##// END OF EJS Templates
typing: add `from __future__ import annotations` to remaining source files...
typing: add `from __future__ import annotations` to remaining source files Most of these look newer than when the original imports referenced in the previous commit were dropped, so these weren't covered by the backout. These were found with: hg files mercurial hgext hgext3rd -I '**.py' -X '**/thirdparty' \ | xargs grep -L 'from __future__ import annotations' All of the `__init__.py` files that finds are empty, so those were ignored and the rest manually edited.

File last commit:

r52518:aa23b19e default
r52757:1c5810ce default
Show More
status.rs
324 lines | 10.2 KiB | application/rls-services+xml | RustLexer
// status.rs
//
// Copyright 2019, 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::status` module provided by the
//! `hg-core` crate. From Python, this will be seen as
//! `rustext.dirstate.status`.
use crate::{dirstate::DirstateMap, exceptions::FallbackError};
use cpython::{
exc::ValueError, ObjectProtocol, PyBool, PyBytes, PyErr, PyList, PyObject,
PyResult, PyTuple, Python, PythonObject, ToPyObject,
};
use hg::dirstate::status::StatusPath;
use hg::matchers::{
DifferenceMatcher, IntersectionMatcher, Matcher, NeverMatcher,
PatternMatcher, UnionMatcher,
};
use hg::{
matchers::{AlwaysMatcher, FileMatcher, IncludeMatcher},
parse_pattern_syntax_kind,
utils::{
files::{get_bytes_from_path, get_path_from_bytes},
hg_path::{HgPath, HgPathBuf},
},
BadMatch, DirstateStatus, IgnorePattern, PatternError, PatternFileWarning,
StatusError, StatusOptions,
};
use std::borrow::Borrow;
fn collect_status_path_list(py: Python, paths: &[StatusPath<'_>]) -> PyList {
collect_pybytes_list(py, paths.iter().map(|item| &*item.path))
}
/// This will be useless once trait impls for collection are added to `PyBytes`
/// upstream.
fn collect_pybytes_list(
py: Python,
iter: impl Iterator<Item = impl AsRef<HgPath>>,
) -> PyList {
let list = PyList::new(py, &[]);
for path in iter {
list.append(
py,
PyBytes::new(py, path.as_ref().as_bytes()).into_object(),
)
}
list
}
fn collect_bad_matches(
py: Python,
collection: &[(impl AsRef<HgPath>, BadMatch)],
) -> PyResult<PyList> {
let list = PyList::new(py, &[]);
let os = py.import("os")?;
let get_error_message = |code: i32| -> PyResult<_> {
os.call(
py,
"strerror",
PyTuple::new(py, &[code.to_py_object(py).into_object()]),
None,
)
};
for (path, bad_match) in collection.iter() {
let message = match bad_match {
BadMatch::OsError(code) => get_error_message(*code)?,
BadMatch::BadType(bad_type) => {
format!("unsupported file type (type is {})", bad_type)
.to_py_object(py)
.into_object()
}
};
list.append(
py,
(PyBytes::new(py, path.as_ref().as_bytes()), message)
.to_py_object(py)
.into_object(),
)
}
Ok(list)
}
fn handle_fallback(py: Python, err: StatusError) -> PyErr {
match err {
StatusError::Pattern(e) => {
let as_string = e.to_string();
log::trace!("Rust status fallback: `{}`", &as_string);
PyErr::new::<FallbackError, _>(py, &as_string)
}
e => PyErr::new::<ValueError, _>(py, e.to_string()),
}
}
pub fn status_wrapper(
py: Python,
dmap: DirstateMap,
matcher: PyObject,
root_dir: PyObject,
ignore_files: PyList,
check_exec: bool,
list_clean: bool,
list_ignored: bool,
list_unknown: bool,
collect_traversed_dirs: bool,
) -> PyResult<PyTuple> {
let bytes = root_dir.extract::<PyBytes>(py)?;
let root_dir = get_path_from_bytes(bytes.data(py));
let dmap: DirstateMap = dmap.to_py_object(py);
let mut dmap = dmap.get_inner_mut(py);
let ignore_files: PyResult<Vec<_>> = ignore_files
.iter(py)
.map(|b| {
let file = b.extract::<PyBytes>(py)?;
Ok(get_path_from_bytes(file.data(py)).to_owned())
})
.collect();
let ignore_files = ignore_files?;
// The caller may call `copymap.items()` separately
let list_copies = false;
let after_status = |res: Result<(DirstateStatus<'_>, _), StatusError>| {
let (status_res, warnings) =
res.map_err(|e| handle_fallback(py, e))?;
build_response(py, status_res, warnings)
};
let matcher = extract_matcher(py, matcher)?;
dmap.with_status(
&*matcher,
root_dir.to_path_buf(),
ignore_files,
StatusOptions {
check_exec,
list_clean,
list_ignored,
list_unknown,
list_copies,
collect_traversed_dirs,
},
after_status,
)
}
fn collect_kindpats(
py: Python,
matcher: PyObject,
) -> PyResult<Vec<IgnorePattern>> {
matcher
.getattr(py, "_kindpats")?
.iter(py)?
.map(|k| {
let k = k?;
let syntax = parse_pattern_syntax_kind(
k.get_item(py, 0)?.extract::<PyBytes>(py)?.data(py),
)
.map_err(|e| handle_fallback(py, StatusError::Pattern(e)))?;
let pattern = k.get_item(py, 1)?.extract::<PyBytes>(py)?;
let pattern = pattern.data(py);
let source = k.get_item(py, 2)?.extract::<PyBytes>(py)?;
let source = get_path_from_bytes(source.data(py));
let new = IgnorePattern::new(syntax, pattern, source);
Ok(new)
})
.collect()
}
/// Transform a Python matcher into a Rust matcher.
fn extract_matcher(
py: Python,
matcher: PyObject,
) -> PyResult<Box<dyn Matcher + Sync>> {
let tampered = matcher
.call_method(py, "was_tampered_with_nonrec", PyTuple::empty(py), None)?
.extract::<PyBool>(py)?
.is_true();
if tampered {
return Err(handle_fallback(
py,
StatusError::Pattern(PatternError::UnsupportedSyntax(
"Pattern matcher was tampered with!".to_string(),
)),
));
};
match matcher.get_type(py).name(py).borrow() {
"alwaysmatcher" => Ok(Box::new(AlwaysMatcher)),
"nevermatcher" => Ok(Box::new(NeverMatcher)),
"exactmatcher" => {
let files = matcher.call_method(
py,
"files",
PyTuple::new(py, &[]),
None,
)?;
let files: PyList = files.cast_into(py)?;
let files: PyResult<Vec<HgPathBuf>> = files
.iter(py)
.map(|f| {
Ok(HgPathBuf::from_bytes(
f.extract::<PyBytes>(py)?.data(py),
))
})
.collect();
let files = files?;
let file_matcher = FileMatcher::new(files)
.map_err(|e| PyErr::new::<ValueError, _>(py, e.to_string()))?;
Ok(Box::new(file_matcher))
}
"includematcher" => {
// Get the patterns from Python even though most of them are
// redundant with those we will parse later on, as they include
// those passed from the command line.
let ignore_patterns = collect_kindpats(py, matcher)?;
let matcher = IncludeMatcher::new(ignore_patterns)
.map_err(|e| handle_fallback(py, e.into()))?;
Ok(Box::new(matcher))
}
"unionmatcher" => {
let matchers: PyResult<Vec<_>> = matcher
.getattr(py, "_matchers")?
.iter(py)?
.map(|py_matcher| extract_matcher(py, py_matcher?))
.collect();
Ok(Box::new(UnionMatcher::new(matchers?)))
}
"intersectionmatcher" => {
let m1 = extract_matcher(py, matcher.getattr(py, "_m1")?)?;
let m2 = extract_matcher(py, matcher.getattr(py, "_m2")?)?;
Ok(Box::new(IntersectionMatcher::new(m1, m2)))
}
"differencematcher" => {
let m1 = extract_matcher(py, matcher.getattr(py, "_m1")?)?;
let m2 = extract_matcher(py, matcher.getattr(py, "_m2")?)?;
Ok(Box::new(DifferenceMatcher::new(m1, m2)))
}
"patternmatcher" => {
let patterns = collect_kindpats(py, matcher)?;
let matcher = PatternMatcher::new(patterns)
.map_err(|e| handle_fallback(py, e.into()))?;
Ok(Box::new(matcher))
}
e => Err(PyErr::new::<FallbackError, _>(
py,
format!("Unsupported matcher {}", e),
)),
}
}
fn build_response(
py: Python,
status_res: DirstateStatus,
warnings: Vec<PatternFileWarning>,
) -> PyResult<PyTuple> {
let modified = collect_status_path_list(py, &status_res.modified);
let added = collect_status_path_list(py, &status_res.added);
let removed = collect_status_path_list(py, &status_res.removed);
let deleted = collect_status_path_list(py, &status_res.deleted);
let clean = collect_status_path_list(py, &status_res.clean);
let ignored = collect_status_path_list(py, &status_res.ignored);
let unknown = collect_status_path_list(py, &status_res.unknown);
let unsure = collect_status_path_list(py, &status_res.unsure);
let bad = collect_bad_matches(py, &status_res.bad)?;
let traversed = collect_pybytes_list(py, status_res.traversed.iter());
let dirty = status_res.dirty.to_py_object(py);
let py_warnings = PyList::new(py, &[]);
for warning in warnings.iter() {
// We use duck-typing on the Python side for dispatch, good enough for
// now.
match warning {
PatternFileWarning::InvalidSyntax(file, syn) => {
py_warnings.append(
py,
(
PyBytes::new(py, &get_bytes_from_path(file)),
PyBytes::new(py, syn),
)
.to_py_object(py)
.into_object(),
);
}
PatternFileWarning::NoSuchFile(file) => py_warnings.append(
py,
PyBytes::new(py, &get_bytes_from_path(file)).into_object(),
),
}
}
Ok(PyTuple::new(
py,
&[
unsure.into_object(),
modified.into_object(),
added.into_object(),
removed.into_object(),
deleted.into_object(),
clean.into_object(),
ignored.into_object(),
unknown.into_object(),
py_warnings.into_object(),
bad.into_object(),
traversed.into_object(),
dirty.into_object(),
][..],
))
}