diff options
Diffstat (limited to 'perl-install/common.pm')
| -rw-r--r-- | perl-install/common.pm | 575 |
1 files changed, 26 insertions, 549 deletions
diff --git a/perl-install/common.pm b/perl-install/common.pm index 779cec099..6c12961ef 100644 --- a/perl-install/common.pm +++ b/perl-install/common.pm @@ -2,296 +2,57 @@ package common; use diagnostics; use strict; -use vars qw(@ISA %EXPORT_TAGS @EXPORT_OK $printable_chars $sizeof_int $bitof_int $cancel $SECTORSIZE %compat_arch); +use vars qw(@ISA %EXPORT_TAGS @EXPORT_OK $printable_chars $sizeof_int $bitof_int $error $cancel $SECTORSIZE); @ISA = qw(Exporter); %EXPORT_TAGS = ( - common => [ qw(__ even odd arch better_arch compat_arch min max sqr sum and_ or_ sign product bool invbool listlength bool2text bool2yesno text2bool to_int to_float ikeys member divide is_empty_array_ref is_empty_hash_ref add2hash add2hash_ set_new set_add round round_up round_down first second top uniq translate untranslate warp_text formatAlaTeX formatLines deref) ], - functional => [ qw(fold_left compose mapgrep map_index grep_index find_index map_each grep_each list2kv map_tab_hash mapn mapn_ difference2 before_leaving catch_cdie cdie combine) ], - file => [ qw(dirname basename touch all glob_ cat_ output symlinkf chop_ mode typeFromMagic expand_symlinks) ], - system => [ qw(sync makedev unmakedev psizeof strcpy gettimeofday syscall_ salt getVarsFromSh setVarsInSh setVarsInCsh substInFile availableRam availableMemory removeXiBSuffix template2file template2userfile update_userkderc list_skels formatTime unix2dos setVirtual) ], - constant => [ qw($printable_chars $sizeof_int $bitof_int $SECTORSIZE %compat_arch) ], + common => [ qw(min max bool member divide error cancel is_empty_array_ref round_up round_down first top) ], + file => [ qw(dirname basename all glob_ cat_ chop_ mode) ], + system => [ qw(sync makedev unmakedev psizeof strcpy gettimeofday syscall_ crypt_) ], + constant => [ qw($printable_chars $sizeof_int $bitof_int $SECTORSIZE) ], ); @EXPORT_OK = map { @$_ } values %EXPORT_TAGS; - -#-##################################################################################### -#- Globals -#-##################################################################################### $printable_chars = "\x20-\x7E"; -$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 -#-##################################################################################### +$sizeof_int = psizeof("i"); +$bitof_int = $sizeof_int * 8; +$error = 0; +$cancel = 0; +$SECTORSIZE = 512; -sub fold_left(&@) { - my $f = shift; - local $a = shift; - foreach $b (@_) { $a = &$f() } - $a -} +1; -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 min { my $min = shift; grep { $_ < $min and $min = $_; } @_; $min } +sub max { my $max = shift; grep { $_ > $max and $max = $_; } @_; $max } sub first { $_[0] } -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 top { $_[$#_] } 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|.*/||; $_ } -sub bool($) { $_[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 error { $error = 1; 0 } +sub cancel { $cancel = 1; 0 } +sub bool { $_[0] ? 1 : 0 } sub strcpy { substr($_[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>; 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 cat_ { local *F; open F, $_[0] or $_[1] ? die "cat of file $_[0] failed: $!\n" : return; my @l = <F>; @l } sub chop_ { map { my $l = $_; chomp $l; $l } @_ } sub divide { my $d = int $_[0] / $_[1]; wantarray ? ($d, $_[0] % $_[1]) : $d } -sub round { int ($_[0] + 0.5) } sub round_up { my ($i, $r) = @_; $i += $r - ($i + $r - 1) % $r - 1; } sub round_down { my ($i, $r) = @_; $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 failed: $!\n"; unpack("LL", $t) } -sub unix2dos { local $_ = $_[0]; s/\015$//mg; s/$/\015/mg; $_ } +sub gettimeofday { my $t = pack "LL"; syscall_('gettimeofday', $t, 0) or die "gettimeofday: $!\n"; unpack("LL", $t) } 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 open dir $d: $!\n"; - my @l = grep { $_ ne '.' && $_ ne '..' } readdir F; - closedir F; - - @l; + opendir F, $d or die "all: can't opendir $d: $!\n"; + grep { $_ ne '.' && $_ ne '..' } readdir F; } sub glob_ { @@ -301,7 +62,7 @@ sub glob_ { ($f = quotemeta $f) =~ s/\\\*/.*/g; $d =~ m|/$| or $d .= '/'; - map { $d eq './' ? $_ : "$d$_" } grep { /^$f$/ } all($d); + map { $d eq './' ? $_ : "$d$_" } grep { /$f/ } all($d); } @@ -312,296 +73,12 @@ sub syscall_ { syscall(&{$common::{"SYS_$f"}}, @_) == 0; } -sub salt($) { - 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; + +sub crypt_ { + local $_ = (gettimeofday())[1] % 0x40; 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, $suffix) = @_; - map { "$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 $po::I18N::{$_}; - return ${$po::I18N::{$_}}{$s} || $s if %{$po::I18N::{$_}}; - } - $s; -} - -sub untranslate($@) { - 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, $_[0] or return; - foreach (<F>) { - my ($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, $l, @fields) = @_; - @fields = keys %$l unless @fields; - -#- my $b = 1; $b &&= $l->{$_} foreach @fields; $b or return; - local *F; - open F, "> $_[0]" or die "cannot create config file $file"; - $l->{$_} and print F "$_=$l->{$_}\n" foreach @fields; -} -sub setVarsInCsh { - my ($file, $l, @fields) = @_; - @fields = keys %$l unless @fields; - -#- my $b = 1; $b &&= $l->{$_} foreach @fields; $b or return; - 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), $_); - } -} -sub update_userkderc { - my ($prefix, $category, %subst) = @_; - - foreach my $file (list_skels($prefix, '.kderc')) { - output $file, - (map { - my $l = $_; - s/^\s*//; - if (my $i = /^\[$category\]/i ... /^\[/) { - if ($i =~ /E/) { #- for last line of category - $l = join('', values %subst) . $l; - %subst = (); - } elsif (/^(\w*?)=/) { - if (my $e = delete $subst{lc($1)}) { - $l = "$1=$e\n"; - } - } - } - $l; - } cat_($file)), - (%subst && "[$category]\n", values %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 $name; - } - undef; -} - -sub availableRam() { sum map { /(\d+)/ } grep { /^(MemTotal):/ } cat_("/proc/meminfo"); } -sub availableMemory() { sum map { /(\d+)/ } grep { /^(MemTotal|SwapTotal):/ } cat_("/proc/meminfo"); } - -sub setVirtual($) { - 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; - $_; -} - -sub formatTime($) { - my ($s, $m, $h) = gmtime($_[0]); - sprintf "%02d:%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, undef, $free, undef) = unpack "L2L4", $buf; - map { $_ * ($blocksize / 1024) } $size, $free; -} - - - -#-###################################################################################### -#- Wonderful perl :( -#-###################################################################################### -1; # |