[PATCH 2/5] dts: skip first line of send_command output

[Luca Vizzarro <luca.vizzarro@arm.com>]

The first line of the InteractiveShell send_command method is generally
the command input field. This sometimes is unwanted, therefore this
commit enables the possibility of omitting the first line from the
returned output.

Signed-off-by: Luca Vizzarro <luca.vizzarro@arm.com>
Reviewed-by: Paul Szczepanek <paul.szczepanek@arm.com>
Reviewed-by: Jack Bond-Preston <jack.bond-preston@arm.com>
---
 dts/framework/remote_session/interactive_shell.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/dts/framework/remote_session/interactive_shell.py b/dts/framework/remote_session/interactive_shell.py
index 8a9bf96ea9..e290a083e9 100644
--- a/dts/framework/remote_session/interactive_shell.py
+++ b/dts/framework/remote_session/interactive_shell.py
@@ -105,7 +105,9 @@ def _start_application(self, get_privileged_command: Callable[[str], str] | None
             start_command = get_privileged_command(start_command)
         self.send_command(start_command)
 
-    def send_command(self, command: str, prompt: str | None = None) -> str:
+    def send_command(
+        self, command: str, prompt: str | None = None, skip_first_line: bool = False
+    ) -> str:
         """Send `command` and get all output before the expected ending string.
 
         Lines that expect input are not included in the stdout buffer, so they cannot
@@ -121,6 +123,7 @@ def send_command(self, command: str, prompt: str | None = None) -> str:
             command: The command to send.
             prompt: After sending the command, `send_command` will be expecting this string.
                 If :data:`None`, will use the class's default prompt.
+            skip_first_line: Skip the first line when capturing the output.
 
         Returns:
             All output in the buffer before expected string.
@@ -132,6 +135,9 @@ def send_command(self, command: str, prompt: str | None = None) -> str:
         self._stdin.flush()
         out: str = ""
         for line in self._stdout:
+            if skip_first_line:
+                skip_first_line = False
+                continue
             if prompt in line and not line.rstrip().endswith(
                 command.rstrip()
             ):  # ignore line that sent command
-- 
2.34.1