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@@ -1,534 +1,535 b'' | |||||
1 | # templateutil.py - utility for template evaluation |
|
1 | # templateutil.py - utility for template evaluation | |
2 | # |
|
2 | # | |
3 | # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com> |
|
3 | # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com> | |
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 | from __future__ import absolute_import |
|
8 | from __future__ import absolute_import | |
9 |
|
9 | |||
10 | import abc |
|
10 | import abc | |
11 | import types |
|
11 | import types | |
12 |
|
12 | |||
13 | from .i18n import _ |
|
13 | from .i18n import _ | |
14 | from . import ( |
|
14 | from . import ( | |
15 | error, |
|
15 | error, | |
16 | pycompat, |
|
16 | pycompat, | |
17 | util, |
|
17 | util, | |
18 | ) |
|
18 | ) | |
19 | from .utils import ( |
|
19 | from .utils import ( | |
20 | dateutil, |
|
20 | dateutil, | |
21 | stringutil, |
|
21 | stringutil, | |
22 | ) |
|
22 | ) | |
23 |
|
23 | |||
24 | class ResourceUnavailable(error.Abort): |
|
24 | class ResourceUnavailable(error.Abort): | |
25 | pass |
|
25 | pass | |
26 |
|
26 | |||
27 | class TemplateNotFound(error.Abort): |
|
27 | class TemplateNotFound(error.Abort): | |
28 | pass |
|
28 | pass | |
29 |
|
29 | |||
30 | class wrapped(object): |
|
30 | class wrapped(object): | |
31 | """Object requiring extra conversion prior to displaying or processing |
|
31 | """Object requiring extra conversion prior to displaying or processing | |
32 | as value""" |
|
32 | as value""" | |
33 |
|
33 | |||
34 | __metaclass__ = abc.ABCMeta |
|
34 | __metaclass__ = abc.ABCMeta | |
35 |
|
35 | |||
36 | @abc.abstractmethod |
|
36 | @abc.abstractmethod | |
37 | def show(self, context, mapping): |
|
37 | def show(self, context, mapping): | |
38 | """Return a bytes or (possibly nested) generator of bytes representing |
|
38 | """Return a bytes or (possibly nested) generator of bytes representing | |
39 | the underlying object |
|
39 | the underlying object | |
40 |
|
40 | |||
41 | A pre-configured template may be rendered if the underlying object is |
|
41 | A pre-configured template may be rendered if the underlying object is | |
42 | not printable. |
|
42 | not printable. | |
43 | """ |
|
43 | """ | |
44 |
|
44 | |||
45 | # stub for representing a date type; may be a real date type that can |
|
45 | # stub for representing a date type; may be a real date type that can | |
46 | # provide a readable string value |
|
46 | # provide a readable string value | |
47 | class date(object): |
|
47 | class date(object): | |
48 | pass |
|
48 | pass | |
49 |
|
49 | |||
50 | class hybrid(wrapped): |
|
50 | class hybrid(wrapped): | |
51 | """Wrapper for list or dict to support legacy template |
|
51 | """Wrapper for list or dict to support legacy template | |
52 |
|
52 | |||
53 | This class allows us to handle both: |
|
53 | This class allows us to handle both: | |
54 | - "{files}" (legacy command-line-specific list hack) and |
|
54 | - "{files}" (legacy command-line-specific list hack) and | |
55 | - "{files % '{file}\n'}" (hgweb-style with inlining and function support) |
|
55 | - "{files % '{file}\n'}" (hgweb-style with inlining and function support) | |
56 | and to access raw values: |
|
56 | and to access raw values: | |
57 | - "{ifcontains(file, files, ...)}", "{ifcontains(key, extras, ...)}" |
|
57 | - "{ifcontains(file, files, ...)}", "{ifcontains(key, extras, ...)}" | |
58 | - "{get(extras, key)}" |
|
58 | - "{get(extras, key)}" | |
59 | - "{files|json}" |
|
59 | - "{files|json}" | |
60 | """ |
|
60 | """ | |
61 |
|
61 | |||
62 | def __init__(self, gen, values, makemap, joinfmt, keytype=None): |
|
62 | def __init__(self, gen, values, makemap, joinfmt, keytype=None): | |
63 | if gen is not None: |
|
63 | if gen is not None: | |
64 | self.gen = gen # generator or function returning generator |
|
64 | self._gen = gen # generator or function returning generator | |
65 | self._values = values |
|
65 | self._values = values | |
66 | self._makemap = makemap |
|
66 | self._makemap = makemap | |
67 | self.joinfmt = joinfmt |
|
67 | self.joinfmt = joinfmt | |
68 | self.keytype = keytype # hint for 'x in y' where type(x) is unresolved |
|
68 | self.keytype = keytype # hint for 'x in y' where type(x) is unresolved | |
69 | def gen(self): |
|
69 | ||
|
70 | def _gen(self): | |||
70 | """Default generator to stringify this as {join(self, ' ')}""" |
|
71 | """Default generator to stringify this as {join(self, ' ')}""" | |
71 | for i, x in enumerate(self._values): |
|
72 | for i, x in enumerate(self._values): | |
72 | if i > 0: |
|
73 | if i > 0: | |
73 | yield ' ' |
|
74 | yield ' ' | |
74 | yield self.joinfmt(x) |
|
75 | yield self.joinfmt(x) | |
75 | def itermaps(self): |
|
76 | def itermaps(self): | |
76 | makemap = self._makemap |
|
77 | makemap = self._makemap | |
77 | for x in self._values: |
|
78 | for x in self._values: | |
78 | yield makemap(x) |
|
79 | yield makemap(x) | |
79 |
|
80 | |||
80 | def show(self, context, mapping): |
|
81 | def show(self, context, mapping): | |
81 | # TODO: switch gen to (context, mapping) API? |
|
82 | # TODO: switch gen to (context, mapping) API? | |
82 | gen = self.gen |
|
83 | gen = self._gen | |
83 | if callable(gen): |
|
84 | if callable(gen): | |
84 | return gen() |
|
85 | return gen() | |
85 | return gen |
|
86 | return gen | |
86 |
|
87 | |||
87 | def __contains__(self, x): |
|
88 | def __contains__(self, x): | |
88 | return x in self._values |
|
89 | return x in self._values | |
89 | def __getitem__(self, key): |
|
90 | def __getitem__(self, key): | |
90 | return self._values[key] |
|
91 | return self._values[key] | |
91 | def __len__(self): |
|
92 | def __len__(self): | |
92 | return len(self._values) |
|
93 | return len(self._values) | |
93 | def __iter__(self): |
|
94 | def __iter__(self): | |
94 | return iter(self._values) |
|
95 | return iter(self._values) | |
95 | def __getattr__(self, name): |
|
96 | def __getattr__(self, name): | |
96 | if name not in (r'get', r'items', r'iteritems', r'iterkeys', |
|
97 | if name not in (r'get', r'items', r'iteritems', r'iterkeys', | |
97 | r'itervalues', r'keys', r'values'): |
|
98 | r'itervalues', r'keys', r'values'): | |
98 | raise AttributeError(name) |
|
99 | raise AttributeError(name) | |
99 | return getattr(self._values, name) |
|
100 | return getattr(self._values, name) | |
100 |
|
101 | |||
101 | class mappable(wrapped): |
|
102 | class mappable(wrapped): | |
102 | """Wrapper for non-list/dict object to support map operation |
|
103 | """Wrapper for non-list/dict object to support map operation | |
103 |
|
104 | |||
104 | This class allows us to handle both: |
|
105 | This class allows us to handle both: | |
105 | - "{manifest}" |
|
106 | - "{manifest}" | |
106 | - "{manifest % '{rev}:{node}'}" |
|
107 | - "{manifest % '{rev}:{node}'}" | |
107 | - "{manifest.rev}" |
|
108 | - "{manifest.rev}" | |
108 |
|
109 | |||
109 | Unlike a hybrid, this does not simulate the behavior of the underling |
|
110 | Unlike a hybrid, this does not simulate the behavior of the underling | |
110 | value. Use unwrapvalue(), unwrapastype(), or unwraphybrid() to obtain |
|
111 | value. Use unwrapvalue(), unwrapastype(), or unwraphybrid() to obtain | |
111 | the inner object. |
|
112 | the inner object. | |
112 | """ |
|
113 | """ | |
113 |
|
114 | |||
114 | def __init__(self, gen, key, value, makemap): |
|
115 | def __init__(self, gen, key, value, makemap): | |
115 | if gen is not None: |
|
116 | if gen is not None: | |
116 | self.gen = gen # generator or function returning generator |
|
117 | self._gen = gen # generator or function returning generator | |
117 | self._key = key |
|
118 | self._key = key | |
118 | self._value = value # may be generator of strings |
|
119 | self._value = value # may be generator of strings | |
119 | self._makemap = makemap |
|
120 | self._makemap = makemap | |
120 |
|
121 | |||
121 | def gen(self): |
|
122 | def _gen(self): | |
122 | yield pycompat.bytestr(self._value) |
|
123 | yield pycompat.bytestr(self._value) | |
123 |
|
124 | |||
124 | def tomap(self): |
|
125 | def tomap(self): | |
125 | return self._makemap(self._key) |
|
126 | return self._makemap(self._key) | |
126 |
|
127 | |||
127 | def itermaps(self): |
|
128 | def itermaps(self): | |
128 | yield self.tomap() |
|
129 | yield self.tomap() | |
129 |
|
130 | |||
130 | def show(self, context, mapping): |
|
131 | def show(self, context, mapping): | |
131 | # TODO: switch gen to (context, mapping) API? |
|
132 | # TODO: switch gen to (context, mapping) API? | |
132 | gen = self.gen |
|
133 | gen = self._gen | |
133 | if callable(gen): |
|
134 | if callable(gen): | |
134 | return gen() |
|
135 | return gen() | |
135 | return gen |
|
136 | return gen | |
136 |
|
137 | |||
137 | def hybriddict(data, key='key', value='value', fmt=None, gen=None): |
|
138 | def hybriddict(data, key='key', value='value', fmt=None, gen=None): | |
138 | """Wrap data to support both dict-like and string-like operations""" |
|
139 | """Wrap data to support both dict-like and string-like operations""" | |
139 | prefmt = pycompat.identity |
|
140 | prefmt = pycompat.identity | |
140 | if fmt is None: |
|
141 | if fmt is None: | |
141 | fmt = '%s=%s' |
|
142 | fmt = '%s=%s' | |
142 | prefmt = pycompat.bytestr |
|
143 | prefmt = pycompat.bytestr | |
143 | return hybrid(gen, data, lambda k: {key: k, value: data[k]}, |
|
144 | return hybrid(gen, data, lambda k: {key: k, value: data[k]}, | |
144 | lambda k: fmt % (prefmt(k), prefmt(data[k]))) |
|
145 | lambda k: fmt % (prefmt(k), prefmt(data[k]))) | |
145 |
|
146 | |||
146 | def hybridlist(data, name, fmt=None, gen=None): |
|
147 | def hybridlist(data, name, fmt=None, gen=None): | |
147 | """Wrap data to support both list-like and string-like operations""" |
|
148 | """Wrap data to support both list-like and string-like operations""" | |
148 | prefmt = pycompat.identity |
|
149 | prefmt = pycompat.identity | |
149 | if fmt is None: |
|
150 | if fmt is None: | |
150 | fmt = '%s' |
|
151 | fmt = '%s' | |
151 | prefmt = pycompat.bytestr |
|
152 | prefmt = pycompat.bytestr | |
152 | return hybrid(gen, data, lambda x: {name: x}, lambda x: fmt % prefmt(x)) |
|
153 | return hybrid(gen, data, lambda x: {name: x}, lambda x: fmt % prefmt(x)) | |
153 |
|
154 | |||
154 | def unwraphybrid(context, mapping, thing): |
|
155 | def unwraphybrid(context, mapping, thing): | |
155 | """Return an object which can be stringified possibly by using a legacy |
|
156 | """Return an object which can be stringified possibly by using a legacy | |
156 | template""" |
|
157 | template""" | |
157 | if not isinstance(thing, wrapped): |
|
158 | if not isinstance(thing, wrapped): | |
158 | return thing |
|
159 | return thing | |
159 | return thing.show(context, mapping) |
|
160 | return thing.show(context, mapping) | |
160 |
|
161 | |||
161 | def unwrapvalue(thing): |
|
162 | def unwrapvalue(thing): | |
162 | """Move the inner value object out of the wrapper""" |
|
163 | """Move the inner value object out of the wrapper""" | |
163 | if not util.safehasattr(thing, '_value'): |
|
164 | if not util.safehasattr(thing, '_value'): | |
164 | return thing |
|
165 | return thing | |
165 | return thing._value |
|
166 | return thing._value | |
166 |
|
167 | |||
167 | def wraphybridvalue(container, key, value): |
|
168 | def wraphybridvalue(container, key, value): | |
168 | """Wrap an element of hybrid container to be mappable |
|
169 | """Wrap an element of hybrid container to be mappable | |
169 |
|
170 | |||
170 | The key is passed to the makemap function of the given container, which |
|
171 | The key is passed to the makemap function of the given container, which | |
171 | should be an item generated by iter(container). |
|
172 | should be an item generated by iter(container). | |
172 | """ |
|
173 | """ | |
173 | makemap = getattr(container, '_makemap', None) |
|
174 | makemap = getattr(container, '_makemap', None) | |
174 | if makemap is None: |
|
175 | if makemap is None: | |
175 | return value |
|
176 | return value | |
176 | if util.safehasattr(value, '_makemap'): |
|
177 | if util.safehasattr(value, '_makemap'): | |
177 | # a nested hybrid list/dict, which has its own way of map operation |
|
178 | # a nested hybrid list/dict, which has its own way of map operation | |
178 | return value |
|
179 | return value | |
179 | return mappable(None, key, value, makemap) |
|
180 | return mappable(None, key, value, makemap) | |
180 |
|
181 | |||
181 | def compatdict(context, mapping, name, data, key='key', value='value', |
|
182 | def compatdict(context, mapping, name, data, key='key', value='value', | |
182 | fmt=None, plural=None, separator=' '): |
|
183 | fmt=None, plural=None, separator=' '): | |
183 | """Wrap data like hybriddict(), but also supports old-style list template |
|
184 | """Wrap data like hybriddict(), but also supports old-style list template | |
184 |
|
185 | |||
185 | This exists for backward compatibility with the old-style template. Use |
|
186 | This exists for backward compatibility with the old-style template. Use | |
186 | hybriddict() for new template keywords. |
|
187 | hybriddict() for new template keywords. | |
187 | """ |
|
188 | """ | |
188 | c = [{key: k, value: v} for k, v in data.iteritems()] |
|
189 | c = [{key: k, value: v} for k, v in data.iteritems()] | |
189 | f = _showcompatlist(context, mapping, name, c, plural, separator) |
|
190 | f = _showcompatlist(context, mapping, name, c, plural, separator) | |
190 | return hybriddict(data, key=key, value=value, fmt=fmt, gen=f) |
|
191 | return hybriddict(data, key=key, value=value, fmt=fmt, gen=f) | |
191 |
|
192 | |||
192 | def compatlist(context, mapping, name, data, element=None, fmt=None, |
|
193 | def compatlist(context, mapping, name, data, element=None, fmt=None, | |
193 | plural=None, separator=' '): |
|
194 | plural=None, separator=' '): | |
194 | """Wrap data like hybridlist(), but also supports old-style list template |
|
195 | """Wrap data like hybridlist(), but also supports old-style list template | |
195 |
|
196 | |||
196 | This exists for backward compatibility with the old-style template. Use |
|
197 | This exists for backward compatibility with the old-style template. Use | |
197 | hybridlist() for new template keywords. |
|
198 | hybridlist() for new template keywords. | |
198 | """ |
|
199 | """ | |
199 | f = _showcompatlist(context, mapping, name, data, plural, separator) |
|
200 | f = _showcompatlist(context, mapping, name, data, plural, separator) | |
200 | return hybridlist(data, name=element or name, fmt=fmt, gen=f) |
|
201 | return hybridlist(data, name=element or name, fmt=fmt, gen=f) | |
201 |
|
202 | |||
202 | def _showcompatlist(context, mapping, name, values, plural=None, separator=' '): |
|
203 | def _showcompatlist(context, mapping, name, values, plural=None, separator=' '): | |
203 | """Return a generator that renders old-style list template |
|
204 | """Return a generator that renders old-style list template | |
204 |
|
205 | |||
205 | name is name of key in template map. |
|
206 | name is name of key in template map. | |
206 | values is list of strings or dicts. |
|
207 | values is list of strings or dicts. | |
207 | plural is plural of name, if not simply name + 's'. |
|
208 | plural is plural of name, if not simply name + 's'. | |
208 | separator is used to join values as a string |
|
209 | separator is used to join values as a string | |
209 |
|
210 | |||
210 | expansion works like this, given name 'foo'. |
|
211 | expansion works like this, given name 'foo'. | |
211 |
|
212 | |||
212 | if values is empty, expand 'no_foos'. |
|
213 | if values is empty, expand 'no_foos'. | |
213 |
|
214 | |||
214 | if 'foo' not in template map, return values as a string, |
|
215 | if 'foo' not in template map, return values as a string, | |
215 | joined by 'separator'. |
|
216 | joined by 'separator'. | |
216 |
|
217 | |||
217 | expand 'start_foos'. |
|
218 | expand 'start_foos'. | |
218 |
|
219 | |||
219 | for each value, expand 'foo'. if 'last_foo' in template |
|
220 | for each value, expand 'foo'. if 'last_foo' in template | |
220 | map, expand it instead of 'foo' for last key. |
|
221 | map, expand it instead of 'foo' for last key. | |
221 |
|
222 | |||
222 | expand 'end_foos'. |
|
223 | expand 'end_foos'. | |
223 | """ |
|
224 | """ | |
224 | if not plural: |
|
225 | if not plural: | |
225 | plural = name + 's' |
|
226 | plural = name + 's' | |
226 | if not values: |
|
227 | if not values: | |
227 | noname = 'no_' + plural |
|
228 | noname = 'no_' + plural | |
228 | if context.preload(noname): |
|
229 | if context.preload(noname): | |
229 | yield context.process(noname, mapping) |
|
230 | yield context.process(noname, mapping) | |
230 | return |
|
231 | return | |
231 | if not context.preload(name): |
|
232 | if not context.preload(name): | |
232 | if isinstance(values[0], bytes): |
|
233 | if isinstance(values[0], bytes): | |
233 | yield separator.join(values) |
|
234 | yield separator.join(values) | |
234 | else: |
|
235 | else: | |
235 | for v in values: |
|
236 | for v in values: | |
236 | r = dict(v) |
|
237 | r = dict(v) | |
237 | r.update(mapping) |
|
238 | r.update(mapping) | |
238 | yield r |
|
239 | yield r | |
239 | return |
|
240 | return | |
240 | startname = 'start_' + plural |
|
241 | startname = 'start_' + plural | |
241 | if context.preload(startname): |
|
242 | if context.preload(startname): | |
242 | yield context.process(startname, mapping) |
|
243 | yield context.process(startname, mapping) | |
243 | def one(v, tag=name): |
|
244 | def one(v, tag=name): | |
244 | vmapping = {} |
|
245 | vmapping = {} | |
245 | try: |
|
246 | try: | |
246 | vmapping.update(v) |
|
247 | vmapping.update(v) | |
247 | # Python 2 raises ValueError if the type of v is wrong. Python |
|
248 | # Python 2 raises ValueError if the type of v is wrong. Python | |
248 | # 3 raises TypeError. |
|
249 | # 3 raises TypeError. | |
249 | except (AttributeError, TypeError, ValueError): |
|
250 | except (AttributeError, TypeError, ValueError): | |
250 | try: |
|
251 | try: | |
251 | # Python 2 raises ValueError trying to destructure an e.g. |
|
252 | # Python 2 raises ValueError trying to destructure an e.g. | |
252 | # bytes. Python 3 raises TypeError. |
|
253 | # bytes. Python 3 raises TypeError. | |
253 | for a, b in v: |
|
254 | for a, b in v: | |
254 | vmapping[a] = b |
|
255 | vmapping[a] = b | |
255 | except (TypeError, ValueError): |
|
256 | except (TypeError, ValueError): | |
256 | vmapping[name] = v |
|
257 | vmapping[name] = v | |
257 | vmapping = context.overlaymap(mapping, vmapping) |
|
258 | vmapping = context.overlaymap(mapping, vmapping) | |
258 | return context.process(tag, vmapping) |
|
259 | return context.process(tag, vmapping) | |
259 | lastname = 'last_' + name |
|
260 | lastname = 'last_' + name | |
260 | if context.preload(lastname): |
|
261 | if context.preload(lastname): | |
261 | last = values.pop() |
|
262 | last = values.pop() | |
262 | else: |
|
263 | else: | |
263 | last = None |
|
264 | last = None | |
264 | for v in values: |
|
265 | for v in values: | |
265 | yield one(v) |
|
266 | yield one(v) | |
266 | if last is not None: |
|
267 | if last is not None: | |
267 | yield one(last, tag=lastname) |
|
268 | yield one(last, tag=lastname) | |
268 | endname = 'end_' + plural |
|
269 | endname = 'end_' + plural | |
269 | if context.preload(endname): |
|
270 | if context.preload(endname): | |
270 | yield context.process(endname, mapping) |
|
271 | yield context.process(endname, mapping) | |
271 |
|
272 | |||
272 | def flatten(context, mapping, thing): |
|
273 | def flatten(context, mapping, thing): | |
273 | """Yield a single stream from a possibly nested set of iterators""" |
|
274 | """Yield a single stream from a possibly nested set of iterators""" | |
274 | thing = unwraphybrid(context, mapping, thing) |
|
275 | thing = unwraphybrid(context, mapping, thing) | |
275 | if isinstance(thing, bytes): |
|
276 | if isinstance(thing, bytes): | |
276 | yield thing |
|
277 | yield thing | |
277 | elif isinstance(thing, str): |
|
278 | elif isinstance(thing, str): | |
278 | # We can only hit this on Python 3, and it's here to guard |
|
279 | # We can only hit this on Python 3, and it's here to guard | |
279 | # against infinite recursion. |
|
280 | # against infinite recursion. | |
280 | raise error.ProgrammingError('Mercurial IO including templates is done' |
|
281 | raise error.ProgrammingError('Mercurial IO including templates is done' | |
281 | ' with bytes, not strings, got %r' % thing) |
|
282 | ' with bytes, not strings, got %r' % thing) | |
282 | elif thing is None: |
|
283 | elif thing is None: | |
283 | pass |
|
284 | pass | |
284 | elif not util.safehasattr(thing, '__iter__'): |
|
285 | elif not util.safehasattr(thing, '__iter__'): | |
285 | yield pycompat.bytestr(thing) |
|
286 | yield pycompat.bytestr(thing) | |
286 | else: |
|
287 | else: | |
287 | for i in thing: |
|
288 | for i in thing: | |
288 | i = unwraphybrid(context, mapping, i) |
|
289 | i = unwraphybrid(context, mapping, i) | |
289 | if isinstance(i, bytes): |
|
290 | if isinstance(i, bytes): | |
290 | yield i |
|
291 | yield i | |
291 | elif i is None: |
|
292 | elif i is None: | |
292 | pass |
|
293 | pass | |
293 | elif not util.safehasattr(i, '__iter__'): |
|
294 | elif not util.safehasattr(i, '__iter__'): | |
294 | yield pycompat.bytestr(i) |
|
295 | yield pycompat.bytestr(i) | |
295 | else: |
|
296 | else: | |
296 | for j in flatten(context, mapping, i): |
|
297 | for j in flatten(context, mapping, i): | |
297 | yield j |
|
298 | yield j | |
298 |
|
299 | |||
299 | def stringify(context, mapping, thing): |
|
300 | def stringify(context, mapping, thing): | |
300 | """Turn values into bytes by converting into text and concatenating them""" |
|
301 | """Turn values into bytes by converting into text and concatenating them""" | |
301 | if isinstance(thing, bytes): |
|
302 | if isinstance(thing, bytes): | |
302 | return thing # retain localstr to be round-tripped |
|
303 | return thing # retain localstr to be round-tripped | |
303 | return b''.join(flatten(context, mapping, thing)) |
|
304 | return b''.join(flatten(context, mapping, thing)) | |
304 |
|
305 | |||
305 | def findsymbolicname(arg): |
|
306 | def findsymbolicname(arg): | |
306 | """Find symbolic name for the given compiled expression; returns None |
|
307 | """Find symbolic name for the given compiled expression; returns None | |
307 | if nothing found reliably""" |
|
308 | if nothing found reliably""" | |
308 | while True: |
|
309 | while True: | |
309 | func, data = arg |
|
310 | func, data = arg | |
310 | if func is runsymbol: |
|
311 | if func is runsymbol: | |
311 | return data |
|
312 | return data | |
312 | elif func is runfilter: |
|
313 | elif func is runfilter: | |
313 | arg = data[0] |
|
314 | arg = data[0] | |
314 | else: |
|
315 | else: | |
315 | return None |
|
316 | return None | |
316 |
|
317 | |||
317 | def evalrawexp(context, mapping, arg): |
|
318 | def evalrawexp(context, mapping, arg): | |
318 | """Evaluate given argument as a bare template object which may require |
|
319 | """Evaluate given argument as a bare template object which may require | |
319 | further processing (such as folding generator of strings)""" |
|
320 | further processing (such as folding generator of strings)""" | |
320 | func, data = arg |
|
321 | func, data = arg | |
321 | return func(context, mapping, data) |
|
322 | return func(context, mapping, data) | |
322 |
|
323 | |||
323 | def evalfuncarg(context, mapping, arg): |
|
324 | def evalfuncarg(context, mapping, arg): | |
324 | """Evaluate given argument as value type""" |
|
325 | """Evaluate given argument as value type""" | |
325 | return _unwrapvalue(context, mapping, evalrawexp(context, mapping, arg)) |
|
326 | return _unwrapvalue(context, mapping, evalrawexp(context, mapping, arg)) | |
326 |
|
327 | |||
327 | # TODO: unify this with unwrapvalue() once the bug of templatefunc.join() |
|
328 | # TODO: unify this with unwrapvalue() once the bug of templatefunc.join() | |
328 | # is fixed. we can't do that right now because join() has to take a generator |
|
329 | # is fixed. we can't do that right now because join() has to take a generator | |
329 | # of byte strings as it is, not a lazy byte string. |
|
330 | # of byte strings as it is, not a lazy byte string. | |
330 | def _unwrapvalue(context, mapping, thing): |
|
331 | def _unwrapvalue(context, mapping, thing): | |
331 | thing = unwrapvalue(thing) |
|
332 | thing = unwrapvalue(thing) | |
332 | # evalrawexp() may return string, generator of strings or arbitrary object |
|
333 | # evalrawexp() may return string, generator of strings or arbitrary object | |
333 | # such as date tuple, but filter does not want generator. |
|
334 | # such as date tuple, but filter does not want generator. | |
334 | if isinstance(thing, types.GeneratorType): |
|
335 | if isinstance(thing, types.GeneratorType): | |
335 | thing = stringify(context, mapping, thing) |
|
336 | thing = stringify(context, mapping, thing) | |
336 | return thing |
|
337 | return thing | |
337 |
|
338 | |||
338 | def evalboolean(context, mapping, arg): |
|
339 | def evalboolean(context, mapping, arg): | |
339 | """Evaluate given argument as boolean, but also takes boolean literals""" |
|
340 | """Evaluate given argument as boolean, but also takes boolean literals""" | |
340 | func, data = arg |
|
341 | func, data = arg | |
341 | if func is runsymbol: |
|
342 | if func is runsymbol: | |
342 | thing = func(context, mapping, data, default=None) |
|
343 | thing = func(context, mapping, data, default=None) | |
343 | if thing is None: |
|
344 | if thing is None: | |
344 | # not a template keyword, takes as a boolean literal |
|
345 | # not a template keyword, takes as a boolean literal | |
345 | thing = stringutil.parsebool(data) |
|
346 | thing = stringutil.parsebool(data) | |
346 | else: |
|
347 | else: | |
347 | thing = func(context, mapping, data) |
|
348 | thing = func(context, mapping, data) | |
348 | thing = unwrapvalue(thing) |
|
349 | thing = unwrapvalue(thing) | |
349 | if isinstance(thing, bool): |
|
350 | if isinstance(thing, bool): | |
350 | return thing |
|
351 | return thing | |
351 | # other objects are evaluated as strings, which means 0 is True, but |
|
352 | # other objects are evaluated as strings, which means 0 is True, but | |
352 | # empty dict/list should be False as they are expected to be '' |
|
353 | # empty dict/list should be False as they are expected to be '' | |
353 | return bool(stringify(context, mapping, thing)) |
|
354 | return bool(stringify(context, mapping, thing)) | |
354 |
|
355 | |||
355 | def evaldate(context, mapping, arg, err=None): |
|
356 | def evaldate(context, mapping, arg, err=None): | |
356 | """Evaluate given argument as a date tuple or a date string; returns |
|
357 | """Evaluate given argument as a date tuple or a date string; returns | |
357 | a (unixtime, offset) tuple""" |
|
358 | a (unixtime, offset) tuple""" | |
358 | thing = evalrawexp(context, mapping, arg) |
|
359 | thing = evalrawexp(context, mapping, arg) | |
359 | return unwrapdate(context, mapping, thing, err) |
|
360 | return unwrapdate(context, mapping, thing, err) | |
360 |
|
361 | |||
361 | def unwrapdate(context, mapping, thing, err=None): |
|
362 | def unwrapdate(context, mapping, thing, err=None): | |
362 | thing = _unwrapvalue(context, mapping, thing) |
|
363 | thing = _unwrapvalue(context, mapping, thing) | |
363 | try: |
|
364 | try: | |
364 | return dateutil.parsedate(thing) |
|
365 | return dateutil.parsedate(thing) | |
365 | except AttributeError: |
|
366 | except AttributeError: | |
366 | raise error.ParseError(err or _('not a date tuple nor a string')) |
|
367 | raise error.ParseError(err or _('not a date tuple nor a string')) | |
367 | except error.ParseError: |
|
368 | except error.ParseError: | |
368 | if not err: |
|
369 | if not err: | |
369 | raise |
|
370 | raise | |
370 | raise error.ParseError(err) |
|
371 | raise error.ParseError(err) | |
371 |
|
372 | |||
372 | def evalinteger(context, mapping, arg, err=None): |
|
373 | def evalinteger(context, mapping, arg, err=None): | |
373 | thing = evalrawexp(context, mapping, arg) |
|
374 | thing = evalrawexp(context, mapping, arg) | |
374 | return unwrapinteger(context, mapping, thing, err) |
|
375 | return unwrapinteger(context, mapping, thing, err) | |
375 |
|
376 | |||
376 | def unwrapinteger(context, mapping, thing, err=None): |
|
377 | def unwrapinteger(context, mapping, thing, err=None): | |
377 | thing = _unwrapvalue(context, mapping, thing) |
|
378 | thing = _unwrapvalue(context, mapping, thing) | |
378 | try: |
|
379 | try: | |
379 | return int(thing) |
|
380 | return int(thing) | |
380 | except (TypeError, ValueError): |
|
381 | except (TypeError, ValueError): | |
381 | raise error.ParseError(err or _('not an integer')) |
|
382 | raise error.ParseError(err or _('not an integer')) | |
382 |
|
383 | |||
383 | def evalstring(context, mapping, arg): |
|
384 | def evalstring(context, mapping, arg): | |
384 | return stringify(context, mapping, evalrawexp(context, mapping, arg)) |
|
385 | return stringify(context, mapping, evalrawexp(context, mapping, arg)) | |
385 |
|
386 | |||
386 | def evalstringliteral(context, mapping, arg): |
|
387 | def evalstringliteral(context, mapping, arg): | |
387 | """Evaluate given argument as string template, but returns symbol name |
|
388 | """Evaluate given argument as string template, but returns symbol name | |
388 | if it is unknown""" |
|
389 | if it is unknown""" | |
389 | func, data = arg |
|
390 | func, data = arg | |
390 | if func is runsymbol: |
|
391 | if func is runsymbol: | |
391 | thing = func(context, mapping, data, default=data) |
|
392 | thing = func(context, mapping, data, default=data) | |
392 | else: |
|
393 | else: | |
393 | thing = func(context, mapping, data) |
|
394 | thing = func(context, mapping, data) | |
394 | return stringify(context, mapping, thing) |
|
395 | return stringify(context, mapping, thing) | |
395 |
|
396 | |||
396 | _unwrapfuncbytype = { |
|
397 | _unwrapfuncbytype = { | |
397 | None: _unwrapvalue, |
|
398 | None: _unwrapvalue, | |
398 | bytes: stringify, |
|
399 | bytes: stringify, | |
399 | date: unwrapdate, |
|
400 | date: unwrapdate, | |
400 | int: unwrapinteger, |
|
401 | int: unwrapinteger, | |
401 | } |
|
402 | } | |
402 |
|
403 | |||
403 | def unwrapastype(context, mapping, thing, typ): |
|
404 | def unwrapastype(context, mapping, thing, typ): | |
404 | """Move the inner value object out of the wrapper and coerce its type""" |
|
405 | """Move the inner value object out of the wrapper and coerce its type""" | |
405 | try: |
|
406 | try: | |
406 | f = _unwrapfuncbytype[typ] |
|
407 | f = _unwrapfuncbytype[typ] | |
407 | except KeyError: |
|
408 | except KeyError: | |
408 | raise error.ProgrammingError('invalid type specified: %r' % typ) |
|
409 | raise error.ProgrammingError('invalid type specified: %r' % typ) | |
409 | return f(context, mapping, thing) |
|
410 | return f(context, mapping, thing) | |
410 |
|
411 | |||
411 | def runinteger(context, mapping, data): |
|
412 | def runinteger(context, mapping, data): | |
412 | return int(data) |
|
413 | return int(data) | |
413 |
|
414 | |||
414 | def runstring(context, mapping, data): |
|
415 | def runstring(context, mapping, data): | |
415 | return data |
|
416 | return data | |
416 |
|
417 | |||
417 | def _recursivesymbolblocker(key): |
|
418 | def _recursivesymbolblocker(key): | |
418 | def showrecursion(**args): |
|
419 | def showrecursion(**args): | |
419 | raise error.Abort(_("recursive reference '%s' in template") % key) |
|
420 | raise error.Abort(_("recursive reference '%s' in template") % key) | |
420 | return showrecursion |
|
421 | return showrecursion | |
421 |
|
422 | |||
422 | def runsymbol(context, mapping, key, default=''): |
|
423 | def runsymbol(context, mapping, key, default=''): | |
423 | v = context.symbol(mapping, key) |
|
424 | v = context.symbol(mapping, key) | |
424 | if v is None: |
|
425 | if v is None: | |
425 | # put poison to cut recursion. we can't move this to parsing phase |
|
426 | # put poison to cut recursion. we can't move this to parsing phase | |
426 | # because "x = {x}" is allowed if "x" is a keyword. (issue4758) |
|
427 | # because "x = {x}" is allowed if "x" is a keyword. (issue4758) | |
427 | safemapping = mapping.copy() |
|
428 | safemapping = mapping.copy() | |
428 | safemapping[key] = _recursivesymbolblocker(key) |
|
429 | safemapping[key] = _recursivesymbolblocker(key) | |
429 | try: |
|
430 | try: | |
430 | v = context.process(key, safemapping) |
|
431 | v = context.process(key, safemapping) | |
431 | except TemplateNotFound: |
|
432 | except TemplateNotFound: | |
432 | v = default |
|
433 | v = default | |
433 | if callable(v) and getattr(v, '_requires', None) is None: |
|
434 | if callable(v) and getattr(v, '_requires', None) is None: | |
434 | # old templatekw: expand all keywords and resources |
|
435 | # old templatekw: expand all keywords and resources | |
435 | # (TODO: deprecate this after porting web template keywords to new API) |
|
436 | # (TODO: deprecate this after porting web template keywords to new API) | |
436 | props = {k: context._resources.lookup(context, mapping, k) |
|
437 | props = {k: context._resources.lookup(context, mapping, k) | |
437 | for k in context._resources.knownkeys()} |
|
438 | for k in context._resources.knownkeys()} | |
438 | # pass context to _showcompatlist() through templatekw._showlist() |
|
439 | # pass context to _showcompatlist() through templatekw._showlist() | |
439 | props['templ'] = context |
|
440 | props['templ'] = context | |
440 | props.update(mapping) |
|
441 | props.update(mapping) | |
441 | return v(**pycompat.strkwargs(props)) |
|
442 | return v(**pycompat.strkwargs(props)) | |
442 | if callable(v): |
|
443 | if callable(v): | |
443 | # new templatekw |
|
444 | # new templatekw | |
444 | try: |
|
445 | try: | |
445 | return v(context, mapping) |
|
446 | return v(context, mapping) | |
446 | except ResourceUnavailable: |
|
447 | except ResourceUnavailable: | |
447 | # unsupported keyword is mapped to empty just like unknown keyword |
|
448 | # unsupported keyword is mapped to empty just like unknown keyword | |
448 | return None |
|
449 | return None | |
449 | return v |
|
450 | return v | |
450 |
|
451 | |||
451 | def runtemplate(context, mapping, template): |
|
452 | def runtemplate(context, mapping, template): | |
452 | for arg in template: |
|
453 | for arg in template: | |
453 | yield evalrawexp(context, mapping, arg) |
|
454 | yield evalrawexp(context, mapping, arg) | |
454 |
|
455 | |||
455 | def runfilter(context, mapping, data): |
|
456 | def runfilter(context, mapping, data): | |
456 | arg, filt = data |
|
457 | arg, filt = data | |
457 | thing = evalrawexp(context, mapping, arg) |
|
458 | thing = evalrawexp(context, mapping, arg) | |
458 | intype = getattr(filt, '_intype', None) |
|
459 | intype = getattr(filt, '_intype', None) | |
459 | try: |
|
460 | try: | |
460 | thing = unwrapastype(context, mapping, thing, intype) |
|
461 | thing = unwrapastype(context, mapping, thing, intype) | |
461 | return filt(thing) |
|
462 | return filt(thing) | |
462 | except error.ParseError as e: |
|
463 | except error.ParseError as e: | |
463 | raise error.ParseError(bytes(e), hint=_formatfiltererror(arg, filt)) |
|
464 | raise error.ParseError(bytes(e), hint=_formatfiltererror(arg, filt)) | |
464 |
|
465 | |||
465 | def _formatfiltererror(arg, filt): |
|
466 | def _formatfiltererror(arg, filt): | |
466 | fn = pycompat.sysbytes(filt.__name__) |
|
467 | fn = pycompat.sysbytes(filt.__name__) | |
467 | sym = findsymbolicname(arg) |
|
468 | sym = findsymbolicname(arg) | |
468 | if not sym: |
|
469 | if not sym: | |
469 | return _("incompatible use of template filter '%s'") % fn |
|
470 | return _("incompatible use of template filter '%s'") % fn | |
470 | return (_("template filter '%s' is not compatible with keyword '%s'") |
|
471 | return (_("template filter '%s' is not compatible with keyword '%s'") | |
471 | % (fn, sym)) |
|
472 | % (fn, sym)) | |
472 |
|
473 | |||
473 | def runmap(context, mapping, data): |
|
474 | def runmap(context, mapping, data): | |
474 | darg, targ = data |
|
475 | darg, targ = data | |
475 | d = evalrawexp(context, mapping, darg) |
|
476 | d = evalrawexp(context, mapping, darg) | |
476 | if util.safehasattr(d, 'itermaps'): |
|
477 | if util.safehasattr(d, 'itermaps'): | |
477 | diter = d.itermaps() |
|
478 | diter = d.itermaps() | |
478 | else: |
|
479 | else: | |
479 | try: |
|
480 | try: | |
480 | diter = iter(d) |
|
481 | diter = iter(d) | |
481 | except TypeError: |
|
482 | except TypeError: | |
482 | sym = findsymbolicname(darg) |
|
483 | sym = findsymbolicname(darg) | |
483 | if sym: |
|
484 | if sym: | |
484 | raise error.ParseError(_("keyword '%s' is not iterable") % sym) |
|
485 | raise error.ParseError(_("keyword '%s' is not iterable") % sym) | |
485 | else: |
|
486 | else: | |
486 | raise error.ParseError(_("%r is not iterable") % d) |
|
487 | raise error.ParseError(_("%r is not iterable") % d) | |
487 |
|
488 | |||
488 | for i, v in enumerate(diter): |
|
489 | for i, v in enumerate(diter): | |
489 | if isinstance(v, dict): |
|
490 | if isinstance(v, dict): | |
490 | lm = context.overlaymap(mapping, v) |
|
491 | lm = context.overlaymap(mapping, v) | |
491 | lm['index'] = i |
|
492 | lm['index'] = i | |
492 | yield evalrawexp(context, lm, targ) |
|
493 | yield evalrawexp(context, lm, targ) | |
493 | else: |
|
494 | else: | |
494 | # v is not an iterable of dicts, this happen when 'key' |
|
495 | # v is not an iterable of dicts, this happen when 'key' | |
495 | # has been fully expanded already and format is useless. |
|
496 | # has been fully expanded already and format is useless. | |
496 | # If so, return the expanded value. |
|
497 | # If so, return the expanded value. | |
497 | yield v |
|
498 | yield v | |
498 |
|
499 | |||
499 | def runmember(context, mapping, data): |
|
500 | def runmember(context, mapping, data): | |
500 | darg, memb = data |
|
501 | darg, memb = data | |
501 | d = evalrawexp(context, mapping, darg) |
|
502 | d = evalrawexp(context, mapping, darg) | |
502 | if util.safehasattr(d, 'tomap'): |
|
503 | if util.safehasattr(d, 'tomap'): | |
503 | lm = context.overlaymap(mapping, d.tomap()) |
|
504 | lm = context.overlaymap(mapping, d.tomap()) | |
504 | return runsymbol(context, lm, memb) |
|
505 | return runsymbol(context, lm, memb) | |
505 | if util.safehasattr(d, 'get'): |
|
506 | if util.safehasattr(d, 'get'): | |
506 | return getdictitem(d, memb) |
|
507 | return getdictitem(d, memb) | |
507 |
|
508 | |||
508 | sym = findsymbolicname(darg) |
|
509 | sym = findsymbolicname(darg) | |
509 | if sym: |
|
510 | if sym: | |
510 | raise error.ParseError(_("keyword '%s' has no member") % sym) |
|
511 | raise error.ParseError(_("keyword '%s' has no member") % sym) | |
511 | else: |
|
512 | else: | |
512 | raise error.ParseError(_("%r has no member") % pycompat.bytestr(d)) |
|
513 | raise error.ParseError(_("%r has no member") % pycompat.bytestr(d)) | |
513 |
|
514 | |||
514 | def runnegate(context, mapping, data): |
|
515 | def runnegate(context, mapping, data): | |
515 | data = evalinteger(context, mapping, data, |
|
516 | data = evalinteger(context, mapping, data, | |
516 | _('negation needs an integer argument')) |
|
517 | _('negation needs an integer argument')) | |
517 | return -data |
|
518 | return -data | |
518 |
|
519 | |||
519 | def runarithmetic(context, mapping, data): |
|
520 | def runarithmetic(context, mapping, data): | |
520 | func, left, right = data |
|
521 | func, left, right = data | |
521 | left = evalinteger(context, mapping, left, |
|
522 | left = evalinteger(context, mapping, left, | |
522 | _('arithmetic only defined on integers')) |
|
523 | _('arithmetic only defined on integers')) | |
523 | right = evalinteger(context, mapping, right, |
|
524 | right = evalinteger(context, mapping, right, | |
524 | _('arithmetic only defined on integers')) |
|
525 | _('arithmetic only defined on integers')) | |
525 | try: |
|
526 | try: | |
526 | return func(left, right) |
|
527 | return func(left, right) | |
527 | except ZeroDivisionError: |
|
528 | except ZeroDivisionError: | |
528 | raise error.Abort(_('division by zero is not defined')) |
|
529 | raise error.Abort(_('division by zero is not defined')) | |
529 |
|
530 | |||
530 | def getdictitem(dictarg, key): |
|
531 | def getdictitem(dictarg, key): | |
531 | val = dictarg.get(key) |
|
532 | val = dictarg.get(key) | |
532 | if val is None: |
|
533 | if val is None: | |
533 | return |
|
534 | return | |
534 | return wraphybridvalue(dictarg, key, val) |
|
535 | return wraphybridvalue(dictarg, key, val) |
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