base-layer/commandkit
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Discover help routes through intermediate aliases

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This commit is contained in:
Eric Rakestraw
2026-10-20 01:03:54 +00:00
parent 4ddf960836
commit bafd365115
5 changed files with 121 additions and 59 deletions
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62
help_view.go
View File

@@ -16,13 +16,12 @@ func (a *App) helpView(route routeResult, snapshot *routingSnapshot) commandmeta
if snapshot == nil {
return view
}
view.CommandAliases = routeHelpAliases(snapshot, route)
if view.Discovery {
view.CommandAliases = discoveryHelpAliases(snapshot, route)
view.FlagAliases = snapshot.discoveryFlags[route.discoveryPath.Key()].neutralRecords()
return view
}
view.FlagAliases = snapshot.flagAliases[route.canonicalPath.Key()].neutralRecords()
view.CommandAliases = routeHelpAliases(snapshot, route)
return view
}
@@ -30,9 +29,12 @@ func clonePath(path commandpath.Path) []string {
return append([]string(nil), path...)
}
func discoveryHelpAliases(snapshot *routingSnapshot, route routeResult) []commandmeta.CommandAlias {
func routeHelpAliases(snapshot *routingSnapshot, route routeResult) []commandmeta.CommandAlias {
if route.kind != routeDiscovery && len(route.canonicalPath) == 0 {
return append([]commandmeta.CommandAlias(nil), snapshot.commandAliases...)
}
bySource := make(map[string]commandmeta.CommandAlias)
for _, prefix := range []commandpath.Path{route.enteredPath, route.discoveryPath} {
for _, prefix := range snapshot.aliases.ResolutionPaths(route.enteredPath) {
for _, alias := range snapshot.commandAliases {
source := commandpath.FromTokens(alias.Source)
if len(source) <= len(prefix) || !source.HasPrefix(prefix) {
@@ -58,55 +60,3 @@ func discoveryHelpAliases(snapshot *routingSnapshot, route routeResult) []comman
}
return result
}
func routeHelpAliases(snapshot *routingSnapshot, route routeResult) []commandmeta.CommandAlias {
if len(route.canonicalPath) == 0 {
return append([]commandmeta.CommandAlias(nil), snapshot.commandAliases...)
}
node := traceCanonicalPath(snapshot.canonical, route.canonicalPath).exact
if node == nil {
return nil
}
entered := route.enteredPath
canonical := route.canonicalPath
bySource := make(map[string]commandmeta.CommandAlias)
add := func(base commandpath.Path, includeOnlyWhenReached bool) {
for _, alias := range snapshot.commandAliases {
source := commandpath.FromTokens(alias.Source)
if len(source) <= len(base) || !source.HasPrefix(base) {
continue
}
suffix := source[len(base):]
if includeOnlyWhenReached {
enteredSource := append(entered.Clone(), suffix...)
if !snapshot.aliases.Resolve(enteredSource).Equal(commandpath.FromTokens(alias.Target)) {
continue
}
}
key := commandpath.FromTokens(suffix).Key()
if _, exists := bySource[key]; exists {
continue
}
bySource[key] = commandmeta.CommandAlias{
Source: clonePath(suffix),
Target: append([]string(nil), alias.Target...),
}
}
}
add(entered, false)
if !entered.Equal(canonical) {
add(canonical, true)
}
keys := make([]string, 0, len(bySource))
for key := range bySource {
keys = append(keys, key)
}
sort.Strings(keys)
result := make([]commandmeta.CommandAlias, 0, len(keys))
for _, key := range keys {
result = append(result, bySource[key])
}
return result
}