Merge pull request #1481 from flxzt/shelldriver-remove-mktemp

driver: remove `mktemp` tool dependency in `ShellDriver`

Author: Emantor

labgrid/driver/shelldriver.py

@@ -5,6 +5,7 @@
 import re
 import shlex
 import ipaddress
+from uuid import uuid4
 
 import attr
 from pexpect import TIMEOUT
@@ -372,10 +373,16 @@ def _target_cleanup(tmpfile):
         stream = io.BytesIO(buf)
 
         # We first write to a temp file, which we'll `dd` onto the destination file later
-        tmpfile = self._run_check('mktemp')
+        try:
+            tmpfile = self._run_check('mktemp')
+            tmpfile = tmpfile[0]
+        except ExecutionError:
+            self.logger.info("Unable to execute 'mktemp', falling back to create temporary file with touch")
+            tmpfile = f'/tmp/tmp-{uuid4()}'
+            self._run_check(f'touch {tmpfile}')
+
         if not tmpfile:
             raise ExecutionError('Could not make temporary file on target')
-        tmpfile = tmpfile[0]
 
         try:
             rx_cmd = self._get_xmodem_rx_cmd(tmpfile)