Summary: Add `PyNone`. This is a marker struct that indicates that a python function can only return `PyNone`.
Reviewed By: xavierd
Differential Revision: D19644338
fbshipit-source-id: f846b146237ebf7de996177494934fec662cde0f
Summary:
This makes `make hg3` work. It requires cleaning up the `build` directory when
switching between py2 and py3 build, which will be fixed later.
Reviewed By: DurhamG
Differential Revision: D19604824
fbshipit-source-id: 060ff313420126a5dba935c4451b45dc9af45f13
Summary: Update to the new version of rust-cpython. This supports `list.append`, so make use of it.
Reviewed By: xavierd
Differential Revision: D19590905
fbshipit-source-id: 03609d4f698ae8e4380e82b8144caaa205b4c2d4
Summary:
Make it possible to define reusable flags like walkopts, templateopts that can
be shared among commands.
Reviewed By: DurhamG
Differential Revision: D19325640
fbshipit-source-id: 89a9ad0e59672b1f8cfa22daaacd3c75d8cff61a
Summary:
This diff replaces eden's dependencies on failure::Error with anyhow::Error.
Failure's error type requires all errors to have an implementation of failure's own failure::Fail trait in order for cause chains and backtraces to work. The necessary methods for this functionality have made their way into the standard library error trait, so modern error libraries build directly on std::error::Error rather than something like failure::Fail. Once we are no longer tied to failure 0.1's Fail trait, different parts of the codebase will be free to use any std::error::Error-based libraries they like while still working nicely together.
Reviewed By: xavierd
Differential Revision: D18576093
fbshipit-source-id: e2d862b659450f2969520d9b74877913fabb2e5d
Summary:
This diff replaces code of the form:
```
use failure::Fail;
#[derive(Fail, Debug)]
pub enum ErrorKind {
#[fail(display = "something failed {} times", _0)]
Failed(usize),
}
```
with:
```
use thiserror::Error;
#[derive(Error, Debug)]
pub enum ErrorKind {
#[error("something failed {0} times")]
Failed(usize),
}
```
The former emits an implementation of failure 0.1's `Fail` trait while the latter emits an impl of `std::error::Error`. Failure provides a blanket impl of `Fail` for any type that implements `Error`, so these `Error` impls are strictly more general. Each of these error types will continue to have exactly the same `Fail` impl that it did before this change, but now also has the appropriate `std::error::Error` impl which sets us up for dropping our various dependencies on `Fail` throughout the codebase.
Reviewed By: Imxset21
Differential Revision: D18523700
fbshipit-source-id: 0e43b10d5dfa79820663212391ecbf4aeaac2d41
Summary:
In preparation for merging fb-mercurial sources to the Eden repository,
move everything from the top-level directory into an `eden/scm`
subdirectory.
