aware-tectonic 0.16.9

A modernized, complete, embeddable TeX/LaTeX engine. Tectonic is forked from the XeTeX extension to the classic "Web2C" implementation of TeX and uses the TeXLive distribution of support files. This is the Aware Software fork of tectonic 0.16.9: identical to upstream except that its bundle crate (aware-tectonic-bundles) does not contact the network when the bundle cache is warm.
Documentation 
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// Copyright 2018 the Tectonic Project
// Licensed under the MIT License.

//! This test rig is a total hack to quickly exercise `src/driver.rs`.
//!
//! I should make it real, but I just want Codecov to stop complaining about
//! my test coverage. To re-use the `tex-outputs` test artifacts, the
//! ProcessingSessionBuilder will need to learn how to tell `xdvipdfmx` to
//! enable the reproducibility options used in the `tex-outputs` test rig.

use tectonic::{
    config::PersistentConfig, driver::ProcessingSessionBuilder,
    status::termcolor::TermcolorStatusBackend, status::ChatterLevel, test_util::TestBundle,
};

mod util;

// Keep these alphabetized.

#[test]
fn the_letter_a() {
    util::set_test_root();

    let _config = PersistentConfig::default();

    // The "Normal" chatter escapes the test rig's attempts to eat stdout ...
    let mut status = TermcolorStatusBackend::new(ChatterLevel::Minimal);

    let bundle = TestBundle::default();

    let tempdir = tempfile::Builder::new()
        .prefix("tectonic_driver_test")
        .tempdir()
        .unwrap();

    let mut pbuilder = ProcessingSessionBuilder::default();
    pbuilder
        .primary_input_path(util::test_path(&["tex-outputs", "the_letter_a.tex"]))
        .tex_input_name("the_letter_a.tex")
        .format_name("plain")
        .format_cache_path(util::test_path(&[]))
        .output_dir(tempdir.path())
        .bundle(Box::new(bundle));

    let mut session = pbuilder
        .create(&mut status)
        .expect("couldn't create processing session");

    session
        .run(&mut status)
        .expect("failed to execute processing session");
}