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implement command aliases (#2236)

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See #2229
This commit is contained in:
Shivaram Lingamneni 2025-03-30 21:32:37 -04:00 • committed by GitHub
parent f5bb5afdd6
commit 7256d83ff0
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5 changed files with 55 additions and 7 deletions
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25
irc/config.go
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@ -609,6 +609,7 @@ type Config struct {
OverrideServicesHostname string `yaml:"override-services-hostname"`
MaxLineLen int `yaml:"max-line-len"`
SuppressLusers bool `yaml:"suppress-lusers"`
CommandAliases map[string]string `yaml:"command-aliases"`
}
API struct {
@ -1660,6 +1661,11 @@ func LoadConfig(filename string) (config *Config, err error) {
return nil, err
}
config.Server.CommandAliases, err = normalizeCommandAliases(config.Server.CommandAliases)
if err != nil {
return nil, err
}
// now that all postprocessing is complete, regenerate ISUPPORT:
err = config.generateISupport()
if err != nil {
@ -1875,3 +1881,22 @@ func (config *Config) loadMOTD() error {
}
return nil
}
func normalizeCommandAliases(aliases map[string]string) (normalizedAliases map[string]string, err error) {
if len(aliases) == 0 {
return nil, nil
}
normalizedAliases = make(map[string]string, len(aliases))
for alias, command := range aliases {
alias = strings.ToUpper(alias)
command = strings.ToUpper(command)
if _, found := Commands[alias]; found {
return nil, fmt.Errorf("Command alias `%s` collides with a real Ergo command", alias)
}
if _, found := Commands[command]; !found {
return nil, fmt.Errorf("Command alias `%s` mapped to non-existent Ergo command `%s`", alias, command)
}
normalizedAliases[alias] = command
}
return normalizedAliases, nil
}