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add file lock for report index

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This commit is contained in:
c9s 2022-05-17 22:41:39 +08:00
parent 620e465bcf
commit 06e2902e5e
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GPG Key ID: 7385E7E464CB0A54
3 changed files with 23 additions and 1 deletions
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3
go.mod
View File

@ -64,6 +64,7 @@ require (
github.com/go-playground/universal-translator v0.17.0 // indirect
github.com/go-playground/validator/v10 v10.4.1 // indirect
github.com/go-test/deep v1.0.6 // indirect
github.com/gofrs/flock v0.8.1 // indirect
github.com/golang-sql/civil v0.0.0-20220223132316-b832511892a9 // indirect
github.com/golang-sql/sqlexp v0.0.0-20170517235910-f1bb20e5a188 // indirect
github.com/golang/protobuf v1.5.2 // indirect
@ -104,7 +105,7 @@ require (
go.uber.org/atomic v1.9.0 // indirect
golang.org/x/crypto v0.0.0-20220411220226-7b82a4e95df4 // indirect
golang.org/x/net v0.0.0-20220403103023-749bd193bc2b // indirect
golang.org/x/sys v0.0.0-20220422013727-9388b58f7150 // indirect
golang.org/x/sys v0.0.0-20220513210249-45d2b4557a2a // indirect
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 // indirect
golang.org/x/text v0.3.7 // indirect
golang.org/x/tools v0.1.9 // indirect

4
go.sum
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@ -160,6 +160,8 @@ github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0/go.mod h1:fyg78
github.com/go-test/deep v1.0.4/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3aSFNA=
github.com/go-test/deep v1.0.6 h1:UHSEyLZUwX9Qoi99vVwvewiMC8mM2bf7XEM2nqvzEn8=
github.com/go-test/deep v1.0.6/go.mod h1:QV8Hv/iy04NyLBxAdO9njL0iVPN1S4d/A3NVv1V36o8=
github.com/gofrs/flock v0.8.1 h1:+gYjHKf32LDeiEEFhQaotPbLuUXjY5ZqxKgXy7n59aw=
github.com/gofrs/flock v0.8.1/go.mod h1:F1TvTiK9OcQqauNUHlbJvyl9Qa1QvF/gOUDKA14jxHU=
github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe/go.mod h1:8vg3r2VgvsThLBIFL93Qb5yWzgyZWhEmBwUJWevAkK0=
@ -683,6 +685,8 @@ golang.org/x/sys v0.0.0-20211019181941-9d821ace8654/go.mod h1:oPkhp1MJrh7nUepCBc
golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220422013727-9388b58f7150 h1:xHms4gcpe1YE7A3yIllJXP16CMAGuqwO2lX1mTyyRRc=
golang.org/x/sys v0.0.0-20220422013727-9388b58f7150/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220513210249-45d2b4557a2a h1:N2T1jUrTQE9Re6TFF5PhvEHXHCguynGhKjWVsIUt5cY=
golang.org/x/sys v0.0.0-20220513210249-45d2b4557a2a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 h1:JGgROgKl9N8DuW20oFS5gxc+lE67/N3FcwmBPMe7ArY=
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=

17
pkg/backtest/report.go
View File

@ -10,6 +10,7 @@ import (
"time"
"github.com/fatih/color"
"github.com/gofrs/flock"
"github.com/c9s/bbgo/pkg/accounting/pnl"
"github.com/c9s/bbgo/pkg/bbgo"
@ -142,6 +143,22 @@ func LoadReportIndex(outputDirectory string) (*ReportIndex, error) {
func AddReportIndexRun(outputDirectory string, run Run) error {
// append report index
lockFile := filepath.Join(outputDirectory, ".report.lock")
fileLock := flock.New(lockFile)
err := fileLock.Lock()
if err != nil {
return err
}
defer func() {
if err := fileLock.Unlock(); err != nil {
log.WithError(err).Errorf("report index file lock error: %s", lockFile)
}
if err := os.Remove(lockFile) ; err != nil {
log.WithError(err).Errorf("can not remove lock file: %s", lockFile)
}
}()
reportIndex, err := LoadReportIndex(outputDirectory)
if err != nil {
return err