just/src/settings.rs
Casey Rodarmor e80bf34d9a
Add shell setting (#525)
Add a `set SETTING := VALUE` construct.

This construct is intended to be extended as needed with new settings,
but for now we're starting with `set shell := [COMMAND, ARG1, ...]`,
which allows setting the shell to use for recipe and backtick execution
in a justfile.

One of the primary reasons for adding this feature is to have a better
story on windows, where users are forced to scrounge up an `sh` binary
if they want to use `just`. This should allow them to use cmd.exe or
powershell in their justfiles, making just optionally dependency-free.
2019-11-10 23:17:47 -08:00

31 lines
630 B
Rust

use crate::common::*;
#[derive(Debug, PartialEq)]
pub(crate) struct Settings<'src> {
pub(crate) shell: Option<setting::Shell<'src>>,
}
impl<'src> Settings<'src> {
pub(crate) fn new() -> Settings<'src> {
Settings { shell: None }
}
pub(crate) fn shell_command(&self, default_shell: &str) -> Command {
if let Some(shell) = &self.shell {
let mut cmd = Command::new(shell.command.cooked.as_ref());
for argument in &shell.arguments {
cmd.arg(argument.cooked.as_ref());
}
cmd
} else {
let mut cmd = Command::new(default_shell);
cmd.arg("-cu");
cmd
}
}
}