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Merge #2203

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2203: Fix suggestions of a subcommand shadowing valid input r=pksunkara a=ldm0



Co-authored-by: Donough Liu <ldm2993593805@163.com>
This commit is contained in:
bors[bot] 2020-11-07 13:01:56 +00:00 committed by GitHub
commit 2b68b0f0c7
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 75 additions and 78 deletions
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4
src/build/app/mod.rs
View file

@ -163,7 +163,7 @@ impl<'help> App<'help> {
.map(|a| a.0)
}
/// Iterate through the *visible* short aliases for this subcommand.
/// Iterate through the *visible* long aliases for this subcommand.
#[inline]
pub fn get_visible_long_flag_aliases(&self) -> impl Iterator<Item = &'help str> + '_ {
self.long_flag_aliases
@ -2090,7 +2090,7 @@ impl<'help> App<'help> {
let p = Path::new(name);
if let Some(f) = p.file_name() {
if let Some(s) = f.to_os_string().to_str() {
if let Some(s) = f.to_str() {
if self.bin_name.is_none() {
self.bin_name = Some(s.to_owned());
}

9
src/output/usage.rs
View file

@ -146,6 +146,7 @@ impl<'help, 'app, 'parser> Usage<'help, 'app, 'parser> {
if self.p.app.has_visible_subcommands() && incl_reqs
|| self.p.is_set(AS::AllowExternalSubcommands)
{
let placeholder = self.p.app.subcommand_placeholder.unwrap_or("SUBCOMMAND");
if self.p.is_set(AS::SubcommandsNegateReqs) || self.p.is_set(AS::ArgsNegateSubcommands)
{
if !self.p.is_set(AS::ArgsNegateSubcommands) {
@ -153,25 +154,25 @@ impl<'help, 'app, 'parser> Usage<'help, 'app, 'parser> {
usage.push_str(&*self.create_help_usage(false));
usage.push_str(" <");
usage.push_str(self.p.app.subcommand_placeholder.unwrap_or("SUBCOMMAND"));
usage.push_str(placeholder);
usage.push_str(">");
} else {
usage.push_str("\n ");
usage.push_str(&*name);
usage.push_str(" <");
usage.push_str(self.p.app.subcommand_placeholder.unwrap_or("SUBCOMMAND"));
usage.push_str(placeholder);
usage.push_str(">");
}
} else if self.p.is_set(AS::SubcommandRequired)
|| self.p.is_set(AS::SubcommandRequiredElseHelp)
{
usage.push_str(" <");
usage.push_str(self.p.app.subcommand_placeholder.unwrap_or("SUBCOMMAND"));
usage.push_str(placeholder);
usage.push_str(">");
} else {
usage.push_str(" [");
usage.push_str(self.p.app.subcommand_placeholder.unwrap_or("SUBCOMMAND"));
usage.push_str(placeholder);
usage.push_str("]");
}
}

70
src/parse/parser.rs
View file

@ -490,31 +490,6 @@ impl<'help, 'app> Parser<'help, 'app> {
// get the next value from the iterator
continue;
}
if !(self.is_set(AS::ArgsNegateSubcommands) && self.is_set(AS::ValidArgFound)
|| self.is_set(AS::AllowExternalSubcommands)
|| self.is_set(AS::InferSubcommands))
{
let cands = suggestions::did_you_mean(
&*arg_os.to_string_lossy(),
self.app.all_subcommand_names(),
);
if !cands.is_empty() {
let cands: Vec<_> =
cands.iter().map(|cand| format!("'{}'", cand)).collect();
return Err(ClapError::invalid_subcommand(
arg_os.to_string_lossy().to_string(),
cands.join(" or "),
self.app
.bin_name
.as_ref()
.unwrap_or(&self.app.name)
.to_string(),
Usage::new(self).create_usage_with_title(&[]),
self.app.color(),
));
}
}
}
let positional_count = self
@ -672,15 +647,28 @@ impl<'help, 'app> Parser<'help, 'app> {
external_subcommand = true;
break;
} else if !self.has_args()
|| self.is_set(AS::InferSubcommands) && self.has_subcommands()
{
} else {
// Start error processing
// If argument follows a `--`
if self.is_set(AS::TrailingValues) {
// If the arg matches a subcommand name, or any of its aliases (if defined)
if self.possible_subcommand(&arg_os).is_some() {
return Err(ClapError::unnecessary_double_dash(
arg_os.to_string_lossy().to_string(),
Usage::new(self).create_usage_with_title(&[]),
self.app.color(),
));
}
} else {
let cands = suggestions::did_you_mean(
&*arg_os.to_string_lossy(),
&arg_os.to_string_lossy(),
self.app.all_subcommand_names(),
);
// If the argument looks like a subcommand.
if !cands.is_empty() {
let cands: Vec<_> = cands.iter().map(|cand| format!("'{}'", cand)).collect();
let cands: Vec<_> =
cands.iter().map(|cand| format!("'{}'", cand)).collect();
return Err(ClapError::invalid_subcommand(
arg_os.to_string_lossy().to_string(),
cands.join(" or "),
@ -692,7 +680,11 @@ impl<'help, 'app> Parser<'help, 'app> {
Usage::new(self).create_usage_with_title(&[]),
self.app.color(),
));
} else {
}
// If the argument must be a subcommand.
if !self.has_args()
|| self.is_set(AS::InferSubcommands) && self.has_subcommands()
{
return Err(ClapError::unrecognized_subcommand(
arg_os.to_string_lossy().to_string(),
self.app
@ -703,23 +695,7 @@ impl<'help, 'app> Parser<'help, 'app> {
self.app.color(),
));
}
} else if self.is_set(AS::TrailingValues) {
// If argument followed by a `--`
if self.possible_subcommand(&arg_os).is_some() {
return Err(ClapError::unnecessary_double_dash(
arg_os.to_string_lossy().to_string(),
Usage::new(self).create_usage_with_title(&[]),
self.app.color(),
));
} else {
return Err(ClapError::unknown_argument(
arg_os.to_string_lossy().to_string(),
None,
Usage::new(self).create_usage_with_title(&[]),
self.app.color(),
));
}
} else {
return Err(ClapError::unknown_argument(
arg_os.to_string_lossy().to_string(),
None,

20
tests/subcommands.rs
View file

@ -433,3 +433,23 @@ fn subcommand_used_after_double_dash() {
true
));
}
#[test]
fn subcommand_after_argument() {
let m = App::new("myprog")
.arg(Arg::new("some_text"))
.subcommand(App::new("test"))
.get_matches_from(vec!["myprog", "teat", "test"]);
assert_eq!(m.value_of("some_text"), Some("teat"));
assert_eq!(m.subcommand().unwrap().0, "test");
}
#[test]
fn subcommand_after_argument_looks_like_help() {
let m = App::new("myprog")
.arg(Arg::new("some_text"))
.subcommand(App::new("test"))
.get_matches_from(vec!["myprog", "helt", "test"]);
assert_eq!(m.value_of("some_text"), Some("helt"));
assert_eq!(m.subcommand().unwrap().0, "test");
}