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Make bootstrap.sh even smaller

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Kovid Goyal 2022-03-16 07:31:33 +05:30
parent 766010c292
commit 2b8acebd6e
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GPG Key ID: 06BC317B515ACE7C
2 changed files with 47 additions and 40 deletions
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45
shell-integration/ssh/bootstrap-utils.sh
View File

@ -160,3 +160,48 @@ fi' > "$sh_script"
export ENV="$sh_script"
exec "$login_shell"
}
prepare_for_exec() {
if [ -n "$leading_data" ]; then
# clear current line as it might have things echoed on it from leading_data
# because we only turn off echo in this script whereas the leading bytes could
# have been sent before the script had a chance to run
printf "\r\033[K" > /dev/tty
fi
[ -f "$HOME/.terminfo/kitty.terminfo" ] || die "Incomplete extraction of ssh data"
if [ -n "$KITTY_LOGIN_SHELL" ]; then
login_shell="$KITTY_LOGIN_SHELL"
unset KITTY_LOGIN_SHELL
else
using_getent || using_id || using_python || using_perl || using_passwd || using_shell_env || login_shell="sh"
fi
shell_name=$(command basename $login_shell)
[ -n "$login_cwd" ] && cd "$login_cwd"
}
exec_login_shell() {
case "$KITTY_SHELL_INTEGRATION" in
("")
# only blanks or unset
unset KITTY_SHELL_INTEGRATION
;;
(*)
# not blank
printf "%s" "$KITTY_SHELL_INTEGRATION" | command grep '\bno-rc\b' || exec_with_shell_integration
# either no-rc or exec failed
unset KITTY_SHELL_INTEGRATION
;;
esac
# We need to pass the first argument to the executed program with a leading -
# to make sure the shell executes as a login shell. Note that not all shells
# support exec -a so we use the below to try to detect such shells
[ "$(exec -a echo echo OK 2> /dev/null)" = "OK" ] && exec -a "-$shell_name" "$login_shell"
execute_with_python
execute_with_perl
execute_sh_with_posix_env
exec "$login_shell" "-l"
printf "%s\n" "Could not execute the shell $login_shell as a login shell" > /dev/stderr
exec "$login_shell"
}

42
shell-integration/ssh/bootstrap.sh
View File

@ -136,49 +136,11 @@ get_data() {
# ask for the SSH data
get_data
cleanup_on_bootstrap_exit
if [ -n "$leading_data" ]; then
# clear current line as it might have things echoed on it from leading_data
# because we only turn off echo in this script whereas the leading bytes could
# have been sent before the script had a chance to run
printf "\r\033[K" > /dev/tty
fi
[ -f "$HOME/.terminfo/kitty.terminfo" ] || die "Incomplete extraction of ssh data"
if [ -n "$KITTY_LOGIN_SHELL" ]; then
login_shell="$KITTY_LOGIN_SHELL"
unset KITTY_LOGIN_SHELL
else
using_getent || using_id || using_python || using_perl || using_passwd || using_shell_env || login_shell="sh"
fi
shell_name=$(command basename $login_shell)
[ -n "$login_cwd" ] && cd "$login_cwd"
prepare_for_exec
# If a command was passed to SSH execute it here
EXEC_CMD
# Used in the tests
TEST_SCRIPT
case "$KITTY_SHELL_INTEGRATION" in
("")
# only blanks or unset
unset KITTY_SHELL_INTEGRATION
;;
(*)
# not blank
printf "%s" "$KITTY_SHELL_INTEGRATION" | command grep '\bno-rc\b' || exec_with_shell_integration
# either no-rc or exec failed
unset KITTY_SHELL_INTEGRATION
;;
esac
# We need to pass the first argument to the executed program with a leading -
# to make sure the shell executes as a login shell. Note that not all shells
# support exec -a so we use the below to try to detect such shells
[ "$(exec -a echo echo OK 2> /dev/null)" = "OK" ] && exec -a "-$shell_name" "$login_shell"
execute_with_python
execute_with_perl
execute_sh_with_posix_env
exec "$login_shell" "-l"
printf "%s\n" "Could not execute the shell $login_shell as a login shell" > /dev/stderr
exec "$login_shell"
exec_login_shell