[−][src]Function shellfn::execute_iter_panic_result

pub fn execute_iter_panic_result<T, TArg, TEnvKey, TEnvVal, TError, impl AsRef, impl IntoIterator, impl IntoIterator>(
    cmd: impl AsRef, 
    args: impl IntoIterator, 
    envs: impl IntoIterator
) -> impl Iterator<Item = Result<T, TError>> where
    T: FromStr,
    TArg: AsRef<OsStr>,
    TEnvKey: AsRef<OsStr>,
    TEnvVal: AsRef<OsStr>,
    TError: From<Error<<T as FromStr>::Err>>,
    impl AsRef: AsRef<OsStr>,
    impl IntoIterator: IntoIterator<Item = (TEnvKey, TEnvVal)>,
    impl IntoIterator: IntoIterator<Item = TArg>,
    <T as FromStr>::Err: Error,

Executes command with args and environment variables, parses output line by line

On invalid command: panic
On error exit code: break iterator
On parsing failure: yield error item
Possible errors: StdoutUnreadable (item error), ParsingError (item error)

Designed for

use shellfn::shell;
use std::error::Error;

#[shell]
fn command() -> impl Iterator<Item = Result<u32, Box<Error + 'static>>> {
    "echo 1; echo 2; echo 3"
}

assert_eq!(vec![1, 2, 3], command().map(Result::unwrap).collect::<Vec<_>>())