# DeveloperWiki:HOWTO Be A Packager

## Follow Package Guidelines

Package guidelines can be found in the Arch Linux documentation. Please follow them closely.

Arch packaging standards

## How To Use SVN

### Non-recursive checkout

For core, extra, testing and staging repos:

      svn checkout -N svn+ssh://svn-packages@repos.archlinux.org/srv/repos/svn-packages/svn svn-packages

For community, community-testing, community-staging, multilib, multilib-testing, multilib-staging:

      svn checkout -N svn+ssh://svn-community@repos.archlinux.org/srv/repos/svn-community/svn svn-community

This creates two directories named "svn-packages" and "svn-community" which contains nothing. It does, however, know that it is an svn checkout.

### Checkout a package

You can use `archco` to fetch a dir in the svn-packages repository or `communityco` to fetch a dir from the svn-community repo. You don't need to be in an svn checkout to do that.

Otherwise you have to cd the svn checkout and exec:

      svn update package-name

This will pull the package you requested into your checkout. From now on, any time you `svn update` at the top level, this will be updated as well.

### Updating all packages

      cd svn-packages
      svn update

### Adding a package

      cd svn-packages
      mkdir -p new-package/{repos,trunk}
      $EDITOR new-package/trunk/PKGBUILD
      svn add new-package
      svn propset svn:keywords "Id" new-package/trunk/PKGBUILD
      svn commit

### Removing a package

      ssh repos.archlinux.org
      /packages/db-remove repo-name arch packagename
      i.e. /packages/db-remove core i686 openssh

And if you want to really kill the package, you will need to

    svn rm

the entire package directory after the above steps and commit the deletion.

Sometime the previous command yields:

       svn: E155035: "'/path/to/pkg/<PKG>' is the root of a working copy and cannot be deleted"

You can remotely remove it with:

       svn rm svn+ssh://svn-packages@repos.archlinux.org/srv/repos/svn-packages/svn/<PKG>

### Moving a package between repos

      ssh repos.archlinux.org
      /packages/db-move fromrepo torepo packagename
      i.e. /packages/db-move testing core openssh

Alternatively, the move from testing is so common we have helper scripts:

      /packages/testing2x openssh bzip2 coreutils
      /packages/testing2x64 openssh bzip2 coreutils

These scripts only work if the packages on the commandline are either in core or extra. If a package is only in testing, you have to use testing2core, testing2core64, testing2extra or testing2extra64.

### "Tagging" releases

Fetch the package dir using `archco` or `communityco` or from an svn checkout. Then

      cd package-name/trunk
      archrelease extra-i686

This makes an svn copy of the trunk entries in a directory named "extra-i686" indicating that this package is in the extra repository for the i686 architecture. This will be done automatically when using tools such as extrapkg (see below)

### Cleaning up your checkout

Since you are now maintaining a non-recursive checkout, you may want to get rid of packages that you are no longer tracking:

      svn update package1 package2 --set-depth exclude

Or if you want an empty toplevel again:

      svn update --set-depth empty

## The Process

### Checkout/update your local repository

      cd svn-packages
      svn update

### Update the needed package

      svn update some-package

### Traverse to the package's trunk directory

      cd some-package/trunk/

### Change and build

      $EDITOR PKGBUILD
      makechrootpkg

It is mandatory to build your package using a clean chroot

### Run namcap on both PKGBUILD and package

      namcap PKGBUILD
      namcap some-package-1.0-1-i686.pkg.tar.gz

### Use devtools to upload and commit

This is repo dependent. For 'extra', you use 'extrapkg'. 'testingpkg' for 'testing', etc

      extrapkg "A commit message"

### Update the repository

Use 'db-update'. It will find new packages for any repository and it manages both i686 and x86_64 architectures at once, if present. For example:

      ssh repos.archlinux.org
      /packages/db-update

## Staging Directories

Staging directories are needed on repos.archlinux.org for uploading of packages. The following structure is NOT automatically created. You must do it yourself:

       ~/staging/
        |-- core/
        |-- extra/
        `-- testing/

These directories are searched by the db scripts to find new packages and those slated for removal.

## Miscellaneous Stuff

### SVN $Id$ tags

$Id$ tags are a nice helper for PKGBUILDs and should be added to the top of all PKGBUILDs in a comment. However, svn needs an additional push to know that it should modify this line on checkout.

      svn propset svn:keywords "Id" my-package/trunk/PKGBUILD

### Package checking tools

#### namcap

Run on both your PKGBUILD and package to check for common packaging problems.

#### checkpkg

Run (as root) in the directory with your freshly built package to get a file list diff compared with the package version currently in the repos.

### Commit messages

Please try to write concise commit messages. If the package is simply an upstream change, that is fine, but if anything more complex changes, please inform us by writing an appropriate commit message.

### Avoid having to enter your password all the time

When working with extrapkg and the other devtools, quite a few ssh connections are established, even when using ssh keys and the ssh agent. You can work around that.

Add this to your $HOME/.ssh/config:

    ControlPath /home/<your username>/.ssh/master-%h-%p-%r

    Host repos.archlinux.org

Now, before you start working, open a ssh session with

    ssh -M repos.archlinux.org

Enter your password and leave that session open until you are finished. All ssh sessions (including scp and svn+ssh) will now be tunneled through this connection.

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