Provided by: sbuild_0.83.1ubuntu1_all 
NAME
sbuild - build debian packages from source
SYNOPSIS
sbuild [-h|--help | -V|--version] [-v|--verbose | -q|--quiet] [-D|--debug] [-A|--arch-all]
[--archive=archive] [-d|--dist=distribution] [-c|--chroot=chroot] [--chroot-
mode=schroot|sudo|autopkgtest|unshare] [--arch=architecture] [--arch-any | --no-arch-any]
[--build=architecture] [--host=architecture] [--profiles=profile[,...]] [-s|--source]
[--force-orig-source] [--make-binNMU=changelog-entry] [--binNMU=NMU-version]
[--append-to-version=string] [--binNMU-timestamp=timestamp] [--binNMU-changelog=changelog]
[--build-dir=directory] [--add-depends=dependency] [--add-conflicts=dependency] [--add-
depends-arch=dependency] [--add-conflicts-arch=dependency] [--add-
depends-indep=dependency] [--add-conflicts-indep=dependency] [-m|--maintainer=maintainer]
[-e|--uploader=uploader] [-k|--keyid=key-id] [--source-only-changes]
[--no-source-only-changes] [-j|--jobs=n] [--debbuildopt=option] [--debbuildopts=options]
[--dpkg-source-opt=options] [--dpkg-source-opts=options] [--dpkg-file-suffix=suffix]
[-p|--purge=purge-mode] [--purge-build=purge-mode] [--purge-deps=purge-mode]
[--purge-session=purge-mode] [-b|--batch] [-n|--nolog] [--clean-source]
[--no-clean-source] [--run-lintian] [--no-run-lintian] [--lintian-opt=options]
[--lintian-opts=options] [--run-piuparts] [--no-run-piuparts] [--piuparts-opt=options]
[--piuparts-opts=options] [--piuparts-root-arg=options] [--piuparts-root-args=options]
[--run-autopkgtest] [--no-run-autopkgtest] [--autopkgtest-opt=options]
[--autopkgtest-opts=options] [--autopkgtest-root-arg=options]
[--autopkgtest-root-args=options] [--pre-build-commands=string]
[--chroot-setup-commands=string] [--chroot-update-failed-commands=string]
[--build-deps-failed-commands=string] [--starting-build-commands=string]
[--finished-build-commands=string] [--build-failed-commands=string]
[--chroot-cleanup-commands=string] [--post-build-commands=string]
[--post-build-failed-commands=string] [--anything-failed-commands=string]
[--log-external-command-output] [--log-external-command-error] [--setup-hook=hook-script]
[--build-dep-resolver=resolver] [--resolve-alternatives|--no-resolve-alternatives]
[--extra-package=package.deb] [--extra-repository=spec] [--extra-repository-key=file.asc]
[--build-path=string] [--autopkgtest-virt-server=schroot|lxc|chroot|qemu|ssh]
[--autopkgtest-virt-server-opt=string] [--autopkgtest-virt-server-opts=options]
[--purge-extra-packages] [--bd-uninstallable-explainer=dose3|apt|none] [PACKAGE[.dsc]]
DESCRIPTION
sbuild rebuilds Debian binary packages from the corresponding Debian source, installing
any missing source dependencies. The build takes place in a dedicated clean build
environment, rather than on the host system. For an overview of the supported chroot
backends see the section CHROOT MODES.
sbuild can fetch the Debian source over a network, or it can use locally available
sources.
sbuild is given a packages to process as the argument PACKAGE[.dsc]. This argument is in
the form of either a debianized package source directory, a source package name along with
a version in the form package_version, a source package name, or a .dsc file. If no
arguments are given, the current working directory is passed as an argument.
For arguments given as source directories, dpkg-source is first run to produce a source
.dsc file. Then, the package is built using the .dsc produced. For arguments in the form
package_version or package, apt is used to download the source package. For arguments
given as a .dsc file, sbuild builds the source packages directly. For .dsc files in remote
locations, the source packages are downloaded first, then built.
It is also possible to run external commands with sbuild. See the section EXTERNAL
COMMANDS for more on this.
sbuild mails the build logs to a user. It is configured by the configuration files
/etc/sbuild/sbuild.conf and ~/.sbuildrc. An example sbuildrc is available in
/usr/share/doc/sbuild/examples/example.sbuildrc. A custom path to a configuration file
can also be specified through setting the SBUILD_CONFIG environment variable to the path
of an additional configuration file.
You can build either using a local package with its .dsc file or a remote one by
specifying an explicit dpkg version.
OPTIONS
Options set on the command line overwrite settings made in the configuration file.
-h, --help
Display this manual.
-V, --version
Print version information.
--add-depends=dependency
--add-conflicts=dependency
--add-depends-arch=dependency
--add-conflicts-arch=dependency
--add-depends-indep=dependency
--add-conflicts-indep=dependency
These options add a build dependencies to the source package being built, in
addition to the build dependency information specified in debian/control. These
dependencies will be concatenated directly to the Build-Depends, Build-Conflicts,
Build-Depends-Arch, Build-Conflicts-Arch, Build-Depends-Indep and Build-Conflicts-
Indep dependencies, respectively. The options may be used any number of times to
add multiple dependencies. The format is identical to the format used in
debian/control. These command line options append to the MANUAL_DEPENDS,
MANUAL_CONFLICTS, MANUAL_DEPENDS_ARCH, MANUAL_CONFLICTS_ARCH, MANUAL_DEPENDS_INDEP
and MANUAL_CONFLICTS_INDEP configuration variables, respectively. See
sbuild.conf(5) for more information.
--arch=architecture
Build using the architecture specified. A chroot named $distribution-$arch-sbuild
or $distribution-arch is searched for, in that order of preference. The chroot
must be installed and configured appropriately to build as that architecture, e.g.
using personality=linux32 to build i386 packages on an amd64 system. Note that
this option is equivalent to "--host=architecture --build=architecture". This
command line option sets the HOST_ARCH and BUILD_ARCH configuration variables. See
sbuild.conf(5) for more information.
--host=architecture
Build using the host architecture specified. If $host and $build don't match, a
chroot named $distribution-$build-$host-sbuild or $distribution-$build-$host is
searched for, falling back to $distribution-$build-sbuild or $distribution-$build,
in that order of preference. This option is only useful for cross-building when
used together with --build. This command line option sets the HOST_ARCH
configuration variable. See sbuild.conf(5) for more information.
--build=architecture
Build using the build architecture specified. This option is only useful for
cross-building when used together with --host. If --build is not specified, the
default system architecture is assumed. This command line option sets the
BUILD_ARCH configuration variable. See sbuild.conf(5) for more information.
-A, --arch-all
Also build Architecture: all packages. This is the default behaviour for native
builds. This option is the opposite of --no-arch-all. See the section BUILD
ARTIFACTS for more information. This command line option sets the BUILD_ARCH_ALL
configuration variable. See sbuild.conf(5) for more information.
--no-arch-all
Do not build Architecture: all packages. This is the default behaviour for cross
builds. This option is the opposite of --arch-all. See the section BUILD ARTIFACTS
for more information. This command line option sets the BUILD_ARCH_ALL
configuration variable. See sbuild.conf(5) for more information.
--arch-any
Build Architecture: any packages. This is the default behavior. This option is the
opposite of --no-arch-any. See the section BUILD ARTIFACTS for more information.
This command line option sets the BUILD_ARCH_ANY configuration variable. See
sbuild.conf(5) for more information.
--no-arch-any
Do not build Architecture: any packages. This option is the opposite of --arch-any
and only useful when used together with --arch-all or --source. See the section
BUILD ARTIFACTS for more information. This command line option sets the
BUILD_ARCH_ANY configuration variable. See sbuild.conf(5) for more information.
-b, --batch
Operate in batchmode, i.e. write a build-progress file during execution and files
on shutdown to facilitate a clean restart. This command line option sets the
BATCH_MODE configuration variable. See sbuild.conf(5) for more information.
-c, --chroot=chroot
Specifies the chroot to use. The effect of this option depends on the selected
chroot mode. With the schroot chroot mode, this option specifies the schroot name
or alias to use. If not specified, the default is the first of schroot name or
alias that matches $distribution-$arch-sbuild, $distribution-sbuild,
$distribution-$arch or $distribution that exists. With the sudo chroot mode, this
option specifies the chroot directory to use. The directory is either expected in
/etc/sbuild/chroot (in buildd sbuild mode) or in the build directory (see
--build-dir), prefixed with "chroot-" (in user sbuild mode, the default). If not
specified, the default is to search for a directory in the respective locations
named in the same way as for the schroot mode. With the unshare chroot mode, if
this option is a path, then it specifies the location of the chroot tarball
directly. Otherwise, a tarball with equal basename from ~/.cache/sbuild will be
used. If not specified, the default is to search for a tarball named in the same
way as for the schroot mode under ~/.cache/sbuild. With the autopkgtest chroot
mode this option has no effect. The --autopkgtest-virt-server-opts are used to
pick the chroot in autopkgtest chroot mode. This command line option sets the
CHROOT configuration variable. See sbuild.conf(5) for more information.
--chroot-mode=schroot|sudo|autopkgtest|unshare
Select the desired chroot mode. Four values are possible: schroot (the default),
sudo (which uses sudo to execute chroot in a directory from /etc/sbuild/chroot or
./chroot), autopkgtest which uses the autopkgtest-virt-* binaries (selectable via
the --autopkgtest-virt-server option) and unshare (which uses linux namespaces for
chroot and doesn't require superuser privileges). See the section CHROOT MODES for
more information. This command line option sets the CHROOT_MODE configuration
variable. See sbuild.conf(5) for more information.
-d, --dist=distribution
Explicitly set the distribution for the package build. This will be selecting the
correct chroot to use and also sets the value of the Distribution field in the
created .changes file. Setting this option is necessary when giving sbuild a .dsc
file or a plain source package name to build. In the latter case it specifies the
distribution the source package is fetched from. This command line option sets the
DISTRIBUTION configuration variable. See sbuild.conf(5) for more information.
--archive=archive
Communicate with specified archive. This command line option sets the ARCHIVE
configuration variable. See sbuild.conf(5) for more information.
-D, --debug
Enable debug output.
--apt-clean
--no-apt-clean
Run (or do not run) apt-get clean in the chroot before executing the build,
overriding the default setting. This command line option sets the APT_CLEAN
configuration variable. See sbuild.conf(5) for more information.
--apt-update
--no-apt-update
Run (or do not run) apt-get update in the chroot before executing the build,
overriding the default setting. This option has no effect on updating the internal
sbuild apt repository, the repository for extra packages (see --extra-package) and
the repositories given via --extra-repository. These are always updated. Thus, this
option only influences updates of the default repositories of the chroot. This
command line option sets the APT_UPDATE configuration variable. See sbuild.conf(5)
for more information.
--apt-upgrade
--no-apt-upgrade
Run (or do not run) apt-get upgrade in the chroot before executing the build,
overriding the default setting. This command line option sets the APT_UPGRADE
configuration variable. See sbuild.conf(5) for more information.
--apt-distupgrade
--no-apt-distupgrade
Run (or do not run) apt-get distupgrade in the chroot before executing the build,
overriding the default setting. This command line option sets the APT_DISTUPGRADE
configuration variable. See sbuild.conf(5) for more information.
-m, --maintainer=maintainer
Specify the identity to use for GPG signing packages, and also used as the
maintainer for binary NMUs. This does not normally require setting (it defaults to
the uploader). This command line option sets the MAINTAINER_NAME configuration
variable. See sbuild.conf(5) for more information.
-e, --uploader=uploader
Passed to dpkg-genchanges and is used to set the Changed-by: field in the .changes
file(s). This command line option sets the UPLOADER_NAME configuration variable.
See sbuild.conf(5) for more information.
-k, --keyid=key-id
Passed to debsign and is used to set the key to sign the .changes file(s). Default
is not using any key and not signing the .changes file(s). This command line
option sets the KEY_ID configuration variable. See sbuild.conf(5) for more
information.
--source-only-changes
--no-source-only-changes
In addition to the .changes file generated by dpkg-buildpackage, also produce (or
don't produce) a .changes file suitable for a source-only upload. If requested by
--keyid, this .changes file will also be signed by debsign. This command line
option sets the SOURCE_ONLY_CHANGES configuration variable. See sbuild.conf(5) for
more information.
-j, --jobs=n
Number of jobs to run simultaneously. Passed through to dpkg-buildpackage. This
command line option appends the appropriate -j option to the
DPKG_BUILDPACKAGE_USER_OPTIONS configuration variable. See sbuild.conf(5) for more
information.
--debbuildopt=option
Pass the specified option directly to dpkg-buildpackage in addition to the options
already passed by sbuild. This option can be passed multiple times (once per dpkg-
buildpackage option) and can be freely mixed with the --debbuildopts option.
Options will be passed to dpkg-buildpackage in the order that the --debbuildopt and
--debbuildopts options are given on the command line. This command line option
appends to the DPKG_BUILDPACKAGE_USER_OPTIONS configuration variable. See
sbuild.conf(5) for more information.
--debbuildopts=options
Pass the specified options directly to dpkg-buildpackage in addition to the options
already passed by sbuild. The argument will be split by whitespaces and the
resulting array passed to the dpkg-buildpackage invocation. If any options contain
spaces, use --debbuildopt for them. This option can be passed multiple times and
can be freely mixed with the --debbuildopt option. Options will be passed to
dpkg-buildpackage in the order that the --debbuildopt and --debbuildopts options
are given on the command line. This command line option appends to the
DPKG_BUILDPACKAGE_USER_OPTIONS configuration variable. See sbuild.conf(5) for more
information.
--dpkg-source-opt=options
Pass the specified option directly to dpkg-source in addition to the options
already passed by sbuild. This is only used when creating a source package from a
Debianized source directory. This option can be passed multiple times (once per
dpkg-source option) and can be freely mixed with the --dpkg-source-opts option.
Options will be passed to dpkg-source in the order that the --dpkg-source-opt and
--dpkg-source-opts options are given on the command line. This command line option
appends to the DPKG_SOURCE_OPTIONS configuration variable. See sbuild.conf(5) for
more information.
NOTE: The '-b', '--before-build' and '--after-build' options will always be passed
to dpkg-source, respectively.
--dpkg-source-opts=options
Pass the specified options directly to dpkg-source in addition to the options
already passed by sbuild. The argument will be split by whitespaces and the
resulting array passed to the dpkg-source invocation. This is only used when
creating a source package from a Debianized source directory. If any options
contain spaces, use --dpkg-source-opt for them. This option can be passed multiple
times and can be freely mixed with the --dpkg-source-opt option. Options will be
passed to dpkg-source in the order that the --dpkg-source-opt and
--dpkg-source-opts options are given on the command line. This command line option
appends to the DPKG_SOURCE_OPTIONS configuration variable. See sbuild.conf(5) for
more information.
NOTE: The '-b', '--before-build' and '--after-build' options will always be passed
to dpkg-source, respectively.
--dpkg-file-suffix=suffix
Add the suffix to the filename of the changes and buildinfo files generated by
dpkg.
NOTE: This option is ignored if dpkg-dev in the build environment is too old to
support it. At least dpkg-dev 1.18.11 is required.
--mail-log-to=email-address
Send the build log to the specified email address. This command line option sets
the MAILTO configuration variable. See sbuild.conf(5) for more information.
--mailfrom=email-address
Email address used as the sender address for build logs. This command line option
sets the MAILFROM configuration variable. See sbuild.conf(5) for more information.
-n, --nolog
Do not create a package log file in the $log_dir directory and no build log file,
but print everything to stdout. Also do not send any log mails. This command line
option sets the NOLOG configuration variable. See sbuild.conf(5) for more
information.
--profiles=profile[,...]"
Specify the profile(s) we build, as a comma-separated list. Defaults to the space
separated list of profiles in the DEB_BUILD_PROFILES environment variable when
building natively or the cross and nocheck profiles when cross-building. This
command line option sets the BUILD_PROFILES configuration variable. See
sbuild.conf(5) for more information.
-p, --purge=purge-mode
Convenience option to set purge-mode for build directory, build dependencies and
session. This command line option sets the PURGE_BUILD_DEPS, PURGE_BUILD_DIRECTORY
and PURGE_SESSION configuration variables. See sbuild.conf(5) for more information.
--purge-build=purge-mode
purge-mode determines if the build directory will be deleted after a build.
Possible values are always (default), never, and successful. This command line
option sets the PURGE_BUILD_DIRECTORY configuration variable. See sbuild.conf(5)
for more information.
--purge-deps=purge-mode
purge-mode determines if the build dependencies will be removed after a build.
Possible values are always (default), never, and successful. This command line
option sets the PURGE_BUILD_DEPS configuration variable. See sbuild.conf(5) for
more information.
--purge-session=purge-mode
Purge the schroot session following a build. This is useful in conjunction with
the --purge-build and --purge-deps options when using snapshot chroots, since by
default the snapshot will be deleted. Possible values are always (default), never,
and successful. This command line option sets the PURGE_SESSION configuration
variable. See sbuild.conf(5) for more information.
-s, --source
Build the source package in addition to the other requested build artifacts. By
default, the dsc will not be rewritten because the source package is the input to
sbuild, not its output. Even when running from an unpacked source tree sbuild will
first build the source package using dpkg-source and then pass that on to the
sbuild machinery. Use this option only when you know what you are doing. This will
rewrite the original dsc passed to sbuild. See the section BUILD ARTIFACTS for
more information. This command line option sets the BUILD_SOURCE configuration
variable. See sbuild.conf(5) for more information.
--no-source
Don't rebuild the source package. This is the default. It is the opposite of
--source. See the section BUILD ARTIFACTS for more information. This command line
option sets the BUILD_SOURCE configuration variable. See sbuild.conf(5) for more
information.
--force-orig-source
When used with in conjunction with -s, this option forces the inclusion of the
orig.tar.gz file in the generated .changes file, even in cases where it would not
normally be included, i.e. use dpkg-buildpackage -sa. This command line option
sets the FORCE_ORIG_SOURCE configuration variable. See sbuild.conf(5) for more
information.
--use-snapshot
Installs the latest snapshot gcc compiler from the gcc-snapshot package, and alters
the build environment to use the snapshot compiler for the build. Specifically,
this option appends /usr/lib/gcc-snapshot/lib to the value of the LD_LIBRARY_PATH
configuration variable and /usr/lib/gcc-snapshot/bin to the value of the PATH
configuration variable. It also sets the GCC_SNAPSHOT configuration variable. See
sbuild.conf(5) for more information.
-v, --verbose
Be verbose, i.e. all information goes to stdout as well as to the log files.
-q, --quiet
Be quiet. This is the opposite of --verbose.
--make-binNMU=changelog-entry
With this option, sbuild will create a new changelog entry in debian/changelog of
every package built. The version number will be in the format for binary-only NMUs
(see --binNMU); the maintainer is set to the maintainer name configured for sbuild.
changelog-entry will be used as the changelog entry following “Binary-only non-
maintainer upload for ARCH -- no source changes”. Please note that the versions in
the PACKAGE_VERSION[.dsc] arguments still have to be the unmodified (non-NMU ones)
so that the sources can be found. The version number in log files and mails will be
modified by sbuild automatically. The --append-to-version option has a similar
effect but allows one to specify an arbitrary version suffix instead of a custom
changelog entry. To have a custom version suffix and a custom changelog entry, use
--make-binNMU and --append-to-version at the same time with --binNMU=0. This
option is incompatible with --binNMU-changelog. This option implies --no-arch-all.
This command line option sets the BIN_NMU configuration variable and sets the
BIN_NMU_VERSION configuration variable to 1 if it was not set yet, for example by
the --binNMU option. See sbuild.conf(5) for more information.
--binNMU=NMU-version
The version number of the binary NMU. This option only has an effect if combined
with --make-binNMU and/or with --append-to-version. version is a single number for
the (+bn) format used for binary NMUs. If the argument is the empty string or
zero, then the +bn suffix will not be appended. The +bn suffix will be appended
after the string given via --append-to-version. This option is incompatible with
--binNMU-changelog. This command line option sets the BIN_NMU_VERSION
configuration variable. See sbuild.conf(5) for more information.
--append-to-version=string
This option is similar to --make-binNMU except that it allows the user to specify
an arbitrary string to be appended to the version number (immediately before the
'+' in the Debian revision if --make-binNMU is also provided). To pass an
arbitrary changelog text as well, combine this option with --make-binNMU but be
aware that this will also add the +bn suffix unless you also pass --binNMU=0 to
disable it. This option is incompatible with --binNMU-changelog. This option
implies --no-arch-all. This command line option sets the APPEND_TO_VERSION
configuration variable. See sbuild.conf(5) for more information.
--binNMU-timestamp=timestamp
Set the timestamp of the new binNMU changelog entry. By default, the time of the
build will be used to generate the binNMU changelog timestamp. This option allows
one to use a custom timestamp instead. The timestamp is either given as an integer
in Unix time or as a string in the format compatible with Debian changelog entries
(i.e. as it is generated by date -R). This option is incompatible with
--binNMU-changelog. This command line option sets the BIN_NMU_TIMESTAMP
configuration variable. See sbuild.conf(5) for more information.
--binNMU-changelog=changelog
Set the complete content of a binary-only changelog entry. This option allows full
customization of the new changelog entry. It is up to the user to make sure that
the changelog entry is well-formed. The argument has to include all necessary
newlines. Leading and trailing newlines will be stripped. Sbuild will not
interpret any backslash escapes. This option is incompatible with --make-binNMU,
--binNMU, --append-to-version and --binNMU-timestamp. This command line option
sets the BIN_NMU_CHANGELOG configuration variable. See sbuild.conf(5) for more
information.
--build-dir=directory
Set the output directory for the build artifacts created by dpkg-buildpackage and
the log file. By default, the current directory is used or, when sbuild is executed
from within an unpacked source directory, the parent directory. This command line
option sets the BUILD_DIR configuration variable. See sbuild.conf(5) for more
information.
--clean-source
When executing sbuild from within an unpacked source tree, execute the debian/rules
clean target. This is the default and might require some of the build dependencies
installed on the host. This command line option sets the CLEAN_SOURCE
configuration variable. See sbuild.conf(5) for more information.
--no-clean-source
When executing sbuild from within an unpacked source tree, do not run the
debian/rules clean target before building the source package. Only set this if you
start from a clean checkout and you know what you are doing. This command line
option sets the CLEAN_SOURCE configuration variable. See sbuild.conf(5) for more
information.
--run-lintian
Run lintian after a successful build. This command line option sets the
RUN_LINTIAN configuration variable. See sbuild.conf(5) for more information.
--no-run-lintian
Don't run lintian after a successful build. If sbuild is configured to run lintian
by default, this option will prevent lintian being run. This command line option
sets the RUN_LINTIAN configuration variable. See sbuild.conf(5) for more
information.
--lintian-opt=options
Pass the specified option directly to lintian in addition to the options already
passed by sbuild. This option can be passed multiple times (once per lintian
option) and can be freely mixed with the --lintian-opts option. Options will be
passed to lintian in the order that the --lintian-opt and --lintian-opts options
are given on the command line. This command line option appends to the
LINTIAN_OPTIONS configuration variable. See sbuild.conf(5) for more information.
--lintian-opts=options
Pass the specified options directly to lintian in addition to the options already
passed by sbuild. The argument will be split by whitespaces and the resulting array
passed to the lintian invocation. If any options contain spaces, use --lintian-opt
for them. This option can be passed multiple times and can be freely mixed with
the --lintian-opts option. Options will be passed to lintian in the order that the
--lintian-opt and --lintian-opts options are given on the command line. This
command line option appends to the LINTIAN_OPTIONS configuration variable. See
sbuild.conf(5) for more information.
--run-piuparts
Run piuparts after a successful build. This command line option sets the
RUN_PIUPARTS configuration variable. See sbuild.conf(5) for more information.
--no-run-piuparts
Don't run piuparts after a successful build. If sbuild is configured to run
piuparts by default, this option will prevent piuparts being run. This command
line option sets the RUN_PIUPARTS configuration variable. See sbuild.conf(5) for
more information.
--piuparts-opt=options
Pass the specified option directly to piuparts in addition to the options already
passed by sbuild. This option can be passed multiple times (once per piuparts
option) and can be freely mixed with the --piuparts-opts option. Options will be
passed to piuparts in the order that the --piuparts-opt and --piuparts-opts options
are given on the command line. Certain percent escapes are supported. To write a
literal percent sign, escape it with another percent sign. See the section OPTION
STRING PERCENT ESCAPES for more information. This command line option appends to
the PIUPARTS_OPTIONS configuration variable. See sbuild.conf(5) for more
information.
--piuparts-opts=options
Pass the specified options directly to piuparts in addition to the options already
passed by sbuild. The argument will be split by whitespaces and the resulting array
passed to the piuparts invocation. If any options contain spaces, use
--piuparts-opt for them. This option can be passed multiple times and can be
freely mixed with the --piuparts-opts option. Options will be passed to piuparts in
the order that the --piuparts-opt and --piuparts-opts options are given on the
command line. Certain percent escapes are supported. To write a literal percent
sign, escape it with another percent sign. See the section OPTION STRING PERCENT
ESCAPES for more information. This command line option appends to the
PIUPARTS_OPTIONS configuration variable. See sbuild.conf(5) for more information.
--piuparts-root-arg=options
Add an argument that is used to launch piuparts as root. Without this option, the
default is to use "sudo --" to launch piuparts. If an empty string is supplied,
then piuparts is launched without any prefixed command. This option can be
specified multiple times. This command line option appends to the
PIUPARTS_ROOT_ARGS configuration variable. See sbuild.conf(5) for more information.
--piuparts-root-args=options
Add arguments that are used to launch piuparts as root. Without this option, the
default is to use "sudo --" to launch piuparts. If an empty string is supplied,
then piuparts is launched without any prefixed command. The argument will be split
by whitespaces. To pass options containing whitespaces use the option
--piuparts-root-arg. This command line option appends to the PIUPARTS_ROOT_ARGS
configuration variable. See sbuild.conf(5) for more information.
--run-autopkgtest
Run autopkgtest after a successful build. This command line option sets the
RUN_AUTOPKGTEST configuration variable. See sbuild.conf(5) for more information.
--no-run-autopkgtest
Don't run autopkgtest after a successful build. If sbuild is configured to run
autopkgtest by default, this option will prevent autopkgtest being run. This
command line option sets the RUN_AUTOPKGTEST configuration variable. See
sbuild.conf(5) for more information.
--autopkgtest-opt=options
Pass the specified option directly to autopkgtest in addition to the options
already passed by sbuild. This option can be passed multiple times (once per
autopkgtest option) and can be freely mixed with the --autopkgtest-opts option.
Options will be passed to autopkgtest in the order that the --autopkgtest-opt and
--autopkgtest-opts options are given on the command line. Certain percent escapes
are supported. To write a literal percent sign, escape it with another percent
sign. See the section OPTION STRING PERCENT ESCAPES for more information. This
command line option appends to the AUTOPKGTEST_OPTIONS configuration variable. See
sbuild.conf(5) for more information.
--autopkgtest-opts=options
Pass the specified options directly to autopkgtest in addition to the options
already passed by sbuild. The argument will be split by whitespaces and the
resulting array passed to the autopkgtest invocation. If any options contain
spaces, use --autopkgtest-opt for them. This option can be passed multiple times
and can be freely mixed with the --autopkgtest-opts option. Options will be passed
to autopkgtest in the order that the --autopkgtest-opt and --autopkgtest-opts
options are given on the command line. Certain percent escapes are supported. To
write a literal percent sign, escape it with another percent sign. See the section
OPTION STRING PERCENT ESCAPES for more information. This command line option
appends to the AUTOPKGTEST_OPTIONS configuration variable. See sbuild.conf(5) for
more information.
--autopkgtest-root-arg=options
Add an argument that is used to launch autopkgtest as root. Without this option,
the default is to use "sudo --" to launch autopkgtest. If an empty string is
supplied, then autopkgtest is launched without any prefixed command. This option
can be specified multiple times. This command line option appends to the
AUTOPKGTEST_ROOT_ARGS configuration variable. See sbuild.conf(5) for more
information.
--autopkgtest-root-args=options
Add arguments that are used to launch autopkgtest as root. Without this option,
the default is to use "sudo --" to launch autopkgtest. If an empty string is
supplied, then autopkgtest is launched without any prefixed command. The argument
will be split by whitespaces. To pass options containing whitespaces use the option
--autopkgtest-root-arg. This command line option appends to the
AUTOPKGTEST_ROOT_ARGS configuration variable. See sbuild.conf(5) for more
information.
--pre-build-commands=string
This is the earliest external command which is run right after the chroot session
has been initialized and before anything else is done (like installing the build
dependencies). The command is run outside of the chroot. This option can be used
multiple times to add multiple commands. Certain percent escapes are supported. To
write a literal percent sign, escape it with another percent sign. See the section
EXTERNAL COMMANDS for more information. This command line option appends to the
EXTERNAL_COMMANDS configuration variable. See sbuild.conf(5) for more information.
--chroot-setup-commands=string
Run these commands after the chroot and variables have been setup but before
dependencies are installed. The command is run as root inside of the chroot. This
option can be used multiple times to add multiple commands. Certain percent escapes
are supported. To write a literal percent sign, escape it with another percent
sign. See the section EXTERNAL COMMANDS for more information. This command line
option appends to the EXTERNAL_COMMANDS configuration variable. See sbuild.conf(5)
for more information.
--chroot-update-failed-commands=string
Run these commands after any of 'apt-get update', 'apt-get upgrade' or 'apt-get
dist-upgrade' failed. This hook is not run for updates of the internal sbuild apt
repository, the repository for extra packages (see --extra-package) and the
repositories given via --extra-repository. The environment is intact, and the
failure can be investigated. Especially %SBUILD_SHELL is useful here. This option
can be used multiple times to add multiple commands. Certain percent escapes are
supported. To write a literal percent sign, escape it with another percent
sign.See the section EXTERNAL COMMANDS for more information. This command line
option appends to the EXTERNAL_COMMANDS configuration variable. See sbuild.conf(5)
for more information.
--build-deps-failed-commands=string
These commands are run if installing the build dependencies has failed directly
after the failed attempt. The environment is intact, and the failure can be
investigated. Especially %SBUILD_SHELL is useful here. The command is run as root
inside the chroot. This option can be used multiple times to add multiple commands.
Certain percent escapes are supported. To write a literal percent sign, escape it
with another percent sign. See the section EXTERNAL COMMANDS for more information.
This command line option appends to the EXTERNAL_COMMANDS configuration variable.
See sbuild.conf(5) for more information.
--starting-build-commands=string
Run these commands after dependencies are installed, just before the package build
with dpkg-buildpackage starts. The command is run as the root user inside the
chroot. This option can be used multiple times to add multiple commands. Certain
percent escapes are supported. To write a literal percent sign, escape it with
another percent sign. See the section EXTERNAL COMMANDS for more information. This
command line option appends to the EXTERNAL_COMMANDS configuration variable. See
sbuild.conf(5) for more information.
--finished-build-commands=string
Run these commands immediately after the timed package build finishes. The command
is run as the root user inside the chroot. This option can be used multiple times
to add multiple commands. Certain percent escapes are supported. To write a literal
percent sign, escape it with another percent sign. See the section EXTERNAL
COMMANDS for more information. This command line option appends to the
EXTERNAL_COMMANDS configuration variable. See sbuild.conf(5) for more information.
--build-failed-commands=string
These commands are run if dpkg-buildpackage has failed directly after the failed
attempt. The environment is intact, and the failure can be investigated.
Especially %SBUILD_SHELL is useful here. The command is run as the root user inside
the chroot. This option can be used multiple times to add multiple commands.
Certain percent escapes are supported. To write a literal percent sign, escape it
with another percent sign. See the section EXTERNAL COMMANDS for more information.
This command line option appends to the EXTERNAL_COMMANDS configuration variable.
See sbuild.conf(5) for more information.
--chroot-cleanup-commands=string
Run these commands when a chroot is cleaned up, before build directory is purged.
The command is run as root inside the chroot. This option can be used multiple
times to add multiple commands. Certain percent escapes are supported. To write a
literal percent sign, escape it with another percent sign. See the section EXTERNAL
COMMANDS for more information. This command line option appends to the
EXTERNAL_COMMANDS configuration variable. See sbuild.conf(5) for more information.
--post-build-commands=string
Run this command after a successful build. The command is run outside of the
chroot. This option can be used multiple times to add multiple commands. Certain
percent escapes are supported. To write a literal percent sign, escape it with
another percent sign. See the section
--post-build-failed-commands=string
Exactly like the above, but when a build fails. EXTERNAL COMMANDS for more
information. This command line option appends to the EXTERNAL_COMMANDS
configuration variable. See sbuild.conf(5) for more information.
--anything-failed-commands=string
Run these commands for all the --xxx-failed-commands options. Especially
%SBUILD_SHELL is useful here. This option can be used multiple times to add
multiple commands. Certain percent escapes are supported. To write a literal
percent sign, escape it with another percent sign. See the section EXTERNAL
COMMANDS for more information. This command line option appends to the
EXTERNAL_COMMANDS configuration variable. See sbuild.conf(5) for more information.
--log-external-command-output
Write output from external commands to the build log. This command line option
sets the LOG_EXTERNAL_COMMAND_OUTPUT configuration variable. See sbuild.conf(5) for
more information.
--log-external-command-error
Write error output from external commands to the build log. This command line
option sets the LOG_EXTERNAL_COMMAND_ERROR configuration variable. See
sbuild.conf(5) for more information.
--setup-hook=hook-script DEPRECATED
This option is deprecated. Use of this option will add hook-script to the external
commands to run via chroot-setup-commands. This command line option sets the
CHROOT_SETUP_SCRIPT configuration variable and appends to the EXTERNAL_COMMANDS
configuration variable. See sbuild.conf(5) for more information.
--build-dep-resolver=resolver
Use the specified resolver to handle selecting the build dependencies. Supported
resolvers are apt (the default), aptitude, aspcud, xapt, and null. The apt
resolver is the most appropriate resolver for most users, for building for
unstable, stable and other distributions. If alternative build dependencies are
used (excluding architecture restrictions), only the first alternative will be
used; the others will be ignored. The aptitude resolver is very similar, but
smarter and slower, and it will consider all alternatives by default; it is suited
to more complex situations, such as building packages for the experimental
distribution, where packages need installing from multiple suites (unstable and
experimental). Due to performance and other issues (bug #139615), aptitude is not
recommended for use by default. If the dependency situation is so complex that
neither apt nor aptitude are able to find a solution, then you can use the aspcud
resolver. This resolver uses apt-cudf to ask aspcud, a real solver (in the math
sense), to find a solution to the installation problem. Since aspcud uses a real
solver (an ASP solver) it will always find a solution if one exists. The solution
found by the aspcud resolver can be refined by changing the default optimization
criteria through the --aspcud-criteria option. The xapt resolver is intended only
for cross-building, and is a temporary transitional feature which will be removed
following the complete introduction of multi-arch support. Finally, the null
resolver is a dummy solver which does not install, upgrade or remove any packages.
This allows one to completely control package installation via hooks. This command
line option sets the BUILD_DEP_RESOLVER configuration variable. See sbuild.conf(5)
for more information.
--aspcud-criteria=criteria
Optimization criteria in extended MISC 2012 syntax passed to aspcud through apt-
cudf. Optimization criteria are separated by commas, sorted by decreasing order of
priority and are prefixed with a polarity (+ to maximize and - to minimize). The
default criteria is -removed,-changed,-new which first minimizes the number of
removed packages, then the number of changed packages (up or downgrades) and then
the number of new packages. A common task is to minimize the number of packages
from experimental. To do this you can add a criteria like -count(solution,APT-
Release:=/a=experimental/) to the default criteria. This will then minimize the
number of packages in the solution which contain the string a=experimental in the
APT-Release field of the EDSP output created by apt. For more help on how to write
optimization criteria, see the apt-cudf(1) man page. Specifically the help on the
--criteria option. This command line option sets the ASPCUD_CRITERIA configuration
variable. See sbuild.conf(5) for more information.
--resolve-alternatives
Allow the use of alternatives in Build-Depends, Build-Depends-Arch and Build-
Depends-Indep. This is the default for the aptitude dependency resolver. This
command line option sets the RESOLVE_ALTERNATIVES configuration variable. See
sbuild.conf(5) for more information.
--no-resolve-alternatives
Do not allow the use of alternatives in Build-Depends, Build-Depends-Arch and
Build-Depends-Indep. Note that alternatives for the same package (e.g. different
versions) are still allowed. This is the default for the apt and xapt dependency
resolvers. This command line option sets the RESOLVE_ALTERNATIVES configuration
variable. See sbuild.conf(5) for more information.
--extra-package=package.deb|directory
Make package.deb available for build-dependency resolution, by adding it to a
temporary archive created by sbuild. This makes it easier to build packages
against locally-built build dependencies, without waiting for those packages to
enter the main archive, or going through the hassle of maintaining a local archive
and making it accessible inside the chroot. package.deb is copied into the chroot,
so it can refer to any path on the host system. If a directory is passed instead
of a regular file, then all regular files inside that directory with a filename
that ends in .deb will be added in the same fashion as it is done for individual
packages. This option can be specified multiple times. This command line option
appends to the EXTRA_PACKAGES configuration variable. See sbuild.conf(5) for more
information.
--extra-repository=spec
Add a repository to the list of apt sources during the package build. The
repository specification is a line suitable for an apt sources.list(5) file. For
instance, you might use --extra-repository="deb http://deb.debian.org/debian
experimental main" to allow packages in the experimental distribution to fulfill
build-dependencies. Note that the build chroot must already trust the key of this
repository or a key must be given with the --extra-repository-key flag (see apt-
secure(8)). This command line option appends to the EXTRA_REPOSITORIES
configuration variable. See sbuild.conf(5) for more information.
--extra-repository-key=file.asc
Add file.asc to the list of trusted keys inside the chroot. The key is read from
the filename given, and added to the trusted keys. For more information, see apt-
secure(8). This flag is particularly useful if the target in --extra-repository is
not signed with a key that's trusted by the base chroot. This command line option
appends to the EXTRA_REPOSITORY_KEYS configuration variable. See sbuild.conf(5) for
more information.
--build-path=string
By default the package is built in a path of the following format
/build/packagename-XXXXXX/packagename-version/ where XXXXXX is a random ascii
string. This option allows one to specify a custom path where the package is built
inside the chroot. The sbuild user in the chroot must have permissions to create
the path. Common writable locations are subdirectories of /tmp or /build. Using
/tmp might be dangerous, because (depending on the chroot mode) the /tmp inside the
chroot might be a world writable location that can be accessed by processes outside
the chroot. The directory /build can only be accessed by the sbuild user and group
and should be a safe location. The buildpath must be an empty directory because
the last component of the path will be removed after the build is finished. Notice
that depending on the chroot mode (see --chroot-mode), some locations inside the
chroot might be bind mounts that are shared with other sbuild instances. You must
avoid using these shared locations as the build path or otherwise concurrent runs
of sbuild will likely fail. With the default schroot chroot mode, the directory
/build is shared between multiple schroot sessions. You can change this behaviour
in /etc/schroot/sbuild/fstab. The behaviour of other chroot modes will vary. This
command line option sets the BUILD_PATH configuration variable. See sbuild.conf(5)
for more information.
--autopkgtest-virt-server=schroot|lxc|chroot|qemu|ssh
The autopkgtest virtualization server. Can be specified with or without the
autopkgtest-virt- prefix. For instance, the following set of command line options
will use the autopkgtest-virt-schroot chroot mode for a package build: --chroot-
mode=autopkgtest --autopkgtest-virt-server=schroot --autopkgtest-virt-server-
opt=unstable-amd64-sbuild This command line option sets the AUTOPKGTEST_VIRT_SERVER
configuration variable. See sbuild.conf(5) for more information.
--autopkgtest-virt-server-opt=string
Pass the specified option directly to the respective autopkgtest-virt-*
virtualization server in addition to the options already passed by sbuild. This
option can be passed multiple times (once per autopkgtest-virt-* option) and can be
freely mixed with the --autopkgtest-virt-server-opts option. Options will be
passed to the respective autopkgtest-virt-* virtualization server in the order that
the --autopkgtest-virt-server-opt and --autopkgtest-virt-server-opts options are
given on the command line. See the manual pages of the respective autopkgtest-
virt-* commands for more information. Certain percent escapes are supported. To
write a literal percent sign, escape it with another percent sign. See the section
OPTION STRING PERCENT ESCAPES for more information. This command line option
appends to the AUTOPKGTEST_VIRT_SERVER_OPTIONS configuration variable. See
sbuild.conf(5) for more information.
--autopkgtest-virt-server-opts=options
Pass the specified options directly to the respective autopkgtest-virt-*
virtualization server in addition to the options already passed by sbuild. The
argument will be split by whitespaces and the resulting array passed to the
autopkgtest-virt-* invocation. If any options contain spaces, use
--autopkgtest-virt-server-opt for them. This option can be passed multiple times
and can be freely mixed with the --autopkgtest-virt-server-opts option. Options
will be passed to the respective autopkgtest-virt-* virtualization server in the
order that the --autopkgtest-virt-server-opt and --autopkgtest-virt-server-opts
options are given on the command line. See the manual pages of the respective
autopkgtest-virt-* commands for more information. Certain percent escapes are
supported. To write a literal percent sign, escape it with another percent sign.
See the section OPTION STRING PERCENT ESCAPES for more information. This command
line option appends to the AUTOPKGTEST_VIRT_SERVER_OPTIONS configuration variable.
See sbuild.conf(5) for more information.
--sbuild-mode=mode
Behaviour changes for use in a buildd environment. This command line option sets
the SBUILD_MODE configuration variable. See sbuild.conf(5) for more information.
--stats-dir=directory
Directory for writing build statistics to. This command line option sets the
STATS_DIR configuration variable. See sbuild.conf(5) for more information.
--purge-extra-packages
This is an experimental option. Only use when you know what you are doing. Source
packages must be buildable with only their build dependencies, all packages marked
as Essential:yes, the build-essential package and their transitive dependencies
installed. But by default, most chroots will also include Priority:required
packages and apt as well as their transitive dependencies. This option will try to
remove all additional packages that are not strictly required for the build right
after build dependencies were installed. This currently works best with the aspcud
resolver. The apt resolver will not make as much effort to remove all unneeded
packages and will keep all providers of a virtual package and all packages from any
dependency alternative that happen to be installed. The aptitude and xapt resolver
do not implement this feature yet. The removed packages are not (yet) added again
after the build finished. This can have undesirable side effects like lintian not
working (because there is no apt to install its dependencies) or bare chroots
becoming totally unusable after apt was removed from them. Thus, this option should
only be used with throw-away chroots like schroot provides them where the original
state is automatically restored after each build. This command line option sets the
PURGE_EXTRA_PACKAGES configuration variable. See sbuild.conf(5) for more
information.
--bd-uninstallable-explainer=dose3|apt|none
If the build dependencies cannot be satisfied by the chosen resolver, sbuild will
run the selected method to give a better explanation why the build dependencies
cannot be installed. Possible arguments for this option are dose3 (the default),
apt and none. To disable this feature, pass none or the empty string. Depending on
the resolver, the dose3 explainer might report a dependency situation as
satisfiable even if the chosen resolver found it to be unsatisfiable. This is
especially likely to happen if the apt resolver (the default) is used. Such
disparities can have two reasons: either the understanding of the involved
dependency situation of the apt and dose3 solver differs (this is a bug) or the apt
solver was unable to find a solution if the dependency situation is not trivial
(for example if it involves packages from multiple repositories). In the former
case, please report the disparity as a bug against the resolvers. In the latter
case, use a resolver that is more likely to find a solution like the aptitude or
aspcud resolvers. Especially the aspcud resolver should find a solution if and only
if the dose3 solver also finds one. This command line option sets the
BD_UNINSTALLABLE_EXPLAINER configuration variable. See sbuild.conf(5) for more
information.
CHROOT MODES
The main purpose of sbuild is to build Debian packages in a clean chroot environment.
Provisioning and managing these chroot environments is not done by sbuild itself but by
multiple backends. The default backend (or chroot mode) is schroot which is an suid binary
that allows regular users to enter a chroot environment. But sbuild also allows one to
build packages in a qemu virtual machine, lxc, lxd or on a remote host reached by ssh
using the autopkgtest backend. The backend can be chosen using the --chroot-mode command
line argument or the $chroot_mode configuration parameter.
schroot
The default and recommended chroot mode. It is also used on Debian buildd machines.
The easiest way to set up sbuild for use with the schroot backend is by using
sbuild-createchroot which will also write out the necessary schroot configuration
files in /etc. To use the chroots, the current user has to be added to the sbuild
group, for example by running sbuild-adduser. Updating these schroot backends can
be done using sbuild-update. See the respective man pages for more information
about how to use these programs. Schroot supports chroots from directories,
tarballs, filesystem images and block devices. Schroot provides ephemeral chroots
either by unpacking a tarball into a temporary directory, by using an overlay
filesystem for directory chroots or by using btrfs or lvm snapshots. Chroots usable
by schroot are defined by configuration files in /etc/schroot/chroot.d/. When
building for a specific distribution and architecture, sbuild will choose the
chroot that is named (or has the alias) $distribution-$arch-sbuild,
$distribution-sbuild, $distribution-$arch or $distribution, in that order of
preference. The used chroot name can be overridden using the -c or --chroot
options.
sudo This chroot mode is deprecated and only provided for backwards compatibility and
testing purposes. It operates by plainly entering the chosen chroot directory using
"sudo chroot". Thus, this backend also does not provide ephemeral chroots. The sudo
chroot mode searches for a symlink or directory located at /etc/sbuild/chroot/ or
in the current directory, prefixed with chroot-. The expected names are resolved in
the same order as for the schroot chroot mode and can be overridden using the -c or
--chroot options.
autopkgtest
This is an experimental chroot mode that allows one to build packages in any chroot
supported by autopkgtest. This allows one to build packages in lxc or lxd
containers, a qemu virtual machine or on a remote host via ssh. Which autopkgtest
server to use is determined via the --autopkgtest-virt-server option. Since
autopkgtest (in contrast to schroot) does not maintain a registry of available
containers or (virtual) machines, it is necessary to manually specify them using
the --autopkgtest-virt-server-opts= command line argument. To avoid having to
manually type the right container or machine name every time when sbuild is
executed, percent escapes are permitted.
unshare
This is an experimental backend that allows one to build packages inside chroots
provided by arbitrary tarballs. This allows one to set up an arbitrary build
environment without having to become root. Building packages with schroot also
doesn't require sudo (schroot is suid root) but setting up and updating chroots
requires superuser permissions. The unshare backend only makes use of two small
suid binaries (newuidmap and newgidmap). This backend allows arbitrary tarballs
containing chroot environments to be used for package building. The default tarball
location is in ~/.cache/sbuild/. The expected names are resolved in the same order
as for the schroot chroot mode and can be overridden using the -c or --chroot
options.
On buster and earlier Debian releases, unprivileged userns clones
(/proc/sys/kernel/unprivileged_userns_clone) were disabled by default by means of a
Debian-specific kernel patch. On these systems, root is required for enabling them.
This can also done permanently by setting kernel.unprivileged_userns_clone=1 in
/etc/sysctl.d/.
BUILD ARTIFACTS
Sbuild is meant to be used to build architecture specific binary packages from a given
source package. In addition, sbuild is also able to generate architecture independent
binary packages as well as to rebuild the original source package that was used as input.
In summary, sbuild is able to build architecture specific binary packages, architecture
independent binary packages and source packages. What ends up being built is determined by
the configuration variables BUILD_ARCH_ANY, BUILD_ARCH_ALL and BUILD_SOURCE, respectively.
See sbuild.conf(5) for a detailed explanation of these configuration variables.
By default, during native compilation, BUILD_ARCH_ANY and BUILD_ARCH_ALL are set to true
while BUILD_SOURCE is set to false. During cross-compilation, BUILD_ARCH_ALL defaults to
false. This behaviour can be changed either by using command line options or by modifying
the configuration variables in your ~/.sbuildrc. The relevant command line options to
change the values of BUILD_ARCH_ANY, BUILD_ARCH_ALL and BUILD_SOURCE are --arch-any/--no-
arch-any, --arch-all/--no-arch-all and --source/--no-source, respectively.
The values of BUILD_ARCH_ANY, BUILD_ARCH_ALL and BUILD_SOURCE change the parameter that
dpkg-buildpackage is called with. The following table displays the argument passed to
dpkg-buildpackage in the last column depending on the configuration options in the first
three columns.
BUILD_ARCH_ANY BUILD_ARCH_ALL BUILD_SOURCE dpkg-buildpackage flag
────────────────────────────────────────────────────────────────────────
false false false invalid
false false true -S
false true false -A
false true true -g
true false false -B
true false true -G
true true false -b
true true true no option
EXTERNAL COMMANDS
Support to run external commands during an sbuild run is provided. A set of external
commands can be run at various stages of a build. Providing commands to run is done
through the appropriate options given on the command line and through the use of the
configuration files. In the configuration file, the list of commands to run are placed in
a hash of arrays of arrays of strings corresponding to the commands to run.
There are several sets of commands. All command are run inside the chroot as root except
for the pre/post-build- commands which are run as the user running sbuild outside of the
chroot. To run an external command as another user than the root user, prefix your command
with runuser -u sbuild --.
Here is a summary of the ordering, user, internal/external to chroot for each command hook
The following table shows each command hook in the context of the tasks sbuild performs.
The column root shows whether the command is run as root (yes) or not (no). The column
chroot shows whether the command is run inside our outside the chroot. The working
directory inside the chroot is the one marked with <<BUILDDIR>> inside the log. By
default, this is a directory of the format /build/packagename-XXXXXX/ where XXXXXX is a
random ascii string. Otherwise, it is the directory set by --build-path or by the
BUILD_PATH configuration option. The working directory outside of the chroot is $HOME.
The remaining columns show the percent escapes that are defined in each command. Percent
escapes that are available in all commands (%%, %a, %b, %s) are omitted. The value maybe
in the column for the %d and %p escapes means that the value can not relied upon to be
defined in these stages. More specifically, these escapes will not be defined at these
points if the user specified a source package name without a version on the command line.
In that case, the version will only become known after the source package has been
retrieved in the "Fetch and unpack source package" stage.
command/action root chroot %c %e %d,%p
──────────────────────────────────────────────────────────────────────────
Initialise chroot session
--pre-build-commands no outside no yes maybe
Setup the chroot and variables
--chroot-setup-commands yes inside no no maybe
Update and upgrade packages
--chroot-update-failed-commands yes inside no no maybe
Fetch and unpack source package
Install Dependencies
--build-deps-failed-commands yes inside no no yes
--starting-build-commands yes inside no no yes
Run dpkg-buildpackage
--build-failed-commands yes inside no no yes
--finished-build-commands yes inside no no yes
Run lintian (if configured)
--chroot-cleanup-commands yes inside yes no yes
Cleanup build files and dependencies
Run piuparts (if configured)
Run autopkgtest (if configured)
Close schroot session
--post-build-commands no outside yes yes yes
--post-build-failed-commands no outside yes yes yes
The commands can be given in the configuration files. They can be given as strings or as a
list of arguments. For example, to run "foo" and "bar" with arguments before a build
starts, specifying the "foo" command as a list and "bar" as a string, one could do this:
$external_commands = {
"pre-build-commands" => [
['foo', 'arg1', 'arg2'],
'bar arg1 arg2 arg3',
],
};
Hash keys for commands to run at other stages have the same name as their corresponding
command-line option name without the preceding '--'.
Here's an example of how to do the same with the previous example, except using the
--pre-build-commands option.
$ sbuild \
--pre-build-commands='foo arg1 arg2' \
--pre-build-commands='bar arg1 arg2 arg3'
Note that all these commands are executed through the shell in "/bin/sh". If specifying
the command as a list in the config file, very few shell facilities are supported: no
redirection, no command concatenation with ; and so on. When passing a string (in the
config file or on the commandline), the string is passed as-is to the shell. So all shell
facilities are available, given that you escape everything properly, as you would in an
interactive shell.
Besides running external commands, sbuild can also detect the use of certain percent
escapes given as arguments. These are used to allow for a command to be supplied with a
certain argument depending on the escape given. For example, it could be possible to have
an external command be given the path to a .changes file.
Here is a listing of keywords and a description of what it's converted to.
%% Used to escape a '%'.
%d, %SBUILD_DSC
These escapes are converted to the absolute path to a package's .dsc file.
%c, %SBUILD_CHANGES
These escapes are converted to the absolute path to a package's source .changes
file. This is the .changes file generated by the dpkg-buildpackage invocation and
not the source-only .changes file that might've been produced additionally via
--source-only-changes. This variable is only set after the build is finished, i.e
in --chroot-cleanup-commands, --post-build-commands, and
--post-build-failed-commands.
%a, %SBUILD_HOST_ARCH
These escapes are converted to the debian name of the architecture the build is
being built for (e.g amd64, armhf).
%e, %SBUILD_CHROOT_EXEC
These escapes are converted to a command which can be executed on a host and can be
given arguments which will then be executed inside the chroot. Standard input and
output of the process started inside the chroot are connected to the program
executed on the host. Thus, this command can also be used to copy data into the
chroot and out of the chroot. The working directory of the process started inside
the chroot is the root directory of the chroot. The process is started as the root
user. This variable is not set if the external command is run inside the chroot.
Thus this escape is only available for --pre-build-commands, --post-build-commands,
and --post-build-failed-commands.
%b, %SBUILD_BUILD_DIR
These escapes are converted to the absolute path to the build directory inside the
chroot.
%p, %SBUILD_PKGBUILD_DIR
These escapes are converted to the absolute path to the package build directory
inside the chroot.
%s, %SBUILD_SHELL
This is converted to a command to spawn an interactive "bash" shell
%SBUILD_BUILD_ARCH
This escape is converted to the Debian name of the architecture that the build is
being run on (e.g amd64, armhf).
Percent escapes are only substituted when an appropriate value is defined for them. At
other times, it is left unchanged. In practice this means that there are only two escapes
that are not available in all external commands: %c and %e. For example, a .changes file
is only defined at the end of a build, so using %c will only be substituted for post-
build-commands and post-build-failed-commands.
Here's an example of using an escape to run a program foo on a .changes file after a build
is done.
$ sbuild --post-build-commands \
'foo %SBUILD_CHANGES'
And here's an example that will spawn an interactive shell to investigate the problem
whenever the build failed:
$ sbuild --build-failed-commands '%SBUILD_SHELL'
The following example would copy a file from the host into the chroot:
$ sbuild --pre-build-commands \
'cat blub.txt | %SBUILD_CHROOT_EXEC sh -c "cat > blub.txt"'
One final note, external commands are processed in the order they are given. Also, the
commands given in a configuration file are processed first, then the commands given
through the command line options.
OPTION STRING PERCENT ESCAPES
Besides for external command strings, percent escapes can also be used in custom options
passed to piuparts, autopkgtest and the chosen autopkgtest-virt server. This is for
example useful for communicating the right chroot backend to piuparts or autopkgtest
depending on the distribution or architecture the source package was built for.
Here is a listing of keywords and a description of what it's converted to.
%% Used to escape a '%'.
%a, %SBUILD_HOST_ARCH
These escapes are converted to the debian name of the architecture the build is
being built for (e.g amd64, armhf).
%r, %SBUILD_DISTRIBUTION
The distribution that the source package was built for. This is the value recorded
in debian/changelog or the value passed via the --dist option. Mnemonic: the r is
the first letter in "release".
Here is an example that will run piuparts with the right schroot chroot:
$ sbuild --run-piuparts \
--piuparts-opts="--schroot=%r-%a-sbuild"
Or an example of running autopkgtest with the right schroot chroot:
$ sbuild --run-autopkgtest --autopkgtest-root-args= \
--autopkgtest-opts="-- schroot %r-%a-sbuild"
To achieve the same effect via the configuration file, add the following:
$autopkgtest_root_args = '';
$piuparts_opts = [ '--schroot=%r-%a-sbuild' ];
$autopkgtest_opts = [ '--', 'schroot', '%r-%a-sbuild' ];
The --autopkgtest-root-args option and the $autopkgtest_root_args configuration variable
are set to the empty string because the default is to run autopkgtest with "sudo --" in
front of it which is not needed with the schroot autopkgtest backend.
LOCAL ARCHIVE
The apt and aptitude resolvers create a local archive for installing build dependencies.
This is an internal implementation detail of the build dependency resolver, which is not
user configurable, and is intended to be entirely transparent to the user. The local
archive exists only transiently during the package build. It does not persist across
builds, and it is only used to store the dummy dependency packages created for a single
build.
The dependency resolvers do the following:
• Create a dummy dependency package. This contains the Build-Depends (and optionally
Build-Depends-Arch and Build-Depends-Indep) as Depends, and Build-Conflicts (and
optionally Build-Conflicts-Arch and Build-Conflicts-Indep) as Conflicts.
• Install the dummy dependency package into the local archive,
• Generate the Packages, Sources and Release files.
• Write a sources.list file for the local archive into /etc/apt/sources.list.d.
• Inject the lists directly into /var/lib/apt/lists. This step is to save running
updating all apt sources which is undesirable during a build; apt and aptitude do
not support updating a single source at present.
• Regenerate the apt caches to ensure everything is in sync.
• Install the dummy dependency package with apt or aptitude; the dummy package is
pulled from the local apt archive, while all its dependencies are pulled from the
regular configured apt sources.
At the end of the build, the local archive is removed, along with the rest of the build
tree.
EXAMPLES
Before you use sbuild for the first time, you have to do some setup depending on the
chroot mode you are using. The default chroot mode is schroot. To use sbuild with the
schroot backend, you need to add your user to the sbuild group and create a schroot
chroot. The latter can be accomplished by using sbuild-createchroot(8). After this one
time setup, you can now use sbuild to build packages like this:
% sbuild -d unstable bash
Or on a .dsc:
% sbuild -d unstable bash.dsc
Or from within an unpacked source package (the -d parameter is not necessary here because
the distribution is inferred from debian/changelog):
% sbuild
ENVIRONMENT VARIABLES
The following environment variables are used by sbuild:
HOME The home directory of the user.
LOGNAME
Used in lockfiles.
SBUILD_CONFIG
Path to an additional configuration file on top of the system wide and user
specific ones.
FILES
/etc/sbuild/sbuild.conf
Configuration, maintained by the system administrator. This may be used to
override the defaults.
/etc/sbuild/chroot
Directory containing symbolic links to chroots. This is only used for sudo chroot
access; schroot access uses the schroot chroot configuration.
~/.sbuildrc
User-specific configuration. A custom path to a configuration file can also be
specified through setting the SBUILD_CONFIG environment variable to the path of an
additional configuration file.
/var/lib/sbuild
Build trees, archive signing keys, build statistics and lock files.
AUTHORS
Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>.
sbuild is based on debbuild, written by James Troup <james@nocrew.org> and has been
modified by
Ben Collins <bcollins@debian.org>,
Ryan Murray <rmurray@debian.org>,
Francesco Paolo Lovergine <frankie@debian.org>,
Michael Banck <mbanck@debian.org>, and
Roger Leigh <rleigh@debian.org>
COPYRIGHT
Copyright © 1998-2000 Roman Hodek <roman@hodek.net>
Copyright © 1998-1999 James Troup <troup@debian.org>
Copyright © 2003-2006 Ryan Murray <rmurray@debian.org>
Copyright © 2001-2003 Rick Younie <younie@debian.org>
Copyright © 2003-2004 Francesco Paolo Lovergine <frankie@debian.org>
Copyright © 2005 Michael Banck <mbanck@debian.org>
Copyright © 2005-2009 Roger Leigh <rleigh@debian.org>
SEE ALSO
sbuild.conf(5), sbuild-abort(1), sbuild-adduser(8), sbuild-apt(1),
sbuild-checkpackages(1), sbuild-createchroot(8), sbuild-distupgrade(1), sbuild-hold(1),
sbuild-setup(7). sbuild-shell(1), sbuild-unhold(1), sbuild-update(1), sbuild-upgrade(1),
schroot(1),