Split functional testings via github action matrix

This commit changes the workflow of the github actions.

We split the workflow into different parts:

1) build zfs modules for Ubuntu 20.04 and 22.04 (~25m)
2) 2x zloop test (~10m) + 2x sanity test (~25m)
3) functional testings in parts 1..5 (each ~1h)
4) cleanup and create summary
   - content of summary depends on the results of the steps

When everything runs fine, the full testrun should be done in
about 2 hours.

The codeql.yml and checkstyle.yml are not part in this circle.

The testings are also modfied a bit:
- report info about CPU and checksum benchmarks

Open things that are not done yet (TODO List):
- create nice summary in the end
- create external shell script for building + testing
- this should simplify the yaml build file

Signed-off-by: Tino Reichardt <milky-zfs@mcmilk.de>

.github/workflows/README.md

@@ -0,0 +1,51 @@
+
+## The testings are done this way
+
+```mermaid
+flowchart TB
+subgraph CleanUp and Summary
+  Part1-20.04-->CleanUp+nice+Summary
+  Part2-20.04-->CleanUp+nice+Summary
+  PartN-20.04-->CleanUp+nice+Summary
+  Part1-22.04-->CleanUp+nice+Summary
+  Part2-22.04-->CleanUp+nice+Summary
+  PartN-22.04-->CleanUp+nice+Summary
+end
+
+subgraph Functional Testings
+  functional-testing-20.04-->Part1-20.04
+  functional-testing-20.04-->Part2-20.04
+  functional-testing-20.04-->PartN-20.04
+  functional-testing-22.04-->Part1-22.04
+  functional-testing-22.04-->Part2-22.04
+  functional-testing-22.04-->PartN-22.04
+end
+
+subgraph Sanity and zloop Testings
+  sanity-checks-20.04-->functional-testing-20.04
+  sanity-checks-22.04-->functional-testing-22.04
+  zloop-checks-20.04-->functional-testing-20.04
+  zloop-checks-22.04-->functional-testing-22.04
+end
+
+subgraph Code Checking + Building
+  codeql.yml
+  checkstyle.yml
+  Build-Ubuntu-20.04-->sanity-checks-20.04
+  Build-Ubuntu-22.04-->sanity-checks-22.04
+  Build-Ubuntu-20.04-->zloop-checks-20.04
+  Build-Ubuntu-22.04-->zloop-checks-22.04
+end
+```
+
+
+1) build zfs modules for Ubuntu 20.04 and 22.04 (~15m)
+2) 2x zloop test (~10m) + 2x sanity test (~25m)
+3) functional testings in parts 1..5 (each ~1h)
+4) cleanup and create summary
+   - content of summary depends on the results of the steps
+
+When everything runs fine, the full run should be done in
+about 2 hours.
+
+The codeql.yml and checkstyle.yml are not part in this circle.

.github/workflows/build-dependencies.txt

@@ -1,57 +1,31 @@
-acl
 alien
-attr
 autoconf
-bc
+automake
 build-essential
 curl
 dbench
 debhelper-compat
 dh-python
 dkms
 fakeroot
-fio
-gdb
-gdebi
+gawk
 git
-ksh
-lcov
-libacl1-dev
 libaio-dev
 libattr1-dev
 libblkid-dev
 libcurl4-openssl-dev
-libdevmapper-dev
 libelf-dev
 libffi-dev
-libmount-dev
 libpam0g-dev
-libselinux1-dev
 libssl-dev
 libtool
 libudev-dev
-linux-headers-generic
-lsscsi
-mdadm
-nfs-kernel-server
-pamtester
-parted
-po-debconf
 python3
 python3-all-dev
 python3-cffi
 python3-dev
 python3-packaging
-python3-pip
 python3-setuptools
 python3-sphinx
-rng-tools-debian
-rsync
-samba
-sysstat
 uuid-dev
-watchdog
-wget
-xfslibs-dev
-xz-utils
 zlib1g-dev

.github/workflows/scripts/split_functional_tests.sh

@@ -0,0 +1,25 @@
+#!/bin/sh
+
+set -eu
+
+TDIR="/usr/share/zfs/zfs-tests/tests/functional"
+
+echo -n "TODO="
+case "$1" in
+  part1)
+    echo "cli_root"
+  ;;
+  part2)
+    ls $TDIR|grep '^[a-k]'|grep -v "cli_root"|xargs|tr -s ' ' ','
+  ;;
+  part3)
+    ls $TDIR|grep '^[l-q]'|xargs|tr -s ' ' ','
+  ;;
+  part4)
+    ls $TDIR|grep '^r[aeo]'|xargs|tr -s ' ' ','
+  ;;
+  part5)
+    echo -n "rsend,"
+    ls $TDIR|grep '^[s-z]'|xargs|tr -s ' ' ','
+  ;;
+esac

.github/workflows/test-dependencies.txt

@@ -0,0 +1,23 @@
+acl
+attr
+bc
+bzip2
+dbench
+fio
+gdb
+ksh
+libtool
+lsscsi
+mdadm
+nfs-kernel-server
+parted
+pax
+python3-cffi
+python3-sphinx
+pv
+quota
+rng-tools
+samba
+selinux-utils
+sysstat
+util-linux