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|
#!/bin/sh
#
# mkjigsnap
#
# (c) 2004 Steve McIntyre
#
# Server-side wrapper; run this on a machine with a mirror to set up
# the snapshots for jigit
#
# GPL v2 - see COPYING
#
# Some things needed:
# location of the mirror
# the keyword to look for (e.g. Debian)
# the snapshot dirname (e.g. today's date)
# the jigdo files
# Example:
# ./mkjigsnap -m /tmp/mirror \
# -k Debian -k Non-US \
# -d 20041017 \
# jigdo1 jigdo2 jigdo3 ...
STARTDATE=`date`
while [ $# -gt 0 ]
do
case "$1"x in
"-m"x)
shift
MIRROR=$1
shift
;;
"-d"x)
shift
DIRNAME=$1
shift
;;
"-j"x)
shift
JIGDOLIST=$1
shift
;;
"-t"x)
shift
TF_TMPDIR="--directory $1"
SORT_TMPDIR="-T $1"
shift
;;
*)
JIGDOS="$JIGDOS $1"
shift
;;
esac
done
if [ "$MIRROR"x = ""x ] ; then
echo "You must specify the location of the mirror!"
exit 1
fi
if [ "$DIRNAME"x = ""x ] ; then
echo "You must specify the snapshot directory name!"
exit 1
fi
if [ "$JIGDOS"x = ""x ] ; then
if [ "$JIGDOLIST"x = ""x ] ; then
echo "You must specify some jigdo files!"
exit 1
fi
fi
TMPFILE=`tempfile $TF_TMPDIR`
if [ "$JIGDOLIST"x != ""x ] ; then
for JIGDO in `cat $JIGDOLIST`
do
zcat -f $JIGDO | sed -n "s/^.*Debian://gp" >> $TMPFILE
done
fi
if [ "$JIGDOS"x != ""x ] ; then
zcat -f $JIGDOS | sed -n "s/^.*Debian://gp" >> $TMPFILE
fi
LISTDONEDATE=`date`
TMPFILE1=`tempfile $TF_TMPDIR`
TOTAL_FILES=`wc -l < $TMPFILE`
cat $TMPFILE | sort -u $SORT_TMPDIR > $TMPFILE1
SORTDONEDATE=`date`
NUM_FILES=`wc -l < $TMPFILE1`
mv -f $TMPFILE1 $TMPFILE
NUM=`cat $TMPFILE | wc -l`
LINKS_DONE=0
(echo $NUM; echo $MIRROR; echo $DIRNAME; cat $TMPFILE ) | perl -we '
use File::Basename;
use File::Find;
my $num;
my $mirrorpath;
my $outdir;
my $dirname;
my $filename;
my $done = 0;
my $failed = 0;
my @file_list;
my $old_deleted = 0;
my $link;
$| = 1;
# Make a dir tree
sub mkdirs {
my $input = shift;
my $dir;
my @components;
my $need_slash = 0;
if (! -d $input) {
@components = split /\//,$input;
foreach $component (@components) {
if ($need_slash) {
$dir = join ("/", $dir, $component);
} else {
$dir = $component;
$need_slash = 1;
}
if (! -d $dir) {
mkdir $dir;
}
}
}
}
sub delete_redundant {
my $ref;
if (-f) {
$ref = $file_list{$File::Find::name};
if (!defined($ref)) {
unlink($File::Find::name);
$old_deleted++;
if ( !($old_deleted % 1000) ) {
print "$old_deleted\n";
}
}
}
}
while (<>) {
chomp;
if (!defined($num)) {
$num = $_;
next;
}
if (!defined($mirrorpath)) {
$mirrorpath = $_;
next;
}
if (!defined($outdir)) {
$outdir = $_;
print "Linking $num files from $mirrorpath to $outdir\n";
next;
}
$outfile = $outdir . "/" . $_;
$file_list{$outfile}++;
if (! -e $outfile) {
$dirname = dirname($_);
$filename = basename($_);
mkdirs($outdir . "/" . $dirname);
my $link_ok = 0;
foreach $mirror (split /:/,$mirrorpath) {
$infile = $mirror . "/" . $_;
if (-l $infile) {
$link = readlink($infile);
if ($link =~ m#^/#) {
$infile = $link;
} else {
$infile = dirname($infile) . "/" . $link;
}
}
$outfile = $outdir . "/" . $_;
if (link ($infile, $outfile)) {
$link_ok = 1;
last;
}
$infile = $mirror . "/" . $filename;
# print "Falling back to $infile\n";
if (link ($infile, $outfile)) {
$link_ok = 1;
last;
}
}
if ($link_ok == 0) {
print "\nFailed to create link $outfile\n";
$failed++;
}
}
$done++;
if ( !($done % 1000) ) {
print "$done/$num\n";
}
}
print " Finished: $done/$num, $failed failed\n\n";
# Now walk the tree and delete files that we no longer need
print "Scanning for now-redundant files\n";
find(\&delete_redundant, $outdir);
print " Finished: $old_deleted old files removed\n";
'
rm -f $TMPFILE
echo
echo "$STARTDATE: startup"
echo "$LISTDONEDATE: $TOTAL_FILES found"
echo "$SORTDONEDATE: $NUM_FILES after sorting"
echo `date`": mkjigsnap finished successfully"
|
