krew 0.3.2 (new formula)

Closes #47128.

Signed-off-by: Rui Chen <chenrui333@gmail.com>

Formula/krew.rb

@@ -0,0 +1,23 @@
+class Krew < Formula
+  desc "Package manager for kubectl plugins"
+  homepage "https://krew.dev"
+  url "https://github.com/kubernetes-sigs/krew/archive/v0.3.2.tar.gz"
+  sha256 "c1807bdf1f504061a75cce67874529533f511aa02a09e313684f2e507f1dd195"
+
+  depends_on "go" => :build
+  depends_on "kubernetes-cli"
+
+  def install
+    ENV["CGO_ENABLED"] = "0"
+    # build in local dir to avoid this error:
+    # go build: cannot write multiple packages to non-directory /usr/local/Cellar/krew/0.3.2/bin/krew
+    mkdir "build"
+    system "go", "build", "-o", "build", "-tags", "netgo", "./cmd/krew/..."
+    # install as kubectl-krew for kubectl to find as plugin
+    bin.install "build/krew" => "kubectl-krew"
+  end
+
+  test do
+    system "#{bin}/kubectl-krew", "version"
+  end
+end