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Bring Windows XP themes to your KDE Plasma environment!
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250// SPDX-License-Identifier: GPL-3.0-or-later#include "app/install.h"
#include "app/paths.h"#include "app/state.h"
#include <QCoreApplication>#include <QDir>#include <QDirIterator>#include <QFile>#include <QFileInfo>#include <QProcess>#include <QSaveFile>#include <QStandardPaths>
#include <cstdio>
namespace xpl::installer {
namespace {
bool fail(QString *error, const QString &message){ if (error) *error = message; return false;}
// `from` to `to` under a fresh name, then renamed into place.bool copyFile(const QString &from, const QString &to, QString *error){ QDir().mkpath(QFileInfo(to).absolutePath()); const QString fresh = QFileInfo(to).absolutePath() + QLatin1String("/.") + QFileInfo(to).fileName() + QLatin1String(".new"); QFile::remove(fresh); if (!QFile::copy(from, fresh)) return fail(error, QStringLiteral("can't copy %1 to %2").arg(from, to)); QFile::setPermissions(fresh, QFile(from).permissions()); if (std::rename(QFile::encodeName(fresh).constData(), QFile::encodeName(to).constData()) != 0) { QFile::remove(fresh); return fail(error, QStringLiteral("can't put %1 in place").arg(to)); } return true;}
// A folder's tree copied beside `to`, then swapped in whole.bool copyTree(const QString &from, const QString &to, QString *error){ const QString fresh = to + QLatin1String(".new"); QDir(fresh).removeRecursively(); QDirIterator it(from, QDir::Files | QDir::Hidden | QDir::NoDotAndDotDot, QDirIterator::Subdirectories); while (it.hasNext()) { const QString file = it.next(); const QString target = fresh + file.mid(from.size()); QDir().mkpath(QFileInfo(target).absolutePath()); if (!QFile::copy(file, target)) { QDir(fresh).removeRecursively(); return fail(error, QStringLiteral("can't copy %1").arg(file)); } QFile::setPermissions(target, QFile(file).permissions()); } QDir(to).removeRecursively(); if (!QDir().rename(fresh, to)) return fail(error, QStringLiteral("can't put %1 in place").arg(to)); return true;}
// (The Setup wizard is a program of its own, not installed: run again, it// repairs or removes, as a Windows Installer package does.)const QStringList kPrograms{QStringLiteral("xplasma"), QStringLiteral("xplasma-edit")};// What runs at login (~/.config/autostart): the update check.const char *const kAutostart[] = {"fyi.hotsocket.xplasma.updates.desktop"};// Desktop entries earlier XPlasmas installed, gone since: removed on install.const char *const kRetiredEntries[] = {"fyi.hotsocket.xplasma.sounds.desktop"}; // (now XPlasma Properties' Sounds tab)
QString autostartDir(){ return paths::config() + QLatin1String("/autostart");}
} // namespace
QString packageRoot(){ return QDir(QCoreApplication::applicationDirPath() + QLatin1String("/..")).absolutePath();}
bool isPackage(const QString &root){ return QFileInfo(root + QLatin1String("/bin/xplasma")).isExecutable();}
QString installedPrefix(){ const QString recorded = State::load().settings.value(QStringLiteral("installPrefix")).toString(); if (!recorded.isEmpty() && QFileInfo(recorded + QLatin1String("/bin/xplasma")).exists()) return recorded; const QString local = paths::home() + QLatin1String("/.local"); return QFileInfo(local + QLatin1String("/bin/xplasma")).exists() ? local : QString();}
int installedVersion(const QString &prefix){ QProcess run; run.start(prefix + QLatin1String("/bin/xplasma"), {QStringLiteral("--version")}); if (!run.waitForFinished(10000)) { run.kill(); run.waitForFinished(1000); return 0; } // ("xplasma 2"; before release numbers, "xplasma 0.1.0") const QStringList words = QString::fromUtf8(run.readAllStandardOutput()).simplified().split(QLatin1Char(' ')); bool whole = false; const int version = words.last().toInt(&whole); return whole ? version : 0;}
QStringList installedPaths(){ QStringList out; for (const QString &p : kPrograms) out << QLatin1String("bin/") + p; out << QStringLiteral("lib/xplasma") << QStringLiteral("share/applications/fyi.hotsocket.xplasma.desktop") << QStringLiteral("share/applications/fyi.hotsocket.xplasma.datetime.desktop") << QStringLiteral("share/licenses/xplasma"); for (const char *name : kRetiredEntries) out << QLatin1String("share/applications/") + QLatin1String(name); return out;}
bool installFiles(const QString &package, const QString &prefix, const Progress &progress, QString *error){ auto say = [&](const QString &line) { if (progress) progress(line); }; if (!isPackage(package)) return fail(error, QStringLiteral("%1 isn't an XPlasma package (it has no bin/xplasma)").arg(package)); say(QStringLiteral("Copying new files")); for (const QString &p : kPrograms) { const QString from = package + QLatin1String("/bin/") + p; if (QFileInfo::exists(from) && !copyFile(from, prefix + QLatin1String("/bin/") + p, error)) return false; } for (const int major : {6, 5}) { const QString rel = QStringLiteral("/lib/xplasma/qt%1/styles/libxplasma.so").arg(major); if (QFileInfo::exists(package + rel) && !copyFile(package + rel, prefix + rel, error)) return false; } say(QStringLiteral("Copying XPlasma's builds of Plasma's widgets")); if (QFileInfo::exists(package + QLatin1String("/lib/xplasma/forks")) && !copyTree(package + QLatin1String("/lib/xplasma/forks"), prefix + QLatin1String("/lib/xplasma/forks"), error)) return false; // Desktop entries from `from` into `to`, their Exec the installed programs. auto entries = [&](const QString &from, const QString &to) { QDir().mkpath(to); for (const QFileInfo &desktop : QDir(from).entryInfoList({QStringLiteral("*.desktop")}, QDir::Files)) { QFile in(desktop.absoluteFilePath()); if (!in.open(QIODevice::ReadOnly)) continue; QByteArray text = in.readAll(); for (const QString &p : kPrograms) for (const char end : {' ', '\n'}) { const QByteArray from = QByteArray("\nExec=") + p.toUtf8() + end; const QByteArray to = QByteArray("\nExec=") + (prefix + QLatin1String("/bin/") + p).toUtf8() + end; text.replace(from, to); } QSaveFile out(to + QLatin1Char('/') + desktop.fileName()); if (!out.open(QIODevice::WriteOnly) || out.write(text) < 0 || !out.commit()) return fail(error, QStringLiteral("%1: %2").arg(out.fileName(), out.errorString())); } return true; }; // (the licence and the third-party notices) const QString licenses = QStringLiteral("/share/licenses/xplasma"); if (QFileInfo::exists(package + licenses) && !copyTree(package + licenses, prefix + licenses, error)) return false; say(QStringLiteral("Adding XPlasma to the application menu")); const QString apps = prefix + QLatin1String("/share/applications"); if (!entries(package + QLatin1String("/share/applications"), apps)) return false; for (const char *name : kRetiredEntries) QFile::remove(apps + QLatin1Char('/') + QLatin1String(name)); // (and what runs at login: the update check) if (!entries(package + QLatin1String("/share/xplasma/autostart"), autostartDir())) return false; if (const QString tool = QStandardPaths::findExecutable(QStringLiteral("update-desktop-database")); !tool.isEmpty()) QProcess::execute(tool, {QStringLiteral("-q"), apps}); State state = State::load(); state.settings.insert(QStringLiteral("installPrefix"), prefix); state.save(); return true;}
void removeFiles(const QString &prefix, bool extracted, bool downloads, const Progress &progress){ auto say = [&](const QString &line) { if (progress) progress(line); }; say(QStringLiteral("Removing XPlasma's files")); for (const char *name : kAutostart) QFile::remove(autostartDir() + QLatin1Char('/') + QLatin1String(name)); for (const QString &rel : installedPaths()) { const QString path = prefix + QLatin1Char('/') + rel; if (QFileInfo(path).isDir()) QDir(path).removeRecursively(); else QFile::remove(path); paths::removeEmptyDirs(QFileInfo(path).absolutePath(), prefix); } if (const QString tool = QStandardPaths::findExecutable(QStringLiteral("update-desktop-database")); !tool.isEmpty()) QProcess::execute(tool, {QStringLiteral("-q"), prefix + QLatin1String("/share/applications")}); if (downloads) { say(QStringLiteral("Removing the downloaded Windows XP CD image")); QDir(paths::downloads()).removeRecursively(); } if (extracted) { say(QStringLiteral("Removing the Windows XP files XPlasma took out")); QDir(paths::data()).removeRecursively(); QDir(paths::xpFonts()).removeRecursively(); // (Its cache, less the downloads when they stay.) for (const QFileInfo &f : QDir(paths::cache()).entryInfoList(QDir::AllEntries | QDir::NoDotAndDotDot | QDir::Hidden)) { if (f.absoluteFilePath() == QFileInfo(paths::downloads()).absoluteFilePath()) continue; if (f.isDir()) QDir(f.absoluteFilePath()).removeRecursively(); else QFile::remove(f.absoluteFilePath()); } QFile::remove(paths::config() + QLatin1String("/xplasmarc")); QDir().rmdir(paths::cache()); // (if the downloads went too) return; } State state = State::load(); state.settings.remove(QStringLiteral("installPrefix")); state.save();}
qint64 downloadsSize(){ qint64 total = 0; QDirIterator it(paths::downloads(), QDir::Files, QDirIterator::Subdirectories); while (it.hasNext()) { it.next(); total += it.fileInfo().size(); } return total;}
} // namespace xpl::installer