package.php

php-4.4.7学习linux时下载的源代码

                    $this->_downloader->_getDepPackageDownloadUrl($dep, $pname);
                $chan = 'pear.php.net';
                if (PEAR::isError($url)) {
                    // check to see if this is a pecl package that has jumped
                    // from pear.php.net to pecl.php.net channel
                    if (!class_exists('PEAR_Dependency2')) {
                        require_once 'PEAR/Dependency2.php';
                    }
                    $newdep = PEAR_Dependency2::normalizeDep($dep);
                    $newdep = $newdep[0];
                    $newdep['channel'] = 'pecl.php.net';
                    $chan = 'pecl.php.net';
                    $url =
                        $this->_downloader->_getDepPackageDownloadUrl($newdep, $pname);
                    $obj = &$this->_installRegistry->getPackage($dep['name']);
                    if (PEAR::isError($url)) {
                        PEAR::popErrorHandling();
                        if ($obj !== null && $this->isInstalled($obj, $dep['rel'])) {
                            $group = (!isset($dep['optional']) || $dep['optional'] == 'no') ?
                                'required' :
                                'optional';
                            $dep['package'] = $dep['name'];
                            if (!isset($options['soft'])) {
                                $this->_downloader->log(3, $this->getShortName() .
                                    ': Skipping ' . $group . ' dependency "' .
                                    $this->_registry->parsedPackageNameToString($dep, true) .
                                    '", already installed as version ' . $obj->getVersion());
                            }
                            if (@$skipnames[count($skipnames) - 1] ==
                                  $this->_registry->parsedPackageNameToString($dep, true)) {
                                array_pop($skipnames);
                            }
                            continue;
                        } else {
                            if (isset($dep['optional']) && $dep['optional'] == 'yes') {
                                $this->_downloader->log(2, $this->getShortName() .
                                    ': Skipping ' . $group
                                    . ' dependency "' .
                                    $this->_registry->parsedPackageNameToString($dep, true) .
                                    '", no releases exist');
                                continue;
                            } else {
                                return $url;
                            }
                        }
                    }
                }
                PEAR::popErrorHandling();
                if (!isset($options['alldeps'])) {
                    if (isset($dep['optional']) && $dep['optional'] == 'yes') {
                        if (!isset($options['soft'])) {
                            $this->_downloader->log(3, 'Notice: package "' .
                                $this->getShortName() .
                                '" optional dependency "' .
                                $this->_registry->parsedPackageNameToString(
                                    array('channel' => $chan, 'package' =>
                                    $dep['name']), true) .
                                '" will not be automatically downloaded');
                        }
                        $skipnames[] = $this->_registry->parsedPackageNameToString(
                                array('channel' => $chan, 'package' =>
                                $dep['name']), true);
                        $nodownload = true;
                    }
                }
                if (!isset($options['alldeps']) && !isset($options['onlyreqdeps'])) {
                    if (!isset($dep['optional']) || $dep['optional'] == 'no') {
                        if (!isset($options['soft'])) {
                            $this->_downloader->log(3, 'Notice: package "' .
                                $this->getShortName() .
                                '" required dependency "' .
                                $this->_registry->parsedPackageNameToString(
                                    array('channel' => $chan, 'package' =>
                                    $dep['name']), true) .
                                '" will not be automatically downloaded');
                        }
                        $skipnames[] = $this->_registry->parsedPackageNameToString(
                                array('channel' => $chan, 'package' =>
                                $dep['name']), true);
                        $nodownload = true;
                    }
                }
                // check to see if a dep is already installed
                // do not try to move this before getDepPackageDownloadURL
                // we can't determine whether upgrade is necessary until we know what
                // version would be downloaded
                if (!isset($options['force']) && $this->isInstalled(
                        $url, $dep['rel'])) {
                    $group = (!isset($dep['optional']) || $dep['optional'] == 'no') ?
                        'required' :
                        'optional';
                    $dep['package'] = $dep['name'];
                    if (isset($newdep)) {
                        $version = $this->_installRegistry->packageInfo($newdep['name'], 'version',
                            $newdep['channel']);
                    } else {
                        $version = $this->_installRegistry->packageInfo($dep['name'], 'version');
                    }
                    $dep['version'] = $url['version'];
                    if (!isset($options['soft'])) {
                        $this->_downloader->log(3, $this->getShortName() . ': Skipping ' . $group .
                            ' dependency "' .
                            $this->_registry->parsedPackageNameToString($dep, true) .
                            '", already installed as version ' . $version);
                    }
                    if (@$skipnames[count($skipnames) - 1] ==
                          $this->_registry->parsedPackageNameToString($dep, true)) {
                        array_pop($skipnames);
                    }
                    continue;
                }
                if ($nodownload) {
                    continue;
                }
                PEAR::pushErrorHandling(PEAR_ERROR_RETURN);
                if (isset($newdep)) {
                    $dep = $newdep;
                }
                $dep['package'] = $dep['name'];
                $ret = $this->_analyzeDownloadURL($url, 'dependency', $dep, $params,
                    isset($dep['optional']) && $dep['optional'] == 'yes' &&
                    !isset($options['alldeps']));
                PEAR::popErrorHandling();
                if (PEAR::isError($ret)) {
                    if (!isset($options['soft'])) {
                        $this->_downloader->log(0, $ret->getMessage());
                    }
                    continue;
                }
                $this->_downloadDeps[] = $ret;
            }
        }
        if (count($skipnames)) {
            if (!isset($options['soft'])) {
                $this->_downloader->log(1, 'Did not download dependencies: ' .
                    implode(', ', $skipnames) .
                    ', use --alldeps or --onlyreqdeps to download automatically');
            }
        }
    }

    function setDownloadURL($pkg)
    {
        $this->_downloadURL = $pkg;
    }

    /**
     * Set the package.xml object for this downloaded package
     *
     * @param PEAR_PackageFile_v1|PEAR_PackageFile_v2 $pkg
     */
    function setPackageFile(&$pkg)
    {
        $this->_packagefile = &$pkg;
    }

    function getShortName()
    {
        return $this->_registry->parsedPackageNameToString(array('channel' => $this->getChannel(),
            'package' => $this->getPackage()), true);
    }

    function getParsedPackage()
    {   
        if (isset($this->_packagefile) || isset($this->_parsedname)) {
            return array('channel' => $this->getChannel(),
                'package' => $this->getPackage(),
                'version' => $this->getVersion());
        }
        return false;
    }

    function getDownloadURL()
    {
        return $this->_downloadURL;
    }

    function canDefault()
    {
        if (isset($this->_downloadURL)) {
            if (isset($this->_downloadURL['nodefault'])) {
                return false;
            }
        }
        return true;
    }

    function getPackage()
    {
        if (isset($this->_packagefile)) {
            return $this->_packagefile->getPackage();
        } elseif (isset($this->_downloadURL['info'])) {
            return $this->_downloadURL['info']->getPackage();
        } else {
            return false;
        }
    }

    /**
     * @param PEAR_PackageFile_v1|PEAR_PackageFile_v2
     */
    function isSubpackage(&$pf)
    {
        if (isset($this->_packagefile)) {
            return $this->_packagefile->isSubpackage($pf);
        } elseif (isset($this->_downloadURL['info'])) {
            return $this->_downloadURL['info']->isSubpackage($pf);
        } else {
            return false;
        }
    }

    function getPackageType()
    {
        if (isset($this->_packagefile)) {
            return $this->_packagefile->getPackageType();
        } elseif (isset($this->_downloadURL['info'])) {
            return $this->_downloadURL['info']->getPackageType();
        } else {
            return false;
        }
    }

    function isBundle()
    {
        if (isset($this->_packagefile)) {
            return $this->_packagefile->getPackageType() == 'bundle';
        } else {
            return false;
        }
    }

    function getPackageXmlVersion()
    {
        if (isset($this->_packagefile)) {
            return $this->_packagefile->getPackagexmlVersion();
        } elseif (isset($this->_downloadURL['info'])) {
            return $this->_downloadURL['info']->getPackagexmlVersion();
        } else {
            return '1.0';
        }
    }

    function getChannel()
    {
        if (isset($this->_packagefile)) {
            return $this->_packagefile->getChannel();
        } elseif (isset($this->_downloadURL['info'])) {
            return $this->_downloadURL['info']->getChannel();
        } else {
            return false;
        }
    }

    function getURI()
    {
        if (isset($this->_packagefile)) {
            return $this->_packagefile->getURI();
        } elseif (isset($this->_downloadURL['info'])) {
            return $this->_downloadURL['info']->getURI();
        } else {
            return false;
        }
    }

    function getVersion()
    {
        if (isset($this->_packagefile)) {
            return $this->_packagefile->getVersion();
        } elseif (isset($this->_downloadURL['version'])) {
            return $this->_downloadURL['version'];
        } else {
            return false;
        }
    }

    function isCompatible($pf)
    {
        if (isset($this->_packagefile)) {
            return $this->_packagefile->isCompatible($pf);
        } elseif (isset($this->_downloadURL['info'])) {
            return $this->_downloadURL['info']->isCompatible($pf);
        } else {
            return true;
        }
    }

    function setGroup($group)
    {
        $this->_parsedname['group'] = $group;
    }

    function getGroup()
    {
        if (isset($this->_parsedname['group'])) {
            return $this->_parsedname['group'];
        } else {
            return '';
        }
    }

    function isExtension($name)
    {
        if (isset($this->_packagefile)) {
            return $this->_packagefile->isExtension($name);
        } elseif (isset($this->_downloadURL['info'])) {
            return $this->_downloadURL['info']->getProvidesExtension() == $name;
        } else {
            return false;
        }
    }

    function getDeps()
    {
        if (isset($this->_packagefile)) {
            if ($this->_packagefile->getPackagexmlVersion() == '2.0') {
                return $this->_packagefile->getDeps(true);
            } else {
                return $this->_packagefile->getDeps();
            }
        } elseif (isset($this->_downloadURL['info'])) {
            if ($this->_downloadURL['info']->getPackagexmlVersion() == '2.0') {
                return $this->_downloadURL['info']->getDeps(true);
            } else {
                return $this->_downloadURL['info']->getDeps();
            }
        } else {
            return array();