package CPAN::HandleConfig; use strict; use vars qw(%can %keys $loading $VERSION); $VERSION = sprintf "%.6f", substr(q$Rev: 2212 $,4)/1000000 + 5.4; %can = ( commit => "Commit changes to disk", defaults => "Reload defaults from disk", help => "Short help about 'o conf' usage", init => "Interactive setting of all options", ); # Q: where is the "How do I add a new config option" HOWTO? # A1: svn diff -r 757:758 # where dagolden added test_report # A2: svn diff -r 985:986 # where andk added yaml_module %keys = map { $_ => undef } ( "applypatch", "auto_commit", "build_cache", "build_dir", "build_dir_reuse", "build_requires_install_policy", "bzip2", "cache_metadata", "check_sigs", "colorize_debug", "colorize_output", "colorize_print", "colorize_warn", "commandnumber_in_prompt", "commands_quote", "cpan_home", "curl", "dontload_hash", # deprecated after 1.83_68 (rev. 581) "dontload_list", "ftp", "ftp_passive", "ftp_proxy", "getcwd", "gpg", "gzip", "histfile", "histsize", "http_proxy", "inactivity_timeout", "index_expire", "inhibit_startup_message", "keep_source_where", "load_module_verbosity", "lynx", "make", "make_arg", "make_install_arg", "make_install_make_command", "makepl_arg", "mbuild_arg", "mbuild_install_arg", "mbuild_install_build_command", "mbuildpl_arg", "ncftp", "ncftpget", "no_proxy", "pager", "password", "patch", "prefer_installer", "prefs_dir", "prerequisites_policy", "proxy_pass", "proxy_user", "randomize_urllist", "scan_cache", "shell", "show_unparsable_versions", "show_upload_date", "show_zero_versions", "tar", "tar_verbosity", "term_is_latin", "term_ornaments", "test_report", "unzip", "urllist", "use_sqlite", "username", "wait_list", "wget", "yaml_load_code", "yaml_module", ); my %prefssupport = map { $_ => 1 } ( "build_requires_install_policy", "check_sigs", "make", "make_install_make_command", "prefer_installer", "test_report", ); if ($^O eq "MSWin32") { for my $k (qw( mbuild_install_build_command make_install_make_command )) { delete $keys{$k}; if (exists $CPAN::Config->{$k}) { for ("deleting previously set config variable '$k' => '$CPAN::Config->{$k}'") { $CPAN::Frontend ? $CPAN::Frontend->mywarn($_) : warn $_; } delete $CPAN::Config->{$k}; } } } # returns true on successful action sub edit { my($self,@args) = @_; return unless @args; CPAN->debug("self[$self]args[".join(" | ",@args)."]"); my($o,$str,$func,$args,$key_exists); $o = shift @args; $DB::single = 1; if($can{$o}) { $self->$o(args => \@args); # o conf init => sub init => sub load return 1; } else { CPAN->debug("o[$o]") if $CPAN::DEBUG; unless (exists $keys{$o}) { $CPAN::Frontend->mywarn("Warning: unknown configuration variable '$o'\n"); } my $changed; # one day I used randomize_urllist for a boolean, so we must # list them explicitly --ak if (0) { } elsif ($o =~ /^(wait_list|urllist|dontload_list)$/) { # # ARRAYS # $func = shift @args; $func ||= ""; CPAN->debug("func[$func]args[@args]") if $CPAN::DEBUG; # Let's avoid eval, it's easier to comprehend without. if ($func eq "push") { push @{$CPAN::Config->{$o}}, @args; $changed = 1; } elsif ($func eq "pop") { pop @{$CPAN::Config->{$o}}; $changed = 1; } elsif ($func eq "shift") { shift @{$CPAN::Config->{$o}}; $changed = 1; } elsif ($func eq "unshift") { unshift @{$CPAN::Config->{$o}}, @args; $changed = 1; } elsif ($func eq "splice") { my $offset = shift @args || 0; my $length = shift @args || 0; splice @{$CPAN::Config->{$o}}, $offset, $length, @args; # may warn $changed = 1; } elsif ($func) { $CPAN::Config->{$o} = [$func, @args]; $changed = 1; } else { $self->prettyprint($o); } if ($changed) { if ($o eq "urllist") { # reset the cached values undef $CPAN::FTP::Thesite; undef $CPAN::FTP::Themethod; $CPAN::Index::LAST_TIME = 0; } elsif ($o eq "dontload_list") { # empty it, it will be built up again $CPAN::META->{dontload_hash} = {}; } } } elsif ($o =~ /_hash$/) { # # HASHES # if (@args==1 && $args[0] eq "") { @args = (); } elsif (@args % 2) { push @args, ""; } $CPAN::Config->{$o} = { @args }; $changed = 1; } else { # # SCALARS # if (defined $args[0]) { $CPAN::CONFIG_DIRTY = 1; $CPAN::Config->{$o} = $args[0]; $changed = 1; } $self->prettyprint($o) if exists $keys{$o} or defined $CPAN::Config->{$o}; } if ($changed) { if ($CPAN::Config->{auto_commit}) { $self->commit; } else { $CPAN::CONFIG_DIRTY = 1; $CPAN::Frontend->myprint("Please use 'o conf commit' to ". "make the config permanent!\n\n"); } } } } sub prettyprint { my($self,$k) = @_; my $v = $CPAN::Config->{$k}; if (ref $v) { my(@report); if (ref $v eq "ARRAY") { @report = map {"\t$_ \[$v->[$_]]\n"} 0..$#$v; } else { @report = map { sprintf "\t%-18s => %s\n", "[$_]", defined $v->{$_} ? "[$v->{$_}]" : "undef" } keys %$v; } $CPAN::Frontend->myprint( join( "", sprintf( " %-18s\n", $k ), @report ) ); } elsif (defined $v) { $CPAN::Frontend->myprint(sprintf " %-18s [%s]\n", $k, $v); } else { $CPAN::Frontend->myprint(sprintf " %-18s undef\n", $k); } } sub commit { my($self,@args) = @_; CPAN->debug("args[@args]") if $CPAN::DEBUG; if ($CPAN::RUN_DEGRADED) { $CPAN::Frontend->mydie( "'o conf commit' disabled in ". "degraded mode. Maybe try\n". " !undef \$CPAN::RUN_DEGRADED\n" ); } my $configpm; if (@args) { if ($args[0] eq "args") { # we have not signed that contract } else { $configpm = $args[0]; } } unless (defined $configpm) { $configpm ||= $INC{"CPAN/MyConfig.pm"}; $configpm ||= $INC{"CPAN/Config.pm"}; $configpm || Carp::confess(q{ CPAN::Config::commit called without an argument. Please specify a filename where to save the configuration or try "o conf init" to have an interactive course through configing. }); } my($mode); if (-f $configpm) { $mode = (stat $configpm)[2]; if ($mode && ! -w _) { Carp::confess("$configpm is not writable"); } } my $msg; $msg = <new; rename $configpm, "$configpm~" if -f $configpm; open $fh, ">$configpm" or $CPAN::Frontend->mydie("Couldn't open >$configpm: $!"); $fh->print(qq[$msg\$CPAN::Config = \{\n]); foreach (sort keys %$CPAN::Config) { unless (exists $keys{$_}) { # do not drop them: forward compatibility! $CPAN::Frontend->mywarn("Unknown config variable '$_'\n"); next; } $fh->print( " '$_' => ", $self->neatvalue($CPAN::Config->{$_}), ",\n" ); } $fh->print("};\n1;\n__END__\n"); close $fh; #$mode = 0444 | ( $mode & 0111 ? 0111 : 0 ); #chmod $mode, $configpm; ###why was that so? $self->defaults; $CPAN::Frontend->myprint("commit: wrote '$configpm'\n"); $CPAN::CONFIG_DIRTY = 0; 1; } # stolen from MakeMaker; not taking the original because it is buggy; # bugreport will have to say: keys of hashes remain unquoted and can # produce syntax errors sub neatvalue { my($self, $v) = @_; return "undef" unless defined $v; my($t) = ref $v; unless ($t) { $v =~ s/\\/\\\\/g; return "q[$v]"; } if ($t eq 'ARRAY') { my(@m, @neat); push @m, "["; foreach my $elem (@$v) { push @neat, "q[$elem]"; } push @m, join ", ", @neat; push @m, "]"; return join "", @m; } return "$v" unless $t eq 'HASH'; my(@m, $key, $val); while (($key,$val) = each %$v) { last unless defined $key; # cautious programming in case (undef,undef) is true push(@m,"q[$key]=>".$self->neatvalue($val)) ; } return "{ ".join(', ',@m)." }"; } sub defaults { my($self) = @_; if ($CPAN::RUN_DEGRADED) { $CPAN::Frontend->mydie( "'o conf defaults' disabled in ". "degraded mode. Maybe try\n". " !undef \$CPAN::RUN_DEGRADED\n" ); } my $done; for my $config (qw(CPAN/MyConfig.pm CPAN/Config.pm)) { if ($INC{$config}) { CPAN->debug("INC{'$config'}[$INC{$config}]") if $CPAN::DEBUG; CPAN::Shell->_reload_this($config,{reloforce => 1}); $CPAN::Frontend->myprint("'$INC{$config}' reread\n"); last; } } $CPAN::CONFIG_DIRTY = 0; 1; } =head2 C<< CLASS->safe_quote ITEM >> Quotes an item to become safe against spaces in shell interpolation. An item is enclosed in double quotes if: - the item contains spaces in the middle - the item does not start with a quote This happens to avoid shell interpolation problems when whitespace is present in directory names. This method uses C to determine the correct quote. If C is a space, no quoting will take place. if it starts and ends with the same quote character: leave it as it is if it contains no whitespace: leave it as it is if it contains whitespace, then if it contains quotes: better leave it as it is else: quote it with the correct quote type for the box we're on =cut { # Instead of patching the guess, set commands_quote # to the right value my ($quotes,$use_quote) = $^O eq 'MSWin32' ? ('"', '"') : (q{"'}, "'") ; sub safe_quote { my ($self, $command) = @_; # Set up quote/default quote my $quote = $CPAN::Config->{commands_quote} || $quotes; if ($quote ne ' ' and defined($command ) and $command =~ /\s/ and $command !~ /[$quote]/) { return qq<$use_quote$command$use_quote> } return $command; } } sub init { my($self,@args) = @_; CPAN->debug("self[$self]args[".join(",",@args)."]"); $self->load(doit => 1, @args); 1; } # This is a piece of repeated code that is abstracted here for # maintainability. RMB # sub _configpmtest { my($configpmdir, $configpmtest) = @_; if (-w $configpmtest) { return $configpmtest; } elsif (-w $configpmdir) { #_#_# following code dumped core on me with 5.003_11, a.k. my $configpm_bak = "$configpmtest.bak"; unlink $configpm_bak if -f $configpm_bak; if( -f $configpmtest ) { if( rename $configpmtest, $configpm_bak ) { $CPAN::Frontend->mywarn(<new; if ($fh->open(">$configpmtest")) { $fh->print("1;\n"); return $configpmtest; } else { # Should never happen Carp::confess("Cannot open >$configpmtest"); } } else { return } } sub require_myconfig_or_config () { return if $INC{"CPAN/MyConfig.pm"}; local @INC = @INC; my $home = home(); unshift @INC, File::Spec->catdir($home,'.cpan'); eval { require CPAN::MyConfig }; my $err_myconfig = $@; if ($err_myconfig and $err_myconfig !~ m#locate CPAN/MyConfig\.pm#) { die "Error while requiring CPAN::MyConfig:\n$err_myconfig"; } unless ($INC{"CPAN/MyConfig.pm"}) { # this guy has settled his needs already eval {require CPAN::Config;}; # not everybody has one my $err_config = $@; if ($err_config and $err_config !~ m#locate CPAN/Config\.pm#) { die "Error while requiring CPAN::Config:\n$err_config"; } } } sub home () { my $home; if ($CPAN::META->has_usable("File::HomeDir")) { $home = File::HomeDir->my_data; unless (defined $home) { $home = File::HomeDir->my_home } } unless (defined $home) { $home = $ENV{HOME}; } $home; } sub load { my($self, %args) = @_; $CPAN::Be_Silent++ if $args{be_silent}; my $doit; $doit = delete $args{doit}; use Carp; require_myconfig_or_config; my @miss = $self->missing_config_data; return unless $doit || @miss; return if $loading; $loading++; require CPAN::FirstTime; my($configpm,$fh,$redo); $redo ||= ""; if (defined $INC{"CPAN/Config.pm"} && -w $INC{"CPAN/Config.pm"}) { $configpm = $INC{"CPAN/Config.pm"}; $redo++; } elsif (defined $INC{"CPAN/MyConfig.pm"} && -w $INC{"CPAN/MyConfig.pm"}) { $configpm = $INC{"CPAN/MyConfig.pm"}; $redo++; } else { my($path_to_cpan) = File::Basename::dirname($INC{"CPAN.pm"}); my($configpmdir) = File::Spec->catdir($path_to_cpan,"CPAN"); my($configpmtest) = File::Spec->catfile($configpmdir,"Config.pm"); my $inc_key; if (-d $configpmdir or File::Path::mkpath($configpmdir)) { $configpm = _configpmtest($configpmdir,$configpmtest); $inc_key = "CPAN/Config.pm"; } unless ($configpm) { $configpmdir = File::Spec->catdir(home,".cpan","CPAN"); File::Path::mkpath($configpmdir); $configpmtest = File::Spec->catfile($configpmdir,"MyConfig.pm"); $configpm = _configpmtest($configpmdir,$configpmtest); $inc_key = "CPAN/MyConfig.pm"; } if ($configpm) { $INC{$inc_key} = $configpm; } else { my $text = qq{WARNING: CPAN.pm is unable to } . qq{create a configuration file.}; output($text, 'confess'); } } local($") = ", "; if ($redo && !$doit) { $CPAN::Frontend->myprint(<{$_}; } return @miss; } sub help { $CPAN::Frontend->myprint(q[ Known options: commit commit session changes to disk defaults reload default config values from disk help this help init enter a dialog to set all or a set of parameters Edit key values as in the following (the "o" is a literal letter o): o conf build_cache 15 o conf build_dir "/foo/bar" o conf urllist shift o conf urllist unshift ftp://ftp.foo.bar/ o conf inhibit_startup_message 1 ]); undef; #don't reprint CPAN::Config } sub cpl { my($word,$line,$pos) = @_; $word ||= ""; CPAN->debug("word[$word] line[$line] pos[$pos]") if $CPAN::DEBUG; my(@words) = split " ", substr($line,0,$pos+1); if ( defined($words[2]) and $words[2] =~ /list$/ and ( @words == 3 || @words == 4 && length($word) ) ) { return grep /^\Q$word\E/, qw(splice shift unshift pop push); } elsif (defined($words[2]) and $words[2] eq "init" and ( @words == 3 || @words >= 4 && length($word) )) { return sort grep /^\Q$word\E/, keys %keys; } elsif (@words >= 4) { return (); } my %seen; my(@o_conf) = sort grep { !$seen{$_}++ } keys %can, keys %$CPAN::Config, keys %keys; return grep /^\Q$word\E/, @o_conf; } sub prefs_lookup { my($self,$distro,$what) = @_; if ($prefssupport{$what}) { return $CPAN::Config->{$what} unless $distro and $distro->prefs and $distro->prefs->{cpanconfig} and defined $distro->prefs->{cpanconfig}{$what}; return $distro->prefs->{cpanconfig}{$what}; } else { $CPAN::Frontend->mywarn("Warning: $what not yet officially ". "supported for distroprefs, doing a normal lookup"); return $CPAN::Config->{$what}; } } { package CPAN::Config; ####::###### #hide from indexer # note: J. Nick Koston wrote me that they are using # CPAN::Config->commit although undocumented. I suggested # CPAN::Shell->o("conf","commit") even when ugly it is at least # documented # that's why I added the CPAN::Config class with autoload and # deprecated warning use strict; use vars qw($AUTOLOAD $VERSION); $VERSION = sprintf "%.2f", substr(q$Rev: 2212 $,4)/100; # formerly CPAN::HandleConfig was known as CPAN::Config sub AUTOLOAD { my $class = shift; # e.g. in dh-make-perl: CPAN::Config my($l) = $AUTOLOAD; $CPAN::Frontend->mywarn("Dispatching deprecated method '$l' to CPAN::HandleConfig\n"); $l =~ s/.*:://; CPAN::HandleConfig->$l(@_); } } 1; __END__ =head1 LICENSE This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. =cut # Local Variables: # mode: cperl # cperl-indent-level: 4 # End: