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#!/bin/bash
# sbodl, download slackbuilds.org source files
# 20191222 bkw: handle broken symlinks in current dir.
# change default cache dir.
# 20170306 bkw: add caching
SELF=$( basename $0 )
CACHEDIR=~/sbodl-cache
usage() {
cat <<EOF
$SELF - download the sources for a slackbuilds.org build.
version 20191222, public release, with cachedir
(c) 2014 B. Watson (yalhcru at gmail dawt cawm)
Licensed under the WTFPL: Do WTF you want with this.
Usage: $SELF [-f] <wget-options>
Execute $SELF in the directory that contains the .info and .SlackBuild
files. It will use wget to download the source file(s), then check their
md5sums.
$SELF options:
-h, --help: Show this help message.
-f: Ignore locally cached files, always download.
Any other options you pass to it will be passed to wget.
EOF
exit 0
}
die() {
echo "$SELF: $*" 2>&1
exit 1
}
[ -d "$CACHEDIR/" ] || mkdir -p $CACHEDIR || die "Can't create $CACHEDIR"
# check for our one argument
case "$1" in
-h|-help|-\?|--help) usage ;;
-f) FORCEDL="yes" ; shift ;;
esac
source ./$( basename $( pwd ) ).info \
|| die "No .info file, are you sure this is a SBo directory? Try '$SELF --help'"
# This stanza copied from the SBo template for 14.1:
if [ -z "$ARCH" ]; then
case "$( uname -m )" in
i?86) ARCH=i586 ;;
arm*) ARCH=arm ;;
*) ARCH=$( uname -m ) ;;
esac
fi
if [ "$ARCH" = "x86_64" ]; then
DL=${DOWNLOAD_x86_64:-$DOWNLOAD}
SUM=${MD5SUM_x86_64:-$MD5SUM}
else
DL=$DOWNLOAD
SUM=${MD5SUM}
fi
if [ -z "$DL" ]; then
die "Bad .info file (no DOWNLOAD= or DOWNLOAD_x86_64=)."
fi
# save passed-in command line args for use with wget
WGETARGS="$@"
set $SUM
for dl in $DL; do
EXTRAWGETARGS="--content-disposition "
case "$dl" in
*sourceforge.net/*|*.sf.net/*) EXTRAWGETARGS="--user-agent wget" ;;
*) ;;
esac
FILE=$( echo "$dl" | sed 's,.*/,,' )
# ignore (rm) broken symlinks
[ -L "$FILE" ] && ! [ -e "$FILE" ] && FORCEDL=yes
[ "$FORCEDL" = "yes" ] && rm -f "$FILE"
if [ -e "$FILE" ]; then
# don't do anything
:
elif [ "$FORCEDL" != "yes" ] && [ -e "$CACHEDIR/$FILE" ]; then
ln -s "$CACHEDIR/$FILE" "$FILE"
else
wget $WGETARGS $EXTRAWGETARGS "$dl" || die "Download failed"
if [ -e "$FILE" ]; then
mv -b "$FILE" "$CACHEDIR"
ln -s "$CACHEDIR/$FILE" "$FILE"
fi
fi
if [ -e "$FILE" ]; then
GOTSUM="$( md5sum "$FILE" | cut -d' ' -f1 )"
if [ "$1" != "$GOTSUM" ]; then
echo "WARN: md5sum doesn't match, expected $1, got $GOTSUM"
else
echo "md5sum matches OK: $1"
fi
else
echo "WARN: can't find downloaded file $FILE"
fi
shift
done
|
