Packaging for Bazel

Overview

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

Basic Example

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

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.

Future work

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

pkg_tar

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

Creates a tar file from a list of inputs.

pkg_deb

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 http://www.debian.org/doc/debian-policy/ch-controlfields.html for more details on this.

<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>

pkg_rpm

pkg_rpm(name, spec_file, architecture, version, version_file, changelog, data)

Create an RPM package. See http://rpm.org/documentation.html for more details on this.