Muminul Islam 305451cce4 scripts: dev_cli: Add signal handling for graceful cleanup ...

During development, it is common to cancel a running test and
rerun it after making changes. However, pressing Ctrl+C while
dev_cli.sh runs long-running container commands (wget, qemu-img,
cargo build, etc.) does not reliably terminate the process.
Bash defers signal handling while a foreground process is
running, so the trap only fires after the docker run command
returns. This makes it difficult to cancel and restart quickly.

Fix this by introducing a run_container() wrapper that runs
docker in the background and uses 'wait', which is immediately
interruptible by signals. A cleanup() trap handler is set for
SIGINT and SIGTERM that kills the named container, the tracked
background PID, and any remaining child processes.

Each docker run invocation is assigned a unique --name based
on the script PID (clh-dev-$$) to allow targeted cleanup.
The interactive shell (cmd_shell) is left unwrapped since it
needs foreground terminal I/O.

Signed-off-by: Muminul Islam <muislam@microsoft.com>

2026-04-20 13:49:58 +00:00

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