comparison rust/rhg/README.md @ 49564:b1c20e41098f stable

rhg: add `config.rhg` helptext

This will make using `rhg` more user-friendly and features more
discoverable.

49563:9dce3960735b

## Mercurial configuration

`rhg` reads Mercurial configuration from the usual sources:
the user’s `~/.hgrc`, a repository’s `.hg/hgrc`, command line `--config`, etc.
It has some specific configuration in the `[rhg]` section:

* `on-unsupported` governs the behavior of `rhg` when it encounters something
  that it does not support but “full” `hg` possibly does.
  This can be in configuration, on the command line, or in a repository.

  - `abort`, the default value, makes `rhg` print a message to stderr
    to explain what is not supported, then terminate with a 252 exit code.
  - `abort-silent` makes it terminate with the same exit code,
    but without printing anything.
  - `fallback` makes it silently call a (presumably Python-based) `hg`
    subprocess with the same command-line parameters.
    The `rhg.fallback-executable` configuration must be set.

* `fallback-executable`: path to the executable to run in a sub-process
  when falling back to a Python implementation of Mercurial.

* `allowed-extensions`: a list of extension names that `rhg` can ignore.

  Mercurial extensions can modify the behavior of existing `hg` sub-commands,
  including those that `rhg` otherwise supports.
  Because it cannot load Python extensions, finding them
  enabled in configuration is considered “unsupported” (see above).
  A few exceptions are made for extensions that `rhg` does know about,
  with the Rust implementation duplicating their behavior.

  This configuration makes additional exceptions: `rhg` will proceed even if
  those extensions are enabled.


## Installation and configuration example

For example, to install `rhg` as `hg` for the current user with fallback to
the system-wide install of Mercurial, and allow it to run even though the

49564:b1c20e41098f

## Mercurial configuration

`rhg` reads Mercurial configuration from the usual sources:
the user’s `~/.hgrc`, a repository’s `.hg/hgrc`, command line `--config`, etc.
It has some specific configuration in the `[rhg]` section.

See `hg help config.rhg` for details.

## Installation and configuration example

For example, to install `rhg` as `hg` for the current user with fallback to
the system-wide install of Mercurial, and allow it to run even though the