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build.go
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build.go
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// Copyright (c) 2017 The Jaeger Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package version
import (
"fmt"
"github.com/jaegertracing/jaeger/pkg/metrics"
)
var (
// commitFromGit is a constant representing the source version that
// generated this build. It should be set during build via -ldflags.
commitSHA string
// versionFromGit is a constant representing the version tag that
// generated this build. It should be set during build via -ldflags.
latestVersion string
// build date in ISO8601 format, output of $(date -u +'%Y-%m-%dT%H:%M:%SZ')
date string
)
// Info holds build information.
type Info struct {
GitCommit string `json:"gitCommit"`
GitVersion string `json:"gitVersion"`
BuildDate string `json:"buildDate"`
}
// InfoMetrics hold a gauge whose tags include build information.
type InfoMetrics struct {
BuildInfo metrics.Gauge `metric:"build_info"`
}
// Get creates and initialized Info object
func Get() Info {
return Info{
GitCommit: commitSHA,
GitVersion: latestVersion,
BuildDate: date,
}
}
// NewInfoMetrics returns a InfoMetrics
func NewInfoMetrics(metricsFactory metrics.Factory) *InfoMetrics {
var info InfoMetrics
buildTags := map[string]string{
"revision": commitSHA,
"version": latestVersion,
"build_date": date,
}
metrics.Init(&info, metricsFactory, buildTags)
info.BuildInfo.Update(1)
return &info
}
func (i Info) String() string {
return fmt.Sprintf(
"git-commit=%s, git-version=%s, build-date=%s",
i.GitCommit, i.GitVersion, i.BuildDate,
)
}