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1 | 1 | # formatter.py - generic output formatting for mercurial |
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2 | 2 | # |
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3 | 3 | # Copyright 2012 Matt Mackall <mpm@selenic.com> |
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4 | 4 | # |
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5 | 5 | # This software may be used and distributed according to the terms of the |
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6 | 6 | # GNU General Public License version 2 or any later version. |
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7 | 7 | |
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8 | 8 | import cPickle |
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9 | 9 | from node import hex, short |
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10 | 10 | from i18n import _ |
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11 | 11 | import encoding, util |
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12 | 12 | import templater |
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13 | 13 | import os |
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14 | 14 | |
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15 | 15 | class baseformatter(object): |
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16 | 16 | def __init__(self, ui, topic, opts): |
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17 | 17 | self._ui = ui |
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18 | 18 | self._topic = topic |
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19 | 19 | self._style = opts.get("style") |
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20 | 20 | self._template = opts.get("template") |
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21 | 21 | self._item = None |
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22 | 22 | # function to convert node to string suitable for this output |
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23 | 23 | self.hexfunc = hex |
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24 | 24 | def __nonzero__(self): |
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25 | 25 | '''return False if we're not doing real templating so we can |
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26 | 26 | skip extra work''' |
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27 | 27 | return True |
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28 | 28 | def _showitem(self): |
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29 | 29 | '''show a formatted item once all data is collected''' |
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30 | 30 | pass |
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31 | 31 | def startitem(self): |
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32 | 32 | '''begin an item in the format list''' |
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33 | 33 | if self._item is not None: |
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34 | 34 | self._showitem() |
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35 | 35 | self._item = {} |
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36 | 36 | def data(self, **data): |
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37 | 37 | '''insert data into item that's not shown in default output''' |
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38 | 38 | self._item.update(data) |
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39 | 39 | def write(self, fields, deftext, *fielddata, **opts): |
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40 | 40 | '''do default text output while assigning data to item''' |
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41 | 41 | for k, v in zip(fields.split(), fielddata): |
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42 | 42 | self._item[k] = v |
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43 | 43 | def condwrite(self, cond, fields, deftext, *fielddata, **opts): |
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44 | 44 | '''do conditional write (primarily for plain formatter)''' |
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45 | 45 | for k, v in zip(fields.split(), fielddata): |
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46 | 46 | self._item[k] = v |
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47 | 47 | def plain(self, text, **opts): |
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48 | 48 | '''show raw text for non-templated mode''' |
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49 | 49 | pass |
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50 | 50 | def end(self): |
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51 | 51 | '''end output for the formatter''' |
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52 | 52 | if self._item is not None: |
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53 | 53 | self._showitem() |
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54 | 54 | |
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55 | 55 | class plainformatter(baseformatter): |
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56 | 56 | '''the default text output scheme''' |
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57 | 57 | def __init__(self, ui, topic, opts): |
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58 | 58 | baseformatter.__init__(self, ui, topic, opts) |
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59 | 59 | if ui.debugflag: |
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60 | 60 | self.hexfunc = hex |
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61 | 61 | else: |
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62 | 62 | self.hexfunc = short |
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63 | 63 | def __nonzero__(self): |
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64 | 64 | return False |
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65 | 65 | def startitem(self): |
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66 | 66 | pass |
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67 | 67 | def data(self, **data): |
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68 | 68 | pass |
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69 | 69 | def write(self, fields, deftext, *fielddata, **opts): |
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70 | 70 | self._ui.write(deftext % fielddata, **opts) |
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71 | 71 | def condwrite(self, cond, fields, deftext, *fielddata, **opts): |
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72 | 72 | '''do conditional write''' |
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73 | 73 | if cond: |
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74 | 74 | self._ui.write(deftext % fielddata, **opts) |
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75 | 75 | def plain(self, text, **opts): |
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76 | 76 | self._ui.write(text, **opts) |
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77 | 77 | def end(self): |
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78 | 78 | pass |
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79 | 79 | |
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80 | 80 | class debugformatter(baseformatter): |
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81 | 81 | def __init__(self, ui, topic, opts): |
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82 | 82 | baseformatter.__init__(self, ui, topic, opts) |
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83 | 83 | self._ui.write("%s = [\n" % self._topic) |
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84 | 84 | def _showitem(self): |
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85 | 85 | self._ui.write(" " + repr(self._item) + ",\n") |
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86 | 86 | def end(self): |
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87 | 87 | baseformatter.end(self) |
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88 | 88 | self._ui.write("]\n") |
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89 | 89 | |
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90 | 90 | class pickleformatter(baseformatter): |
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91 | 91 | def __init__(self, ui, topic, opts): |
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92 | 92 | baseformatter.__init__(self, ui, topic, opts) |
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93 | 93 | self._data = [] |
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94 | 94 | def _showitem(self): |
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95 | 95 | self._data.append(self._item) |
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96 | 96 | def end(self): |
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97 | 97 | baseformatter.end(self) |
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98 | 98 | self._ui.write(cPickle.dumps(self._data)) |
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99 | 99 | |
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100 | 100 | def _jsonifyobj(v): |
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101 | 101 | if isinstance(v, tuple): |
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102 | 102 | return '[' + ', '.join(_jsonifyobj(e) for e in v) + ']' |
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103 | 103 | elif v is None: |
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104 | 104 | return 'null' |
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105 | 105 | elif v is True: |
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106 | 106 | return 'true' |
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107 | 107 | elif v is False: |
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108 | 108 | return 'false' |
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109 | 109 | elif isinstance(v, (int, float)): |
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110 | 110 | return str(v) |
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111 | 111 | else: |
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112 | 112 | return '"%s"' % encoding.jsonescape(v) |
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113 | 113 | |
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114 | 114 | class jsonformatter(baseformatter): |
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115 | 115 | def __init__(self, ui, topic, opts): |
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116 | 116 | baseformatter.__init__(self, ui, topic, opts) |
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117 | 117 | self._ui.write("[") |
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118 | 118 | self._ui._first = True |
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119 | 119 | def _showitem(self): |
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120 | 120 | if self._ui._first: |
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121 | 121 | self._ui._first = False |
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122 | 122 | else: |
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123 | 123 | self._ui.write(",") |
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124 | 124 | |
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125 | 125 | self._ui.write("\n {\n") |
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126 | 126 | first = True |
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127 | 127 | for k, v in sorted(self._item.items()): |
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128 | 128 | if first: |
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129 | 129 | first = False |
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130 | 130 | else: |
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131 | 131 | self._ui.write(",\n") |
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132 | 132 | self._ui.write(' "%s": %s' % (k, _jsonifyobj(v))) |
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133 | 133 | self._ui.write("\n }") |
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134 | 134 | def end(self): |
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135 | 135 | baseformatter.end(self) |
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136 | 136 | self._ui.write("\n]\n") |
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137 | 137 | |
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138 | 138 | def lookuptemplate(ui, topic, tmpl): |
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139 | 139 | # looks like a literal template? |
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140 | 140 | if '{' in tmpl: |
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141 | 141 | return tmpl, None |
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142 | 142 | |
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143 | 143 | # perhaps a stock style? |
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144 | 144 | if not os.path.split(tmpl)[0]: |
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145 | 145 | mapname = (templater.templatepath('map-cmdline.' + tmpl) |
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146 | 146 | or templater.templatepath(tmpl)) |
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147 | 147 | if mapname and os.path.isfile(mapname): |
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148 | 148 | return None, mapname |
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149 | 149 | |
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150 | 150 | # perhaps it's a reference to [templates] |
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151 | 151 | t = ui.config('templates', tmpl) |
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152 | 152 | if t: |
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153 | 153 | try: |
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154 | 154 | tmpl = templater.unquotestring(t) |
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155 | 155 | except SyntaxError: |
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156 | 156 | tmpl = t |
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157 | 157 | return tmpl, None |
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158 | 158 | |
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159 | 159 | if tmpl == 'list': |
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160 | 160 | ui.write(_("available styles: %s\n") % templater.stylelist()) |
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161 | 161 | raise util.Abort(_("specify a template")) |
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162 | 162 | |
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163 | 163 | # perhaps it's a path to a map or a template |
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164 | 164 | if ('/' in tmpl or '\\' in tmpl) and os.path.isfile(tmpl): |
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165 | 165 | # is it a mapfile for a style? |
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166 | 166 | if os.path.basename(tmpl).startswith("map-"): |
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167 | 167 | return None, os.path.realpath(tmpl) |
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168 | 168 | tmpl = open(tmpl).read() |
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169 | 169 | return tmpl, None |
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170 | 170 | |
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171 | 171 | # constant string? |
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172 | 172 | return tmpl, None |
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173 | 173 | |
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174 | def gettemplater(ui, topic, spec): | |
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175 | tmpl, mapfile = lookuptemplate(ui, topic, spec) | |
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176 | t = templater.templater(mapfile, {}) | |
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177 | if tmpl: | |
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178 | t.cache[topic] = tmpl | |
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179 | return t | |
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180 | ||
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174 | 181 | def formatter(ui, topic, opts): |
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175 | 182 | template = opts.get("template", "") |
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176 | 183 | if template == "json": |
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177 | 184 | return jsonformatter(ui, topic, opts) |
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178 | 185 | elif template == "pickle": |
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179 | 186 | return pickleformatter(ui, topic, opts) |
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180 | 187 | elif template == "debug": |
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181 | 188 | return debugformatter(ui, topic, opts) |
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182 | 189 | elif template != "": |
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183 | 190 | raise util.Abort(_("custom templates not yet supported")) |
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184 | 191 | elif ui.configbool('ui', 'formatdebug'): |
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185 | 192 | return debugformatter(ui, topic, opts) |
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186 | 193 | elif ui.configbool('ui', 'formatjson'): |
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187 | 194 | return jsonformatter(ui, topic, opts) |
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188 | 195 | return plainformatter(ui, topic, opts) |
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