Update shell completion to respect flag groups (#1659)
Signed-off-by: Marc Khouzam <marc.khouzam@montreal.ca> Co-authored-by: Marc Khouzam <marc.khouzam@montreal.ca>
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@ -172,3 +172,52 @@ func sortedKeys(m map[string]map[string]bool) []string {
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sort.Strings(keys)
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return keys
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}
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// enforceFlagGroupsForCompletion will do the following:
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// - when a flag in a group is present, other flags in the group will be marked required
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// - when a flag in a mutually exclusive group is present, other flags in the group will be marked as hidden
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// This allows the standard completion logic to behave appropriately for flag groups
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func (c *Command) enforceFlagGroupsForCompletion() {
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if c.DisableFlagParsing {
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return
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}
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flags := c.Flags()
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groupStatus := map[string]map[string]bool{}
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mutuallyExclusiveGroupStatus := map[string]map[string]bool{}
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c.Flags().VisitAll(func(pflag *flag.Flag) {
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processFlagForGroupAnnotation(flags, pflag, requiredAsGroup, groupStatus)
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processFlagForGroupAnnotation(flags, pflag, mutuallyExclusive, mutuallyExclusiveGroupStatus)
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})
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// If a flag that is part of a group is present, we make all the other flags
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// of that group required so that the shell completion suggests them automatically
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for flagList, flagnameAndStatus := range groupStatus {
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for _, isSet := range flagnameAndStatus {
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if isSet {
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// One of the flags of the group is set, mark the other ones as required
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for _, fName := range strings.Split(flagList, " ") {
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_ = c.MarkFlagRequired(fName)
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}
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}
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}
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}
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// If a flag that is mutually exclusive to others is present, we hide the other
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// flags of that group so the shell completion does not suggest them
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for flagList, flagnameAndStatus := range mutuallyExclusiveGroupStatus {
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for flagName, isSet := range flagnameAndStatus {
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if isSet {
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// One of the flags of the mutually exclusive group is set, mark the other ones as hidden
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// Don't mark the flag that is already set as hidden because it may be an
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// array or slice flag and therefore must continue being suggested
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for _, fName := range strings.Split(flagList, " ") {
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if fName != flagName {
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flag := c.Flags().Lookup(fName)
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flag.Hidden = true
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}
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}
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}
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}
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}
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}
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