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From: Deepak Bhole <dbhole@redhat.com>
To: jpackage-discuss@zarb.org

Based on the initial design specifications for a clean-binary-files, 
I have created a script that does so (with some added functionality that
became evident as necessary during design).

The original mail is here:
https://www.zarb.org/pipermail/jpackage-discuss/2005-November/009158.html

There are now 3 files:
clean-binary-files
check-binary-files
create-jar-links

Due to the complex functionality and flexibility that is expected from
the script (set), the syntax seems a bit daunting. Any input with
regards to this matter, or any other, would be appreciated.

================
Example use case
================

Suppose there is a vanilla tarball abc-1.tar.gz with some binary files
(jars) in it. In the source repo, we would want a clean copy without any
jars. We can use the scripts to achieve this:

To generate an instructions file:
clean-binary-files -e <exclusion file> -l -a abc-1.tar.gz > instructions

This creates an 'instructions' file, which contains info on what stays
and what goes.

Then, one can run:
clean-binary-files -f instructions -n -a abc-1.tar.gz

This would create abc-1-clean.tar.gz for uploading into jpp/fedora/etc.
repositories with no binary (jar) files.

In %prep for the rpm spec, one would have:
check-binary-files -f instructions -a abc-1-clean.tar.gz

This ensures that the tarball is clean, and has nothing extra, or
missing.

Following this, one can extract the tarball, cd to it, and run:
create-jar-links -f <instructions> -d <custom_jar_map>

This would call build-jar-repository and create symlinks, with extra
mappings (form vanilla jar names to jpp names) that are specifiable via
the custom jar map.

Alternatively, if you have a vanilla tarball, you can clean and create
symlinks in it's place all at once by:
clean-binary-files -e <exclusion file> -d <custom_jar_map> -a
abc-1.tar.gz

Note: If the -a <file> is not given to clean-binary-files, all actions
are performed on current directory.

--help output from each of the scripts:
-------------------
clean-binary-files:
-------------------

Usage: $0 {[-f {-, instructions_file}], [-e exclusion_file] [-l]} [-a
archive_file] [-d custom_jar_map] [-n] [-p] [-s] 

Options:
-f - The instructions file, specifying which files to keep and which
     to remove
-e - The exclusions file, specifying special binary files that are to
     be preserved, or non-binary files that are to be removed.
-l - Only list instructions (to put in instructions file), do not delete
anything.
-a - Archive file on which actions will be performed, as opposed to 
     current directory
-d - A custom jar map file (has priority over the generic one).
-n - No symlinks (i.e. only clean jars, don't run build-jar-repository
afterwards)
-p - Preserve original file names (-p to build-jar-repository)
-s - Silent mode. Won't output commands during cleanup

------------------
check-binary-files
------------------
Usage: $0 -f instructions_file [-a archive_file]

Options:
-a - Archive file on which actions will be performed, as opposed to 
     current directory
-f - The instructions file to check against.

-----------------
create-jar-links:
-----------------
Usage: $0 -f instructions_file [-a archive_file] [-p]

Options:
-a - Archive file on which actions will be performed, as opposed to 
     current directory
-p - Preserve original file names (-p to build-jar-repository)
-f - The instructions file to check against.

Cheers,
Deepak

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