package cmd

import (
	"strings"

	"istio.io/istio/istioctl/pkg/analyze"
	"istio.io/istio/istioctl/pkg/util"
)

// Values should try to use sendmail-style values as in <sysexits.h>
// See e.g. https://man.openbsd.org/sysexits.3
// or `less /usr/includes/sysexits.h` if you're on Linux
//
// Picking the right range is tricky--there are a lot of reserved ones (see

// The expected cgroup format is "hierarchy-ID:controller-list:cgroup-path", and
// this function will return an error if every cgroup does not meet that format.
//
// For more information, see:
//   - http://man7.org/linux/man-pages/man7/cgroups.7.html
//   - https://www.kernel.org/doc/Documentation/cgroup-v2.txt
func GetCgroups(procCgroupData bytes.Buffer) ([]Cgroup, error) {
	reader := bytes.NewReader(procCgroupData.Bytes())
	var cgroups []Cgroup