text template and white space suppression

[Bill Nixon]

I am trying to do some creative formatting using text template and wanted to see if there might be a better approach than what I implemented.

I have an array of structs, where each element has a Project and Task. The array is sorted by Project.

type DisplayTask struct {
 Project string
 Task string
}

I want to output all the tasks within a project without repeating the project name each time and I want the tasks to be indented, for example:

Project1 
  Task1
  Task2
Project2 
  Task3
Project3 
  Task4
  Task5

After much experimentation, I am using the following template and trying to determine if there is a way to avoid the printf and just have the indent as part of the template, but I can't figure out a way to do this and suppress white space (newline) from the if statement for the same project.

{{- $lastProject := "" -}}
{{ range . }}
{{- if (ne $lastProject .Project) -}}
{{ .Project }} {{ $lastProject = .Project }}
{{ end -}}
  {{ printf "  %s" .Task }}
{{ end -}}

Go Playground of the working code is at https://play.golang.org/p/3qqVW8lN-Ha

The challenge I had was suppressing white space after the end, but still allowing an indent via white space, so resorted to the printf.

Is there a better way?

[go je]

Maybe templating engines help..

here's one example.

https://github.com/gobuffalo/plush  

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