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###
### common bindings for dbconfig-common
###
### all variables and functions fall under the namespace "dbc_foo" and
### "_dbc_foo", depending on whether or not they are "external"
###
[ "$_dbc_logfile" ] || _dbc_logfile="/var/log/dbconfig-common/dbc.log"
##
## dbc_logpart: log interal messages (without newline)
##
dbc_logpart(){
printf "$* " >&2
printf "$* " >> $_dbc_logfile
}
##
## dbc_logline: log interal messages
##
dbc_logline(){
printf "$*.\n" >&2
printf "$*.\n" >> $_dbc_logfile
}
###
### simple debugging function
###
_dbc_debug(){
if [ "${dbc_debug:-}" ]; then
dbc_logline "$@"
fi
}
##
## internal check for an installed db client package
##
_dbc_detect_installed_dbtype(){
_dbc_debug "_dbc_detect_installed_dbtype() $@"
# see if the dbtype is already installed. this is still not 100% accurate
case "$1" in
mysql)
if ! which mysql >/dev/null; then
return 1
fi
;;
pgsql|psql)
# if postgresql-client-common is installed without postgresql-client-8.x,
# psql --version will exit with an error
if ! which psql >/dev/null 2>&1 || \
! psql --version >/dev/null 2>&1; then
return 1
fi
;;
"sqlite"|"sqlite3")
if ! which $1 >/dev/null 2>&1; then
return 1
fi
;;
*)
dbc_logline "_dbc_detect_installed_dbtype() called for unknown dbtype $@"
return 1
;;
esac
return 0
}
##
## internal sanity check for certain important variables
##
_dbc_sanity_check(){
while [ $# -ne 0 ]; do
case "$1" in
"package")
if [ -z "$dbc_package" ]; then
dbc_error="dbconfig-common can not determine the
name of the package it is configuring."
dbc_logline "sanity check failed for dbc_package"
return 1
fi
;;
"packageconfig")
if [ -z "$dbc_packageconfig" ]; then
dbc_error="dbconfig-common can not determine the
name of the package configuration file."
dbc_logline "sanity check failed for dbc_packageconfig"
return 1
fi
;;
"dbtype")
if [ -z "$dbc_dbtype" ]; then
dbc_error="dbconfig-common can not determine the
database type."
dbc_logline "sanity check failed for dbc_dbtype"
return 1
fi
;;
"command")
if [ -z "$dbc_command" ]; then
dbc_error="dbconfig-common can not determine the
maintainer script running it."
dbc_logline "sanity check failed for dbc_command"
return 1
fi
;;
"dbname")
if [ -z "$dbc_dbname" ]; then
dbc_error="No database name specified. Have
to know the name to create it."
dbc_logline "sanity check failed for dbc_dbname"
return 1
fi
;;
"dbadmin")
if [ -z "$dbc_dbadmin" ]; then
dbc_error="No database administrator specified."
dbc_logline "sanity check failed for dbc_dbadmin"
return 1
fi
;;
"dbuser")
if [ -z "$dbc_dbuser" ]; then
dbc_error="No database user specified."
dbc_logline "sanity check failed for dbc_dbuser"
return 1
fi
;;
"dbpass")
if [ -z "$dbc_dbpass" ]; then
dbc_error="No database password specified."
dbc_logline "sanity check failed for dbc_dbpass"
return 1
fi
;;
"mysql"|"psql"|"sqlite"|"sqlite3")
if ! _dbc_detect_installed_dbtype $1; then
dbc_error="No $1 client to execute. (have
you installed the ${dbc_dbclientpackage:-$1} package?)"
dbc_logline "sanity check failed for $1"
return 1
fi
;;
"createdb")
if ! which createdb >/dev/null; then
dbc_error="No pgsql createdb to execute. (have
you installed postgresql-client?"
dbc_logline "sanity check failed for createdb"
return 1
fi
;;
"dropdb")
if ! which dropdb >/dev/null; then
dbc_error="No pgsql dropdb to execute. (have
you installed postgresql-client?"
dbc_logline "sanity check failed for dropdb"
return 1
fi
;;
"createuser")
if ! which createuser >/dev/null; then
dbc_error="No pgsql createuser to execute. (have
you installed postgresql-client?"
dbc_logline "sanity check failed for createuser"
return 1
fi
;;
"dropuser")
if ! which dropuser >/dev/null; then
dbc_error="No pgsql dropuser to execute. (have
you installed postgresql-client?"
dbc_logline "sanity check failed for dropuser"
return 1
fi
;;
"pg_dump")
if ! which pg_dump >/dev/null; then
dbc_error="No pgsql pg_dump to execute. (have
you installed postgresql-client?"
dbc_logline "sanity check failed for pg_dump"
return 1
fi
;;
"mysqldump")
if ! which mysqldump >/dev/null; then
dbc_error="No mysqldump to execute. (have
you installed mysql-client?"
dbc_logline "sanity check failed for mysqldump"
return 1
fi
;;
*)
dbc_error="don't know how to sanity check for $1"
dbc_logline "don't know how to sanity check for $1"
return 1
;;
esac
shift
done
}
dbc_mktemp(){
local tfile ttemplate
if [ "${1:-}" ]; then
ttemplate="$1";
else
ttemplate="dbconfig-common.XXXXXX";
fi
tfile=`mktemp -t "$ttemplate"`
if [ ! -f "$tfile" ]; then
dbc_error="error creating temporary file"
dbc_logline "error creating temporary file"
return 1
else
echo $tfile
fi
}