*: clear rarer shellcheck errors on scripts

Clean up the tail of the warnings

build

@@ -3,9 +3,7 @@
 # set some environment variables
 ORG_PATH="github.com/coreos"
 REPO_PATH="${ORG_PATH}/etcd"
-export GO15VENDOREXPERIMENT="1"
 
-eval $(go env)
 GIT_SHA=`git rev-parse --short HEAD || echo "GitNotFound"`
 if [ ! -z "$FAILPOINTS" ]; then
 	GIT_SHA="$GIT_SHA"-FAILPOINTS
@@ -17,11 +15,7 @@ GO_LDFLAGS="$GO_LDFLAGS -X ${REPO_PATH}/cmd/vendor/${REPO_PATH}/version.GitSHA=$
 # enable/disable failpoints
 toggle_failpoints() {
 	FAILPKGS="etcdserver/ mvcc/backend/"
-
-	mode="disable"
-	if [ ! -z "$FAILPOINTS" ]; then mode="enable"; fi
-	if [ ! -z "$1" ]; then mode="$1"; fi
-
+	mode="$1"
 	if which gofail >/dev/null 2>&1; then
 		gofail "$mode" $FAILPKGS
 	elif [ "$mode" != "disable" ]; then
@@ -30,19 +24,26 @@ toggle_failpoints() {
 	fi
 }
 
+toggle_failpoints_default() {
+	mode="disable"
+	if [ ! -z "$FAILPOINTS" ]; then mode="enable"; fi
+	toggle_failpoints "$mode"
+}
+
 etcd_build() {
 	out="bin"
 	if [ -n "${BINDIR}" ]; then out="${BINDIR}"; fi
-	toggle_failpoints
+	toggle_failpoints_default
 	# Static compilation is useful when etcd is run in a container
 	CGO_ENABLED=0 go build $GO_BUILD_FLAGS -installsuffix cgo -ldflags "$GO_LDFLAGS" -o ${out}/etcd ${REPO_PATH}/cmd/etcd || return
 	CGO_ENABLED=0 go build $GO_BUILD_FLAGS -installsuffix cgo -ldflags "$GO_LDFLAGS" -o ${out}/etcdctl ${REPO_PATH}/cmd/etcdctl || return
 }
 
 etcd_setup_gopath() {
-	CDIR=$(cd `dirname "$0"` && pwd)
+	d=$(dirname "$0")
+	CDIR=$(cd "$d" && pwd)
 	cd "$CDIR"
-	etcdGOPATH=${CDIR}/gopath
+	etcdGOPATH="${CDIR}/gopath"
 	# preserve old gopath to support building with unvendored tooling deps (e.g., gofail)
 	if [ -n "$GOPATH" ]; then
 		GOPATH=":$GOPATH"
@@ -53,7 +54,7 @@ etcd_setup_gopath() {
 	ln -s ${CDIR}/cmd/vendor ${etcdGOPATH}/src
 }
 
-toggle_failpoints
+toggle_failpoints_default
 
 # only build when called directly, not sourced
 if echo "$0" | grep "build$" >/dev/null; then

scripts/build-aci

@@ -71,7 +71,7 @@ acbuild --debug port add peer tcp 2380
 
 acbuild --debug copy "$TMPHOSTS" /etc/hosts
 
-acbuild --debug label add arch $(go2aci ${GOARCH})
+acbuild --debug label add arch "$(go2aci ${GOARCH})"
 
 # mkdir default data-dir
 mkdir -p .acbuild/currentaci/rootfs/var/lib/etcd

scripts/build-docker

@@ -17,8 +17,7 @@ if [ -z ${BINARYDIR} ]; then
 	BINARYDIR="${RELEASE}"
 	TARFILE="${RELEASE}.tar.gz"
 	TARURL="https://github.com/coreos/etcd/releases/download/${1}/${TARFILE}"
-	curl -f -L -o ${TARFILE} ${TARURL}
-	if [ $? != 0 ]; then
+	if ! curl -f -L -o ${TARFILE} ${TARURL} ; then
 		echo "Failed to download ${TARURL}."
 		exit 1
 	fi

scripts/genproto.sh

@@ -57,7 +57,7 @@ popd
 
 for dir in ${DIRS}; do
 	pushd ${dir}
-		protoc --gofast_out=plugins=grpc,import_prefix=github.com/coreos/:. -I=.:"${GOGOPROTO_PATH}":"${COREOS_ROOT}":"${GRPC_GATEWAY_ROOT}/third_party/googleapis" *.proto
+		protoc --gofast_out=plugins=grpc,import_prefix=github.com/coreos/:. -I=".:${GOGOPROTO_PATH}:${COREOS_ROOT}:${GRPC_GATEWAY_ROOT}/third_party/googleapis" *.proto
 		sed -i.bak -E "s/github\.com\/coreos\/(gogoproto|github\.com|golang\.org|google\.golang\.org)/\1/g" *.pb.go
 		sed -i.bak -E 's/github\.com\/coreos\/(errors|fmt|io)/\1/g' *.pb.go
 		sed -i.bak -E 's/import _ \"gogoproto\"//g' *.pb.go

scripts/release.sh

@@ -21,7 +21,7 @@ if ! command -v docker >/dev/null; then
     exit 1
 fi
 
-ETCD_ROOT=$(dirname "${BASH_SOURCE}")/..
+ETCD_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 
 pushd ${ETCD_ROOT} >/dev/null
 	echo Building etcd binary...

scripts/updatedep.sh

@@ -43,7 +43,7 @@ pushd "${GLIDE_VC_ROOT}"
 popd
 
 if [ -n "$1" ]; then
-	echo "glide get on $(echo $1)"
+	echo "glide get on $1"
 	matches=`grep "name: $1" glide.lock`
 	if [ ! -z "$matches" ]; then
 		echo "glide update on $1"

test

@@ -23,6 +23,8 @@ if [ -z "$PASSES" ]; then
 	PASSES="fmt bom dep compile build unit"
 fi
 
+USERPKG=${PKG:-}
+
 # Invoke ./cover for HTML output
 COVER=${COVER:-"-cover"}
 
@@ -31,41 +33,39 @@ IGNORE_PKGS="(cmd/|etcdserverpb|rafttest|gopath.proto|v3lockpb|v3electionpb)"
 INTEGRATION_PKGS="(integration|e2e|contrib|functional-tester)"
 
 # all github.com/coreos/etcd/whatever pkgs that are not auto-generated / tools
-PKGS=`find . -name \*.go | while read a; do dirname $a; done | sort | uniq | egrep -v "$IGNORE_PKGS" | egrep -v "(tools/|contrib/|e2e|pb)" | sed "s|\.|${REPO_PATH}|g"`
+PKGS=`find . -name \*.go | while read a; do dirname $a; done | sort | uniq | egrep -v "$IGNORE_PKGS" | egrep -v "(tools/|contrib/|e2e|pb)" | sed "s|\.|${REPO_PATH}|g" | xargs echo`
 # pkg1,pkg2,pkg3
-PKGS_COMMA=`echo ${PKGS} | sed 's/ /,/g'`
+PKGS_COMMA=${PKGS// /,}
 
 TEST_PKGS=`find . -name \*_test.go | while read a; do dirname $a; done | sort | uniq | egrep -v "$IGNORE_PKGS" | sed "s|\./||g"`
-FORMATTABLE=`find . -name \*.go | while read a; do echo $(dirname $a)/"*.go"; done | sort | uniq | egrep -v "$IGNORE_PKGS" | sed "s|\./||g"`
+FORMATTABLE=`find . -name \*.go | while read a; do echo "$(dirname $a)/*.go"; done | sort | uniq | egrep -v "$IGNORE_PKGS" | sed "s|\./||g"`
 TESTABLE_AND_FORMATTABLE=`echo "$TEST_PKGS" | egrep -v "$INTEGRATION_PKGS"`
 
-# TODO: 'client' pkg fails with gosimple from generated files
-# TODO: 'rafttest' is failing with unused
-STATIC_ANALYSIS_PATHS=`find . -name \*.go | while read a; do dirname $a; done | sort | uniq | egrep -v "$IGNORE_PKGS" | grep -v 'client'`
-
-if [ -z "$GOARCH" ]; then
-	GOARCH=$(go env GOARCH);
-fi
-
-# user has not provided PKG override
-if [ -z "$PKG" ]; then
+# check if user provided PKG override
+if [ -z "${USERPKG}" ]; then
 	TEST=$TESTABLE_AND_FORMATTABLE
 	FMT=$FORMATTABLE
-
-# user has provided PKG override
 else
 	# strip out leading dotslashes and trailing slashes from PKG=./foo/
-	TEST=${PKG/#./}
+	TEST=${USERPKG/#./}
 	TEST=${TEST/#\//}
 	TEST=${TEST/%\//}
-
 	# only run gofmt on packages provided by user
 	FMT="$TEST"
 fi
 
 # split TEST into an array and prepend REPO_PATH to each local package
 split=(${TEST// / })
-TEST=${split[@]/#/${REPO_PATH}/}
+TEST=${split/#/${REPO_PATH}/}
+
+# TODO: 'client' pkg fails with gosimple from generated files
+# TODO: 'rafttest' is failing with unused
+STATIC_ANALYSIS_PATHS=`find . -name \*.go | while read a; do dirname $a; done | sort | uniq | egrep -v "$IGNORE_PKGS" | grep -v 'client'`
+
+if [ -z "$GOARCH" ]; then
+	GOARCH=$(go env GOARCH);
+fi
+
 
 # determine whether target supports race detection
 if [ "$GOARCH" == "amd64" ]; then
@@ -235,7 +235,7 @@ function fmt_pass {
 		shellcheckResult=$(shellcheck -fgcc build test scripts/* 2>&1 || true)
 		if [ -n "${shellcheckResult}" ]; then
 			# mask the most common ones; fix later
-			SHELLCHECK_MASK="SC(2086|2006|2068|2196|2035|2162|2046|2076)"
+			SHELLCHECK_MASK="SC(2086|2006|2068|2196|2035|2162|2076)"
 			errs=$(echo "${shellcheckResult}" | egrep -v "${SHELLCHECK_MASK}" || true)
 			if [ -n "${errs}" ]; then
 				echo -e "shellcheck checking failed:\n${shellcheckResult}\n===\nFailed:\n${errs}"
@@ -248,7 +248,7 @@ function fmt_pass {
 
 	echo "Checking documentation style..."
 	# eschew you
-	yous=`find . -name \*.md | xargs egrep --color "[Yy]ou[r]?[ '.,;]" | grep -v /v2/ || true`
+	yous=`find . -name \*.md -exec egrep --color "[Yy]ou[r]?[ '.,;]" {} + | grep -v /v2/ || true`
 	if [ ! -z "$yous" ]; then
 		echo -e "found 'you' in documentation:\n${yous}"
 		exit 255
@@ -289,7 +289,7 @@ function fmt_pass {
 			# TODO: resolve these after go1.8 migration
 			SIMPLE_CHECK_MASK="S(1024)"
 			if echo "${gosimpleResult}" | egrep -v "$SIMPLE_CHECK_MASK"; then
-				echo -e "gosimple checking ${path} failed:\n${gosimpleResult}"
+				echo -e "gosimple checking failed:\n${gosimpleResult}"
 				exit 255
 			else
 				echo -e "gosimple warning:\n${gosimpleResult}"
@@ -318,7 +318,7 @@ function fmt_pass {
 			# See https://github.com/dominikh/go-tools/tree/master/cmd/staticcheck
 			STATIC_CHECK_MASK="SA(1019|2002)"
 			if echo "${staticcheckResult}" | egrep -v "$STATIC_CHECK_MASK"; then
-				echo -e "staticcheck checking ${path} failed:\n${staticcheckResult}"
+				echo -e "staticcheck checking failed:\n${staticcheckResult}"
 				exit 255
 			else
 				suppressed=`echo "${staticcheckResult}" | sed 's/ /\n/g' | grep "(SA" | sort | uniq -c`
@@ -330,16 +330,20 @@ function fmt_pass {
 	fi
 
 	echo "Checking for license header..."
-	licRes=$(for file in $(find . -type f -iname '*.go' ! -path './cmd/*' ! -path './gopath.proto/*'); do
-			head -n3 "${file}" | grep -Eq "(Copyright|generated|GENERATED)" || echo -e "  ${file}"
-		done;)
+	licRes=""
+	files=$(find . -type f -iname '*.go' ! -path './cmd/*' ! -path './gopath.proto/*')
+	for file in $files; do
+		if ! head -n3 "${file}" | grep -Eq "(Copyright|generated|GENERATED)" ; then
+			licRes="${licRes}"$(echo -e "  ${file}")
+		fi
+	done
 	if [ -n "${licRes}" ]; then
 		echo -e "license header checking failed:\n${licRes}"
 		exit 255
 	fi
 
 	echo "Checking commit titles..."
-	git log --oneline `git merge-base HEAD master`...HEAD | while read l; do
+	git log --oneline "$(git merge-base HEAD master)"...HEAD | while read l; do
 		commitMsg=`echo "$l" | cut -f2- -d' '`
 		if [[ "$commitMsg" == Merge* ]]; then
 			# ignore "Merge pull" commits
@@ -371,7 +375,7 @@ function bom_pass {
 		--override-file bill-of-materials.override.json \
 		github.com/coreos/etcd github.com/coreos/etcd/etcdctl >bom-now.json || true
 	if ! diff bill-of-materials.json bom-now.json; then
-		echo vendored licenses do not match given bill of materials
+		echo "vendored licenses do not match given bill of materials"
 		exit 255
 	fi
 	rm bom-now.json