Use tag retrieval in the location header instead of a static file

Makefile

@@ -161,9 +161,3 @@ oci-arm-push: build-linux-arm64
 	@echo "With the following pull command you get a containerlab binary at your working directory. To use this downloaded binary - do `chmod +x ./containerlab` and then `./containerlab deploy`. Make sure not forget to add ./ prefix in order to use the downloaded binary and not the globally installed containerlab!"
 	@echo 'If https proxy is configured in your environment, pass the proxies via --env HTTPS_PROXY="<proxy-address>" flag of the docker run command.'
 	@echo "download with: sudo docker run --rm -v \$$(pwd):/workspace ghcr.io/oras-project/oras:v1.1.0 pull ghcr.io/srl-labs/clab-oci:$(COMMIT_HASH)"
-
-tag-release: # tag the release and save the version in ./internal/versions/latest
-	@VERSION_CLEAN=$$(echo "$(VERSION)" | sed 's/^v//') && \
-	echo "$$VERSION_CLEAN" > ./internal/versions/latest && \
-	git add . && git commit -m "release $$VERSION_CLEAN" && \
-	git tag v$$VERSION_CLEAN

get.sh

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 # The install script is based off of the Apache 2.0 script from Helm,
 # https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3
 
@@ -10,7 +12,7 @@
 : ${REPO_NAME:="srl-labs/containerlab"}
 : ${REPO_URL:="https://github.com/$REPO_NAME"}
 : ${PROJECT_URL:="https://containerlab.dev"}
-: ${VERSIONS_FILE_URL:="https://raw.githubusercontent.com/srl-labs/containerlab/refs/heads/main/internal/versions/latest"}
+: ${LATEST_VERSION_URL:="${REPO_URL}/releases/latest"}
 
 # detectArch discovers the architecture for this system.
 detectArch() {
@@ -106,8 +108,8 @@ handleVersionError() {
 processVersion() {
     local version=$1
     [ -z "$version" ] && handleVersionError
-    TAG_WO_VER="$version"
-    TAG="v${version}"
+    TAG_WO_VER=$(echo "${version}" | cut -c 2-)
+    TAG="${version}"
 }
 
 # setDesiredVersion sets the desired version either to an explicit version provided by a user
@@ -117,10 +119,10 @@ setDesiredVersion() {
         # when desired version is not provided
         # get latest tag from the <repo>/internal/versions.yml
         if type "curl" &>/dev/null; then
-            local latest_version=$(curl -s ${VERSIONS_FILE_URL})
+            local latest_version=$(curl -s -I ${LATEST_VERSION_URL} | grep -i "location:" | awk -F'/' '{print $NF}' | tr -cd '[:alnum:].-')
             processVersion "$latest_version"
         elif type "wget" &>/dev/null; then
-            local latest_version=$(wget -q -O- ${VERSIONS_FILE_URL})
+            local latest_version=$(wget -qO- -S --spider ${LATEST_VERSION_URL} 2>&1 | grep -i "location:" | awk -F'/' '{print $NF}' | tr -cd '[:alnum:].-')
             processVersion "$latest_version"
         fi
     else
@@ -220,7 +222,7 @@ downloadFile() {
     CHECKSUM_URL="${REPO_URL}/releases/download/${TAG}/checksums.txt"
     TMP_FILE="$TMP_ROOT/$ARCHIVE"
     SUM_FILE="$TMP_ROOT/checksums.txt"
-    echo "Downloading $DOWNLOAD_URL"
+    echo "Downloading ${DOWNLOAD_URL}"
     if type "curl" &>/dev/null; then
         curl -SsL "$CHECKSUM_URL" -o "$SUM_FILE"
         curl -SsL "$DOWNLOAD_URL" -o "$TMP_FILE"
@@ -328,7 +330,7 @@ help() {
     echo -e "\t[--verify-checksum]  ->> verify checksum of the downloaded file"
 }
 
-# removes temporary directory used to download artefacts
+# removes temporary directory used to download artifacts
 cleanup() {
     if [[ -d "${TMP_ROOT:-}" ]]; then
         rm -rf "$TMP_ROOT"