rust-re2: add wrapper for calling Re2 from Rust
This assumes that Re2 is installed following Google's guide. I am not sure
how we want to integrate it in the project, but I think a follow-up patch would
be more appropriate for such work.
As it stands, *not* having Re2 installed results in a compilation error, which
is a problem as it breaks install compatibility. Hence, this is gated behind
a non-default `with-re2` compilation feature.
Differential Revision: https://phab.mercurial-scm.org/D7910
[package]
name = "hg-cpython"
version = "0.1.0"
authors = ["Georges Racinet <gracinet@anybox.fr>"]
edition = "2018"
[lib]
name='rusthg'
crate-type = ["cdylib"]
[features]
default = ["python27"]
with-re2 = ["hg-core/with-re2"]
# Features to build an extension module:
python27 = ["cpython/python27-sys", "cpython/extension-module-2-7"]
python3 = ["cpython/python3-sys", "cpython/extension-module"]
# Enable one of these features to build a test executable linked to libpython:
# e.g. cargo test --no-default-features --features python27-bin
python27-bin = ["cpython/python27-sys"]
python3-bin = ["cpython/python3-sys"]
[dependencies]
hg-core = { path = "../hg-core"}
libc = '*'
[dependencies.cpython]
version = "0.4"
default-features = false