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annotate admin/application/libraries/hgphp.php @ 28:4543c151a667

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Added additional configuration options. Fixed last possible concurrency error, removing a single hgweb.config.lock with per-save temporary files.
author joshjcarrier
date Sun, 16 May 2010 13:50:22 -0700
parents 26ff1899349f
children 2cf4300b3541
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1 <?php if (!defined('BASEPATH')) exit('No direct script access allowed');
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3 /**
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4 * CodeIgniter Mercurial Repository Management class
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5 *
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6 * Scans file system and Mercurial projects directory, allowing
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2ec108f96fad Cleaned up config. UI tidy up. Commenting. Still missing caching and concurrency checks.
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7 * web-based manipulation of the hgweb.config and hgrc configuration files.
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8 *
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9 * Depends on the HgConf2Ini library.
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10 *
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11 * @package CodeIgniter
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12 * @subpackage Libraries
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13 * @category Libraries
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14 * @author Josh Carrier
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15 * @link blog.joshjcarrier.com
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16 *
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17 */
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18 class HgPHP
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19 {
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20 private $_ci;
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22 function __construct($config = array())
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23 {
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24 $this->_ci =& get_instance();
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25 if(!empty($config))
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26 {
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27 $this->initialize($config);
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28 }
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29 else
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30 {
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31 $this->_ci->config->load('hgphp', TRUE);
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32 $this->initialize($this->_ci->config->item('hgphp'));
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33 }
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34
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35 $this->_ci->lang->load('hgphp');
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36 $this->_ci->load->library('hgconf2ini');
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37 log_message('debug', 'HgPHP class Initialized');
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38 }
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40 function initialize($config = array())
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41 {
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42 foreach($config as $key=>$val)
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43 {
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44 $this->{'_'.$key} = $val;
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45 }
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46 }
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48 /**
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49 * Public accessors - hgweb.config
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50 */
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51
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52 /**
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53 * Returns a list of available repositories.
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54 * Will show up if: detected in repo directory
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55 * Will have status "enabled" if: detected in hgweb.config
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56 *
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57 * @param ofl_lock_hgwebconf (updated by reference) the current optimistic file lock value
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58 * @return an array of 0 or more detected repositories
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59 */
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60 function lsdir(&$ofl_lock_hgwebconf)
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61 {
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62 $realdir = $this->__realdirscan();
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63 $hgwebdir_compat = $this->_ci->hgconf2ini->getHgWebDirCollections($ofl_lock_hgwebconf);
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65 $allrepo = array_merge($realdir, $hgwebdir_compat);
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67 $hgrepos = array();
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68 foreach($allrepo as $repo)
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69 {
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70 $hgrepos[$repo]['name'] = $repo;
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71
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72 if(isset($realdir[$repo]) && isset($hgwebdir_compat[$repo]))
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73 {
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74 $hgrepos[$repo]['status'] = HGPHP_REPO_STATUS_ENABLED;
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75 }
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76 else if(isset($realdir[$repo]) && !isset($hgwebdir_compat[$repo]))
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77 {
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78 $hgrepos[$repo]['status'] = HGPHP_REPO_STATUS_DISABLED;
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79 }
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80 else if(!isset($realdir[$repo]) && isset($hgwebdir_compat[$repo]))
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81 {
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82 $hgrepos[$repo]['status'] = HGPHP_REPO_STATUS_MISSING;
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83 }
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84 }
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86 return $hgrepos;
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87 }
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88
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89 /**
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90 * Create a Hg repository by:
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91 * - adding an entry in hgrc if not present
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92 * - creating a bare repository if not present
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93 * @param r_name name of the new repository to create, used as folder name
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94 * @param hg_lock_hgwebconf (updated by reference) the last known optimistic file lock value of hgwebconf
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95 * @param hg_lock_hgrc (updated by reference) value of hgrc's lock value
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96 * @return status code
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97 */
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98 function create_repository($r_name, &$ofl_lock_hgwebconf, &$hg_lock_hgrc)
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99 {
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100 if(!$this->can_create($r_name))
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101 {
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102 return HGPHP_ERR_PERM_USR;
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103 }
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104
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105 $create_status = HGPHP_OK;
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106 $ofl_dummylock_hgwebconf = '';
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107 $lsdir = $this->lsdir($ofl_dummylock_hgwebconf); // don't want to update the lock yet
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108
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109 // simplifies repo list into array where name is both key and value
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110 // this is how hgweb.config wants it
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111 $existingdir = array_keys($lsdir);
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112 $tempexistingdir = array();
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113 foreach($existingdir as $repo_name)
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114 {
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115 $tempexistingdir[$repo_name] = $repo_name;
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116 }
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117 $existingdir = $tempexistingdir;
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118
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119 // not registered in hgweb.config
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120 if(!isset($lsdir[$r_name]))
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121 {
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122 // edit the directory
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123 $existingdir[$r_name] = $r_name;
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124 $create_status = $this->_ci->hgconf2ini->setHgWebDirCollections($existingdir, $ofl_lock_hgwebconf);
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125 if($create_status == HGPHP_OK)
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126 {
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127 // then create the repository
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128 $create_status = $this->create_repository_dir($r_name, $hg_lock_hgrc);
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129 }
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130 }
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131 else
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132 {
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133 // repository already exists
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134 $create_status = HGPHP_ERR_FS_PREEXISTS;
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135 }
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136 return $create_status;
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137 }
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138
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139 /**
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140 * update_repository
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141 * Update repository's hgrc
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142 * @param r_name name of the repository to update hgrc for
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143 * @param hgrc_data array representing new hgrc file
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144 * @param ofl_lock_hgrc (updated by reference) the current optimistic file lock value
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145 * @return status code
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146 */
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147 function update_repository($r_name, $hgrc_data, &$ofl_lock_hgrc)
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148 {
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149 if(!$this->can_update($r_name))
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150 {
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151 return HGPHP_ERR_PERM_USR;
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152 }
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153
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154 return $this->_ci->hgconf2ini->setHGRC($r_name, $hgrc_data, $ofl_lock_hgrc);
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155 }
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156
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157 /**
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158 * delete_repository
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159 * Deletes a repository from the file system and unregisters it from hgweb.config
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160 * @param r_name name of the repo to delete permanently
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161 * @param $ofl_lock_hgwebconf (updated by reference) the current optimistic file lock value
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162 * @return status code
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163 */
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164 function delete_repository($r_name, &$ofl_lock_hgwebconf)
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165 {
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166 if(!$this->can_delete($r_name))
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167 {
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168 return HGPHP_ERR_PERM_USR;
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169 }
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170
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171 $del_status = HGPHP_OK;
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172 $ofl_dummylock_hgwebconf = '';
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173 $lsdir = $this->lsdir($ofl_dummylock_hgwebconf); // don't want to update lock yet
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174
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175 // simplifies repo list into array where name is both key and value
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176 // this is how hgweb.config wants it
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177 $existingdir = array_keys($lsdir);
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178 $tempexistingdir = array();
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179 foreach($existingdir as $repo_name)
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180 {
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181 $tempexistingdir[$repo_name] = $repo_name;
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182 }
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183 $existingdir = $tempexistingdir;
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184
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185 if(isset($lsdir[$r_name]))
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186 {
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187 // edit the directory
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188 unset($existingdir[$r_name]);
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189 // remove hgweb.config
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190 $del_status = $this->_ci->hgconf2ini->setHgWebDirCollections($existingdir, $ofl_lock_hgwebconf);
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191
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192 // remove from hgweb.config
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193 if($del_status == HGPHP_OK)
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194 {
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195 // existing filesystem is not missing, thus needs to be deleted
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196 if($lsdir[$r_name]['status'] != HGPHP_REPO_STATUS_MISSING)
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197 {
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198 // unregister hgrc from transaction manager to keep index small
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199 $del_status = $this->_ci->hgconf2ini->unlinkHGRC($r_name);
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200
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201 if($del_status == HGPHP_OK)
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202 {
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203 $del_status = $this->delete_repository_dir($r_name);
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204 }
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205 }
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206 }
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207 }
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208 else
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209 {
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210 $del_status = HGPHP_ERR_FS_PREEXISTS;
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211 }
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212 return $del_status;
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213 }
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214
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215 /**
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216 * stat_repository
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217 * Returns the HGRC represented as an array for the specified repository
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218 * @param r_name name of the project whose hgrc to retrieve
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219 * @param ofl_lock_hgrc (updated by reference) the current optimistic file lock value will be updated
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220 * @return array representing hgrc or status code
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221 */
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222 function stat_repository($r_name, &$ofl_lock_hgrc)
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223 {
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224 if(!$this->can_view($r_name))
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225 {
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226 return HGPHP_ERR_PERM_USR;
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227 }
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228
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229 return $this->_ci->hgconf2ini->getHGRC($r_name, $ofl_lock_hgrc);
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230 }
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231
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232
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233 /**
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234 * can_create
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235 * Checks if user has permissions to create this repository.
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236 * Requires view permission.
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237 * @param r_name name of repository wanting to be created
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238 * @return true if allowed
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239 */
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240 function can_create($r_name)
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241 {
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242 return $this->can_view($r_name) && $this->_hgwebconf_allow_repo_create;
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243 }
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244
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245 /**
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246 * can_update
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247 * Checks if user has permissions to update this repository
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248 * Requires view permission.
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249 * @param r_name name of repository wanting to be updated
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250 * @return true if allowed
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251 */
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252 function can_update($r_name)
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253 {
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254 return $this->can_view($r_name) && $this->_hgwebconf_allow_repo_update;
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255 }
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256
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257 /**
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258 * can_create
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259 * Checks if user has permissions to view this repository
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260 * @param r_name name of repository wanting to be created
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261 * @return true if allowed
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262 */
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263 function can_view($r_name)
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264 {
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265 return $this->_hgwebconf_allow_repo_view;
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266 }
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267
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268 /**
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269 * can_delete
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270 * Checks if user has permissions to delete this repository
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271 * Requires view permission.
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272 * @param r_name name of repository wanting to be deleted
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273 * @return true if allowed
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274 */
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275 function can_delete($r_name)
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276 {
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277 return $this->can_view($r_name) && $this->_hgwebconf_allow_repo_delete;
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278 }
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279
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280 /**
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281 * create_repository_dir
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282 * Creates a whole repository directory, with hgrc
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283 * @param r_name name of repository to create directory for
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284 * @param ofl_lock_hgrc (updated by reference) the current optimistic file lock value will be updated
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285 * @return status code
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286 */
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287 function create_repository_dir($r_name, &$ofl_lock_hgrc)
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288 {
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289 if(!$this->can_create($r_name))
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290 {
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291 return HGPHP_ERR_PERM_USR;
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292 }
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293
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294 // create repo directory structure recursively
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295 $create_status = mkdir($this->_repositories_abs_dir . $r_name . '/.hg/store/data/', 0755, TRUE);
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296
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297 if($create_status == TRUE)
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298 {
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299 // create hgrc
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300 $create_status = $this->_ci->hgconf2ini->touchHGRC($r_name, $ofl_lock);
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301 }
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302 else
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303 {
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304 // system couldn't make directory
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305 $create_status = HGPHP_ERR_PERM_SYS_REPODIR;
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306 }
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307 return $create_status;
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308 }
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309
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310 /**
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311 * delete_repository_dir
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312 * Deletes a whole repository directory including hgrc and data files
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313 * @param r_name name of repository to delete directory of
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314 * @return status code
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315 */
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316 function delete_repository_dir($repository_name)
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317 {
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318 if(!$this->can_delete($repository_name))
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319 {
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320 return HGPHP_ERR_PERM_USR;
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321 }
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322
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323 $cd = $this->_repositories_abs_dir . $repository_name;
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324 $this->recursiveDelete($cd . '/.hg/');
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325 $del_status = $this->recursiveDelete($cd);
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326 if($del_status == TRUE)
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327 {
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328 $del_status = HGPHP_OK;
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329 }
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330 else
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331 {
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332 $del_status = HGPHP_ERR_PERM_SYS_REPODIR;
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333 }
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334 return $del_status;
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335 }
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336
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337 /**
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338 * Performs a real directory scan where the projects are suppose to reside.
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339 *
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340 * @return the array containing 0 or more valid directories
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341 */
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342 function __realdirscan()
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343 {
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344 $this->_ci->load->helper('directory');
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345
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346 $realdir = directory_map($this->_repositories_abs_dir, TRUE);
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347
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348 $verifiedrealdir = array();
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349 foreach($realdir as $file)
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350 {
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351 // checks if we detected a folder
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352 if(is_dir($this->_repositories_abs_dir . $file))
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353 {
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354 $verifiedrealdir[$file] = $file;
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355 }
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356 }
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357
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358 return $verifiedrealdir;
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359 }
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360
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361 /**
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362 * Delete a file or recursively delete a directory
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363 *
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364 * @param string $str Path to file or directory
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365 * @return true on successful deletion
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366 */
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367 function recursiveDelete($str){
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368 if(is_file($str)){
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369 return @unlink($str);
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370 }
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371 elseif(is_dir($str)){
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372 $scan = glob(rtrim($str,'/').'/*');
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373 foreach($scan as $index=>$path){
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374 $this->recursiveDelete($path);
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375 }
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376 return @rmdir($str);
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377 }
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378 }
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379 }