From a837ea28e986c8e2f49c470d647cd63f89cf8254 Mon Sep 17 00:00:00 2001
From: "A. Wilcox" <AWilcox@Wilcox-Tech.com>
Date: Sat, 13 Jun 2020 00:45:49 -0500
Subject: Qt UI: Execute: Use message buffer; flush log file

---
 ui/qt5/runner/executepage.cc | 17 ++++++++++++++++-
 ui/qt5/runner/executepage.hh |  3 +++
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/ui/qt5/runner/executepage.cc b/ui/qt5/runner/executepage.cc
index d5788df..7567597 100644
--- a/ui/qt5/runner/executepage.cc
+++ b/ui/qt5/runner/executepage.cc
@@ -94,7 +94,21 @@ void ExecutePage::executorReady() {
     QByteArray msgs = executor->readAllStandardError();
     log.write(msgs);
 
-    QStringList msgList = QString::fromUtf8(msgs).split("\n");
+    msgBuffer.append(msgs);
+    processMessages();
+}
+
+void ExecutePage::processMessages() {
+    QByteArray ready;
+
+    /* No message is ready yet. */
+    if(!msgBuffer.contains('\n')) return;
+
+    int len = msgBuffer.lastIndexOf('\n');
+    ready = msgBuffer.left(len);
+    msgBuffer.remove(0, len + 1);
+
+    QStringList msgList = QString::fromUtf8(ready).split("\n");
     for(auto &msg : msgList) {
         QString msgType = msg.section('\t', 1, 1);
         if(msgType == "step-start") {
@@ -125,6 +139,7 @@ void ExecutePage::executorFinished(int code, QProcess::ExitStatus status) {
         markFailed(this->current);
     }
 
+    log.flush();
     wizard()->button(QWizard::CancelButton)->setEnabled(false);
     finishTimer->start();
 }
diff --git a/ui/qt5/runner/executepage.hh b/ui/qt5/runner/executepage.hh
index 32987e7..77b3219 100644
--- a/ui/qt5/runner/executepage.hh
+++ b/ui/qt5/runner/executepage.hh
@@ -42,6 +42,7 @@ private:
     QProcess *executor;
     QTimer *finishTimer;
     QFile log;
+    QByteArray msgBuffer;
 
     Phase current;
     bool failed;
@@ -51,6 +52,8 @@ private:
     void markFinished(Phase phase);
     void markFailed(Phase phase);
 
+    void processMessages();
+
     void executorReady();
     void executorOutReady();
     void executorErrored(QProcess::ProcessError what);
-- 
cgit v1.2.3-60-g2f50