Fix Appveyor CI to use NUT libmodbus fork

appveyor.yml

@@ -23,7 +23,7 @@ platform: x64
 # https://www.appveyor.com/docs/build-cache/
 environment:
   APPVEYOR_SAVE_CACHE_ON_ERROR: true
-  APPVEYOR_CACHE_ENTRY_ZIP_ARGS: -t7z -m0=lzma -mx=9
+  APPVEYOR_CACHE_ENTRY_ZIP_ARGS: -t7z -m0=lzma -mx=6
   CCACHE_DIR: /home/appveyor/.ccache
 
 # https://github.com/networkupstools/nut/blob/Windows-v2.8.0-1/docs/config-prereqs.txt#L951
@@ -47,7 +47,8 @@ install:
         C:\msys64\usr\bin\bash -lc "date -u; pacman --noconfirm -Syuu"
   - cmd: |
         REM Prerequisites for NUT per https://github.com/networkupstools/nut/blob/master/docs/config-prereqs.txt :
-        C:\msys64\usr\bin\bash -lc "date -u; pacman --noconfirm -S --needed base-devel mingw-w64-x86_64-toolchain autoconf-wrapper automake-wrapper libtool mingw-w64-x86_64-libltdl gcc ccache mingw-w64-x86_64-ccache git aspell aspell-en python mingw-w64-x86_64-python-pygments mingw-w64-x86_64-winpthreads-git mingw-w64-x86_64-libusb mingw-w64-x86_64-libusb-compat-git mingw-w64-x86_64-neon libneon-devel mingw-w64-x86_64-libmodbus-git mingw-w64-x86_64-libgd mingw-w64-x86_64-cppunit"
+        C:\msys64\usr\bin\bash -lc "date -u; pacman --noconfirm -S --needed base-devel mingw-w64-x86_64-toolchain autoconf-wrapper automake-wrapper libtool mingw-w64-x86_64-libltdl gcc ccache mingw-w64-x86_64-ccache git aspell aspell-en python mingw-w64-x86_64-python-pygments mingw-w64-x86_64-winpthreads-git mingw-w64-x86_64-libusb mingw-w64-x86_64-libusb-compat-git mingw-w64-x86_64-neon libneon-devel mingw-w64-x86_64-libgd mingw-w64-x86_64-cppunit"
+        REM SKIP mingw-w64-x86_64-libmodbus-git : we custom-build one with USB support
   - cmd: |
         REM Assorted stats after package processing:
         C:\msys64\usr\bin\bash -lc "date -u; ls -la / ; du -ksx / ; date -u; du -ks /var/cache/pacman/pkg; date -u"
@@ -68,7 +69,7 @@ before_build:
       set CHERE_INVOKING=yes
       REM Start a 64 bit Mingw environment:
       set MSYSTEM=MINGW64
-      C:\msys64\usr\bin\bash -lc "date -u; export MSYS2_PATH ; bash ./scripts/Windows/build-mingw-prereqs.sh"
+      C:\msys64\usr\bin\bash -lc 'date -u; export MSYS2_PATH ; PATH="/mingw64/lib/ccache/bin:/mingw64/bin:$PATH" bash ./scripts/Windows/build-mingw-prereqs.sh'
 
 
 build_script:
@@ -77,7 +78,7 @@ build_script:
         set CHERE_INVOKING=yes
         REM Start a 64 bit Mingw environment:
         set MSYSTEM=MINGW64
-        C:\msys64\usr\bin\bash -lc 'date -u; PATH="/mingw64/bin:$PATH" CI_SKIP_CHECK=true ./ci_build.sh'
+        C:\msys64\usr\bin\bash -lc 'date -u; PATH="/mingw64/bin:$PATH" CI_SKIP_CHECK=true CANBUILD_WITH_LIBMODBUS_USB=yes ./ci_build.sh'
 
 
 after_build:
@@ -96,9 +97,9 @@ test_script:
         REM Start a 64 bit Mingw environment:
         set MSYSTEM=MINGW64
         REM Start Mingw-based integration and unit checks:
-        C:\msys64\usr\bin\bash -lc 'date -u; NUT_STATEPATH="C:\\Users\\appveyor\\AppData\\Local\\Temp\\nut-test"; mkdir -p "${NUT_STATEPATH}"; export NUT_STATEPATH; PATH="/mingw64/bin:$PATH" make -s check || bash -lc "for F in tests/*.log tests/*.trs ; do echo \"===---=== $F :\"; cat \"$F\"; done; exit 1;" '
-        REM Start a Mingw-based documentation spellcheck:
-        C:\msys64\usr\bin\bash -lc 'date -u; PATH="/mingw64/bin:$PATH" make -s -j 4 spellcheck'
+        C:\msys64\usr\bin\bash -lc 'date -u; NUT_STATEPATH="C:\\Users\\appveyor\\AppData\\Local\\Temp\\nut-test"; mkdir -p "${NUT_STATEPATH}"; export NUT_STATEPATH; PATH="/mingw64/lib/ccache/bin:/mingw64/bin:$PATH" make -s check || bash -lc "for F in tests/*.log tests/*.trs ; do echo \"===---=== $F :\"; cat \"$F\"; done; exit 1;" '
+        REM Start a Mingw-based documentation spellcheck (note that "make check" above could cover some documents in path of artifact delivery, but maybe not all that we have):
+        C:\msys64\usr\bin\bash -lc 'date -u; PATH="/mingw64/lib/ccache/bin:/mingw64/bin:$PATH" make -s -j 8 spellcheck'
 
 
 after_test:
@@ -109,7 +110,7 @@ after_test:
         set MSYSTEM=MINGW64
         REM Oh the joys of shell scripting with strings passed through CMD:
         REM Note: currently Python installation path with MSYS is buggy [#1584]
-        C:\msys64\usr\bin\bash -lc 'date -u; if ! rm -rf ".inst" ; then echo "WARNING: Failed to clean away .inst" ; fi ; PATH="/mingw64/bin:$PATH" make -s install-win-bundle DESTDIR="`pwd`/.inst/NUT-for-Windows-x86_64-SNAPSHOT-%APPVEYOR_BUILD_VERSION%" ; ln -fs "NUT-for-Windows-x86_64-SNAPSHOT-%APPVEYOR_BUILD_VERSION%" ./.inst/NUT-for-Windows-x86_64-SNAPSHOT ; ( cd .inst/NUT-for-Windows-x86_64-SNAPSHOT ; find . -ls ; )'
+        C:\msys64\usr\bin\bash -lc 'date -u; set -e ; if ! rm -rf ".inst" ; then echo "WARNING: Failed to clean away .inst" ; fi ; PATH="/mingw64/lib/ccache/bin:/mingw64/bin:$PATH" make -s install-win-bundle DESTDIR="`pwd`/.inst/NUT-for-Windows-x86_64-SNAPSHOT-%APPVEYOR_BUILD_VERSION%" ; ln -fs "NUT-for-Windows-x86_64-SNAPSHOT-%APPVEYOR_BUILD_VERSION%" ./.inst/NUT-for-Windows-x86_64-SNAPSHOT ; ( cd .inst/NUT-for-Windows-x86_64-SNAPSHOT ; find . -ls ; ) ; date -u'
         cd .inst
         7z a ../NUT-for-Windows-x86_64-SNAPSHOT-%APPVEYOR_BUILD_VERSION%.7z NUT*
   - cmd: |

ci_build.sh

@@ -1203,6 +1203,12 @@ default|default-alldrv|default-alldrv:no-distcheck|default-all-errors|default-sp
     CONFIG_OPTS+=("--with-nut_monitor=force")
     CONFIG_OPTS+=("--with-pynut=auto")
 
+    # Primarily here to ensure libusb-1.0 use on MSYS2/mingw
+    # when 0.1 is available too
+    if [ "${CANBUILD_WITH_LIBMODBUS_USB-}" = yes ] ; then
+        CONFIG_OPTS+=("--with-modbus+usb=yes")
+    fi
+
     # Similarly for nut-scanner which requires libltdl which
     # is not ubiquitous on CI workers. So unless agent labels
     # declare it should be capable, err on the safe side:
@@ -1532,7 +1538,7 @@ default|default-alldrv|default-alldrv:no-distcheck|default-all-errors|default-sp
     # below depending on scenario
     autogen_get_CONFIGURE_SCRIPT
 
-    if [ "$NO_PKG_CONFIG" == "true" ] && [ "$CI_OS_NAME" = "linux" ] && (command -v dpkg) ; then
+    if [ "$NO_PKG_CONFIG" = "true" ] && [ "$CI_OS_NAME" = "linux" ] && (command -v dpkg) ; then
         # This should be done in scratch containers...
         echo "NO_PKG_CONFIG==true : BUTCHER pkg-config package for this test case" >&2
         sudo dpkg -r --force all pkg-config
@@ -2059,7 +2065,7 @@ default|default-alldrv|default-alldrv:no-distcheck|default-all-errors|default-sp
     [ -n "$CI_TIME" ] && echo "`date`: listing files installed into the custom DESTDIR..." && \
         find "$INST_PREFIX" -ls || true
 
-    if [ "$DO_DISTCHECK" == "no" ] ; then
+    if [ "$DO_DISTCHECK" = "no" ] ; then
         echo "Skipping distcheck (doc generation is disabled, it would fail)"
     else
         [ -z "$CI_TIME" ] || echo "`date`: Starting distcheck of currently tested project..."
@@ -2132,6 +2138,12 @@ bindings)
         --disable-force-nut-version-header \
         --enable-check-NIT --enable-maintainer-mode)
 
+    # Primarily here to ensure libusb-1.0 use on MSYS2/mingw
+    # when 0.1 is available too
+    if [ "${CANBUILD_WITH_LIBMODBUS_USB-}" = yes ] ; then
+        CONFIG_OPTS+=("--with-modbus+usb=yes")
+    fi
+
     # Not default for parameter-less build, to prevent "make check-NIT"
     # from somehow interfering with the running daemons.
     if [ x"${INPLACE_RUNTIME-}" = xtrue ] || [ x"${BUILD_TYPE-}" = xinplace ] ; then

configure.ac

@@ -2462,6 +2462,7 @@ AS_IF([test "${nut_with_modbus}" != "no"], [
 	dnl detection method (if nut_have_libmodbus_usb=="yes")
 	NUT_REPORT_DRV([build Modbus drivers with RTU USB support], [${nut_have_libmodbus_usb}])
 ])
+AM_CONDITIONAL(WITH_MODBUS_USB, [test "${nut_with_modbus}" = "yes" && test "${nut_have_libmodbus_usb}" = yes && test "${nut_with_usb}" = yes && test "${nut_with_modbus_and_usb}" != "no"])
 
 dnl ----------------------------------------------------------------------
 dnl Check for with-ipmi, and --with-freeipmi (or --with-openipmi)

drivers/Makefile.am

@@ -338,7 +338,7 @@ adelsystem_cbi_LDADD = $(LDADD_DRIVERS) $(LIBMODBUS_LIBS)
 # for USB connections. Legacy versions work for Serial and TCP links.
 apc_modbus_SOURCES = apc_modbus.c
 apc_modbus_LDADD = $(LDADD_DRIVERS) $(LIBMODBUS_LIBS)
-if WITH_USB
+if WITH_MODBUS_USB
   apc_modbus_SOURCES += $(LIBUSB_IMPL) hidparser.c usb-common.c
   apc_modbus_LDADD += $(LIBUSB_LIBS)
 endif

m4/nut_check_libmodbus.m4

@@ -73,9 +73,33 @@ if test -z "${nut_have_libmodbus_seen}"; then
 	CFLAGS="${CFLAGS_ORIG} ${depCFLAGS}"
 	LIBS="${LIBS_ORIG} ${depLIBS}"
 	AC_CHECK_HEADERS(modbus.h, [nut_have_libmodbus=yes], [nut_have_libmodbus=no], [AC_INCLUDES_DEFAULT])
+	AS_IF([test x"${nut_have_libmodbus}" = xyes ], [
+		AC_CHECK_FUNCS(modbus_new_tcp, [], [
+			nut_have_libmodbus=no
+			AC_REQUIRE([NUT_CHECK_SOCKETLIB])
+			AS_IF([test x"${NETLIBS-}" != x], [
+				AC_MSG_NOTICE([Retry detection of libmodbus TCP support with NETLIBS])
+				unset ac_cv_func_modbus_new_tcp
+				LIBS="${LIBS} ${NETLIBS}"
+				AC_CHECK_FUNCS(modbus_new_tcp, [
+					nut_have_libmodbus=yes
+					depLIBS="${depLIBS} ${NETLIBS}"
+				], [
+					AS_IF([test x"${NETLIBS_GETADDRS-}" != x], [
+						AC_MSG_NOTICE([Retry detection of libmodbus TCP support with NETLIBS and NETLIBS_GETADDRS])
+						unset ac_cv_func_modbus_new_tcp
+						LIBS="${LIBS} ${NETLIBS_GETADDRS}"
+						AC_CHECK_FUNCS(modbus_new_tcp, [
+							nut_have_libmodbus=yes
+							depLIBS="${depLIBS} ${NETLIBS} ${NETLIBS_GETADDRS}"
+						], [nut_have_libmodbus=no])
+					])
+				])
+			])
+		])
+	])
 	AS_IF([test x"${nut_have_libmodbus}" = xyes ], [
 		AC_CHECK_FUNCS(modbus_new_rtu, [], [nut_have_libmodbus=no])
-		AC_CHECK_FUNCS(modbus_new_tcp, [], [nut_have_libmodbus=no])
 		AC_CHECK_FUNCS(modbus_set_byte_timeout, [], [nut_have_libmodbus=no])
 		AC_CHECK_FUNCS(modbus_set_response_timeout, [], [nut_have_libmodbus=no])
 	])
@@ -88,12 +112,21 @@ if test -z "${nut_have_libmodbus_seen}"; then
 				dnl know we are not opposed to pulling it in.
 				dnl Static libmodbus builds do not refer to
 				dnl (shared) libusb for example.
+				dnl NOTE: Currently libusb-1.0 is required by
+				dnl libmodbus with rtu_usb additions. By our
+				dnl default, mingw/MSYS2 native builds prefer
+				dnl libusb-0.1(-compat) over libusb-1.0 if
+				dnl both are available - see nut_check_libusb.m4
 				AC_REQUIRE([NUT_CHECK_LIBUSB])
-				AC_MSG_NOTICE([Retry detection of libmodbus USB support])
+				AC_MSG_NOTICE([Retry detection of libmodbus USB support (may require libusb-1.0 specifically)])
 				CFLAGS="$CFLAGS $LIBUSB_CFLAGS"
 				LIBS="$LIBS $LIBUSB_LIBS"
 				unset ac_cv_func_modbus_new_rtu_usb
-				AC_CHECK_FUNCS(modbus_new_rtu_usb, [nut_have_libmodbus_usb=yes], [
+				AC_CHECK_FUNCS(modbus_new_rtu_usb, [
+					nut_have_libmodbus_usb=yes
+					depCFLAGS="${depCFLAGS} ${LIBUSB_CFLAGS}"
+					depLIBS="${depLIBS} ${LIBUSB_LIBS}"
+				], [
 					AS_IF([test x"${nut_with_usb}" = xyes && test x"${nut_with_modbus}" = xyes && test x"${nut_have_libmodbus}" = xyes ], [
 						AC_MSG_WARN([Both --with-modbus and --with-usb were requested, and a libmodbus was found, but it seems to not support USB. You may require a custom build per https://github.com/networkupstools/nut/wiki/APC-UPS-with-Modbus-protocol])
 					])

m4/nut_check_libusb.m4

@@ -86,14 +86,20 @@ if test -z "${nut_have_libusb_seen}"; then
 		 nut_usb_lib="(libusb-1.0)"
 		 dnl ...except on Windows, where we support libusb-0.1(-compat)
 		 dnl better so far (allow manual specification though, to let
-		 dnl someone finally develop the on-par support):
+		 dnl someone finally develop the on-par support), see also
+		 dnl https://github.com/networkupstools/nut/issues/1507
+		 dnl Note this may upset detection of libmodbus RTU USB support.
 		 AS_IF([test x"${LIBUSB_0_1_VERSION}" != xnone], [
 			AS_CASE(["${target_os}"],
 				[*mingw*], [
 					AS_IF([test x"$build" = x"$host"], [
-						AC_MSG_NOTICE([mingw/MSYS2 native builds prefer libusb-0.1(-compat) over libusb-1.0 if both are available])
-						LIBUSB_VERSION="${LIBUSB_0_1_VERSION}"
-						nut_usb_lib="(libusb-0.1)"
+						AS_IF([test "${nut_with_modbus_and_usb}" = "yes"], [
+							AC_MSG_NOTICE(["Normally" mingw/MSYS2 native builds prefer libusb-0.1(-compat) over libusb-1.0 if both are available, but you requested --with-modbus+usb so preferring libusb-1.0 in this build])
+						], [
+							AC_MSG_NOTICE([mingw/MSYS2 native builds prefer libusb-0.1(-compat) over libusb-1.0 if both are available until https://github.com/networkupstools/nut/issues/1507 is solved])
+							LIBUSB_VERSION="${LIBUSB_0_1_VERSION}"
+							nut_usb_lib="(libusb-0.1)"
+						])
 						],[
 						AC_MSG_NOTICE([mingw cross-builds prefer libusb-1.0 over libusb-0.1(-compat) if both are available])
 						])