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Use grouped tmux sessions for independent window navigation #21

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Use grouped tmux sessions for independent window navigation #21

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56d3654
Use grouped tmux sessions for independent window navigation (#20)
flipbit03 Mar 20, 2026
1afef20
Fix grouped tmux session creation by splitting into separate commands
flipbit03 Mar 27, 2026
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14 changes: 13 additions & 1 deletion forestui/cli.py
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Original file line number Diff line number Diff line change
Expand Up @@ -111,7 +111,19 @@ def ensure_tmux(
],
)

os.execvp("tmux", ["tmux", "attach-session", "-t", session_name])
# Create a grouped session for independent window navigation.
# Each terminal gets its own session linked to the same window group,
# so switching windows in one terminal doesn't affect the other.
grouped_name = f"{session_name}-{os.getpid()}"
subprocess.run(
["tmux", "new-session", "-d", "-s", grouped_name, "-t", session_name],
capture_output=True,
)
subprocess.run(
["tmux", "set-option", "-t", grouped_name, "destroy-unattached", "on"],
capture_output=True,
)
os.execvp("tmux", ["tmux", "attach-session", "-t", grouped_name])
else:
# No session: create new one with forestui as initial command
os.execvp("tmux", ["tmux", "new-session", "-s", session_name, forestui_cmd])
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