152 lines
4.8 KiB
C++
152 lines
4.8 KiB
C++
#include "aptpkginfo.h"
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#include <QFile>
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#include <QDir>
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#include <QDebug>
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#include <QJsonObject>
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AptPkgInfo::AptPkgInfo(QString pkgName, PkgSearchOption option)
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{
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this->pkgSearchOption = option;
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SetPkgName(pkgName);
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ReadAptData();
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}
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void AptPkgInfo::ReadAptData()
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{
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this->aptData = QJsonObject();
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QDir dir("/var/lib/apt/lists/");
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QStringList list = dir.entryList();
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for(QString i: list) {
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// 除去 . 和 ..
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if(i == "." || i == "..") {
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continue;
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}
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if(i.mid(i.indexOf("_Packages")) != "_Packages") {
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continue;
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}
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QFile file(dir.path() + "/" + i);
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file.open(QFile::ReadOnly);
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// 分析
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QJsonObject pkgData;
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pkgDataStatus status = pkgDataStatus::None;
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QString strTemp; // 因为直接 replace 会改变原来的值
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while(!file.atEnd()) {
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QByteArray line = file.readLine();
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strTemp = line;
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if(strTemp.replace(" ", "").replace("\n", "") == "") {
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// 空行
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if(status == pkgDataStatus::IsContain) {
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aptData.insert(pkgData.value("Package").toString(), pkgData);
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}
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status = pkgDataStatus::EmptyLine;
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pkgData = QJsonObject(); // 清空
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continue;
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}
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// 如果已经被检测为非要寻找的包名，则
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if(status == pkgDataStatus::UnContain) {
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continue; // 忽略该行
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}
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// 分析行
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if(line.contains("Package: ")) {
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// 如果为包名行，则进行分析
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// 是否含有要求关键字
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strTemp = line;
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QString pkgName = strTemp.replace("Package: ", "").replace(" ", "").replace("\n", "");
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switch(this->pkgSearchOption) {
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case PkgSearchOption::Equal:
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if(pkgName == this->pkgName) {
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status = pkgDataStatus::IsContain;
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}
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else {
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status = pkgDataStatus::UnContain;
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}
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break;
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case PkgSearchOption::Include:
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if(pkgName.contains(this->pkgName)) {
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status = pkgDataStatus::IsContain;
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}
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else {
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status = pkgDataStatus::UnContain;
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}
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break;
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case PkgSearchOption::HeadInclude:
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if(pkgName.mid(0, this->pkgName.length()) == this->pkgName) {
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status = pkgDataStatus::IsContain;
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}
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else {
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status = pkgDataStatus::UnContain;
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}
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break;
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}
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// 解析为 QJsonObject
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pkgData.insert("Package", pkgName);
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continue;
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}
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// 处理
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int index = line.indexOf(":");
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strTemp = line;
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strTemp.replace("\n", "");
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pkgData.insert(QString(strTemp.mid(0, index)), QString(strTemp.mid(index + 2)));
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}
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file.close();
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}
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}
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void AptPkgInfo::SetPkgName(QString pkgName)
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{
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this->pkgName = pkgName;
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//pkgInfo = GetPkgInfo(pkgName);
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}
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QString AptPkgInfo::GetPkgInfo(QString pkgName) const
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{
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if(pkgName == NULL) {
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pkgName = this->pkgName;
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}
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QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
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env.insert("LANG", "en");
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return this->GetCommandResult("apt", QStringList() << "list" << pkgName, env);
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}
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QString AptPkgInfo::get_package(QString pkgName) const
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{
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return this->aptData.value(pkgName).toObject().value("Package").toString();
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}
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QString AptPkgInfo::get_version(QString pkgName) const
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{
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return this->aptData.value(pkgName).toObject().value("Version").toString();
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}
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QString AptPkgInfo::get_maintainer(QString pkgName) const
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{
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return this->aptData.value(pkgName).toObject().value("Maintainer").toString();
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}
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QString AptPkgInfo::get_description(QString pkgName) const
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{
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return this->aptData.value(pkgName).toObject().value("Description").toString();
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}
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QString AptPkgInfo::get_architecture(QString pkgName) const
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{
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return this->aptData.value(pkgName).toObject().value("Architecture").toString();
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}
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QStringList AptPkgInfo::GetAptPackageList() const
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{
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return this->aptData.keys();
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}
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QByteArray AptPkgInfo::GetCommandResult(QString command, QStringList argv, QProcessEnvironment env) const
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{
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QProcess process;
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process.setProcessEnvironment(env);
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process.start(command, argv);
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process.waitForStarted();
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process.waitForFinished();
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QByteArray result = process.readAllStandardOutput();
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process.close();
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return result;
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}
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