Follow-up to #209 and #210. Both land a real fix (a pane that is a login shell
picks up /etc/profile and the per-user PATH entries an ssh remote command never
sees, which is what was failing agent CLIs with exit 127). Three corrections:
1. `-i -l` is no longer hardcoded onto the resolved shell. That path ultimately
comes from the passwd entry, which is user data and can name anything, and a
shell that rejects an unknown flag exits on the spot: nushell, elvish and xonsh
take neither flag, so a user with one of those in passwd would have gotten a
dead pane on arrival, which is exactly the #208 failure #209 builds on top of.
loginShellArgs() applies them only to the POSIX-family shells verified to
accept both, and a test really launches every allowlisted shell present on the
machine rather than trusting the set. csh/tcsh are excluded deliberately: tcsh
honors -l only when it is the ONLY flag.
2. `remain-on-exit on` -> `failed`, moved LAST in the tmux command chain. `on`
keeps the pane after a CLEAN exit too, so typing `exit` in a remote shell
stranded a dead pane, the session outlived it, and the next launch's `-A`
reattached to that corpse: "Pane is dead (status 0)" instead of a shell,
permanently, on the DEFAULT path. Verified against a real tmux, as was the
fix: `failed` tears the session down on status 0 and keeps the pane on 127
with the "command not found" still on screen, which is the case #210 wanted.
It is last because tmux aborts the remaining commands of a `\;` sequence once
one errors (also verified) and `failed` needs tmux >= 3.2 on the REMOTE host;
leading, a rejection there would have silently dropped status/mouse/prefix/
escape-time/window-size along with it.
3. `$SHELL` -> `"${SHELL:-/bin/sh}"`, via one shared remoteLoginShellCommand()
helper instead of the string being rebuilt in tmux-manager as well.
Also corrects the rationale both PRs carried: a tmux pane already hands the shell
a tty, so it was interactive all along ($- contains i for a bare /bin/bash in a
pane) and ~/.bashrc was always being sourced. `-l` is the flag doing the work.
End-to-end verified, not just unit-tested: the emitted remote pane command was
run through all three quoting layers under a minimal sshd-style PATH with the
CLI installed only on a login-shell PATH entry, and it resolved and launched the
CLI with its arguments intact and a space-containing remote path preserved.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Codeman maintainer
2b89f35599