just/src/output.rs
2021-09-16 13:44:40 +00:00

35 lines
1016 B
Rust

use crate::common::*;
/// Run a command and return the data it wrote to stdout as a string
pub(crate) fn output(mut command: Command) -> Result<String, OutputError> {
match command.output() {
Ok(output) => {
if let Some(code) = output.status.code() {
if code != 0 {
return Err(OutputError::Code(code));
}
} else {
let signal = Platform::signal_from_exit_status(output.status);
return Err(match signal {
Some(signal) => OutputError::Signal(signal),
None => OutputError::Unknown,
});
}
match std::str::from_utf8(&output.stdout) {
Err(error) => Err(OutputError::Utf8(error)),
Ok(utf8) => Ok(
if utf8.ends_with('\n') {
&utf8[0..utf8.len() - 1]
} else if utf8.ends_with("\r\n") {
&utf8[0..utf8.len() - 2]
} else {
utf8
}
.to_owned(),
),
}
}
Err(io_error) => Err(OutputError::Io(io_error)),
}
}