mirror of
https://github.com/yunionio/cloudpods.git
synced 2026-06-20 18:26:05 +08:00
71 lines
1.8 KiB
Go
71 lines
1.8 KiB
Go
// Copyright 2019 Yunion
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//
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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 qemuimg
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import (
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"fmt"
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"regexp"
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"yunion.io/x/log"
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"yunion.io/x/onecloud/pkg/util/procutils"
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"yunion.io/x/onecloud/pkg/util/qemutils"
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"yunion.io/x/onecloud/pkg/util/version"
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)
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const (
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qemuImgVersionPattern = `qemu-img version (?P<ver>\d+\.\d+(\.\d+)?)`
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)
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var (
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qemuImgVersionRegexp = regexp.MustCompile(qemuImgVersionPattern)
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qemuImgVersion string
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)
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func getQemuImgVersion() string {
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out, err := procutils.NewRemoteCommandAsFarAsPossible(qemutils.GetQemuImg(), "--version").Output()
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if err != nil {
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log.Errorf("check qemu-img version fail %s", out)
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return ""
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}
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matches := qemuImgVersionRegexp.FindStringSubmatch(string(out))
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if len(matches) > 1 {
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return matches[1]
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}
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return ""
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}
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func QemuImgInit() error {
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ver := getQemuImgVersion()
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if len(ver) == 0 {
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return fmt.Errorf("fail to find qemu-img")
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}
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qemuImgVersion = ver
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return nil
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}
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func qcow2SparseOptions() []string {
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if version.LE(qemuImgVersion, "1.1") {
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return []string{"preallocation=metadata", "cluster_size=2M"}
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} else if version.LE(qemuImgVersion, "1.7.1") {
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return []string{"preallocation=metadata", "lazy_refcounts=on"}
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} else if version.LE(qemuImgVersion, "2.2") {
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return []string{"preallocation=metadata", "lazy_refcounts=on", "cluster_size=2M"}
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} else {
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return []string{}
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}
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}
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