mercurial: mercurial/helptext/rust.txt@363b687bb794 (annotated)

48532 7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	1	Mercurial can be augmented with Rust extensions for speeding up certain
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	2	operations.
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	3
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	4	Compatibility
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	5	=============
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	6
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	7	Though the Rust extensions are only tested by the project under Linux, users of
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	8	MacOS, FreeBSD and other UNIX-likes have been using the Rust extensions. Your
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	9	mileage may vary, but by all means do give us feedback or signal your interest
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	10	for better support.
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	11
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	12	No Rust extensions are available for Windows at this time.
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	13
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	14	Features
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	15	========
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	16
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	17	The following operations are sped up when using Rust:
48582 2b271cab2d1c helptext: add missing newline to Rust helptext Raphaël Gomès <rgomes@octobus.net> parents: 48532 diff changeset	18
48532 7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	19	- discovery of differences between repositories (pull/push)
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	20	- nodemap (see :hg:`help config.format.use-persistent-nodemap`)
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	21	- all commands using the dirstate (status, commit, diff, add, update, etc.)
48674 f7086f6173f8 dirstate-v2: rename the configuration to enable the format Pierre-Yves David <pierre-yves.david@octobus.net> parents: 48582 diff changeset	22	- dirstate-v2 (see :hg:`help config.format.use-dirstate-v2`)
48532 7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	23	- iteration over ancestors in a graph
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	24
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	25	More features are in the works, and improvements on the above listed are still
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	26	in progress. For more experimental work see the "rhg" section.
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	27
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	28	Checking for Rust
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	29	=================
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	30
49159 363b687bb794 docs: use proper rst markup for preformatted blocks Mads Kiilerich <mads@kiilerich.com> parents: 48674 diff changeset	31	You may already have the Rust extensions depending on how you install
363b687bb794 docs: use proper rst markup for preformatted blocks Mads Kiilerich <mads@kiilerich.com> parents: 48674 diff changeset	32	Mercurial::
48532 7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	33
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	34	$ hg debuginstall \| grep -i rust
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	35	checking Rust extensions (installed)
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	36	checking module policy (rust+c-allow)
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	37
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	38	If those lines don't even exist, you're using an old version of `hg` which does
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	39	not have any Rust extensions yet.
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	40
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	41	Installing
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	42	==========
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	43
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	44	You will need `cargo` to be in your `$PATH`. See the "MSRV" section for which
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	45	version to use.
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	46
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	47	Using pip
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	48	---------
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	49
49159 363b687bb794 docs: use proper rst markup for preformatted blocks Mads Kiilerich <mads@kiilerich.com> parents: 48674 diff changeset	50	Users of `pip` can install the Rust extensions with the following command::
48532 7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	51
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	52	$ pip install mercurial --global-option --rust --no-use-pep517
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	53
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	54	`--no-use-pep517` is here to tell `pip` to preserve backwards compatibility with
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	55	the legacy `setup.py` system. Mercurial has not yet migrated its complex setup
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	56	to the new system, so we still need this to add compiled extensions.
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	57
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	58	This might take a couple of minutes because you're compiling everything.
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	59
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	60	See the "Checking for Rust" section to see if the install succeeded.
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	61
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	62	From your distribution
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	63	----------------------
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	64
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	65	Some distributions are shipping Mercurial with Rust extensions enabled and
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	66	pre-compiled (meaning you won't have to install `cargo`), or allow you to
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	67	specify an install flag. Check with your specific distribution for how to do
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	68	that, or ask their team to add support for hg+Rust!
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	69
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	70	From source
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	71	-----------
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	72
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	73	Please refer to the `rust/README.rst` file in the Mercurial repository for
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	74	instructions on how to install from source.
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	75
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	76	MSRV
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	77	====
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	78
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	79	The minimum supported Rust version is currently 1.48.0. The project's policy is
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	80	to follow the version from Debian stable, to make the distributions' job easier.
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	81
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	82	rhg
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	83	===
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	84
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	85	There exists an experimental pure-Rust version of Mercurial called `rhg` with a
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	86	fallback mechanism for unsupported invocations. It allows for much faster
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	87	execution of certain commands while adding no discernable overhead for the rest.
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	88
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	89	The only way of trying it out is by building it from source. Please refer to
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	90	`rust/README.rst` in the Mercurial repository.
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	91
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	92	Contributing
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	93	============
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	94
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	95	If you would like to help the Rust endeavor, please refer to `rust/README.rst`
7ccd31fda132 docs: add documentation about Rust Raphaël Gomès <rgomes@octobus.net> parents: diff changeset	96	in the Mercurial repository.

author	Mads Kiilerich <mads@kiilerich.com>
	Tue, 03 May 2022 12:41:21 +0200
branch	stable
changeset 49159	363b687bb794
parent 48674	f7086f6173f8
child 49566	b1c20e41098f
permissions	-rw-r--r--