Mercurial

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Mercurial (commonly referred to as hg) is a distributed version control system written in Python and is similar in many ways to Git, Bazaar and darcs.

Installation

Mercurial is available from the standard repositories (see mercurial):

# pacman -S mercurial

Configuration

At the minimum you should configure your username or mercurial will most likely give you an error when trying to commit. Do this by editing ~/.hgrc and adding the following:

~/.hgrc
[ui]
username = John Smith

To use the graphical browser hgk aka. hg view, add the following to ~/.hgrc (see forum thread):

~/.hgrc
[extensions]
hgk=

To remove Mercurial warnings of unverified certificate fingerprints, add the following to ~/.hgrc (see Mercurial wiki):

~/.hgrc
[web]
cacerts = /etc/ssl/certs/ca-certificates.crt

Usage

All mercurial commands are initiated with the hg prefix. To see a list of some of the common commands, run

$ hg help

You can either work with a pre-existing repository (collection of code or files), or create your own to share.

To work with a pre-existing repository, you must clone it to a directory of your choice:

$ mkdir mercurial
$ cd mercurial
$ hg clone http://hg.serpentine.com/tutorial/

To create you own, change to the directory you wish to share and initiate a mercurial project

$ cd myfiles
$ hg init myfiles

Dotfiles Repo

If you intend on creating a repo of all your ~/. files, you simply initiate the project in your home folder:

$ hg init

It is then just a case of adding the specific files you wish to track:

$ hg add 

You can then create a ~/.hgignore to ensure that only the files you wish to include in the repository are tracked by mercurial.

Tip: If you include: syntax: glob at the top of the .hgignore file, you can easily exclude groups of files from your repository.

More Resources