packages/libs/postgresql/files/postgresql.sh
Daniel Golle 63120640e6 postgresql: update to version 9.5.4 and major rework
* convert package build to use host-build for ecpg, pg_config and zic
 * introduce /lib/functions/postgresql.sh to be used by packages
   requiring a postgres database to exist as well as postgres' init
 * no longer require shadow-su, patch pg_ctl to setuid() ifself instead
 * auto-create database directory if there is enough free space
 * auto-create databases configured in UCI
 * remove some dead uci config options
 * grab maintainership

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2016-09-23 20:03:05 +02:00

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