lbplatformutils 4.1.0

utilities from platform detection

This is a project started to coordinate between LHCb Core Software and LHCbDirac platform compatibility information.

It follows up on discussions in

• LHCBDIRAC-158: Fixing “Platforms” and “SystemConfig” parameters

• LBCORE-1227: Enable -m sse4.2 in gcc6.2 opt compilation

• LBCORE-1228: Provide a CMTCONFIG build with -m avx2

• LHCBDIRAC-626: dirac-pilot and CPU architecture

• LBCORE-1247: extend lb-run to understand the special platform “best”

OS Id Derivation

The OS Id (os_id) is a short string used to identify the Operating System (e.g. Linux flavour, MacOS, Windows…) and its version, usually in the format <name><version>.

On Linux, the OS Id is computed from different possible sources:

• file /etc/os-release [1]

  • the name is extracted from the field ID, up the first (optional) -

  • the version is extracted from the field VERSION_ID

    • if ID or ID_LIKE contain rhel or suse we keep only up to the first .

    • otherwise we remove all occurrences of .

    • if VERSION_ID is not present and the name is debian we set the version to testing

• file /etc/redhat-release

  • the name is

    • slc if it contains CERN

    • sl if it contains Scientific Linux

    • centos if it contains CentOS

    • rhel if it contains Red Hat Enterprise Linux

  • the version is the number after the word release, up to the first .

• file /etc/lsb-release

  • the name is extracted from the field DISTRIB_ID, up the first (optional) -, and made lowercase

  • the version is extracted from the field DISTRIB_RELEASE removing all occurrences of .

[1]

https://www.freedesktop.org/software/systemd/man/os-release.html