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#include "kpathseaParser.h"
#include "utilsSystem.h"
PackageScanner::PackageScanner(QObject *parent) :
SafeThread(parent)
{
stopped = false;
}
void PackageScanner::savePackageList(QSet<QString> packages, const QString &filename)
{
QFile f(filename);
if (f.open(QFile::WriteOnly | QFile::Text)) {
QTextStream out(&f);
out << "% detected .sty and .cls filenames\n";
foreach (const QString &str, packages) {
out << str << "\n";
}
}
}
QSet<QString> PackageScanner::readPackageList(const QString &filename)
{
QFile f(filename);
QSet<QString> result;
if (f.open(QFile::ReadOnly | QFile::Text)) {
QTextStream in(&f);
QString line;
while (!in.atEnd()) {
line = in.readLine();
if (line.isEmpty() || line.startsWith('%')) continue;
result.insert(line);
}
}
return result;
}
void PackageScanner::stop()
{
stopped = true;
}
KpathSeaParser::KpathSeaParser(QString kpsecmd, QObject *parent) :
PackageScanner(parent)
{
kpseWhichCmd = kpsecmd;
}
void KpathSeaParser::run()
{
QSet<QString> results;
QString res = kpsewhich("--show-path ls-R");
QStringList lstOfFiles = res.split(getPathListSeparator()); // find lcoations of ls-R (file database of tex)
foreach (QString fn, lstOfFiles) {
if (stopped)
return;
fn = fn.trimmed() + "/ls-R";
QFile data(fn);
QString line;
if (data.open(QIODevice::ReadOnly | QIODevice::Text)) {
QTextStream stream(&data);
while (!stream.atEnd()) {
line = stream.readLine();
if (line.endsWith(".sty") || line.endsWith(".cls")) {
line.chop(4);
results.insert(line);
}
}
}
}
emit scanCompleted(results);
}
QString KpathSeaParser::kpsewhich(const QString &arg)
{
return execCommand(kpseWhichCmd + " " + arg);
}
MiktexPackageScanner::MiktexPackageScanner(QString mpmcmd, QString settingsDir, QObject *parent)
: PackageScanner(parent)
{
this->mpmCmd = mpmcmd;
this->settingsDir = settingsDir;
}
QString MiktexPackageScanner::mpm(const QString &arg)
{
return execCommand(mpmCmd + " " + arg);
}
void MiktexPackageScanner::savePackageMap(const QHash<QString, QStringList> &map)
{
QFile f(ensureTrailingDirSeparator(settingsDir) + "miktexPackageNames.dat");
if (f.open(QFile::WriteOnly | QFile::Text)) {
QTextStream out(&f);
out << "% This file maps the MikTeX package names to the .sty and .cls file names.\n";
out << "% It's used as cache for a fast lookup. It's automatically created and may be deleted without harm.\n";
foreach (const QString &mpmName, map.keys()) {
out << mpmName << ":" << map.value(mpmName).join(",") << "\n";
}
}
}
QHash<QString, QStringList> MiktexPackageScanner::loadPackageMap()
{
QFile f(ensureTrailingDirSeparator(settingsDir) + "miktexPackageNames.dat");
QHash<QString, QStringList> result;
if (f.open(QFile::ReadOnly | QFile::Text)) {
QTextStream in(&f);
QString line;
QStringList lst;
while (!in.atEnd()) {
line = in.readLine();
if (line.isEmpty() || line.startsWith('%')) continue;
lst = line.split(":");
if (lst.length() < 2) continue;
result.insert(lst[0], lst[1].split(","));
}
}
return result;
}
QStringList MiktexPackageScanner::stysForPackage(const QString &pck)
{
QStringList result;
QStringList lines = mpm("--print-package-info " + pck).split("\n");
bool inRunTimeFilesSection = false;
foreach (const QString &l, lines) {
if (!inRunTimeFilesSection) {
if (l.startsWith("run-time files:"))
inRunTimeFilesSection = true;
continue;
} else {
QString fn = l.simplified();
if (fn.endsWith(":")) break; // start of a new section
fn = QFileInfo(fn).fileName();
if (fn.endsWith(".sty") || fn.endsWith(".cls")) {
fn.chop(4);
result.append(fn);
}
}
}
return result;
}
void MiktexPackageScanner::run()
{
QSet<QString> results;
QHash<QString, QStringList> cachedStys = loadPackageMap();
QStringList lstOfPackages = mpm("--list").split("\n");
foreach (QString pck, lstOfPackages) {
if (stopped)
return;
QStringList parts = pck.simplified().split(" "); // output format of "mpm --list": installation status, number of files, size, database name
if (parts.count() != 4) continue;
if (parts[0] != "i") continue; // not installed
pck = parts[3];
QStringList stys;
if (cachedStys.contains(pck)) {
stys = cachedStys.value(pck);
} else {
stys = stysForPackage(pck);
cachedStys.insert(pck, stys);
}
foreach (const QString &sty, stys) {
results.insert(sty);
}
}
savePackageMap(cachedStys);
emit scanCompleted(results);
}
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