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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc
** All rights reserved.
** For any questions to Digia, please use the contact form at
** http://qt.digia.com/
**
** This file is part of Qt Enterprise Embedded.
**
** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** the contact form at http://qt.digia.com/
**
****************************************************************************/
#include "scriptwriter.h"
#include <QPair>
#include <QStringList>
#include <QFileInfo>
#include <QDebug>
#include <QTimer>
#include <QProcessEnvironment>
#include <QElapsedTimer>
#include <sys/stat.h>
#include "elevator.h"
#include "common.h"
ScriptWriter::ScriptWriter(QObject *parent)
: Actor(parent)
, mElapsed(new QElapsedTimer)
, mDebug(false)
{
mProcess.setProcessChannelMode(QProcess::MergedChannels);
mDebug = qEnvironmentVariableIsSet("DEBUG");
}
ScriptWriter::~ScriptWriter()
{
delete mElapsed;
}
void ScriptWriter::setScriptFile(const QString &fileName)
{
mScriptName = fileName;
}
bool ScriptWriter::ready(QString &error) const
{
if (mScriptName.isEmpty()) {
error = "File name is empty";
return false;
}
QFileInfo file(mScriptName);
if (!file.exists()) {
error = "File does not exist: " + mScriptName;
return false;
}
if (!file.isFile()) {
error = "File " + mScriptName + " is not a file";
return false;
}
if (!file.isReadable()) {
error = "File is not readable";
return false;
}
if (!file.isExecutable()) {
error = "File is not executable";
return false;
}
if (file.size() == 0) {
error = "File is empty";
return false;
}
return true;
}
void ScriptWriter::start()
{
connect(&mProcess, &QProcess::readyReadStandardOutput, this, &ScriptWriter::readOutput);
connect(&mProcess, (void (QProcess::*)(QProcess::ProcessError))&QProcess::error, this, &ScriptWriter::processError);
connect(&mProcess, (void (QProcess::*)(int, QProcess::ExitStatus))&QProcess::finished, this, &ScriptWriter::processFinished);
// Due to some random convenience output in the deploy scripts "set -x" has to be used to synchronize
QStringList args = elevate() << "/bin/sh" << "-x" << mScriptName << mAdditionalArgs;
qDebug() << "Executing" << args;
/* QProcessEnvironment pe ;
QString var = qgetenv("XDG_SESSION_COOKIE");
pe.insert("XDG_SESSION_COOKIE", var);
var = qgetenv("HOME");
pe.insert("HOME", var);
mProcess.setProcessEnvironment(pe);
*/
mProcess.setProcessEnvironment(QProcessEnvironment::systemEnvironment());
mProcess.start(args.takeFirst(), args);
if (!mProcess.waitForStarted())
qFatal("Failed to start script");
mElapsed->start();
mProcess.write("y\n");
}
void ScriptWriter::readOutput()
{
QByteArray ba = mProcess.readAllStandardOutput();
QList<QByteArray> baList = ba.split('\n');
static unsigned int currentProgress = 0;
unsigned int nextProgress = 0;
unsigned int milliseconds = 0;
unsigned int whole = 0;
if (!mTimings.isEmpty())
whole = mTimings.last().second;
foreach (const QByteArray &line, baList) {
if (line.startsWith("+")) {
// Command line
while (!mTimings.isEmpty() && !mTimings.first().first)
mTimings.removeFirst();
// Should not happen
if (mTimings.isEmpty())
break;
currentProgress = mTimings.takeFirst().second;
} else {
// Output line
if (!mTimings.isEmpty() && !mTimings.first().first)
currentProgress = mTimings.takeFirst().second;
}
}
if (!mTimings.isEmpty()) {
nextProgress = mTimings.first().second;
milliseconds = mTimings.last().second / 100 * (nextProgress - currentProgress);
} else {
nextProgress = currentProgress;
}
double slowness = ((double)currentProgress / mElapsed->elapsed()) * (whole/100.0);
// if (slowness == 0)
slowness = 1;
if (mDebug) {
qDebug() << ba;
qDebug() << "slowness:" << slowness << "currentProgress:" << currentProgress << "elapsed:" << mElapsed->elapsed() << "milliseconds:" << milliseconds << "nextProgress:" << nextProgress << "whole:" << whole << "stack:" << mTimings.size();
}
if (currentProgress > 100)
currentProgress = 100;
if (nextProgress > 100)
nextProgress = 100;
if (currentProgress || nextProgress)
emit progress(currentProgress, nextProgress, milliseconds/slowness);
emit details(ba);
}
void ScriptWriter::processFinished(int exitCode, QProcess::ExitStatus exitStatus)
{
if (exitStatus != QProcess::NormalExit) {
qWarning("process crashed");
return;
}
if (exitCode != 0) {
qWarning("process failed");
return;
}
emit finished();
}
void ScriptWriter::processError(QProcess::ProcessError error)
{
qWarning() << "processError" << error;
}
void ScriptWriter::setEnvironment(const QString &key, const QString &value)
{
QProcessEnvironment env = mProcess.processEnvironment();
env.insert(key, value);
mProcess.setProcessEnvironment(env);
}
void ScriptWriter::setProgressFile(const QString &fileName)
{
mTimings.clear();
QFile f(fileName);
if (!f.open(QFile::ReadOnly)) {
qWarning() << "Could not open progress file";
return;
}
bool ok;
while (!f.atEnd()) {
QByteArray line = f.readLine().simplified();
int i = line.toInt(&ok);
if (!ok) {
qWarning() << "Could not parse progress file:" << line;
mTimings.clear();
return;
}
if (i < 0)
mTimings += qMakePair(true, -i);
else if (i == 0)
mTimings += qMakePair(line.startsWith('-'), 0);
else
mTimings += qMakePair(false, i);
}
qDebug() << "steps" << mTimings.size();
}
void ScriptWriter::setAdditionalArgs(const QStringList &args)
{
mAdditionalArgs = args;
}
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