GitClient: Replace rev-list command with QtcProcess

There is no need to use VcsCommand when NoOutput is passed.
Get rid of asyncUpstreamStatus().

Change-Id: Iae6869be9640c7662545906d28314ac47cd69e3d
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>

src/plugins/git/branchmodel.cpp

@@ -8,8 +8,10 @@
 #include <vcsbase/vcscommand.h>
 #include <vcsbase/vcsoutputwindow.h>
 
+#include <utils/environment.h>
 #include <utils/filesystemwatcher.h>
 #include <utils/qtcassert.h>
+#include <utils/qtcprocess.h>
 #include <utils/stringutils.h>
 
 #include <QDateTime>
@@ -886,9 +888,17 @@ void BranchModel::updateUpstreamStatus(BranchNode *node)
 {
     if (node->tracking.isEmpty())
         return;
-    VcsCommand *command = d->client->asyncUpstreamStatus(
-                d->workingDirectory, node->fullRef(), node->tracking);
-    QObject::connect(command, &VcsCommand::stdOutText, node, [this, node](const QString &text) {
+
+    QtcProcess *process = new QtcProcess(node);
+    process->setEnvironment(d->client->processEnvironment());
+    process->setCommand({d->client->vcsBinary(), {"rev-list", "--no-color", "--left-right",
+                         "--count", node->fullRef() + "..." + node->tracking}});
+    process->setWorkingDirectory(d->workingDirectory);
+    connect(process, &QtcProcess::done, this, [this, process, node] {
+        process->deleteLater();
+        if (process->result() != ProcessResult::FinishedWithSuccess)
+            return;
+        const QString text = process->cleanedStdOut();
         if (text.isEmpty())
             return;
         const QStringList split = text.trimmed().split('\t');
@@ -898,6 +908,7 @@ void BranchModel::updateUpstreamStatus(BranchNode *node)
         const QModelIndex idx = nodeToIndex(node, ColumnBranch);
         emit dataChanged(idx, idx);
     });
+    process->start();
 }
 
 QString BranchModel::toolTip(const QString &sha) const

src/plugins/git/gitclient.cpp

@@ -3166,15 +3166,6 @@ bool GitClient::synchronousSetTrackingBranch(const FilePath &workingDirectory,
     return result.result() == ProcessResult::FinishedWithSuccess;
 }
 
-VcsCommand *GitClient::asyncUpstreamStatus(const FilePath &workingDirectory,
-                                           const QString &branch,
-                                           const QString &upstream)
-{
-    const QStringList args {"rev-list", noColorOption, "--left-right", "--count",
-                branch + "..." + upstream};
-    return vcsExec(workingDirectory, args, nullptr, false, VcsCommand::NoOutput);
-}
-
 void GitClient::handleMergeConflicts(const FilePath &workingDir, const QString &commit,
                                      const QStringList &files, const QString &abortCommand)
 {

src/plugins/git/gitclient.h

@@ -332,9 +332,6 @@ public:
     void show(const QString &source, const QString &id, const QString &name = {});
     void archive(const Utils::FilePath &workingDirectory, QString commit);
 
-    VcsBase::VcsCommand *asyncUpstreamStatus(const Utils::FilePath &workingDirectory,
-                                             const QString &branch, const QString &upstream);
-
     enum class BranchTargetType { Remote, Commit };
     static QString suggestedLocalBranchName(
             const Utils::FilePath &workingDirectory, const QStringList &existingLocalNames,