Jun Wu 62ba7447f6 ui: switch to Rust IO for default fout, ferr ... Summary: The Rust IO handles progress and streampager stuff. Switch to it so we don't need to changing the `fout`, `ferr` when handling streampager in Python. The chgserver logic is updated to just set raw fd 0, 1, 2 to update stdio, since `fileno` is no longer exposed from Rust. Manually tested the following commands, both without chg and with chg: - lhg log -r . (no pager) - lhg log (with streampager) - lhg log --config pager.pager=less (with less pager) - lhg commit (spawns pager) - lhg debugprogress -s 100 --sleep 100 --with-output --pager=off (progress in stderr) - lhg debugprogress -s 100 --sleep 100 --with-output --pager=on --config pager.interface=fullscreen (progress in streampager) - lhg debugprogress -s 100 --sleep 100 --with-output --pager=on --config pager.pager='LESS= less' (progress is disabled with external pager) Reviewed By: sfilipco Differential Revision: D26612487 fbshipit-source-id: 8b4e36b614a0c080b93e41474f9a8fc33f890083		2021-02-23 22:33:48 -08:00
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src	ui: switch to Rust IO for default fout, ferr	2021-02-23 22:33:48 -08:00
Cargo.toml	hgcommands: init EDENSCM_LOG "env_logger" that writes to error stream	2021-02-19 15:22:07 -08:00