Subject: Faster src access via modem?
To: None <current-users@sun-lamp.cs.berkeley.edu>
From: Mostyn R. Lewis <mrl@teleport.com>
List: current-users
Date: 04/03/1994 20:46:29
I have a home grown mechanism to get current srcs by comparing FTP listings versus
local listings which is much less time consuming than sup over a 14.4K phone line
connection. To work it uses tar to get the updated files, so as to preserve the
file times. This presupposes a wuftpd, which you run. However, for the humble modem
connection to be reasonably efficient it would be nice to be able to FTP compressed
files (.Z or preferably .gz). Sun-lamp only does straight "get <file>.tar" and does
not allow "get <file>.tar.Z or get <file>.tar.gz".
Is it possible to change this?
A ftpconversions file like -
#strip prefix:strip postfix:addon prefix:addon postfix:external command:
#types:options:description
:.Z: : :/usr/bin/compress -d -c %s:T_REG|T_ASCII:O_UNCOMPRESS:UNCOMPRESS
:-z: : :/usr/bin/compress -d -c %s:T_REG|T_ASCII:O_UNCOMPRESS:UNCOMPRESS
: : :.Z:/usr/bin/compress -c %s:T_REG:O_COMPRESS:COMPRESS
: : :.tar:/usr/bin/tar -c -f - %s:T_REG|T_DIR:O_TAR:TAR
: : :.tar.Z:/usr/bin/tar -c -Z -f - %s:T_REG|T_DIR:O_COMPRESS|O_TAR:TAR+COMPRESS
:.gz: : :/usr/bin/gzip -d -c %s:T_REG|T_ASCII:O_UNCOMPRESS:UNCOMPRESS
:-gz: : :/usr/bin/gzip -d -c %s:T_REG|T_ASCII:O_UNCOMPRESS:UNCOMPRESS
: : :.gz:/usr/bin/gzip -c %s:T_REG:O_COMPRESS:COMPRESS
: : :.tar.gz:/usr/bin/tar -c -z -f - %s:T_REG|T_DIR:O_COMPRESS|O_TAR:TAR+COMPRESS
would do the trick! (Usually kept in /usr/local/etc)
Of course, this assumes tar is a GNU tar (tar could be gtar or whatever in the
ftpconversions file if it has another name)
Mostyn
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