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1 | <?php |
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2 | namespace Consolidation\SiteAlias; |
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3 | |||
4 | use Consolidation\Config\Config; |
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5 | use Consolidation\Config\ConfigInterface; |
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6 | use Consolidation\Config\Util\ConfigRuntimeInterface; |
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7 | use Consolidation\SiteAlias\SiteAlias; |
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8 | use Consolidation\SiteAlias\SiteAliasInterface; |
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9 | use Consolidation\SiteAlias\SiteAliasTrait; |
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10 | |||
11 | /** |
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12 | * SiteAliasWithConfig delegates to a site alias, and |
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13 | * also combines it with two config stores: |
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14 | * |
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15 | * - Runtime config (set on commandline): Options that override site alias contents |
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16 | * - Default config (set from config files): Default options |
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17 | */ |
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18 | class SiteAliasWithConfig implements SiteAliasInterface, ConfigRuntimeInterface |
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19 | { |
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20 | use SiteAliasTrait; |
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21 | |||
22 | protected $runtimeConfig; |
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23 | protected $siteAlias; |
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24 | protected $defaultConfig; |
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25 | |||
26 | public function __construct(SiteAliasInterface $siteAlias, ConfigInterface $defaultConfig, ConfigInterface $runtimeConfig) |
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27 | { |
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28 | $this->siteAlias = $siteAlias; |
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29 | $this->defaultConfig = $defaultConfig; |
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30 | $this->runtimeConfig = $runtimeConfig; |
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31 | } |
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32 | |||
33 | /** |
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34 | * combine the provided site alias with configuration. |
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35 | * |
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36 | * @return SiteAlias read-only site alias combined with the runtime |
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37 | * config (overrides the site alias values) and the default config. |
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38 | */ |
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39 | public static function create(SiteAliasInterface $siteAlias, ConfigInterface $defaultConfig, ConfigInterface $runtimeConfig = null) |
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40 | { |
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41 | $runtimeConfig = static::determineCorrectRuntimeConfig($defaultConfig, $runtimeConfig); |
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42 | |||
43 | return new self($siteAlias, $defaultConfig, $runtimeConfig); |
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44 | } |
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45 | |||
46 | /** |
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47 | * Determine what object to use for the runtime config. If a specific |
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48 | * runtime config is given, use that. Otherwise, pull it from the default |
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49 | * configuration if available. |
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50 | */ |
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51 | protected static function determineCorrectRuntimeConfig(ConfigInterface $defaultConfig, ConfigInterface $runtimeConfig) |
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52 | { |
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53 | if ($runtimeConfig) { |
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54 | return $runtimeConfig; |
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55 | } |
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56 | |||
57 | if ($defaultConfig instanceof ConfigRuntimeInterface) { |
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58 | return $defaultConfig->runtimeConfig(); |
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59 | } |
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60 | |||
61 | return new Config(); |
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62 | } |
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63 | |||
64 | /** |
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65 | * @inheritdoc |
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66 | */ |
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67 | public function runtimeConfig() |
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68 | { |
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69 | return $this->runtimeConfig; |
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70 | } |
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71 | |||
72 | /** |
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73 | * @inheritdoc |
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74 | */ |
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75 | public function name() |
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76 | { |
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77 | return $this->siteAlias->name(); |
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78 | } |
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79 | |||
80 | /** |
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81 | * @inheritdoc |
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82 | */ |
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83 | public function has($key) |
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84 | { |
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85 | return |
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86 | $this->runtimeConfig->has($key) || |
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87 | $this->siteAlias->has($key) || |
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88 | $this->defaultConfig->has($key); |
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89 | } |
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90 | |||
91 | /** |
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92 | * @inheritdoc |
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93 | */ |
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94 | public function get($key, $defaultFallback = null) |
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95 | { |
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96 | if ($this->runtimeConfig->has($key)) { |
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97 | return $this->runtimeConfig->get($key); |
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98 | } |
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99 | if ($this->siteAlias->has($key)) { |
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100 | return $this->siteAlias->get($key); |
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101 | } |
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102 | if ($this->defaultConfig->has($key)) { |
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103 | return $this->defaultConfig->get($key); |
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104 | } |
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105 | |||
106 | return $defaultFallback; |
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107 | } |
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108 | |||
109 | /** |
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110 | * @inheritdoc |
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111 | */ |
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112 | public function set($key, $value) |
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113 | { |
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114 | $this->changesProhibited(); |
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115 | } |
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116 | |||
117 | /** |
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118 | * @inheritdoc |
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119 | */ |
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120 | public function import($data) |
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121 | { |
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122 | $this->changesProhibited(); |
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123 | } |
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124 | |||
125 | /** |
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126 | * @inheritdoc |
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127 | */ |
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128 | public function replace($data) |
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129 | { |
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130 | $this->changesProhibited(); |
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131 | } |
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132 | |||
133 | /** |
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134 | * @inheritdoc |
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135 | */ |
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136 | public function combine($data) |
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137 | { |
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138 | $this->changesProhibited(); |
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139 | } |
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140 | |||
141 | /** |
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142 | * Export all configuration as a nested array. |
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143 | */ |
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144 | public function export() |
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145 | { |
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146 | throw new \Exception('SiteAliasWithConfig::export() not supported.'); |
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147 | } |
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148 | |||
149 | /** |
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150 | * @inheritdoc |
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151 | */ |
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152 | public function hasDefault($key) |
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153 | { |
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154 | return false; |
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155 | } |
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156 | |||
157 | /** |
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158 | * @inheritdoc |
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159 | */ |
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160 | public function getDefault($key, $defaultFallback = null) |
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161 | { |
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162 | return $defaultFallback; |
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163 | } |
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164 | |||
165 | /** |
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166 | * @inheritdoc |
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167 | */ |
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168 | public function setDefault($key, $value) |
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169 | { |
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170 | $this->changesProhibited(); |
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171 | } |
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172 | |||
173 | /** |
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174 | * @inheritdoc |
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175 | */ |
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176 | public function exportConfig() |
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177 | { |
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178 | throw new \Exception('SiteAliasWithConfig::exportConfig() not supported.'); |
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179 | } |
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180 | |||
181 | protected function changesProhibited() |
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182 | { |
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183 | throw new \Exception('Changing a SiteAliasWithConfig is not permitted.'); |
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184 | } |
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185 | } |
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186 |
Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code: