Add the possibility to filter the get command with the go text/template package

[graugans]

This provides an easy way to manipulate the data retrieved via the get command:

Print all ports with some details

ovp8xx get  --format '{{$p := prefix "\n"}}{{ range $port, $details := .ports }}{{call $p}}[{{ $port }}
] state: {{ $details.state }},{{print "\t"}}type: {{ $details.info.features.type }},{{print "\t"}}PCIC Port: {{ $detail
s.data.pcicTCPPort }}{{ end }}'

[port0] state: RUN, type: 3D, PCIC Port: 50010
[port1] state: RUN, type: 3D, PCIC Port: 50011
[port2] state: RUN, type: 2D, PCIC Port: 50012
[port3] state: RUN, type: 2D, PCIC Port: 50013
[port6] state: RUN, type: IMU, PCIC Port: 50016

Modify the state of the ports

Set all ports to CONF

ovp8xx get  --format '{{ $state := "CONF" }}{ "ports": { {{$p := prefix ", "}}{{- range $key, $val := .ports -}}{{ if ne $key "port6" }}{{call $p}}"{{- $key -}}":{"state": "{{ $state }}"}{{end}}{{- end }} } }' 

The result looks like this:

{
  "ports": {
    "port0": {
      "state": "CONF"
    },
    "port1": {
      "state": "CONF"
    },
    "port2": {
      "state": "CONF"
    },
    "port3": {
      "state": "CONF"
    }
  }
}

This can be directly piped into the set command

ovp8xx get  --format '{{ $state := "CONF" }}{ "ports": { {{$p := prefix ", "}}{{- range $key, $val := .ports -}}{{ if ne $key "port6" }}{{call $p}}"{{- $key -}}":{"state": "{{ $state }}"}{{end}}{{- end }} } }'  | ovp8xx set

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 69 lines in your changes are missing coverage. Please review.

Project coverage is 31.35%. Comparing base (603ed91) to head (3c2d4d8).
Report is 2 commits behind head on v2.

Files	Patch %	Lines
cmd/ovp8xx/cmd/get.go	0.00%	39 Missing ⚠️
internal/versioninfo/version.go	0.00%	18 Missing ⚠️
cmd/ovp8xx/ovp8xx.go	0.00%	8 Missing ⚠️
cmd/ovp8xx/cmd/helper.go	0.00%	3 Missing ⚠️
cmd/ovp8xx/cmd/root.go	0.00%	1 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##               v2      #13      +/-   ##
==========================================
- Coverage   33.83%   31.35%   -2.49%     
==========================================
  Files          19       20       +1     
  Lines         857      925      +68     
==========================================
  Hits          290      290              
- Misses        566      634      +68     
  Partials        1        1              

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