email/aiaiai-email-dispatcher-helper

#!/bin/sh -efu

# Copyright 2011-2012 Intel Corporation
# Author: Artem Bityutskiy
# License: GPLv2

srcdir="$(readlink -ev -- ${0%/*})"
PATH="$srcdir:$srcdir/..:$srcdir/../helpers:$srcdir/../helpers/libshell:$PATH"

. shell-error
. shell-signal
. aiaiai-sh-functions
. aiaiai-email-sh-functions

PROG="${0##*/}"
message_time="yes"

# This is a small trick to make sure the script is portable - check if 'dash'
# is present, and if yes - use it.
if can_switch_to_dash; then
	exec dash -euf -- "$srcdir/$PROG" "$@"
	exit $?
fi

show_usage()
{
	cat <<-EOF
Usage: $PROG [options] <mbox> <fail_file> <queuedir> <cfgfile.ini>

This is a helper program which runs the aiaiai-email-test-patchset program for
the <mbox> file. If aiaiai-email-test-patchset returns success - just exit.
Otherwise it moves the <mbox> file back to the <queuedir> directory and create
file <fail_file>.

aiaiai-email-test-patchset will return failure only in case of internal bug or
error, and not if any test on the patch <mbox> failed. So the reason we move
<mbox> back to the queue is to make sure we do not lose the patch in case of an
internal bug.

<mbox>             - the mbox file to feed to aiaiai-email-test-patchset
<fail_file>        - the file to create in case of failure
<queuedir>         - the directory containing the queue of patches
<cfgfile.ini>      - aiaiai-email-test-patchset's configuration

Options:
  -v, --verbose      be verbose;
  -h, --help         show this text and exit.
EOF
}

fail_usage()
{
	[ -z "$1" ] || printf "%s\n" "$1"
	show_usage
	exit 1
}

tmpdir=
cleanup_handler()
{
	rm $verbose -rf -- "$tmpdir" >&2
}
set_cleanup_handler cleanup_handler

TEMP=`getopt -n $PROG -o v,h --long verbose,help -- "$@"` ||
	fail_usage ""
eval set -- "$TEMP"

verbose=

while true; do
	case "$1" in
	-v|--verbose) verbose=-v
		;;
	-h|--help)
		show_usage
		exit 0
		;;
	--) shift; break
                ;;
	*) fail_usage "Unrecognized option: $1"
		;;
	esac
	shift
done

[ "$#" -eq 4 ] || fail_usage "Insufficient or too many arguments"

mbox="$(readlink -fv -- "$1")"; shift
fail_file="$1"; shift
queuedir="$(readlink -fv -- "$1")"; shift
cfgfile="$1"; shift

# Parse the configuration file
parse_config "$cfgfile"

tmpdir="$(mktemp -dt "$PROG.XXXX")"

verbose "Validating \"$mbox\", queue directory is: $queuedir"
verbose "Configuration file: $cfgfile"

mv $verbose -- "$mbox" "$tmpdir" >&2
file="$tmpdir/${mbox##*/}"

if ! cat -- "$file" | aiaiai-email-test-patchset "$verbose" "$cfgfile"; then
	verbose "Validation failed"
	touch -- "$fail_file"
	mv $verbose -- "$file" "$queuedir" >&2
	exit 1
fi

verbose "Validated successfully"