github.com/distbuild/reclient@v0.0.0-20240401075343-3de72e395564/cmd/reproxytool/main.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  // Binary reproxytool parses reclient log files for common debugging purpose.
    16  //
    17  // To see help information:
    18  //
    19  // bazelisk run //cmd/reproxytool:reproxytool -- --help
    20  //
    21  // Example Invocation:
    22  //
    23  // Convert reproxy.INFO log to usage CSV:
    24  // bazelisk run //cmd/reproxytool:reproxytool -- \
    25  // --operation=usage_to_csv --log_path=/tmp/reproxy.INFO \
    26  // --alsologtostderr
    27  package main
    28  
    29  import (
    30  	"flag"
    31  	"fmt"
    32  	"os"
    33  	"path"
    34  
    35  	csv "github.com/bazelbuild/reclient/cmd/reproxytool/usage2csv"
    36  	log "github.com/golang/glog"
    37  )
    38  
    39  // OpType denotes the type of operation to perform.
    40  type OpType string
    41  
    42  const (
    43  	usage2CSV OpType = "usage_to_csv"
    44  )
    45  
    46  var supportedOps = []OpType{
    47  	usage2CSV,
    48  }
    49  
    50  var (
    51  	operation = flag.String("operation", "", fmt.Sprintf("Specifies the operation to perform. Supported values: %v", supportedOps))
    52  	logPath   = flag.String("log_path", "", "Path to log file. E.g., /tmp/reproxy.INFO")
    53  )
    54  
    55  func main() {
    56  	flag.Usage = func() {
    57  		fmt.Fprintf(flag.CommandLine.Output(), "Usage: %v [-flags] -- --operation <op> arguments ...\n", path.Base(os.Args[0]))
    58  		flag.PrintDefaults()
    59  	}
    60  	flag.Parse()
    61  	if *operation == "" {
    62  		log.Exitf("--operation must be specified.")
    63  	}
    64  	switch OpType(*operation) {
    65  	case usage2CSV:
    66  		if err := csv.Usage2CSV(getLogPathFlag()); err != nil {
    67  			log.Exitf("Error parsing usage data from reproxy.INFO, %v,to CSV file %v", logPath, err)
    68  		}
    69  	default:
    70  		log.Exitf("Unsupported operation %v. Supported operations:\n%v", *operation, supportedOps)
    71  	}
    72  }
    73  
    74  func getLogPathFlag() string {
    75  	if *logPath == "" {
    76  		log.Exitf("--log_path must be specified.")
    77  	}
    78  	return *logPath
    79  }