mirror of
https://github.com/kanaka/mal.git
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494792abe4
- move each file to a schema namespace. Don't recreate DB, just the schemas. This is much faster and avoids the error about user still using the DB when recreating the DB. - combine RUN and MAIN_LOOP into MAIN routine. - add open column to streams table - close stream 1 in MAIN
76 lines
2.2 KiB
Bash
Executable File
76 lines
2.2 KiB
Bash
Executable File
#!/bin/bash
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RL_HISTORY_FILE=${HOME}/.mal-history
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SKIP_INIT="${SKIP_INIT:-}"
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PSQL_USER="${PSQL_USER:-postgres}"
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PSQL="psql -q -t -A -v ON_ERROR_STOP=1 ${PSQL_USER:+-U ${PSQL_USER}}"
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[ "${DEBUG}" ] || PSQL="${PSQL} -v VERBOSITY=terse"
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# If mal DB is not there, force create of it
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dbcheck=$(${PSQL} -c "select 1 from pg_database where datname='mal'")
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[ -z "${dbcheck}" ] && SKIP_INIT=
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STDOUT_PID= STDIN_PID=
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cleanup () {
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trap - TERM QUIT INT EXIT
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# Make sure input stream is closed. Input subprocess will do this
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# for normal terminal input but in the runtest.py case it does not
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# get a chance.
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${PSQL} -dmal -c "SELECT io.close(0);" > /dev/null
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[ "${STDIN_PID}" ] && kill ${STDIN_PID} 2>/dev/null
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}
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# Load the SQL code
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trap "cleanup" TERM QUIT INT EXIT
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${PSQL} -tc "SELECT 1 FROM pg_database WHERE datname = 'mal'" \
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| grep -q 1 || ${PSQL} -c "CREATE DATABASE mal"
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#[ "${SKIP_INIT}" ] || ${PSQL} -dmal -f $1 > /dev/null
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[ "${SKIP_INIT}" ] || ${PSQL} -dmal -f $1
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${PSQL} -dmal -c "SELECT io.open(0); SELECT io.open(1);" > /dev/null
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# Stream from table to stdout
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(
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while true; do
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out="$(${PSQL} -dmal -c "SELECT io.read_or_error(1)" 2>/dev/null)" || break
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echo "${out}"
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done
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) &
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STDOUT_PID=$!
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# Perform readline input into stream table when requested
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(
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[ -r ${RL_HISTORY_FILE} ] && history -r ${RL_HISTORY_FILE}
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while true; do
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prompt=$(${PSQL} -dmal \
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-c "SELECT io.wait_rl_prompt(0);" 2>/dev/null) || break
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IFS= read -u 0 -r -e -p "${prompt}" line || break
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if [ "${line}" ]; then
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history -s -- "${line}" # add to history
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history -a ${RL_HISTORY_FILE} # save history to file
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fi
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${PSQL} -dmal -v arg="${line}" \
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-f <(echo "SELECT io.writeline(:'arg', 0);") >/dev/null || break
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done
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${PSQL} -dmal -c "SELECT io.close(0);" > /dev/null
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) <&0 >&1 &
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STDIN_PID=$!
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res=0
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shift
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if [ $# -gt 0 ]; then
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# If there are command line arguments then run a command and exit
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args=$(for a in "$@"; do echo -n "\"$a\" "; done)
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${PSQL} -dmal -v args="(${args})" \
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-f <(echo "SELECT mal.MAIN('$(pwd)', :'args');") > /dev/null
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res=$?
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else
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# Start main loop in the background
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${PSQL} -dmal -c "SELECT mal.MAIN('$(pwd)');" > /dev/null
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res=$?
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fi
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wait ${STDOUT_PID}
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exit ${res}
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