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https://issues.apache.org/jira/browse/GROOVY-6536?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16311941#comment-16311941
]
Raviteja Lokineni edited comment on GROOVY-6536 at 1/4/18 7:56 PM:
-------------------------------------------------------------------
I did a runtime override instead, see below. BTW, I feel this should be
available.
{code:java}
CliBuilder cliBuilder = new CliBuilder()
cliBuilder.usage = 'cli'
// Runtime override to use auto
cliBuilder.metaClass.usage = {->
cliBuilder.formatter.printHelp(
cliBuilder.writer,
cliBuilder.width,
cliBuilder.usage,
cliBuilder.header,
cliBuilder.options,
cliBuilder.formatter.defaultLeftPad,
cliBuilder.formatter.defaultDescPad,
cliBuilder.footer,
true
)
cliBuilder.writer.flush()
}{code}
Just for future reference to preserve the insertion order of options, I did
something like below.
{code:java}
// To preserve insertion order
cliBuilder.formatter.optionComparator = null
{code}
was (Author: bond_):
I did a runtime override instead, see below. BTW, I feel this should be
available.
{code:java}
CliBuilder cliBuilder = new CliBuilder()
cliBuilder.usage = 'cli'
// Runtime override to use auto
cliBuilder.metaClass.usage = {->
cliBuilder.formatter.printHelp(cliBuilder.writer, cliBuilder.width,
cliBuilder.usage, cliBuilder.header, cliBuilder.options,
cliBuilder.formatter.defaultLeftPad, cliBuilder.formatter.defaultDescPad,
cliBuilder.footer, true)
cliBuilder.writer.flush()
}
{code}
Just for future reference to preserve the insertion order of options, I did
something like below.
{code:java}
// To preserve insertion order
cliBuilder.formatter.optionComparator = null
{code}
> Support autoUsage in CliBuilder
> -------------------------------
>
> Key: GROOVY-6536
> URL: https://issues.apache.org/jira/browse/GROOVY-6536
> Project: Groovy
> Issue Type: Improvement
> Components: command line processing
> Affects Versions: 2.2.1
> Reporter: Björn Kautler
> Labels: CliBuilder
>
> I'd like to have an "autoUsage" property on the CliBuilder object that is
> "true" by default and is passed on to the HelpFormatter in the
> CliBuilder.usage() method.
> Currently to use autoUsage you have to do something like
> {code}
> def cliBuilder = new CliBuilder()
> cliBuilder.h longOpt: 'help', 'show help'
> cliBuilder.u longOpt: 'until', 'u option'
> def arguments
> class HelpFormatterCategory {
> static void printHelp(HelpFormatter self, PrintWriter pw, int width,
> String cmdLineSyntax, String header, Options options, int leftPad, int
> descPad, String footer) {
> self.printHelp(pw, width, cmdLineSyntax, header, options, leftPad,
> descPad, footer, true);
> }
> }
> use(HelpFormatterCategory) {
> arguments = cliBuilder.parse args
> if (!arguments) {
> System.exit 1
> }
> if (arguments.arguments()) {
> errPrintln 'error: Invalid arguments specified'
> cliBuilder.usage()
> System.exit 1
> }
> if (arguments.help) {
> cliBuilder.usage()
> System.exit 0
> }
> }
> if (arguments.until) {
> doStuff();
> }
> {code}
> if would be nicer to instead just do
> {code}
> def cliBuilder = new CliBuilder(autoUsage: true)
> cliBuilder.h longOpt: 'help', 'show help'
> cliBuilder.u longOpt: 'until', 'u option'
> def arguments = cliBuilder.parse args
> if (!arguments) {
> System.exit 1
> }
> if (arguments.arguments()) {
> errPrintln 'error: Invalid arguments specified'
> cliBuilder.usage()
> System.exit 1
> }
> if (arguments.help) {
> cliBuilder.usage()
> System.exit 0
> }
> if (arguments.until) {
> doStuff();
> }
> {code}
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