Determine latest component versions automatically (#327)

* determine latest release tag automatically

Signed-off-by: Paul S. Schweigert <[email protected]>

* don't break things on release branches

Signed-off-by: Paul S. Schweigert <[email protected]>

Signed-off-by: Paul S. Schweigert <[email protected]>

Author: psschwei

hack/build-flags.sh

@@ -24,6 +24,12 @@ function build_flags() {
     [[ -n "${commit}" ]] || (echo "error getting the current commit" && exit 1)
     version="v$(date +%Y%m%d)-local-${commit}"
   fi
+  # Knative component versions
+  local branch="`git branch --show-current | cut -d '-' f2`"
+  local serving="`git ls-remote --tags --ref https://github.com/knative/serving.git | grep -F "${branch}" | cut -d '-' -f2 | cut -d 'v' -f2 | sort -Vr | head -n 1`"
+  local kourier="`git ls-remote --tags --ref https://github.com/knative-sandbox/net-kourier.git | grep -F "${branch}" | cut -d '-' -f2 | cut -d 'v' -f2 | sort -Vr | head -n 1`"
+  local eventing="`git ls-remote --tags --ref https://github.com/knative/eventing.git | grep -F "${branch}" | cut -d '-' -f2 | cut -d 'v' -f2 | sort -Vr | head -n 1`"
 
-  echo "-X '${VERSION_PACKAGE}.BuildDate=${now}' -X ${VERSION_PACKAGE}.Version=${version} -X ${VERSION_PACKAGE}.GitRevision=${rev}"
+
+  echo "-X '${VERSION_PACKAGE}.BuildDate=${now}' -X ${VERSION_PACKAGE}.Version=${version} -X ${VERSION_PACKAGE}.GitRevision=${rev} -X ${COMPONENT_PACKAGE}.ServingVersion=${serving} -X ${COMPONENT_PACKAGE}.KourierVersion=${kourier} -X ${COMPONENT_PACKAGE}.EventingVersion=${eventing}"
 }

hack/build.sh

@@ -31,6 +31,9 @@ MAIN_SOURCE_DIR="cmd"
 # Package which holds the version variables
 VERSION_PACKAGE="knative.dev/kn-plugin-quickstart/internal/command"
 
+# Package which holds the component variables
+COMPONENT_PACKAGE="knative.dev/kn-plugin-quickstart/pkg/install"
+
 # =================================================
 
 # Store for later

pkg/install/install.go

@@ -21,15 +21,16 @@ import (
 	"time"
 )
 
-var servingVersion = "1.7.1"
-var kourierVersion = "1.7.0"
-var eventingVersion = "1.7.1"
+// Component versions are generated at buildtime via the hack/build.sh script
+var ServingVersion string
+var KourierVersion string
+var EventingVersion string
 
 // Kourier installs Kourier networking layer from Github YAML files
 func Kourier() error {
-	fmt.Println("🕸️ Installing Kourier networking layer v" + kourierVersion + " ...")
+	fmt.Println("🕸️ Installing Kourier networking layer v" + KourierVersion + " ...")
 
-	if err := retryingApply("https://github.com/knative-sandbox/net-kourier/releases/download/knative-v" + kourierVersion + "/kourier.yaml"); err != nil {
+	if err := retryingApply("https://github.com/knative-sandbox/net-kourier/releases/download/knative-v" + KourierVersion + "/kourier.yaml"); err != nil {
 		return fmt.Errorf("wait: %w", err)
 	}
 	if err := waitForPodsReady("kourier-system"); err != nil {
@@ -94,7 +95,7 @@ spec:
 func KourierMinikube() error {
 	fmt.Println("🕸 Configuring Kourier for Minikube...")
 
-	if err := retryingApply("https://github.com/knative/serving/releases/download/knative-v" + servingVersion + "/serving-default-domain.yaml"); err != nil {
+	if err := retryingApply("https://github.com/knative/serving/releases/download/knative-v" + ServingVersion + "/serving-default-domain.yaml"); err != nil {
 		return fmt.Errorf("default domain: %w", err)
 	}
 	if err := waitForPodsReady("knative-serving"); err != nil {
@@ -109,8 +110,8 @@ func KourierMinikube() error {
 
 // Serving installs Knative Serving from Github YAML files
 func Serving() error {
-	fmt.Println("🍿 Installing Knative Serving v" + servingVersion + " ...")
-	baseURL := "https://github.com/knative/serving/releases/download/knative-v" + servingVersion
+	fmt.Println("🍿 Installing Knative Serving v" + ServingVersion + " ...")
+	baseURL := "https://github.com/knative/serving/releases/download/knative-v" + ServingVersion
 
 	if err := retryingApply(baseURL + "/serving-crds.yaml"); err != nil {
 		return fmt.Errorf("wait: %w", err)
@@ -138,8 +139,8 @@ func Serving() error {
 
 // Eventing installs Knative Eventing from Github YAML files
 func Eventing() error {
-	fmt.Println("🔥 Installing Knative Eventing v" + eventingVersion + " ... ")
-	baseURL := "https://github.com/knative/eventing/releases/download/knative-v" + eventingVersion
+	fmt.Println("🔥 Installing Knative Eventing v" + EventingVersion + " ... ")
+	baseURL := "https://github.com/knative/eventing/releases/download/knative-v" + EventingVersion
 
 	if err := retryingApply(baseURL + "/eventing-crds.yaml"); err != nil {
 		return fmt.Errorf("wait: %w", err)