# Packaging for Bazel

## Deprecated

These rules have been extracted from the Bazel sources and are now available at
[bazelbuild/rules_pkg](https://github.com/bazelbuild/rules_pkg/releases)
 [(docs)](https://github.com/bazelbuild/rules_pkg/tree/master/pkg).

Issues and PRs against the built-in versions of these rules will no longer be
addressed. This page will exist for reference until the code is removed from
Bazel. You can test the removal of these rules with Bazel at version >= 0.28.0.

```
bazel build --//tools/build_defs/pkg:incompatible_no_build_defs_pkg  target...
```

For more information, follow [issue 8857](https://github.com/bazelbuild/bazel/issues/8857)

## rules_pkg

<div class="toc">
  <h2>Rules</h2>
  <ul>
    <li><a href="#pkg_tar">pkg_tar</a></li>
    <li><a href="#pkg_deb">pkg_deb</a></li>
  </ul>
</div>

## Overview

These build rules are used for building various packaging such as tarball
and debian package.

<a name="basic-example"></a>
## Basic Example

This example is a simplification of the debian packaging of Bazel:

```python
load("@bazel_tools//tools/build_defs/pkg:pkg.bzl", "pkg_tar", "pkg_deb")

pkg_tar(
    name = "bazel-bin",
    strip_prefix = "/src",
    package_dir = "/usr/bin",
    srcs = ["//src:bazel"],
    mode = "0755",
)

pkg_tar(
    name = "bazel-tools",
    strip_prefix = "/",
    package_dir = "/usr/share/lib/bazel/tools",
    srcs = ["//tools:package-srcs"],
    mode = "0644",
)

pkg_tar(
    name = "debian-data",
    extension = "tar.gz",
    deps = [
        ":bazel-bin",
        ":bazel-tools",
    ],
)

pkg_deb(
    name = "bazel-debian",
    architecture = "amd64",
    built_using = "unzip (6.0.1)",
    data = ":debian-data",
    depends = [
        "zlib1g-dev",
        "unzip",
    ],
    description_file = "debian/description",
    homepage = "http://bazel.build",
    maintainer = "The Bazel Authors <bazel-dev@googlegroups.com>",
    package = "bazel",
    version = "0.1.1",
)
```

Here, the Debian package is built from three `pkg_tar` targets:

 - `bazel-bin` creates a tarball with the main binary (mode `0755`) in
   `/usr/bin`,
 - `bazel-tools` create a tarball with the base workspace (mode `0644`) to
   `/usr/share/bazel/tools` ; the `modes` attribute let us specifies executable
   files,
 - `debian-data` creates a gzip-compressed tarball that merge the three previous
   tarballs.

`debian-data` is then used for the data content of the debian archive created by
`pkg_deb`.

<a name="future"></a>
## Future work

 - Support more format, especially `pkg_zip`.
 - Maybe a bit more integration with the `docker_build` rule.

<a name="pkg_tar"></a>
## pkg_tar

```python
pkg_tar(name, extension, strip_prefix, package_dir, srcs,
mode, modes, deps, symlinks)
```

Creates a tar file from a list of inputs.

<table class="table table-condensed table-bordered table-params">
  <colgroup>
    <col class="col-param" />
    <col class="param-description" />
  </colgroup>
  <thead>
    <tr>
      <th colspan="2">Attributes</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><code>name</code></td>
      <td>
        <code>Name, required</code>
        <p>A unique name for this rule.</p>
      </td>
    </tr>
    <tr>
      <td><code>extension</code></td>
      <td>
        <code>String, default to 'tar'</code>
        <p>
            The extension for the resulting tarball. The output
            file will be '<i>name</i>.<i>extension</i>'. This extension
            also decide on the compression: if set to <code>tar.gz</code>
            or <code>tgz</code> then gzip compression will be used and
            if set to <code>tar.bz2</code> or <code>tar.bzip2</code> then
            bzip2 compression will be used.
        </p>
      </td>
    </tr>
    <tr>
      <td><code>strip_prefix</code></td>
      <td>
        <code>String, optional</code>
        <p>Root path of the files.</p>
        <p>
          The directory structure from the files is preserved inside the
          tarball but a prefix path determined by <code>strip_prefix</code>
          is removed from the directory structure. This path can
          be absolute from the workspace root if starting with a <code>/</code> or
          relative to the rule's directory. A relative path may start with "./"
          (or be ".") but cannot use ".." to go up level(s). By default, the
          <code>strip_prefix</code> attribute is unused and all files are supposed to have no
          prefix. A <code>strip_prefix</code> of "" (the empty string) means the
          same as the default.
        </p>
      </td>
    </tr>
    <tr>
      <td><code>package_dir</code></td>
      <td>
        <code>String, optional</code>
        <p>Target directory.</p>
        <p>
          The directory in which to expand the specified files, defaulting to '/'.
          Only makes sense accompanying files.
        </p>
      </td>
    </tr>
    <tr>
      <td><code>srcs</code></td>
      <td>
        <code>List of files, optional</code>
        <p>File to add to the layer.</p>
        <p>
          A list of files that should be included in the archive.
        </p>
      </td>
    </tr>
    <tr>
      <td><code>mode</code></td>
      <td>
        <code>String, default to 0555</code>
        <p>
          Set the mode of files added by the <code>files</code> attribute.
        </p>
      </td>
    </tr>
    <tr>
      <td><code>mtime</code></td>
      <td>
        <code>int, seconds since Jan 1, 1970, default to -1 (ignored)</code>
        <p>
          Set the mod time of files added by the <code>files</code> attribute.
        </p>
      </td>
    </tr>
    <tr>
      <td><code>portable_mtime</code></td>
      <td>
        <code>bool, default True</code>
        <p>
          Set the mod time of files added by the <code>files</code> attribute
          to a 2000-01-01.
        </p>
      </td>
    </tr>
    <tr>
      <td><code>modes</code></td>
      <td>
        <code>Dictionary, default to '{}'</code>
        <p>
          A string dictionary to change default mode of specific files from
          <code>files</code>. Each key should be a path to a file before
          appending the prefix <code>package_dir</code> and the corresponding
          value the octal permission of to apply to the file.
        </p>
        <p>
          <code>
          modes = {
           "tools/py/2to3.sh": "0755",
           ...
          },
          </code>
        </p>
      </td>
    </tr>
    <tr>
      <td><code>owner</code></td>
      <td>
        <code>String, default to '0.0'</code>
        <p>
          <code>UID.GID</code> to set the default numeric owner for all files
          provided in <code>files</code>.
        </p>
      </td>
    </tr>
    <tr>
      <td><code>owners</code></td>
      <td>
        <code>Dictionary, default to '{}'</code>
        <p>
          A string dictionary to change default owner of specific files from
          <code>files</code>. Each key should be a path to a file before
          appending the prefix <code>package_dir</code> and the corresponding
          value the <code>UID.GID</code> numeric string for the owner of the
          file. When determining owner ids, this attribute is looked first then
          <code>owner</code>.
        </p>
        <p>
          <code>
          owners = {
           "tools/py/2to3.sh": "42.24",
           ...
          },
          </code>
        </p>
      </td>
    </tr>
    <tr>
      <td><code>ownername</code></td>
      <td>
        <code>String, optional</code>
        <p>
          <code>username.groupname</code> to set the default owner for all files
          provided in <code>files</code> (by default there is no owner names).
        </p>
      </td>
    </tr>
    <tr>
      <td><code>ownernames</code></td>
      <td>
        <code>Dictionary, default to '{}'</code>
        <p>
          A string dictionary to change default owner of specific files from
          <code>files</code>. Each key should be a path to a file before
          appending the prefix <code>package_dir</code> and the corresponding
          value the <code>username.groupname</code> string for the owner of the
          file. When determining ownernames, this attribute is looked first then
          <code>ownername</code>.
        </p>
        <p>
          <code>
          owners = {
           "tools/py/2to3.sh": "leeroy.jenkins",
           ...
          },
          </code>
        </p>
      </td>
    </tr>
    <tr>
      <td><code>deps</code></td>
      <td>
        <code>List of labels, optional</code>
        <p>Tar files to extract and include in this tar package.</p>
        <p>
          A list of tarball labels to merge into the output tarball.
        </p>
      </td>
    </tr>
    <tr>
      <td><code>symlinks</code></td>
      <td>
        <code>Dictionary, optional</code>
        <p>Symlinks to create in the output tarball.</p>
        <p>
          <code>
          symlinks = {
           "/path/to/link": "/path/to/target",
           ...
          },
          </code>
        </p>
      </td>
    </tr>
    <tr>
      <td><code>remap_paths</code></td>
      <td>
        <code>Dictionary, optional</code>
        <p>Source path prefixes to remap in the tarfile.</p>
        <p>
          <code>
          remap_paths = {
           "original/path/prefix": "replaced/path",
           ...
          },
          </code>
        </p>
      </td>
    </tr>
  </tbody>
</table>

<a name="pkg_deb"></a>
### pkg_deb

```python
pkg_deb(name, data, package, architecture, maintainer, preinst, postinst, prerm, postrm, version, version_file, description, description_file, built_using, built_using_file, priority, section, homepage, depends, suggests, enhances, conflicts, predepends, recommends)
```

Create a debian package. See <a
href="http://www.debian.org/doc/debian-policy/ch-controlfields.html">http://www.debian.org/doc/debian-policy/ch-controlfields.html</a>
for more details on this.

<table class="table table-condensed table-bordered table-params">
  <colgroup>
    <col class="col-param" />
    <col class="param-description" />
  </colgroup>
  <thead>
    <tr>
      <th colspan="2">Attributes</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><code>name</code></td>
      <td>
        <code>Name, required</code>
        <p>A unique name for this rule.</p>
      </td>
    </tr>
    <tr>
      <td><code>data</code></td>
      <td>
        <code>File, required</code>
        <p>
          A tar file that contains the data for the debian package (basically
          the list of files that will be installed by this package).
        </p>
      </td>
    </tr>
    <tr>
      <td><code>package</code></td>
      <td>
        <code>String, required</code>
        <p>The name of the package.</p>
      </td>
    </tr>
    <tr>
      <td><code>architecture</code></td>
      <td>
        <code>String, default to 'all'</code>
        <p>The architecture that this package target.</p>
        <p>
          See <a href="http://www.debian.org/ports/">http://www.debian.org/ports/</a>.
        </p>
      </td>
    </tr>
    <tr>
      <td><code>maintainer</code></td>
      <td>
        <code>String, required</code>
        <p>The maintainer of the package.</p>
      </td>
    </tr>
    <tr>
      <td><code>preinst</code>, <code>postinst</code>, <code>prerm</code> and <code>postrm</code></td>
      <td>
        <code>Files, optional</code>
        <p>
          Respectively, the pre-install, post-install, pre-remove and
          post-remove scripts for the package.
        </p>
        <p>
          See <a href="http://www.debian.org/doc/debian-policy/ch-maintainerscripts.html">http://www.debian.org/doc/debian-policy/ch-maintainerscripts.html</a>.
        </p>
      </td>
    </tr>
    <tr>
      <td><code>config</code></td>
      <td>
        <code>File, optional</code>
        <p>
          config file used for debconf integration.
        </p>
        <p>
          See <a href="https://www.debian.org/doc/debian-policy/ch-binary.html#prompting-in-maintainer-scripts">https://www.debian.org/doc/debian-policy/ch-binary.html#prompting-in-maintainer-scripts</a>.
        </p>
      </td>
    </tr>
    <tr>
      <td><code>templates</code></td>
      <td>
        <code>File, optional</code>
        <p>
          templates file used for debconf integration.
        </p>
        <p>
          See <a href="https://www.debian.org/doc/debian-policy/ch-binary.html#prompting-in-maintainer-scripts">https://www.debian.org/doc/debian-policy/ch-binary.html#prompting-in-maintainer-scripts</a>.
        </p>
      </td>
    </tr>

    <tr>
      <td><code>conffiles</code>, <code>conffiles_file</code></td>
      <td>
        <code>String list or File, optional</code>
        <p>
          The list of conffiles or a file containing one conffile per
          line. Each item is an absolute path on the target system
          where the deb is installed.
        </p>
        <p>
          See <a href="https://www.debian.org/doc/manuals/debian-faq/ch-pkg_basics.en.html#s-conffile">https://www.debian.org/doc/manuals/debian-faq/ch-pkg_basics.en.html#s-conffile</a>.
        </p>
      </td>
    </tr>
    <tr>
      <td><code>version</code>, <code>version_file</code></td>
      <td>
        <code>String or File, required</code>
        <p>
          The package version provided either inline (with <code>version</code>)
          or from a file (with <code>version_file</code>).
        </p>
      </td>
    </tr>
    <tr>
      <td><code>description</code>, <code>description_file</code></td>
      <td>
        <code>String or File, required</code>
        <p>
          The package description provided either inline (with <code>description</code>)
          or from a file (with <code>description_file</code>).
        </p>
      </td>
    </tr>
    <tr>
      <td><code>built_using</code>, <code>built_using_file</code></td>
      <td>
        <code>String or File</code>
        <p>
          The tool that were used to build this package provided either inline
          (with <code>built_using</code>) or from a file (with <code>built_using_file</code>).
        </p>
      </td>
    </tr>
    <tr>
      <td><code>priority</code></td>
      <td>
        <code>String, default to 'optional'</code>
        <p>The priority of the package.</p>
        <p>
          See <a href="http://www.debian.org/doc/debian-policy/ch-archive.html#s-priorities">http://www.debian.org/doc/debian-policy/ch-archive.html#s-priorities</a>.
        </p>
      </td>
    </tr>
    <tr>
      <td><code>section</code></td>
      <td>
        <code>String, default to 'contrib/devel'</code>
        <p>The section of the package.</p>
        <p>
          See <a href="http://www.debian.org/doc/debian-policy/ch-archive.html#s-subsections">http://www.debian.org/doc/debian-policy/ch-archive.html#s-subsections</a>.
        </p>
      </td>
    </tr>
    <tr>
      <td><code>homepage</code></td>
      <td>
        <code>String, optional</code>
        <p>The homepage of the project.</p>
      </td>
    </tr>
    <tr>
      <td>
        <code>depends</code>, <code>suggests</code>, <code>enhances</code>,
        <code>conflicts</code>, <code>predepends</code> and <code>recommends</code>.
      </td>
      <td>
        <code>String list, optional</code>
        <p>The list of dependencies in the project.</p>
        <p>
          See <a href="http://www.debian.org/doc/debian-policy/ch-relationships.html#s-binarydeps">http://www.debian.org/doc/debian-policy/ch-relationships.html#s-binarydeps</a>.
        </p>
      </td>
    </tr>
  </tbody>
</table>
