Merge remote-tracking branch 'jfw/master'

[code/vcsh.git] / README.md

diff --git a/README.md b/README.md
index 9fede80d35de814c8c946d819b9db581da077676..785b36ca83348a59198671c10f8ca5e091932fee 100644 (file)
--- a/README.md
+++ b/README.md
@@ -1,71 +1,132 @@
-vcsh - manage config files in $HOME via fake bare git repositories
+vcsh - Version Control System for $HOME - multiple Git repositories in $HOME

 
 

-# Index #

 
 

-1. Contact
-2. Introduction
-3. Overview
-4. Getting Started
-5. Usage
+# Index

 
 

-# 1 Contact #
+1. [30 second howto](#30-second-howto)
+2. [Introduction](#introduction)
+3. [Usage Exmaples](#usage-examples)
+4. [Overview](#overview)
+5. [Getting Started](#getting-started)
+6. [Contact](#contact)

 
 

-There are several ways to get in touch with the author and a small but committed
-community around the general idea of version controlling your (digital) life.

 
 

-* IRC: #vcs-home on irc.oftc.net
+# 30 second howto
+
+While it may appear that there's an overwhelming amount of documentation and
+while the explanation of the concepts behind `vcsh` needs to touch a few gory
+details of `git` internals, getting started with `vcsh` is extremely simple.
+
+Let's say you want to version control your `vim` configuration:
+
+    vcsh init vim
+    vcsh vim add ~/.vimrc ~/.vim
+    vcsh vim commit -m 'Initial commit of my Vim configuration'
+    # optionally push your files to a remote
+    vcsh vim remote add origin <remote>
+    vcsh vim push -u origin master
+    # from now on you can push additional commits like this
+    vcsh vim push
+
+If all that looks a _lot_ like standard `git`, that's no coincidence; it's
+a design feature.
+
+
+# Introduction
+
+[vcsh][vcsh] allows you to maintain several Git repositories in one single
+directory. They all maintain their working trees without clobbering each other
+or interfering otherwise. By default, all Git repositories maintained via
+`vcsh` store the actual files in `$HOME` but you can override this setting if
+you want to.
+
+All this means that you can have one repository per application or application
+family, i.e. `zsh`, `vim`, `ssh`, etc. This, in turn, allows you to clone
+custom sets of configurations onto different machines or even for different
+users; picking and mixing which configurations you want to use where.
+For example, you may not need to have your `mplayer` configuration on a server
+or available to root and you may want to maintain different configuration for
+`ssh` on your personal and your work machines.
+
+A lot of modern UNIX-based systems offer packages for `vcsh`. In case yours
+does not read `INSTALL.md` for install instructions or `PACKAGING.md` to create
+a package, yourself. If you do end up packaging `vcsh` please let us know so we
+can give you your own packaging branch in the upstream repository.
+
+## Talks
+
+Some people found it useful to look at slides and videos explaining how `vcsh`
+works instead of working through the docs.
+All slides, videos, and further information can be found
+[on the author's talk page][talks].

 
 

-* Mailing list: http://lists.madduck.net/listinfo/vcs-home

 
 

-* Pull requests or issues on https://github.com/RichiH/vcsh
+# Usage Examples

 
 

-# 2 Introduction #
+There are three different ways to interact with `vcsh` repositories; this
+section will only show the simplest and easiest way.

 
 

-vcsh allows you to have several git repositories, all maintaining their working
-trees in $HOME without clobbering each other. That, in turn, means you can have
-one repository per config set (zsh, vim, ssh, etc), picking and choosing which
-configs you want to use on which machine.
+Certain more advanced use cases require the other two ways, but don't worry
+about this for now. If you never even bother playing with the other two
+modes you will still be fine.

 
 

-vcsh was designed with [mr] [1] in mind so you might want to install that, as
-well.
+`vcsh enter` and `vcsh run`  will be covered in later sections.

 
 

-Read INSTALL.md for detailed setup instructions.

 
 

-The following overview will try to give you an idea of the use cases and
-advantages of vcsh. See sections 3 and 4 for detailed instructions and
-examples.
+| Task                                                  | Command                                           |
+| ----------------------------------------------------- | ------------------------------------------------- |
+| _Initialize a new repository called "vim"_            |   `vcsh init vim`                                 |
+| _Clone an existing repository_                        |   `vcsh clone <remote> <repository_name>`         |
+| _Add files to repository "vim"_                       |   `vcsh vim add ~/.vimrc ~/.vim`                  |
+|                                                       |   `vcsh vim commit -m 'Update Vim configuration'` |
+| _Add a remote for repository "vim"_                   |   `vcsh vim remote add origin <remote>`           |
+|                                                       |   `vcsh vim push origin master:master`            |
+|                                                       |   `vcsh vim branch --track master origin/master`  |
+| _Push to remote of repository "vim"_                  |   `vcsh vim push`                                 |
+| _Pull from remote of repository "vim"_                |   `vcsh vim pull`                                 |
+| _Show status of changed files in all repositories_    |   `vcsh status`                                   |
+| _Pull from all repositories_                          |   `vcsh pull`                                     |
+| _Push to all repositories_                            |   `vcsh push`                                     |

 
 

-## 2.1 Talks ##

 
 

-People found it useful to look at slides and videos explaining how vcsh works.
-They can all be found at [here](http://richardhartmann.de/talks/).
+# Overview

 
 

-# 3 Overview
+## From zero to vcsh

 
 

-## 3.1 Comparison to Other Solutions ##
+You put a lot of effort into your configuration and want to both protect and
+distribute this configuration.

 
 Most people who decide to put their dotfiles under version control start with a
 
 Most people who decide to put their dotfiles under version control start with a

-**single repository in $HOME**, adding all their dotfiles (and possibly more)
+single repository in `$HOME`, adding all their dotfiles (and possibly more)

 to it. This works, of course, but can become a nuisance as soon as you try to
 manage more than one host.
 
 The next logical step is to create single-purpose repositories in, for example,
 to it. This works, of course, but can become a nuisance as soon as you try to
 manage more than one host.
 
 The next logical step is to create single-purpose repositories in, for example,

-~/.dotfiles and to create **symbolic links in $HOME**. This gives you the
+`~/.dotfiles` and to create symbolic links into `$HOME`. This gives you the

 flexibility to check out only certain repositories on different hosts. The
 downsides of this approach are the necessary manual steps of cloning and
 flexibility to check out only certain repositories on different hosts. The
 downsides of this approach are the necessary manual steps of cloning and

-symlinking the individual repositories. It will probably become a nuisance when
-you try to manage more than two hosts.
+symlinking the individual repositories.

 
 

-**vcsh** takes this second approach one step further. It expects
-**single-purpose repositories** and stores them in a hidden directory (similar
-to ~/.dotfiles). However, it does not create symbolic links in $HOME; it puts
-the **actual files right into $HOME**.
+`vcsh` takes this approach one step further. It enables single-purpose
+repositories and stores them in a hidden directory. However, it does not create
+symbolic links in `$HOME`; it puts the actual files right into `$HOME`.

 
 

-Furthermore, by making use of [mr] [1], it makes it very easy to enable/disable
-and clone a large number of repositories. The use of mr is technically optional
-(see 4.3), but it will be an integral part of the proposed system that follows.
+As `vcsh` allows you to put an arbitrary number of distinct repositories into
+your `$HOME`, you will end up with a lot of repositories very quickly.

 
 

-## 3.2 Default Directory Layout ##
+`vcsh` was designed with [myrepos][myrepos], a tool to manage Multiple
+Repositories, in mind and the two integrate very nicely. The myrepos tool
+(`mr`) has native support for `vcsh` repositories and the configuration for
+myrepos is just another set of files that you cat track with `vcsh` like any
+other. This makes setting up any new machine a breeze. It can take literally
+less than five minutes to go from standard installation to fully set up system.
+
+We suggest using [myrepos][myrepos] to manage both `vcsh` and other repositories. The
+`mr` utility takes care of pulling in and pushing out new data for a variety of
+version control systems.  While the use of myrepos is technically optional, it will
+be an integral part of the proposed system that follows.
+
+## Default Directory Layout

 
 To illustrate, this is what a possible directory structure looks like.
 
 
 To illustrate, this is what a possible directory structure looks like.
 


@@ -101,81 +162,78 @@ To illustrate, this is what a possible directory structure looks like.
         |-- .mrconfig
         `-- .mrtrust
 
         |-- .mrconfig
         `-- .mrtrust
 

-### available.d ###
+### available.d

 
 

-The files you see in $XDG\_CONFIG\_HOME/mr/available.d are mr configuration files
-that contain the commands to manage (checkout, update etc.) a single
-repository. vcsh repo configs end in .vcsh, git configs end in .git, etc. This
-is optional and your preference. For example, this is what a zsh.vcsh
-with read-only access to my zshrc repo looks likes. I.e. in this specific
-example, push can not work as you will be using the author's repository. This
-is for demonstration, only. Of course, you are more than welcome to clone from
-this repository and fork your own.
+The files you see in $XDG\_CONFIG\_HOME/mr/available.d are myrepos
+configuration files that contain the commands to manage (checkout, update
+etc.) a single repository. vcsh repo configs end in .vcsh, git configs end
+in .git, etc. This is optional and your preference. For example, this is
+what a zsh.vcsh with read-only access to my zshrc repo looks likes. I.e. in
+this specific example, push can not work as you will be using the author's
+repository. This is for demonstration, only. Of course, you are more than
+welcome to clone from this repository and fork your own.

 
     [$XDG_CONFIG_HOME/vcsh/repo.d/zsh.git]
     checkout = vcsh clone 'git://github.com/RichiH/zshrc.git' zsh
 
     [$XDG_CONFIG_HOME/vcsh/repo.d/zsh.git]
     checkout = vcsh clone 'git://github.com/RichiH/zshrc.git' zsh

-    update   = vcsh run zsh git pull
-    push     = vcsh run zsh git push
-    status   = vcsh run zsh git status
-    gc       = vcsh run zsh git gc
+    update   = vcsh zsh pull
+    push     = vcsh zsh push
+    status   = vcsh zsh status
+    gc       = vcsh zsh gc

 
 

-### config.d ###
+### config.d

 
 $XDG\_CONFIG\_HOME/mr/available.d contains *all available* repositories. Only
 
 $XDG\_CONFIG\_HOME/mr/available.d contains *all available* repositories. Only

-files/links present in mr/config.d, however, will be used by mr. That means
+files/links present in mr/config.d, however, will be used by myrepos. That means

 that in this example, only the zsh, gitconfigs, tmux and vim repositories will
 be checked out. A simple `mr update` run in $HOME will clone or update those
 four repositories listed in config.d.
 
 that in this example, only the zsh, gitconfigs, tmux and vim repositories will
 be checked out. A simple `mr update` run in $HOME will clone or update those
 four repositories listed in config.d.
 

-### ~/.mrconfig ###
+### ~/.mrconfig

 
 Finally, ~/.mrconfig will tie together all those single files which will allow
 you to conveniently run `mr up` etc. to manage all repositories. It looks like
 this:
 
     [DEFAULT]
 
 Finally, ~/.mrconfig will tie together all those single files which will allow
 you to conveniently run `mr up` etc. to manage all repositories. It looks like
 this:
 
     [DEFAULT]

-    jobs = 5
-    # Use if your mr does not have vcsh support in mainline, yet
-    include = cat /usr/share/mr/vcsh

     include = cat ${XDG_CONFIG_HOME:-$HOME/.config}/mr/config.d/*
 
     include = cat ${XDG_CONFIG_HOME:-$HOME/.config}/mr/config.d/*
 

-### repo.d ###
+### repo.d

 
 $XDG\_CONFIG\_HOME/vcsh/repo.d is the directory where all git repositories which
 are under vcsh's control are located. Since their working trees are configured
 to be in $HOME, the files contained in those repositories will be put in $HOME
 directly.
 
 $XDG\_CONFIG\_HOME/vcsh/repo.d is the directory where all git repositories which
 are under vcsh's control are located. Since their working trees are configured
 to be in $HOME, the files contained in those repositories will be put in $HOME
 directly.

-Of course, [mr] [1] will work with this layout if configured according to this
-document (see above).
+
+Of course, [myrepos][myrepos] will work with this layout if configured according to
+this document (see above).

 
 vcsh will check if any file it would want to create exists. If it exists, vcsh
 will throw a warning and exit. Move away your old config and try again.
 Optionally, merge your local and your global configs afterwards and push with
 
 vcsh will check if any file it would want to create exists. If it exists, vcsh
 will throw a warning and exit. Move away your old config and try again.
 Optionally, merge your local and your global configs afterwards and push with

-`vcsh run foo git push`.
+`vcsh foo push`.

 
 

-## 3.3 Moving into a New Host ##
+## Moving into a New Host

 
 To illustrate further, the following steps could move your desired
 configuration to a new host.
 
 
 To illustrate further, the following steps could move your desired
 configuration to a new host.
 

-1. Clone the mr repository (containing available.d, config.d etc.); for
+1. Clone the myrepos repository (containing available.d, config.d etc.); for

    example: `vcsh clone git://github.com/RichiH/vcsh_mr_template.git mr`
 2. Choose your repositories by linking them in config.d (or go with the default
    you may have already configured by adding symlinks to git).
    example: `vcsh clone git://github.com/RichiH/vcsh_mr_template.git mr`
 2. Choose your repositories by linking them in config.d (or go with the default
    you may have already configured by adding symlinks to git).

-3. Make sure the line 'include = cat /usr/share/mr/vcsh' in .mrconfig points
-   to an existing file
-4. Run mr to clone the repositories: `cd; mr update`.
-5. Done.
+3. Run myrepos to clone the repositories: `cd; mr update`.
+4. Done.

 
 Hopefully the above could help explain how this approach saves time by
 
 1. making it easy to manage, clone and update a large number of repositories
 
 Hopefully the above could help explain how this approach saves time by
 
 1. making it easy to manage, clone and update a large number of repositories

-   (thanks to mr) and
+   (thanks to myrepos) and

 2. making it unnecessary to create symbolic links in $HOME (thanks to vcsh).
 
 If you want to give vcsh a try, follow the instructions below.
 
 2. making it unnecessary to create symbolic links in $HOME (thanks to vcsh).
 
 If you want to give vcsh a try, follow the instructions below.
 

-# 4 Getting Started #
+
+# Getting Started

 
 Below, you will find a few different methods for setting up vcsh:
 
 
 Below, you will find a few different methods for setting up vcsh:
 


@@ -183,9 +241,9 @@ Below, you will find a few different methods for setting up vcsh:
 2. The Steal-from-Template Way
 3. The Manual Way
 
 2. The Steal-from-Template Way
 3. The Manual Way
 

-### 4.1 The Template Way ###
+### The Template Way

 
 

-#### 4.1.1 Prerequisites ####
+#### Prerequisites

 
 Make sure none of the following files and directories exist for your test
 (user). If they do, move them away for now:
 
 Make sure none of the following files and directories exist for your test
 (user). If they do, move them away for now:


@@ -200,21 +258,72 @@ Make sure none of the following files and directories exist for your test
 All of the files are part of the template repository, the directory is where
 the template will be stored.
 
 All of the files are part of the template repository, the directory is where
 the template will be stored.
 

-    apt-get install mr
+### Install vcsh
+
+#### Debian
+
+If you are using Debian Squeeze, you will need to enable backports and the
+package name for myrepos will be 'mr'.
+
+From Wheezy onwards, you can install both directly:
+
+    apt-get install myrepos vcsh
+
+#### Gentoo
+
+To install vcsh in Gentoo Linux just give the following command as root:
+
+    emerge dev-vcs/vcsh
+
+Note the portage package for myrepos still has the old project name:
+
+    emerge dev-vcs/mr

 
 

-#### 4.1.2 Clone the Template ####
+#### Arch Linux

 
 

-    cd $HOME
+vcsh is available via this [AUR](https://aur.archlinux.org/packages/vcsh/)
+package. Likewise myrepos is available [here](https://aur.archlinux.org/packages/myrepos/).
+You may install both useing your favorite AUR helper. e.g. with yaourt:
+
+    yaourt -Sya myrepos vcsh
+
+Or you can do it yourself manually using the documentation on installing AUR packages 
+[on Arch's wiki](https://wiki.archlinux.org/index.php/Arch_User_Repository#Installing_packages).
+
+If you prefer to use the devel package that installs the git HEAD version it
+is available [here](https://aur.archlinux.org/packages/vcsh-git/).
+
+#### Mac OSX
+
+Formulas are available for vcsh as well as git and myrepos through [homebrew](http://brew.sh). The
+vcsh formula is set to depend on myrepos, so you only need one install command:
+
+    brew install vcsh
+
+#### From source
+
+To install the latest version from git:
+
+    # choose a location for your checkout

     mkdir -p ~/work/git
     mkdir -p ~/work/git

-    git clone git://github.com/RichiH/vcsh.git vcsh
-    # make sure 'include = cat /usr/share/mr/vcsh' points to an exiting file
-    vim .mrconfig
+    cd ~/work/git
+    git clone git://github.com/RichiH/vcsh.git

     cd vcsh
     cd vcsh

-    ln -s vcsh /usr/local/bin                       # or add it to your PATH
-    cd
+    sudo ln -s vcsh /usr/local/bin               # or add it to your PATH
+
+For myrepos:
+
+    # use checkout location from above
+    cd ~/work/git
+    git clone git://myrepos.branchable.com/ myrepos
+    cd myrepos
+    make install
+
+#### Clone the Template
+

     vcsh clone git://github.com/RichiH/vcsh_mr_template.git mr
 
     vcsh clone git://github.com/RichiH/vcsh_mr_template.git mr
 

-#### 4.1.3 Enable Your Test Repository ####
+#### Enable Your Test Repository

 
     mv ~/.zsh   ~/zsh.bak
     mv ~/.zshrc ~/zshrc.bak
 
     mv ~/.zsh   ~/zsh.bak
     mv ~/.zshrc ~/zshrc.bak


@@ -223,7 +332,7 @@ the template will be stored.
     cd
     mr up
 
     cd
     mr up
 

-#### 4.1.4 Set Up Your Own Repositories ####
+#### Set Up Your Own Repositories

 
 Now, it's time to edit the template config and fill it with your own remotes:
 
 
 Now, it's time to edit the template config and fill it with your own remotes:
 


@@ -233,17 +342,17 @@ Now, it's time to edit the template config and fill it with your own remotes:
 And then create your own stuff:
 
     vcsh init foo
 And then create your own stuff:
 
     vcsh init foo

-    vcsh run foo git add -f bar baz quux
-    vcsh run foo git remote add origin git://quuux
-    vcsh run foo git commit
-    vcsh run foo git push
+    vcsh foo add bar baz quux
+    vcsh foo remote add origin git://quuux
+    vcsh foo commit
+    vcsh foo push

 
     cp $XDG_CONFIG_HOME/mr/available.d/mr.vcsh $XDG_CONFIG_HOME/mr/available.d/foo.vcsh
     vim $XDG_CONFIG_HOME/mr/available.d/foo.vcsh # add your own repo
 
 Done!
 
 
     cp $XDG_CONFIG_HOME/mr/available.d/mr.vcsh $XDG_CONFIG_HOME/mr/available.d/foo.vcsh
     vim $XDG_CONFIG_HOME/mr/available.d/foo.vcsh # add your own repo
 
 Done!
 

-### 4.2 The Steal-from-Template Way ###
+### The Steal-from-Template Way

 
 You're welcome to clone the example repository:
 
 
 You're welcome to clone the example repository:
 


@@ -255,7 +364,7 @@ Look around in the clone. It should be reasonably simple to understand. If not,
 poke me, RichiH, on Freenode (query) or OFTC (#vcs-home).
 
 
 poke me, RichiH, on Freenode (query) or OFTC (#vcs-home).
 
 

-### 4.3 The Manual Way ###
+### The Manual Way

 
 This is how my old setup procedure looked like. Adapt it to your own style or
 copy mine verbatim, either is fine.
 
 This is how my old setup procedure looked like. Adapt it to your own style or
 copy mine verbatim, either is fine.


@@ -269,14 +378,14 @@ copy mine verbatim, either is fine.
     sudo ln -s ~/work/git/vcsh/vcsh /usr/bin/local
     hash -r
 
     sudo ln -s ~/work/git/vcsh/vcsh /usr/bin/local
     hash -r
 

-Grab my mr config. see below for details on how I set this up
+Grab my myrepos config. see below for details on how I set this up

 
     vcsh clone ssh://<remote>/mr.git
     cd $XDG_CONFIG_HOME/mr/config.d/
     ln -s ../available.d/* .
 
 
 
     vcsh clone ssh://<remote>/mr.git
     cd $XDG_CONFIG_HOME/mr/config.d/
     ln -s ../available.d/* .
 
 

-mr is used to actually retrieve configs, etc
+myrepos is used to actually retrieve configs, etc

 
     ~ % cat ~/.mrconfig
     [DEFAULT]
 
     ~ % cat ~/.mrconfig
     [DEFAULT]


@@ -293,9 +402,10 @@ mr is used to actually retrieve configs, etc
     ~ % cd
     ~ % mr -j 5 up
 
     ~ % cd
     ~ % mr -j 5 up
 

-# 5 Usage #

 
 

-### 5.1 Keeping repositories Up-to-Date ###
+# myrepos usage ; will be factored out & rewritten
+
+### Keeping repositories Up-to-Date

 
 This is the beauty of it all. Once you are set up, just run:
 
 
 This is the beauty of it all. Once you are set up, just run:
 


@@ -304,27 +414,22 @@ This is the beauty of it all. Once you are set up, just run:
 
 Neat.
 
 
 Neat.
 

-### 5.1 Making Changes ###
+### Making Changes

 
 After you have made some changes, for which you would normally use `git add`
 and `git commit`, use the vcsh wrapper (like above):
 
 
 After you have made some changes, for which you would normally use `git add`
 and `git commit`, use the vcsh wrapper (like above):
 

-    vcsh run foo git add -f bar baz quux
-    vcsh run foo git commit
-    vcsh run foo git push
+    vcsh foo add bar baz quux
+    vcsh foo commit
+    vcsh foo push

 
 

-By the way, you'll have to use -f/--force flag with git-add because all files
-will be ignored by default. This is to show you only useful output when running
-git-status. A fix for this problem is being worked on.
+### Using vcsh without myrepos

 
 

-### 5.3 Using vcsh without mr ###
-
-vcsh encourages you to use [mr] [1]. It helps you manage a large number of
+vcsh encourages you to use [myrepos][myrepos]. It helps you manage a large number of

 repositories by running the necessary vcsh commands for you. You may choose not
 repositories by running the necessary vcsh commands for you. You may choose not

-to use mr, in which case you will have to run those commands manually or by
+to use myrepos, in which case you will have to run those commands manually or by

 other means.
 
 other means.
 

-#### A Few Examples ####

 
 To initialize a new repository: `vcsh init zsh`
 
 
 To initialize a new repository: `vcsh init zsh`
 


@@ -333,19 +438,31 @@ To clone a repository: `vcsh clone ssh://<remote>/zsh.git`
 To interact with a repository, use the regular Git commands, but prepend them
 with `vcsh run $repository_name`. For example:
 
 To interact with a repository, use the regular Git commands, but prepend them
 with `vcsh run $repository_name`. For example:
 

-    vcsh run zsh git status
-    vcsh run zsh git add -f .zshrc
-    vcsh run zsh git commit
+    vcsh zsh status
+    vcsh zsh add .zshrc
+    vcsh zsh commit

 
 

-Obviously, without mr keeping repositories up-to-date, it will have to be done
+Obviously, without myrepos keeping repositories up-to-date, it will have to be done

 manually. Alternatively, you could try something like this:
 
     for repo in `vcsh list`; do
         vcsh run $repo git pull;
     done
 
 manually. Alternatively, you could try something like this:
 
     for repo in `vcsh list`; do
         vcsh run $repo git pull;
     done
 

-----------

 
 

-mr can be found at: [http://kitenet.net/~joey/code/mr/][1]
+# Contact
+
+There are several ways to get in touch with the author and a small but committed
+community around the general idea of version controlling your (digital) life.
+
+* IRC: #vcs-home on irc.oftc.net
+
+* Mailing list: [http://lists.madduck.net/listinfo/vcs-home][vcs-home-list]
+
+* Pull requests or issues on [https://github.com/RichiH/vcsh][vcsh]
+

 
 

-[1]: http://kitenet.net/~joey/code/mr/ (http://kitenet.net/~joey/code/mr/)
+[myrepos]: http://myrepos.branchable.com/
+[talks]: http://richardhartmann.de/talks/
+[vcsh]: https://github.com/RichiH/vcsh
+[vcs-home-list]: http://lists.madduck.net/listinfo/vcs-home