#!/bin/sh
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PSQL="/usr/bin/psql"
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free_megs() {
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fsdir=$1
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while [ ! -d "$fsdir" ]; do
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fsdir=$(dirname $fsdir)
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done
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df -m $fsdir | while read fs bl us av cap mnt; do [ "$av" = "Available" ] || echo $av; done
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}
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pg_init_data() {
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# make sure we got at least 50MB of free space
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[ $(free_megs $1) -lt 50 ] && return 1
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pg_ctl initdb -U postgres -D $1
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}
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pg_server_ready() {
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t=0
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while [ $t -le 90 ]; do
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pg_ctl status -U postgres -D $1 2>/dev/null >/dev/null && return 0
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t=$((t+1))
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sleep 1
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done
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return 1
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}
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pg_test_db() {
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if [ "$3" ]; then
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echo "SHOW ALL;" | env PGPASSWORD="$3" $PSQL -U "$2" -d "$1" -q 2>/dev/null >/dev/null
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return $?
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else
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echo "SHOW ALL;" | $PSQL -w -U "$2" -d "$1" -q 2>/dev/null >/dev/null
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return $?
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fi
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}
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pg_include_sql() {
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if [ "$3" ]; then
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env PGPASSWORD="$3" $PSQL -U "$2" -d "$1" -e -f "$4"
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return $?
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else
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$PSQL -w -U "$2" -d "$1" -e -f "$4"
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return $?
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fi
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}
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# $1: dbname, $2: username, $3: password, $4: sql populate script
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pg_require_db() {
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local ret
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pg_test_db $@ && return 0
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( echo "CREATE DATABASE $1;"
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echo -n "CREATE USER $2"
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[ "$3" ] && echo -n " WITH PASSWORD '$3'"
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echo " NOCREATEDB NOSUPERUSER NOCREATEROLE NOINHERIT;"
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echo "GRANT ALL PRIVILEGES ON DATABASE \"$1\" TO $2;" ) |
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$PSQL -U postgres -d template1 -e
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ret=$?
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[ "$ret" = "0" ] || return $ret
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if [ "$4" ]; then
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pg_include_sql "$@"
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ret=$?
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fi
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return $ret
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}
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uci_require_db() {
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local dbname dbuser dbpass dbscript
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config_get dbname $1 name
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config_get dbuser $1 user
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config_get dbpass $1 pass
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config_get dbscript $1 script
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pg_require_db "$dbname" "$dbuser" "$dbpass" "$dbscript"
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}
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[ "$1" = "init" ] && {
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. /lib/functions.sh
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pg_server_ready $2 || exit 1
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config_load postgresql
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config_foreach uci_require_db postgres-db
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}
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