mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-21 11:39:53 +08:00
bd8757b313
2000-12-08 Alexandre Petit-Bianco <apbianco@cygnus.com>
* fastjar: Imported.
From-SVN: r38145
76 lines
2.7 KiB
Plaintext
76 lines
2.7 KiB
Plaintext
=======
|
|
FastJar 0.90
|
|
|
|
12/6/1999
|
|
=======
|
|
|
|
FastJar is an attempt at creating a feature-for-feature copy of Sun's JDK's
|
|
'jar' command. Sun's jar (or Blackdown's for that matter) is written entirely
|
|
in Java which makes it dog slow. Since FastJar is written in C, it can create
|
|
the same .jar file as Sun's tool in a fraction of the time. On my system,
|
|
Sun's jar takes 50 seconds to create a 10MB jar file, while FastJar only takes
|
|
a little over a second.
|
|
|
|
The reason I wrote fastjar is that building .jar files is a regular process
|
|
of the build where I work. The way we have it setup, you have to re-create
|
|
the .jar file everytime you want to test it out, which is about every 5 minutes
|
|
when I'm busy coding. The .jar file wasn't -that- big, but it did take about
|
|
30 seconds to be made, and watching all the garbage collection messages was
|
|
pretty irritating as well. I probably wasted a half-hour a day watching
|
|
Sun's jar tool chug along. By writing the program in C, I spend much less time
|
|
banging my head against the monitor waiting for the build to finish. Yay!
|
|
|
|
FastJar has been tested on Solaris and Linux 2.2.x systems and nothing else.
|
|
It should compile/run without any problems on either system, provided you have
|
|
zlib installed.
|
|
|
|
Please mail any bug reports to burnsbr@ucs.orst.edu.
|
|
|
|
If you use FastJar and want me to add the rest of the features, send me mail
|
|
(toast@users.sourceforge.net). I'll be much more likely to put more work into this
|
|
if I know other people find it useful other than me.
|
|
|
|
As always, this not being a final release, bugs may exist. I test each
|
|
release pretty well, but I can always miss things...
|
|
|
|
Compression will slow things down quite a bit. A 10MB jar file takes about
|
|
1 second on my machine without compression, and 9 seconds with it. If you
|
|
want fastjar to be fast, use the -0 (zero, not O) flag to turn off compression.
|
|
|
|
Supported flags:
|
|
--------------------------
|
|
-c | create a new archive
|
|
-v | verbose output
|
|
-f | specify archive file name
|
|
-m | specify existing manifest file
|
|
-M | don't create manifest
|
|
-0 | store only
|
|
-C | change to dir
|
|
-t | list contents
|
|
-x | extract contents
|
|
|
|
Unsupported flags:
|
|
----------------------------
|
|
-u | update exisiting archive
|
|
|
|
If you use the "unsupported" flags, nothing bad will happen, but then again
|
|
nothing will happen at all.
|
|
|
|
|
|
Unsupported features (in this release):
|
|
---------------------------------------------
|
|
* updating
|
|
* full manifest support (?)
|
|
|
|
Order or features for the future:
|
|
--------------------------------------------
|
|
* archive updating
|
|
* full manifest support
|
|
* filtering
|
|
* dependency checking
|
|
|
|
|
|
===========================================================================
|
|
http://fastjar.sourceforge.net
|
|
toast@users.sourceforge.net
|