mirror of
https://github.com/ceph/ceph-csi.git
synced 2025-03-09 08:59:30 +00:00
f87d06ed85
Several packages are only used while running the e2e suite. These packages are less important to update, as the they can not influence the final executable that is part of the Ceph-CSI container-image. By moving these dependencies out of the main Ceph-CSI go.mod, it is easier to identify if a reported CVE affects Ceph-CSI, or only the testing (like most of the Kubernetes CVEs). Signed-off-by: Niels de Vos <ndevos@ibm.com>
90 lines
2.3 KiB
Go
90 lines
2.3 KiB
Go
// Copyright 2019 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package procfs
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import (
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"bufio"
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"bytes"
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"fmt"
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"strconv"
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"strings"
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"github.com/prometheus/procfs/internal/util"
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)
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// Swap represents an entry in /proc/swaps.
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type Swap struct {
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Filename string
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Type string
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Size int
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Used int
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Priority int
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}
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// Swaps returns a slice of all configured swap devices on the system.
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func (fs FS) Swaps() ([]*Swap, error) {
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data, err := util.ReadFileNoStat(fs.proc.Path("swaps"))
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if err != nil {
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return nil, err
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}
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return parseSwaps(data)
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}
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func parseSwaps(info []byte) ([]*Swap, error) {
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swaps := []*Swap{}
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scanner := bufio.NewScanner(bytes.NewReader(info))
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scanner.Scan() // ignore header line
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for scanner.Scan() {
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swapString := scanner.Text()
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parsedSwap, err := parseSwapString(swapString)
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if err != nil {
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return nil, err
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}
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swaps = append(swaps, parsedSwap)
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}
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err := scanner.Err()
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return swaps, err
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}
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func parseSwapString(swapString string) (*Swap, error) {
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var err error
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swapFields := strings.Fields(swapString)
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swapLength := len(swapFields)
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if swapLength < 5 {
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return nil, fmt.Errorf("%w: too few fields in swap string: %s", ErrFileParse, swapString)
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}
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swap := &Swap{
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Filename: swapFields[0],
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Type: swapFields[1],
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}
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swap.Size, err = strconv.Atoi(swapFields[2])
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if err != nil {
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return nil, fmt.Errorf("%w: invalid swap size: %s: %w", ErrFileParse, swapFields[2], err)
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}
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swap.Used, err = strconv.Atoi(swapFields[3])
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if err != nil {
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return nil, fmt.Errorf("%w: invalid swap used: %s: %w", ErrFileParse, swapFields[3], err)
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}
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swap.Priority, err = strconv.Atoi(swapFields[4])
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if err != nil {
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return nil, fmt.Errorf("%w: invalid swap priority: %s: %w", ErrFileParse, swapFields[4], err)
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}
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return swap, nil
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}
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