Yaml: Customize yaml.Marshal wrap behavior

[nicksnyder]

The yaml.Marshal appears to split long string values on to multiple lines. Is there any way to prevent this from happening?

[bgveenstra]

The added linebreaks were also unexpected for me (and causes the output not to work, in my case).

Also found an earlier report about this behavior being unexpected (https://github.com/go-yaml/yaml/issues/348).

The 80-character limit is set on the Encoder's emitter: https://github.com/go-yaml/yaml/blob/7c97801ccf41d5273de9e22c8b2af6860c7703a2/emitterc.go#L286

I didn't see a way through the API to modify these settings, but I would definitely be excited to use one.

[DoubleLuck]

This feature confuses me too. I use this package to modify ConfigMap of k8s, but after an 'Unmarshal' and a 'Marshal' operations, the configmap appears more differences than I except. Hope for some APIs to define these settings.

[Aisuko]

The same issue with you guys. I Marshal the data into a yaml text file, then the function generates an unexpected line break in the marshaled bytes array like below:

Input:

ssh_authorized_keys:- ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC2Sx8dhcxM16zUIJGUsoHvium2ezzXL5F5obBvWd441BSau1XTDVdO3zOchF3mWvYX5q4JT1CF4GntvM1vc16acuVmkzsjsDe3+4uVPPzJps01vDxVeV1vRM53P2deCUnrFJ48CvrPisyXSOCtUCRFC1pPdvVAnOyTkzboQkCEbt6551bXF2nTnZu7XOSdzAKj+YLIRNf/ecr4hJi9xW7Q4N6gP0C+zn/KjvFQ0QSN5t8Cpbg4ri7uR2Vd4a0ccyJ5TQLRJ3EtAvuVZK3CeY0B3/XlD31cLMSFgLpWDBU2p9OC27Lc3grcYL2kN1A1HsV5AjBWRfTnFuCcOQ7MNdjJ root@ip-xxx-xx-xx-xx

Output:

ssh_authorized_keys:- ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC2Sx8dhcxM16zUIJGUsoHvium2ezzXL5F5obBvWd441BSau1XTDVdO3zOchF3mWvYX5q4JT1CF4GntvM1vc16acuVmkzsjsDe3+4uVPPzJps01vDxVeV1vRM53P2deCUnrFJ48CvrPisyXSOCtUCRFC1pPdvVAnOyTkzboQkCEbt6551bXF2nTnZu7XOSdzAKj+YLIRNf/ecr4hJi9xW7Q4N6gP0C+zn/KjvFQ0QSN5t8Cpbg4ri7uR2Vd4a0ccyJ5TQLRJ3EtAvuVZK3CeY0B3/XlD31cLMSFgLpWDBU2p9OC27Lc3grcYL2kN1A1HsV5AjBWRfTnFuCcOQ7MNdjJ
  root@ip-xxx-xx-xx-xx

Is there any standard length about the best_width for golang's yaml?

Link issue 166

About yml Folded Style

[laverya]

Since this is getting mentioned, v2.3.0 fixes this by setting the default line length limit to -1 or infinity - see https://github.com/go-yaml/yaml/pull/571