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Disable slice flag separator #1588

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merged 4 commits into from Nov 18, 2022
Merged

Disable slice flag separator #1588

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0f8707a
Allow disabling SliceFlag separator altogether
feedmeapples Nov 11, 2022
377947f
replace test hardcode with defaultSliceFlagSeparator
feedmeapples Nov 11, 2022
ceb75a1
godoc
feedmeapples Nov 11, 2022
9b0812c
Update godoc v2 spacing
feedmeapples Nov 16, 2022
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4 changes: 4 additions & 0 deletions app.go
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Expand Up @@ -107,6 +107,8 @@ type App struct {
CustomAppHelpTemplate string
// SliceFlagSeparator is used to customize the separator for SliceFlag, the default is ","
SliceFlagSeparator string
// DisableSliceFlagSeparator is used to disable SliceFlagSeparator, the default is false
DisableSliceFlagSeparator bool
// Boolean to enable short-option handling so user can combine several
// single-character bool arguments into one
// i.e. foobar -o -v -> foobar -ov
Expand Down Expand Up @@ -264,6 +266,8 @@ func (a *App) Setup() {
if len(a.SliceFlagSeparator) != 0 {
defaultSliceFlagSeparator = a.SliceFlagSeparator
}

disableSliceFlagSeparator = a.DisableSliceFlagSeparator
}

func (a *App) newRootCommand() *Command {
Expand Down
9 changes: 8 additions & 1 deletion flag.go
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Expand Up @@ -15,7 +15,10 @@ import (

const defaultPlaceholder = "value"

var defaultSliceFlagSeparator = ","
var (
defaultSliceFlagSeparator = ","
disableSliceFlagSeparator = false
)

var (
slPfx = fmt.Sprintf("sl:::%d:::", time.Now().UTC().UnixNano())
Expand Down Expand Up @@ -380,5 +383,9 @@ func flagFromEnvOrFile(envVars []string, filePath string) (value string, fromWhe
}

func flagSplitMultiValues(val string) []string {
if disableSliceFlagSeparator {
return []string{val}
}

return strings.Split(val, defaultSliceFlagSeparator)
}
17 changes: 17 additions & 0 deletions flag_test.go
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Expand Up @@ -3402,3 +3402,20 @@ func TestCustomizedSliceFlagSeparator(t *testing.T) {
}
}
}

func TestFlagSplitMultiValues_Disabled(t *testing.T) {
disableSliceFlagSeparator = true
defer func() {
disableSliceFlagSeparator = false
}()

opts := []string{"opt1", "opt2", "opt3,op", "opt4"}
ret := flagSplitMultiValues(strings.Join(opts, defaultSliceFlagSeparator))
if len(ret) != 1 {
t.Fatalf("failed to disable split slice flag, want: 1, but got: %d", len(ret))
}

if ret[0] != strings.Join(opts, defaultSliceFlagSeparator) {
t.Fatalf("failed to disable split slice flag, want: %s, but got: %s", strings.Join(opts, defaultSliceFlagSeparator), ret[0])
}
}
2 changes: 2 additions & 0 deletions godoc-current.txt
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Expand Up @@ -318,6 +318,8 @@ type App struct {
CustomAppHelpTemplate string
// SliceFlagSeparator is used to customize the separator for SliceFlag, the default is ","
SliceFlagSeparator string
// DisableSliceFlagSeparator is used to disable SliceFlagSeparator, the default is false
DisableSliceFlagSeparator bool
// Boolean to enable short-option handling so user can combine several
// single-character bool arguments into one
// i.e. foobar -o -v -> foobar -ov
Expand Down
2 changes: 2 additions & 0 deletions testdata/godoc-v2.x.txt
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Expand Up @@ -318,6 +318,8 @@ type App struct {
CustomAppHelpTemplate string
// SliceFlagSeparator is used to customize the separator for SliceFlag, the default is ","
SliceFlagSeparator string
// DisableSliceFlagSeparator is used to disable SliceFlagSeparator, the default is false
DisableSliceFlagSeparator bool
// Boolean to enable short-option handling so user can combine several
// single-character bool arguments into one
// i.e. foobar -o -v -> foobar -ov
Expand Down