Add correct license header to attribute to temporal and update licens…

…e generation tool (cadence-workflow#3674)

LICENSE

@@ -1,7 +1,3 @@
-The MIT License (MIT)
-
-Copyright (c) 2017-2020 Uber Technologies Inc.
-
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights

Makefile

@@ -145,12 +145,16 @@ cadence-canary: $(ALL_SRC)
 	@echo "compiling cadence-canary with OS: $(GOOS), ARCH: $(GOARCH)"
 	go build -o cadence-canary cmd/canary/main.go
 
+go-generate-format: go-generate fmt
+
 go-generate:
 	GO111MODULE=off go get -u github.com/myitcv/gobin
 	GOOS= GOARCH= gobin -mod=readonly github.com/golang/mock/mockgen
 	GOOS= GOARCH= gobin -mod=readonly github.com/dmarkham/enumer
 	@echo "running go generate ./..."
 	@go generate ./...
+	@echo "running go run cmd/tools/copyright/licensegen.go"
+	@go run cmd/tools/copyright/licensegen.go 
 
 lint:
 	@echo "running linter"

client/clientBean.go

@@ -18,7 +18,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-//go:generate mockgen -copyright_file ../LICENSE -package $GOPACKAGE -source $GOFILE -destination clientBean_mock.go -self_package github.com/uber/cadence/client
+//go:generate mockgen -package $GOPACKAGE -source $GOFILE -destination clientBean_mock.go -self_package github.com/uber/cadence/client
 
 package client
 

cmd/tools/copyright/licensegen.go

@@ -22,6 +22,7 @@ package main
 
 import (
 	"bufio"
+	"errors"
 	"flag"
 	"fmt"
 	"io/ioutil"
@@ -40,17 +41,26 @@ type (
 
 	// command line config params
 	config struct {
-		rootDir    string
-		verifyOnly bool
+		rootDir            string
+		verifyOnly         bool
+		temporalAddMode    bool
+		temporalModifyMode bool
+		filePaths          string
 	}
 )
 
 // licenseFileName is the name of the license file
 const licenseFileName = "LICENSE"
 
 // unique prefix that identifies a license header
-const licenseHeaderPrefixOld = "// Copyright (c)"
+const licenseHeaderPrefixOld = "Copyright (c)"
 const licenseHeaderPrefix = "// The MIT License (MIT)"
+const cadenceCopyright = "// Copyright (c) 2017-2020 Uber Technologies Inc."
+const cadenceModificationHeader = "// Modifications Copyright (c) 2020 Uber Technologies Inc."
+const temporalCopyright = "// Copyright (c) 2020 Temporal Technologies, Inc."
+const temporalPartialCopyright = "// Portions of the Software are attributed to Copyright (c) 2020 Temporal Technologies Inc."
+
+const firstLinesToCheck = 10
 
 var (
 	// directories to be excluded
@@ -69,15 +79,38 @@ func main() {
 	flag.StringVar(&cfg.rootDir, "rootDir", ".", "project root directory")
 	flag.BoolVar(&cfg.verifyOnly, "verifyOnly", false,
 		"don't automatically add headers, just verify all files")
+	flag.BoolVar(&cfg.temporalAddMode, "temporalAddMode", false, "add copyright for new file copied from temporal")
+	flag.BoolVar(&cfg.temporalModifyMode, "temporalModifyMode", false, "add copyright for existing file which has parts copied from temporal")
+	flag.StringVar(&cfg.filePaths, "filePaths", "", "comma separated list of files to run temporal license on")
 	flag.Parse()
 
+	if err := verifyCfg(cfg); err != nil {
+		fmt.Println(err)
+		os.Exit(-1)
+	}
+
 	task := newAddLicenseHeaderTask(&cfg)
 	if err := task.run(); err != nil {
 		fmt.Println(err)
 		os.Exit(-1)
 	}
 }
 
+func verifyCfg(cfg config) error {
+	if cfg.verifyOnly {
+		if cfg.temporalModifyMode || cfg.temporalAddMode {
+			return errors.New("invalid config, can only specify one of temporalAddMode, temporalModifyMode or verifyOnly")
+		}
+	}
+	if cfg.temporalAddMode && cfg.temporalModifyMode {
+		return errors.New("invalid config, can only specify temporalAddMode or temporalModifyMode")
+	}
+	if (cfg.temporalModifyMode || cfg.temporalAddMode) && len(cfg.filePaths) == 0 {
+		return errors.New("invalid config, when running in temporalAddMode or temporalModifyMode must provide filePaths")
+	}
+	return nil
+}
+
 func newAddLicenseHeaderTask(cfg *config) *addLicenseHeaderTask {
 	return &addLicenseHeaderTask{
 		config: cfg,
@@ -89,12 +122,28 @@ func (task *addLicenseHeaderTask) run() error {
 	if err != nil {
 		return fmt.Errorf("error reading license file, errr=%v", err.Error())
 	}
-
 	task.license, err = commentOutLines(string(data))
 	if err != nil {
 		return fmt.Errorf("copyright header failed to comment out lines, err=%v", err.Error())
 	}
-
+	if task.config.temporalAddMode {
+		task.license = fmt.Sprintf("%v\n\n%v\n\n%v", cadenceModificationHeader, temporalCopyright, task.license)
+	} else if task.config.temporalModifyMode {
+		task.license = fmt.Sprintf("%v\n\n%v\n\n%v", cadenceCopyright, temporalPartialCopyright, task.license)
+	}
+	if task.config.temporalModifyMode || task.config.temporalAddMode {
+		filePaths, fileInfos, err := getFilePaths(task.config.filePaths)
+		if err != nil {
+			return err
+		}
+		for i := 0; i < len(filePaths); i++ {
+			if err := task.handleFile(filePaths[i], fileInfos[i], nil); err != nil {
+				return err
+			}
+		}
+		return nil
+	}
+	task.license = fmt.Sprintf("%v\n\n%v\n\n%v", licenseHeaderPrefix, cadenceCopyright, task.license)
 	err = filepath.Walk(task.config.rootDir, task.handleFile)
 	if err != nil {
 		return fmt.Errorf("copyright header check failed, err=%v", err.Error())
@@ -120,7 +169,7 @@ func (task *addLicenseHeaderTask) handleFile(path string, fileInfo os.FileInfo,
 		return nil
 	}
 
-	if !strings.HasSuffix(fileInfo.Name(), ".go") {
+	if !strings.HasSuffix(fileInfo.Name(), ".go") && !strings.HasSuffix(fileInfo.Name(), ".proto") {
 		return nil
 	}
 
@@ -131,19 +180,20 @@ func (task *addLicenseHeaderTask) handleFile(path string, fileInfo os.FileInfo,
 		return err
 	}
 
-	scanner := bufio.NewScanner(f)
-	readLineSucc := scanner.Scan()
-	if !readLineSucc {
-		return fmt.Errorf("fail to read first line of file %v", path)
+	ok, err := hasCopyright(f)
+	if err != nil {
+		return err
 	}
-	firstLine := strings.TrimSpace(scanner.Text())
-	if err := scanner.Err(); err != nil {
+
+	if err := f.Close(); err != nil {
 		return err
 	}
-	f.Close()
 
-	if strings.Contains(firstLine, licenseHeaderPrefixOld) || strings.Contains(firstLine, licenseHeaderPrefix) {
-		return nil // file already has the copyright header
+	if ok {
+		if task.config.temporalModifyMode || task.config.temporalAddMode {
+			return fmt.Errorf("when running in temporalModifyMode or temporalAddMode please first remove existing license header: %v", path)
+		}
+		return nil
 	}
 
 	// at this point, src file is missing the header
@@ -163,6 +213,27 @@ func (task *addLicenseHeaderTask) handleFile(path string, fileInfo os.FileInfo,
 	return ioutil.WriteFile(path, []byte(task.license+string(data)), defaultFilePerms)
 }
 
+func hasCopyright(f *os.File) (bool, error) {
+	scanner := bufio.NewScanner(f)
+	lineSuccess := scanner.Scan()
+	if !lineSuccess {
+		return false, fmt.Errorf("fail to read first line of file %v", f.Name())
+	}
+	i := 0
+	for i < firstLinesToCheck && lineSuccess {
+		i++
+		line := strings.TrimSpace(scanner.Text())
+		if err := scanner.Err(); err != nil {
+			return false, err
+		}
+		if lineHasCopyright(line) {
+			return true, nil
+		}
+		lineSuccess = scanner.Scan()
+	}
+	return false, nil
+}
+
 func isFileAutogenerated(path string) bool {
 	return strings.HasPrefix(path, ".gen")
 }
@@ -189,3 +260,21 @@ func commentOutLines(str string) (string, error) {
 	}
 	return strings.Join(lines, ""), nil
 }
+
+func lineHasCopyright(line string) bool {
+	return strings.Contains(line, licenseHeaderPrefixOld) ||
+		strings.Contains(line, licenseHeaderPrefix)
+}
+
+func getFilePaths(filePaths string) ([]string, []os.FileInfo, error) {
+	paths := strings.Split(filePaths, ",")
+	var fileInfos []os.FileInfo
+	for _, p := range paths {
+		fileInfo, err := os.Stat(p)
+		if err != nil {
+			return nil, nil, err
+		}
+		fileInfos = append(fileInfos, fileInfo)
+	}
+	return paths, fileInfos, nil
+}

common/archiver/filestore/queryParser.go

@@ -18,7 +18,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-//go:generate mockgen -copyright_file ../../../LICENSE -package $GOPACKAGE -source queryParser.go -destination queryParser_mock.go -mock_names Interface=MockQueryParser
+//go:generate mockgen -package $GOPACKAGE -source queryParser.go -destination queryParser_mock.go -mock_names Interface=MockQueryParser
 
 package filestore
 

common/archiver/gcloud/queryParser.go

@@ -18,7 +18,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-//go:generate mockgen -copyright_file ../../../LICENSE -package $GOPACKAGE -source queryParser.go -destination queryParser_mock.go -mock_names Interface=MockQueryParser
+//go:generate mockgen -package $GOPACKAGE -source queryParser.go -destination queryParser_mock.go -mock_names Interface=MockQueryParser
 
 package gcloud
 

common/archiver/historyIterator.go

@@ -18,7 +18,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-//go:generate mockgen -copyright_file ../../LICENSE -package $GOPACKAGE -source $GOFILE -destination historyIterator_mock.go -self_package github.com/uber/cadence/common/archiver
+//go:generate mockgen -package $GOPACKAGE -source $GOFILE -destination historyIterator_mock.go -self_package github.com/uber/cadence/common/archiver
 
 package archiver
 

common/archiver/s3store/queryParser.go

@@ -18,7 +18,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-//go:generate mockgen -copyright_file ../../../LICENSE -package $GOPACKAGE -source queryParser.go -destination queryParser_mock.go -mock_names Interface=MockQueryParser
+//go:generate mockgen -package $GOPACKAGE -source queryParser.go -destination queryParser_mock.go -mock_names Interface=MockQueryParser
 
 package s3store