From f8d30c05a05c1c01b3f8a758c54f4af07d7b114e Mon Sep 17 00:00:00 2001
From: Pascal Rigaux <pixel@mandriva.com>
Date: Tue, 3 Aug 2004 05:41:59 +0000
Subject: many functions in fsedit don't modify anything, they are simply
 accessors. create fs::get and move them into it

- device2part(), up_mount_point() moved from fs to fs::get
- part2hd(), file2part(), has_mntpoint(), mntpoint2part(), empty_all_hds() moved from fsedit to fs::get
- fsedit::get_root() -> fs::get::root()
- fsedit::get_root_() -> fs::get::root_()

- fsedit::get_really_all_fstab() -> fs::get::really_all_fstab()
- fsedit::get_all_fstab_and_holes() -> fs::get::fstab_and_holes()
- fsedit::get_all_fstab() -> fs::get::fstab()
- fsedit::get_all_holes() -> fs::get::holes()
- fsedit::all_free_space -> fs::get::free_space()
- fsedit::get_really_all_fstab() -> fs::get::really_all_fstab()

- fsedit::get_fstab_and_holes() -> fs::get::hds_fstab_and_holes()
- fsedit::get_holes() -> fs::get::hds_holes()
- fsedit::get_fstab() -> fs::get::hds_fstab()
- fsedit::free_space() -> fs::get::hds_free_space()

- fsedit::get_visible_fstab() unused, removed
---
 perl-install/fs/get.pm | 128 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 128 insertions(+)
 create mode 100644 perl-install/fs/get.pm

(limited to 'perl-install/fs/get.pm')

diff --git a/perl-install/fs/get.pm b/perl-install/fs/get.pm
new file mode 100644
index 000000000..5b5b75077
--- /dev/null
+++ b/perl-install/fs/get.pm
@@ -0,0 +1,128 @@
+package fs::get; # $Id$
+
+use diagnostics;
+use strict;
+
+use partition_table;
+use fs::type;
+use fs;
+use common;
+use log;
+
+sub empty_all_hds() {
+    { hds => [], lvms => [], raids => [], loopbacks => [], raw_hds => [], nfss => [], smbs => [], davs => [], special => [] };
+}
+sub fstab {
+    my ($all_hds) = @_;
+    my @parts = map { partition_table::get_normal_parts($_) } hds($all_hds);
+    my @raids = grep { $_ } @{$all_hds->{raids}};
+    @parts, @raids, @{$all_hds->{loopbacks}};
+}
+sub really_all_fstab {
+    my ($all_hds) = @_;
+    my @l = fstab($all_hds);
+    @l, @{$all_hds->{raw_hds}}, @{$all_hds->{nfss}}, @{$all_hds->{smbs}}, @{$all_hds->{davs}};
+}
+
+sub fstab_and_holes {
+    my ($all_hds) = @_;
+    my @raids = grep { $_ } @{$all_hds->{raids}};
+    hds_fstab_and_holes(hds($all_hds)), @raids, @{$all_hds->{loopbacks}};
+}
+
+sub holes {
+    my ($all_hds) = @_;
+    grep { $_->{pt_type} == 0 } fstab_and_holes($all_hds);
+}
+sub hds_holes {
+    grep { $_->{pt_type} == 0 } hds_fstab_and_holes(@_);
+}
+sub free_space {
+    my ($all_hds) = @_;
+    sum map { $_->{size} } holes($all_hds);
+}
+sub hds_free_space {
+    sum map { $_->{size} } hds_holes(@_);
+}
+
+sub hds {
+    my ($all_hds) = @_;
+    (@{$all_hds->{hds}}, @{$all_hds->{lvms}});
+}
+
+#- get all normal partition including special ones as found on sparc.
+sub hds_fstab {
+    map { partition_table::get_normal_parts($_) } @_;
+}
+
+sub hds_fstab_and_holes {
+    map {
+	if (isLVM($_)) {
+	    my @parts = partition_table::get_normal_parts($_);
+	    my $free = $_->{totalsectors} - sum map { $_->{size} } @parts;
+	    my $free_part = { start => 0, size => $free, pt_type => 0, rootDevice => $_->{VG_name} };
+	    @parts, if_($free >= $_->cylinder_size, $free_part);
+	} else {
+	    partition_table::get_normal_parts_and_holes($_);
+	}
+    } @_;
+}
+
+
+sub device2part {
+    my ($dev, $fstab) = @_;
+    my $subpart = fs::subpart_from_wild_device_name($dev);
+    my $part = find { fsedit::is_same_hd($subpart, $_) } @$fstab;
+    log::l("fs::device2part: unknown device <<$dev>>") if !$part;
+    $part;
+}
+
+sub part2hd {
+    my ($part, $all_hds) = @_;
+    my $hd = find { $part->{rootDevice} eq ($_->{device} || $_->{VG_name}) } hds($all_hds);
+    $hd;
+}
+
+sub file2part {
+    my ($fstab, $file, $b_keep_simple_symlinks) = @_;    
+    my $part;
+
+    $file = $b_keep_simple_symlinks ? common::expand_symlinks_but_simple("$::prefix$file") : expand_symlinks("$::prefix$file");
+    unless ($file =~ s/^$::prefix//) {
+	my $part = find { loopback::carryRootLoopback($_) } @$fstab or die;
+	log::l("found $part->{mntpoint}");
+	$file =~ s|/initrd/loopfs|$part->{mntpoint}|;
+    }
+    foreach (@$fstab) {
+	my $m = $_->{mntpoint};
+	$part = $_ if 
+	  $file =~ /^\Q$m/ && 
+	    (!$part || length $part->{mntpoint} < length $m);
+    }
+    $part or die "file2part: not found $file";
+    $file =~ s|$part->{mntpoint}/?|/|;
+    ($part, $file);
+}
+
+sub mntpoint2part {
+    my ($mntpoint, $fstab) = @_;
+    find { $mntpoint eq $_->{mntpoint} } @$fstab;
+}
+sub has_mntpoint {
+    my ($mntpoint, $all_hds) = @_;
+    mntpoint2part($mntpoint, [ really_all_fstab($all_hds) ]);
+}
+sub root_ {
+    my ($fstab, $o_boot) = @_;
+    $o_boot && mntpoint2part("/boot", $fstab) || mntpoint2part("/", $fstab);
+}
+sub root { &root_ || {} }
+
+sub up_mount_point {
+    my ($mntpoint, $fstab) = @_;
+    while (1) {
+	$mntpoint = dirname($mntpoint);
+	$mntpoint ne "." or return;
+	$_->{mntpoint} eq $mntpoint and return $_ foreach @$fstab;
+    }
+}
-- 
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