travis: Switch to docker based builds

This requires to have distro specific install scripts and build.sh
script.

For now ibmswtpm2 is compiled just for native builds (depends on gcc,
compiled natively). libtmps/swtpm could be used.

Signed-off-by: Petr Vorel <pvorel@suse.cz>
Reviewed-by: Bruno Meneguele <bmeneg@redhat.com>(Fedora,CentOS 8(RHEL actually))
[zohar@linux.ibm.com: removed debugging in travis/fedora.sh]
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>

build.sh

@@ -0,0 +1,97 @@
+#!/bin/sh
+# Copyright (c) 2020 Petr Vorel <pvorel@suse.cz>
+
+set -e
+
+CC="${CC:-gcc}"
+CFLAGS="${CFLAGS:--Wformat -Werror=format-security -Werror=implicit-function-declaration -Werror=return-type -fno-common}"
+PREFIX="${PREFIX:-$HOME/ima-evm-utils-install}"
+
+export LD_LIBRARY_PATH="$PREFIX/lib64:$PREFIX/lib:/usr/local/lib64:/usr/local/lib"
+export PATH="$PREFIX/bin:/usr/local/bin:$PATH"
+
+title()
+{
+	echo "===== $1 ====="
+}
+
+log_exit()
+{
+	local ret="${3:-$?}"
+	local log="$1"
+	local msg="$2"
+	local prefix
+
+	echo "=== $log ==="
+	[ $ret -eq 0 ] || prefix="FAIL: "
+	cat $log
+	echo
+	echo "$prefix$msg, see output of $log above"
+	exit $ret
+}
+
+cd `dirname $0`
+
+case "$VARIANT" in
+	i386)
+		echo "32-bit compilation"
+		export CFLAGS="-m32 $CFLAGS" LDFLAGS="-m32 $LDFLAGS"
+		export PKG_CONFIG_LIBDIR=/usr/lib/i386-linux-gnu/pkgconfig
+		;;
+	cross-compile)
+		host="${CC%-gcc}"
+		export CROSS_COMPILE="${host}-"
+		host="--host=$host"
+		echo "cross compilation: $host"
+		echo "CROSS_COMPILE: '$CROSS_COMPILE'"
+		;;
+	*)
+		if [ "$VARIANT" ]; then
+			echo "Wrong VARIANT: '$VARIANT'" >&2
+			exit 1
+		fi
+		echo "native build"
+		;;
+esac
+
+title "compiler version"
+$CC --version
+echo "CFLAGS: '$CFLAGS'"
+echo "LDFLAGS: '$LDFLAGS'"
+echo "PREFIX: '$PREFIX'"
+
+title "configure"
+./autogen.sh
+./configure --prefix=$PREFIX $host || log_exit config.log "configure failed"
+
+title "make"
+make -j$(nproc)
+make install
+
+title "test"
+if [ "$VARIANT" = "cross-compile" ]; then
+	echo "skip make check on cross compilation"
+	exit 0
+fi
+
+ret=0
+VERBOSE=1 make check || ret=$?
+
+title "logs"
+if [ $ret -eq 0 ]; then
+	tail -3 tests/ima_hash.log
+	tail -3 tests/sign_verify.log
+	tail -20 tests/boot_aggregate.log
+	exit 0
+fi
+
+cat tests/test-suite.log
+
+if [ $ret -eq 77 ]; then
+	msg="WARN: some tests skipped"
+	ret=0
+else
+	msg="FAIL: tests exited: $ret"
+fi
+
+log_exit tests/test-suite.log "$msg" $ret