build_multipy.py: add the build instructions for Linux

devtools/deploy/multipy/build_multipy.py

@@ -88,6 +88,60 @@ class WindowsMake:
         return pack_prc
 
 
+class LinuxMake:
+    PLATFORM = "linux"
+    ARCH = "x86_64"
+    CC = "gcc"
+    CXX = "g++"
+    MPLBACKEND = "Agg"
+    QTCMake_DIR = "/usr/local/Qt6/6.2.3/gcc_64/lib/cmake"
+    NPROC = 8
+    PY_PLATFORM_BASE = "/home/build/multipython/Python"
+    # supported Python platforms: 3.9, 3.8, 3.10, 3.11
+    SUPPORTED_PY_VERSIONS = ("39", "38", "310", "311")
+
+    def _setenv():
+        ENV["CC"] = LinuxMake.CC
+        ENV["CXX"] = LinuxMake.CXX
+        ENV["MPLBACKEND"] = LinuxMake.MPLBACKEND
+
+    def configure(dirs:BuildDirs):
+        """
+        Configure the build with a given source and build directory
+        and a given Python platform
+        """
+        LinuxMake._setenv()
+        conf_prc = subp.run(
+            ["cmake",
+             "-DCMAKE_PREFIX_PATH=" + LinuxMake.QTCMake_DIR,
+             "-DZERO_TOLERANCE=ON",
+             "-DBA_PY_PACKAGE=ON",
+             "-DDEVELOPER_CHECKS=ON",
+             "-DBA_PY_PLATFORM=" + dirs.python,
+             "-B", dirs.build, "-S", dirs.source])
+
+        return conf_prc
+
+    def build(dirs:BuildDirs):
+        """ Build in the given build directory """
+        build_prc = subp.run(["cmake", "--build", dirs.build, "--config Release",
+                              "--parallel %i" % LinuxMake.NPROC])
+        return build_prc
+
+    def test(dirs:BuildDirs):
+        """ Perform tests """
+        os.chdir(dirs.build)
+        test_prc = subp.run(["ctest", "-C", "Release", "--parallel %i" % LinuxMake.NPROC,
+                             "--output-on-failure"])
+        return test_prc
+
+    def pack(dirs:BuildDirs):
+        """ Build package """
+        subp.run(["bash", dirs.build + "/var/mk_pypack_linux.sh"])
+        pack_prc = subp.run(["cpack", dirs.build, "-B " + dirs.package])
+        return pack_prc
+
+
 def make(maker, source_dir, python_version):
     """ Make for the given version of Python """
     print("#--- DIAGNOSTICS ---")