github.com/distbuild/reclient@v0.0.0-20240401075343-3de72e395564/experiments/internal/pkg/runner/runner.go (about)

     1  // Copyright 2023 Google LLC
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  // Package runner is used to create new experiments using experiment texproto files
    16  package runner
    17  
    18  import (
    19  	"context"
    20  	"fmt"
    21  	"os"
    22  	"path/filepath"
    23  	"time"
    24  
    25  	"github.com/bazelbuild/reclient/experiments/internal/pkg/experiment"
    26  	"github.com/bazelbuild/reclient/experiments/internal/pkg/gcs"
    27  
    28  	"google.golang.org/protobuf/encoding/prototext"
    29  
    30  	epb "github.com/bazelbuild/reclient/experiments/api/experiment"
    31  )
    32  
    33  // RunExperiment will create a new experiment based on given experiment textproto
    34  func RunExperiment(expDefPath string, dateSuffix string, gcpProject string, resBucket string, logFrequency int) (string, error) {
    35  	exp, err := os.ReadFile(expDefPath)
    36  	if err != nil {
    37  		return "", fmt.Errorf("Failed to read experiment definition file: %v", err)
    38  	}
    39  	expPb := &epb.Experiment{}
    40  	if err := prototext.Unmarshal(exp, expPb); err != nil {
    41  		return "", fmt.Errorf("Failed to parse experiment definition file: %v", err)
    42  	}
    43  	date := time.Now().Format("20060102-1504")
    44  	if dateSuffix != "" {
    45  		date = dateSuffix
    46  	}
    47  	e, err := experiment.NewExperiment(expPb, filepath.Dir(expDefPath), gcpProject, date, resBucket, logFrequency)
    48  	if err != nil {
    49  		return "", fmt.Errorf("Failed to create experiment: %v", err)
    50  	}
    51  	ctx := context.Background()
    52  
    53  	expName := expPb.GetName() + "_" + date
    54  	dest := fmt.Sprintf("gs://%v/%v/", resBucket, expName)
    55  	if err := gcs.Copy(ctx, expDefPath, dest); err != nil {
    56  		return "", fmt.Errorf("Failed to upload experiment definition: %v", err)
    57  	}
    58  	if err := e.Run(ctx); err != nil {
    59  		return "", fmt.Errorf("Failed to run experiment: %v", err)
    60  	}
    61  	return expName, nil
    62  }