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|
intersection()
{
comm -12 "$@"
}
difference()
{
comm -23 "$@"
}
extract_words()
{
grep -o -E '\b\w+\b' | sort -u
}
immediate_dependencies1()
{
intersection \
<(compgen -A function | sort -u) \
<(declare -f "$1" | extract_words)
}
immediate_dependencies()
{
for f
do
immediate_dependencies1 "$f"
done | sort -u
}
recursive_dependencies()
{
seen=()
while [ $# -gt 0 ]
do
seen+=("$@")
set -- $(difference <(immediate_dependencies "$@") \
<(printf '%s\n' "${seen[@]}" | sort -u))
done
printf '%s\n' "${seen[@]}"
}
# Input: $BASH_RPC_REMOTE_DEST - hostname passed to ssh (uses ssh host aliases)
# Input: $BASH_RPC_SSH_OPTIONS - option arguments passed to ssh (they precede '--')
# Input: $1 - bash shell script source code to run remotely
# Input: $2, $3, ... - command line arguments passed to the remote bash shell
# Input: stdin, stdout, stderr: passed to ssh
bash_rpc_remote_run_script()
{
(
local script="$1"
shift
set -- "$SHELL" -c "${script@Q}" "$0" "${@@Q}"
set -x
exec ssh \
"${BASH_RPC_SSH_OPTIONS[@]}" \
-- \
"${BASH_RPC_REMOTE_DEST:-localhost}" \
"$@"
)
}
# Preserves the rest of stdin for the command.
bash_rpc_eval_stdin()
{
[ "$1" -gt 0 ] || return
read -N"$1" -r || return
shift # prepare "$@" for script execution context
source <(printf '%s' "$REPLY" | tr -d '\015')
}
remote_run_function_simple()
{
script_source=$(declare -f "$1" && printf '"$@";\n')
bash_rpc_remote_run_script "$script_source" "$@"
}
remote_run_function()
{
main=$1
funcs=$(recursive_dependencies "$main")
stage2_source=$(
declare -f $funcs
printf '"$@"\n' "$main"
)
BASH_RPC_SSH_OPTIONS=(-tt)
{
printf '%s' "$stage2_source"
if [ -t 0 ]
then
socat stdio PTY
else
cat
fi
} | remote_run_function_simple bash_rpc_eval_stdin "${#stage2_source}" "$@"
}
|
