CMakeLists: when gzip is available spiOverJtag .bit and .rbf are compressed before installing

.github/workflows/Test.yml

@@ -52,6 +52,7 @@ jobs:
         sudo apt update -qq
         sudo apt install -y \
           cmake \
+          gzip \
           libftdi1-2 \
           libftdi1-dev \
           libhidapi-hidraw0 \

CMakeLists.txt

@@ -284,12 +284,43 @@ math(EXPR FTDI_VAL "${LIBFTDI_VERSION_MAJOR} * 100 + ${LIBFTDI_VERSION_MINOR}")
 add_definitions(-DFTDI_VERSION=${FTDI_VAL})
 
 install(TARGETS openFPGALoader DESTINATION bin)
-file(GLOB BITS_FILES spiOverJtag/spiOverJtag_*.bit)
-file(GLOB RBF_FILES spiOverJtag/spiOverJtag_*.rbf)
+
 file(GLOB GZ_FILES spiOverJtag/spiOverJtag_*.*.gz)
-install(FILES 
+
+# Compress rbf and bit files present into repository
+# TODO: test compat with Windows and MacOS
+list(INSERT CMAKE_MODULE_PATH 0 ${PROJECT_SOURCE_DIR}/cmake/Modules)
+include(FindGZIP)
+
+if (${CMAKE_SYSTEM_NAME} MATCHES "Linux" AND GZIP_PRG)
+	set(SPIOVERJTAG_DIR "${CMAKE_CURRENT_SOURCE_DIR}/spiOverJtag")
+	file(GLOB BITS_FILES RELATIVE ${SPIOVERJTAG_DIR} spiOverJtag/spiOverJtag_*.bit)
+	file(GLOB RBF_FILES RELATIVE ${SPIOVERJTAG_DIR} spiOverJtag/spiOverJtag_*.rbf)
+
+	STRING(REGEX REPLACE ".bit" ".bit.gz" BIT_GZ_FILES "${BITS_FILES}")
+	STRING(REGEX REPLACE ".rbf" ".rbf.gz" RBF_GZ_FILES "${RBF_FILES}")
+
+	FOREACH(bit ${BITS_FILES} ${RBF_FILES})
+		ADD_CUSTOM_COMMAND(OUTPUT ${bit}.gz
+			COMMAND ${GZIP_PRG} -9 -c ${bit} > ${CMAKE_CURRENT_BINARY_DIR}/${bit}.gz
+			DEPENDS ${SPIOVERJTAG_DIR}/${bit}
+			WORKING_DIRECTORY ${SPIOVERJTAG_DIR}
+			COMMENT "Building ${bit}.gz")
+		list(APPEND GZ_FILES ${CMAKE_CURRENT_BINARY_DIR}/${bit}.gz)
+	ENDFOREACH(bit)
+
+	ADD_CUSTOM_TARGET(bit ALL DEPENDS ${BIT_GZ_FILES} ${RBF_GZ_FILES})
+else()
+	file(GLOB BITS_FILES spiOverJtag/spiOverJtag_*.bit)
+	file(GLOB RBF_FILES spiOverJtag/spiOverJtag_*.rbf)
+	install(FILES
 		${BITS_FILES}
 		${RBF_FILES}
+		DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/openFPGALoader
+	)
+endif()
+
+install(FILES 
 	${GZ_FILES}
 	DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/openFPGALoader
 )

cmake/Modules/FindGZIP.cmake

@@ -0,0 +1,13 @@
+FIND_PROGRAM(GZIP_PRG
+	NAMES gzip
+	PATHS /bin
+		/usr/bin
+		/usr/local/bin
+		${CYGWIN_INSTALL_PATH}/bin
+		${MSYS_INSTALL_PATH}/usr/bin
+)
+
+IF(NOT GZIP_PRG)
+  message("Unable to find 'gzip' program")
+ENDIF(NOT GZIP_PRG)
+

doc/guide/install.rst

@@ -19,7 +19,7 @@ Alternatively, you could build from source. First: install required libraries:
 
 .. code-block:: bash
 
-   sudo pacman -S git cmake make gcc pkgconf libftdi libusb zlib hidapi
+   sudo pacman -S git cmake make gcc pkgconf libftdi libusb zlib hidapi gzip
 
 Build step is similar as Debian
 
@@ -42,6 +42,7 @@ This application uses ``libftdi1``, so this library must be installed (and, depe
 
     sudo apt install \
       git \
+      gzip \
       libftdi1-2 \
       libftdi1-dev \
       libhidapi-hidraw0 \
@@ -156,7 +157,7 @@ Alternatively, if you want to build it by hand:
 .. code-block:: bash
 
     brew install --only-dependencies openfpgaloader
-    brew install cmake pkg-config zlib
+    brew install cmake pkg-config zlib gzip
     git clone https://github.com/trabucayre/openFPGALoader
     cd openFPGALoader
     mkdir build

scripts/msys2/PKGBUILD

@@ -14,6 +14,7 @@ depends=(
 makedepends=(
   "${MINGW_PACKAGE_PREFIX}-cc"
   "${MINGW_PACKAGE_PREFIX}-cmake"
+  "${MINGW_PACKAGE_PREFIX}-gzip"
 )
 
 source=()