devtool: resolve artifact version from Cargo.toml

automatically determine the version of the artifacts folder from the
Firecracker version in Cargo.toml. Eliminates one of the things we have
to manually update during the release.

Signed-off-by: Patrick Roy <[email protected]>

Author: roypat

tools/devtool

@@ -562,7 +562,8 @@ ensure_ci_artifacts() {
 
     # Fetch all the artifacts so they are local
     say "Fetching CI artifacts from S3"
-    S3_URL=s3://spec.ccfc.min/firecracker-ci/v1.11/$(uname -m)
+    FC_VERSION=$(cmd_sh "cd src/firecracker/src; cargo pkgid | cut -d# -f2 | cut -d. -f1-2")
+    S3_URL=s3://spec.ccfc.min/firecracker-ci/v$FC_VERSION/$(uname -m)
     ARTIFACTS=$MICROVM_IMAGES_DIR/$(uname -m)
     if [ ! -d "$ARTIFACTS" ]; then
         mkdir -pv $ARTIFACTS