247 lines
8.4 KiB
Markdown
247 lines
8.4 KiB
Markdown
# installing gitolite
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<font color="red">**NOTE**: if you're migrating from g2, there are some
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settings that MUST be dealt with **before** running `gitolite setup`; please
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start [here][migr]. RTFM is *mandatory* for migrations.</font>
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----
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This is the first step in using gitolite, and happens on the server. It is
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followed by [setup][], then [clone][].
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----
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[[TOC]]
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----
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## notes and naming conventions
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Gitolite uses a single "real" (i.e., unix) user to provide secure access to
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git repos to any number of "virtual" users, without giving them a shell.
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The real user used is called the **hosting user**. Typically this user is
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*git*, and that is what we will use throughout the documentation. However
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RPMs and DEBs create a user called *gitolite* for this, so adjust instructions
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and examples accordingly.
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**Unless otherwise stated, everything in this page is to be done by logging in
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as this "hosting user"**.
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Notes:
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* Any unix user can be a hosting user.
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* Which also means you can have several hosting users on the same machine.
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* The URLs used will be of the form `git@host:reponame` (or its longer
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equivalent starting with `ssh://`). The `.git` at the end is optional. I
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recommend you leave it out, so your reponames are consistent with what the
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conf file uses.
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## #req requirements
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### your skills
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* If you're installing gitolite, you're a "system admin", like it or not.
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Ssh is therefore a necessary skill. Please take the time to learn at
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least enough to get passwordless access working.
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* You also need to be somewhat familiar with git itself. You cannot
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administer a whole bunch of git repositories if you don't know the basics
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of git.
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* Some familiarity with Unix and shells is probably required.
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* Regular expressions are a big part of gitolite in many places but
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familiarity is not necessary to do *basic* access control.
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### server
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* Any Unix system with a posix compatible "sh".
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* Git version 1.6.6 or later.
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* Perl 5.8.8 or later.
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* Openssh (almost any version). Optional if you're using [smart
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http][http].
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* A dedicated Unix userid to be the hosting user, usually "git" but it can
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be any user, even your own normal one. (If you're using an RPM/DEB the
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install probably created one called "gitolite").
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Also see the [WARNINGS][] page for more on what gitolite expects on the server
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side.
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### client
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* Openssh client.
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* Git 1.6.6 or later. Almost any git client will work, as long as it knows
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how to use ssh keys and send the right one along.
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## getting the software
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git clone git://github.com/sitaramc/gitolite
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## the actual install
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**Note**: This section describes installing an ssh-based setup. For smart
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http setup click [here][http].
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Gitolite has only one server side "command" now, much like git itself. This
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command is `gitolite`. You don't need to place it anywhere special; worst
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case you run it with the full path.
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"Installation" consists of the following options:
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1. Keep the sources anywhere and use the full path to run the `gitolite`
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command.
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2. Keep the sources anywhere and symlink *just* the `gitolite` program to
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some directory on your `$PATH`.
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3. Copy the sources somewhere and use that path to run the `gitolite`
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command.
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Option 2 is the best for general use.
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There is a program called 'install' that helps you do these easily. Assuming
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your cloned the repo like this:
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git clone git://github.com/sitaramc/gitolite
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you can run the 'install' command in 3 different ways:
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# option 1
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gitolite/install
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# option 2
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gitolite/install -ln
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# defaults to $HOME/bin (which is assumed to exist)
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# ** or **
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# or use a specific directory (please supply full path):
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gitolite/install -ln /usr/local/bin
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# option 3
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# (again, please supply a full path)
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gitolite/install -to /usr/local/gitolite/bin
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Creating a symlink doesn't need a separate program but 'install' also runs
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`git describe` to create a VERSION file, which, trust me, is important!
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**Next step**: run [**setup**][setup].
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## upgrading
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* Update your clone of the gitolite source.
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* Repeat the install command you used earlier (make sure you use the same
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arguments as before).
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* Run `gitolite setup`.
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## packaging gitolite
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Here are the requirements for gitolite:
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* The programs `gitolite` and `gitolite-shell`, and the directories
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`commands`, `lib`, `syntactic-sugar`, `triggers`, and `VREF` must all be
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in the same directory.
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It doesn't matter what this directory is. As an example, Fedora keeps
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git's 150 executables in /usr/libexec/git-core, so /usr/libexec/gitolite
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may be a good choice; it's upto you.
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The rest of this section will assume you chose /usr/libexec/gitolite as
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the location. Adjust as needed.
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* The program `/usr/libexec/gitolite/gitolite` must then be *symlinked* to
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some directory in the PATH. Do not *copy* it; it must be a symlink.
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* The `Gitolite` subdirectory in `/usr/libexec/gitolite/lib` can stay there,
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**OR**, if your distro policies don't allow that, can be put in any
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directory in perl's `@INC` path (such as `/usr/share/perl5/vendor_perl`).
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* Finally, a file called `/usr/libexec/gitolite/VERSION` must contain a
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suitable version string.
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## #migr migrating
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<font color="gray">This section is about migrating from older gitolite to
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"g3". If you're migrating from gitosis, see [here][gsmigr].</font>
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First things first: g2 will be supported for a good long time for critical
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bugs, although enhancements and new features won't happen.
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If you're an existing (gitolite v1.x or v2.x) user, and wish to migrate , here
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are the steps:
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### pre-migration checks
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1. Check the [dev-status][] page to make sure all the features you want have
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been implemented in g3.
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2. Read the [g2 migration][g2migr] page to see what changes affect you and
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your users, and how much time it might take you to migrate. (The closer
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you were to a default install of the old gitolite, the less time a
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migration will take.)
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This includes at least running `check-g2-compat` to see what are the big
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issues you might need to address during the migration.
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### the actual migration
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(Note: You may also like the [example migration][g2migr-example] page).
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**Note**: nothing in any of the gitolite install/setup/etc will ever touch the
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*data* in any repository except the gitolite-admin repo. The only thing it
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will normally touch in normal repos is the `update` hook.
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**Note: all migration happens on the server; you do not need your
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workstation**.
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1. Carefully wipe out the old gitolite:
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* The **code**
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* Delete or move away all the old gitolite scripts. Check the path
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to the gl-auth-command in `~/.ssh/authorized_keys` if you forgot
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where you put them.
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* Delete or move away the two directories named in the two variables
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`GL_PACKAGE_CONF` and `GL_PACKAGE_HOOKS` in `~/.gitolite.rc`.
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* The **rc file**
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* Rename `~/.gitolite.rc` to something else.
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* The **admin repo**
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* clone `~/repositories/gitolite-admin.git` to someplace safe
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* then delete `~/repositories/gitolite-admin.git`
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(Make sure you do not delete any other repos!)
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* The **admin directory**.
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* If you need to preserve logs, move the ~/.gitolite/logs` directory
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somewhere else.
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* If you added any custom hooks and wish to preserve them, move the
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~/.gitolite/hooks` directory somewhere else.
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* Delete `~/.gitolite`.
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2. Read about [presetting][rc-preset] the rc file; if you're using any
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variables listed as requiring preset, follow those instructions to create
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your new rc file.
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3. Install gitolite g3; see [quick install and setup][qi] or [install][]
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followed by [setup][]. However, the 'setup' step need not supply a
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private key. You can run it as `gitolite setup -a admin`.
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NOTE: ignore any 'split conf not set, gl-conf present...' errors at this
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time. You may see none, some, or many. It does not matter right now.
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4. Make sure your gitolite-admin clone has the correct pubkey for the
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administrator in its `keydir` directory, then run [`gitolite push
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-f`][bypass] to overwrite the "default" admin repo created by the install.
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5. Handle any errors, look for migration issues, etc., as described in the
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links at the top of this page.
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This also includes building up your new `~/.gitolite.rc` file.
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You're done.
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