=pod

=head1 NAME

slacktrack - build Slackware packages from B<.build> scripts

=head1 SYNOPSIS

B<slacktrack> B<[>optionsB<]> -p B<">packagefilenameB<"> B<">buildscriptB<">


=head1 DESCRIPTION

B<slacktrack> is a packaging tool to build Slackware packages 
from simple B<.build> scripts, some of which can be found in the distribution
source tree.  B<slacktrack> has many features available to eliminate the
majority of the manual element involved with producing packages from
these scripts.  B<slacktrack> uses the standard Slackware B<makepkg> program
to produce the resulting packages.


=head1 OPTIONS - GENERAL

=over 4

=item B<-h>, B<--help>

Show the available options and exit

=item B<-v>, B<--version>

Show the version information and exit

=back

=head1 OPTIONS - SLACKWARE 'makepkg' PACKAGE MAKER 

The values from these options are passed to the Slackware
B<makepkg> tool.

=over 4

=item B<-p>, B<--package> <package_name>  

Resulting tar file name of the package.  This will be in the format
of B<name>-B<version>-B<arch>-B<build>.tgz

For example: B<slacktrack>-B<@VERSION@>-B<i386>-B<1>.B<tgz>

=item B<-s>,  B<--nosymlinks>

Tell B<makepkg> not to search for symlinks in the package directory

=item B<-r>,  B<--setrootowner>

Tell B<makepkg> to set permissions on directories to 755 and owners to root.root

See also B<--chown-bdirs-root-bin>

=item B<--mpopts>

Supply additional options to B<makepkg>.  

Example: # B<slacktrack> --mpopts "--prepend" -Qnp foo-1.0-i486-1.tgz ./foo.build

B<Note:> You B<must> include the additional options in either
quotes (as shown in the example above) or single quotes otherwise slacktrack will take them
as options to itself.

=back

=head1 OPTIONS - SPECIFIC SLACKTRACK OPTIONS

=over 4

=item B<-t>,  B<--notidy>

Do not delete temporary package directory when slacktrack has finished.
slacktrack uses a temporary work space directory in /var/tmp (by default).
This directory contains the package.tgz contents.  This option can be
useful when you are having difficulties with building the package, or
for debugging slacktrack.
slacktrack will inform you of the (randomly named) temporary directory
when it has finished.

=item B<-b>,  B<--buildstore> <directory> 

Specify the location in which to store the built .tgz packages.
By default this is B</tmp/built-slackwarepackages>, but you may wish
to change it to another location.  If this directory does not exist 
then slacktrack will default to using B</tmp>

This directory also will contain any logs and the package description
file (if specified).


=item B<-l>,  B<--logfile> <filename>

slacktrack logs every element of the compilation and build process
that the B<build script> outputs along with slacktrack's own on-screen
output.  The log file is especially useful for debugging a failed build.
The default log path is B<E<lt>buildstore_pathE<gt>/E<lt>package_nameE<gt>.log>

This option permits the user to specify a different directory for the
logs rather than storing the .log in the same directory as the .tgz.

=item B<-n>,  B<--nologging>

Do not save the log file when slacktrack has finished.
See B<--logfile> above for a description of the contents of the log file.

The default is to log.

=item B<-D>,  B<--md5sum>

Create an MD5sum of the resulting package file in the package
store directory (where the resulting package will be built; usually
this is F</tmp>).  The MD5sum file will be the same name as the resulting 
package file but with  B<.md5> suffixed (e.g. foobar-1.0-i486-5.tgz.md5).

This option does nothing if the B<--nocreatetgz> option has been
specified.

=item B<-G>,  B<--gpg-sign> <key id>

Sign the resulting package file with specified GnuPG key and
placed the detached, armored signature in the package store directory (where
the resulting package will be stored; usually this is F</tmp>). The GnuPG
signature file will have the same name as the resulting package file but with
an extra B<.asc> suffixed (e.g. foobar-1.0-i486-5.tgz.asc).

This option does nothing if the B<--nocreatetgz> option has been specified.


=item B<-z>,  B<--gzman>

Slackware's standard is that all man pages should be gzipped.
This option makes slacktrack gzip any man pages that exist within the
directories F</usr/man>, F</usr/local/man> and F</usr/X11R?/man>.

The default is not to gzip man pages.

Also see the B<--gzman-no-symfix>, B<--gzinfo> and B<--gzinfo-no-symfix> options.

=item B<-I>,  B<--gzinfo>

Slackware's standard is that all GNU info pages should be gzipped.
This option makes slacktrack gzip any info pages that exist within the
directories F</usr/info> and F</usr/local/info>

The default is not to gzip info pages.

Also see the B<--gzinfo-no-symfix>, B<--gzman> and B<--gzman-no-symfix> options.

=item B<-P>,  B<--delete-perllocalpod>

Delete any B<perllocal.pod> files found in the package's /usr/lib directory.

These files contain information about a system's Perl packages installed
in addition to the vendor's Perl distribution.   Typically these files are
created by the installation script of the additional Perl add-on package.

However, they are snapshots of the particular system on which the Slackware
package is made - and most likely will not reflect the target system's
environment (the target is unlikely to have an identical set of additional
Perl modules installed); thus these files should not be present in Slackware packages.

The default is not to delete these files.

=item B<-K>,  B<--delete-usrinfodir>

Delete the package's /usr/info/dir file if it exists.  This file is
a special file used by the GNU 'info' program to provide the user
with a list of the info pages present on the system.
Some software's Makefile will create a new 'dir' page that only contains
information pertaining to the newly compiled software itself, rather than 
appending to the existing list of software.

In the main you will want to use this option to avoid replacing the original
/usr/info/dir file.

However, the default is not to delete this file.


=item B<-x>,  B<--exclude> B<pattern for egrep>

slacktrack traverses the filesystem using the UNIX 'find' utility and generates
a 'snapshot' of the contents.  grep -E (or B<'egrep'>) is then used to remove
a number of paths and specific files from this snapshot; this is because
these paths/directories either are locations that should never be installation
destinations for software, or are system files that are subject to change 
moment to moment.

This option allows you to replace the entire default pattern.

By default, slacktrack excludes the following:

EXCLUDE_LIST="${PWD}$|${PWD}|/etc/ntp/drift|/var/run/|/var/run$|/var/lib/dhcpcd|/var/lib/dhcpcd$|/etc/dhcpc/|/etc/dhcpc$|/var/cache/|/var/cache$|/run$|/run/|/media$|/media/|/srv$|/srv/|/selinux$|/selinux/|/var/lib/rpm|/var/lib/rpm$|/var/yp$|/var/yp/|/sys$|/sys/|/initrd$|/initrd/|/dev/bus$|/dev/bus/|/dev/char$|/dev/char/|/dev/rfkill|/dev/input$|/dev/input/|/dev/.udev/|/dev/.udev$|/dev/vc$|/dev/vc/|/dev/console|/dev/pts$|/dev/pts/|/dev/ptmx|/dev/tty|/var/log|/etc/mtab|/etc/resolv.conf|/etc/ld.so.cache|/tmp|/root|/proc|/var/tmp|/var/run/utmp|/var/spool/cron/cron|/var/lib/NetworkManager|/var/lib/NetworkManager$|/usr/man/whatis|/usr/local/man/whatis|/var/lib/pgsql$|/var/lib/pgsql|/var/lib/mysql$|/var/lib/mysql"

This is a pattern for grep -E.  Please familiarise yourself with the grep man page
if you wish to make changes.  

It is recommended that these defaults are unchanged.

In addition, slacktrack excludes the PWD (present working directory) from which slacktrack
was invoked.  This allows a package's source directory to be in a non-default excluded
path and receive updates (such as log files) and avoid slacktrack including them in the
newly created package file.

=item B<-o>,  B<--no-fs-search> B<pattern for find -regex (pre and post file system scans)>

Prior to beginning a build, and post build, slacktrack uses the 'find' command to scan
the OS' file system, and stores these records.  The difference between the two records are used to
determine the package's contents.

There are some directory paths that should never be included within packages.  By default
this list is:

SEARCH_EXCLUDE_LIST='mnt\|sys\|proc\|tmp\|home\|lib/udev/devices'

B<Note:> The list uses escaped pipes and does not have a leading forward slash. The regex is
applied to the --rootdir argument, so the excluded paths should be relative to that.

This is a good set for a default Slackware installation, but some users have data
in other directories which should never be included in a package.  Scanning these additional
directories takes extra time and serves no purpose.

While the B<-x,--exclude> operator is applied to the final package contents list, B<-o, --no-fs-search> is applied
before and can be used to significantly speed up the searches that build the before/after file lists.

=item B<-d>,  B<--depend> B<'>package1,package2B<'> 

Ensure the given Slackware packages are installed before executing
the build script.

This is a primative method of build-time dependency checking.
It simply prevents the build from failing, or a certain feature from
being compiled out because (at build time) you had not got a certain
library installed.

The packages are wildcarded by slacktrack, thus you do not have to specify
version information.  To depend on 'oggutils' being installed, you would
specify B<-d "oggutils"> and slacktrack would find any installed version of the
Slackware oggutils package.

No depdendencies are checked by default.

=item B<-j>,  B<--striplib>

The Slackware standard is to run B<strip --strip-unneeded> over any 
shared objects.  This option causes slacktrack to strip any .so objects in 
/usr/lib, /usr/lib64, /lib64, /lib, /usr/local/lib and /usr/libexec

Also see option -S, --stripallexec

The default is not to strip.


=item B<-A>,  B<--striparchives>

This option causes slacktrack to run the B<strip> program against any
.a (archive) files that it finds in the package's directory.  

Only debugging symbols are stripped (B<strip -g>).

For information about such files you should read ar(1) and ranlib(1).

B<Note:> This option strips any .a files it finds within the package's directory 
rather than limiting itself to a pre-set list of directories (as with
the other strip options that slacktrack provides).

Also see option -S, --stripallexec

The default is not to strip.


=item B<-k>,  B<--stripbin>

The Slackware standard is to run B<strip --strip-unneeded> over any 
binary files.  This option causes slacktrack to strip any binaries found
in /bin, /sbin, /usr/bin, /usr/sbin, /usr/local/bin, /usr/local/sbin and
/usr/X11R?/bin.

Also see option -S, --stripallexec

The default is not to strip.


=item B<-S>,  B<--stripallexec>

This option performs B<--striplib>, B<--stripbin> and B<--striparchives> but rather than
limiting itself to a pre-set list of directories, it strips any files (with execute permissions) 
that the B<file> program reports as being unstripped ELF binaries.  This includes
B<.a archives>.

The purpose of this command is to strip binaires and shared object files
that are B<not> in the normal locations.  An example of a known deviations is B</opt>

Using this option is slower (especially when used with packages containing many
files in deep directory structures) than using B<--striplib>, B<--stripbin> or B<--striparchives> 
options individually.

If this option is also specified with B<--striplib>, B<--stripbin> or B<--striparchives> then
those options are dropped in favour of the B<--stripallexec> mode of operation.

The default is not to strip objects of any type.

=item B<-c>,  B<--createdescription>

From Slackware 8.1 and upwards, the package series directories contain
a B<name>-B<version>-B<arch>-B<build.txt> along with the package.

Using this option causes slacktrack to create such a file in the 
build store directory (see the B<--buildstore> option)

The default is not to create a description file.

=item B<-e>,  B<--chown-bdirs-root-bin>

Prior to Slackware v11, the standard was to have the /bin, /sbin, /usr/bin, /usr/sbin, /usr/local/sbin, /usr/local/bin and /usr/X11R?/bin directories owned by root:bin.  

Slackware v11 changed binary directory ownerships to 'root:root'. 
B<If you are building packages for a version of Slackware prior to version 11,
you should use this operator>.

B<Note:> If you use the B<--setrootowner> option then B<makepkg> will
reset the directory permissions to root.root

The default is not to set these ownerships.

=item B<-f>,  B<--chown-bfiles-root-bin>

Prior to Slackware v11, the standard was to have binaries contained within 
the /bin, /sbin, /usr/bin, /usr/sbin, /usr/local/sbin, /usr/local/bin 
and /usr/X11R?/bin directories owned by root:bin.

B<If you are building packages for a version of Slackware prior to version 11,
you should use this operator>.

The default is not to set these ownerships.

=item B<-m>,  B<--chown-bins-root-root>

The Slackware standard is to have the /bin, /sbin, /usr/bin, /usr/sbin,
/usr/local/sbin, /usr/local/bin and /usr/X11R?/bin directories owned by root:root.

If you are intending on building Slackware compliant packages, please use this
operator.  

B<If you are building packages for Slackware versions prior to 11,
please see the two operators listed above>.

The default is not to set these ownerships.

=item B<-g>,  B<--chmod644docs>

Often when installing documents, the permissions vary wildly. 
It is preferable if documents are chmod 644 and owned by
the user 'root' and group 'root'.

Using this option causes slacktrack to set all files contained
within F</usr/doc> to chmod 644 and runs chmod -R root.root on the package's
F</usr/doc> directory.

The default is not to set these permissions.

=item B<-U>,  B<--nousrtmp>

When compiling some programs (such as Apache), slacktrack sometimes picks up
the /usr/tmp symlink.  This symlink is part of another Slackware package
and therefore should not be present in other packages.

Using this option causes slacktrack to prevent this symlink from appearing
in the resulting package.

This behaviour is not the default.

=item B<-Q>, B<--standard>

This option is the combination of the following slacktrack's options:
B<--gzman> (B<-z>), B<--gzinfo> (B<-I>), B<--delete-usrinfodir> (B<-K>),
B<--stripallexec> (B<-S>), B<--createdescription> (B<-c>),
B<--chown-bdirs-root-bin> (B<-m>), B<--chown-bins-root-root> (B<-f>),
B<--chmod644docs> (B<-g>), B<--delete-perllocalpod> (B<-P>) and B<--nousrtmp> (B<-U>). 

It can be considered the quick way to build a package which follows 
the Slackware standard without specifying each
individual command line switch.

You would use this option as follows:

# B<slacktrack> -Qp foo-2.0-i486-1.tgz ./foo.build


=item B<-T>,  B<--tempdir> B<'><path>B<'>

slacktrack uses a temporary work space to store the package contents.
By default, slacktrack will choose one in /var/tmp.  However, you may wish
to change it to another location should there not be enough space in 
/var/tmp to hold the temporary files.

Please note that if the temporary directory (either automatically chosen by
slacktrack or specified using this operator) already exists, slacktrack
will exit with error code B<6>; the directory should be deleted prior
to invoking slacktrack.

=item B<-C>,  B<--nocreatetgz>

Do not execute the Slackware B<makepkg> program when the build script
finishes.  You may wish to use this option if you want to run makepkg
by hand.

Using this option implies B<--notidy>

The default is to execute B<makepkg>

=item B<-L>,  B<--nologhardlinks>

Some software distribution archive build scripts will use ln (hard link)
instead of ln -s (soft link).  Hard links which should not be 
allowed to make their way into a package that is to be distributed.

By default, hard links are logged to screen and an additional 
.hardlinks.log file will be created in the build store directory.

=item B<-O>,  B<--chmod-og-w>

Run 'chmod -R og-w' over the package directory.

Some packages (such as PHP 4.3.0) install globally writeable files 
when it should not.  This option runs chmod -R og-w over the entire
package directory.

This behaviour is not the default.

=item B<-Z>,  B<--gzman-no-symfix>

Do not repair broken man page symlinks caused by the B<--gzman> option

Some man pages are symlinks to other man pages.  When the
original file is gzipped, its name changes to name.x.gz
and thus the symlink is broken.  

This option repairs such broken symlinks by renaming the 
symlink to name.x.gz and pointing it to the new .gz man page file.
The symlink also has to be named .gz otherwise the B<man> program
fails because it doesn't know that it is expecting a gzipped file.

The default behaviour is to repair any broken symlinks.

=item B<-F>,  B<--gzinfo-no-symfix>

Do not repair broken info page symlinks caused by the B<--gzinfo> option

Some info pages are symlinks to other info pages.  When the
original file is gzipped, its name changes to name.gz
and thus the symlink is broken.

This option repairs such broken symlinks by renaming the
symlink to name.gz and pointing it to the new .gz info page file.

The GNU B<info> program is capable of working with broken symlinks
but it is desirable to have the symlink corrected.

The default behaviour is to repair any broken symlinks.


=item B<-M>, B<--extra-mandir> <path>

Append additional man page directories to the default list (F</usr/man>, F</usr/local/man>, F</usr/X11R?/man>).

You would want to use this option if you are storing man pages in non-system
locations such as /opt/kde/man and wish to gzip them using slacktrack's B<--gzman> option.

Extra paths can be comma separated as shown below:
 B<# slacktrack --extra-mandir /opt/kde/man,/opt/prog/man>

B<Warning:> Do B<not> specify paths other than directories that will
contain man pages, otherwise normal files will become gzipped !


=item B<-W>, B<--extra-infodir> <path>

Append additional info page directories to the default list (F</usr/info>, F</usr/local/info>).

You would want to use this option if you are storing info pages in non-system
locations such as /opt/kde/info and wish to gzip them using slacktrack's B<--gzinfo> option.

Extra paths can be comma separated as shown below:
 B<# slacktrack --extra-infodir /opt/kde/info,/opt/prog/info>

B<Warning:> Do B<not> specify paths other than directories that will
contain info pages, otherwise normal files will become gzipped !


=item B<-E>, B<--extra-libdir> <path>

Append additional shared object (library) directories to the default list (/lib, /usr/lib, /usr/local/lib).

You would want to use this option if you are storing shared objects in non-standard locations
and wish slacktrack to strip them using the B<--striplib> option.

Multiple paths may be supplied by comma separating them.

=item B<-B>, B<--extra-bindir> <path>

Append additional binary directories to the default list 
(/bin, /sbin, /usr/bin, /usr/sbin, /usr/local/bin, /usr/local/sbin, /usr/X11R?/bin).

You would want to use this option if you are storing binaries in non-standard locations
and wish slacktrack to strip them using the B<--stripbin> option.

Multiple paths may be supplied by comma separating them.

=item B<-N>, B<--strip-prog> <path>

Specify a different binary name for the B<strip> program.  You may need
to use this option if you are cross compiling and wanting to strip
the resulting binaries.

Example:
# B<slacktrack> --strip-prog /usr/local/arm/2.95.3/bin/arm-linux-strip -mnzSIP foo-2.0-arm-1.tgz

By default slacktrack will use the version of strip that it finds 
in the $PATH.


=item B<-R>, B<--run-after> <command>

Run the specified command/script after the specified build script has finished
and prior to creating the package.

The purpose of this is to allow the user to inspect and if required, modify
the contents of the package before the package file is created.

B<Note:> The CWD (working directory) is changed to the package's root
directory before the specified command is executed.  This allows you to
specify (for example) /usr/bin/mc (Midnight Commander) and have
it automatically display the contents of the package.

Example:

The following slacktrack command would run the Midnight Commander program
F<mc> prior to creating the package B<foo-2.0-arm-1.tgz>.

# B<slacktrack> -Rmc -mnzSIP foo-2.0-arm-1.tgz

By default slacktrack does not execute any commands prior to creating
the package.

=item B<--run-after-withlog> <command>

This option is the same as B<-R>, B<--run-after>, with the only difference being that
any output from that script is logged to the slacktrack build log.

If any of your post build scripts perform any checks that should be inspected
manually after the package build completes, you'd be best choosing this option; but
note that logging may not work properly for any scripts that require keyboard
input or use curses based applications (such as 'dialog').

=item B<--showdeps>

This option lists the B<installed> Slackware packages (those that appear in 
F</var/log/packages>) that contain shared libraries upon which your new 
package depends.  

The purpose of this option for interest only but you may 
find it useful to ensure that you haven't built a package on a box that 
Xfree86 (for example) installed but intend to install and use the package 
on a box that does not, when the package has become linked against X's 
libraries.

Using this option will also flag up 'orphaned' libraries (ones that 
do not belong to an installed package, which is especially handy 
if you're going to be distributing a package).

The package dependencies (and orphans, if any) will be logged (regardless 
of whether logging is turned off) in text files that will be stored 
in the package build store (usually /tmp) under the following names:

packagename.orphaned_ld_deps.log

packagename.ld_deps.log

B<Note:> Slackware does not have any form of dependency checking and
as such any file you produce will not be considered by
pkgtools.  However, third parties have developed a standard that uses
a single file to assist with the handling of automated dependency checking 
(when the package is installed via 3rd party package managers such as 
swaret, slapt-get et al).  This file resides within the package as 
F</install/slack-required>. You may like to use this feature of 
slacktrack to help you generate such a file.

The default behaviour is not to display dependencies.

=item B<-X>, B<--delete-overlapping>

After the filesystem comparison has been completed, slacktrack determines whether there
are any files that overlap between the new package and those already installed on the
running system.  Normally there should be no overlapping files; however, some packages
that provide additional Python or Perl libraries often re-process or re-compile some parts
of the vendor-supplied package contents, causing slacktrack to correctly identify that
the files have changed after the package build process has finished.

It is undesirable for packages to have overlapping files because it is not
possible to identify which is the master package.  One of the side effects may be that
the end user has problems with the installation order of the packages.

slacktrack will identify any overlapping files and match them with the package(s) to which the file also belongs.
Using this operator, slacktrack will erase any overlapping files from the content of the newly
created package.

The best practice is to review the package build log and investigate any overlapping files.  
It is the responsibility of the package builder (you) to determine why the file is overlapping
and decide what to do with them.

=item B<--allow-overlapping>

Allow the package to contain files that overlap with packages that are already installed
on the system.  This is the default behaviour, if if you like to use slacktrack's -Q option to build
an otherwise Slackware standards compliant package, you will need to supply this option afterwards
to permit files to overlap.

=item B<--touch-filesystem-first>

Use the UNIX touch(1) tool to touch (set the objects' time stamps to the current system time) 
a pre-defined list of directories and their contents prior to generating the
snapshot of the filesystem.

The pre-defined paths are:
    /opt /bin /boot /dev /etc /install /lib /sbin /usr /var

It B<excludes> by default '/lib/udev/devices' since this contains
live device data that doesn't take kindly to being touched.
You may see errors from 'touch' about certain binaries, including
/sbin/vol_id because this is a symlink into /lib/udev/devices.

This is intended to be used on a throwaway development installation
that's reinstalled daily or more often. 

The reason behind this is that if you run slacktrack and your build
partially fails, then it will leave some data on the filesystem.
You then fix the problem and re-try: this time the build may succeed.
However, if the original data on the filesystem from the first
part-failed build has *not* changed (for example, if it was some static data that
was copied with cp -a (preserved time stamp & ownership)) between
the first part-failed build and second successful build, slacktrack
will miss this data from the final package file.

This option updates the file stamps contained within standard package
directories, therefore allowing slacktrack to detect changes
(even if the data contains an *old* time stamp from 1982, it will still
detect the difference).

B<Note:> This is an expert option and is not recommended for use unless
you are working on a throw-away development installation.

=item B<--touch-filesystem-faster>

This operator performs the same function as B<--touch-filesystem-first> except
that it uses a faster method; except that potentially speed comes at a price.

If this method finds files or directories with spaces in the name, it
may create empty files in your package's source build directory.

For example:

B</usr/doc/prog-2.0/FILE WITH A SPACE IN IT>

You may find that you have six new files, "FILE", "WITH", "A", "SPACE," "IN", and "IT" existing
in your package's build source directory.

However, if you know that there are no files or directories with spaces in their names,
feel free to use this option in preference to B<--touch-filesystem-first>.

B<Note:> This is an expert option and is not recommended for use unless
you are working on a throw-away development installation.


=item B<-Y>, B<--delete-orphaned-pyc> 

After the build has completed, this option scans the contents of the new package,
and if it finds any '*.pyc' files without a matching '*.py' file, the *.pyc file 
will be removed from the package contents (but not from the filesystem).

This scan only checks the content of the B<package> not the filesystem.  There may be
a corresponding '*.py' file on the filesystem, but it wasn't created or modified
during the build process of this particular package.

When building Slackware's 'ap/linuxdoc-tools' package, we found that 'gnome doc-tools' 
was causing some Python '*.py' system files from the Python package to be recompiled 
(generating '*.pyc' files) but was not modifying the original '*.py' files.  
This meant that slacktrack was correctly detecting the changed '*.pyc' files and including
them in the 'linuxdoc-tools' package; but this meant that we had file overlap
with the 'd/python' package.  Since the original '*.py' files were not modified, 
and the '*.pyc' files already existed in the Slackware Python package, they didn't
need to be included in the 'linuxdoc-tools' package - and the overlapping files 
would have caused problems with package upgrades.

This option is not on by default because it's quite conceivable that the user
may wish to include '*.pyc' files without '*.py' files.

If the directories and parent directories containing the *.pyc files become
empty after this operation, then these directories are removed from the package.

=back

=head1 SPECIAL SLACKTRACK ENVIRONMENT VARIABLES

slacktrack makes a small number of environment variables available to the
build script(s).  The variables allow build scripts to gain access to 
various inner-workings of slacktrack.

=over 4

=item B<SLACKTRACKFAKEROOT>

This directory is the 'root' directory of the package.  You may wish
to access this directory during build or post-build time so that you can perform
special operations that slacktrack itself cannot perfom.

However, the to-be-packaged contents won't exist in this directory until
B<after> the build script finishes and the package has installed itself
to the filesystem; but you can still pre-populate it with content if you wish,
although typically you'd perform these actions directly onto the filesystem
and let slacktrack take care of packaging it.

For example, whilst slacktrack is able to strip all ELF objects, it may
be that a small number of the objects will not function when stripped, yet 
the rest will.  Therefore you cannot use slacktrack's stripping options
to accomplish this task; instead you can access the package's directory
directly.  

You could do this using the following script, called from slacktrack
using the B<-R, --run-after> operator:

=item # B<slacktrack> -R $CWD/postbuildfixes.sh -Qp foo-1.0-i486-2.tgz ./foo.build


B<Example post build script 1:>


Where the 'postbuildfixes.sh' script contains:

B<( cd ${SLACKTRACKFAKEROOT} 
      strip usr/bin/foo
      strip bin/bar ) >


B<Example post build script 2:>

Another example would be to remove known files that were detected by slacktrack
as being changed/added/updated during the build process, but that we do not want
to be packaged.  This is an easier method than using the B<-x,--exclude> operator.

B<# Incase you had CUPS running:
  rm -rf etc/cups etc/printcap
  # crond:
  rm -rf var/spool/cron
  rmdir var/spool
  # perllocal.pod files don't belong in packages.
  # SGMLSPL creates this:
  find . -name perllocal.pod -print0 | xargs -0 rm -f
  # Some doc dirs have attracted setuid.
  # We don't need setuid for anything in this package:
  chmod -R a-s . 
>

B<Note:> You may use any shell commands once inside the package's root directory
but be careful never to specify any paths within the B<real> root directory (for example
F</usr> rather than F<usr>) in any of your commands.

=back


=over 4


=item B<SLACKTRACKSCRATCHDIR>

This directory provides a temporary 'scratch' directory for use by the
build scripts.  Its purpose is to allow the author to simplify the build scripts 
by removing the need to create and manage temporary directories where
the source archives will be unpacked.

Example usage:

B<   cd ${SLACKTRACKSCRATCHDIR}
   tar jxf /path/to/source/ball.bz2
   cd ball-2.3
   ./configure && make install >

This directory is subject to the same command line options as the
rest of the slacktrack temporary build tree; if --notidy is specified
then this directory will remain, otherwise it is deleted.

=back


=head1 EXAMPLES

=over 4

=item # B<slacktrack> -p foo-0.10-i386-1.tgz '/bin/sh -x foo.build'

This is the minimum selection of options you must pass to slacktrack.
You are simply telling slacktrack the name of the resulting package file
and specifying that slacktrack should launch "foo.build" via "/bin/sh"

=item # B<slacktrack> -jmkznp bar-3.20-sparc-5.tgz ./bar.build

We are telling slacktrack to strip libraries, chown root:root /bin 
/sbin, /usr/bin, /usr/sbin, /usr/local/sbin, /usr/local/bin and /usr/X11R?/bin directories, 
chown root:root files in the binary dirs, strip binaries found in the binary dirs listed above 
and gzip man pages.  

The resulting Slackware package name is 'bar-3.20-sparc-5.tgz'

Note that I have compounded the various options;  the above option list could
also be specified as B<-j -m -k -z -n -p bar-3.20-sparc-5.tgz>

=back

There are various example scripts in F</usr/doc/slacktrack-@VERSION@/examples>

=head1 WARNINGS

=over 4


=item B<Do not use slacktrack on production machines>

Please do not run slacktrack on a production machine.  Infact, it is advisable
not build B<any> packages (either B<SlackBuild> or B<.build>) on production machines.

Always use a development box.


=item B<Slackware versions>

slacktrack has only been tested on Slackware 8.1 & Slackware-9 and Splack (Slackware on SPARC, 
using Slackware 9's pkgtools & tar-1.13).

It may works on previous releases of Slackware, it may not.

=item B<slacktrack default working space>

By default, slacktrack puts its work space in B</var/tmp/>

It is essential that you have enough disk space on the
partition on which /var/tmp resides.  If you do not then you 
can pass B<--tempdir> to slacktrack to change the base temporary directory:

# B<slacktrack> --tempdir /tmp/slacktrack -jefknzp "foobar-4.1-sparc-2.tgz" "/bin/sh foobar.build">

=back

=head1 RETURN VALUES

These are the exit codes that slacktrack will produce when it encounters
certain problems. You may wish to use these return codes to indicate
success or failure when slacktrack is called from unattended auto builder
scripts. 

=over 4

=item B<0>
Clean exit

slacktrack exited without encountering any errors.
This is the default exit code.

=item B<1>
Reserved

This error code is not currently used.

=item B<2>
Missing command line parameters

slacktrack was called with insufficient parameters or a parameter 
that requires a value was specified but no value was given.

=item B<3>
Slackware package dependencies failed

slacktrack was asked to check that certain Slackware packages were installed.
It didn't find at least one of the specified packages.

=item B<4>
Missing external helper 

slacktrack failed to find a required external helper.  Currently the external helpers
is the Slackware 'makepkg' utility.

=item B<5>
Zero files found in slacktrack's package-content-tracking working directory

slacktrack failed to find any files installed as part of the build process.

This error may be due to any of the following reasons:

B<1.> The build script or command line specified did not exist or could not be executed.

B<2.> The build script/command line exists but failed to be executed or executed and died with an error

B<3.> The build script/command worked as expected but slacktrack failed to detect any activity.

It is suggested that you run B<slacktrack> with the --notidy option and inspect
the working space directory in /var/tmp/ to discover what the problem is.

=item B<6>
Possibly unsafe to continue operation.

slacktrack determined that it was possibly unsafe to continue.  This may be
because it found the temporary directory to already exist (slacktrack needs
to wipe the temporary directory), or it may get to a point where it needs to
overwrite an existing file which would require manual intervention.

Since slacktrack is designed to be scriptable, it will never prompt for human
interaction - just fail with pre-set error codes which can be collected by 
caller scripts.

=back

=head1 FILES

F</usr/bin/slacktrack> the slacktrack script

F</usr/doc/slacktrack-@VERSION@/LICENCE> a copy of the GPLv2 licence

F</usr/doc/slacktrack-@VERSION@/OVERVIEW> an overview of the Slackware package system & build scripts

F</usr/doc/slacktrack-@VERSION@/PACKAGE_BUILDING_CHECKLIST> a checklist for package builders

=head1 AUTHOR

Stuart Winter <mozes@slackware.com> 

=head1 SEE ALSO

=over 4

B<makepkg>(8), B<installpkg>(8), B<explodepkg>(8), B<removepkg>(8), B<pkgtool>(8), B<upgradepkg>(8), B<slackdtxt>(8)

=back
=cut