CI: NPROC calculation fix for unlimited Docker containers (#1015)

* CI: NPROC calculation fix

Handle cases where memory.max contains the string "max"
instead of a number. This might be the case with Docker
containers over BM sometimes.

Signed-off-by: Alexey Rivkin <[email protected]>

* Fix to POSIX-compatible

Signed-off-by: Alexey Rivkin <[email protected]>

---------

Signed-off-by: Alexey Rivkin <[email protected]>

Author: Alexey-Rivkin

.ci/scripts/common.sh

@@ -103,6 +103,7 @@ if [ -z "$NPROC" ]; then
             limit=$(cat /sys/fs/cgroup/memory/memory.limit_in_bytes)
         elif [ -f /sys/fs/cgroup/memory.max ]; then
             limit=$(cat /sys/fs/cgroup/memory.max)
+            [ "$limit" = "max" ] && limit=$((4 * 1024 * 1024 * 1024))
         else
             limit=$((4 * 1024 * 1024 * 1024))
         fi