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10 changes: 9 additions & 1 deletion release-tools/prow.sh
Original file line number Diff line number Diff line change
Expand Up @@ -564,7 +564,15 @@ go_version_for_kubernetes () (
local version="$2"
local go_version

# We use the minimal Go version specified for each K8S release (= minimum_go_version in hack/lib/golang.sh).
# Try to get the version for .go-version
go_version="$( cat "$path/.go-version" )"
if [ "$go_version" ]; then
echo "$go_version"
return
fi

# Fall back to hack/lib/golang.sh parsing.
# This is necessary in v1.26.0 and older Kubernetes releases that do not have .go-version.
# More recent versions might also work, but we don't want to count on that.
go_version="$(grep minimum_go_version= "$path/hack/lib/golang.sh" | sed -e 's/.*=go//')"
if ! [ "$go_version" ]; then
Expand Down