1 files changed, 125 insertions, 0 deletions
diff --git a/launcher/updater/GoUpdate.h b/launcher/updater/GoUpdate.h
new file mode 100644
index 00000000..8058e543
--- /dev/null
+++ b/launcher/updater/GoUpdate.h
@@ -0,0 +1,125 @@
+#pragma once
+#include <QByteArray>
+#include <net/NetJob.h>
+
+namespace GoUpdate
+{
+
+/**
+ * A temporary object exchanged between updated checker and the actual update task
+ */
+struct Status
+{
+    bool updateAvailable = false;
+
+    int newVersionId = -1;
+    QString newRepoUrl;
+
+    int currentVersionId = -1;
+    QString currentRepoUrl;
+
+    // path to the root of the application
+    QString rootPath;
+};
+
+/**
+ * Struct that describes an entry in a VersionFileEntry's `Sources` list.
+ */
+struct FileSource
+{
+    FileSource(QString type, QString url, QString compression="")
+    {
+        this->type = type;
+        this->url = url;
+        this->compressionType = compression;
+    }
+
+    bool operator==(const FileSource &f2) const
+    {
+        return type == f2.type && url == f2.url && compressionType == f2.compressionType;
+    }
+
+    QString type;
+    QString url;
+    QString compressionType;
+};
+typedef QList<FileSource> FileSourceList;
+
+/**
+ * Structure that describes an entry in a GoUpdate version's `Files` list.
+ */
+struct VersionFileEntry
+{
+    QString path;
+    int mode;
+    FileSourceList sources;
+    QString md5;
+    bool operator==(const VersionFileEntry &v2) const
+    {
+        return path == v2.path && mode == v2.mode && sources == v2.sources && md5 == v2.md5;
+    }
+};
+typedef QList<VersionFileEntry> VersionFileList;
+
+/**
+ * Structure that describes an operation to perform when installing updates.
+ */
+struct Operation
+{
+    static Operation CopyOp(QString from, QString to, int fmode=0644)
+    {
+        return Operation{OP_REPLACE, from, to, fmode};
+    }
+    static Operation DeleteOp(QString file)
+    {
+        return Operation{OP_DELETE, QString(), file, 0644};
+    }
+
+    // FIXME: for some types, some of the other fields are irrelevant!
+    bool operator==(const Operation &u2) const
+    {
+        return type == u2.type &&
+            source == u2.source &&
+            destination == u2.destination &&
+            destinationMode == u2.destinationMode;
+    }
+
+    //! Specifies the type of operation that this is.
+    enum Type
+    {
+        OP_REPLACE,
+        OP_DELETE,
+    } type;
+
+    //! The source file, if any
+    QString source;
+
+    //! The destination file.
+    QString destination;
+
+    //! The mode to change the destination file to.
+    int destinationMode;
+};
+typedef QList<Operation> OperationList;
+
+/**
+ * Loads the file list from the given version info JSON object into the given list.
+ */
+bool parseVersionInfo(const QByteArray &data, VersionFileList& list, QString &error);
+
+/*!
+ * Takes a list of file entries for the current version's files and the new version's files
+ * and populates the downloadList and operationList with information about how to download and install the update.
+ */
+bool processFileLists
+(
+    const VersionFileList &currentVersion,
+    const VersionFileList &newVersion,
+    const QString &rootPath,
+    const QString &tempPath,
+    NetJobPtr job,
+    OperationList &ops
+);
+
+}
+Q_DECLARE_METATYPE(GoUpdate::Status)