Emitting version metrics also adding a githook that runs a script the automatically updates the version unless the user manually skips

.githooks/commit-msg

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+TEMPORARY_FILE_PATH=$1
+
+COMMIT_MSG=`head -n1 $TEMPORARY_FILE_PATH`
+
+if [[ $COMMIT_MSG =~ "SKIP VERSION" ]]; then 
+    echo "Skipping version update or already updated"
+    exit 0
+fi
+
+echo "Updating Version"
+
+./scripts/update-version.sh
+
+git add common/metrics/version.go
+
+echo "Commit again with the words SKIP VERSION in the commit message"
+
+exit 1

CONTRIBUTING.md

@@ -235,6 +235,10 @@ You have a few options for choosing when to submit:
 
 ### Commit Messages And Titles of Pull Requests
 
+We use githooks to enforce versions and some commit messages. Please run: `git config core.hooksPath .githooks
+`. When committing the githook will automatically run a script to update an internal version number
+that we. In order to skip include the string `SKIP VERSION` in your message. i.e `some message SKIP VERSION`.
+
 Overcommit adds some requirements to your commit messages. At Uber, we follow the
 [Chris Beams](http://chris.beams.io/posts/git-commit/) guide to writing git
 commit messages. Read it, follow it, learn it, love it.

common/metrics/runtime.go

@@ -52,6 +52,8 @@ var (
 
 	// goVersion is the current runtime version.
 	goVersion = runtime.Version()
+	// cadenceVersion is the current version of cadence
+	cadenceVersion = VersionString
 )
 
 const (
@@ -99,11 +101,12 @@ func NewRuntimeMetricsReporter(
 	}
 	rReporter.buildInfoScope = scope.Tagged(
 		map[string]string{
-			revisionTag:     Revision,
-			branchTag:       Branch,
-			buildDateTag:    BuildDate,
-			buildVersionTag: ReleaseVersion,
-			goVersionTag:    goVersion,
+			revisionTag:       Revision,
+			branchTag:         Branch,
+			buildDateTag:      BuildDate,
+			buildVersionTag:   ReleaseVersion,
+			goVersionTag:      goVersion,
+			cadenceVersionTag: cadenceVersion,
 		},
 	)
 	sec, err := strconv.ParseInt(BuildTimeUnix, base, bitSize)

common/metrics/tags.go

@@ -25,11 +25,12 @@ import (
 )
 
 const (
-	revisionTag     = "revision"
-	branchTag       = "branch"
-	buildDateTag    = "build_date"
-	buildVersionTag = "build_version"
-	goVersionTag    = "go_version"
+	revisionTag       = "revision"
+	branchTag         = "branch"
+	buildDateTag      = "build_date"
+	buildVersionTag   = "build_version"
+	goVersionTag      = "go_version"
+	cadenceVersionTag = "cadence_version"
 
 	instance               = "instance"
 	domain                 = "domain"

common/metrics/version.go

@@ -0,0 +1,28 @@
+// The MIT License (MIT)
+
+// Copyright (c) 2017-2020 Uber Technologies Inc.
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+package metrics
+
+const MajorVersion = "0.25"
+
+// VersionString this is updated via scripts/update-version.sh
+const VersionString = "0.25.1667344608"

scripts/update-version.sh

@@ -0,0 +1,9 @@
+#!/bin/bash -e
+cd "$(dirname $0)"
+
+majorVersion="$(grep MajorVersion ../common/metrics/version.go | awk '{print $4}' | sed 's/"//g')"
+versionString="$majorVersion.$(date +%s)"
+
+goLiteral="const VersionString = \"$versionString\""
+
+sed -i "" "s/^const VersionString = \".*\"$/$goLiteral/" ../common/metrics/version.go