Mercurial > hg
annotate mercurial/revsetlang.py @ 34033:d37f1bb68169
filemerge: move a util copy call to filectx.write
This way a future in-memory-merge context can intercept them.
Differential Revision: https://phab.mercurial-scm.org/D400
author | Phil Cohen <phillco@fb.com> |
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date | Thu, 31 Aug 2017 11:28:59 -0700 |
parents | 37b82485097f |
children | b862e6fca7ac |
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1 # revsetlang.py - parser, tokenizer and utility for revision set language |
11275 | 2 # |
3 # Copyright 2010 Matt Mackall <mpm@selenic.com> | |
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 | |
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8 from __future__ import absolute_import |
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9 |
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10 import string |
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11 |
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12 from .i18n import _ |
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13 from . import ( |
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14 error, |
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15 node, |
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16 parser, |
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17 pycompat, |
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18 util, |
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19 ) |
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21 elements = { | |
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22 # token-type: binding-strength, primary, prefix, infix, suffix |
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23 "(": (21, None, ("group", 1, ")"), ("func", 1, ")"), None), |
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24 "[": (21, None, None, ("subscript", 1, "]"), None), |
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25 "#": (21, None, None, ("relation", 21), None), |
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26 "##": (20, None, None, ("_concat", 20), None), |
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27 "~": (18, None, None, ("ancestor", 18), None), |
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28 "^": (18, None, None, ("parent", 18), "parentpost"), |
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29 "-": (5, None, ("negate", 19), ("minus", 5), None), |
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30 "::": (17, None, ("dagrangepre", 17), ("dagrange", 17), "dagrangepost"), |
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31 "..": (17, None, ("dagrangepre", 17), ("dagrange", 17), "dagrangepost"), |
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32 ":": (15, "rangeall", ("rangepre", 15), ("range", 15), "rangepost"), |
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33 "not": (10, None, ("not", 10), None, None), |
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34 "!": (10, None, ("not", 10), None, None), |
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35 "and": (5, None, None, ("and", 5), None), |
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36 "&": (5, None, None, ("and", 5), None), |
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37 "%": (5, None, None, ("only", 5), "onlypost"), |
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38 "or": (4, None, None, ("or", 4), None), |
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39 "|": (4, None, None, ("or", 4), None), |
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40 "+": (4, None, None, ("or", 4), None), |
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41 "=": (3, None, None, ("keyvalue", 3), None), |
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42 ",": (2, None, None, ("list", 2), None), |
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43 ")": (0, None, None, None, None), |
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44 "]": (0, None, None, None, None), |
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45 "symbol": (0, "symbol", None, None, None), |
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46 "string": (0, "string", None, None, None), |
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47 "end": (0, None, None, None, None), |
11275 | 48 } |
49 | |
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50 keywords = {'and', 'or', 'not'} |
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52 _quoteletters = {'"', "'"} |
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53 _simpleopletters = set(pycompat.iterbytestr("()[]#:=,-|&+!~^%")) |
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54 |
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55 # default set of valid characters for the initial letter of symbols |
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56 _syminitletters = set(pycompat.iterbytestr( |
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57 string.ascii_letters.encode('ascii') + |
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58 string.digits.encode('ascii') + |
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59 '._@')) | set(map(pycompat.bytechr, xrange(128, 256))) |
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60 |
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61 # default set of valid characters for non-initial letters of symbols |
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62 _symletters = _syminitletters | set(pycompat.iterbytestr('-/')) |
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63 |
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64 def tokenize(program, lookup=None, syminitletters=None, symletters=None): |
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65 ''' |
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66 Parse a revset statement into a stream of tokens |
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67 |
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68 ``syminitletters`` is the set of valid characters for the initial |
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69 letter of symbols. |
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70 |
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71 By default, character ``c`` is recognized as valid for initial |
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72 letter of symbols, if ``c.isalnum() or c in '._@' or ord(c) > 127``. |
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73 |
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74 ``symletters`` is the set of valid characters for non-initial |
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75 letters of symbols. |
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76 |
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77 By default, character ``c`` is recognized as valid for non-initial |
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78 letters of symbols, if ``c.isalnum() or c in '-._/@' or ord(c) > 127``. |
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79 |
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80 Check that @ is a valid unquoted token character (issue3686): |
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81 >>> list(tokenize("@::")) |
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82 [('symbol', '@', 0), ('::', None, 1), ('end', None, 3)] |
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83 |
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84 ''' |
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85 program = pycompat.bytestr(program) |
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86 if syminitletters is None: |
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87 syminitletters = _syminitletters |
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88 if symletters is None: |
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89 symletters = _symletters |
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90 |
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91 if program and lookup: |
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92 # attempt to parse old-style ranges first to deal with |
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93 # things like old-tag which contain query metacharacters |
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94 parts = program.split(':', 1) |
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95 if all(lookup(sym) for sym in parts if sym): |
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96 if parts[0]: |
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97 yield ('symbol', parts[0], 0) |
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98 if len(parts) > 1: |
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99 s = len(parts[0]) |
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100 yield (':', None, s) |
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101 if parts[1]: |
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102 yield ('symbol', parts[1], s + 1) |
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103 yield ('end', None, len(program)) |
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104 return |
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105 |
11275 | 106 pos, l = 0, len(program) |
107 while pos < l: | |
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108 c = program[pos] |
11275 | 109 if c.isspace(): # skip inter-token whitespace |
110 pass | |
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111 elif c == ':' and program[pos:pos + 2] == '::': # look ahead carefully |
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112 yield ('::', None, pos) |
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113 pos += 1 # skip ahead |
11275 | 114 elif c == '.' and program[pos:pos + 2] == '..': # look ahead carefully |
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115 yield ('..', None, pos) |
11275 | 116 pos += 1 # skip ahead |
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117 elif c == '#' and program[pos:pos + 2] == '##': # look ahead carefully |
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118 yield ('##', None, pos) |
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119 pos += 1 # skip ahead |
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120 elif c in _simpleopletters: # handle simple operators |
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121 yield (c, None, pos) |
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122 elif (c in _quoteletters or c == 'r' and |
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revset: support raw string literals
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123 program[pos:pos + 2] in ("r'", 'r"')): # handle quoted strings |
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124 if c == 'r': |
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125 pos += 1 |
31441
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126 c = program[pos] |
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127 decode = lambda x: x |
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128 else: |
26232
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129 decode = parser.unescapestr |
11275 | 130 pos += 1 |
131 s = pos | |
132 while pos < l: # find closing quote | |
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133 d = program[pos] |
11275 | 134 if d == '\\': # skip over escaped characters |
135 pos += 2 | |
136 continue | |
137 if d == c: | |
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138 yield ('string', decode(program[s:pos]), s) |
11275 | 139 break |
140 pos += 1 | |
141 else: | |
11383
de544774ebea
revset: all your error messages are belong to _
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142 raise error.ParseError(_("unterminated string"), s) |
16683 | 143 # gather up a symbol/keyword |
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revset: make tokenize extensible to parse alias declarations and definitions
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144 elif c in syminitletters: |
11275 | 145 s = pos |
146 pos += 1 | |
147 while pos < l: # find end of symbol | |
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148 d = program[pos] |
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149 if d not in symletters: |
11275 | 150 break |
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151 if d == '.' and program[pos - 1] == '.': # special case for .. |
11275 | 152 pos -= 1 |
153 break | |
154 pos += 1 | |
155 sym = program[s:pos] | |
156 if sym in keywords: # operator keywords | |
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157 yield (sym, None, s) |
20780
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158 elif '-' in sym: |
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159 # some jerk gave us foo-bar-baz, try to check if it's a symbol |
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160 if lookup and lookup(sym): |
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161 # looks like a real symbol |
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162 yield ('symbol', sym, s) |
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163 else: |
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164 # looks like an expression |
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165 parts = sym.split('-') |
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166 for p in parts[:-1]: |
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167 if p: # possible consecutive - |
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168 yield ('symbol', p, s) |
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169 s += len(p) |
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170 yield ('-', None, pos) |
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171 s += 1 |
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172 if parts[-1]: # possible trailing - |
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173 yield ('symbol', parts[-1], s) |
11275 | 174 else: |
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175 yield ('symbol', sym, s) |
11275 | 176 pos -= 1 |
177 else: | |
24708
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revsets: more informative syntax error message
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178 raise error.ParseError(_("syntax error in revset '%s'") % |
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179 program, pos) |
11275 | 180 pos += 1 |
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181 yield ('end', None, pos) |
11275 | 182 |
183 # helpers | |
184 | |
30802
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185 _notset = object() |
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186 |
29441
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187 def getsymbol(x): |
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188 if x and x[0] == 'symbol': |
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189 return x[1] |
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190 raise error.ParseError(_('not a symbol')) |
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191 |
11275 | 192 def getstring(x, err): |
11406
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revset: fix up contains/getstring when no args passed
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193 if x and (x[0] == 'string' or x[0] == 'symbol'): |
11275 | 194 return x[1] |
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195 raise error.ParseError(err) |
11275 | 196 |
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197 def getinteger(x, err, default=_notset): |
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198 if not x and default is not _notset: |
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199 return default |
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200 try: |
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201 return int(getstring(x, err)) |
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202 except ValueError: |
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203 raise error.ParseError(err) |
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204 |
31997
11f501f0a213
revsetlang: add a getboolean helper function
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205 def getboolean(x, err): |
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revsetlang: add a getboolean helper function
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206 value = util.parsebool(getsymbol(x)) |
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207 if value is not None: |
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208 return value |
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209 raise error.ParseError(err) |
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210 |
11275 | 211 def getlist(x): |
212 if not x: | |
213 return [] | |
214 if x[0] == 'list': | |
27987
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revset: flatten chained 'list' operations (aka function args) (issue5072)
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|
215 return list(x[1:]) |
11275 | 216 return [x] |
217 | |
30804
4227f80f72b2
revset: abuse x:y syntax to specify line range of followlines()
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218 def getrange(x, err): |
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219 if not x: |
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220 raise error.ParseError(err) |
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|
221 op = x[0] |
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222 if op == 'range': |
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223 return x[1], x[2] |
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224 elif op == 'rangepre': |
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225 return None, x[1] |
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226 elif op == 'rangepost': |
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227 return x[1], None |
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228 elif op == 'rangeall': |
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229 return None, None |
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230 raise error.ParseError(err) |
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|
231 |
11339
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revset: improve filter argument handling
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|
232 def getargs(x, min, max, err): |
11275 | 233 l = getlist(x) |
16161
5a627b49b4d9
graphlog: paths/-I/-X handling requires a new revset
Patrick Mezard <patrick@mezard.eu>
parents:
16096
diff
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|
234 if len(l) < min or (max >= 0 and len(l) > max): |
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235 raise error.ParseError(err) |
11275 | 236 return l |
237 | |
25767
026105c442d7
revset: rename getkwargs() to getargsdict()
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238 def getargsdict(x, funcname, keys): |
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239 return parser.buildargsdict(getlist(x), funcname, parser.splitargspec(keys), |
25705
48919d246a47
revset: add function to build dict of positional and keyword arguments
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|
240 keyvaluenode='keyvalue', keynode='symbol') |
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241 |
32912
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242 def _isnamedfunc(x, funcname): |
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243 """Check if given tree matches named function""" |
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244 return x and x[0] == 'func' and getsymbol(x[1]) == funcname |
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|
245 |
32913
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246 def _isposargs(x, n): |
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247 """Check if given tree is n-length list of positional arguments""" |
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248 l = getlist(x) |
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249 return len(l) == n and all(y and y[0] != 'keyvalue' for y in l) |
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250 |
32912
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251 def _matchnamedfunc(x, funcname): |
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252 """Return args tree if given tree matches named function; otherwise None |
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253 |
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|
254 This can't be used for testing a nullary function since its args tree |
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|
255 is also None. Use _isnamedfunc() instead. |
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256 """ |
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|
257 if not _isnamedfunc(x, funcname): |
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|
258 return |
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|
259 return x[2] |
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260 |
29117
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|
261 def _matchonly(revs, bases): |
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262 """ |
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|
263 >>> f = lambda *args: _matchonly(*map(parse, args)) |
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264 >>> f('ancestors(A)', 'not ancestors(B)') |
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265 ('list', ('symbol', 'A'), ('symbol', 'B')) |
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266 """ |
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267 ta = _matchnamedfunc(revs, 'ancestors') |
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268 tb = bases and bases[0] == 'not' and _matchnamedfunc(bases[1], 'ancestors') |
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269 if _isposargs(ta, 1) and _isposargs(tb, 1): |
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270 return ('list', ta, tb) |
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271 |
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272 def _fixops(x): |
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273 """Rewrite raw parsed tree to resolve ambiguous syntax which cannot be |
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274 handled well by our simple top-down parser""" |
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275 if not isinstance(x, tuple): |
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276 return x |
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277 |
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278 op = x[0] |
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279 if op == 'parent': |
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280 # x^:y means (x^) : y, not x ^ (:y) |
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281 # x^: means (x^) :, not x ^ (:) |
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282 post = ('parentpost', x[1]) |
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283 if x[2][0] == 'dagrangepre': |
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284 return _fixops(('dagrange', post, x[2][1])) |
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285 elif x[2][0] == 'rangepre': |
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286 return _fixops(('range', post, x[2][1])) |
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287 elif x[2][0] == 'rangeall': |
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288 return _fixops(('rangepost', post)) |
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289 elif op == 'or': |
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290 # make number of arguments deterministic: |
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291 # x + y + z -> (or x y z) -> (or (list x y z)) |
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292 return (op, _fixops(('list',) + x[1:])) |
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293 elif op == 'subscript' and x[1][0] == 'relation': |
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294 # x#y[z] ternary |
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295 return _fixops(('relsubscript', x[1][1], x[1][2], x[2])) |
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296 |
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297 return (op,) + tuple(_fixops(y) for y in x[1:]) |
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298 |
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299 def _analyze(x): |
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300 if x is None: |
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301 return x |
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302 |
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303 op = x[0] |
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304 if op == 'minus': |
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305 return _analyze(('and', x[1], ('not', x[2]))) |
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306 elif op == 'only': |
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307 t = ('func', ('symbol', 'only'), ('list', x[1], x[2])) |
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308 return _analyze(t) |
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309 elif op == 'onlypost': |
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310 return _analyze(('func', ('symbol', 'only'), x[1])) |
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311 elif op == 'dagrangepre': |
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312 return _analyze(('func', ('symbol', 'ancestors'), x[1])) |
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313 elif op == 'dagrangepost': |
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314 return _analyze(('func', ('symbol', 'descendants'), x[1])) |
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315 elif op == 'negate': |
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316 s = getstring(x[1], _("can't negate that")) |
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317 return _analyze(('string', '-' + s)) |
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318 elif op in ('string', 'symbol'): |
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319 return x |
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320 elif op == 'rangeall': |
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321 return (op, None) |
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322 elif op in {'or', 'not', 'rangepre', 'rangepost', 'parentpost'}: |
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323 return (op, _analyze(x[1])) |
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324 elif op == 'group': |
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325 return _analyze(x[1]) |
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326 elif op in {'and', 'dagrange', 'range', 'parent', 'ancestor', 'relation', |
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327 'subscript'}: |
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328 ta = _analyze(x[1]) |
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329 tb = _analyze(x[2]) |
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330 return (op, ta, tb) |
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331 elif op == 'relsubscript': |
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332 ta = _analyze(x[1]) |
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333 tb = _analyze(x[2]) |
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334 tc = _analyze(x[3]) |
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335 return (op, ta, tb, tc) |
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336 elif op == 'list': |
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337 return (op,) + tuple(_analyze(y) for y in x[1:]) |
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338 elif op == 'keyvalue': |
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339 return (op, x[1], _analyze(x[2])) |
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340 elif op == 'func': |
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341 return (op, x[1], _analyze(x[2])) |
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342 raise ValueError('invalid operator %r' % op) |
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343 |
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344 def analyze(x): |
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345 """Transform raw parsed tree to evaluatable tree which can be fed to |
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346 optimize() or getset() |
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347 |
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348 All pseudo operations should be mapped to real operations or functions |
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349 defined in methods or symbols table respectively. |
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350 """ |
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351 return _analyze(x) |
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352 |
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353 def _optimize(x, small): |
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354 if x is None: |
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355 return 0, x |
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356 |
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358 if small: | |
359 smallbonus = .5 | |
360 | |
361 op = x[0] | |
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362 if op in ('string', 'symbol'): |
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363 return smallbonus, x # single revisions are small |
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364 elif op == 'and': |
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365 wa, ta = _optimize(x[1], True) |
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366 wb, tb = _optimize(x[2], True) |
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367 w = min(wa, wb) |
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368 |
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369 # (::x and not ::y)/(not ::y and ::x) have a fast path |
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370 tm = _matchonly(ta, tb) or _matchonly(tb, ta) |
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371 if tm: |
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372 return w, ('func', ('symbol', 'only'), tm) |
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373 |
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374 if tb is not None and tb[0] == 'not': |
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375 return wa, ('difference', ta, tb[1]) |
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376 if wa > wb: |
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377 op = 'andsmally' |
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378 return w, (op, ta, tb) |
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379 elif op == 'or': |
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380 # fast path for machine-generated expression, that is likely to have |
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381 # lots of trivial revisions: 'a + b + c()' to '_list(a b) + c()' |
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382 ws, ts, ss = [], [], [] |
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383 def flushss(): |
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384 if not ss: |
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385 return |
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386 if len(ss) == 1: |
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387 w, t = ss[0] |
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388 else: |
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389 s = '\0'.join(t[1] for w, t in ss) |
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390 y = ('func', ('symbol', '_list'), ('string', s)) |
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391 w, t = _optimize(y, False) |
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392 ws.append(w) |
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393 ts.append(t) |
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394 del ss[:] |
29929
b3845cab4ddc
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395 for y in getlist(x[1]): |
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396 w, t = _optimize(y, False) |
25996
b12e00a05d57
revset: prevent crash caused by empty group expression while optimizing "or"
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397 if t is not None and (t[0] == 'string' or t[0] == 'symbol'): |
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398 ss.append((w, t)) |
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399 continue |
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400 flushss() |
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401 ws.append(w) |
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402 ts.append(t) |
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403 flushss() |
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404 if len(ts) == 1: |
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405 return ws[0], ts[0] # 'or' operation is fully optimized out |
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406 return max(ws), (op, ('list',) + tuple(ts)) |
11275 | 407 elif op == 'not': |
25191
08d1ef09ed37
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408 # Optimize not public() to _notpublic() because we have a fast version |
29932
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409 if x[1][:3] == ('func', ('symbol', 'public'), None): |
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410 newsym = ('func', ('symbol', '_notpublic'), None) |
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411 o = _optimize(newsym, not small) |
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412 return o[0], o[1] |
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413 else: |
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414 o = _optimize(x[1], not small) |
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415 return o[0], (op, o[1]) |
30803
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416 elif op == 'rangeall': |
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417 return smallbonus, x |
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418 elif op in ('rangepre', 'rangepost', 'parentpost'): |
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419 o = _optimize(x[1], small) |
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420 return o[0], (op, o[1]) |
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421 elif op in ('dagrange', 'range'): |
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422 wa, ta = _optimize(x[1], small) |
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423 wb, tb = _optimize(x[2], small) |
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424 return wa + wb, (op, ta, tb) |
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425 elif op in ('parent', 'ancestor', 'relation', 'subscript'): |
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426 w, t = _optimize(x[1], small) |
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427 return w, (op, t, x[2]) |
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428 elif op == 'relsubscript': |
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429 w, t = _optimize(x[1], small) |
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430 return w, (op, t, x[2], x[3]) |
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431 elif op == 'list': |
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432 ws, ts = zip(*(_optimize(y, small) for y in x[1:])) |
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433 return sum(ws), (op,) + ts |
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434 elif op == 'keyvalue': |
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435 w, t = _optimize(x[2], small) |
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436 return w, (op, x[1], t) |
11275 | 437 elif op == 'func': |
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9e8d258708bb
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438 f = getsymbol(x[1]) |
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439 wa, ta = _optimize(x[2], small) |
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440 if f in ('author', 'branch', 'closed', 'date', 'desc', 'file', 'grep', |
30205
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441 'keyword', 'outgoing', 'user', 'destination'): |
11279
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442 w = 10 # slow |
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443 elif f in ('modifies', 'adds', 'removes'): |
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444 w = 30 # slower |
11275 | 445 elif f == "contains": |
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446 w = 100 # very slow |
11275 | 447 elif f == "ancestor": |
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448 w = 1 * smallbonus |
30700
323f0c4b43f4
revset: categorize wdir() as very fast function
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449 elif f in ('reverse', 'limit', 'first', 'wdir', '_intlist'): |
11279
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450 w = 0 |
29898
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451 elif f == "sort": |
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452 w = 10 # assume most sorts look at changelog |
11275 | 453 else: |
11279
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|
454 w = 1 |
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|
455 return w + wa, (op, x[1], ta) |
29896
104914b03b83
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|
456 raise ValueError('invalid operator %r' % op) |
11275 | 457 |
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458 def optimize(tree): |
29905
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459 """Optimize evaluatable tree |
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|
460 |
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461 All pseudo operations should be transformed beforehand. |
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462 """ |
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463 _weight, newtree = _optimize(tree, small=True) |
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464 return newtree |
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|
465 |
23845
0a7fd54d4e60
revset: introduce "_parsealiasdecl" to parse alias declarations strictly
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|
466 # the set of valid characters for the initial letter of symbols in |
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|
467 # alias declarations and definitions |
30071
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30056
diff
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|
468 _aliassyminitletters = _syminitletters | set(pycompat.sysstr('$')) |
23845
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|
469 |
29073
81bac118f9e2
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|
470 def _parsewith(spec, lookup=None, syminitletters=None): |
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471 """Generate a parse tree of given spec with given tokenizing options |
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|
472 |
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473 >>> _parsewith('foo($1)', syminitletters=_aliassyminitletters) |
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474 ('func', ('symbol', 'foo'), ('symbol', '$1')) |
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|
475 >>> _parsewith('$1') |
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|
476 Traceback (most recent call last): |
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|
477 ... |
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|
478 ParseError: ("syntax error in revset '$1'", 0) |
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|
479 >>> _parsewith('foo bar') |
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|
480 Traceback (most recent call last): |
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|
481 ... |
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|
482 ParseError: ('invalid token', 4) |
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|
483 """ |
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|
484 p = parser.parser(elements) |
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|
485 tree, pos = p.parse(tokenize(spec, lookup=lookup, |
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|
486 syminitletters=syminitletters)) |
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|
487 if pos != len(spec): |
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|
488 raise error.ParseError(_('invalid token'), pos) |
29769
abe4eecc3253
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diff
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|
489 return _fixops(parser.simplifyinfixops(tree, ('list', 'or'))) |
29073
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|
490 |
28870
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|
491 class _aliasrules(parser.basealiasrules): |
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492 """Parsing and expansion rule set of revset aliases""" |
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|
493 _section = _('revset alias') |
29074
e7c679738503
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|
494 |
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|
495 @staticmethod |
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|
496 def _parse(spec): |
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|
497 """Parse alias declaration/definition ``spec`` |
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diff
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|
498 |
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diff
changeset
|
499 This allows symbol names to use also ``$`` as an initial letter |
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500 (for backward compatibility), and callers of this function should |
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501 examine whether ``$`` is used also for unexpected symbols or not. |
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502 """ |
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503 return _parsewith(spec, syminitletters=_aliassyminitletters) |
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504 |
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505 @staticmethod |
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506 def _trygetfunc(tree): |
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507 if tree[0] == 'func' and tree[1][0] == 'symbol': |
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508 return tree[1][1], getlist(tree[2]) |
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509 |
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510 def expandaliases(tree, aliases, warn=None): |
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511 """Expand aliases in a tree, aliases is a list of (name, value) tuples""" |
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512 aliases = _aliasrules.buildmap(aliases) |
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513 tree = _aliasrules.expand(aliases, tree) |
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514 # warn about problematic (but not referred) aliases |
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515 if warn is not None: |
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516 for name, alias in sorted(aliases.iteritems()): |
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517 if alias.error and not alias.warned: |
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518 warn(_('warning: %s\n') % (alias.error)) |
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519 alias.warned = True |
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520 return tree |
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521 |
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522 def foldconcat(tree): |
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523 """Fold elements to be concatenated by `##` |
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524 """ |
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525 if not isinstance(tree, tuple) or tree[0] in ('string', 'symbol'): |
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526 return tree |
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527 if tree[0] == '_concat': |
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528 pending = [tree] |
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529 l = [] |
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530 while pending: |
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531 e = pending.pop() |
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532 if e[0] == '_concat': |
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533 pending.extend(reversed(e[1:])) |
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534 elif e[0] in ('string', 'symbol'): |
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535 l.append(e[1]) |
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536 else: |
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537 msg = _("\"##\" can't concatenate \"%s\" element") % (e[0]) |
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538 raise error.ParseError(msg) |
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539 return ('string', ''.join(l)) |
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540 else: |
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541 return tuple(foldconcat(t) for t in tree) |
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542 |
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543 def parse(spec, lookup=None): |
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544 return _parsewith(spec, lookup=lookup) |
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545 |
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546 def _quote(s): |
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547 r"""Quote a value in order to make it safe for the revset engine. |
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548 |
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549 >>> _quote('asdf') |
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550 "'asdf'" |
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551 >>> _quote("asdf'\"") |
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552 '\'asdf\\\'"\'' |
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553 >>> _quote('asdf\'') |
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554 "'asdf\\''" |
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555 >>> _quote(1) |
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556 "'1'" |
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557 """ |
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558 return "'%s'" % util.escapestr(pycompat.bytestr(s)) |
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559 |
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560 def formatspec(expr, *args): |
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561 ''' |
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562 This is a convenience function for using revsets internally, and |
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563 escapes arguments appropriately. Aliases are intentionally ignored |
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564 so that intended expression behavior isn't accidentally subverted. |
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565 |
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566 Supported arguments: |
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567 |
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568 %r = revset expression, parenthesized |
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569 %d = int(arg), no quoting |
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570 %s = string(arg), escaped and single-quoted |
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571 %b = arg.branch(), escaped and single-quoted |
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572 %n = hex(arg), single-quoted |
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573 %% = a literal '%' |
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574 |
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575 Prefixing the type with 'l' specifies a parenthesized list of that type. |
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576 |
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577 >>> formatspec('%r:: and %lr', '10 or 11', ("this()", "that()")) |
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578 '(10 or 11):: and ((this()) or (that()))' |
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579 >>> formatspec('%d:: and not %d::', 10, 20) |
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580 '10:: and not 20::' |
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581 >>> formatspec('%ld or %ld', [], [1]) |
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582 "_list('') or 1" |
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583 >>> formatspec('keyword(%s)', 'foo\\xe9') |
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584 "keyword('foo\\\\xe9')" |
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585 >>> b = lambda: 'default' |
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586 >>> b.branch = b |
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587 >>> formatspec('branch(%b)', b) |
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588 "branch('default')" |
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589 >>> formatspec('root(%ls)', ['a', 'b', 'c', 'd']) |
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590 "root(_list('a\\x00b\\x00c\\x00d'))" |
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591 ''' |
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592 |
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593 def argtype(c, arg): |
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594 if c == 'd': |
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595 return '%d' % int(arg) |
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596 elif c == 's': |
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597 return _quote(arg) |
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598 elif c == 'r': |
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599 parse(arg) # make sure syntax errors are confined |
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600 return '(%s)' % arg |
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601 elif c == 'n': |
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602 return _quote(node.hex(arg)) |
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603 elif c == 'b': |
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604 return _quote(arg.branch()) |
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605 |
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606 def listexp(s, t): |
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607 l = len(s) |
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608 if l == 0: |
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609 return "_list('')" |
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610 elif l == 1: |
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revset: balance %l or-expressions (issue3129)
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611 return argtype(t, s[0]) |
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revset: optimize building large lists in formatrevspec
Matt Mackall <mpm@selenic.com>
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612 elif t == 'd': |
31565
553ad16b274f
revsetlang: portably turn int into bytestring
Augie Fackler <augie@google.com>
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613 return "_intlist('%s')" % "\0".join('%d' % int(a) for a in s) |
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Matt Mackall <mpm@selenic.com>
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614 elif t == 's': |
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615 return "_list('%s')" % "\0".join(s) |
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616 elif t == 'n': |
20569
0d4be103c734
revset: added _hexlist method to replace _list for %ln
Lucas Moscovicz <lmoscovicz@fb.com>
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617 return "_hexlist('%s')" % "\0".join(node.hex(a) for a in s) |
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618 elif t == 'b': |
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619 return "_list('%s')" % "\0".join(a.branch() for a in s) |
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620 |
15791
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Use explicit integer division
Martin Geisler <mg@aragost.com>
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621 m = l // 2 |
15595
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revset: balance %l or-expressions (issue3129)
Matt Mackall <mpm@selenic.com>
parents:
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622 return '(%s or %s)' % (listexp(s[:m], t), listexp(s[m:], t)) |
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Matt Mackall <mpm@selenic.com>
parents:
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623 |
31440
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py3: use bytestr wrapper in revsetlang.formatspec()
Yuya Nishihara <yuya@tcha.org>
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624 expr = pycompat.bytestr(expr) |
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revset: add formatspec convenience query builder
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625 ret = '' |
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626 pos = 0 |
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627 arg = 0 |
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628 while pos < len(expr): |
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py3: use bytestr wrapper in revsetlang.formatspec()
Yuya Nishihara <yuya@tcha.org>
parents:
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629 c = expr[pos] |
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630 if c == '%': |
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631 pos += 1 |
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Yuya Nishihara <yuya@tcha.org>
parents:
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632 d = expr[pos] |
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633 if d == '%': |
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634 ret += d |
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revset: fix %r handling in formatspec
Matt Mackall <mpm@selenic.com>
parents:
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635 elif d in 'dsnbr': |
15140
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revset: add 'l' flag to formatspec for args
Matt Mackall <mpm@selenic.com>
parents:
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636 ret += argtype(d, args[arg]) |
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parents:
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637 arg += 1 |
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parents:
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638 elif d == 'l': |
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revset: add 'l' flag to formatspec for args
Matt Mackall <mpm@selenic.com>
parents:
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639 # a list of some type |
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640 pos += 1 |
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Yuya Nishihara <yuya@tcha.org>
parents:
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641 d = expr[pos] |
15596 | 642 ret += listexp(list(args[arg]), d) |
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643 arg += 1 |
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644 else: |
29389
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i18n: translate abort messages
liscju <piotr.listkiewicz@gmail.com>
parents:
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645 raise error.Abort(_('unexpected revspec format character %s') |
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i18n: translate abort messages
liscju <piotr.listkiewicz@gmail.com>
parents:
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646 % d) |
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647 else: |
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648 ret += c |
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649 pos += 1 |
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650 |
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651 return ret |
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652 |
16218
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debugrevspec: pretty print output
Patrick Mezard <patrick@mezard.eu>
parents:
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653 def prettyformat(tree): |
25253
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parser: move prettyformat() function from revset module
Yuya Nishihara <yuya@tcha.org>
parents:
25251
diff
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654 return parser.prettyformat(tree, ('string', 'symbol')) |
16218
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debugrevspec: pretty print output
Patrick Mezard <patrick@mezard.eu>
parents:
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655 |
19719
2f9d5c5256ea
revset: add helper function to get revset parse tree depth
Alexander Plavin <alexander@plav.in>
parents:
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diff
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656 def depth(tree): |
2f9d5c5256ea
revset: add helper function to get revset parse tree depth
Alexander Plavin <alexander@plav.in>
parents:
19706
diff
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657 if isinstance(tree, tuple): |
2f9d5c5256ea
revset: add helper function to get revset parse tree depth
Alexander Plavin <alexander@plav.in>
parents:
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658 return max(map(depth, tree)) + 1 |
2f9d5c5256ea
revset: add helper function to get revset parse tree depth
Alexander Plavin <alexander@plav.in>
parents:
19706
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659 else: |
2f9d5c5256ea
revset: add helper function to get revset parse tree depth
Alexander Plavin <alexander@plav.in>
parents:
19706
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660 return 0 |
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Alexander Plavin <alexander@plav.in>
parents:
19706
diff
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661 |
19720
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revset: add helper function to get functions used in a revset parse tree
Alexander Plavin <alexander@plav.in>
parents:
19719
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662 def funcsused(tree): |
f0b992a9be9c
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Alexander Plavin <alexander@plav.in>
parents:
19719
diff
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663 if not isinstance(tree, tuple) or tree[0] in ('string', 'symbol'): |
f0b992a9be9c
revset: add helper function to get functions used in a revset parse tree
Alexander Plavin <alexander@plav.in>
parents:
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664 return set() |
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revset: add helper function to get functions used in a revset parse tree
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parents:
19719
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665 else: |
f0b992a9be9c
revset: add helper function to get functions used in a revset parse tree
Alexander Plavin <alexander@plav.in>
parents:
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666 funcs = set() |
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parents:
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667 for s in tree[1:]: |
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668 funcs |= funcsused(s) |
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669 if tree[0] == 'func': |
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670 funcs.add(tree[1][1]) |
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671 return funcs |