view rust/hg-cpython/src/lib.rs @ 44011:c627f1b2f3c3

rust-index: handle `MixedIndex` in `pyindex_to_graph`

On the long run we will want to implement the Graph trait directly in Rust, but
for now we take the path with the least amount of change to focus on the coming
persistent NodeMap code.

We test this new code through with the lazy ancestors code.

Differential Revision: https://phab.mercurial-scm.org/D7657

// lib.rs
//
// Copyright 2018 Georges Racinet <[e-mail]>
//
// This software may be used and distributed according to the terms of the
// GNU General Public License version 2 or any later version.

//! Python bindings of `hg-core` objects using the `cpython` crate.
//! Once compiled, the resulting single shared library object can be placed in
//! the `mercurial` package directly as `rustext.so` or `rustext.dll`.
//! It holds several modules, so that from the point of view of Python,
//! it behaves as the `cext` package.
//!
//! Example:
//!
//! ```text
//! >>> from mercurial.rustext import ancestor
//! >>> ancestor.__doc__
//! 'Generic DAG ancestor algorithms - Rust implementation'
//! ```

/// This crate uses nested private macros, `extern crate` is still needed in
/// 2018 edition.
#[macro_use]
extern crate cpython;

pub mod ancestors;
mod cindex;
mod conversion;
#[macro_use]
pub mod ref_sharing;
pub mod dagops;
pub mod dirstate;
pub mod discovery;
pub mod exceptions;
pub mod filepatterns;
pub mod parsers;
pub mod revlog;
pub mod utils;

py_module_initializer!(rustext, initrustext, PyInit_rustext, |py, m| {
    m.add(
        py,
        "__doc__",
        "Mercurial core concepts - Rust implementation",
    )?;

    let dotted_name: String = m.get(py, "__name__")?.extract(py)?;
    m.add(py, "ancestor", ancestors::init_module(py, &dotted_name)?)?;
    m.add(py, "dagop", dagops::init_module(py, &dotted_name)?)?;
    m.add(py, "discovery", discovery::init_module(py, &dotted_name)?)?;
    m.add(py, "dirstate", dirstate::init_module(py, &dotted_name)?)?;
    m.add(py, "revlog", revlog::init_module(py, &dotted_name)?)?;
    m.add(
        py,
        "filepatterns",
        filepatterns::init_module(py, &dotted_name)?,
    )?;
    m.add(
        py,
        "parsers",
        parsers::init_parsers_module(py, &dotted_name)?,
    )?;
    m.add(py, "GraphError", py.get_type::<exceptions::GraphError>())?;
    m.add(
        py,
        "PatternFileError",
        py.get_type::<exceptions::PatternFileError>(),
    )?;
    m.add(
        py,
        "PatternError",
        py.get_type::<exceptions::PatternError>(),
    )?;
    Ok(())
});

#[cfg(not(any(feature = "python27-bin", feature = "python3-bin")))]
#[test]
#[ignore]
fn libpython_must_be_linked_to_run_tests() {
    // stub function to tell that some tests wouldn't run
}