Easy RX CLI Install (#87)

* move main and read build info

* set version

* tweaks

* Tweak readme

Author: Richard87

.gitignore

@@ -15,7 +15,7 @@
 /vendor/*
 debug
 radix-cli
-rx
-rx-test
+/rx
+/rx-test
 .idea/
 .dccache

.goreleaser.yml

@@ -3,6 +3,8 @@
 builds:
   - id: rx
     binary: rx
+    main: ./cli/rx
+
     env:
       - CGO_ENABLED=0
     goos:

Dockerfile

@@ -18,7 +18,7 @@ COPY . /app
 RUN addgroup -S -g 1000 radix && adduser -S -u 1000 -G radix radix
 
 # Build
-RUN CGO_ENABLED=0 GOOS=linux go build -ldflags "-s -w" -a -installsuffix cgo -o ./rootfs/rx
+RUN CGO_ENABLED=0 GOOS=linux go build -ldflags "-s -w" -a -installsuffix cgo -o ./rootfs/rx ./cli/rx
 
 ## Run operator
 FROM scratch

README.md

@@ -6,6 +6,11 @@ Radix CLI in the [Radix documentation](https://radix.equinor.com/docs/topic-radi
 
 ## Installation
 
+### If using Go:
+```sh
+go install github.com/equinor/radix-cli/cli/rx@latest
+```
+
 ### Linux or Mac
 
 #### Binaries
@@ -166,7 +171,7 @@ We are making releases available as GitHub releases using [go-releaser](https://
 To generate a local version for debugging purposes, it can be built using:
 
 ```
-CGO_ENABLED=0 GOOS=darwin go build -ldflags "-s -w" -a -installsuffix cgo -o ./rx
+CGO_ENABLED=0 GOOS=darwin go build -ldflags "-s -w" -a -installsuffix cgo -o ./rx ./cli/rx
 ```
 
 ### Security

main.go cli/rx/main.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"runtime/debug"
 	"strings"
 	"time"
 
@@ -38,6 +39,15 @@ func Execute() {
 	}
 }
 
+func init() {
+	if Version == "dev" {
+		if info, ok := debug.ReadBuildInfo(); ok {
+			Version = info.Main.Version
+			rootCmd.Version = info.Main.Version
+		}
+	}
+}
+
 func setVerbosePersistentFlag(cmd *cobra.Command) *bool {
 	return cmd.PersistentFlags().Bool(flagnames.Verbose, false, "Verbose output")
 }