Move verify-spelling to script, install from vendor

Gopkg.toml

@@ -17,6 +17,9 @@ required = [
 
   # Needed for bazel generation / verification
   "github.com/bazelbuild/bazel-gazelle/cmd/gazelle",
+
+  # Needed for spell checking
+  "github.com/client9/misspell/cmd/misspell",
 ]
 
 [prune]

Makefile

@@ -527,15 +527,7 @@ verify-packages: ${BINDATA_TARGETS}
 # find release notes, remove PR titles and output the rest to .build, then run misspell on all files
 .PHONY: verify-misspelling
 verify-misspelling:
-	@which misspell 2>/dev/null ; if [ $$? -eq 1 ]; then \
-		go get -u github.com/client9/misspell/cmd/misspell; \
-	fi
-	@mkdir -p .build/docs
-	@find . -type f \( -name "*.go*" -o -name "*.md*" \) -a -path "./docs/releases/*" -exec basename {} \; | \
-		xargs -I{} sh -c 'sed -e "/^\* .*github.com\/kubernetes\/kops\/pull/d" docs/releases/{} > .build/docs/$(basename {})'
-	@find . -type f \( -name "*.go*" -o -name "*.md*" \) -a \( -not -path "./vendor/*" -not -path "./_vendor/*" -not -path "./docs/releases/*" \) | \
-		sed -e /README-ES.md/d -e /node_modules/d | \
-		xargs misspell -error
+	hack/verify-spelling.sh
 
 .PHONY: verify-gendocs
 verify-gendocs: ${KOPS}

hack/verify-spelling.sh

@@ -0,0 +1,32 @@
+# Copyright 2018 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#!/bin/bash
+
+set -e
+
+REPO_ROOT=$(git rev-parse --show-toplevel)
+cd "${REPO_ROOT}"
+
+OUTPUT_GOBIN="${REPO_ROOT}/_output/bin"
+GOBIN="${OUTPUT_GOBIN}" go install ./vendor/github.com/client9/misspell/cmd/misspell
+
+mkdir -p .build/docs
+find . -type f \( -name "*.go*" -o -name "*.md*" \) -a -path "./docs/releases/*" -exec basename {} \; | \
+	xargs -I{} sh -c 'sed -e "/^\* .*github.com\/kubernetes\/kops\/pull/d" docs/releases/{} > .build/docs/$(basename {})'
+find . -type f \( -name "*.go*" -o -name "*.md*" \) -a \( -not -path "./vendor/*" -not -path "./_vendor/*" -not -path "./docs/releases/*" \) | \
+  sed -e /README-ES.md/d -e /node_modules/d |
+		xargs ${OUTPUT_GOBIN}/misspell -error
+
+