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PC World 2000 February
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PCWorld_2000-02_cd.bin
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usr
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lib
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dpkg
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methods
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multicd
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install
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1999-02-08
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8KB
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283 lines
#!/bin/sh
set -e
vardir="$1"
method=$2
option=$3
cd "$vardir/methods/$method"
. ./shvar.$option
#debug() { echo "DEBUG: $@"; }
debug() { true; }
iarch=`dpkg --print-installation-architecture`
ismulti() { test -e "$1/.disk/info" || test -e "$1$2/.disk/info"; }
getdisklabel () {
debug "$1" "$2"
if [ -f $1/.disk/info ]
then
echo -n `head -1 "$1/.disk/info"`
else
echo -n `head -1 "$1$2/.disk/info"`
fi
}
xit=1
do_umount() {
if [ "$method" = "multi_mount" ]
then
echo /bin/true
return
fi
if [ -n "$umount" ]; then
echo umount "$umount"
#">/dev/null" "2>&1"
fi
}
do_mount() {
if [ "$method" = "multi_mount" ]
then
echo /bin/true
return
fi
if [ ! -b "$p_blockdev" ]
then
loop=",loop"
fi
if [ -n "$p_blockdev" ]
then
umount="$p_mountpoint"
echo mount -rt "$p_fstype" -o nosuid,nodev${loop} "$p_blockdev" "$p_mountpoint"\; umount="$p_mountpoint"
fi
if [ -n "$p_nfs" ]
then
umount="$p_mountpoint"
echo mount -rt nfs "$p_nfs" -o nosuid,nodev "$p_mountpoint"\; umount="$p_mountpoint"
fi
#if [ -n "$p_multi" -a -n "$p_multi_contentsfile" ]; then
#echo "This is disk "`getdisklabel "${p_mountpoint}" "${p_hierbase}"`
#fi
}
trap 'eval `do_umount`; exit $xit' 0
eval `do_mount`
predep="$vardir/predep-package"
while true
do
thisdisk="`getdisklabel ${p_mountpoint} ${p_hierbase}`"
set +e
dpkg --predep-package >"$predep"
rc=$?
set -e
if test $rc = 1; then break; fi
test $rc = 0
perl -e '
($binaryprefix,$predep,$thisdisk) = @ARGV;
$binaryprefix =~ s,/*$,/, if length($binaryprefix);
open(P,"< $predep") || die "cannot open $predep: $!\n";
while (<P>) {
s/\s*\n$//;
$package= $_ if s/^Package: //i;
/^X-Medium:\s+(.*)\s*/ and $medium = $1;
@filename= split(/ /,$_) if s/^Filename: //i;
@msdosfilename= split(/ /,$_) if s/^MSDOS-Filename: //i;
}
length($package) || die "internal error - no package";
@filename || die "internal error - no filename";
@filename==@msdosfilename || !@filename || !@msdosfilename ||
die "internal error - mismatch >@filename< >@msdosfilename<";
if ($medium && ($medium ne $thisdisk)) {
print "
This is $thisdisk, but $package is expected on disk: $medium.
Please change the disks and try again
";
exit(1);
}
@invoke=(); $|=1;
for ($i=0; $i<=$#filename; $i++) {
$ppart= $i+1;
print "Looking for part $ppart of $package ... ";
if (-f "$binaryprefix$filename[$i]") {
$print= $filename[$i];
$invoke= "$binaryprefix$filename[$i]";
} elsif (-f "$binaryprefix$msdosfilename[$i]") {
$print= $msdosfilename[$i];
$invoke= "$binaryprefix$msdosfilename[$i]";
} else {
$base= $filename[$i]; $base =~ s,.*/,,;
$msdosbase= $msdosfilename[$i]; $msdosbase =~ s,.*/,,;
defined($c= open(X,"-|")) ||
die "failed to fork for find: $!\n";
if (!$c) {
exec("find", length($binaryprefix)
? $binaryprefix : ".","-follow",
"-name",$base,"-o","-name",$msdosbase);
die "failed to exec find: $!\n";
}
while (chop($invoke= <X>)) { last if -f $invoke; }
$print= $invoke;
if (substr($print,0,length($binaryprefix)+1) eq
"$binaryprefix/") {
$print= substr($print,length($binaryprefix));
}
}
if (!length($invoke)) {
print STDERR "
Oh dear, I need to install or upgrade $package, but I don'\''t see
the appropriate file(s) anywhere. I'\''m expecting version $version or
later, as that is listed in the Packages.cd file.
Perhaps you downloaded it with an unexpected name, or something.
In any case, you must find the file(s) and then either place it with
the correct filename(s) (as listed in the Packages.cd file or in
/var/lib/dpkg/available) and rerun the installation, or upgrade the
package by using `dpkg --install --auto-deconfigure'\'' by hand.
";
exit(1);
}
print "$print\n";
push(@invoke,$invoke);
}
print "Running dpkg -iB for $package ...\n";
exec("dpkg","-iB","--",@invoke);
die "failed to exec dpkg: $!\n";
' -- "$p_mountpoint$p_main_binary" "$predep" "$thisdisk"
done
perl -e '
$SIG{INT} = sub { cd $vardir; unlink <tmp/*>; exit 1; };
$| = 1;
my ($vardir, $mountpoint, $hierbase, $mount, $umount) = @ARGV;
my $line;
my $AVAIL = "$vardir/methods/multicd/available";
my $STATUS = "$vardir/status";
my %Installed, %Filename, %Medium;
print "Get currently installed package versions...";
open(IN, "$STATUS") or die "Cannot open $STATUS: $!\n";
$line = 0;
{ local $/ = "";
while (<IN>) {
my %status;
my @pstat;
$line++ % 20 or print ".";
s/\n\s+/ /g;
%status = ("", split /^(\S*?):\s*/m, $_);
map { chomp $status{$_}; $status{$_} =~ s/^\s*(.*?)\s*$/$1/;} keys %status;
@pstat = split(/ /, $status{Status});
next unless ($pstat[0] eq "install");
if ($pstat[2] eq "config-files" || $pstat[2] eq "not-installed") {
$Installed{$status{Package}} = "0.0";
} else {
$Installed{$status{Package}} = $status{Version} || "" ;
}
}; }
print "\nGot ", scalar keys %Installed, " installed/pending packages\n";
print "Scanning available packages...";
$line = 0;
open(IN, "$AVAIL") or die("Cannot open $AVAIL: $!\n");
{ local $/ = "";
while (<IN>) {
my $updated;
$line++ % 20 or print ".";
s/\n\s+/ /g;
%avail = ("", split /^(\S*?):\s*/m, $_);
map { chomp $avail{$_}; $avail{$_} =~ s/^\s*(.*?)\s*$/$1/;} keys %avail;
next unless defined $Installed{$avail{Package}};
system "dpkg", "--compare-versions", $avail{Version}, "gt", $Installed{$avail{Package}};
$updated = ($? == 0);
#print "$avail{Package}(" . ($updated ? "+" : "=") . ") ";
$updated or next;
$Filename{$avail{Package}} = $avail{Filename};
next unless defined $avail{"X-Medium"};
${Medium{$avail{"X-Medium"}}} or ${Medium{$avail{"X-Medium"}}} = [];
push @{${Medium{$avail{"X-Medium"}}}}, $avail{Package};
}; };
print "\n";
if (@_ = keys(%Medium)) {
print "You will need the following distribution medium(s):\n",
join (", ", @_), "\n";
}
foreach $need (sort @_) {
if (-r "$mountpoint/.disk/info") {
open(IN, "$mountpoint/.disk/info") or die("$mountpoint/.disk/info: $!\n");
} else {
open(IN, "$mountpoint/$hierbase/.disk/info") or die("$mountpoint/$hierbase/.disk/info: $!\n");
}
$disk = <IN>; chomp $disk; close(IN);
print "Processing $need...";
while ($disk ne $need) {
print "\nWrong disk. I need \"$need\", but I found \"$disk\".\n",
"Please change the disks and press <RETURN>\n";
system($umount);
<STDIN>;
system($mount); $? and warn("Cannot mount $mount\n");
} continue {
if (-r "$mountpoint/.disk/info") {
open(IN, "$mountpoint/.disk/info") or die("$mountpoint/.disk/info: $!\n");
} else {
open(IN, "$mountpoint/$hierbase/.disk/info") or die("$mountpoint/$hierbase/.disk/info: $!\n");
}
$disk = <IN>; chomp $disk; close(IN);
}
-d "tmp" || mkdir "tmp", 0755 or die("Cannot mkdir tmp: $!\n");
unlink <tmp/*>;
print "creating symlinks...\n";
foreach (@{$Medium{$need}}) {
($basename = $Filename{$_}) =~ s/.*\///;
symlink "$mountpoint/$hierbase/$Filename{$_}",
"tmp/$basename";
}
chdir "tmp" or die "Cannot chdir to tmp: $!\n";
system "dpkg", "-iGROEB", ".";
unlink <*>;
chdir "..";
if ($?) {
print "\nThe dpkg run produced errors. Please tell me, if I should\n",
"continue with the next CD. [Y/n]: ";
$ans = <STDIN>;
exit 1 if $ans =~ /^n/i;
$ouch = $?;
}
}
exit $ouch;
' "$vardir" "$p_mountpoint" "$p_hierbase" "`do_mount`" "`do_umount`"
echo -n 'Installation OK. Hit RETURN. '
read response
xit=0
# vim:ts=4:sw=4:aw:ai: