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|
die() { echo >&2 $"FATAL: $@" ; exit 1 ; }
error() { echo >&2 $"ERROR: $@" ; }
error_q() { echo >&2 $" $@" ; }
warn() { echo >&2 $"WARNING: $@" ; }
warn_q() { echo >&2 $" $@" ; }
info() { echo >&2 $" * $@" ; }
info_q() { echo >&2 $" $@" ; }
debug() { test "$option_debug" = "1" && echo >&2 $"DEBUG: $@"; }
set_var()
{
eval "$1=\"$2\""
}
root_prereq()
{
test "$(id -u)" -eq 0 || die "$0 requires root access for this action"
}
read_config_file()
{
local key="" val=""
test -r "$1" || die "can't read file '$1'"
for i in $2; do
eval "unset __pg_conf_$i"
done
# No easy (and secure) way to read configuration files from bash script,
# sorry.
while read key val; do
[[ $key =~ ^[a-zA-Z_][a-zA-Z0-9_]*$ ]] || return 1
case " $2 " in
*" $key "*)
;;
*)
warn "config file '$1': unknown key '$key'"
continue
;;
esac
# Strip double quotes
case "$val" in
\"*\")
val=${val##\"}
val=${val%%\"}
;;
esac
# Make it reasonably safe. Keep dolar-sign escaped.
eval "__pg_conf_$key=\$val"
done < <(grep -v -e "^$" -e "^#" < "$1")
}
parse_upgrade_setup()
{
local action="$1"
local expected_id="$2"
local id temp_major temp_engine temp_data_default temp_description
local upgrade_confdir="@sysconfdir@/@NAME_BINARYBASE@-setup/upgrade"
debug "using 'upgrade' confdir $upgrade_confdir"
test -d "$upgrade_confdir" || die "can't read confdir $upgrade_confdir"
local my_vars="id comment data_default engine description major scls \
redhat_sockets_hack"
while read conffile
do
read_config_file "$conffile" "$my_vars"
if test help = "$action"; then
echo "$__pg_conf_id - $__pg_conf_description"
elif test list = "$action"; then
echo "$__pg_conf_id $__pg_conf_major"
elif test config = "$action"; then
test "$__pg_conf_id" = "$expected_id" || continue
debug "reading config $conffile"
for i in $my_vars; do
set_var "upgradefrom_$i" "\$__pg_conf_$i"
local cm="config file '$conffile'"
# 'scls' and 'redhat_sockets_hack' are used to adjust
# environment and could be bash-injected.
case "$i" in
scls)
test -z "$upgrade_from_scls" \
|| [[ $upgrade_from_scls =~ ^[-a-zA-Z0-9_\ ]+$ ]] \
|| die "$cm: bad '$i' value '$upgrade_from_scls'"
;;
redhat_sockets_hack)
case "$upgradefrom_redhat_sockets_hack" in
yes|no|'')
;;
*)
die "$cm: bad '$i' value"
;;
esac
;;
esac
done
return 0
fi
done < <(find "$upgrade_confdir" -maxdepth 1 -type f -name '*.conf')
case "$action" in
help|list)
return 0
;;
esac
return 1
}
|
