add-determinism 0.7.3

RPM buildroot helper to strip nondeterministic bits in files
Documentation 
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/* SPDX-License-Identifier: GPL-3.0-or-later */

#![allow(dead_code)]

use add_determinism::simplelog;

use anyhow::Result;
use executable_path::executable_path;
use std::ffi::OsStr;
use std::fs;
use std::path::{Path, PathBuf};
use std::process;
use std::sync::Once;
use tempfile::TempDir;

static INIT: Once = Once::new();

pub fn init() {
    INIT.call_once(|| {
        simplelog::init(log::LevelFilter::Debug, true).unwrap();
    })
}

pub fn empty_dir() -> Result<Box<TempDir>> {
    init();

    Ok(Box::new(TempDir::new()?))
}

pub fn prepare_dir(path: &str) -> Result<(Box<TempDir>, Box<PathBuf>)> {
    init();

    let dir = TempDir::new()?;
    let input_path = dir.path().join(Path::new(path).file_name().unwrap());
    fs::copy(path, &input_path)?;
    Ok((Box::new(dir), Box::new(input_path)))
}

pub fn invoke<I, S>(args: I) -> process::Output
where
    I: IntoIterator<Item = S>,
    S: AsRef<OsStr>,
{
    let exe = executable_path("add-det");
    process::Command::new(exe)
        .args(args)
        .env_remove("SOURCE_DATE_EPOCH")  // make sure that $SOURCE_DATE_EPOCH is
                                          // not inherited from the environment
        .output()
        .expect("failed to execute add-det")
}