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GH-1060 implement very basic updater (only linux and maybe osx right now)

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This commit is contained in:
Petr Mrázek
2015-06-08 02:43:16 +02:00
parent 166813cb91
commit 82e05661d2
8 changed files with 170 additions and 116 deletions
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2
application/MainWindow.cpp
View File

@@ -992,7 +992,7 @@ void MainWindow::downloadUpdates(GoUpdate::Status status)
// If the task succeeds, install the updates.
if (updateDlg.exec(&updateTask))
{
MMC->installUpdates(updateTask.updateFilesDir());
MMC->installUpdates(updateTask.updateFilesDir(), updateTask.operations());
}
else
{

162
application/MultiMC.cpp
View File

@@ -583,7 +583,69 @@ std::shared_ptr<JavaVersionList> MultiMC::javalist()
return m_javalist;
}
void MultiMC::installUpdates(const QString updateFilesDir)
// from <sys/stat.h>
#ifndef S_IRUSR
#define __S_IREAD 0400 /* Read by owner. */
#define __S_IWRITE 0200 /* Write by owner. */
#define __S_IEXEC 0100 /* Execute by owner. */
#define S_IRUSR __S_IREAD /* Read by owner. */
#define S_IWUSR __S_IWRITE /* Write by owner. */
#define S_IXUSR __S_IEXEC /* Execute by owner. */
#define S_IRGRP (S_IRUSR >> 3) /* Read by group. */
#define S_IWGRP (S_IWUSR >> 3) /* Write by group. */
#define S_IXGRP (S_IXUSR >> 3) /* Execute by group. */
#define S_IROTH (S_IRGRP >> 3) /* Read by others. */
#define S_IWOTH (S_IWGRP >> 3) /* Write by others. */
#define S_IXOTH (S_IXGRP >> 3) /* Execute by others. */
#endif
static QFile::Permissions unixModeToPermissions(const int mode)
{
QFile::Permissions perms;
if (mode & S_IRUSR)
{
perms |= QFile::ReadUser;
}
if (mode & S_IWUSR)
{
perms |= QFile::WriteUser;
}
if (mode & S_IXUSR)
{
perms |= QFile::ExeUser;
}
if (mode & S_IRGRP)
{
perms |= QFile::ReadGroup;
}
if (mode & S_IWGRP)
{
perms |= QFile::WriteGroup;
}
if (mode & S_IXGRP)
{
perms |= QFile::ExeGroup;
}
if (mode & S_IROTH)
{
perms |= QFile::ReadOther;
}
if (mode & S_IWOTH)
{
perms |= QFile::WriteOther;
}
if (mode & S_IXOTH)
{
perms |= QFile::ExeOther;
}
return perms;
}
void MultiMC::installUpdates(const QString updateFilesDir, GoUpdate::OperationList operations)
{
qDebug() << "Installing updates.";
#ifdef WINDOWS
@@ -596,14 +658,96 @@ void MultiMC::installUpdates(const QString updateFilesDir)
#error Unsupported operating system.
#endif
QStringList args;
args << "--install-dir" << root();
args << "--package-dir" << updateFilesDir;
args << "--script" << PathCombine(updateFilesDir, "file_list.xml");
args << "--wait" << QString::number(applicationPid());
args << "--finish-cmd" << finishCmd;
args << "--finish-dir" << dataPath;
qDebug() << "Running updater with args" << args.join(" ");
QString backupPath = PathCombine(root(), "update-backup");
QString trashPath = PathCombine(root(), "update-trash");
if(!ensureFolderPathExists(backupPath))
{
qWarning() << "couldn't create folder" << backupPath;
return;
}
if(!ensureFolderPathExists(trashPath))
{
qWarning() << "couldn't create folder" << trashPath;
return;
}
struct BackupEntry
{
QString orig;
QString backup;
};
QList <BackupEntry> backups;
QList <BackupEntry> trashcan;
for(auto op: operations)
{
switch(op.type)
{
case GoUpdate::Operation::OP_COPY:
{
QFileInfo replaced (PathCombine(root(), op.dest));
if(replaced.exists())
{
QString backupFilePath = PathCombine(backupPath, replaced.completeBaseName());
QFile::rename(replaced.absoluteFilePath(), backupFilePath);
BackupEntry be;
be.orig = replaced.absoluteFilePath();
be.backup = backupFilePath;
backups.append(be);
}
QFile::copy(op.file, replaced.absoluteFilePath());
QFile::setPermissions(replaced.absoluteFilePath(), unixModeToPermissions(op.mode));
}
break;
case GoUpdate::Operation::OP_DELETE:
{
QString trashFilePath = PathCombine(backupPath, op.file);
QString origFilePath = PathCombine(root(), op.file);
if(QFile::exists(origFilePath))
{
QFile::rename(origFilePath, trashFilePath);
BackupEntry be;
be.orig = origFilePath;
be.backup = trashFilePath;
trashcan.append(be);
}
}
break;
}
}
// try to start the new binary
qint64 pid = -1;
auto args = qApp->arguments();
args.removeFirst();
QProcess::startDetached(finishCmd, args, QDir::currentPath(), &pid);
// failed to start... ?
if(pid == -1)
{
goto FAILED;
}
// now clean up the backed up stuff.
for(auto backup:backups)
{
QFile::remove(backup.backup);
}
for(auto backup:trashcan)
{
QFile::remove(backup.backup);
}
qApp->quit();
return;
FAILED:
// if the above failed, roll back changes
for(auto backup:backups)
{
QFile::remove(backup.orig);
QFile::rename(backup.backup, backup.orig);
}
for(auto backup:trashcan)
{
QFile::rename(backup.backup, backup.orig);
}
// and do nothing
}
void MultiMC::setIconTheme(const QString& name)

3
application/MultiMC.h
View File

@@ -6,6 +6,7 @@
#include <QFlag>
#include <QIcon>
#include <QDateTime>
#include <updater/GoUpdate.h>
class QFile;
class MinecraftVersionList;
@@ -105,7 +106,7 @@ public:
}
// APPLICATION ONLY
void installUpdates(const QString updateFilesDir);
void installUpdates(const QString updateFilesDir, GoUpdate::OperationList operations);
/*!
* Opens a json file using either a system default editor, or, if note empty, the editor

15
logic/updater/DownloadTask.cpp
View File

@@ -89,7 +89,6 @@ void DownloadTask::processDownloadedVersionInfo()
{
VersionFileList m_currentVersionFileList;
VersionFileList m_newVersionFileList;
OperationList operationList;
setStatus(tr("Reading file list for new version..."));
qDebug() << "Reading file list for new version...";
@@ -125,19 +124,12 @@ void DownloadTask::processDownloadedVersionInfo()
NetJobPtr netJob (new NetJob("Update Files"));
// fill netJob and operationList
if (!processFileLists(m_currentVersionFileList, m_newVersionFileList, m_status.rootPath, m_updateFilesDir.path(), netJob, operationList))
if (!processFileLists(m_currentVersionFileList, m_newVersionFileList, m_status.rootPath, m_updateFilesDir.path(), netJob, m_operations))
{
emitFailed(tr("Failed to process update lists..."));
return;
}
// write the instruction file for the file swapper
if(!writeInstallScript(operationList, PathCombine(m_updateFilesDir.path(), "file_list.xml")))
{
emitFailed(tr("Failed to write update script file."));
return;
}
// Now start the download.
QObject::connect(netJob.get(), &NetJob::succeeded, this, &DownloadTask::fileDownloadFinished);
QObject::connect(netJob.get(), &NetJob::progress, this, &DownloadTask::fileDownloadProgressChanged);
@@ -170,4 +162,9 @@ QString DownloadTask::updateFilesDir()
return m_updateFilesDir.path();
}
OperationList DownloadTask::operations()
{
return m_operations;
}
}

5
logic/updater/DownloadTask.h
View File

@@ -35,6 +35,9 @@ public:
/// Get the directory that will contain the update files.
QString updateFilesDir();
/// Get the list of operations that should be done
OperationList operations();
/// set updater download behavior
void setUseLocalUpdater(bool useLocal);
@@ -61,6 +64,8 @@ protected:
Status m_status;
OperationList m_operations;
/*!
* Temporary directory to store update files in.
* This will be set to not auto delete. Task will fail if this fails to be created.

74
logic/updater/GoUpdate.cpp
View File

@@ -213,78 +213,4 @@ bool fixPathForOSX(QString &path)
return false;
}
}
bool writeInstallScript(OperationList &opsList, QString scriptFile)
{
// Build the base structure of the XML document.
QDomDocument doc;
QDomElement root = doc.createElement("update");
root.setAttribute("version", "3");
doc.appendChild(root);
QDomElement installFiles = doc.createElement("install");
root.appendChild(installFiles);
QDomElement removeFiles = doc.createElement("uninstall");
root.appendChild(removeFiles);
// Write the operation list to the XML document.
for (Operation op : opsList)
{
QDomElement file = doc.createElement("file");
switch (op.type)
{
case Operation::OP_COPY:
{
// Install the file.
QDomElement name = doc.createElement("source");
QDomElement path = doc.createElement("dest");
QDomElement mode = doc.createElement("mode");
name.appendChild(doc.createTextNode(op.file));
path.appendChild(doc.createTextNode(op.dest));
// We need to add a 0 at the beginning here, because Qt doesn't convert to octal
// correctly.
mode.appendChild(doc.createTextNode("0" + QString::number(op.mode, 8)));
file.appendChild(name);
file.appendChild(path);
file.appendChild(mode);
installFiles.appendChild(file);
qDebug() << "Will install file " << op.file << " to " << op.dest;
}
break;
case Operation::OP_DELETE:
{
// Delete the file.
file.appendChild(doc.createTextNode(op.file));
removeFiles.appendChild(file);
qDebug() << "Will remove file" << op.file;
}
break;
default:
qWarning() << "Can't write update operation of type" << op.type
<< "to file. Not implemented.";
continue;
}
}
// Write the XML document to the file.
QFile outFile(scriptFile);
if (outFile.open(QIODevice::WriteOnly))
{
outFile.write(doc.toByteArray());
}
else
{
return false;
}
return true;
}
}

11
logic/updater/GoUpdate.h
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@@ -88,22 +88,17 @@ struct Operation
OP_DELETE,
} type;
//! The file to operate on. If this is a DELETE or CHMOD operation, this is the file that will be modified.
//! The file to operate on.
QString file;
//! The destination file. If this is a DELETE or CHMOD operation, this field will be ignored.
//! The destination file.
QString dest;
//! The mode to change the source file to. Ignored if this isn't a CHMOD operation.
//! The mode to change the source file to.
int mode;
};
typedef QList<Operation> OperationList;
/**
* Takes the @OperationList list and writes an install script for the updater to the update files directory.
*/
bool writeInstallScript(OperationList& opsList, QString scriptFile);
/**
* Loads the file list from the given version info JSON object into the given list.
*/

14
tests/tst_DownloadTask.cpp
View File

@@ -69,20 +69,6 @@ slots:
{
}
void test_writeInstallScript()
{
OperationList ops;
ops << Operation::CopyOp("sourceOne", "destOne", 0777)
<< Operation::CopyOp("MultiMC.exe", "M/u/l/t/i/M/C/e/x/e")
<< Operation::DeleteOp("toDelete.abc");
auto testFile = "tests/data/tst_DownloadTask-test_writeInstallScript.xml";
const QString script = QDir::temp().absoluteFilePath("MultiMCUpdateScript.xml");
QVERIFY(writeInstallScript(ops, script));
QCOMPARE(TestsInternal::readFileUtf8(script).replace(QRegExp("[\r\n]+"), "\n"),
MULTIMC_GET_TEST_FILE_UTF8(testFile).replace(QRegExp("[\r\n]+"), "\n"));
}
void test_parseVersionInfo_data()
{
QTest::addColumn<QByteArray>("data");