File: enumerate-tests

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#!/bin/bash

set -e

. tests/lib-core
. tests/lib-restricts

mode=$1

test-begin- () {
	whynots=''
}

restriction- () {
	set +e
	whynot=$(t-restriction-${r//,/ })
	rc=$?
	whynot="${whynot//
/ / }"
	set -e
	case "$rc.$whynot" in
	0.)	;;
	1.?*)	whynots="$whynots${whynots:+; }$whynot" ;;
	*)	fail "restriction $r for $t gave $rc $whynot !"
	esac
}

dependencies- () {
	:
}

test-done- () {
	case "$whynots" in
	'')	echo $t ;;
	?*)	echo >&2 "SKIP $t $whynots" ;;
	esac
}

finish- () {
	:
}

test-begin-gencontrol () {
	restrictions=''
	dependencies='dgit, dgit-infrastructure, devscripts, debhelper (>=8), fakeroot, build-essential, chiark-utils-bin, bc, faketime, liburi-perl'
}

gencontrol-add-things () {
	local varname=$1; shift
	local delim=$1; shift
	local thing
	eval '
		for thing in "$@"; do
			case " $'$varname$delim '" in
			*" "$thing"'$delim' "*)	continue ;;
			esac
			'$varname'+="${'$varname':+'$delim' }$thing"
		done
	'
}

restriction-gencontrol () {
	case "$r" in
	x-dgit-out-of-tree-only) return ;;
	# Deliberately don't honour suite restrictions in formal autopkgtests.
	# Test dependencies should handle that as needed.
	x-dgit-skip-suite,*) return ;;
	esac
	gencontrol-add-things restrictions '' "$r"
}

gencontrol-add-deps () {
	gencontrol-add-things dependencies , "$@"
}

dependencies-gencontrol () {
	for dep in "$deps"; do
		case "$dep" in
		NO-DGIT) dependencies='chiark-utils-bin, faketime' ;;
		NO-DEFAULT) dependencies='' ;;
		GDR) gencontrol-add-deps \
			git-debrebase git-buildpackage
			;;
		DEBORIG) gencontrol-add-deps \
			devscripts libdpkg-perl \
			libgit-wrapper-perl liblist-compare-perl \
			libstring-shellquote-perl libtry-tiny-perl \
			# NB git-deborig is not compatible with
			#  t-tstunt-parsechangelog
			;;
		DEBPUSH) gencontrol-add-deps \
			git-debpush
			;;
		T2U) gencontrol-add-deps \
			git-debpush autopkgtest python3-pygit2 netcat-openbsd
			;;
		*) gencontrol-add-deps "$dep" ;;
		esac
	done
}

test-done-gencontrol () {
	stanza=$(
		add_Depends="$dependencies" \
		perl <debian/tests/control.in -wpe '
			if (/^(\w+):/) {
				my $h = $1;
				s{$}{ $ENV{"add_$h"} // "" }e;
			}
		' 
		case "$restrictions" in
		?*) echo "Restrictions: $restrictions" ;;
		esac
		)
	key=$(printf "%s" "$stanza" | sha256sum)
	key=${key%% *}
	eval "
		stanza_$key=\"\$stanza\"
		tests_$key+=\" \${t#tests/tests/}\"
	"
	keys=" ${keys/ $key /}"
	keys+=" $key "
}

finish-gencontrol () {
	for key in $keys; do
		eval "
			stanza=\$stanza_$key
			tests=\$tests_$key
		"
		printf "Tests:%s\n%s\n\n" "$tests" "$stanza"
	done
}

test-begin-dep-packages () {
	test-begin-gencontrol
	test-begin-
}
test-done-dep-packages () {
	test-begin-gencontrol
}
dependencies-dep-packages () {
	dependencies-gencontrol
}
restriction-dep-packages () {
	restriction-
}
test-done-dep-packages () {
	if [ -z "$whynots" ]; then
		all_dependencies+=" $dependencies"
	else
		echo >&2 "skipping $t: $whynot"
	fi
}
finish-dep-packages () {
	perl -e '
		# include every dependency, but without version

		$_ = $ARGV[0];
		s{\([^()]*\)}{}g;
		s{\,}{ }g;
		$y{$_}=1 foreach split /\s+/;

		printf "%s\n", join " ", sort keys %y or die $!;
	' -- "$all_dependencies"
}

seddery () {
	local seddery=$1
	sed <$tf -n '
		20q;
		/^: t-enumerate-tests-end$/q;
		'"$seddery"'
	'
}

allsedderies () {
	local tf=$1
	for r in $(seddery 's/^t-restrict //p'); do
		restriction-$mode
	done
	for deps in $(seddery 's/^t-dependencies //p'); do
		dependencies-$mode
	done
	for import in $(seddery 's/^t-setup-import //p'); do
		allsedderies tests/setup/$import
	done
	if egrep -q '^t-alt-test *$' <$tf; then
		local leaf=${tf#tests/tests/}
		allsedderies tests/tests/"${leaf#*-}"
	fi
}

: ${TESTSCRIPTS=$(run-parts --list tests/tests)}

for t in $TESTSCRIPTS; do
	test-begin-$mode
	allsedderies $t
	test-done-$mode
done

finish-$mode