Complex classes like LogCommand often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use LogCommand, and based on these observations, apply Extract Interface, too.
1 | <?php |
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30 | class LogCommand extends AbstractCommand implements IAggregatorAwareCommand, IConfigAwareCommand |
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31 | { |
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32 | |||
33 | const SETTING_LOG_LIMIT = 'log.limit'; |
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34 | |||
35 | const SETTING_LOG_MERGE_CONFLICT_REGEXPS = 'log.merge-conflict-regexps'; |
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36 | |||
37 | /** |
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38 | * Revision list parser. |
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39 | * |
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40 | * @var RevisionListParser |
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41 | */ |
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42 | private $_revisionListParser; |
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43 | |||
44 | /** |
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45 | * Revision log |
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46 | * |
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47 | * @var RevisionLog |
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48 | */ |
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49 | private $_revisionLog; |
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50 | |||
51 | /** |
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52 | * Prepare dependencies. |
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53 | * |
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54 | * @return void |
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55 | */ |
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56 | protected function prepareDependencies() |
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64 | |||
65 | /** |
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66 | * {@inheritdoc} |
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67 | */ |
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68 | protected function configure() |
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69 | { |
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70 | $this->pathAcceptsUrl = true; |
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71 | |||
72 | $description = <<<TEXT |
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73 | TODO |
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74 | TEXT; |
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75 | |||
76 | $this |
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77 | ->setName('log') |
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78 | ->setDescription( |
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79 | 'Show the log messages for revisions/bugs/path' |
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80 | ) |
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81 | ->setHelp($description) |
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82 | ->addArgument( |
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83 | 'path', |
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84 | InputArgument::OPTIONAL, |
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85 | 'Working copy path or URL', |
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86 | '.' |
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87 | ) |
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88 | ->addOption( |
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89 | 'revisions', |
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90 | 'r', |
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91 | InputOption::VALUE_REQUIRED, |
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92 | 'Revision or revision range (e.g. "53324,34342,1224-4433,232")' |
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93 | ) |
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94 | ->addOption( |
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95 | 'bugs', |
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96 | 'b', |
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97 | InputOption::VALUE_REQUIRED, |
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98 | 'Bugs to merge (e.g. "JRA-1234,43644")' |
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99 | ) |
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100 | ->addOption( |
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101 | 'refs', |
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102 | null, |
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103 | InputOption::VALUE_REQUIRED, |
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104 | 'Refs (e.g. "trunk", "branches/branch-name", "tags/tag-name")' |
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105 | ) |
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106 | ->addOption( |
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107 | 'details', |
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108 | 'd', |
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109 | InputOption::VALUE_NONE, |
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110 | 'Shows paths affected in each revision' |
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111 | ) |
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112 | ->addOption( |
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113 | 'summary', |
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114 | 's', |
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115 | InputOption::VALUE_NONE, |
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116 | 'Shows summary of paths affected in each revision' |
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117 | ) |
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118 | ->addOption( |
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119 | 'merge-oracle', |
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120 | null, |
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121 | InputOption::VALUE_NONE, |
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122 | 'Detects commits with possible merge conflicts' |
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123 | ) |
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124 | ->addOption( |
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125 | 'merges', |
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126 | null, |
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127 | InputOption::VALUE_NONE, |
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128 | 'Print only merge commits' |
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129 | ) |
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130 | ->addOption( |
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131 | 'no-merges', |
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132 | null, |
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133 | InputOption::VALUE_NONE, |
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134 | 'Do not print merge commits' |
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135 | ) |
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136 | ->addOption( |
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137 | 'merged', |
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138 | null, |
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139 | InputOption::VALUE_NONE, |
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140 | 'Print only merged commits' |
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141 | ) |
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142 | ->addOption( |
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143 | 'merged-by', |
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144 | null, |
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145 | InputOption::VALUE_REQUIRED, |
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146 | 'Show revisions merged via given revision(-s)' |
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147 | ) |
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148 | ->addOption( |
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149 | 'not-merged', |
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150 | null, |
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151 | InputOption::VALUE_NONE, |
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152 | 'Print only not merged commits' |
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153 | ) |
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154 | ->addOption( |
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155 | 'merge-status', |
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156 | null, |
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157 | InputOption::VALUE_NONE, |
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158 | 'Show merge revisions (if any) for each revisions' |
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159 | ) |
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160 | ->addOption( |
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161 | 'max-count', |
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162 | null, |
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163 | InputOption::VALUE_REQUIRED, |
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164 | 'Limit the number of revisions to output' |
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165 | ); |
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166 | |||
167 | parent::configure(); |
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168 | } |
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169 | |||
170 | /** |
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171 | * Return possible values for the named option |
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172 | * |
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173 | * @param string $optionName Option name. |
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174 | * @param CompletionContext $context Completion context. |
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175 | * |
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176 | * @return array |
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177 | */ |
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178 | public function completeOptionValues($optionName, CompletionContext $context) |
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188 | |||
189 | /** |
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190 | * {@inheritdoc} |
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191 | */ |
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192 | public function initialize(InputInterface $input, OutputInterface $output) |
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198 | |||
199 | /** |
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200 | * {@inheritdoc} |
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201 | */ |
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202 | protected function execute(InputInterface $input, OutputInterface $output) |
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282 | |||
283 | /** |
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284 | * Shows error about missing revisions. |
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285 | * |
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286 | * @param array $missing_revisions Missing revisions. |
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287 | * |
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288 | * @return string |
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289 | */ |
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290 | protected function getMissingRevisionsErrorMessage(array $missing_revisions) |
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304 | |||
305 | /** |
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306 | * Returns list of revisions by path. |
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307 | * |
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308 | * @return array |
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309 | * @throws CommandException When given refs doesn't exist. |
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310 | */ |
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311 | protected function getRevisionsByPath() |
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339 | |||
340 | /** |
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341 | * Returns displayed revision limit. |
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342 | * |
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343 | * @return integer |
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344 | */ |
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345 | protected function getMaxCount() |
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355 | |||
356 | /** |
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357 | * Prints revisions. |
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358 | * |
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359 | * @param array $revisions Revisions. |
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360 | * @param boolean $with_details Print extended revision details (e.g. paths changed). |
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361 | * |
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362 | * @return void |
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363 | */ |
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364 | protected function printRevisions(array $revisions, $with_details = false) |
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499 | |||
500 | /** |
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501 | * Generates change summary for a revision. |
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502 | * |
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503 | * @param array $revision_paths Revision paths. |
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504 | * |
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505 | * @return string |
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506 | */ |
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507 | protected function generateChangeSummary(array $revision_paths) |
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535 | |||
536 | /** |
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537 | * Returns merge conflict path predictions. |
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538 | * |
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539 | * @param array $revision_paths Revision paths. |
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540 | * @param array $merge_conflict_regexps Merge conflict paths. |
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541 | * |
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542 | * @return array |
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543 | */ |
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544 | protected function getMergeConflictPrediction(array $revision_paths, array $merge_conflict_regexps) |
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562 | |||
563 | /** |
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564 | * Returns merge conflict regexps. |
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565 | * |
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566 | * @return array |
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567 | */ |
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568 | protected function getMergeConflictRegExps() |
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572 | |||
573 | /** |
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574 | * Returns relative path to "svn log" returned path. |
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575 | * |
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576 | * @param array $path_data Path data. |
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577 | * @param string $path_key Path key. |
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578 | * @param string $repository_path Repository path. |
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579 | * |
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580 | * @return string |
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581 | */ |
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582 | private function _getRelativeLogPath(array $path_data, $path_key, $repository_path) |
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598 | |||
599 | /** |
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600 | * Returns URL to the working copy. |
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601 | * |
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602 | * @return string |
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603 | */ |
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604 | protected function getWorkingCopyUrl() |
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614 | |||
615 | /** |
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616 | * Returns list of config settings. |
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617 | * |
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618 | * @return AbstractConfigSetting[] |
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619 | */ |
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620 | public function getConfigSettings() |
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627 | |||
628 | } |
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629 |