Add version at build time

.goreleaser.yaml

@@ -5,7 +5,10 @@ before:
     # You may remove this if you don't use go modules.
     - go mod tidy
 builds:
-  - env:
+  - id: carbonifer
+    ldflags:
+      - "-s -w -X main.version={{.Version}}"
+    env:
       - CGO_ENABLED=0
     goos:
       - linux

Makefile

@@ -1,4 +1,7 @@
 APP_NAME = $(shell basename $(shell pwd))
+VERSION := $(shell git describe --tags)
+
+.PHONY: all
 
 dependencies:
 	@echo "Downloading dependencies..."
@@ -14,7 +17,26 @@ test:
 
 build:
 	@echo "Building..."
-	@go build -o bin/$(APP_NAME)
+	go build -ldflags "-X main.Version=${VERSION}" -o bin/$(APP_NAME)
+
+# Example make tag TAG=v0.0.1
+tag:
+	@echo "Tagging..."
+	@if [ "$(TAG)" == "" ]; then \
+        echo "Please set the tag name. For example: make tag TAG=v1.0.0"; \
+        exit 1;\
+    fi
+	git tag -as $(TAG) -m "$(TAG) ($(shell date -u '+%Y-%m-%d %H:%M:%S')))"
+	git push upstream $(TAG)
+
+untag:
+	@echo "Untagging..."
+	@if [ "$(TAG)" == "" ]; then \
+        echo "Please set the tag name. For example: make tag TAG=v1.0.0"; \
+        exit 1;\
+    fi
+	git tag -d $(TAG)
+	git push upstream :refs/tags/$(TAG)
 
 
 all: dependencies lint test build

main.go

@@ -17,6 +17,9 @@ package main
 
 import "github.com/carboniferio/carbonifer/cmd"
 
+var version = "dev"
+
 func main() {
+	cmd.RootCmd.Version = version
 	cmd.Execute()
 }