Fish completion presents only the canonical name of suggested command.

Author: bittrance

fish.go

@@ -61,7 +61,7 @@ func (cmd *Command) prepareFishCommands(commands []*Command, previousCommands []
 				"complete -x -c %s -n '%s' -a '%s'",
 				cmd.Name,
 				cmd.fishSubcommandHelper(previousCommands, commands),
-				strings.Join(command.Names(), " "),
+				command.Name,
 			)
 
 			if command.Usage != "" {

testdata/expected-fish-full.fish

@@ -14,17 +14,17 @@ complete -c greet -n '__fish_greet_no_subcommand' -f -l flag -s fl -s f -r
 complete -c greet -n '__fish_greet_no_subcommand' -f -l another-flag -s b -d 'another usage text'
 complete -c greet -n '__fish_greet_no_subcommand' -l logfile -r
 complete -c greet -n '__fish_greet_no_subcommand' -l foofile -r
-complete -x -c greet -n '__fish_greet_no_subcommand' -a 'config c' -d 'another usage test'
+complete -x -c greet -n '__fish_greet_no_subcommand' -a 'config' -d 'another usage test'
 complete -c greet -n '__fish_seen_subcommand_from config c' -l flag -s fl -s f -r
 complete -c greet -n '__fish_seen_subcommand_from config c' -f -l another-flag -s b -d 'another usage text'
-complete -x -c greet -n '__fish_seen_subcommand_from config c; and not __fish_seen_subcommand_from sub-config s ss' -a 'sub-config s ss' -d 'another usage test'
+complete -x -c greet -n '__fish_seen_subcommand_from config c; and not __fish_seen_subcommand_from sub-config s ss' -a 'sub-config' -d 'another usage test'
 complete -c greet -n '__fish_seen_subcommand_from sub-config s ss' -f -l sub-flag -s sub-fl -s s -r
 complete -c greet -n '__fish_seen_subcommand_from sub-config s ss' -f -l sub-command-flag -s s -d 'some usage text'
-complete -x -c greet -n '__fish_greet_no_subcommand' -a 'info i in' -d 'retrieve generic information'
+complete -x -c greet -n '__fish_greet_no_subcommand' -a 'info' -d 'retrieve generic information'
 complete -x -c greet -n '__fish_greet_no_subcommand' -a 'some-command'
 complete -c greet -n '__fish_seen_subcommand_from hidden-command' -f -l completable
-complete -x -c greet -n '__fish_greet_no_subcommand' -a 'usage u' -d 'standard usage text'
+complete -x -c greet -n '__fish_greet_no_subcommand' -a 'usage' -d 'standard usage text'
 complete -c greet -n '__fish_seen_subcommand_from usage u' -l flag -s fl -s f -r
 complete -c greet -n '__fish_seen_subcommand_from usage u' -f -l another-flag -s b -d 'another usage text'
-complete -x -c greet -n '__fish_seen_subcommand_from usage u; and not __fish_seen_subcommand_from sub-usage su' -a 'sub-usage su' -d 'standard usage text'
+complete -x -c greet -n '__fish_seen_subcommand_from usage u; and not __fish_seen_subcommand_from sub-usage su' -a 'sub-usage' -d 'standard usage text'
 complete -c greet -n '__fish_seen_subcommand_from sub-usage su' -f -l sub-command-flag -s s -d 'some usage text'