diff -r baa4e7fdfd47 -r 3bd77c64bc74 rust/hg-cpython/src/filepatterns.rs
--- a/rust/hg-cpython/src/filepatterns.rs	Tue Jan 14 18:03:28 2020 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,133 +0,0 @@
-// filepatterns.rs
-//
-// Copyright 2019, Georges Racinet <gracinet@anybox.fr>,
-// Raphaël Gomès <rgomes@octobus.net>
-//
-// This software may be used and distributed according to the terms of the
-// GNU General Public License version 2 or any later version.
-
-//! Bindings for the `hg::filepatterns` module provided by the
-//! `hg-core` crate. From Python, this will be seen as `rustext.filepatterns`
-//! and can be used as replacement for the the pure `filepatterns` Python
-//! module.
-use crate::exceptions::{PatternError, PatternFileError};
-use cpython::{
-    PyBytes, PyDict, PyModule, PyObject, PyResult, PyTuple, Python, ToPyObject,
-};
-use hg::utils::files;
-use hg::{build_single_regex, read_pattern_file, LineNumber, PatternTuple};
-use std::path::PathBuf;
-
-/// Rust does not like functions with different return signatures.
-/// The 3-tuple version is always returned by the hg-core function,
-/// the (potential) conversion is handled at this level since it is not likely
-/// to have any measurable impact on performance.
-///
-/// The Python implementation passes a function reference for `warn` instead
-/// of a boolean that is used to emit warnings while parsing. The Rust
-/// implementation chooses to accumulate the warnings and propagate them to
-/// Python upon completion. See the `readpatternfile` function in `match.py`
-/// for more details.
-fn read_pattern_file_wrapper(
-    py: Python,
-    file_path: PyObject,
-    warn: bool,
-    source_info: bool,
-) -> PyResult<PyTuple> {
-    let bytes = file_path.extract::<PyBytes>(py)?;
-    let path = files::get_path_from_bytes(bytes.data(py));
-    match read_pattern_file(path, warn) {
-        Ok((patterns, warnings)) => {
-            if source_info {
-                let itemgetter = |x: &PatternTuple| {
-                    (PyBytes::new(py, &x.0), x.1, PyBytes::new(py, &x.2))
-                };
-                let results: Vec<(PyBytes, LineNumber, PyBytes)> =
-                    patterns.iter().map(itemgetter).collect();
-                return Ok((results, warnings_to_py_bytes(py, &warnings))
-                    .to_py_object(py));
-            }
-            let itemgetter = |x: &PatternTuple| PyBytes::new(py, &x.0);
-            let results: Vec<PyBytes> =
-                patterns.iter().map(itemgetter).collect();
-            Ok(
-                (results, warnings_to_py_bytes(py, &warnings))
-                    .to_py_object(py),
-            )
-        }
-        Err(e) => Err(PatternFileError::pynew(py, e)),
-    }
-}
-
-fn warnings_to_py_bytes(
-    py: Python,
-    warnings: &[(PathBuf, Vec<u8>)],
-) -> Vec<(PyBytes, PyBytes)> {
-    warnings
-        .iter()
-        .map(|(path, syn)| {
-            (
-                PyBytes::new(py, &files::get_bytes_from_path(path)),
-                PyBytes::new(py, syn),
-            )
-        })
-        .collect()
-}
-
-fn build_single_regex_wrapper(
-    py: Python,
-    kind: PyObject,
-    pat: PyObject,
-    globsuffix: PyObject,
-) -> PyResult<PyBytes> {
-    match build_single_regex(
-        kind.extract::<PyBytes>(py)?.data(py),
-        pat.extract::<PyBytes>(py)?.data(py),
-        globsuffix.extract::<PyBytes>(py)?.data(py),
-    ) {
-        Ok(regex) => Ok(PyBytes::new(py, &regex)),
-        Err(e) => Err(PatternError::pynew(py, e)),
-    }
-}
-
-pub fn init_module(py: Python, package: &str) -> PyResult<PyModule> {
-    let dotted_name = &format!("{}.filepatterns", package);
-    let m = PyModule::new(py, dotted_name)?;
-
-    m.add(py, "__package__", package)?;
-    m.add(
-        py,
-        "__doc__",
-        "Patterns files parsing - Rust implementation",
-    )?;
-    m.add(
-        py,
-        "build_single_regex",
-        py_fn!(
-            py,
-            build_single_regex_wrapper(
-                kind: PyObject,
-                pat: PyObject,
-                globsuffix: PyObject
-            )
-        ),
-    )?;
-    m.add(
-        py,
-        "read_pattern_file",
-        py_fn!(
-            py,
-            read_pattern_file_wrapper(
-                file_path: PyObject,
-                warn: bool,
-                source_info: bool
-            )
-        ),
-    )?;
-    m.add(py, "PatternError", py.get_type::<PatternError>())?;
-    let sys = PyModule::import(py, "sys")?;
-    let sys_modules: PyDict = sys.get(py, "modules")?.extract(py)?;
-    sys_modules.set_item(py, dotted_name, &m)?;
-
-    Ok(m)
-}