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annotate rust/hg-cpython/src/utils.rs @ 44350:c577bb4a04d4

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nodemap: have some python code writing a nodemap in persistent binary form This python code aims to be as "simple" as possible. It is a reference implementation of the data we are going to write on disk (and possibly, later a way for pure python install to make sure the on disk data are up to date). It is not optimized for performance and rebuild the full data structure from the index every time. This is a stepping stone toward a persistent nodemap on disk. Differential Revision: https://phab.mercurial-scm.org/D7834
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Wed, 15 Jan 2020 15:47:12 +0100
parents 970978975574
children d738b7a18438
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43251
970978975574 rust-utils: introduce a debug util to print the python stack trace
Rapha?l Gom?s <rgomes@octobus.net>
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1 use cpython::{PyDict, PyObject, PyResult, PyTuple, Python};
970978975574 rust-utils: introduce a debug util to print the python stack trace
Rapha?l Gom?s <rgomes@octobus.net>
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2
970978975574 rust-utils: introduce a debug util to print the python stack trace
Rapha?l Gom?s <rgomes@octobus.net>
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3 #[allow(unused)]
970978975574 rust-utils: introduce a debug util to print the python stack trace
Rapha?l Gom?s <rgomes@octobus.net>
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4 pub fn print_python_trace(py: Python) -> PyResult<PyObject> {
970978975574 rust-utils: introduce a debug util to print the python stack trace
Rapha?l Gom?s <rgomes@octobus.net>
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5 eprintln!("===============================");
970978975574 rust-utils: introduce a debug util to print the python stack trace
Rapha?l Gom?s <rgomes@octobus.net>
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6 eprintln!("Printing Python stack from Rust");
970978975574 rust-utils: introduce a debug util to print the python stack trace
Rapha?l Gom?s <rgomes@octobus.net>
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7 eprintln!("===============================");
970978975574 rust-utils: introduce a debug util to print the python stack trace
Rapha?l Gom?s <rgomes@octobus.net>
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8 let traceback = py.import("traceback")?;
970978975574 rust-utils: introduce a debug util to print the python stack trace
Rapha?l Gom?s <rgomes@octobus.net>
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9 let sys = py.import("sys")?;
970978975574 rust-utils: introduce a debug util to print the python stack trace
Rapha?l Gom?s <rgomes@octobus.net>
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10 let kwargs = PyDict::new(py);
970978975574 rust-utils: introduce a debug util to print the python stack trace
Rapha?l Gom?s <rgomes@octobus.net>
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11 kwargs.set_item(py, "file", sys.get(py, "stderr")?)?;
970978975574 rust-utils: introduce a debug util to print the python stack trace
Rapha?l Gom?s <rgomes@octobus.net>
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12 traceback.call(py, "print_stack", PyTuple::new(py, &[]), Some(&kwargs))
970978975574 rust-utils: introduce a debug util to print the python stack trace
Rapha?l Gom?s <rgomes@octobus.net>
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13 }