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Interactive build: give the terminal back after the debug shell exits #7

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Merged
casparvl merged 1 commit into from
Oct 15, 2026
Merged

Interactive build: give the terminal back after the debug shell exits #7

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6 changes: 6 additions & 0 deletions EESSI-install-software.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -110,6 +110,12 @@ debug_shell() {
echo_yellow ">> Working directory: ${PWD}; exit the shell (Ctrl-D) to continue/finish"
bash --rcfile "${rcfile}" -i < /dev/tty > /dev/tty 2>&1
rm -f "${rcfile}"
# The debug shell has job control, so it made its own process group the terminal's foreground group, and we don't
# get the terminal back reliably when it exits. Without this, Ctrl+C no longer reaches the build afterwards.
# (SIGTTOU is ignored, as changing the foreground group from a background group would otherwise stop us.)
python3 -c 'import os, signal
signal.signal(signal.SIGTTOU, signal.SIG_IGN)
os.tcsetpgrp(os.open("/dev/tty", os.O_RDWR), os.getpgrp())' 2>/dev/null || true
}

# If EESSI_INTERACTIVE_BUILD=onfail, then define a trap so that if an error is encounted that would cause the shell to exit
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