b0ba65a936
Previously, the Rust TUI was writing log files to `/tmp`, which is world-readable and not available on Windows, so that isn't great. This PR tries to clean things up by adding a function that provides the path to the "Codex config dir," e.g., `~/.codex` (though I suppose we could support `$CODEX_HOME` to override this?) and then defines other paths in terms of the result of `codex_dir()`. For example, `log_dir()` returns the folder where log files should be written which is defined in terms of `codex_dir()`. I updated the TUI to use this function. On UNIX, we even go so far as to `chmod 600` the log file by default, though as noted in a comment, it's a bit tedious to do the equivalent on Windows, so we just let that go for now. This also changes the default logging level to `info` for `codex_core` and `codex_tui` when `RUST_LOG` is not specified. I'm not really sure if we should use a more verbose default (it may be helpful when debugging user issues), though if so, we should probably also set up log rotation?
codex-core
This crate implements the business logic for Codex. It is designed to be used by the various Codex UIs written in Rust.
Though for non-Rust UIs, we are also working to define a protocol for talking to Codex. See:
You can use the proto subcommand using the executable in the cli crate to speak the protocol using newline-delimited-JSON over stdin/stdout.