[−][src]Function shellfn_core::execute_parse_result
pub fn execute_parse_result<T, TArg, TEnvKey, TEnvVal, TError>(
cmd: impl AsRef<OsStr>,
args: impl IntoIterator<Item = TArg>,
envs: impl IntoIterator<Item = (TEnvKey, TEnvVal)>
) -> Result<T, TError> where
T: FromStr,
TArg: AsRef<OsStr>,
TEnvKey: AsRef<OsStr>,
TEnvVal: AsRef<OsStr>,
<T as FromStr>::Err: StdError,
TError: From<Error<<T as FromStr>::Err>>,
Executes command with args and environment variables, parses output
- On invalid command: return error
- On error exit code: return error
- On parsing failure: return error
- Possible errors: ProcessNotSpawned, WaitFailed, ProcessFailed, NonUtf8Stdout, ParsingError
Designed for
use shellfn::shell; use std::error::Error; #[shell] fn command() -> Result<u32, Box<Error>> { "echo -n 42" } assert_eq!(42, command().unwrap())