Mercurial > public > mercurial-scm > hg-stable

annotate rust/hg-cpython/src/dagops.rs @ 44383:cd43cae79f25

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
rebase: remove some now-unused parent arguments Differential Revision: https://phab.mercurial-scm.org/D7829
author Martin von Zweigbergk <martinvonz@google.com>
date Fri, 10 Jan 2020 17:20:12 -0800
parents f98f0e3ddaa1
children 8b8054b8e5a7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
41705
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
1 // dagops.rs
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
2 //
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
3 // Copyright 2019 Georges Racinet <georges.racinet@octobus.net>
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
4 //
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
5 // This software may be used and distributed according to the terms of the
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
6 // GNU General Public License version 2 or any later version.
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
7
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
8 //! Bindings for the `hg::dagops` module provided by the
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
9 //! `hg-core` package.
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
10 //!
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
11 //! From Python, this will be seen as `mercurial.rustext.dagop`
43951
f98f0e3ddaa1 rust-index: add a function to convert PyObject index for hg-core
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43269
diff changeset
12 use crate::{conversion::rev_pyiter_collect, exceptions::GraphError};
41705
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
13 use cpython::{PyDict, PyModule, PyObject, PyResult, Python};
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
14 use hg::dagops;
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
15 use hg::Revision;
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
16 use std::collections::HashSet;
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
17
43951
f98f0e3ddaa1 rust-index: add a function to convert PyObject index for hg-core
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43269
diff changeset
18 use crate::revlog::pyindex_to_graph;
f98f0e3ddaa1 rust-index: add a function to convert PyObject index for hg-core
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43269
diff changeset
19
41705
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
20 /// Using the the `index`, return heads out of any Python iterable of Revisions
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
21 ///
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
22 /// This is the Rust counterpart for `mercurial.dagop.headrevs`
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
23 pub fn headrevs(
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
24 py: Python,
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
25 index: PyObject,
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
26 revs: PyObject,
43269
33fe96a5c522 rust-cpython: removed now useless py_set() conversion
Georges Racinet <georges.racinet@octobus.net>
parents: 42609
diff changeset
27 ) -> PyResult<HashSet<Revision>> {
41705
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
28 let mut as_set: HashSet<Revision> = rev_pyiter_collect(py, &revs)?;
43951
f98f0e3ddaa1 rust-index: add a function to convert PyObject index for hg-core
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43269
diff changeset
29 dagops::retain_heads(&pyindex_to_graph(py, index)?, &mut as_set)
41705
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
30 .map_err(|e| GraphError::pynew(py, e))?;
43269
33fe96a5c522 rust-cpython: removed now useless py_set() conversion
Georges Racinet <georges.racinet@octobus.net>
parents: 42609
diff changeset
31 Ok(as_set)
41705
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
32 }
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
33
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
34 /// Create the module, with `__package__` given from parent
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
35 pub fn init_module(py: Python, package: &str) -> PyResult<PyModule> {
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
36 let dotted_name = &format!("{}.dagop", package);
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
37 let m = PyModule::new(py, dotted_name)?;
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
38 m.add(py, "__package__", package)?;
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
39 m.add(py, "__doc__", "DAG operations - Rust implementation")?;
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
40 m.add(
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
41 py,
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
42 "headrevs",
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
43 py_fn!(py, headrevs(index: PyObject, revs: PyObject)),
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
44 )?;
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
45
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
46 let sys = PyModule::import(py, "sys")?;
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
47 let sys_modules: PyDict = sys.get(py, "modules")?.extract(py)?;
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
48 sys_modules.set_item(py, dotted_name, &m)?;
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
49 // Example C code (see pyexpat.c and import.c) will "give away the
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
50 // reference", but we won't because it will be consumed once the
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
51 // Rust PyObject is dropped.
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
52 Ok(m)
0c7b353ce100 rust-cpython: binding for headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents:
diff changeset
53 }