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// Copyright (C) MongoDB, Inc. 2017-present.
//
// 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
package benchmark
import (
"context"
"encoding/json"
"flag"
"fmt"
"io/ioutil"
"os"
)
func DriverBenchmarkMain() int {
var hasErrors bool
var outputFileName string
flag.StringVar(&outputFileName, "output", "perf.json", "path to write the 'perf.json' file")
flag.Parse()
ctx := context.Background()
output := []interface{}{}
for _, res := range runDriverCases(ctx) {
if res.HasErrors() {
hasErrors = true
}
evg, err := res.EvergreenPerfFormat()
if err != nil {
hasErrors = true
continue
}
output = append(output, evg...)
}
evgOutput, err := json.MarshalIndent(map[string]interface{}{"results": output}, "", " ")
if err != nil {
return 1
}
evgOutput = append(evgOutput, []byte("\n")...)
if outputFileName == "" {
fmt.Println(string(evgOutput))
} else if err := ioutil.WriteFile(outputFileName, evgOutput, 0644); err != nil {
fmt.Fprintf(os.Stderr, "problem writing file '%s': %s", outputFileName, err.Error())
return 1
}
if hasErrors {
return 1
}
return 0
}
func runDriverCases(ctx context.Context) []*BenchResult {
cases := getAllCases()
results := []*BenchResult{}
for _, bc := range cases {
results = append(results, bc.Run(ctx))
}
return results
}
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