Add -version flag to show version of each binary.

cmd/tidelift-sbom-analyzer/main.go

@@ -15,11 +15,19 @@ import (
 	utils "github.com/tidelift/tidelift-sbom-info/internal/utils"
 )
 
+// This gets overwritten by goreleaser with the git tag, during a release.
+var (
+	version = "dev"
+)
+
 func main() {
 	var debug bool
 	var outputFile string
+	var printVersion bool
+
 	flag.BoolVar(&debug, "debug", false, "Show debug logging")
 	flag.StringVar(&outputFile, "output", "", "Write output to a file (defaults to stdout)")
+	flag.BoolVar(&printVersion, "version", false, "Show version information")
 
 	flag.Usage = func() {
 		fmt.Fprintln(flag.CommandLine.Output(), "Display a CSV containing recommendations from Tidelift for the packages in an SBOM.")
@@ -33,6 +41,11 @@ func main() {
 
 	flag.Parse()
 
+	if printVersion {
+		fmt.Println(version)
+		os.Exit(1)
+	}
+
 	if _, keyExists := os.LookupEnv("TIDELIFT_API_KEY"); !keyExists {
 		log.Fatalf("Error: TIDELIFT_API_KEY environment variable is required.")
 	}

cmd/tidelift-sbom-vulnerability-reporter/main.go

@@ -38,21 +38,19 @@ type VulnerabilityDetails struct {
 	RecommendationDetails *RecommendationDetails `json:"recommendation_details"`
 }
 
+// This gets overwritten by goreleaser with the git tag, during a release.
 var (
 	version = "dev"
-	commit  = "none"
-	date    = "unknown"
 )
 
 func main() {
-
-	fmt.Printf("my app %s, commit %s, built at %s", version, commit, date)
-
 	var debug bool
 	var outputFile string
+	var printVersion bool
 
 	flag.BoolVar(&debug, "debug", false, "Show debug logging")
 	flag.StringVar(&outputFile, "output", "", "Write output to a file (defaults to stdout)")
+	flag.BoolVar(&printVersion, "version", false, "Show version information")
 
 	flag.Usage = func() {
 		fmt.Fprintln(flag.CommandLine.Output(), "Display a JSON file containing vulnerabilities from Tidelift for the packages in an SBOM.")
@@ -66,6 +64,11 @@ func main() {
 
 	flag.Parse()
 
+	if printVersion {
+		fmt.Println(version)
+		os.Exit(1)
+	}
+
 	if _, keyExists := os.LookupEnv("TIDELIFT_API_KEY"); !keyExists {
 		log.Fatalf("Error: TIDELIFT_API_KEY environment variable is required.")
 	}