po/create_placeholder


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#!/bin/sh

echo -e "\
/* this is a placeholder so that xgettext can find the translatable
 * strings. This file is automatically generated, look at
 * ./create_placeholder
 */
char *foobar[] = {
/* This is a list of chars acceptable as a 'yes' answer to a Yes/No question;
   you can put here the letters for 'yes' for your language, so people 
   can hit those keys in their keyboard to reply.
   please keep the 'Yy' for compatibility reasons
 */
	N_(\"Yy\"),
/* This is a list of chars acceptable as a 'no' answer to a Yes/No question;
   you can put here the letters for 'no' for your language, so people 
   can hit those keys in their keyboard to reply.
   please keep the 'Nn' for compatibility reasons
 */
	N_(\"Nn\"), " > placeholder.h.$$

echo "};" >> placeholder.h.$$

# diff returns true if files are equal
if ! diff placeholder.h.$$ placeholder.h > /dev/null 2> /dev/null
then
	cat placeholder.h.$$ > placeholder.h
fi
rm -f placeholder.h.$$
package fs;

use diagnostics;
use strict;

use common qw(:common :file :system :functional);
use log;
use devices;
use partition_table qw(:types);
use run_program;
use nfs;
use swap;
use detect_devices;
use commands;
use modules;
use raid;
use loopback;

1;

sub add_options(\$@) {
    my ($option, @options) = @_;
    my %l; @l{split(',', $$option), @options} = (); delete $l{defaults};
    $$option = join(',', keys %l) || "defaults";
}

sub read_fstab($) {
    my ($file) = @_;

    local *F;
    open F, $file or return;

    map {
	my ($dev, @l) = split;
	$dev =~ s,/(tmp|dev)/,,;
	{ device => $dev, mntpoint => $l[0], type => $l[1], options => $l[2] }
    } <F>;
}

sub up_mount_point {
    my ($mntpoint, $fstab) = @_;
    while (1) {
	$mntpoint = dirname($mntpoint);
	$mntpoint ne "." or return;
	$_->{mntpoint} eq $mntpoint and return $_ foreach @$fstab;
    }
}

sub check_mounted($) {
    my ($fstab) = @_;

    local (*F, *G, *H);
    open F, "/etc/mtab";
    open G, "/proc/mounts";
    open H, "/proc/swaps";
    foreach (<F>, <G>, <H>) {
	foreach my $p (@$fstab) {
	    /$p->{device}\s+([^\s]*)\s+/ and $p->{realMntpoint} = $1, $p->{isMounted} = $p->{isFormatted} = 1;
	}
    }
}

sub get_mntpoints_from_fstab($) {
    my ($fstab) = @_;

    foreach (read_fstab('/etc/fstab')) {
	foreach my $p (@$fstab) {
	    $p->{device} eq $_->{device} or next;
	    $p->{mntpoint} ||= $_->{mntpoint};
	    $p->{options} ||= $_->{options};
	    $_->{type} ne 'auto' && $_->{type} ne type2fs($p->{type}) and
		log::l("err, fstab and partition table do not agree for $_->{device} type: " . (type2fs($p->{type}) || type2name($p->{type})) . " vs $_->{type}");
	}
    }
}

#- mke2fs -b (1024|2048|4096) -c -i(1024 > 262144) -N (1 > 100000000) -m (0-100%) -L volume-label
#- tune2fs
sub format_ext2($@) {
    my ($dev, @options) = @_;

    $dev =~ m,(rd|ida)/, and push @options, qw(-b 4096 -R stride=16); #- For RAID only.
    push @options, qw(-b 1024 -O none) if arch() =~ /alpha/;

    run_program::run("mke2fs", @options, devices::make($dev)) or die _("%s formatting of %s failed", "ext2", $dev);
}

sub format_reiserfs($@) {
    my ($dev, @options) = @_;

    run_program::run("mkreiserfs", "-f", @options, devices::make($dev)) or die _("%s formatting of %s failed", "reiserfs", $dev);
}

sub format_dos($@) {
    my ($dev, @options) = @_;

    run_program::run("mkdosfs", @options, devices::make($dev)) or die _("%s formatting of %s failed", "dos", $dev);
}

sub format_hfs($@) {
    my ($dev, @options) = @_;

    run_program::run("hformat", @options, devices::make($dev)) or die _("%s formatting of %s failed", "HFS", $dev);
}

sub real_format_part {
    my ($part) = @_;

    $part->{isFormatted} and return;

    my @options = $part->{toFormatCheck} ? "-c" : ();
    log::l("formatting device $part->{device} (type ", type2name($part->{type}), ")");

    if (isExt2($part)) {
	push @options, "-F" if isLoopback($part);
	format_ext2($part->{device}, @options);
    } elsif (isReiserfs($part)) {
        format_reiserfs($part->{device}, @options);
    } elsif (isDos($part)) {
        format_dos($part->{device}, @options);
    } elsif (isWin($part)) {
        format_dos($part->{device}, @options, '-F', 32);
    } elsif (isHFS($part)) {
        format_hfs($part->{device}, @options, '-l', "\"Untitled\"");
    } elsif (isSwap($part)) {
	my $check_blocks = grep { /^-c$/ } @options;
        swap::make($part->{device}, $check_blocks);
    } else {
	die _("I don't know how to format %s in type %s", $_->{device}, type2name($_->{type}));
    }
    $part->{isFormatted} = 1;
}
sub format_part {
    my ($raid, $part, $prefix) = @_;
    if (raid::is($part)) {
	raid::format_part($raid, $part);
    } elsif (isLoopback($part)) {
	loopback::format_part($part, $prefix);
    } else {
	real_format_part($part);
    }
}

sub formatMount_part {
    my ($part, $raid, $fstab, $prefix, $callback) = @_;

    if (isLoopback($part)) {
	formatMount_part($part->{device}, $raid, $fstab, $prefix, $callback);
    }
    if (my $p = up_mount_point($part->{mntpoint}, $fstab)) {
	formatMount_part($p, $raid, $fstab, $prefix, $callback) unless loopback::carryRootLoopback($part);
    }

    if ($part->{toFormat}) {
	$callback->($part) if $callback;
	format_part($raid, $part, $prefix);
    }
    mount_part($part, $prefix);
}

sub formatMount_all {
    my ($raid, $fstab, $prefix, $callback) = @_;
    formatMount_part($_, $raid, $fstab, $prefix, $callback) 
      foreach sort { isLoopback($a) ? 1 : -1 } grep { $_->{mntpoint} } @$fstab;

    #- ensure the link is there
    loopback::carryRootCreateSymlink($_, $prefix) foreach @$fstab;    
}

sub mount($$$;$) {
    my ($dev, $where, $fs, $rdonly) = @_;
    log::l("mounting $dev on $where as type $fs");

    -d $where or commands::mkdir_('-p', $where);

    if ($fs eq 'nfs') {
	log::l("calling nfs::mount($dev, $where)");
	nfs::mount($dev, $where) or die _("nfs mount failed");
    } elsif ($fs eq 'smb') {
	die "no smb yet...";
    } else {
	$dev = devices::make($dev) if $fs ne 'proc';

	my $flag = c::MS_MGC_VAL();
	$flag |= c::MS_RDONLY() if $rdonly;
	my $mount_opt = "";

	if ($fs eq 'vfat') {
	    $mount_opt = 'check=relaxed';
	    eval { modules::load('vfat') }; #- try using vfat
	    eval { modules::load('msdos') } if $@; #- otherwise msdos...
	} elsif ($fs eq 'reiserfs') {
	    #- could be better if we knew if there is a /boot or not
	    #- without knowing it, / is forced to be mounted with notail
	    $mount_opt = 'notail' if $where =~ m|/(boot)?$|;
	    eval { modules::load('reiserfs') };
	}

	log::l("calling mount($dev, $where, $fs, $flag, $mount_opt)");
	syscall_('mount', $dev, $where, $fs, $flag, $mount_opt) or die _("mount failed: ") . "$!";
    }
    local *F;
    open F, ">>/etc/mtab" or return; #- fail silently, must be read-only /etc
    print F "$dev $where $fs defaults 0 0\n";
}

#- takes the mount point to umount (can also be the device)
sub umount($) {
    my ($mntpoint) = @_;
    log::l("calling umount($mntpoint)");
    syscall_('umount', $mntpoint) or die _("error unmounting %s: %s", $mntpoint, "$!");

    my @mtab = cat_('/etc/mtab'); #- don't care about error, if we can't read, we won't manage to write... (and mess mtab)
    local *F;
    open F, ">/etc/mtab" or return;
    foreach (@mtab) { print F $_ unless /(^|\s)$mntpoint\s/; }
}

sub mount_part($;$$) {
    my ($part, $prefix, $rdonly) = @_;

    #- root carrier's link can't be mounted
    loopback::carryRootCreateSymlink($part, $prefix);