mirror of
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63 lines
1.5 KiB
Go
63 lines
1.5 KiB
Go
/*
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Copyright The BuildKit Authors.
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Copyright The containerd 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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package version
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import (
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"regexp"
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"sync"
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)
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const (
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defaultVersion = "0.0.0+unknown"
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)
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var (
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// Package is filled at linking time
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Package = "github.com/moby/buildkit"
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// Version holds the complete version number. Filled in at linking time.
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Version = defaultVersion
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// Revision is filled with the VCS (e.g. git) revision being used to build
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// the program at linking time.
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Revision = ""
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)
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var (
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reRelease *regexp.Regexp
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reDev *regexp.Regexp
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reOnce sync.Once
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)
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func UserAgent() string {
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uaVersion := defaultVersion
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reOnce.Do(func() {
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reRelease = regexp.MustCompile(`^(v[0-9]+\.[0-9]+)\.[0-9]+$`)
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reDev = regexp.MustCompile(`^(v[0-9]+\.[0-9]+)\.[0-9]+`)
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})
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if matches := reRelease.FindAllStringSubmatch(Version, 1); len(matches) > 0 {
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uaVersion = matches[0][1]
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} else if matches := reDev.FindAllStringSubmatch(Version, 1); len(matches) > 0 {
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uaVersion = matches[0][1] + "-dev"
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}
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return "buildkit/" + uaVersion
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}
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