Add printenv
applet
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@ -31,6 +31,7 @@ mod mountpoint;
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mod mv;
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mod nologin;
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mod nproc;
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mod printenv;
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mod pwd;
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mod rev;
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mod rm;
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@ -85,6 +86,7 @@ pub fn get(name: &str) -> Option<Box<dyn Cmd>> {
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"mountpoint" => Some(Box::new(mountpoint::Mountpoint::default())),
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"nologin" => Some(Box::new(nologin::Nologin::default())),
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"nproc" => Some(Box::new(nproc::Nproc::default())),
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"printenv" => Some(Box::new(printenv::Printenv::default())),
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"pwd" => Some(Box::new(pwd::Pwd::default())),
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"rev" => Some(Box::new(rev::Rev::default())),
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"rm" => Some(Box::new(rm::Rm::default())),
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@ -101,7 +103,7 @@ pub fn get(name: &str) -> Option<Box<dyn Cmd>> {
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}
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}
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pub static COMMANDS: [&str; 35] = [
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pub static COMMANDS: [&str; 36] = [
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"base32",
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"base64",
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"basename",
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@ -125,6 +127,7 @@ pub static COMMANDS: [&str; 35] = [
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"mountpoint",
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"nologin",
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"nproc",
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"printenv",
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"pwd",
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"rev",
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"rm",
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56
src/cmd/printenv/mod.rs
Normal file
56
src/cmd/printenv/mod.rs
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@ -0,0 +1,56 @@
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use std::{env, io};
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use super::Cmd;
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use clap::{Arg, ArgAction, Command};
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#[derive(Debug, Default)]
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pub struct Printenv;
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impl Cmd for Printenv {
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fn cli(&self) -> clap::Command {
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Command::new("printenv")
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.about("print all or part of environment")
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.author("Nathan Fisher")
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.version(env!("CARGO_PKG_VERSION"))
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.args([
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Arg::new("null")
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.short('0')
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.long("null")
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.help("end each output line with NUL, not newline")
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.action(ArgAction::SetTrue),
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Arg::new("var")
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.value_name("VARIABLE")
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.num_args(1..)
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.required(false),
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])
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}
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fn run(&self, matches: Option<&clap::ArgMatches>) -> Result<(), Box<dyn std::error::Error>> {
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let Some(matches) = matches else {
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return Err(io::Error::new(io::ErrorKind::Other, "no input").into());
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};
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if let Some(vars) = matches.get_many::<String>("var") {
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for var in vars {
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let val = env::var(var)?;
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if matches.get_flag("null") {
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print!("{var}={val}\0");
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} else {
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println!("{var}={val}");
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}
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}
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} else {
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env::vars().for_each(|(var, val)| {
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if matches.get_flag("null") {
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print!("{var}={val}\0");
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} else {
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println!("{var}={val}");
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}
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});
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}
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Ok(())
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}
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fn path(&self) -> Option<crate::Path> {
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Some(crate::Path::UsrBin)
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}
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}
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