8000 opts: ListOpts: implement cobra.SliceValue to fix shell completion by thaJeztah · Pull Request #6030 · docker/cli · GitHub
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opts: ListOpts: implement cobra.SliceValue to fix shell completion #6030

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Merged
merged 1 commit into from
Apr 23, 2025
Merged

opts: ListOpts: implement cobra.SliceValue to fix shell completion #6030

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10 changes: 10 additions & 0 deletions opts/opts.go 8000
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Original file line number Diff line number Diff line change
Expand Up @@ -84,6 +84,16 @@ func (opts *ListOpts) GetAll() []string {
return *opts.values
}

// GetSlice returns the values of slice.
//
// It implements [cobra.SliceValue] to allow shell completion to be provided
// multiple times.
//
// [cobra.SliceValue]: https://pkg.go.dev/github.com/spf13/cobra@v1.9.1#SliceValue
func (opts *ListOpts) GetSlice() []string {
return *opts.values
}

// GetAllOrEmpty returns the values of the slice
// or an empty slice when there are no values.
func (opts *ListOpts) GetAllOrEmpty() []string {
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10 changes: 6 additions & 4 deletions opts/opts_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -112,6 +112,7 @@ func TestMapOpts(t *testing.T) {
}
}

//nolint:gocyclo // ignore "cyclomatic complexity 17 is too high"
func TestListOptsWithoutValidator(t *testing.T) {
o := NewListOpts(nil)
err := o.Set("foo")
Expand Down Expand Up @@ -145,12 +146,13 @@ func TestListOptsWithoutValidator(t *testing.T) {
if o.String() != "[bar bar]" {
t.Errorf("%s != [bar bar]", o.String())
}
listOpts := o.GetAll()
if len(listOpts) != 2 || listOpts[0] != "bar" || listOpts[1] != "bar" {
if listOpts := o.GetAll(); len(listOpts) != 2 || listOpts[0] != "bar" || listOpts[1] != "bar" {
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A DeepEqual might make this easier to read, and avoid the nolint? The is is already imported anyway. I've not tried it, but something like ...

assert.Check(t, is.DeepEqual(o.GetAll(), []string{"bar", "bar"}))

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Ah, yes, I want to have a look at this file, as there's more to fix in that area, so for now I chose to "mostly" keep it as-is.

Will likely do some follow-ups to modernise tests in this package a bit.

t.Errorf("Expected [[bar bar]], got [%v]", listOpts)
}
mapListOpts := o.GetMap()
if len(mapListOpts) != 1 {
if listOpts := o.GetSlice(); len(listOpts) != 2 || listOpts[0] != "bar" || listOpts[1] != "bar" {
t.Errorf("Expected [[bar bar]], got [%v]", listOpts)
}
if mapListOpts := o.GetMap(); len(mapListOpts) != 1 {
t.Errorf("Expected [map[bar:{}]], got [%v]", mapListOpts)
}
}
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