Duplicate travis_retry()

set_up_travis_logs.sh

@@ -1,5 +1,30 @@
 #!/bin/bash
 
+function travis_retry() {
+  $Local:result = 0
+  $Local:count  = 1
+  $Local:cmd_string = $args -join ' '
+
+  while ( $count -le 3 ) {
+    if ( $result -ne 0 ) {
+      Write-Host -foregroundColor Red "`nThe command ""$cmd_string"" failed. Retrying, $count of 3.`n" 2>&1
+    }
+    Invoke-Expression($cmd_string)
+    $result = $LastExitCode
+    if ( $result -eq 0 ) {
+      break
+    }
+    $count=$count + 1
+    sleep 1
+  }
+
+  if ( $count -eq 3 ) {
+    Write-Host -foregroundColor Red "`nThe command ""$cmd_string"" failed 3 times.`n" 2>&1
+  }
+
+  return $result
+}
+
 # clone travis-logs
 pushd $HOME
 git clone --depth=1 https://github.com/travis-ci/travis-logs.git