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Extract 'bad argument' method

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This commit is contained in:
Ben S 2015-11-15 00:02:39 +00:00
parent 8b9f074d63
commit 534d3c3fa5
1 changed files with 11 additions and 10 deletions
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21
src/options.rs
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@ -343,7 +343,7 @@ impl OptionSet for SortField {
"cr" | "created" => Ok(SortField::CreatedDate),
"none" => Ok(SortField::Unsorted),
"inode" => Ok(SortField::FileInode),
field => Err(SortField::none(field))
field => Err(Misfire::bad_argument("sort", field))
}
}
else {
@ -352,14 +352,6 @@ impl OptionSet for SortField {
}
}
impl SortField {
/// How to display an error when the word didn't match with anything.
fn none(field: &str) -> Misfire {
Misfire::InvalidOptions(getopts::Fail::UnrecognizedOption(format!("--sort {}", field)))
}
}
impl OptionSet for SizeFormat {
@ -418,7 +410,7 @@ impl OptionSet for TimeTypes {
"mod" | "modified" => Ok(TimeTypes { accessed: false, modified: true, created: false }),
"acc" | "accessed" => Ok(TimeTypes { accessed: true, modified: false, created: false }),
"cr" | "created" => Ok(TimeTypes { accessed: false, modified: false, created: true }),
otherwise => Err(Misfire::InvalidOptions(getopts::Fail::UnrecognizedOption(format!("--time {}", otherwise)))),
otherwise => Err(Misfire::bad_argument("time", otherwise)),
}
}
else {
@ -539,11 +531,20 @@ pub enum Misfire {
}
impl Misfire {
/// The OS return code this misfire should signify.
pub fn error_code(&self) -> i32 {
if let Misfire::Help(_) = *self { 2 }
else { 3 }
}
/// The Misfire that happens when an option gets given the wrong
/// argument. This has to use one of the `getopts` failure
/// variants--it’s meant to take just an option name, rather than an
/// option *and* an argument, but it works just as well.
pub fn bad_argument(option: &str, otherwise: &str) -> Misfire {
Misfire::InvalidOptions(getopts::Fail::UnrecognizedOption(format!("--{} {}", option, otherwise)))
}
}
impl fmt::Display for Misfire {