From 5c587cb725a4957bb97e4482f5efb3f172454a59 Mon Sep 17 00:00:00 2001
From: Tyler Yahn <tyler.yahn@urbanairship.com>
Date: Mon, 15 May 2017 15:30:43 -0700
Subject: [PATCH] Add CLI flag to return version info
Fixes wrouesnel/postgres_exporter#67.
---
postgres_exporter.go | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/postgres_exporter.go b/postgres_exporter.go
index e7970332..cc166dde 100644
--- a/postgres_exporter.go
+++ b/postgres_exporter.go
@@ -11,6 +11,7 @@ import (
"net/url"
"os"
"regexp"
+ "runtime"
"strconv"
"sync"
"time"
@@ -23,6 +24,7 @@ import (
"github.com/prometheus/common/log"
)
+// executable version (set at build time by make)
var Version string = "0.0.1"
var db *sql.DB = nil
@@ -44,6 +46,7 @@ var (
"dumpmaps", false,
"Do not run, simply dump the maps.",
)
+ showVersion = flag.Bool("version", false, "print version")
)
// Metric name parts.
@@ -967,6 +970,14 @@ func (e *Exporter) scrape(ch chan<- prometheus.Metric) {
func main() {
flag.Parse()
+ if *showVersion {
+ fmt.Printf(
+ "postgres_exporter %s (built with %s)\n",
+ Version, runtime.Version(),
+ )
+ return
+ }
+
if *onlyDumpMaps {
dumpMaps()
return