Package Building Procedures
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# 13 How to configure a new FreeBSD branch

When a new branch is created, some work needs to be done to specify that the previous branch is no longer equivalent to `HEAD`. The following instructions apply to the previous branch number:

- (new codebase) Edit `/var/portbuild/conf/server.conf` with the following changes:

  - Add `new-branch` to `SRC_BRANCHES`.

  - For what was previously head, change `SRC_BRANCH_`branch`_TAG` to `RELENG_`branch`_0`.

  - Add `SRC_BRANCH_`new-branch`_TAG` `=.` (literal period).

- (new codebase) Run `/var/portbuild/updatesnap` manually.

- (Only for old codebase) Create a new zfs filesystem for sources:

      zfs create a/snap/src-branch

- (Only necessary for old codebase): Checkout a `src` tree in the new filesystem:

      cvs -Rq -d /r/ncvs co -d src-branch-r RELENG_branch

- (Only necessary for old codebase): Edit the master copy of `Tools/portbuild/portbuild.conf`.

- (Only necessary for old codebase): For each arch, edit its copy of the above in `/var/portbuild/`arch`/portbuild.conf`.

- (Only necessary for old codebase): Edit `/var/portbuild/scripts/buildenv`.

- (Only necessary for old codebase): Add a link from `/var/portbuild/scripts/dopackages` to `/var/portbuild/scripts/dopackages.`branch``.

- (Only necessary for old codebase): Modify `HEAD_BRANCH` and `NON_HEAD_BRANCHES` in `/var/portbuild/scripts/updatesnap`.

- (Only necessary for old codebase): Add the `snap` directory to `/var/portbuild/scripts/zexpire`.

- (Only necessary for old codebase): In the `/var/portbuild/errorlogs/` directory, create links for the webserver:

      ln -s ../arch/branch/builds/latest/bak/errors arch-branch-full
      ln -s ../arch/branch/builds/latest/bak/logs arch-branch-full-logs
      ln -s ../arch/branch/builds/latest/errors arch-branch-latest
      ln -s ../arch/branch/builds/latest/logs arch-branch-latest-logs
      ln -s ../arch/branch/builds/latest/bak/packages arch-branch-packages-full
      ln -s ../arch/branch/builds/latest/packages arch-branch-packages-latest

- Kick-start the build for the branch with

      build create arch branch

- Create `bindist.tar` .

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