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#include <QDebug>
#include <QLocale>
#include "aptpackagebuilder.h"
#include "aptcacheparser.h"
#include "dpkgparser.h"
#include "helpers.h"
#include "runcommandforparsing.h"
#include "packagename.h"
#include "packagenotfoundexception.h"
namespace NApt {
AptCacheParser::AptCacheParser() {}
// splits into section and content
pair<string, string> splitSectionLine(const string& line) {
auto pos = line.find(": ");
return make_pair(line.substr(0, pos), line.substr(pos + 2));
}
void assignValueToSection(AptPackageBuilder& builder, const string& section, const string& content) {
static auto languageCode = QLocale::system().name().first(2);
static string localDescriptionSection = ("Description-" + languageCode).toStdString();
if (section == "Package") {
builder.setName(toQString(content));
} else if (section == "Name") {
builder.setName(toQString(content));
} else if (section == "Architecture") {
builder.setArchitecture(toQString(content));
} else if (
section == "Description" ||
section == "Description-en" ||
section == localDescriptionSection
) {
builder.setDescription(toQString(content));
} else if (section == "Version") {
builder.setVersion(toQString(content));
} else if (section == "Status") {
if (content.find("installed") != std::string::npos)
builder.setInstalledState(Package::INSTALLED);
else
builder.setInstalledState(Package::NOT_INSTALLED);
} else if (section == "Source") {
builder.setSource(toQString(content));
} else if (section == "Installed-Size") {
builder.setInstalledSize(toQString(content).toUInt());
} else if (section == "Maintainer") {
builder.setMaintainer(toQString(content));
} else if (section == "Depends") {
builder.setDepends(toQString(content));
} else if (section == "Replaces") {
builder.setReplaces(toQString(content));
} else if (section == "Provides") {
builder.setProvides(toQString(content));
} else if (section == "Pre-Depends") {
builder.setPreDepends(toQString(content));
} else if (section == "Recommends") {
builder.setRecommends(toQString(content));
} else if (section == "Suggests") {
builder.setSuggests(toQString(content));
} else if (section == "Conflicts") {
builder.setConflicts(toQString(content));
} else if (section == "Breaks") {
builder.setBreaks(toQString(content));
} else if (section == "Homepage") {
builder.setHomepage(toQString(content));
} else if (section == "Section") {
builder.setSection(toQString(content));
} else if (section == "Priority") {
builder.setPriority(toQString(content));
} else if (section == "Filename") {
builder.setFilename(toQString(content));
} else if (section == "Size") {
builder.setSize(toQString(content).toUInt());
} else if (section == "MD5sum") {
builder.setMd5sum(toQString(content));
} else if (section == "SHA256") {
builder.setSha256(toQString(content));
} else if (section == "Conffiles") {
builder.setConffiles(toQString(content));
} else if (section == "Description-md5") {
} else if (section == "Multi-Arch") {
} else if (section == "Tag") {
} else if (section == "Built-Using") {
} else if (section == "Enhances") {
} else if (section == "Sha1") {
} else if (section == "Sha512") {
} else if (section == "Enhances") {
} else if (section == "Bugs") {
} else if (true) {
// Those and some more like Static-Built-Using, X-Cargo-Built-Using, Gstreamer-Elements, ...
// Intentionally ignored:
// qDebug() << "Ignored section " << toQString(section);
}
}
void AptCacheParser::mergeIntoPackageMap(
const AptPackageBuilder& builder,
map<QString, unique_ptr<const IPackage>>& target
) {
static QString defaultArchitecture = toQString(PackageName::defaultArchitecture());
if (target.find(builder.name()) == target.end()){
target.insert({builder.name(), builder.createPackage()});
} else {
// prefer default architecture
if (builder.architecture() == defaultArchitecture) {
target.insert_or_assign(builder.name(), builder.createPackage());
}
}
}
map<QString, unique_ptr<const IPackage>> AptCacheParser::parseDumpAvail(
int packageCount,
const map<string, const DpkgParser::PackageInformation>& dpkgPackage,
NUtil::IProgressObserver& progressObserver
) {
auto packages = map<QString, unique_ptr<const IPackage>>();
auto lineProcessor = [&packages, &dpkgPackage, packageCount, &progressObserver](const string& line) {
static auto builder = AptPackageBuilder(dpkgPackage);
static string currentSection = "";
static string currentContent = "";
static int parsedPackageCount = 0;
if (line.empty()) {
assignValueToSection(builder, currentSection, currentContent);
currentSection = "";
currentContent = "";
mergeIntoPackageMap(builder, packages);
builder.clear();
++parsedPackageCount;
if (parsedPackageCount%500 == 0) {
progressObserver.setProgress(100 * parsedPackageCount / packageCount);
}
} else if (line[0] == ' ') {
// ignore multi-line content for dump-avail, there should be no
// such content expect for debtags or long description
// usually from third-party repos
} else {
auto sectionAndContent = splitSectionLine(line);
if (!currentSection.empty() && sectionAndContent.first != currentSection) {
assignValueToSection(builder, currentSection, currentContent);
currentSection = "";
currentContent = "";
}
currentSection = sectionAndContent.first;
currentContent = sectionAndContent.second;
}
};
NApplication::runCommandForParsing(
"apt-cache dumpavail |grep -E \"(^(Package:|Version:|Architecture:|Status:|Description:))|^$\"",
lineProcessor
);
return packages;
}
PackageDetails mergePackageDetails(const list<AptPackageBuilder>& input) {
assert(input.size() > 0);
if (input.size() == 1) return input.front().createPackageDetails();
auto installedPackage = std::find_if(input.begin(), input.end(), [](const AptPackageBuilder& builder) {
return builder.isInstalled();
});
// if we did find an installed package
if (installedPackage != input.end()) return installedPackage->createPackageDetails();
// else any guess is good, so take the first package in the list
else return input.front().createPackageDetails();
}
PackageDetails AptCacheParser::parseCacheShow(const::string& packageName) {
auto packageBuilders = list<AptPackageBuilder>();
auto lineProcessor = [&packageBuilders](const string& line) {
static auto builder = AptPackageBuilder();
static string currentSection = "";
static string currentContent = "";
if (line.empty()) {
assignValueToSection(builder, currentSection, currentContent);
currentSection = "";
currentContent = "";
packageBuilders.push_back(builder);
builder.clear();
} else // this line is a newline of a multiline entry
if (line[0] == ' ') {
currentContent += "\n" + line;
} else {
auto sectionAndContent = splitSectionLine(line);
if (!currentSection.empty() && sectionAndContent.first != currentSection) {
assignValueToSection(builder, currentSection, currentContent);
currentSection = "";
currentContent = "";
}
currentSection = sectionAndContent.first;
currentContent = sectionAndContent.second;
}
};
NApplication::runCommandForParsing(string("apt-cache show ") + packageName, lineProcessor);
if (packageBuilders.empty()) throw NPlugin::PackageNotFoundException(packageName);
return mergePackageDetails(packageBuilders);
}
}
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