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Message-ID:	<4421950A.8010000@newparticles.com>
Date:	Wed, 22 Mar 2006 11:18:50 -0700
From:	Lance Nehring <nehring AT newparticles DOT com>
User-Agent:	Thunderbird 1.5 (Windows/20051201)
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To:	cygwin AT cygwin DOT com
Subject:	modification to mkcygwget to overcome arg length limitation
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Hi all,
I tried to use the mkcygwget script to download a cygwin mirror for 
offline installation.  The mkcygwget script generates a script named 
cygwget to do the heavy lifting of retreiving files.   However, I got a 
"argument list too long" exception from wget, since the generated script 
has all the files to be downloaded appended to a single wget command.

I've made a slight modification to the mkcygwget script so that the 
generated cygwget contains a separate wget command for each file to be 
downloaded.   This solved the problem I was having....thought I'd post 
the modified script to this mailing list in case anyone else was interested.
r,
Lance Nehring
New Particles Corp
http://www.newparticles.com/


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 filename="mkcygwget"

#!/bin/bash


getBZ2=1


# Validate usage (minimally)
if [ $# -ne 1 ]; then
	echo "mkcygwget: Usage $0 <mirrorURL>" >&2
	exit 1
fi

mirrorURL="$1"


# Dissect the argument to separate the host and directory portions
mirrorHost="${mirrorURL%*/}"
mirrorDir="${mirrorURL##*/}"

ueMirror="$(echo "$mirrorURL" |sed -e 's/:/%3a/g' -e 's|/|%2f|g')"

mkdir "$ueMirror"


# Retrieve the "setup.ini" file from the mirror

# Get the BZip2-compressed form?
if [ "$getBZ2" ]; then
	wget -O "$ueMirror/setup.bz2" "$mirrorHost/setup.bz2"

	if [ $? -ne 0 ]; then
		echo "mkwget: Error retrieving \"setup.bz2\" from \"$mirrorHost/setup.bz2\"" >&2
		exit 1;
	fi

	bzcat "$ueMirror/setup.bz2" >"$ueMirror/setup.ini"
	rm "$ueMirror/setup.bz2"

# Get the uncompressed "setup.ini" file
else
	wget -O "$ueMirror/setup.ini" "$mirrorHost/setup.ini"

	if [ $? -ne 0 ]; then
		echo "mkwget: Error retrieving \"setup.ini\" from \"$mirrorHost/setup.ini\"" >&2
		exit 1;
	fi

fi


# Use the "setup.ini" file to produce a download script
wgetprefix="wget -x -nH --cut-dirs=1 $mirrorURL"
(
	echo -e '#!/bin/sh\n'

	echo -e "cd \"$ueMirror\"\n"

	sed -n -e "/^install: / s|^install: \([^ ]*\) .*|\t$wgetprefix/\1 |p" "$ueMirror/setup.ini"

	echo
) >|cygwget

chmod +x cygwget

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