#!/bin/sh
#
# check masqmail config files for options that are obsolete
# -v enables verbose output
#
# 2010  markus schnalke <meillo@marmaro.de>

if [ $# -eq 0 ] ; then
	echo "usage: config-transition [-v] CONFIGFILE..." >&2
	exit 1
fi

awkscript="/tmp/masqmail-config-transition-$$"

trap 'rm -f "$awkscript"; exit' INT QUIT TERM EXIT

cat >"$awkscript" <<!
# Because of the Here-document, escape (with backslash) these characters:
# backslash, dollar, backtick
BEGIN {

########  START OF CHECKS  ########

# Rules look like this:
#
# check["regexp"] = "conf-kind" SUBSEP "version-info" SUBSEP "verbose-description"
#
# Meaning of the strings:
# - regexp: is also used as the name in the normal listing
# - conf-kind: in which kind of config the option appears (conf, route, get)
# - version-info: when it was removed
# - verbose-description: how to do it now


# conf file

check["remote_port"] = "conf" SUBSEP "Removed in 0.3.0" SUBSEP "\
Use 'mail_host' in the route configuration instead. \
"

check["mbox_default.*maildir"] = "conf" SUBSEP "Removed in 0.3.0" SUBSEP "\
Native maildir support was removed completely. \
Use an MDA, e.g. procmail, to deliver to Maildir mail folder. \
"

check["maildir_users"] = "conf" SUBSEP "Removed in 0.3.0" SUBSEP "\
Native maildir support was removed completely. \
Use an MDA, e.g. procmail, to deliver to Maildir mail folder. \
"

check["mserver_iface"] = "conf" SUBSEP "Removed in 0.3.0" SUBSEP "\
Native mserver support was removed from masqmail. \
Use the mservdetect tool with online_detect=pipe instead. \
"

check["get\\\\."] = "conf" SUBSEP "Removed in 0.3.0" SUBSEP "\
The POP3 client was removed from masqmail. \
Use a dedicated POP3 client, e.g. fetchmail, instead. \
"

check["online_gets\\\\."] = "conf" SUBSEP "Removed in 0.3.0" SUBSEP "\
The POP3 client was removed from masqmail. \
Use a dedicated POP3 client, e.g. fetchmail, instead. \
"

check["alias_local_caseless"] = "conf" SUBSEP "Renamed in 0.3.1" SUBSEP "\
It is now called 'caseless_matching' instead. \
"

# route files

check["pop3_login"] = "route" SUBSEP "Removed in 0.3.0" SUBSEP "\
POP-before-SMTP login function was removed completely. \
SMTP AUTH supersedes it today. \
If you though rely on it, stay with masqmail-0.2.x or run an arbitrary POP client before. \
"

check["do_ssl"] = "route" SUBSEP "Ignored by masqmail" SUBSEP "\
Please report to the mailing list at <masqmail@marmaro.de> that you used this option. \
We still don't know the rationale behind this option. \
All we have is a comment in the code saying: This option is used by sqilconf. \
"

# get files

# already covered by the get.* and online_gets.* options in the conf
# file. This check is just to make sure, because one might only check
# the get file.
# We don't check for the other get file options, which are:
# protocol server port wrapper user pass address return_path do_keep
# do_uidl do_uidl_dele max_size max_size_delete max_count resolve_list

check["protocol.*pop"] = "get" SUBSEP "Removed in 0.3.0" SUBSEP "\
The POP3 client was removed from masqmail. \
Use a dedicated POP3 client, e.g. fetchmail, instead. \
"


########  END OF CHECK DEFINITIONS  ########
}

function checkcomment() {
	if (/^[ \t]*\#/) {
		return " (in a comment)"
	}
}

{
	for (key in check) {
		if (\$0 !~ key) {
			continue;
		}
		# we have a match
		split(check[key], a, SUBSEP);  # array index starts with 1
		printf("%s:%d: [%s] %s%s\n", FILENAME, NR, a[1], key, checkcomment());
		cmd = "fold -sw 70 | sed 's,^,\t,'"
		if (verbose) {
			print "\t>>>> " \$0 " <<<<"
			print a[3] | cmd
			close(cmd)
			print "\t" a[2]
			print ""
		}
	}
}
			
!


verbose=0
if [ X"$1" = X"-v" ] ; then
	verbose=1
	shift
fi

for i do
	awk -f "$awkscript" "verbose=$verbose" "$i"
done