Initial implementation of GithubWorkflowTool

Co-authored-by: johndoe6345789 <224850594+johndoe6345789@users.noreply.github.com>

src/backends/ContainerBackend.cpp

@@ -0,0 +1,133 @@
+#include "backends/ContainerBackend.h"
+#include <QProcess>
+#include <QDebug>
+
+namespace gwt {
+namespace backends {
+
+ContainerBackend::ContainerBackend(QObject* parent)
+    : ExecutionBackend(parent)
+{
+    detectRuntime();
+}
+
+ContainerBackend::~ContainerBackend() {
+    cleanup();
+}
+
+bool ContainerBackend::executeStep(const core::WorkflowStep& step,
+                                   const QVariantMap& context) {
+    if (m_containerId.isEmpty()) {
+        emit error("Container not prepared");
+        return false;
+    }
+    
+    // Execute command in container
+    if (!step.run.isEmpty()) {
+        QProcess process;
+        QStringList args;
+        args << "exec" << m_containerId << "sh" << "-c" << step.run;
+        
+        process.start(m_containerRuntime, args);
+        
+        if (!process.waitForFinished(300000)) { // 5 minutes
+            emit error("Step execution timeout");
+            return false;
+        }
+        
+        QString output = QString::fromUtf8(process.readAllStandardOutput());
+        emit this->output(output);
+        
+        if (process.exitCode() != 0) {
+            QString errorMsg = QString::fromUtf8(process.readAllStandardError());
+            emit error("Step failed: " + errorMsg);
+            return false;
+        }
+    } else if (!step.uses.isEmpty()) {
+        // Handle actions like actions/checkout@v3
+        emit this->output("Action execution: " + step.uses + " (stub)");
+        // Would need more complex action resolution
+    }
+    
+    return true;
+}
+
+bool ContainerBackend::prepareEnvironment(const QString& runsOn) {
+    QString image = mapRunsOnToImage(runsOn);
+    
+    QProcess process;
+    QStringList args;
+    args << "run" << "-d" << "-it" << image << "sh";
+    
+    process.start(m_containerRuntime, args);
+    
+    if (!process.waitForFinished(60000)) {
+        emit error("Container creation timeout");
+        return false;
+    }
+    
+    if (process.exitCode() != 0) {
+        QString errorMsg = QString::fromUtf8(process.readAllStandardError());
+        emit error("Failed to create container: " + errorMsg);
+        return false;
+    }
+    
+    m_containerId = QString::fromUtf8(process.readAllStandardOutput()).trimmed();
+    return !m_containerId.isEmpty();
+}
+
+void ContainerBackend::cleanup() {
+    if (!m_containerId.isEmpty()) {
+        QProcess process;
+        QStringList args;
+        args << "rm" << "-f" << m_containerId;
+        
+        process.start(m_containerRuntime, args);
+        process.waitForFinished(30000);
+        
+        m_containerId.clear();
+    }
+}
+
+bool ContainerBackend::detectRuntime() {
+    // Try docker first
+    QProcess dockerCheck;
+    dockerCheck.start("docker", QStringList() << "--version");
+    
+    if (dockerCheck.waitForFinished(5000) && dockerCheck.exitCode() == 0) {
+        m_containerRuntime = "docker";
+        return true;
+    }
+    
+    // Try podman
+    QProcess podmanCheck;
+    podmanCheck.start("podman", QStringList() << "--version");
+    
+    if (podmanCheck.waitForFinished(5000) && podmanCheck.exitCode() == 0) {
+        m_containerRuntime = "podman";
+        return true;
+    }
+    
+    return false;
+}
+
+QString ContainerBackend::mapRunsOnToImage(const QString& runsOn) const {
+    // Map GitHub runner specs to container images
+    if (runsOn.contains("ubuntu-latest") || runsOn.contains("ubuntu-22.04")) {
+        return "ubuntu:22.04";
+    } else if (runsOn.contains("ubuntu-20.04")) {
+        return "ubuntu:20.04";
+    } else if (runsOn.contains("ubuntu")) {
+        return "ubuntu:latest";
+    } else if (runsOn.contains("debian")) {
+        return "debian:latest";
+    } else if (runsOn.contains("alpine")) {
+        return "alpine:latest";
+    }
+    
+    // Default
+    return "ubuntu:22.04";
+}
+
+} // namespace backends
+} // namespace gwt