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du: reduce the complexity by moving the time option mgmt into a function

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This commit is contained in:
Sylvestre Ledru
2023-04-13 13:38:27 +02:00
parent f08b8dab23
commit f475a36204
1 changed files with 18 additions and 14 deletions
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src/uu/du/src/du.rs
+18 -14
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@@ -625,20 +625,11 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
if matches.contains_id(options::TIME) {
let tm = {
let secs = {
match matches.get_one::<String>(options::TIME) {
Some(s) => match s.as_str() {
"ctime" | "status" => stat.modified,
"access" | "atime" | "use" => stat.accessed,
"birth" | "creation" => stat
.created
.ok_or_else(|| DuError::InvalidTimeArg(s.into()))?,
// below should never happen as clap already restricts the values.
_ => unreachable!("Invalid field for --time"),
},
None => stat.modified,
}
};
let secs = matches
.get_one::<String>(options::TIME)
.map(|s| get_time_secs(s, &stat))
.transpose()?
.unwrap_or(stat.modified);
DateTime::<Local>::from(UNIX_EPOCH + Duration::from_secs(secs))
};
if !summarize || index == len - 1 {
@@ -676,6 +667,19 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
Ok(())
}
fn get_time_secs(s: &str, stat: &Stat) -> std::result::Result<u64, DuError> {
let secs = match s {
"ctime" | "status" => stat.modified,
"access" | "atime" | "use" => stat.accessed,
"birth" | "creation" => stat
.created
.ok_or_else(|| DuError::InvalidTimeArg(s.into()))?,
// below should never happen as clap already restricts the values.
_ => unreachable!("Invalid field for --time"),
};
Ok(secs)
}
fn parse_time_style(s: Option<&str>) -> UResult<&str> {
match s {
Some(s) => match s {