main.go

// Copyright 2019 The New York Times Company
//
// 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, express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package main

import (
	"fmt"
	"log"
	"os"

	"go.uber.org/zap"
	"go.uber.org/zap/zapcore"

	ht "github.com/nytimes/httptest/internal"
)

var (
	// BuildBranch is the branch of the source the binary built from
	BuildBranch string

	// BuildCommit is the commit hash
	BuildCommit string

	// BuildTime is the build time
	BuildTime string
)

func buildLogger(logLevel int) *zap.Logger {
	zapLevel := zap.FatalLevel
	switch logLevel {
	case 0:
		zapLevel = zap.FatalLevel
	case 1:
		zapLevel = zap.InfoLevel
	default:
		zapLevel = zap.DebugLevel
	}

	config := zap.Config{
		Level:       zap.NewAtomicLevelAt(zapLevel),
		Development: false,
		Encoding:    "json",
		EncoderConfig: zapcore.EncoderConfig{
			TimeKey:        "ts",
			LevelKey:       "level",
			NameKey:        "logger",
			CallerKey:      zapcore.OmitKey,
			FunctionKey:    zapcore.OmitKey,
			MessageKey:     "msg",
			StacktraceKey:  "stacktrace",
			LineEnding:     zapcore.DefaultLineEnding,
			EncodeLevel:    zapcore.LowercaseLevelEncoder,
			EncodeTime:     zapcore.EpochTimeEncoder,
			EncodeDuration: zapcore.SecondsDurationEncoder,
			EncodeCaller:   zapcore.ShortCallerEncoder,
		},
		OutputPaths: []string{
			"stderr",
		},
		ErrorOutputPaths: []string{
			"stderr",
		},
	}
	return zap.Must(config.Build())
}

func main() {
	// Print version info
	fmt.Printf("httptest: %s %s %s\n", BuildCommit, BuildBranch, BuildTime)

	// Get and apply config
	config, err := ht.FromEnv()
	if err != nil {
		log.Fatalf("error: failed to parse config: %s", err)
	}

	if err := ht.ApplyConfig(config); err != nil {
		log.Fatalf("error: failed to apply config: %s", err)
	}

	logger := buildLogger(config.Verbosity)
	defer logger.Sync()
	zap.ReplaceGlobals(logger)

	// Parse and run tests
	tests, err := ht.ParseAllTestsInDirectory(config.TestDirectory)
	if err != nil {
		log.Fatalf("error: failed to parse tests: %s", err)
	}

	if !ht.RunTests(tests, config) {
		os.Exit(1)
	}

	os.Exit(0)
}