Feat/more version info (#224)

CMakeLists.txt

@@ -28,7 +28,7 @@ add_custom_target(coordinator ALL
 #
 
 add_custom_target(cli ALL
-  CGO_ENABLED=0 go build -o ${CMAKE_BINARY_DIR}/constellation -buildvcs=false -tags=gcp -ldflags "-buildid='' -X github.com/edgelesssys/constellation/internal/constants.VersionInfo=${PROJECT_VERSION}"
+  CGO_ENABLED=0 go build -o ${CMAKE_BINARY_DIR}/constellation -tags=gcp -ldflags "-buildid='' -X github.com/edgelesssys/constellation/internal/constants.VersionInfo=${PROJECT_VERSION}"
   WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/cli
   BYPRODUCTS constellation
 )

cli/internal/cmd/version.go

@@ -1,6 +1,8 @@
 package cmd
 
 import (
+	"runtime/debug"
+
 	"github.com/edgelesssys/constellation/internal/constants"
 	"github.com/spf13/cobra"
 )
@@ -12,9 +14,56 @@ func NewVersionCmd() *cobra.Command {
 		Short: "Display version of this CLI",
 		Long:  "Display version of this CLI.",
 		Args:  cobra.NoArgs,
-		Run: func(cmd *cobra.Command, args []string) {
-			cmd.Printf("CLI Version: v%s \n", constants.VersionInfo)
-		},
+		Run:   runVersion,
 	}
 	return cmd
 }
+
+func runVersion(cmd *cobra.Command, args []string) {
+	buildInfo, ok := debug.ReadBuildInfo()
+	if !ok {
+		cmd.Printf("Unable to retrieve build info. Is buildvcs enabled?")
+		return
+	}
+
+	commit, state, date, goVersion, compiler, platform := parseBuildInfo(buildInfo)
+
+	cmd.Printf("Version:\t%s\n", constants.VersionInfo)
+	cmd.Printf("GitCommit:\t%s\n", commit)
+	cmd.Printf("GitTreeState:\t%s\n", state)
+	cmd.Printf("BuildDate:\t%s\n", date)
+	cmd.Printf("GoVersion:\t%s\n", goVersion)
+	cmd.Printf("Compiler:\t%s\n", compiler)
+	cmd.Printf("Platform:\t%s\n", platform)
+}
+
+func parseBuildInfo(info *debug.BuildInfo) (commit, state, date, goVersion, compiler, platform string) {
+	var arch, os string
+	for idx := range info.Settings {
+		key := info.Settings[idx].Key
+		value := info.Settings[idx].Value
+
+		switch key {
+		case "-compiler":
+			compiler = value
+		case "GOARCH":
+			arch = value
+		case "GOOS":
+			os = value
+		case "vcs.time":
+			date = value
+		case "vcs.modified":
+			if value == "true" {
+				state = "dirty"
+			} else {
+				state = "clean"
+			}
+		case "vcs.revision":
+			commit = value
+		}
+	}
+
+	platform = os + "/" + arch
+	goVersion = info.GoVersion
+	return commit, state, date, goVersion, compiler, platform
+}

cli/internal/cmd/version_test.go

@@ -3,6 +3,7 @@ package cmd
 import (
 	"bytes"
 	"io"
+	"runtime/debug"
 	"testing"
 
 	"github.com/edgelesssys/constellation/internal/constants"
@@ -23,3 +24,45 @@ func TestVersionCmd(t *testing.T) {
 	assert.NoError(err)
 	assert.Contains(string(s), constants.VersionInfo)
 }
+
+func TestParseBuildInfo(t *testing.T) {
+	assert := assert.New(t)
+	info := debug.BuildInfo{
+		GoVersion: "go1.18.3",
+		Settings: []debug.BuildSetting{
+			{
+				Key:   "-compiler",
+				Value: "gc",
+			},
+			{
+				Key:   "GOARCH",
+				Value: "amd64",
+			},
+			{
+				Key:   "GOOS",
+				Value: "linux",
+			},
+			{
+				Key:   "vcs.time",
+				Value: "2022-06-20T11:57:25Z",
+			},
+			{
+				Key:   "vcs.modified",
+				Value: "true",
+			},
+			{
+				Key:   "vcs.revision",
+				Value: "abcdef",
+			},
+		},
+	}
+
+	commit, state, date, goVersion, compiler, platform := parseBuildInfo(&info)
+
+	assert.Equal("abcdef", commit)
+	assert.Equal("dirty", state)
+	assert.Equal("2022-06-20T11:57:25Z", date)
+	assert.Equal("go1.18.3", goVersion)
+	assert.Equal("gc", compiler)
+	assert.Equal("linux/amd64", platform)
+}