Jun Wu ae8a4340f7 clidispatch: add an API to obtain "writable" stdout stream ... Summary: Similar to D26518021 (3aba8d89b0), provide a way to obtain the "output" stream that implements `std::io::Write`. The "output" stream is then used to replace the `std::io::Write` implementation on the `IO` itself. This has 2 benefits: - Removes the `&mut` methods on `IO`. So all `&mut IO` can be replaced by `&IO` without exceptions. - Make it possible to drop `Clone` on `IO` (strong ref is not clonable, but weak ref can). So we can control the lifetime of the streams more predicatably. Reviewed By: sfilipco Differential Revision: D26538452 fbshipit-source-id: b00c65ae0ef5ef4a609104111706365028f47ef7		2021-02-23 15:09:14 -08:00
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src	clidispatch: add an API to obtain "writable" stdout stream	2021-02-23 15:09:14 -08:00
Cargo.toml	hgcommands: init EDENSCM_LOG "env_logger" that writes to error stream	2021-02-19 15:22:07 -08:00