Projucer: add feature download & install live-build engine (including checks for supported OS versions)

2026-01-18 00:54:19 +00:00 · 2016-09-22 12:48:47 +01:00 · 2016-09-22 12:48:47 +01:00 · a0350e4ee6
commit a0350e4ee6
parent 42b8156cf6
13 changed files with 411 additions and 97 deletions
--- a/extras/Projucer/Source/Application/jucer_DownloadCompileEngineThread.cpp
+++ b/extras/Projucer/Source/Application/jucer_DownloadCompileEngineThread.cpp
@ -0,0 +1,156 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2015 - ROLI Ltd.
+
+   Permission is granted to use this software under the terms of either:
+   a) the GPL v2 (or any later version)
+   b) the Affero GPL v3
+
+   Details of these licenses can be found at: www.gnu.org/licenses
+
+   JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   ------------------------------------------------------------------------------
+
+   To release a closed-source product which uses JUCE, commercial licenses are
+   available: visit www.juce.com for more information.
+
+  ==============================================================================
+*/
+
+#include "../jucer_Headers.h"
+#include "jucer_DownloadCompileEngineThread.h"
+#include "../LiveBuildEngine/projucer_CompileEngineDLL.h"
+
+bool DownloadCompileEngineThread::downloadAndInstall()
+{
+    DownloadCompileEngineThread d;
+
+    if (d.runThread())
+    {
+        if (d.result.failed())
+            return withError (d.result.getErrorMessage());
+
+        return true;
+    }
+
+    if (d.cancelledByUser)
+        return false;
+
+    return withError (d.result.getErrorMessage());
+}
+
+DownloadCompileEngineThread::DownloadCompileEngineThread()
+    : ThreadWithProgressWindow ("Downloading live-build engine", true, true),
+      result (Result::ok()), cancelledByUser (false)
+{
+}
+
+void DownloadCompileEngineThread::threadComplete (bool userPressedCancel)
+{
+    cancelledByUser = userPressedCancel;
+}
+
+void DownloadCompileEngineThread::run()
+{
+    setProgress (-1.0);
+    setStatusMessage ("Downloading...");
+
+    MemoryBlock zipData;
+    result = download (zipData);
+
+    if (result.failed())
+        return;
+
+    setStatusMessage ("Installing...");
+
+    File installFolder = getInstallFolder();
+    if (! installFolder.createDirectory())
+    {
+        result = Result::fail ("Install error: cannot create target directory");
+        return;
+    }
+
+    result = install (zipData, installFolder);
+}
+
+Result DownloadCompileEngineThread::download (MemoryBlock& dest)
+{
+    int statusCode = 302;
+    const int timeoutMs = 10000;
+    StringPairArray responseHeaders;
+
+    URL url = getDownloadUrl();
+    ScopedPointer<InputStream> in = url.createInputStream (false, nullptr, nullptr,
+                                                           String(), timeoutMs, &responseHeaders,
+                                                           &statusCode, 0);
+
+    if (in == nullptr || statusCode != 200)
+        return Result::fail ("Download error: cannot establish connection");
+
+    MemoryOutputStream mo (dest, true);
+
+    int64 size = in->getTotalLength();
+    int64 bytesReceived = -1;
+    String msg("Downloading...  (123)");
+
+    for (int64 pos = 0; pos < size; pos += bytesReceived)
+    {
+        setStatusMessage (msg.replace ("123", File::descriptionOfSizeInBytes (pos)));
+
+        if (threadShouldExit())
+            return Result::fail ("Download error: operation interrupted");
+
+        bytesReceived = mo.writeFromInputStream (*in, 8192);
+
+        if (bytesReceived == 0)
+            return Result::fail ("Download error: lost connection");
+    }
+
+    return Result::ok();
+}
+
+Result DownloadCompileEngineThread::install (const MemoryBlock& data, File& targetFolder)
+{
+    MemoryInputStream input (data, false);
+    ZipFile zip (input);
+
+    if (zip.getNumEntries() == 0)
+        return Result::fail ("Install error: downloaded file is corrupt");
+
+    if (threadShouldExit())
+        return Result::fail ("Install error: operation interrupted");
+
+    return zip.uncompressTo (targetFolder);
+}
+
+URL DownloadCompileEngineThread::getDownloadUrl()
+{
+    String urlStub ("http://assets.roli.com/juce/JUCECompileEngine_");
+
+   #if JUCE_MAC
+    urlStub << "osx_";
+   #elif JUCE_WINDOWS
+    urlStub << "windows_";
+   #else
+    jassertfalse
+   #endif
+
+    return urlStub + ProjectInfo::versionString + ".zip";
+}
+
+File DownloadCompileEngineThread::getInstallFolder()
+{
+    return CompileEngineDLL::getVersionedUserAppSupportFolder();
+}
+
+bool DownloadCompileEngineThread::withError(const String& msg)
+{
+    AlertWindow::showMessageBox (AlertWindow::WarningIcon,
+                                 "Download and install", msg);
+    return false;
+}