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", modes = {"tools/build_defs/docker/build_test.sh": "0755"}, ) pkg_tar( name = "debian-data", extension = "tar.gz", deps = [ ":bazel-bin", ":bazel-tools", ], ) pkg_deb( name = "bazel-debian", architecture = "amd64", built_using = "bazel (0.1.1)", 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.

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.