(#6) Fail build if coverage is low

.gitignore

@@ -9,6 +9,7 @@ gitlint
 
 " test coverage
 coverage.txt
+cov_check.txt
 
 " PDD output file
 puzzles.xml

.pdd

@@ -6,6 +6,7 @@
 --exclude coverage.txt
 --exclude .gitignore
 --exclude go.sum
+--exclude cov_check.txt
 --rule min-words:20
 --rule min-estimate:0
 --rule max-estimate:0

Makefile

@@ -29,15 +29,18 @@ build:
 	go build -o gitlint cmd/go-gitlint/main.go
 
 test:
-	go test -count=1 -race -cover -coverprofile=coverage.txt -covermode=atomic ./...
+	go test -count=1 -race -cover -coverprofile=coverage.txt -covermode=atomic ./... | tee cov_check.txt
+
+coverage:
+	./check_coverage.sh
 
 lint:
 	./bin/golangci-lint run
 
 pdd:
 	pdd --file=puzzles.xml
 
-checks: build lint pdd test
+checks: build lint pdd test coverage
 
 release:
 	./release.sh

check_coverage.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+# 
+# Copyright 2019 George Aristy
+# 
+# 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.
+# 
+
+let THRESHOLD=80
+
+let exit_code=0
+
+while read line; do
+	if [ "$(echo $line | grep coverage)" != "" ]; then
+		pkg=$(echo $line | sed 's/\s\+/ /g' | sed 's/%//' | cut -d ' ' -f 2)
+		cov=$(echo $line | sed 's/\s\+/ /g' | sed 's/%//' | cut -d ' ' -f 5)
+		if [ 1 -eq $(echo "$THRESHOLD > $cov" | bc) ]; then
+			echo "Coverage [$cov] for package [$pkg] is below threshold [$THRESHOLD]"
+			let exit_code++
+		fi
+	fi
+done < ./cov_check.txt
+
+exit $exit_code