EESSI bash initialization to module file

init/modules/EESSI/2023.06.lua

@@ -0,0 +1,55 @@
+help([[
+Description
+===========
+The European Environment for Scientific Software Installations (EESSI, pronounced as easy) is a collaboration between different European partners in HPC community.The goal of this project is to build a common stack of scientific software installations for HPC systems and beyond, including laptops, personal workstations and cloud infrastructure. 
+
+More information
+================
+ - URL: https://www.eessi.io/docs/
+]])
+whatis("Description: The European Environment for Scientific Software Installations (EESSI, pronounced as easy) is a collaboration between different European partners in HPC community. The goal of this project is to build a common stack of scientific software installations for HPC systems and beyond, including laptops, personal workstations and cloud infrastructure.")
+whatis("URL: https://www.eessi.io/docs/:")
+
+local eessi_version = myModuleVersion()
+local eessi_repo = "/cvmfs/software.eessi.io"
+local eessi_prefix = pathJoin(eessi_repo, "versions", eessi_version)
+local eessi_os_type = "linux"
+setenv("EESSI_VERSION", eessi_version)
+setenv("EESSI_CVMFS_REPO", eessi_repo)
+setenv("EESSI_OS_TYPE", eessi_os_type)
+function archdetect_cpu()
+    local script = pathJoin(eessi_repo, 'versions', eessi_version, 'init', 'lmod_eessi_archdetect_wrapper.sh')
+    if not os.getenv("EESSI_ARCHDETECT_OPTIONS") then
+        if convertToCanonical(LmodVersion()) < convertToCanonical("8.6") then
+            LmodMessage("Loading this modulefile requires using Lmod version > 8.6, but you can export EESSI_ARCHDETECT_OPTIONS to the available cpu architecture in the form of: x86_64/intel/haswell or aarch64/neoverse_v1")
+            os.exit(1)
+        end
+        source_sh("bash", script)
+    end
+    for archdetect_filter_cpu in string.gmatch(os.getenv("EESSI_ARCHDETECT_OPTIONS"), "([^" .. ":" .. "]+)") do
+        if isDir(pathJoin(string.gsub(script, "init/lmod_eessi_archdetect_wrapper.sh", "software/" .. eessi_os_type), archdetect_filter_cpu)) then
+            return archdetect_filter_cpu
+        end
+    end
+    LmodError("Software directory check for the detected architecture failed")
+end
+local archdetect = archdetect_cpu()
+local eessi_cpu_family = archdetect:match("([^/]+)")
+local eessi_software_subdir = os.getenv("EESSI_SOFTWARE_SUBDIR_OVERRIDE") or archdetect
+local eessi_eprefix = pathJoin(eessi_prefix, "compat", eessi_os_type, eessi_cpu_family)
+local eessi_software_path = pathJoin(eessi_prefix, "software", eessi_os_type, eessi_software_subdir)
+local eessi_module_path = pathJoin(eessi_software_path, "modules/all")
+setenv("EESSI_SITE_MODULEPATH", string.gsub(eessi_module_path, eessi_repo, "host_injections"))
+setenv("EESSI_SOFTWARE_SUBDIR", eessi_software_subdir)
+setenv("EESSI_PREFIX", eessi_prefix)
+setenv("EESSI_EPREFIX", eessi_eprefix)
+prepend_path("PATH", pathJoin(eessi_eprefix, "bin"))
+prepend_path("PATH", pathJoin(eessi_eprefix, "usr/bin"))
+setenv("EESSI_SOFTWARE_PATH", eessi_software_path)
+setenv("EESSI_MODULEPATH", eessi_module_path)
+prepend_path("MODULEPATH", os.getenv("EESSI_SITE_MODULEPATH") .. ":" .. os.getenv("EESSI_MODULEPATH"))
+setenv("LMOD_CONFIG_DIR", pathJoin(eessi_software_path, ".lmod"))
+setenv("LMOD_PACKAGE_PATH", pathJoin(eessi_software_path, ".lmod"))
+if mode() == "load" then
+    LmodMessage("EESSI/" .. eessi_version .. " loaded successfully")
+end