Make 'git checkout' fault tolerant (#334)

'git checkout' operations are now reliant on network connectivity due to the use of `--filter=tree:0`. Therefore we need to invoke them using the fault tolerant function.

Author: hach-que

UET/Redpoint.Uet.Workspace/PhysicalGit/DefaultPhysicalGitCheckout.cs

@@ -947,7 +947,7 @@ private async Task CheckoutTargetCommitAsync(
             int exitCode;
 
             _logger.LogInformation($"Checking out target commit {resolvedReference.TargetCommit}...");
-            exitCode = await _processExecutor.ExecuteAsync(
+            exitCode = await FaultTolerantGitAsync(
                 new ProcessSpecification
                 {
                     FilePath = gitContext.Git,
@@ -980,7 +980,7 @@ private async Task CheckoutTargetCommitAsync(
                 {
                     // Re-attempt checkout...
                     _logger.LogInformation($"Re-attempting check out of target commit {resolvedReference.TargetCommit}...");
-                    exitCode = await _processExecutor.ExecuteAsync(
+                    exitCode = await FaultTolerantGitAsync(
                         new ProcessSpecification
                         {
                             FilePath = gitContext.Git,
@@ -1482,7 +1482,7 @@ private async Task CheckoutSubmoduleAsync(
 
             // Checkout the target commit.
             _logger.LogInformation($"Checking out submodule {submodule.Path} target commit {submoduleCommit}...");
-            exitCode = await _processExecutor.ExecuteAsync(
+            exitCode = await FaultTolerantGitAsync(
                 new ProcessSpecification
                 {
                     FilePath = git,