diff options
Diffstat (limited to 'perl-install/common.pm')
| -rw-r--r-- | perl-install/common.pm | 616 |
1 files changed, 587 insertions, 29 deletions
diff --git a/perl-install/common.pm b/perl-install/common.pm index 6c12961ef..2b85f8032 100644 --- a/perl-install/common.pm +++ b/perl-install/common.pm @@ -1,58 +1,298 @@ -package common; +package common; # $Id$ use diagnostics; use strict; -use vars qw(@ISA %EXPORT_TAGS @EXPORT_OK $printable_chars $sizeof_int $bitof_int $error $cancel $SECTORSIZE); +use vars qw(@ISA %EXPORT_TAGS @EXPORT_OK $printable_chars $sizeof_int $bitof_int $cancel $SECTORSIZE %compat_arch); @ISA = qw(Exporter); %EXPORT_TAGS = ( - common => [ qw(min max bool member divide error cancel is_empty_array_ref round_up round_down first top) ], - file => [ qw(dirname basename all glob_ cat_ chop_ mode) ], - system => [ qw(sync makedev unmakedev psizeof strcpy gettimeofday syscall_ crypt_) ], - constant => [ qw($printable_chars $sizeof_int $bitof_int $SECTORSIZE) ], + common => [ qw(__ even odd arch better_arch compat_arch min max sqr sum and_ or_ sign product bool invbool listlength bool2text bool2yesno text2bool to_int to_float ikeys member divide is_empty_array_ref is_empty_hash_ref add2hash add2hash_ set_new set_add round round_up round_down first second top uniq translate untranslate warp_text formatAlaTeX formatLines deref next_val_in_array) ], + functional => [ qw(fold_left compose mapgrep map_index grep_index find_index map_each grep_each list2kv map_tab_hash mapn mapn_ difference2 before_leaving catch_cdie cdie combine) ], + file => [ qw(dirname basename touch all glob_ cat_ cat__ output symlinkf chop_ mode typeFromMagic expand_symlinks) ], + system => [ qw(sync makedev unmakedev psizeof strcpy gettimeofday syscall_ salt getVarsFromSh setVarsInSh setVarsInShMode setVarsInCsh substInFile availableMemory availableRamMB removeXiBSuffix template2file template2userfile update_userkderc list_skels formatTime formatTimeRaw unix2dos setVirtual) ], + constant => [ qw($printable_chars $sizeof_int $bitof_int $SECTORSIZE %compat_arch) ], ); @EXPORT_OK = map { @$_ } values %EXPORT_TAGS; + +#-##################################################################################### +#- Globals +#-##################################################################################### $printable_chars = "\x20-\x7E"; -$sizeof_int = psizeof("i"); -$bitof_int = $sizeof_int * 8; -$error = 0; -$cancel = 0; -$SECTORSIZE = 512; +$sizeof_int = psizeof("i"); +$bitof_int = $sizeof_int * 8; +$SECTORSIZE = 512; +%compat_arch = ( #- compatibilty arch mapping. + 'noarch' => undef, + 'i386' => 'noarch', + 'i486' => 'i386', + 'i586' => 'i486', + 'i686' => 'i586', + 'i786' => 'i686', + 'k6' => 'i586', + 'k7' => 'k6', + 'k8' => 'k7', + 'ppc' => 'noarch', + 'alpha' => 'noarch', + 'sparc' => 'noarch', + 'sparc32' => 'sparc', + 'sparc64' => 'sparc32', + ); + +#-##################################################################################### +#- Functions +#-##################################################################################### -1; +sub fold_left(&@) { + my $f = shift; + local $a = shift; + foreach $b (@_) { $a = &$f() } + $a +} -sub min { my $min = shift; grep { $_ < $min and $min = $_; } @_; $min } -sub max { my $max = shift; grep { $_ > $max and $max = $_; } @_; $max } +sub _ { + my $s = shift @_; my $t = translate($s); + $t && ref $t or return sprintf $t, @_; + my ($T, @p) = @$t; + sprintf $T, @_[@p]; +} +#-delete $main::{'_'}; +sub __ { $_[0] } +sub even($) { $_[0] % 2 == 0 } +sub odd($) { $_[0] % 2 == 1 } +sub min { fold_left { $a < $b ? $a : $b } @_ } +sub max { fold_left { $a > $b ? $a : $b } @_ } +sub sum { fold_left { $a + $b } @_ } +sub and_{ fold_left { $a && $b } @_ } +sub or_ { fold_left { $a || $b } @_ } +sub sqr { $_[0] * $_[0] } +sub sign { $_[0] <=> 0 } +sub product { fold_left { $a * $b } @_ } sub first { $_[0] } -sub top { $_[$#_] } +sub second { $_[1] } +sub top { $_[-1] } +sub uniq { my %l; @l{@_} = (); keys %l } +sub to_int { $_[0] =~ /(\d*)/; $1 } +sub to_float { $_[0] =~ /(\d*(\.\d*)?)/; $1 } +sub ikeys { my %l = @_; sort { $a <=> $b } keys %l } +sub add2hash($$) { my ($a, $b) = @_; while (my ($k, $v) = each %{$b || {}}) { $a->{$k} ||= $v } $a } +sub add2hash_($$) { my ($a, $b) = @_; while (my ($k, $v) = each %{$b || {}}) { exists $a->{$k} or $a->{$k} = $v } $a } sub member { my $e = shift; foreach (@_) { $e eq $_ and return 1 } 0 } sub dirname { @_ == 1 or die "usage: dirname <name>\n"; local $_ = shift; s|[^/]*/*\s*$||; s|(.)/*$|$1|; $_ || '.' } sub basename { @_ == 1 or die "usage: basename <name>\n"; local $_ = shift; s|/*\s*$||; s|.*/||; $_ } -sub error { $error = 1; 0 } -sub cancel { $cancel = 1; 0 } -sub bool { $_[0] ? 1 : 0 } +sub bool($) { $_[0] ? 1 : 0 } +sub invbool { my $a = shift; $$a = !$$a; $$a } +sub listlength { scalar @_ } +sub bool2text { $_[0] ? "true" : "false" } +sub bool2yesno { $_[0] ? "yes" : "no" } +sub text2bool { my $t = lc($_[0]); $t eq "true" || $t eq "yes" ? 1 : 0 } sub strcpy { substr($_[0], $_[2] || 0, length $_[1]) = $_[1] } -sub cat_ { local *F; open F, $_[0] or $_[1] ? die "cat of file $_[0] failed: $!\n" : return; my @l = <F>; @l } +sub cat_ { local *F; open F, $_[0] or $_[1] ? die "cat of file $_[0] failed: $!\n" : return; my @l = <F>; wantarray ? @l : join '', @l } +sub cat__ { my ($f) = @_; my @l = <$f>; wantarray ? @l : join '', @l } +sub output { my $f = shift; local *F; open F, ">$f" or die "output in file $f failed: $!\n"; print F foreach @_; } +sub deref { ref $_[0] eq "ARRAY" ? @{$_[0]} : ref $_[0] eq "HASH" ? %{$_[0]} : $_[0] } +sub linkf { unlink $_[1]; link $_[0], $_[1] } +sub symlinkf { unlink $_[1]; symlink $_[0], $_[1] } sub chop_ { map { my $l = $_; chomp $l; $l } @_ } sub divide { my $d = int $_[0] / $_[1]; wantarray ? ($d, $_[0] % $_[1]) : $d } -sub round_up { my ($i, $r) = @_; $i += $r - ($i + $r - 1) % $r - 1; } -sub round_down { my ($i, $r) = @_; $i -= $i % $r; } +sub round { int ($_[0] + 0.5) } +sub round_up { my ($i, $r) = @_; $i = int $i; $i += $r - ($i + $r - 1) % $r - 1; } +sub round_down { my ($i, $r) = @_; $i = int $i; $i -= $i % $r; } sub is_empty_array_ref { my $a = shift; !defined $a || @$a == 0 } +sub is_empty_hash_ref { my $a = shift; !defined $a || keys(%$a) == 0 } +sub difference2 { my %l; @l{@{$_[1]}} = (); grep { !exists $l{$_} } @{$_[0]} } +sub intersection { my (%l, @m); @l{@{shift @_}} = (); foreach (@_) { @m = grep { exists $l{$_} } @$_; %l = (); @l{@m} = (); } keys %l } + +sub set_new(@) { my %l; @l{@_} = undef; { list => [ @_ ], hash => \%l } } +sub set_add($@) { my $o = shift; foreach (@_) { exists $o->{hash}{$_} and next; push @{$o->{list}}, $_; $o->{hash}{$_} = undef } } sub sync { syscall_('sync') } -sub gettimeofday { my $t = pack "LL"; syscall_('gettimeofday', $t, 0) or die "gettimeofday: $!\n"; unpack("LL", $t) } +sub gettimeofday { my $t = pack "LL"; syscall_('gettimeofday', $t, 0) or die "gettimeofday failed: $!\n"; unpack("LL", $t) } +sub unix2dos { local $_ = $_[0]; s/\015$//mg; s/$/\015/mg; $_ } sub remove_spaces { local $_ = shift; s/^ +//; s/ +$//; $_ } sub mode { my @l = stat $_[0] or die "unable to get mode of file $_[0]: $!\n"; $l[2] } sub psizeof { length pack $_[0] } +sub concat_symlink { + my ($f, $l) = @_; + $l =~ m|^\.\./(/.*)| and return $1; + + $f =~ s|/$||; + while ($l =~ s|^\.\./||) { + $f =~ s|/[^/]+$|| or die "concat_symlink: $f $l\n"; + } + "$f/$l"; +} + +sub expand_symlinks { + my ($first, @l) = split '/', $_[0]; + $first eq '' or die "expand_symlinks: $_[0] is relative\n"; + my ($f, $l); + foreach (@l) { + $f .= "/$_"; + $f = concat_symlink($f, "../$l") while $l = readlink $f; + } + $f; +} + +sub arch() { + require c; + c::kernel_arch(); +} +sub better_arch { + my ($new, $old) = @_; + while ($new && $new ne $old) { $new = $compat_arch{$new} } + $new; +} +sub compat_arch { better_arch(arch(), $_[0]) } + +sub touch { + my ($f) = @_; + unless (-e $f) { + local *F; + open F, ">$f"; + } + my $now = time; + utime $now, $now, $f; +} + +sub mapgrep(&@) { + my $f = shift; + my @l; + foreach (@_) { + my ($b, $v) = $f->($_); + push @l, $v if $b; + } + @l; +} + +sub map_index(&@) { + my $f = shift; + my @v; local $::i = 0; + map { @v = &$f($::i); $::i++; @v } @_; +} +sub grep_index(&@) { + my $f = shift; + my $v; local $::i = 0; + grep { $v = &$f($::i); $::i++; $v } @_; +} +sub find_index(&@) { + my $f = shift; + local $_; + for (my $i = 0; $i < @_; $i++) { + $_ = $_[$i]; + &$f and return $i; + } + die "find_index failed in @_"; +} + +sub map_each(&%) { + my ($f, %h) = @_; + my @l; + local ($::a, $::b); + while (($::a, $::b) = each %h) { push @l, &$f($::a, $::b) } + @l; +} +sub grep_each(&%) { + my ($f, %h) = @_; + my %l; + local ($::a, $::b); + while (($::a, $::b) = each %h) { $l{$::a} = $::b if &$f($::a, $::b) } + %l; +} +sub list2kv(@) { [ grep_index { even($::i) } @_ ], [ grep_index { odd($::i) } @_ ] } + +sub combine { + my $nb = shift; + my @l; while (my @m = splice(@_, 0, $nb)) { push @l, \@m } + @l; +} + +#- pseudo-array-hash :) +sub map_tab_hash(&$@) { + my ($f, $fields, @tab_hash) = @_; + my %hash; + my $key = { map_index {($_, $::i + 1)} @{$fields} }; + + for (my $i = 0; $i < @tab_hash; $i += 2) { + my $h = [$key, @{$tab_hash[$i + 1]}]; + &$f($i, $h) if $f; + $hash{ $tab_hash[$i] } = $h; + } + %hash; +} + +sub smapn { + my $f = shift; + my $n = shift; + my @r = (); + for (my $i = 0; $i < $n; $i++) { push @r, &$f(map { $_->[$i] } @_); } + @r +} +sub mapn(&@) { + my $f = shift; + smapn($f, min(map { scalar @$_ } @_), @_); +} +sub mapn_(&@) { + my $f = shift; + smapn($f, max(map { scalar @$_ } @_), @_); +} + + +sub add_f4before_leaving { + my ($f, $b, $name) = @_; + + unless ($common::before_leaving::{$name}) { + no strict 'refs'; + ${"common::before_leaving::$name"} = 1; + ${"common::before_leaving::list"} = 1; + } + local *N = *{$common::before_leaving::{$name}}; + my $list = *common::before_leaving::list; + $list->{$b}{$name} = $f; + *N = sub { + my $f = $list->{$_[0]}{$name} or die ''; + $name eq 'DESTROY' and delete $list->{$_[0]}; + goto $f; + } unless defined &{*N}; + +} + +#- ! the functions are not called in the order wanted, in case of multiple before_leaving :( +sub before_leaving(&) { + my ($f) = @_; + my $b = bless {}, 'common::before_leaving'; + add_f4before_leaving($f, $b, 'DESTROY'); + $b; +} + +sub catch_cdie(&&) { + my ($f, $catch) = @_; + + local @common::cdie_catches; + unshift @common::cdie_catches, $catch; + &$f(); +} + +sub cdie($;&) { + my ($err, $f) = @_; + foreach (@common::cdie_catches) { + $@ = $err; + &{$_}(\$err) and return; + } + die $err; +} + sub all { my $d = shift; local *F; - opendir F, $d or die "all: can't opendir $d: $!\n"; - grep { $_ ne '.' && $_ ne '..' } readdir F; + opendir F, $d or return; + my @l = grep { $_ ne '.' && $_ ne '..' } readdir F; + closedir F; + + @l; } sub glob_ { @@ -62,7 +302,7 @@ sub glob_ { ($f = quotemeta $f) =~ s/\\\*/.*/g; $d =~ m|/$| or $d .= '/'; - map { $d eq './' ? $_ : "$d$_" } grep { /$f/ } all($d); + map { $d eq './' ? $_ : "$d$_" } grep { /^$f$/ } all($d); } @@ -73,12 +313,330 @@ sub syscall_ { syscall(&{$common::{"SYS_$f"}}, @_) == 0; } - -sub crypt_ { - local $_ = (gettimeofday())[1] % 0x40; +sub salt($) { + my ($nb) = @_; + require 'devices.pm'; + open F, devices::make("random") or die "missing random"; + my $s; read F, $s, $nb; + local $_ = pack "b8" x $nb, unpack "b6" x $nb, $s; tr [\0-\x3f] [0-9a-zA-Z./]; - crypt($_[0], $_) + $_; } sub makedev { ($_[0] << 8) | $_[1] } sub unmakedev { $_[0] >> 8, $_[0] & 0xff } + +sub list_passwd() { + my (@l, @e); + setpwent(); + while (@e = getpwent()) { push @l, [ @e ] } + endpwent(); + @l; +} +sub list_home() { + map { $_->[7] } grep { $_->[2] >= 500 } list_passwd(); +} +sub list_skels { + my ($prefix, $suffix) = @_; + grep { -d $_ && -w $_ } map { "$prefix$_/$suffix" } '/etc/skel', '/root', list_home() } + +sub translate { + my ($s) = @_; + my ($lang) = $ENV{LANGUAGE} || $ENV{LC_MESSAGES} || $ENV{LC_ALL} || $ENV{LANG} || 'en'; + + require lang; + foreach (split ':', $lang) { + lang::load_po($_) unless defined $po::I18N::{$_}; + if (%{$po::I18N::{$_}}) { + return if $s eq '_I18N_'; + return ${$po::I18N::{$_}}{$s} || $s + } + } + $s; +} + +sub untranslate($@) { + my $s = shift || return; + foreach (@_) { translate($_) eq $s and return $_ } + die "untranslate failed"; +} + +sub warp_text($;$) { + my ($text, $width) = @_; + $width ||= 80; + + my @l; + foreach (split "\n", $text) { + my $t = ''; + foreach (split /\s+/, $_) { + if (length "$t $_" > $width) { + push @l, $t; + $t = $_; + } else { + $t = "$t $_"; + } + } + push @l, $t; + } + @l; +} + +sub formatAlaTeX($) { + my ($t, $tmp); + foreach (split "\n", $_[0]) { + if (/^$/) { + $t .= ($t && "\n") . $tmp; + $tmp = ''; + } else { + $tmp = ($tmp && "$tmp ") . first(/^\s*(.*?)\s*$/); + } + } + $t . ($t && $tmp && "\n") . $tmp; +} + +sub formatLines($) { + my ($t, $tmp); + foreach (split "\n", $_[0]) { + if (/^\s/) { + $t .= "$tmp\n"; + $tmp = $_; + } else { + $tmp = ($tmp ? "$tmp " : ($t && "\n") . $tmp) . $_; + } + } + "$t$tmp\n"; +} + +sub getVarsFromSh($) { + my %l; + local *F; open F, $_[0] or return; + local $_; + while (<F>) { + my ($v, $val, $val2) = + /^\s* # leading space + (\w+) = # variable + ( + "([^"]*)" # double-quoted text + | '([^']*)' # single-quoted text + | [^'"\s]+ # normal text + ) + \s*$ # end of line + /x or next; + $l{$v} = $val2 || $val; + } + %l; +} + +sub setVarsInSh { + my ($file, $l, @fields) = @_; + setVarsInShMode($file, 0777 ^ umask(), $l, @fields); +} + +sub setVarsInShMode { + my ($file, $mod, $l, @fields) = @_; + @fields = keys %$l unless @fields; + + local *F; + open F, "> $file" or die "cannot create config file $file"; + chmod $mod, $file; + $l->{$_} and print F "$_=$l->{$_}\n" foreach @fields; +} + +sub setVarsInCsh { + my ($file, $l, @fields) = @_; + @fields = keys %$l unless @fields; + + local *F; + open F, "> $_[0]" or die "cannot create config file $file"; + $l->{$_} and print F "setenv $_ $l->{$_}\n" foreach @fields; +} + +sub template2file { + my ($in, $out, %toreplace) = @_; + output $out, map { s/@@@(.*?)@@@/$toreplace{$1}/g; $_ } cat_($in); +} +sub template2userfile { + my ($prefix, $in, $out_rel, $force, %toreplace) = @_; + + foreach (list_skels($prefix, $out_rel)) { + -d dirname($_) or !-e $_ or $force or next; + + template2file($in, $_, %toreplace); + m|/home/(.+?)/| and chown(getpwnam($1), getgrnam($1), $_); + } +} +sub update_userkderc { + my ($file, $category, %subst) = @_; + + output $file, + (map { + my $l = $_; + s/^\s*//; + if (my $i = /^\[$category\]/i ... /^\[/) { + if ($i =~ /E/) { #- for last line of category + $l = join('', map_each { "$::a=$::b\n" } %subst) . $l; + %subst = (); + } elsif (/^(\w*?)=/) { + if (my $e = delete $subst{lc($1)}) { + $l = "$1=$e\n"; + } + } + } + $l; + } cat_($file)), + (%subst && "[$category]\n", map_each { "$::a=$::b\n" } %subst); #- if category has not been found above. +} + +sub substInFile(&@) { + my $f = shift; + foreach my $file (@_) { + if (-e $file) { + local @ARGV = $file; + local ($^I, $_) = ''; + while (<>) { &$f($_); print } + } else { + local *F; my $old = select F; # that way eof return true + local $_ = ''; + &$f($_); + select $old; + eval { output($file, $_) }; + } + } +} + +sub best_match { + my ($str, @lis) = @_; + my @words = split /\W+/, $str; + my ($max, $res) = 0; + + foreach (@lis) { + my $count = 0; + foreach my $i (@words) { + $count++ if /$i/i; + } + $max = $count, $res = $_ if $count >= $max; + } + $res; +} + +sub bestMatchSentence { + + my $best = -1; + my $bestSentence; + my @s = split /\W+/, shift; + foreach (@_) { + my $count = 0; + foreach my $e (@s) { + $count++ if /$e/i; + } + $best = $count, $bestSentence = $_ if $count > $best; + } + $bestSentence; +} + +# count the number of character that match +sub bestMatchSentence2 { + + my $best = -1; + my $bestSentence; + my @s = split /\W+/, shift; + foreach (@_) { + my $count = 0; + foreach my $e (@s) { + $count+= length ($e) if /$e/i; + } + $best = $count, $bestSentence = $_ if $count > $best; + } + $bestSentence; +} + +sub typeFromMagic($@) { + my $f = shift; + local *F; sysopen F, $f, 0 or return; + + my $tmp; + M: foreach (@_) { + my ($name, @l) = @$_; + while (@l) { + my ($offset, $signature) = splice(@l, 0, 2); + sysseek(F, $offset, 0) or next M; + sysread(F, $tmp, length $signature); + $tmp eq $signature or next M; + } + return $name; + } + undef; +} + +sub availableMemory() { sum map { /(\d+)/ } grep { /^(MemTotal|SwapTotal):/ } cat_("/proc/meminfo"); } +sub availableRamMB() { + my $s = 4 * int ((stat("/proc/kcore"))[7] / 1024 / 1024 / 4 + 0.5); + #- HACK HACK: if i810 and memsize + require detect_devices; + return $s - 1 if $s == 128 && grep { $_->{driver} =~ /i810/ } detect_devices::probeall(); + $s; +} + +sub setVirtual($) { + my $vt = ''; + local *C; + sysopen C, "/dev/console", 2 or die "failed to open /dev/console: $!"; + ioctl(C, c::VT_GETSTATE(), $vt) or die "ioctl VT_GETSTATE failed"; + ioctl(C, c::VT_ACTIVATE(), $_[0]) or die "ioctl VT_ACTIVATE failed"; + ioctl(C, c::VT_WAITACTIVE(), $_[0]) or die "ioctl VT_WAITACTIVE failed"; + unpack "S", $vt; +} + + +sub removeXiBSuffix($) { + local $_ = shift; + + /(\d+)k$/i and return $1 * 1024; + /(\d+)M$/i and return $1 * 1024 * 1024; + /(\d+)G$/i and return $1 * 1024 * 1024 * 1024; + $_; +} + +sub truncate_list { + my $nb = shift; + @_ <= $nb ? @_ : (@_[0..$nb-1], '...'); +} + +sub formatTime { + my ($s, $m, $h) = gmtime($_[0]); + if ($h) { + sprintf "%02d:%02d", $h, $m; + } elsif ($m > 1) { + _("%d minutes", $m); + } elsif ($m == 1) { + _("1 minute"); + } else { + _("%d seconds", $s); + } +} +sub formatTimeRaw { + my ($s, $m, $h) = gmtime($_[0]); + sprintf "%d:%02d:%02d", $h, $m, $s; +} + +#- return the size of the partition and its free space in KiB +sub df { + my ($mntpoint) = @_; + my ($blocksize, $size, $free); + my $buf = ' ' x 20000; + syscall_('statfs', $mntpoint, $buf) or return; + (undef, $blocksize, $size, $free, undef, undef) = unpack "L6", $buf; + map { $_ * ($blocksize / 1024) } $size, $free; +} + +sub next_val_in_array { + my ($v, $l) = @_; + my %l = mapn { @_ } $l, [ @$l[1..$#$l], $l->[0] ]; + $l{$v}; +} + + +#-###################################################################################### +#- Wonderful perl :( +#-###################################################################################### +1; # |