drakx - Mageia Installer and base platform for many utilities

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author	Olivier Blin <oblin@mandriva.com>	2008-08-18 12:24:56 +0000
committer	Olivier Blin <oblin@mandriva.com>	2008-08-18 12:24:56 +0000
commit	180f8ebe3edf2d7f5808265fc30bc70db045a19e (patch)
tree	d5a0ef5319cf78f2987af728f9549737887d97d7
parent	37f388f0b64fda53c6b77c2e52a2669da1718e89 (diff)
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do not reload urpmi media every time are_available is called

Diffstat

-rw-r--r--

perl-install/NEWS

-rw-r--r--

perl-install/do_pkgs.pm

2 files changed, 13 insertions, 7 deletions

#-######################################################################## #- This file implement many common shell commands: #- true, false, cat, which, dirname, basename, rmdir, lsmod, grep, tr, #- mount, umount, mkdir, mknod, ln, rm, chmod, chown, mkswap, swapon, #- swapoff, ls, cp, ps, dd, head, tail, strings, hexdump, more, insmod, #- modprobe, route, df, kill, lspci, lssbus, dmesg, sort, du, #-######################################################################## package commands; use diagnostics; use strict; use vars qw($printable_chars); #-###################################################################################### #- misc imports #-###################################################################################### use common qw(:common :file :system :constant); #-##################################################################################### #- Globals #-##################################################################################### my $BUFFER_SIZE = 1024; #-###################################################################################### #- Functions #-###################################################################################### sub getopts { my $o = shift; my @r = map { '' } (@_ = split //, $_[0]); while (1) { local $_ = $o->[0]; $_ && /^-/ or return @r; for (my $i = 0; $i < @_; $i++) { /$_[$i]/ and $r[$i] = $_[$i]; } shift @$o; } @r; } sub true { exit 0 } sub false { exit 1 } sub cat { @ARGV = @_; print while <> } sub which { ARG: foreach (@_) { foreach my $c (split /:/, $ENV{PATH}) { -x "$c/$_" and print("$c/$_\n"), next ARG; }}} sub dirname_ { print dirname(@_), "\n" } sub basename_ { print basename(@_), "\n" } sub rmdir_ { foreach (@_) { rmdir $_ or die "rmdir: can't remove $_\n" } } sub lsmod { print "Module Size Used by\n"; cat("/proc/modules"); } sub grep_ { my ($h, $v, $i) = getopts(\@_, qw(hvi)); @_ == 0 || $h and die "usage: grep <regexp> [files...]\n"; my $r = shift; $r = qr/$r/i if $i; @ARGV = @_; (/$r/ ? $v || print : $v && print) while <> } sub tr_ { my ($s, $c, $d) = getopts(\@_, qw(s c d)); @_ >= 1 + (!$d || $s) or die "usage: tr [-c] [-s [-d]] <set1> <set2> [files...]\n or tr [-c] -d <set1> [files...]\n"; my $set1 = shift; my $set2; !$d || $s and $set2 = shift; @ARGV = @_; eval "(tr/$set1/$set2/$s$d$c, print) while <>"; } sub mount { @_ or return cat("/proc/mounts"); my ($t, $r) = getopts(\@_, qw(tr)); my $fs = $t && shift; @_ == 2 or die "usage: mount [-r] [-t <fs>] <device> <dir>\n", " (use -r for readonly)\n", " (if /dev/ is left off the device name, a temporary node will be created)\n"; my ($dev, $where) = @_; $fs ||= $where =~ /:/ ? "nfs" : $dev =~ /fd/ ? "vfat" : "ext2"; require fs; require modules; modules::load_deps("/modules/modules.dep"); fs::mount($dev, $where, $fs, $r); } sub umount { @_ == 1 or die "umount expects a single argument\n"; require fs; fs::umount($_[0]); } sub mkdir_ { my ($rec) = getopts(\@_, qw(p)); my $mkdir; $mkdir = sub { my $root = dirname $_[0]; if (-e $root) { -d $root or die "mkdir: error creating directory $_[0]: $root is a file and i won't delete it\n"; } else { $rec or die "mkdir: $root does not exist (try option -p)\n"; &$mkdir($root); } $rec and -d $_[0] and return; mkdir $_[0], 0755 or die "mkdir: error creating directory $_: $!\n"; }; &$mkdir($_) foreach @_; } sub mknod { if (@_ == 1) { require devices; eval { devices::make($_[0]) }; $@ and die "mknod: failed to create $_[0]\n"; } elsif (@_ == 4) { require c; my $mode = $ {{"b" => c::S_IFBLK(), "c" => c::S_IFCHR()}}{$_[1]} or die "unknown node type $_[1]\n"; syscall_('mknod', my $a = $_[0], $mode | 0600, makedev($_[2], $_[3])) or die "mknod failed: $!\n"; } else { die "usage: mknod <path> [b|c] <major> <minor> or mknod <path>\n"; } } sub ln { my ($force, $soft) = getopts(\@_, qw(fs)); @_ >= 1 or die "usage: ln [-s] [-f] <source> [<dest>]\n"; my ($source, $dest) = @_; $dest ||= basename($source); $force and unlink $dest; ($soft ? symlink($source, $dest) : link($source, $dest)) or die "ln failed: $!\n"; } sub rm { my ($rec, undef) = getopts(\@_, qw(rf)); my $rm; $rm = sub { foreach (@_) { if (!-l $_ && -d $_) { $rec or die "$_ is a directory\n"; &$rm(glob_($_)); rmdir $_ or die "can't remove directory $_: $!\n"; } else { unlink $_ or die "rm of $_ failed: $!\n" } } }; &$rm(@_); } sub chmod_ { @_ >= 2 or die "usage: chmod <mode> <files>\n"; my $mode = shift; $mode =~ /^[0-7]+$/ or die "illegal mode $mode\n"; foreach (@_) { chmod oct($mode), $_ or die "chmod failed $_: $!\n" } } sub chown_ { my ($rec, undef) = getopts(\@_, qw(r)); local $_ = shift or die "usage: chown [-r] name[.group] <files>\n"; my ($name, $group) = (split('\.'), $_); my ($uid, $gid) = (getpwnam($name) || $name, getgrnam($group) || $group); my $chown; $chown = sub { foreach (@_) { chown $uid, $gid, $_ or die "chown of file $_ failed: $!\n"; -d $_ && $rec and &$chown(glob_($_)); } }; &$chown(@_); } sub mkswap { @_ == 1 or die "mkswap <device>\n"; require swap; swap::enable($_[0], 0); } sub swapon { @_ == 1 or die "swapon <file>\n"; require swap; swap::swapon($_[0]); } sub swapoff { @_ == 1 or die "swapoff <file>\n"; require swap; swap::swapoff($_[0]); } sub uncpio { @_ and die "uncpio reads from stdin\n"; # cpioInstallArchive(gzdopen(0, "r"), NULL, 0, NULL, NULL, &fail); } sub rights { my $r = '-' x 9; my @rights = (qw(x w r x w r x w r), ['t', 0], ['s', 3], ['s', 6]); for (my $i = 0; $i < @rights; $i++) { if (vec(pack("S", $_[0]), $i, 1)) { my ($val, $place) = $i >= 9 ? @{$rights[$i]} : ($rights[$i], $i); my $old = \substr($r, 8 - $place, 1); $$old = ($$old eq '-' && $i >= 9) ? uc $val : $val; } } my @types = split //, "_pc_d_b_-_l_s"; $types[$_[0] >> 12 & 0xf] . $r; } sub displaySize { my $m = $_[0] >> 12; $m == 4 || $m == 8 || $m == 10; } sub ls { my ($l , $h) = getopts(\@_, qw(lh)); $h and die "usage: ls [-l] <files...>\n"; @_ or @_ = '.'; @_ == 1 && -d $_[0] and @_ = glob_($_[0]); foreach (sort @_) { if ($l) { my @s = lstat or warn("can't stat file $_\n"), next; formline( "@<<<<<<<<< @<<<<<<< @<<<<<<< @>>>>>>>> @>>>>>>>>>>>>>>> @*\n", rights($s[2]), getpwuid $s[4] || $s[4], getgrgid $s[5] || $s[5], displaySize($s[2]) ? $s[7] : join(", ", unmakedev($s[6])), scalar localtime $s[9], -l $_ ? "$_ -> " . readlink $_ : $_); print $^A; $^A = ''; } else { print "$_\n"; } } } sub cp { my ($force) = getopts(\@_, qw(f)); @_ >= 2 or die "usage: cp [-f] <sources> <dest>\n(this cp does -Rl by default)\n"; my $cp; $cp = sub { my $dest = pop @_; @_ or return; @_ == 1 || -d $dest or die "cp: copying multiple files, but last argument ($dest) is not a directory\n"; foreach my $src (@_) { my $dest = $dest; -d $dest and $dest .= "/" . basename($src); if (-e $dest) { $force ? unlink $dest : die "file $dest already exist\n"; } if (-d $src) { -d $dest or mkdir $dest, mode($src) or die "mkdir: can't create directory $dest: $!\n"; &$cp(glob_($src), $dest); } elsif (-l $src) { unless (symlink((readlink($src) || die "readlink failed: $!"), $dest)) { my $msg = "symlink: can't create symlink $dest: $!\n"; $force ? warn $msg : die $msg; } } else { local (*F, *G); open F, $src or die "can't open $src for reading: $!\n"; open G, "> $dest" or $force or die "can't create $dest : $!\n"; foreach (<F>) { print G $_ } chmod mode($src), $dest; } } }; &$cp(@_); } sub ps { @_ and die "usage: ps\n"; my ($pid, $rss, $cpu, $cmd); my ($uptime) = split ' ', first(cat_("/proc/uptime")); my $hertz = 100; require c; my $page = c::getpagesize() / 1024; open PS, ">&STDOUT"; format PS_TOP = PID RSS %CPU CMD . format PS = @>>>> @>>>> @>>> @<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< $pid, $rss, $cpu, $cmd . foreach $pid (sort {$a <=> $b} grep { /\d+/ } all('/proc')) { my @l = split(' ', cat_("/proc/$pid/stat")); $cpu = sprintf "%2.1f", max(0, min(99, ($l[13] + $l[14]) * 100 / $hertz / ($uptime - $l[21] / $hertz))); $rss = (split ' ', cat_("/proc/$pid/stat"))[23] * $page; (($cmd) = cat_("/proc/$pid/cmdline")) =~ s/\0/ /g; $cmd ||= (split ' ', (cat_("/proc/$pid/stat"))[0])[1]; write PS; } } sub dd { my $u = "usage: dd [-h] [-p] [if=<file>] [of=<file>] [bs=<number>] [count=<number>]\n"; my ($help, $percent) = getopts(\@_, qw(hp)); die $u if $help; my %h = (if => *STDIN, of => *STDOUT, bs => 512, count => undef); foreach (@_) { /(.*?)=(.*)/ && exists $h{$1} or die $u; $h{$1} = $2; } local (*IF, *OF); my ($tmp, $nb, $read); ref $h{if} eq 'GLOB' ? *IF = $h{if} : sysopen(IF, $h{if}, 0 ) || die "error: can't open file $h{if}\n"; ref $h{of} eq 'GLOB' ? *OF = $h{of} : sysopen(OF, $h{of}, 0x41) || die "error: can't open file $h{of}\n"; $h{bs} = removeXiBSuffix($h{bs}); for ($nb = 0; !$h{count} || $nb < $h{count}; $nb++) { printf "\r%02.1d%%", 100 * $nb / $h{count} if $h{count} && $percent; $read = sysread(IF, $tmp, $h{bs}) or $h{count} ? die "error: can't read block $nb\n" : last; syswrite(OF, $tmp) or die "error: can't write block $nb\n"; $read < $h{bs} and $read = 1, last; } print STDERR "\r$nb+$read records in\n"; print STDERR "$nb+$read records out\n"; } sub head_tail { my ($h, $n) = getopts(\@_, qw(hn)); $h || @_ > 1 + bool($n) and die "usage: $0 [-h] [-n lines] [<file>]\n"; $n = $n ? shift : 10; local *F; @_ ? open(F, $_[0]) || die "error: can't open file $_[0]\n" : (*F = *STDIN); if ($0 eq 'head') { foreach (<F>) { $n-- or return; print } } else { @_ = (); foreach (<F>) { push @_, $_; @_ > $n and shift; } print @_; } } sub head { $0 = 'head'; &head_tail } sub tail { $0 = 'tail'; &head_tail } sub strings { my ($h, $o, $n) = getopts(\@_, qw(hon)); $h and die "usage: strings [-o] [-n min-length] [<files>]\n"; $n = $n ? shift : 4; $/ = "\0"; @ARGV = @_; my $l = 0; while (<>) { while (/[$printable_chars]{$n,}/og) { printf "%07d ", ($l + length $') if $o; print "$&\n" ; } $l += length; } continue { $l = 0 if eof } } sub hexdump { my $i = 0; $/ = \16; @ARGV = @_; while (<>) { printf "%08lX ", $i; $i += 16; print join(" ", (map { sprintf "%02X", $_ } unpack("C*", $_)), ($_ =~ s/[^$printable_chars]/./og, $_)[1]), "\n"; } } sub more { @ARGV = @_; require devices; my $tty = devices::make('tty'); local *IN; open IN, "<$tty" or die "can't open $tty\n"; my $n = 0; while (<>) { ++$n == 25 and $n = <IN>, $n = 0; print } } sub pack_ { my $t; foreach (@_) { if (-d $_) { pack_(glob_($_)); } else { print -s $_, "\n"; print $_, "\n"; local *F; open F, $_ or die "can't read file $_: $!\n"; while (read F, $t, $BUFFER_SIZE) { print $t; } } } } sub unpack_ { my $t; @_ == 1 or die "give me one and only one file to unpack\n"; local *F; open F, $_[0] or die "can't open file $_: $!\n"; while (1) { my ($size) = chop_(scalar <F>); defined $size or last; $size =~ /^\d+$/ or die "bad format (can't find file size)\n"; my ($filename) = chop_(scalar <F>) or die "expecting filename\n"; print "$filename\n"; my $dir = dirname($filename); -d $dir or mkdir_('-p', $dir); local *G; open G, "> $filename" or die "can't write file $filename: $!\n"; while ($size) { $size -= read(F, $t, min($size, $BUFFER_SIZE)) || die "data for file $filename is missing\n"; print G $t or die "error writing to file $filename: $!\n"; } } } sub insmod { my ($h) = getopts(\@_, qw(h)); $h || @_ == 0 and die "usage: insmod <module> [options]\n"; my $f = local $_ = shift; require run_program;


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