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1 | <?php |
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2 | |||
3 | namespace Deployer\Component\PharUpdate; |
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4 | |||
5 | use Deployer\Component\PharUpdate\Version\Comparator; |
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6 | use Deployer\Component\PharUpdate\Version\Parser; |
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7 | use Deployer\Component\PharUpdate\Version\Version; |
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8 | |||
9 | /** |
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10 | * Manages the contents of an updates manifest file. |
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11 | * |
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12 | * @author Kevin Herrera <[email protected]> |
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13 | */ |
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14 | class Manifest |
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15 | { |
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16 | /** |
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17 | * The list of updates in the manifest. |
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18 | * |
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19 | * @var Update[] |
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20 | */ |
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21 | private $updates; |
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22 | |||
23 | /** |
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24 | * Sets the list of updates from the manifest. |
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25 | * |
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26 | * @param Update[] $updates The updates. |
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27 | */ |
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28 | public function __construct(array $updates = array()) |
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29 | { |
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30 | $this->updates = $updates; |
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31 | } |
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32 | |||
33 | /** |
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34 | * Finds the most recent update and returns it. |
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35 | * |
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36 | * @param Version $version The current version. |
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37 | * @param boolean $major Lock to major version? |
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38 | * @param boolean $pre Allow pre-releases? |
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39 | * |
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40 | * @return Update The update. |
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41 | */ |
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42 | public function findRecent(Version $version, $major = false, $pre = false) |
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43 | { |
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44 | /** @var $current Update */ |
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45 | $current = null; |
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46 | $major = $major ? $version->getMajor() : null; |
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47 | |||
48 | foreach ($this->updates as $update) { |
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49 | if ($major && ($major !== $update->getVersion()->getMajor())) { |
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50 | continue; |
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51 | } |
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52 | |||
53 | if ((false === $pre) |
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54 | && !$update->getVersion()->isStable()) { |
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55 | continue; |
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56 | } |
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57 | |||
58 | $test = $current ? $current->getVersion() : $version; |
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59 | |||
60 | if (false === $update->isNewer($test)) { |
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61 | continue; |
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62 | } |
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63 | |||
64 | $current = $update; |
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65 | } |
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66 | |||
67 | return $current; |
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68 | } |
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69 | |||
70 | /** |
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71 | * Returns the list of updates in the manifest. |
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72 | * |
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73 | * @return Update[] The updates. |
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74 | */ |
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75 | public function getUpdates() |
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76 | { |
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77 | return $this->updates; |
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78 | } |
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79 | |||
80 | /** |
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81 | * Loads the manifest from a JSON encoded string. |
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82 | * |
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83 | * @param string $json The JSON encoded string. |
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84 | * |
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85 | * @return Manifest The manifest. |
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86 | */ |
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87 | public static function load($json) |
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88 | { |
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89 | return self::create(json_decode($json)); |
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90 | } |
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91 | |||
92 | /** |
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93 | * Loads the manifest from a JSON encoded file. |
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94 | * |
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95 | * @param string $file The JSON encoded file. |
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96 | * |
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97 | * @return Manifest The manifest. |
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98 | */ |
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99 | public static function loadFile($file) |
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100 | { |
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101 | return self::create(json_decode(file_get_contents($file))); |
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102 | } |
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103 | |||
104 | /** |
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105 | * Validates the data, processes it, and returns a new instance of Manifest. |
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106 | * |
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107 | * @param array $decoded The decoded JSON data. |
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108 | * |
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109 | * @return Manifest The new instance. |
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110 | */ |
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111 | private static function create($decoded) |
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112 | { |
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113 | $updates = array(); |
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114 | |||
115 | foreach ($decoded as $update) { |
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116 | $updates[] = new Update( |
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117 | $update->name, |
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118 | $update->sha1, |
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119 | $update->url, |
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120 | Parser::toVersion($update->version), |
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121 | isset($update->publicKey) ? $update->publicKey : null |
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122 | ); |
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123 | } |
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124 | |||
125 | usort( |
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126 | $updates, |
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127 | function (Update $a, Update $b) { |
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128 | return Comparator::isGreaterThan( |
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129 | $a->getVersion(), |
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130 | $b->getVersion() |
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131 | ); |
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132 | } |
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133 | ); |
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134 | |||
135 | return new static($updates); |
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136 | } |
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137 | } |
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138 |
In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
integer
values, zero is a special case, in particular the following results might be unexpected: