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fix(Required Args): fixes a bug where required args are not correctly accounted for

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Closes #343
This commit is contained in:
Kevin K 2015-11-13 09:34:12 -05:00
parent 31692c422c
commit f03b88a976
1 changed files with 12 additions and 44 deletions
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54
src/app/mod.rs
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@ -1669,27 +1669,6 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
};
let arg_slice: &str = arg_cow.borrow();
// we need to know if we're parsing a new argument, or the value of previous
// argument,
// perhaps one with multiple values such as --option val1 val2. We determine
// when to
// stop parsing multiple values by finding a '-'
// let new_arg = if arg_slice.starts_with("-") {
// // If we come to a single `-` it's a value, not a new argument...this happens
// // when
// // one wants to use the Unix standard of '-' to mean 'stdin'
// arg_slice.len() > 1
// } else {
// true
// };
// pos_only is determined later, and set true when a user uses the Unix
// standard of
// '--' to mean only positionals follow
// If the user passed `--` we don't check for subcommands, because the argument
// they
// may be trying to pass might match a subcommand name
let starts_new_arg = if arg_slice.starts_with("-") {
!(arg_slice.len() == 1)
} else {
@ -1766,10 +1745,13 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
}
}
let mut reqs_validated = false;
if let Some(a) = needs_val_of {
if let Some(o) = self.opts.iter().filter(|o| &o.name == &a).next() {
if (o.settings.is_set(&ArgSettings::Multiple) && self.required.is_empty()) ||
!o.settings.is_set(&ArgSettings::Multiple){
try!(self.validate_required(matcher));
reqs_validated = true;
if (o.settings.is_set(&ArgSettings::Multiple) && reqs_validated) ||
!o.settings.is_set(&ArgSettings::Multiple) {
let should_err = match matcher.values_of(o.name) {
Some(ref v) => v.is_empty(),
None => true,
@ -1781,6 +1763,7 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
));
}
} else {
debugln!("Required: {:#?}", self.required);
return Err(error_builder::MissingRequiredArgument(
&*self.get_required_from(&self.required, Some(matcher))
.iter()
@ -1799,18 +1782,13 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
}
}
if let Err(e) = self.validate_blacklist(matcher) {
return Err(e);
}
if let Err(e) = self.validate_num_args(matcher) {
return Err(e);
}
try!(self.validate_blacklist(matcher));
try!(self.validate_num_args(matcher));
matcher.usage(try!(self.create_usage(&[])));
if !(self.settings.is_set(&AppSettings::SubcommandsNegateReqs) && subcmd_name.is_some()) {
try!(self.validate_required(&matcher));
if !(self.settings.is_set(&AppSettings::SubcommandsNegateReqs) && subcmd_name.is_some()) &&
!reqs_validated {
try!(self.validate_required(matcher));
}
if let Some(sc_name) = subcmd_name {
use std::fmt::Write;
@ -2555,16 +2533,6 @@ impl<'a, 'v, 'ab, 'u, 'h, 'ar> App<'a, 'v, 'ab, 'u, 'h, 'ar> {
fn validate_arg<A>(&self, arg: &A, matcher: &mut ArgMatcher<'ar>) -> ClapResult<()>
where A: AnyArg<'ar> + Display {
// May not be needed since we can't get here without being an Arg of some type
//
// if arg.has_switch() && (!self.flags.iter().any(|f| f.name == arg.name()) &&
// !self.opts.iter().any(|f| f.name == arg.name())) {
// return Err(error_builder::InvalidArgument(
// &*format!("{}", arg),
// None,
// &*try!(self.create_current_usage(matcher))));
// }
// Ensure this arg isn't on the mutually excludes list
if self.blacklist.contains(&arg.name()) {
matcher.remove(arg.name());