From b0934960d87d095a67ee2a18665b7e02698373ef Mon Sep 17 00:00:00 2001
From: Jorge Marques <jorge.marques@analog.com>
Date: Tue, 21 Mar 2023 15:18:35 -0300
Subject: [PATCH] github/workflow: creates deb for Ubuntu 22.04

Include files to generate debs, targeting Ubuntu 22.04.
Uses the ENABLE_PACKAGING cmake flag to generate the packages.
Uses dependencies available in the main package manager repositories.
The workflow runs in master, this branch and on published release.
Can also create rpm, but this is not uploaded by the workflow.
Note: Ubuntu libcurl4 flavor is openssl, rpm generated in Ubuntu
will mostly not work with Fedora/OpenSUSE.

Signed-off-by: Jorge Marques <jorge.marques@analog.com>
---
 .github/workflows/build-deb-ubuntu-22.04.yml | 33 ++++++++++++++
 CMakeLists.txt                               | 15 ++++++-
 cmake/LinuxPackaging.cmake                   | 47 ++++++++++++++++++++
 3 files changed, 94 insertions(+), 1 deletion(-)
 create mode 100644 .github/workflows/build-deb-ubuntu-22.04.yml
 create mode 100644 cmake/LinuxPackaging.cmake

diff --git a/.github/workflows/build-deb-ubuntu-22.04.yml b/.github/workflows/build-deb-ubuntu-22.04.yml
new file mode 100644
index 000000000..518bce0f8
--- /dev/null
+++ b/.github/workflows/build-deb-ubuntu-22.04.yml
@@ -0,0 +1,33 @@
+on:
+  push:
+    branches: [master, deb]
+  release:
+    type: [published]
+name: deb build for Ubuntu 22.04
+jobs:
+  build:
+    runs-on: ubuntu-22.04
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+
+    - name: Install dependencies
+      run: sudo apt-get update &&
+           sudo apt-get install -y
+           build-essential cmake git
+           libgtk-3-dev libxml2-dev
+           libcurl4-openssl-dev libad9361-dev
+           libaio-dev libiio-dev libgtkdatabox-dev
+           libjansson-dev libmatio-dev libfftw3-dev
+
+    - name: Generate deb package
+      run: mkdir build && cd $_ &&
+           cmake -DENABLE_PACKAGING=ON .. && make package
+
+    - name: Upload deb package
+      uses: actions/upload-artifact@v3
+      with:
+        name: iio-oscilloscope-Ubuntu22.04.deb
+        path: build/iio-oscilloscope-*-Linux.deb
+        if-no-files-found: error
diff --git a/CMakeLists.txt b/CMakeLists.txt
index baa0b610d..a5df4e6c4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -20,7 +20,7 @@ cmake_minimum_required(VERSION 2.8.7)
 # needed to use VERSION in 'project()'
 cmake_policy(SET CMP0048 NEW)
 set(OSC_VERSION_MAJOR 0)
-set(OSC_VERSION_MINOR 8)
+set(OSC_VERSION_MINOR 15)
 set(OSC_VERSION "${OSC_VERSION_MAJOR}.${OSC_VERSION_MINOR}")
 project(iio-oscilloscope
 	VERSION ${OSC_VERSION}
@@ -33,6 +33,12 @@ endif()
 
 include(GNUInstallDirs)
 
+if(ENABLE_PACKAGING AND ${CMAKE_INSTALL_FULL_LIBDIR} STREQUAL /usr/local/lib)
+       # /usr/local/lib might not be in LD_LIBRAY_PATH
+	   set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_FULL_LIBDIR}")
+       set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
+endif()
+
 # Get the GIT hash of the latest commit
 include(FindGit OPTIONAL)
 if (GIT_FOUND AND EXISTS "${PROJECT_SOURCE_DIR}/.git")
@@ -337,3 +343,10 @@ if(NOT EXISTS "${TARGET_PATH}")
 endif()
 
 add_subdirectory(plugins)
+option(ENABLE_PACKAGING "Create .deb/.rpm/.tar.gz packages via 'make package'" OFF)
+
+if(ENABLE_PACKAGING)
+	if(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
+		include(cmake/LinuxPackaging.cmake)
+	endif()
+endif()
diff --git a/cmake/LinuxPackaging.cmake b/cmake/LinuxPackaging.cmake
new file mode 100644
index 000000000..35167b9d7
--- /dev/null
+++ b/cmake/LinuxPackaging.cmake
@@ -0,0 +1,47 @@
+# support creating some basic binpkgs via `make package`
+set(CPACK_SET_DESTDIR ON)
+set(CPACK_GENERATOR TGZ)
+
+FIND_PROGRAM(RPMBUILD_CMD rpmbuild)
+if (RPMBUILD_CMD)
+	# Check if optional dependency is included
+	if(LIBAD9361_LIBRARIES)
+			set(LIBAD9361_RPM ", libad9361 >= 0.2")
+	endif()
+	if(LIBAD9166_LIBRARIES)
+			set(LIBAD9166_RPM ", libad9166 >= 0.2")
+	endif()
+	# Manual setup of rpm requires, Fedora >= 36 centric
+	set(CPACK_PACKAGE_RELOCATABLE OFF)
+	set(CPACK_GENERATOR ${CPACK_GENERATOR};RPM)
+	set(CPACK_RPM_PACKAGE_REQUIRES "libiio >= 0.23, gtk3 >= 3.24, gtkdatabox >= 1.0.0, jansson >= 2.12, matio >= 1.5.17, fftw >= 3.3.8, curl >= 7.68.0${LIBAD9361_RPM}${LIBAD9166_RPM}")
+	message(STATUS "Package dependencies (.rpm): " ${CPACK_RPM_PACKAGE_REQUIRES})
+endif()
+
+FIND_PROGRAM(DEBBUILD_CMD dpkg)
+if (DEBBUILD_CMD)
+	# Check if optional dependency is included
+	if(LIBAD9361_LIBRARIES)
+			set(LIBAD9361_DEB ", libad9361-0 (>= 0.2) | libad9361 (>= 0.2)")
+	endif()
+	if(LIBAD9166_LIBRARIES)
+			set(LIBAD9166_DEB ", libad9166 (>= 0.2)")
+	endif()
+	set(CPACK_GENERATOR ${CPACK_GENERATOR};DEB)
+
+	set(CPACK_DEBIAN_PACKAGE_DEPENDS "libiio0 (>= 0.23) | libiio (>= 0.23), libgtk-3-0 (>= 3.24.18), libgtkdatabox1 (>= 1.0.0), libjansson4 (>= 2.12), libmatio11 (>= 1.5.21), libfftw3-3 (>= 3.3.8), libcurl4 (>= 7.68.0)${LIBAD9361_DEB}${LIBAD9166_DEB}")
+	message(STATUS "Package dependencies (.deb): " ${CPACK_DEBIAN_PACKAGE_DEPENDS})
+endif()
+
+set(CPACK_INCLUDE_TOPLEVEL_DIRECTORY 0)
+set(CPACK_PACKAGE_VERSION_MAJOR ${OSC_VERSION_MAJOR})
+set(CPACK_PACKAGE_VERSION_MINOR ${OSC_VERSION_MINOR})
+set(CPACK_PACKAGE_VERSION_PATCH ${OSC_VERSION_GIT})
+set(CPACK_BUNDLE_NAME osc)
+set(CPACK_PACKAGE_VERSION ${OSCIO_VERSION})
+if (DEBBUILD_CMD)
+	# debian specific package settings
+	set(CPACK_PACKAGE_CONTACT "Engineerzone <https://ez.analog.com/sw-interface-tools>")
+endif()
+
+include(CPack)