Tab auto-complete will always put a space after selected option

[gaetPax]

Currently, when selecting an option through auto-complete (implemented with ValueProvider), the selected option will always put a a space in the command line after the selected option. This is not always the desired behaviour, especially when autocompleting a file path (i.e. using the FileValueProvider). You would like to go deeper into the path and keep the cursor on the last character.

I think this occurs because the 'complete' field when instantiating the 'Candidate' Jline classes is always set to true in the 'CompleterAdapter' class: https://github.com/spring-projects/spring-shell/blob/master/spring-shell-core/src/main/java/org/springframework/shell/jline/JLineShellAutoConfiguration.java#L217

This behaviour should be parametrised.

[tincore]

This always true assignment seems to currently be at CompleterAutoConfiguration

        @Override
        public void complete(LineReader reader, ParsedLine line, List<Candidate> candidates) {
            CompletingParsedLine cpl = (line instanceof CompletingParsedLine) ? ((CompletingParsedLine) line) : t -> t;

            CompletionContext context = new CompletionContext(sanitizeInput(line.words()), line.wordIndex(), line.wordCursor(), null, null);

            List<CompletionProposal> proposals = shell.complete(context);
            proposals.stream()
                .map(p -> new Candidate(
                    p.dontQuote() ? p.value() : cpl.emit(p.value()).toString(),
                    p.displayText(),
                    p.category(),
                    p.description(),
                    null,
                    null,
                    true) // <-----  COMPLETE ALWAYS TRUE 
                )
                .forEach(candidates::add);
        }