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xbps-src ignores unversioned shlibs currently. |
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common | ||
etc | ||
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.travis.yml | ||
CONTRIBUTING.md | ||
COPYING | ||
Manual.md | ||
README.md | ||
xbps-src |
The XBPS source packages collection
This repository contains the XBPS source packages collection to build binary packages for the Void Linux distribution.
The included xbps-src
script will fetch and compile the sources, and install its
files into a fake destdir
to generate XBPS binary packages that can be installed
or queried through the xbps-install(8)
and xbps-query(8)
utilities, respectively.
The xbps-src
utility uses xbps-uchroot(8)
to build packages in lightweight linux
containers
through the use of namespaces
, that means that processes and bind mounts
are isolated (among others).
Requirements
- GNU bash
- xbps >= 0.43.1
A privileged group is required to be able to execute xbps-uchroot(8)
, by default in void
it's the xbuilder
group.
Quick setup in Void
Add your user to the xbuilder
group:
# usermod -a -G xbuilder <user>
Clone the void-packages
git repository, install the bootstrap packages:
$ git clone git://github.com/voidlinux/void-packages.git
$ cd void-packages
$ ./xbps-src binary-bootstrap
Type:
$ ./xbps-src -h
to see all available targets/options and start building any available package
in the srcpkgs
directory.
Install the bootstrap packages
The bootstrap
packages are a set of packages required to build any available source package in a container. There are two methods to install the bootstrap
:
bootstrap
: all bootstrap packages will be built from scratch.binary-bootstrap
: the bootstrap binary packages are downloaded via XBPS repositories.
If you don't want to waste your time building everything from scratch probably it's better to use binary-bootstrap
.
Configuration
The etc/defaults.conf
file contains the possible settings that can be overrided
through the etc/conf
configuration file for the xbps-src
utility; if that file
does not exist, will try to read configuration settings from ~/.xbps-src.conf
.
If you want to customize default CFLAGS
, CXXFLAGS
and LDFLAGS
, don't override
those defined in etc/defaults.conf
, append to them instead via etc/conf
i.e:
$ echo 'XBPS_CFLAGS+=" your flags here "' >> etc/conf
$ echo 'XBPS_LDFLAGS+=" your flags here "' >> etc/conf
Virtual packages
The etc/defaults.virtual
file contains the default replacements for virtual packages,
used as dependencies in the source packages tree.
If you want to customize those replacements, copy etc/defaults.virtual
to etc/virtual
and edit it accordingly to your needs.
Directory tree
The following directory tree is used with a default configuration file:
/void-packages
|- common
|- etc
|- srcpkgs
| |- xbps
| |- template
|
|- hostdir
| |- binpkgs ...
| |- ccache-<arch> ...
| |- distcc-<arch> ...
| |- repocache ...
| |- sources ...
|
|- masterdir
| |- builddir -> ...
| |- destdir -> ...
| |- host -> bind mounted from <hostdir>
| |- void-packages -> bind mounted from <void-packages>
The description of these directories is as follows:
masterdir
: master directory to be used as rootfs to build/install packages.builddir
: to unpack package source tarballs and where packages are built.destdir
: to install packages, aka fake destdir.hostdir/ccache-<arch>
: to store ccache data if theXBPS_CCACHE
option is enabled.hostdir/distcc-<arch>
: to store distcc data if theXBPS_DISTCC
option is enabled.hostdir/repocache
: to store binary packages from remote repositories.hostdir/sources
: to store package sources.hostdir/binpkgs
: local repository to store generated binary packages.
Building packages
The simplest form of building package is accomplished by running the pkg
target in xbps-src
:
$ cd void-packages
$ ./xbps-src pkg <pkgname>
When the package and its required dependencies are built, the binary packages will be created
and registered in the default local repository at hostdir/binpkgs
; the path to this local repository can be added to
any xbps configuration file (see xbps.d(5)) or by explicitly appending them via cmdline, i.e:
$ xbps-install --repository=/path/to/hostdir/binpkgs ...
$ xbps-query --repository=/path/to/hostdir/binpkgs ...
Currently xbps expects absolute path when using the
--repository
option. This has been corrected in the 0.44 version.
By default xbps-src will try to resolve package dependencies in this order:
- If dependency exists in the local repository, use it (
hostdir/binpkgs
). - If dependency exists in a remote repository, use it.
- If dependency exists in a source package, use it.
It is possible to avoid using remote repositories completely by using the -N
flag.
The default local repository may contain multiple sub-repositories:
debug
,multilib
, etc.
Sharing and signing your local repositories
To share a local repository remotely it's mandatory to sign it and the binary packages
stored on it. This is accomplished with the xbps-rindex(8)
utility.
First a RSA key must be created with openssl(1)
or ssh-keygen(8)
:
$ openssl genrsa -des3 -out privkey.pem 4096
or
$ ssh-keygen -t rsa -b 4096 -f privkey.pem
Only RSA keys in PEM format are currently accepted by xbps.
Once the RSA private key is ready you can use it to sign the repository:
$ xbps-rindex --sign --signedby "I'm Groot" --privkey privkey.pem $PWD/hostdir/binpkgs
If --privkey is unset, it defaults to
~/.ssh/id_rsa
.
If the RSA key was protected with a passphrase you'll have to type it, or alternatively set
it via the XBPS_PASSPHRASE
environment variable.
Once the binary packages have been signed, check the repository contains the appropiate hex fingerprint
:
$ xbps-query --repository=$PWD/hostdir/binpkgs -vL
...
Each time a binary package is created, the repository must be signed as explained above with the difference that only those new packages will be signed.
It is not possible to sign a repository with multiple RSA keys.
Rebuilding and overwriting existing local packages
If for whatever reason a package has been built and it is available in your local repository
and you have to rebuild it without bumping its version
or revision
fields, it is possible
to accomplish this task easily with xbps-src
:
$ ./xbps-src -f pkg xbps
Reinstalling this package in your target rootdir
can be easily done too:
$ xbps-install --repository=/path/to/local/repo -yff xbps-0.25_1
Please note that the
package expression
must be properly defined to explicitly pick up the package from the desired repository.
Enabling distcc for distributed compilation
Setup the slaves (machines that will compile the code):
# xbps-install -Sy distcc
Enable and start the distccd
service:
# ln -s /etc/sv/distccd /var/service
In the host (machine that executes xbps-src) enable the following settings in the void-packages/etc/conf
file:
XBPS_DISTCC=yes
XBPS_DISTCC_HOSTS="192.168.2.101 192.168.2.102"
Cross compiling packages for a target architecture
Currently xbps-src
can cross build packages for some target architectures with a cross compiler. The supported target list is the following:
- i686 - for Linux i686 GNU.
- i686-musl - for Linux i686 Musl libc.
- armv6hf - for Linux ARMv6 EABI5 (LE Hard Float / GNU)
- armv6hf-musl - for Linux ARMv6 EABI5 (LE Hard Float / Musl libc)
- armv7hf - for Linux ARMv7 EABI5 (LE Hard Float / GNU)
- armv7hf-musl - for Linux ARMv7 EABI5 (LE Hard Float / Musl libc)
- mips - for Linux MIPS o32 (BE Soft Float / GNU)
- mipsel - for Linux MIPS o32 (LE Soft Float / GNU)
- x86_64-musl - for x86_64 Musl/Linux
If a source package has been adapted to be cross buildable xbps-src
will automatically build the binary package(s) with a simple command:
$ ./xbps-src -a <target> pkg <pkgname>
If the build for whatever reason fails, might be a new build issue or simply because it hasn't been adapted to be cross compiled.
Using xbps-src in a foreign linux distribution
xbps-src can be used in any recent linux distribution matching the cpu architecture.
To use xbps-src in your linux distribution use the following instructions. Let's start downloading the xbps static binaries:
$ wget http://repo.voidlinux.eu/static/xbps-static-latest.<arch>-musl.tar.xz
$ mkdir ~/XBPS
$ tar xvf xbps-static-latest.<arch>.tar.xz -C ~/XBPS
$ export PATH=~/XBPS/usr/sbin:$PATH
A privileged group is required to be able to chroot with xbps-src, by default it's set to the xbuilder
group, change this to your desired group:
# chown root:<group> ~/XBPS/usr/sbin/xbps-uchroot.static
# chmod 4750 ~/XBPS/usr/sbin/xbps-uchroot.static
Clone the void-packages
git repository:
$ git clone git://github.com/voidlinux/void-packages
and xbps-src
should be fully functional; just start the bootstrap
process, i.e:
$ ./xbps-src binary-bootstrap
The default masterdir is created in the current working directory, i.e void-packages/masterdir
.
Remaking the masterdir
If for some reason you must update xbps-src and the bootstrap-update
target is not enough, it's possible to recreate a masterdir with two simple commands (please note that zap
keeps your ccache/distcc/host
directories intact):
$ ./xbps-src zap
$ ./xbps-src binary-bootstrap
Keeping your masterdir uptodate
Sometimes the bootstrap packages must be updated to the latest available version in repositories, this is accomplished with the bootstrap-update
target:
$ ./xbps-src bootstrap-update
Building i686/32bit packages on x86_64
A new x86 masterdir
must be created to build 32bit packages:
$ ./xbps-src -m masterdir-x86 binary-bootstrap i686
Packages that are multilib only (32bit) must be built on a 32bit masterdir.
$ ./xbps-src -m masterdir-x86 ...
Building packages natively for the musl C library
A native build environment is required to be able to cross compile the bootstrap packages for the musl C library; this is accomplished by installing them via binary-bootstrap
:
$ ./xbps-src binary-bootstrap
Now cross compile base-chroot-musl
for your native architecture:
$ ./xbps-src -a x86_64-musl pkg base-chroot-musl
Wait until all packages are built and when ready, prepare a new masterdir with the musl packages:
$ ./xbps-src -m masterdir-x86_64-musl binary-bootstrap x86_64-musl
Your new masterdir is now ready to build natively packages for the musl C library. Try:
$ ./xbps-src -m masterdir-x86_64-musl chroot
$ ldd
To see if the musl C dynamic linker is working as expected.
Contributing
See Contributing for a general overview of how to contribute and the Manual for details of how to create source packages.