Module palaver::env

Inspect the process's environment.

This library goes further than the stdlib to get arguments and environment variables, including reading from /proc/self/cmdline and similar.

This is helpful for library crates that don't want to require them to be passed down to the library by the user; particularly if called from a non-Rust application where the Rust stdlib hasn't had a chance to capture them from the int main (int argc, char *argv[]) invocation thus breaking std::env::args().

Examples

use std::io::Read;
use palaver::env::exe;

let mut current_binary = vec![];
exe().unwrap().read_to_end(&mut current_binary).unwrap();
println!("Current binary is {} bytes long!", current_binary.len());

use palaver::env;

pub fn my_library_func() {
	let args = env::args();
	let vars = env::vars();
}

Functions

args	Returns the arguments which this program was started with (normally passed via the command line).
args_os	Returns the arguments which this program was started with (normally passed via the command line).
exe	Returns a File of the currently running executable. Akin to fd::File::open("/proc/self/exe") on Linux.
exe_path	Returns the path of the currently running executable. On Linux this is /proc/self/exe.
vars	Returns a vector of (variable, value) pairs of strings, for all the environment variables of the current process.
vars_os	Returns a vector of (variable, value) pairs of OS strings, for all the environment variables of the current process.