
207 | |||
208 | def uipopulate(self, call): |
|
208 | def uipopulate(self, call): | |
209 | """Decorated function will be executed during uipopulate |
|
209 | """Decorated function will be executed during uipopulate | |
210 |
|
210 | |||
211 | example:: |
|
211 | example:: | |
212 |
|
212 | |||
213 | @eh.uipopulate |
|
213 | @eh.uipopulate | |
214 | def setupfoo(ui): |
|
214 | def setupfoo(ui): | |
215 | print 'this is uipopulate!' |
|
215 | print 'this is uipopulate!' | |
216 | """ |
|
216 | """ | |
217 | self._uipopulatecallables.append(call) |
|
217 | self._uipopulatecallables.append(call) | |
218 | return call |
|
218 | return call | |
219 |
|
219 | |||
220 | def extsetup(self, call): |
|
220 | def extsetup(self, call): | |
221 | """Decorated function will be executed during extsetup |
|
221 | """Decorated function will be executed during extsetup | |
222 |
|
222 | |||
223 | example:: |
|
223 | example:: | |
224 |
|
224 | |||
225 | @eh.extsetup |
|
225 | @eh.extsetup | |
226 | def setupcelestine(ui): |
|
226 | def setupcelestine(ui): | |
227 | print 'this is extsetup!' |
|
227 | print 'this is extsetup!' | |
228 | """ |
|
228 | """ | |
229 | self._extcallables.append(call) |
|
229 | self._extcallables.append(call) | |
230 | return call |
|
230 | return call | |
231 |
|
231 | |||
232 | def reposetup(self, call): |
|
232 | def reposetup(self, call): | |
233 | """Decorated function will be executed during reposetup |
|
233 | """Decorated function will be executed during reposetup | |
234 |
|
234 | |||
235 | example:: |
|
235 | example:: | |
236 |
|
236 | |||
237 | @eh.reposetup |
|
237 | @eh.reposetup | |
238 | def setupzephir(ui, repo): |
|
238 | def setupzephir(ui, repo): | |
239 | print 'this is reposetup!' |
|
239 | print 'this is reposetup!' | |
240 | """ |
|
240 | """ | |
241 | self._repocallables.append(call) |
|
241 | self._repocallables.append(call) | |
242 | return call |
|
242 | return call | |
243 |
|
243 | |||
244 | def wrapcommand(self, command, extension=None, opts=None): |
|
244 | def wrapcommand(self, command, extension=None, opts=None): | |
245 | """Decorated function is a command wrapper |
|
245 | """Decorated function is a command wrapper | |
246 |
|
246 | |||
247 | The name of the command must be given as the decorator argument. |
|
247 | The name of the command must be given as the decorator argument. | |
248 | The wrapping is installed during `uisetup`. |
|
248 | The wrapping is installed during `uisetup`. | |
249 |
|
249 | |||
250 | If the second option `extension` argument is provided, the wrapping |
|
250 | If the second option `extension` argument is provided, the wrapping | |
251 | will be applied in the extension commandtable. This argument must be a |
|
251 | will be applied in the extension commandtable. This argument must be a | |
252 | string that will be searched using `extension.find` if not found and |
|
252 | string that will be searched using `extension.find` if not found and | |
253 | Abort error is raised. If the wrapping applies to an extension, it is |
|
253 | Abort error is raised. If the wrapping applies to an extension, it is | |
254 | installed during `extsetup`. |
|
254 | installed during `extsetup`. | |
255 |
|
255 | |||
256 | example:: |
|
256 | example:: | |
257 |
|
257 | |||
258 | @eh.wrapcommand('summary') |
|
258 | @eh.wrapcommand('summary') | |
259 | def wrapsummary(orig, ui, repo, *args, **kwargs): |
|
259 | def wrapsummary(orig, ui, repo, *args, **kwargs): | |
260 | ui.note('Barry!') |
|
260 | ui.note('Barry!') | |
261 | return orig(ui, repo, *args, **kwargs) |
|
261 | return orig(ui, repo, *args, **kwargs) | |
262 |
|
262 | |||
263 | The `opts` argument allows specifying a list of tuples for additional |
|
263 | The `opts` argument allows specifying a list of tuples for additional | |
264 | arguments for the command. See ``mercurial.fancyopts.fancyopts()`` for |
|
264 | arguments for the command. See ``mercurial.fancyopts.fancyopts()`` for | |
265 | the format of the tuple. |
|
265 | the format of the tuple. | |
266 |
|
266 | |||
267 | """ |
|
267 | """ | |
268 | if opts is None: |
|
268 | if opts is None: | |
269 | opts = [] |
|
269 | opts = [] | |
270 | else: |
|
270 | else: | |
271 | for opt in opts: |
|
271 | for opt in opts: | |
272 | if not isinstance(opt, tuple): |
|
272 | if not isinstance(opt, tuple): | |
273 | raise error.ProgrammingError('opts must be list of tuples') |
|
273 | raise error.ProgrammingError('opts must be list of tuples') | |
274 | if len(opt) not in (4, 5): |
|
274 | if len(opt) not in (4, 5): | |
275 | msg = 'each opt tuple must contain 4 or 5 values' |
|
275 | msg = 'each opt tuple must contain 4 or 5 values' | |
276 | raise error.ProgrammingError(msg) |
|
276 | raise error.ProgrammingError(msg) | |
277 |
|
277 | |||
278 | def dec(wrapper): |
|
278 | def dec(wrapper): | |
279 | if extension is None: |
|
279 | if extension is None: | |
280 | self._commandwrappers.append((command, wrapper, opts)) |
|
280 | self._commandwrappers.append((command, wrapper, opts)) | |
281 | else: |
|
281 | else: | |
282 | self._extcommandwrappers.append((extension, command, wrapper, |
|
282 | self._extcommandwrappers.append((extension, command, wrapper, | |
283 | opts)) |
|
283 | opts)) | |
284 | return wrapper |
|
284 | return wrapper | |
285 | return dec |
|
285 | return dec | |
286 |
|
286 | |||
287 | def wrapfunction(self, container, funcname): |
|
287 | def wrapfunction(self, container, funcname): | |
288 | """Decorated function is a function wrapper |
|
288 | """Decorated function is a function wrapper | |
289 |
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289 | |||
290 | This function takes two arguments, the container and the name of the |
|
290 | This function takes two arguments, the container and the name of the | |
291 | function to wrap. The wrapping is performed during `uisetup`. |
|
291 | function to wrap. The wrapping is performed during `uisetup`. | |
292 | (there is no extension support) |
|
292 | (there is no extension support) | |
293 |
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293 | |||
294 | example:: |
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294 | example:: | |
295 |
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295 | |||
296 | @eh.function(discovery, 'checkheads') |
|
296 | @eh.function(discovery, 'checkheads') | |
297 | def wrapfunction(orig, *args, **kwargs): |
|
297 | def wrapfunction(orig, *args, **kwargs): | |
298 | ui.note('His head smashed in and his heart cut out') |
|
298 | ui.note('His head smashed in and his heart cut out') | |
299 | return orig(*args, **kwargs) |
|
299 | return orig(*args, **kwargs) | |
300 | """ |
|
300 | """ | |
301 | def dec(wrapper): |
|
301 | def dec(wrapper): | |
302 | self._functionwrappers.append((container, funcname, wrapper)) |
|
302 | self._functionwrappers.append((container, funcname, wrapper)) | |
303 | return wrapper |
|
303 | return wrapper | |
304 | return dec |
|
304 | return dec | |
305 |
|
305 | |||
306 | def addattr(self, container, funcname): |
|
306 | def addattr(self, container, funcname): | |
307 | """Decorated function is to be added to the container |
|
307 | """Decorated function is to be added to the container | |
308 |
|
308 | |||
309 | This function takes two arguments, the container and the name of the |
|
309 | This function takes two arguments, the container and the name of the | |
310 | function to wrap. The wrapping is performed during `uisetup`. |
|
310 | function to wrap. The wrapping is performed during `uisetup`. | |
311 |
|
311 | |||
312 | Adding attributes to a container like this is discouraged, because the |
|
312 | Adding attributes to a container like this is discouraged, because the | |
313 | container modification is visible even in repositories that do not |
|
313 | container modification is visible even in repositories that do not | |
314 | have the extension loaded. Therefore, care must be taken that the |
|
314 | have the extension loaded. Therefore, care must be taken that the | |
315 | function doesn't make assumptions that the extension was loaded for the |
|
315 | function doesn't make assumptions that the extension was loaded for the | |
316 | current repository. For `ui` and `repo` instances, a better option is |
|
316 | current repository. For `ui` and `repo` instances, a better option is | |
317 | to subclass the instance in `uipopulate` and `reposetup` respectively. |
|
317 | to subclass the instance in `uipopulate` and `reposetup` respectively. | |
318 |
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318 | |||
319 | https://www.mercurial-scm.org/wiki/WritingExtensions |
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319 | https://www.mercurial-scm.org/wiki/WritingExtensions | |
320 |
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320 | |||
321 | example:: |
|
321 | example:: | |
322 |
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322 | |||
323 | @eh.addattr(context.changectx, 'babar') |
|
323 | @eh.addattr(context.changectx, 'babar') | |
324 | def babar(ctx): |
|
324 | def babar(ctx): | |
325 | return 'babar' in ctx.description |
|
325 | return 'babar' in ctx.description | |
326 | """ |
|
326 | """ | |
327 | def dec(func): |
|
327 | def dec(func): | |
328 | self._duckpunchers.append((container, funcname, func)) |
|
328 | self._duckpunchers.append((container, funcname, func)) | |
329 | return func |
|
329 | return func | |
330 | return dec |
|
330 | return dec |
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