hgbook

annotate en/tour.tex @ 87:0995016342f8

More bumf.
author Bryan O'Sullivan <bos@serpentine.com>
date Wed Oct 04 17:11:53 2006 -0700 (2006-10-04)
parents b7c69a68b0cc
children d351032c189c
rev   line source
bos@84 1 \chapter{A lightning tour of Mercurial}
bos@84 2 \label{chap:tour}
bos@84 3
bos@84 4 \section{Installing Mercurial on your system}
bos@84 5 \label{sec:tour:install}
bos@84 6
bos@85 7 Prebuilt binary packages of Mercurial are available for every popular
bos@85 8 operating system. These make it easy to start using Mercurial on your
bos@85 9 computer immediately.
bos@85 10
bos@84 11 \subsection{Linux}
bos@84 12
bos@84 13 Because each Linux distribution has its own packaging tools, policies,
bos@84 14 and rate of development, it's difficult to give a comprehensive set of
bos@85 15 instructions on how to install Mercurial binaries. The version of
bos@85 16 Mercurial that you will end up with can vary depending on how active
bos@85 17 the person is who maintains the package for your distribution.
bos@84 18
bos@84 19 To keep things simple, I will focus on installing Mercurial from the
bos@84 20 command line under the most popular Linux distributions. Most of
bos@84 21 these distributions provide graphical package managers that will let
bos@84 22 you install Mercurial with a single click; the package name to look
bos@84 23 for is \texttt{mercurial}.
bos@84 24
bos@85 25 \begin{itemize}
bos@85 26 \item[Debian]
bos@85 27 \begin{codesample4}
bos@85 28 apt-get install mercurial
bos@85 29 \end{codesample4}
bos@84 30
bos@85 31 \item[Fedora Core]
bos@85 32 \begin{codesample4}
bos@85 33 yum install mercurial
bos@85 34 \end{codesample4}
bos@84 35
bos@85 36 \item[Gentoo]
bos@85 37 \begin{codesample4}
bos@85 38 emerge mercurial
bos@85 39 \end{codesample4}
bos@84 40
bos@85 41 \item[OpenSUSE]
bos@85 42 \begin{codesample4}
bos@85 43 yum install mercurial
bos@85 44 \end{codesample4}
bos@84 45
bos@85 46 \item[Ubuntu] Ubuntu's Mercurial package is particularly old, and you
bos@85 47 should not use it. If you know how, you can rebuild and install the
bos@85 48 Debian package. It's probably easier to build Mercurial from source
bos@85 49 and simply run that; see section~\ref{sec:srcinstall:unixlike} for
bos@85 50 details.
bos@85 51 \end{itemize}
bos@84 52
bos@84 53 \subsection{Mac OS X}
bos@84 54
bos@84 55 Lee Cantey publishes an installer of Mercurial for Mac OS~X at
bos@84 56 \url{http://mercurial.berkwood.com}. This package works on both
bos@85 57 Intel-~and Power-based Macs. Before you can use it, you must install
bos@85 58 a compatible version of Universal MacPython~\cite{web:macpython}. This
bos@85 59 is easy to do; simply follow the instructions on Lee's site.
bos@84 60
bos@84 61 \subsection{Solaris}
bos@84 62
bos@84 63 XXX.
bos@84 64
bos@84 65 \subsection{Windows}
bos@84 66
bos@84 67 Lee Cantey publishes an installer of Mercurial for Windows at
bos@84 68 \url{http://mercurial.berkwood.com}. This package has no external
bos@84 69 dependencies; it ``just works''.
bos@84 70
bos@84 71 \begin{note}
bos@84 72 The Windows version of Mercurial does not automatically convert line
bos@84 73 endings between Windows and Unix styles. If you want to share work
bos@84 74 with Unix users, you must do a little additional configuration
bos@84 75 work. XXX Flesh this out.
bos@84 76 \end{note}
bos@84 77
bos@87 78 \section{Getting started}
bos@87 79
bos@87 80 To begin, we'll use the \hgcmd{version} command to find out whether
bos@87 81 Mercurial is actually installed properly. The actual version
bos@87 82 information that it prints isn't so important; it's whether it prints
bos@87 83 anything at all that we care about.
bos@87 84 \interaction{tour.version}
bos@87 85
bos@87 86 \subsection{Built-in help}
bos@87 87
bos@87 88 Mercurial provides a built-in help system. This invaluable for those
bos@87 89 times when you find yourself stuck trying to remember how to run a
bos@87 90 command. If you are completely stuck, simply run \hgcmd{help}; it
bos@87 91 will print a brief list of commands, along with a description of what
bos@87 92 each does. If you ask for help on a specific command (as below), it
bos@87 93 prints more detailed information.
bos@87 94 \interaction{tour.help}
bos@87 95 For a more impressive level of detail (which you won't usually need)
bos@87 96 run \hgcmdargs{help}{\hggopt{-v}}. The \hggopt{-v} option is short
bos@87 97 for \hggopt{--verbose}, and tells Mercurial to print more information
bos@87 98 than it usually would.
bos@87 99
bos@87 100 \section{Working with a repository}
bos@87 101
bos@87 102 In Mercurial, everything happens inside a \emph{repository}. The
bos@87 103 repository for a project contains all of the files that ``belong to''
bos@87 104 that project, along with a historical record of the project's files.
bos@87 105
bos@87 106 There's nothing particularly magical about a repository; it is simply
bos@87 107 a directory tree in your filesystem that Mercurial treats as special.
bos@87 108 You can rename delete a repository any time you like, using either the
bos@87 109 command line or your file browser.
bos@87 110
bos@87 111 \subsection{Making a copy of a repository}
bos@87 112
bos@87 113 \emph{Copying} a repository is just a little bit special. While you
bos@87 114 could use a normal file copying command to make a copy of a
bos@87 115 repository, it's best to use a built-in command that Mercurial
bos@87 116 provides. This command is called \hgcmd{clone}, because it creates an
bos@87 117 identical copy of an existing repository.
bos@87 118 \interaction{tour.clone}
bos@87 119 If our clone succeeded, we should now have a local directory called
bos@87 120 \dirname{hello}. This directory will contain some files.
bos@87 121 \interaction{tour.ls}
bos@87 122 These files have the same contents and history in our repository as
bos@87 123 they do in the repository we cloned.
bos@87 124
bos@87 125 Every Mercurial repository is complete, self-contained, and
bos@87 126 independent. It contains its own private copy of a project's files
bos@87 127 and history. A cloned repository remembers the location of the
bos@87 128 repository it was cloned from, but it does not communicate with that
bos@87 129 repository, or any other, unless you tell it to.
bos@87 130
bos@87 131 What this means for now is that we're free to experiment with our
bos@87 132 repository, safe in the knowledge that it's a private ``sandbox'' that
bos@87 133 won't affect anyone else.
bos@85 134
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