anki/build/runner/src/run.rs
Damien Elmes 17b33f8298
Use Rust nightly for formatting (#2348)
* Support specifying a working dir to a build command

* Use nightly for formatting

* Pass valid TERM in from environment

Rustfmt depends on a valid setting, and not just the var to be non-empty.

* Wrap comment
2023-01-25 23:35:53 +10:00

99 lines
2.8 KiB
Rust

// Copyright: Ankitects Pty Ltd and contributors
// License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
use std::io::ErrorKind;
use std::process::Command;
use std::process::Output;
use clap::Args;
#[derive(Args)]
pub struct RunArgs {
#[arg(long)]
stamp: Option<String>,
#[arg(long, value_parser = split_env)]
env: Vec<(String, String)>,
#[arg(long)]
cwd: Option<String>,
#[arg(trailing_var_arg = true)]
args: Vec<String>,
}
/// Run one or more commands separated by `&&`, optionally stamping or setting
/// extra env vars.
pub fn run_commands(args: RunArgs) {
let commands = split_args(args.args);
for command in commands {
run_silent(&mut build_command(command, &args.env, &args.cwd));
}
if let Some(stamp_file) = args.stamp {
std::fs::write(stamp_file, b"").expect("unable to write stamp file");
}
}
fn split_env(s: &str) -> Result<(String, String), std::io::Error> {
if let Some((k, v)) = s.split_once('=') {
Ok((k.into(), v.into()))
} else {
Err(std::io::Error::new(ErrorKind::Other, "invalid env var"))
}
}
fn build_command(
command_and_args: Vec<String>,
env: &[(String, String)],
cwd: &Option<String>,
) -> Command {
let mut command = Command::new(&command_and_args[0]);
command.args(&command_and_args[1..]);
for (k, v) in env {
command.env(k, v);
}
if let Some(cwd) = cwd {
command.current_dir(cwd);
}
command
}
/// If multiple commands have been provided separated by &&, split them up.
fn split_args(args: Vec<String>) -> Vec<Vec<String>> {
let mut commands = vec![];
let mut current_command = vec![];
for arg in args.into_iter() {
if arg == "&&" {
commands.push(current_command);
current_command = vec![];
} else {
current_command.push(arg)
}
}
if !current_command.is_empty() {
commands.push(current_command)
}
commands
}
/// Log stdout/stderr and exit if command failed; return output on success.
/// If OUTPUT_SUCCESS=1 is defined, output will be shown on success.
pub fn run_silent(command: &mut Command) -> Output {
let output = command
.output()
.unwrap_or_else(|e| panic!("failed to run command: {:?}: {e}", command));
if !output.status.success() {
println!(
"Command failed: \n{}\n{}",
String::from_utf8_lossy(&output.stdout),
String::from_utf8_lossy(&output.stderr),
);
std::process::exit(output.status.code().unwrap_or(1));
}
if std::env::var("OUTPUT_SUCCESS").is_ok() {
println!(
"{}{}",
String::from_utf8_lossy(&output.stdout),
String::from_utf8_lossy(&output.stderr)
);
}
output
}