Peter Götz petergtz
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petergtz
/ manifest.yml
Last active
February 18, 2016 11:26
— forked from drnic/manifest.yml
bosh manifest for redis to bosh-lite
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| compilation: | |
| cloud_properties: | |
| name: random | |
| network: cf1 | |
| reuse_compilation_vms: true | |
| workers: 6 | |
| director_uuid: 9bca5701-66c0-43ee-a4d0-64813b4b5ece | |
| jobs: | |
| - instances: 1 | |
| name: consul_z1 |
petergtz
/ bitsgo-deployment.yml
Created
December 14, 2016 00:42
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| compilation: | |
| cloud_properties: | |
| instance_type: m1.small | |
| network: default | |
| workers: 1 | |
| director_uuid: fb70f16a-4d6f-41f8-bc2e-0181a03dff18 | |
| jobs: | |
| # - instances: 0 | |
| # name: blobstore |
petergtz
/ CopyFile-correct.go
Last active
June 19, 2017 09:56
A CopyFile function in Go with correct error handling
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| func CopyFile(dstName, srcName string) (int64, error) { | |
| src, e := os.Open(srcName) | |
| if e != nil { | |
| return 0, errors.New("Error while opening file for reading. Caused by: " + e.Error()) | |
| } | |
| dst, e := os.Create(dstName) | |
| if e != nil { | |
| src.Close() | |
| return 0, errors.New("Error while opening file for writing. Caused by: " + e.Error()) |
petergtz
/ CopyFile-original.go
Last active
June 19, 2017 09:56
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| func CopyFile(dstName, srcName string) (written int64, err error) { | |
| src, err := os.Open(srcName) | |
| if err != nil { | |
| return | |
| } | |
| defer src.Close() | |
| dst, err := os.Create(dstName) | |
| if err != nil { | |
| return |
petergtz
/ safecloser.go
Created
June 19, 2017 10:00
a little helper for correct error handling in Go
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| type SafeCloser bool | |
| func (safeCloser *SafeCloser) Close(closer io.Closer) error { | |
| if *safeCloser { | |
| return nil | |
| } | |
| *safeCloser = true | |
| return closer.Close() | |
| } |
petergtz
/ copyfile-safecloser.go
Last active
June 19, 2017 10:35
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| func CopyFile(dstName, srcName string) (int64, error) { | |
| src, e := os.Open(srcName) | |
| if e != nil { | |
| return 0, errors.New("Error while opening file for reading. Caused by: " + e.Error()) | |
| } | |
| var safeSrcCloser multicloser.SafeCloser | |
| defer safeSrcCloser.Close(src) | |
| dst, e := os.Create(dstName) | |
| if e != nil { |
petergtz
/ gcp-snippet.go
Created
June 19, 2017 10:33
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| writer := gcpClient.Bucket("my-gcp-bucket").Object("my-object").NewWriter(context.TODO()) | |
| defer writer.Close() | |
| _, e := io.Copy(writer, src) | |
| if e != nil { | |
| return errors.Wrapf(e, "Path %v", path) | |
| } |
petergtz
/ softlayer_snippet.go
Created
July 31, 2017 20:41
Some Go code with a semantic error in the error handling
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| virtualGuestService, e := softlayerClient.GetSoftLayer_Virtual_Guest_Service() | |
| if e != nil { | |
| return cli.NewExitError(e.Error(), 1) | |
| } | |
| server := cliContext.GlobalString("server") | |
| port := cliContext.GlobalInt("port") | |
| if server == "" { | |
| return cli.NewExitError(e.Error(), 1) |
petergtz
/ softlayer_snippet_with_new_error_handling.go
Created
July 31, 2017 21:47
Some Go code with new error handling
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| virtualGuestService := softlayerClient.GetSoftLayer_Virtual_Guest_Service() or_on_error e { | |
| fail_with cli.NewExitError(e.Error(), 1) | |
| } | |
| server := cliContext.GlobalString("server") | |
| port := cliContext.GlobalInt("port") | |
| if server == "" { | |
| fail_with cli.NewExitError("server not provided as input flag", 1) | |
| } |
petergtz
/ error_handling_example.go
Last active
August 2, 2017 22:02
A simple example of a new error handling concept in Go
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| func Caller(arg int) { | |
| result := SomeFunction(arg) on_error e { | |
| fmt.Printf("Wrong input: %v", e) | |
| return | |
| } | |
| fmt.Printf("Result: %v", result) | |
| } | |
| func SomeFunction(arg int) int fails_with error { | |
| if arg == 42 { |
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