1 | <?php |
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2 | |||
3 | /** |
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4 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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5 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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6 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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7 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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8 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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9 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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10 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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11 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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12 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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13 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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14 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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15 | * |
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16 | * This software consists of voluntary contributions made by many individuals |
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17 | * and is licensed under the LGPL. For more information please see |
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18 | * <http://phing.info>. |
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19 | */ |
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20 | |||
21 | namespace Phing\Filter; |
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22 | |||
23 | use Phing\Exception\BuildException; |
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24 | use Phing\Io\BufferedReader; |
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25 | use Phing\Io\File; |
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26 | use Phing\Io\FileReader; |
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27 | use Phing\Io\IOException; |
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28 | use Phing\Io\Reader; |
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29 | use Phing\Type\Parameter; |
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30 | |||
31 | /** |
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32 | * Concats a file before and/or after the file. |
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33 | * |
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34 | * Example: |
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35 | * ``` |
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36 | * <copy todir="build"> |
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37 | * <fileset dir="src" includes="*.php"/> |
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38 | * <filterchain> |
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39 | * <concatfilter prepend="license.txt"/> |
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40 | * </filterchain> |
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41 | * </copy> |
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42 | * ``` |
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43 | * |
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44 | * Copies all php sources from `src` to `build` and adds the |
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45 | * content of `license.txt` add the beginning of each |
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46 | * file. |
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47 | * |
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48 | * @author Siad.ardroumli <[email protected]> |
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49 | */ |
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50 | class ConcatFilter extends BaseParamFilterReader implements ChainableReader |
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51 | { |
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52 | /** |
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53 | * File to add before the content. |
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54 | * |
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55 | * @var File |
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56 | */ |
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57 | private $prepend; |
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58 | |||
59 | /** |
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60 | * File to add after the content. |
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61 | * |
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62 | * @var File|string |
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63 | */ |
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64 | private $append; |
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65 | |||
66 | /** |
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67 | * Reader for prepend-file. |
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68 | * |
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69 | * @var BufferedReader |
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70 | */ |
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71 | private $prependReader; |
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72 | |||
73 | /** |
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74 | * Reader for append-file. |
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75 | * |
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76 | * @var BufferedReader |
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77 | */ |
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78 | private $appendReader; |
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79 | |||
80 | /** |
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81 | * @param Reader $in |
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82 | */ |
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83 | 1 | public function __construct(Reader $in = null) |
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84 | { |
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85 | 1 | parent::__construct($in); |
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86 | 1 | } |
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87 | |||
88 | /** |
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89 | * Returns the next character in the filtered stream. If the desired |
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90 | * number of lines have already been read, the resulting stream is |
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91 | * effectively at an end. Otherwise, the next character from the |
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92 | * underlying stream is read and returned. |
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93 | * |
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94 | * @param int $len |
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95 | * |
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96 | * @throws IOException if the underlying stream throws an IOException |
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97 | * during reading |
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98 | * @throws BuildException |
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99 | * @throws \InvalidArgumentException |
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100 | * |
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101 | * @return int|string the next character in the resulting stream, or -1 |
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102 | * if the end of the resulting stream has been reached |
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103 | */ |
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104 | 1 | public function read($len = null) |
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105 | { |
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106 | // do the "singleton" initialization |
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107 | 1 | if (!$this->getInitialized()) { |
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108 | 1 | $this->initialize(); |
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109 | 1 | $this->setInitialized(true); |
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110 | } |
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111 | |||
112 | 1 | $ch = -1; |
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113 | |||
114 | // The readers return -1 if they end. So simply read the "prepend" |
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115 | // after that the "content" and at the end the "append" file. |
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116 | 1 | if (null !== $this->prependReader) { |
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117 | 1 | $ch = $this->prependReader->read(); |
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118 | 1 | if (-1 === $ch) { |
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119 | // I am the only one so I have to close the reader |
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120 | 1 | $this->prependReader->close(); |
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121 | 1 | $this->prependReader = null; |
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122 | } |
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123 | } |
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124 | 1 | if (-1 === $ch) { |
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125 | 1 | $ch = parent::read(); |
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126 | } |
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127 | 1 | if (-1 === $ch && null !== $this->appendReader) { |
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128 | $ch = $this->appendReader->read(); |
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129 | if (-1 === $ch) { |
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130 | // I am the only one so I have to close the reader |
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131 | $this->appendReader->close(); |
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132 | $this->appendReader = null; |
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133 | } |
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134 | } |
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135 | |||
136 | 1 | return $ch; |
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137 | } |
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138 | |||
139 | /** |
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140 | * Creates a new ConcatReader using the passed in |
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141 | * Reader for instantiation. |
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142 | * |
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143 | * @param Reader $reader A Reader object providing the underlying stream. |
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144 | * Must not be <code>null</code>. |
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145 | * |
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146 | * @throws IOException |
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147 | * @throws \InvalidArgumentException |
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148 | * |
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149 | * @return ConcatFilter a new filter based on this configuration, but filtering |
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150 | * the specified reader |
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151 | */ |
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152 | 1 | public function chain(Reader $reader): Reader |
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153 | { |
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154 | 1 | $newFilter = new ConcatFilter($reader); |
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155 | 1 | $newFilter->setProject($this->getProject()); |
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156 | 1 | $newFilter->setPrepend($this->getPrepend()); |
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157 | 1 | $newFilter->setAppend($this->getAppend()); |
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158 | |||
159 | 1 | return $newFilter; |
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160 | } |
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161 | |||
162 | /** |
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163 | * Returns `prepend` attribute. |
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164 | * |
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165 | * @return File prepend attribute |
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166 | */ |
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167 | 1 | public function getPrepend() |
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168 | { |
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169 | 1 | return $this->prepend; |
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170 | } |
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171 | |||
172 | /** |
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173 | * Sets `prepend` attribute. |
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174 | * |
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175 | * @param File|string $prepend prepend new value |
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176 | * |
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177 | * @throws IOException |
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178 | * @throws \InvalidArgumentException |
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179 | */ |
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180 | 1 | public function setPrepend($prepend) |
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181 | { |
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182 | 1 | if ($prepend instanceof File) { |
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183 | 1 | $this->prepend = $prepend; |
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184 | |||
185 | 1 | return; |
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186 | } |
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187 | |||
188 | 1 | $this->prepend = new File($prepend); |
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189 | 1 | } |
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190 | |||
191 | /** |
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192 | * Returns `append` attribute. |
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193 | * |
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194 | * @return File|string append attribute |
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195 | */ |
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196 | 1 | public function getAppend() |
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197 | { |
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198 | 1 | return $this->append; |
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199 | } |
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200 | |||
201 | /** |
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202 | * Sets `append` attribute. |
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203 | * |
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204 | * @param File|string $append append new value |
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205 | */ |
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206 | 1 | public function setAppend($append) |
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207 | { |
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208 | 1 | $this->append = $append; |
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209 | 1 | } |
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210 | |||
211 | /** |
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212 | * Scans the parameters list for the "lines" parameter and uses |
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213 | * it to set the number of lines to be returned in the filtered stream. |
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214 | * also scan for skip parameter. |
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215 | * |
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216 | * @throws IOException |
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217 | * @throws \InvalidArgumentException |
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218 | */ |
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219 | 1 | private function initialize() |
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220 | { |
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221 | // get parameters |
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222 | 1 | $params = $this->getParameters(); |
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223 | 1 | if (null !== $params) { |
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224 | /** |
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225 | * @var Parameter $param |
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226 | */ |
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227 | 1 | foreach ($params as $param) { |
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228 | if ('prepend' === $param->getName()) { |
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229 | $this->setPrepend(new File($param->getValue())); |
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230 | |||
231 | continue; |
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232 | } |
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233 | if ('append' === $param->getName()) { |
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234 | $this->setAppend(new File($param->getValue())); |
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235 | |||
236 | continue; |
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237 | } |
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238 | } |
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239 | } |
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240 | 1 | if (null !== $this->prepend) { |
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241 | 1 | if (!$this->prepend->isAbsolute()) { |
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242 | 1 | $this->prepend = new File($this->getProject()->getBasedir(), $this->prepend->getPath()); |
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243 | } |
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244 | 1 | $this->prependReader = new BufferedReader(new FileReader($this->prepend)); |
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245 | } |
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246 | 1 | if (null !== $this->append) { |
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247 | if (!$this->append->isAbsolute()) { |
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248 | $this->append = new File($this->getProject()->getBasedir(), $this->append->getPath()); |
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249 | } |
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250 | $this->appendReader = new BufferedReader(new FileReader($this->append)); |
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251 | } |
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252 | 1 | } |
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253 | } |
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254 |