vp-build/README
Juan RP b53922a2ec Major changes adding new targets and supporting build phases.
New changes include adding the following targets:

	build, configure, extract, fetch and install.

Those targets replace the not very understood old flags. Also
the code has been restructured to really understand what's going
on all the time.

--HG--
extra : convert_revision : c591d7ffd5251b7bb80e5e56bf2f4a7909c887dc
2008-10-12 20:05:52 +02:00

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pkgfs - Build packages from s(cratch|ource)
It is a simple package system manager that uses Xstow to allow packages
to be available at a master directory.
Multiple versions of a package can be installed, because they can be enabled
or disabled at the master directory anytime, to e.g allow testing different
versions of the same package by "stowning" or "unstowning" them.
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HOW TO USE IT
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Once you download it, you should edit the configuration file located at the
pkgfs directory. By default it uses the pkgfs directory in your $HOME.
If PKGFS_CONFIG_FILE is not set or specified from the command line with the
-c flag, it will first try to use the default location at
/usr/local/etc/pkgfs.conf, and as last resort in current directory.
Once that you read the "pkgfs.conf" file and configured it, you can start
installing packages by using the command:
$ pkgfs.sh install glib
Please note that it's assumed that PKGFS_TEMPLATESDIR is properly defined
and actually contains valid template files.
While installing your first package, if pkgfs couldn't find the Xstow program
specified at the configuration file with PKGFS_XSTOW_CMD, the Xstow package
will be installed and "stowned".
If the package is properly installed, it will be "stowned" automatically.
``stowned´´ means that this package is available in the master directory,
on which ``Xstow´´ has created links from DESTDIR/<pkgname>.
To remove a currently installed (and stowned) package, you can use:
$ pkgfs.sh remove glib
Please note that when you remove it, the package will also be removed
from PKGFS_DESTDIR and previously "unstowned".
pkgfs uses some db(1) btree files, to record what packages are currently
"stowned". Once you install successfully or stown a package, the package
will be registered in PKGFS_DESTDIR/.pkgfs-registered-pkg.db.
While "unstowning" a package, it won't be available anymore in the master
directory and therefore it probably won't work if used from
PKGFS_DESTDIR/<pkgname>.
Summary, to stow an already installed package (into PKGFS_DESTDIR/<pkgname>):
$ pkgfs.sh stow glib
and to unstow an already installed (stowned) package:
$ pkgfs.sh unstow glib
You can also print some stuff about any template, e.g:
$ pkgfs.sh info glib
To list installed (stowned) packages, use this:
$ pkgfs.sh list
To only extract the distfiles, without configuring/building/installing:
$ pkgfs.sh extract foo
To not remove the build directory after successful installation:
$ pkgfs.sh -C install blah
To only fetch the distfile:
$ pkgfs.sh fetch blah
To only install the package, _without_ stowning it into the master directory:
$ pkgfs.sh install-destdir blob
That's all for now folks. I hope you find it useful, as I do.
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PERFORMANCE
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pkgfs is really fast, trust me. That was one of my reasons to make my own
pkgsrc/ports alike system.
If you want benchmarks, here is one: building libX11 and all its dependencies
required (not included building xstow) with pkgfs:
251.20s real 121.36s user 53.94s system
versus pkgsrc (make install clean clean-depends and digest previously
installed):
450.41s real 167.58s user 97.31s system
That's more or less 40% faster! that's the price you pay for having those
wrappers in pkgsrc that aren't very useful on NetBSD :-)
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HOW TO MAKE TEMPLATES
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A template in pkgfs is just a small text file with a few variables that are
required to build the package. pkgfs should be easy to work on, and
making templates shouldn't be too hard... if you have made any pkgsrc, it
should be trivial.
The required variables are: pkgname, build_type, extract_sufx, url
and checksum. Also there are some optional, like make_cmd, wrksrc,
configure_args, configure_env, make_build_args, make_install_args, etc.
Please take a look at the example.tmpl file located in the templates/
directory.
Also to help you creating templates and dependencies, there's a script
that will ask you some required information and will create the template
file once the distfile is downloaded: mktmpl.sh.
Try it and let me know if you have any problem or suggestion.
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Juan Romero Pardines <xtraeme@gmail.com>