| 1 | package AutoSplit;
|
|---|
| 2 |
|
|---|
| 3 | use 5.006_001;
|
|---|
| 4 | use Exporter ();
|
|---|
| 5 | use Config qw(%Config);
|
|---|
| 6 | use Carp qw(carp);
|
|---|
| 7 | use File::Basename ();
|
|---|
| 8 | use File::Path qw(mkpath);
|
|---|
| 9 | use File::Spec::Functions qw(curdir catfile catdir);
|
|---|
| 10 | use strict;
|
|---|
| 11 | our($VERSION, @ISA, @EXPORT, @EXPORT_OK, $Verbose, $Keep, $Maxlen,
|
|---|
| 12 | $CheckForAutoloader, $CheckModTime);
|
|---|
| 13 |
|
|---|
| 14 | $VERSION = "1.04";
|
|---|
| 15 | @ISA = qw(Exporter);
|
|---|
| 16 | @EXPORT = qw(&autosplit &autosplit_lib_modules);
|
|---|
| 17 | @EXPORT_OK = qw($Verbose $Keep $Maxlen $CheckForAutoloader $CheckModTime);
|
|---|
| 18 |
|
|---|
| 19 | =head1 NAME
|
|---|
| 20 |
|
|---|
| 21 | AutoSplit - split a package for autoloading
|
|---|
| 22 |
|
|---|
| 23 | =head1 SYNOPSIS
|
|---|
| 24 |
|
|---|
| 25 | autosplit($file, $dir, $keep, $check, $modtime);
|
|---|
| 26 |
|
|---|
| 27 | autosplit_lib_modules(@modules);
|
|---|
| 28 |
|
|---|
| 29 | =head1 DESCRIPTION
|
|---|
| 30 |
|
|---|
| 31 | This function will split up your program into files that the AutoLoader
|
|---|
| 32 | module can handle. It is used by both the standard perl libraries and by
|
|---|
| 33 | the MakeMaker utility, to automatically configure libraries for autoloading.
|
|---|
| 34 |
|
|---|
| 35 | The C<autosplit> interface splits the specified file into a hierarchy
|
|---|
| 36 | rooted at the directory C<$dir>. It creates directories as needed to reflect
|
|---|
| 37 | class hierarchy, and creates the file F<autosplit.ix>. This file acts as
|
|---|
| 38 | both forward declaration of all package routines, and as timestamp for the
|
|---|
| 39 | last update of the hierarchy.
|
|---|
| 40 |
|
|---|
| 41 | The remaining three arguments to C<autosplit> govern other options to
|
|---|
| 42 | the autosplitter.
|
|---|
| 43 |
|
|---|
| 44 | =over 2
|
|---|
| 45 |
|
|---|
| 46 | =item $keep
|
|---|
| 47 |
|
|---|
| 48 | If the third argument, I<$keep>, is false, then any
|
|---|
| 49 | pre-existing C<*.al> files in the autoload directory are removed if
|
|---|
| 50 | they are no longer part of the module (obsoleted functions).
|
|---|
| 51 | $keep defaults to 0.
|
|---|
| 52 |
|
|---|
| 53 | =item $check
|
|---|
| 54 |
|
|---|
| 55 | The
|
|---|
| 56 | fourth argument, I<$check>, instructs C<autosplit> to check the module
|
|---|
| 57 | currently being split to ensure that it includes a C<use>
|
|---|
| 58 | specification for the AutoLoader module, and skips the module if
|
|---|
| 59 | AutoLoader is not detected.
|
|---|
| 60 | $check defaults to 1.
|
|---|
| 61 |
|
|---|
| 62 | =item $modtime
|
|---|
| 63 |
|
|---|
| 64 | Lastly, the I<$modtime> argument specifies
|
|---|
| 65 | that C<autosplit> is to check the modification time of the module
|
|---|
| 66 | against that of the C<autosplit.ix> file, and only split the module if
|
|---|
| 67 | it is newer.
|
|---|
| 68 | $modtime defaults to 1.
|
|---|
| 69 |
|
|---|
| 70 | =back
|
|---|
| 71 |
|
|---|
| 72 | Typical use of AutoSplit in the perl MakeMaker utility is via the command-line
|
|---|
| 73 | with:
|
|---|
| 74 |
|
|---|
| 75 | perl -e 'use AutoSplit; autosplit($ARGV[0], $ARGV[1], 0, 1, 1)'
|
|---|
| 76 |
|
|---|
| 77 | Defined as a Make macro, it is invoked with file and directory arguments;
|
|---|
| 78 | C<autosplit> will split the specified file into the specified directory and
|
|---|
| 79 | delete obsolete C<.al> files, after checking first that the module does use
|
|---|
| 80 | the AutoLoader, and ensuring that the module is not already currently split
|
|---|
| 81 | in its current form (the modtime test).
|
|---|
| 82 |
|
|---|
| 83 | The C<autosplit_lib_modules> form is used in the building of perl. It takes
|
|---|
| 84 | as input a list of files (modules) that are assumed to reside in a directory
|
|---|
| 85 | B<lib> relative to the current directory. Each file is sent to the
|
|---|
| 86 | autosplitter one at a time, to be split into the directory B<lib/auto>.
|
|---|
| 87 |
|
|---|
| 88 | In both usages of the autosplitter, only subroutines defined following the
|
|---|
| 89 | perl I<__END__> token are split out into separate files. Some
|
|---|
| 90 | routines may be placed prior to this marker to force their immediate loading
|
|---|
| 91 | and parsing.
|
|---|
| 92 |
|
|---|
| 93 | =head2 Multiple packages
|
|---|
| 94 |
|
|---|
| 95 | As of version 1.01 of the AutoSplit module it is possible to have
|
|---|
| 96 | multiple packages within a single file. Both of the following cases
|
|---|
| 97 | are supported:
|
|---|
| 98 |
|
|---|
| 99 | package NAME;
|
|---|
| 100 | __END__
|
|---|
| 101 | sub AAA { ... }
|
|---|
| 102 | package NAME::option1;
|
|---|
| 103 | sub BBB { ... }
|
|---|
| 104 | package NAME::option2;
|
|---|
| 105 | sub BBB { ... }
|
|---|
| 106 |
|
|---|
| 107 | package NAME;
|
|---|
| 108 | __END__
|
|---|
| 109 | sub AAA { ... }
|
|---|
| 110 | sub NAME::option1::BBB { ... }
|
|---|
| 111 | sub NAME::option2::BBB { ... }
|
|---|
| 112 |
|
|---|
| 113 | =head1 DIAGNOSTICS
|
|---|
| 114 |
|
|---|
| 115 | C<AutoSplit> will inform the user if it is necessary to create the
|
|---|
| 116 | top-level directory specified in the invocation. It is preferred that
|
|---|
| 117 | the script or installation process that invokes C<AutoSplit> have
|
|---|
| 118 | created the full directory path ahead of time. This warning may
|
|---|
| 119 | indicate that the module is being split into an incorrect path.
|
|---|
| 120 |
|
|---|
| 121 | C<AutoSplit> will warn the user of all subroutines whose name causes
|
|---|
| 122 | potential file naming conflicts on machines with drastically limited
|
|---|
| 123 | (8 characters or less) file name length. Since the subroutine name is
|
|---|
| 124 | used as the file name, these warnings can aid in portability to such
|
|---|
| 125 | systems.
|
|---|
| 126 |
|
|---|
| 127 | Warnings are issued and the file skipped if C<AutoSplit> cannot locate
|
|---|
| 128 | either the I<__END__> marker or a "package Name;"-style specification.
|
|---|
| 129 |
|
|---|
| 130 | C<AutoSplit> will also emit general diagnostics for inability to
|
|---|
| 131 | create directories or files.
|
|---|
| 132 |
|
|---|
| 133 | =cut
|
|---|
| 134 |
|
|---|
| 135 | # for portability warn about names longer than $maxlen
|
|---|
| 136 | $Maxlen = 8; # 8 for dos, 11 (14-".al") for SYSVR3
|
|---|
| 137 | $Verbose = 1; # 0=none, 1=minimal, 2=list .al files
|
|---|
| 138 | $Keep = 0;
|
|---|
| 139 | $CheckForAutoloader = 1;
|
|---|
| 140 | $CheckModTime = 1;
|
|---|
| 141 |
|
|---|
| 142 | my $IndexFile = "autosplit.ix"; # file also serves as timestamp
|
|---|
| 143 | my $maxflen = 255;
|
|---|
| 144 | $maxflen = 14 if $Config{'d_flexfnam'} ne 'define';
|
|---|
| 145 | if (defined (&Dos::UseLFN)) {
|
|---|
| 146 | $maxflen = Dos::UseLFN() ? 255 : 11;
|
|---|
| 147 | }
|
|---|
| 148 | my $Is_VMS = ($^O eq 'VMS');
|
|---|
| 149 |
|
|---|
| 150 | # allow checking for valid ': attrlist' attachments
|
|---|
| 151 | # (we use 'our' rather than 'my' here, due to the rather complex and buggy
|
|---|
| 152 | # behaviour of lexicals with qr// and (??{$lex}) )
|
|---|
| 153 | our $nested;
|
|---|
| 154 | $nested = qr{ \( (?: (?> [^()]+ ) | (??{ $nested }) )* \) }x;
|
|---|
| 155 | our $one_attr = qr{ (?> (?! \d) \w+ (?:$nested)? ) (?:\s*\:\s*|\s+(?!\:)) }x;
|
|---|
| 156 | our $attr_list = qr{ \s* : \s* (?: $one_attr )* }x;
|
|---|
| 157 |
|
|---|
| 158 |
|
|---|
| 159 |
|
|---|
| 160 | sub autosplit{
|
|---|
| 161 | my($file, $autodir, $keep, $ckal, $ckmt) = @_;
|
|---|
| 162 | # $file - the perl source file to be split (after __END__)
|
|---|
| 163 | # $autodir - the ".../auto" dir below which to write split subs
|
|---|
| 164 | # Handle optional flags:
|
|---|
| 165 | $keep = $Keep unless defined $keep;
|
|---|
| 166 | $ckal = $CheckForAutoloader unless defined $ckal;
|
|---|
| 167 | $ckmt = $CheckModTime unless defined $ckmt;
|
|---|
| 168 | autosplit_file($file, $autodir, $keep, $ckal, $ckmt);
|
|---|
| 169 | }
|
|---|
| 170 |
|
|---|
| 171 |
|
|---|
| 172 | # This function is used during perl building/installation
|
|---|
| 173 | # ./miniperl -e 'use AutoSplit; autosplit_lib_modules(@ARGV)' ...
|
|---|
| 174 |
|
|---|
| 175 | sub autosplit_lib_modules{
|
|---|
| 176 | my(@modules) = @_; # list of Module names
|
|---|
| 177 |
|
|---|
| 178 | while(defined($_ = shift @modules)){
|
|---|
| 179 | while (m#(.*?[^:])::([^:].*)#) { # in case specified as ABC::XYZ
|
|---|
| 180 | $_ = catfile($1, $2);
|
|---|
| 181 | }
|
|---|
| 182 | s|\\|/|g; # bug in ksh OS/2
|
|---|
| 183 | s#^lib/##s; # incase specified as lib/*.pm
|
|---|
| 184 | my($lib) = catfile(curdir(), "lib");
|
|---|
| 185 | if ($Is_VMS) { # may need to convert VMS-style filespecs
|
|---|
| 186 | $lib =~ s#^\[\]#.\/#;
|
|---|
| 187 | }
|
|---|
| 188 | s#^$lib\W+##s; # incase specified as ./lib/*.pm
|
|---|
| 189 | if ($Is_VMS && /[:>\]]/) { # may need to convert VMS-style filespecs
|
|---|
| 190 | my ($dir,$name) = (/(.*])(.*)/s);
|
|---|
| 191 | $dir =~ s/.*lib[\.\]]//s;
|
|---|
| 192 | $dir =~ s#[\.\]]#/#g;
|
|---|
| 193 | $_ = $dir . $name;
|
|---|
| 194 | }
|
|---|
| 195 | autosplit_file(catfile($lib, $_), catfile($lib, "auto"),
|
|---|
| 196 | $Keep, $CheckForAutoloader, $CheckModTime);
|
|---|
| 197 | }
|
|---|
| 198 | 0;
|
|---|
| 199 | }
|
|---|
| 200 |
|
|---|
| 201 |
|
|---|
| 202 | # private functions
|
|---|
| 203 |
|
|---|
| 204 | my $self_mod_time = (stat __FILE__)[9];
|
|---|
| 205 |
|
|---|
| 206 | sub autosplit_file {
|
|---|
| 207 | my($filename, $autodir, $keep, $check_for_autoloader, $check_mod_time)
|
|---|
| 208 | = @_;
|
|---|
| 209 | my(@outfiles);
|
|---|
| 210 | local($_);
|
|---|
| 211 | local($/) = "\n";
|
|---|
| 212 |
|
|---|
| 213 | # where to write output files
|
|---|
| 214 | $autodir ||= catfile(curdir(), "lib", "auto");
|
|---|
| 215 | if ($Is_VMS) {
|
|---|
| 216 | ($autodir = VMS::Filespec::unixpath($autodir)) =~ s|/\z||;
|
|---|
| 217 | $filename = VMS::Filespec::unixify($filename); # may have dirs
|
|---|
| 218 | }
|
|---|
| 219 | unless (-d $autodir){
|
|---|
| 220 | mkpath($autodir,0,0755);
|
|---|
| 221 | # We should never need to create the auto dir
|
|---|
| 222 | # here. installperl (or similar) should have done
|
|---|
| 223 | # it. Expecting it to exist is a valuable sanity check against
|
|---|
| 224 | # autosplitting into some random directory by mistake.
|
|---|
| 225 | print "Warning: AutoSplit had to create top-level " .
|
|---|
| 226 | "$autodir unexpectedly.\n";
|
|---|
| 227 | }
|
|---|
| 228 |
|
|---|
| 229 | # allow just a package name to be used
|
|---|
| 230 | $filename .= ".pm" unless ($filename =~ m/\.pm\z/);
|
|---|
| 231 |
|
|---|
| 232 | open(my $in, "<$filename") or die "AutoSplit: Can't open $filename: $!\n";
|
|---|
| 233 | my($pm_mod_time) = (stat($filename))[9];
|
|---|
| 234 | my($autoloader_seen) = 0;
|
|---|
| 235 | my($in_pod) = 0;
|
|---|
| 236 | my($def_package,$last_package,$this_package,$fnr);
|
|---|
| 237 | while (<$in>) {
|
|---|
| 238 | # Skip pod text.
|
|---|
| 239 | $fnr++;
|
|---|
| 240 | $in_pod = 1 if /^=\w/;
|
|---|
| 241 | $in_pod = 0 if /^=cut/;
|
|---|
| 242 | next if ($in_pod || /^=cut/);
|
|---|
| 243 | next if /^\s*#/;
|
|---|
| 244 |
|
|---|
| 245 | # record last package name seen
|
|---|
| 246 | $def_package = $1 if (m/^\s*package\s+([\w:]+)\s*;/);
|
|---|
| 247 | ++$autoloader_seen if m/^\s*(use|require)\s+AutoLoader\b/;
|
|---|
| 248 | ++$autoloader_seen if m/\bISA\s*=.*\bAutoLoader\b/;
|
|---|
| 249 | last if /^__END__/;
|
|---|
| 250 | }
|
|---|
| 251 | if ($check_for_autoloader && !$autoloader_seen){
|
|---|
| 252 | print "AutoSplit skipped $filename: no AutoLoader used\n"
|
|---|
| 253 | if ($Verbose>=2);
|
|---|
| 254 | return 0;
|
|---|
| 255 | }
|
|---|
| 256 | $_ or die "Can't find __END__ in $filename\n";
|
|---|
| 257 |
|
|---|
| 258 | $def_package or die "Can't find 'package Name;' in $filename\n";
|
|---|
| 259 |
|
|---|
| 260 | my($modpname) = _modpname($def_package);
|
|---|
| 261 |
|
|---|
| 262 | # this _has_ to match so we have a reasonable timestamp file
|
|---|
| 263 | die "Package $def_package ($modpname.pm) does not ".
|
|---|
| 264 | "match filename $filename"
|
|---|
| 265 | unless ($filename =~ m/\Q$modpname.pm\E$/ or
|
|---|
| 266 | ($^O eq 'dos') or ($^O eq 'MSWin32') or ($^O eq 'NetWare') or
|
|---|
| 267 | $Is_VMS && $filename =~ m/$modpname.pm/i);
|
|---|
| 268 |
|
|---|
| 269 | my($al_idx_file) = catfile($autodir, $modpname, $IndexFile);
|
|---|
| 270 |
|
|---|
| 271 | if ($check_mod_time){
|
|---|
| 272 | my($al_ts_time) = (stat("$al_idx_file"))[9] || 1;
|
|---|
| 273 | if ($al_ts_time >= $pm_mod_time and
|
|---|
| 274 | $al_ts_time >= $self_mod_time){
|
|---|
| 275 | print "AutoSplit skipped ($al_idx_file newer than $filename)\n"
|
|---|
| 276 | if ($Verbose >= 2);
|
|---|
| 277 | return undef; # one undef, not a list
|
|---|
| 278 | }
|
|---|
| 279 | }
|
|---|
| 280 |
|
|---|
| 281 | my($modnamedir) = catdir($autodir, $modpname);
|
|---|
| 282 | print "AutoSplitting $filename ($modnamedir)\n"
|
|---|
| 283 | if $Verbose;
|
|---|
| 284 |
|
|---|
| 285 | unless (-d $modnamedir){
|
|---|
| 286 | mkpath($modnamedir,0,0777);
|
|---|
| 287 | }
|
|---|
| 288 |
|
|---|
| 289 | # We must try to deal with some SVR3 systems with a limit of 14
|
|---|
| 290 | # characters for file names. Sadly we *cannot* simply truncate all
|
|---|
| 291 | # file names to 14 characters on these systems because we *must*
|
|---|
| 292 | # create filenames which exactly match the names used by AutoLoader.pm.
|
|---|
| 293 | # This is a problem because some systems silently truncate the file
|
|---|
| 294 | # names while others treat long file names as an error.
|
|---|
| 295 |
|
|---|
| 296 | my $Is83 = $maxflen==11; # plain, case INSENSITIVE dos filenames
|
|---|
| 297 |
|
|---|
| 298 | my(@subnames, $subname, %proto, %package);
|
|---|
| 299 | my @cache = ();
|
|---|
| 300 | my $caching = 1;
|
|---|
| 301 | $last_package = '';
|
|---|
| 302 | my $out;
|
|---|
| 303 | while (<$in>) {
|
|---|
| 304 | $fnr++;
|
|---|
| 305 | $in_pod = 1 if /^=\w/;
|
|---|
| 306 | $in_pod = 0 if /^=cut/;
|
|---|
| 307 | next if ($in_pod || /^=cut/);
|
|---|
| 308 | # the following (tempting) old coding gives big troubles if a
|
|---|
| 309 | # cut is forgotten at EOF:
|
|---|
| 310 | # next if /^=\w/ .. /^=cut/;
|
|---|
| 311 | if (/^package\s+([\w:]+)\s*;/) {
|
|---|
| 312 | $this_package = $def_package = $1;
|
|---|
| 313 | }
|
|---|
| 314 |
|
|---|
| 315 | if (/^sub\s+([\w:]+)(\s*(?:\(.*?\))?(?:$attr_list)?)/) {
|
|---|
| 316 | print $out "# end of $last_package\::$subname\n1;\n"
|
|---|
| 317 | if $last_package;
|
|---|
| 318 | $subname = $1;
|
|---|
| 319 | my $proto = $2 || '';
|
|---|
| 320 | if ($subname =~ s/(.*):://){
|
|---|
| 321 | $this_package = $1;
|
|---|
| 322 | } else {
|
|---|
| 323 | $this_package = $def_package;
|
|---|
| 324 | }
|
|---|
| 325 | my $fq_subname = "$this_package\::$subname";
|
|---|
| 326 | $package{$fq_subname} = $this_package;
|
|---|
| 327 | $proto{$fq_subname} = $proto;
|
|---|
| 328 | push(@subnames, $fq_subname);
|
|---|
| 329 | my($lname, $sname) = ($subname, substr($subname,0,$maxflen-3));
|
|---|
| 330 | $modpname = _modpname($this_package);
|
|---|
| 331 | my($modnamedir) = catdir($autodir, $modpname);
|
|---|
| 332 | mkpath($modnamedir,0,0777);
|
|---|
| 333 | my($lpath) = catfile($modnamedir, "$lname.al");
|
|---|
| 334 | my($spath) = catfile($modnamedir, "$sname.al");
|
|---|
| 335 | my $path;
|
|---|
| 336 |
|
|---|
| 337 | if (!$Is83 and open($out, ">$lpath")){
|
|---|
| 338 | $path=$lpath;
|
|---|
| 339 | print " writing $lpath\n" if ($Verbose>=2);
|
|---|
| 340 | } else {
|
|---|
| 341 | open($out, ">$spath") or die "Can't create $spath: $!\n";
|
|---|
| 342 | $path=$spath;
|
|---|
| 343 | print " writing $spath (with truncated name)\n"
|
|---|
| 344 | if ($Verbose>=1);
|
|---|
| 345 | }
|
|---|
| 346 | push(@outfiles, $path);
|
|---|
| 347 | my $lineno = $fnr - @cache;
|
|---|
| 348 | print $out <<EOT;
|
|---|
| 349 | # NOTE: Derived from $filename.
|
|---|
| 350 | # Changes made here will be lost when autosplit is run again.
|
|---|
| 351 | # See AutoSplit.pm.
|
|---|
| 352 | package $this_package;
|
|---|
| 353 |
|
|---|
| 354 | #line $lineno "$filename (autosplit into $path)"
|
|---|
| 355 | EOT
|
|---|
| 356 | print $out @cache;
|
|---|
| 357 | @cache = ();
|
|---|
| 358 | $caching = 0;
|
|---|
| 359 | }
|
|---|
| 360 | if($caching) {
|
|---|
| 361 | push(@cache, $_) if @cache || /\S/;
|
|---|
| 362 | } else {
|
|---|
| 363 | print $out $_;
|
|---|
| 364 | }
|
|---|
| 365 | if(/^\}/) {
|
|---|
| 366 | if($caching) {
|
|---|
| 367 | print $out @cache;
|
|---|
| 368 | @cache = ();
|
|---|
| 369 | }
|
|---|
| 370 | print $out "\n";
|
|---|
| 371 | $caching = 1;
|
|---|
| 372 | }
|
|---|
| 373 | $last_package = $this_package if defined $this_package;
|
|---|
| 374 | }
|
|---|
| 375 | if ($subname) {
|
|---|
| 376 | print $out @cache,"1;\n# end of $last_package\::$subname\n";
|
|---|
| 377 | close($out);
|
|---|
| 378 | }
|
|---|
| 379 | close($in);
|
|---|
| 380 |
|
|---|
| 381 | if (!$keep){ # don't keep any obsolete *.al files in the directory
|
|---|
| 382 | my(%outfiles);
|
|---|
| 383 | # @outfiles{@outfiles} = @outfiles;
|
|---|
| 384 | # perl downcases all filenames on VMS (which upcases all filenames) so
|
|---|
| 385 | # we'd better downcase the sub name list too, or subs with upper case
|
|---|
| 386 | # letters in them will get their .al files deleted right after they're
|
|---|
| 387 | # created. (The mixed case sub name won't match the all-lowercase
|
|---|
| 388 | # filename, and so be cleaned up as a scrap file)
|
|---|
| 389 | if ($Is_VMS or $Is83) {
|
|---|
| 390 | %outfiles = map {lc($_) => lc($_) } @outfiles;
|
|---|
| 391 | } else {
|
|---|
| 392 | @outfiles{@outfiles} = @outfiles;
|
|---|
| 393 | }
|
|---|
| 394 | my(%outdirs,@outdirs);
|
|---|
| 395 | for (@outfiles) {
|
|---|
| 396 | $outdirs{File::Basename::dirname($_)}||=1;
|
|---|
| 397 | }
|
|---|
| 398 | for my $dir (keys %outdirs) {
|
|---|
| 399 | opendir(my $outdir,$dir);
|
|---|
| 400 | foreach (sort readdir($outdir)){
|
|---|
| 401 | next unless /\.al\z/;
|
|---|
| 402 | my($file) = catfile($dir, $_);
|
|---|
| 403 | $file = lc $file if $Is83 or $Is_VMS;
|
|---|
| 404 | next if $outfiles{$file};
|
|---|
| 405 | print " deleting $file\n" if ($Verbose>=2);
|
|---|
| 406 | my($deleted,$thistime); # catch all versions on VMS
|
|---|
| 407 | do { $deleted += ($thistime = unlink $file) } while ($thistime);
|
|---|
| 408 | carp "Unable to delete $file: $!" unless $deleted;
|
|---|
| 409 | }
|
|---|
| 410 | closedir($outdir);
|
|---|
| 411 | }
|
|---|
| 412 | }
|
|---|
| 413 |
|
|---|
| 414 | open(my $ts,">$al_idx_file") or
|
|---|
| 415 | carp "AutoSplit: unable to create timestamp file ($al_idx_file): $!";
|
|---|
| 416 | print $ts "# Index created by AutoSplit for $filename\n";
|
|---|
| 417 | print $ts "# (file acts as timestamp)\n";
|
|---|
| 418 | $last_package = '';
|
|---|
| 419 | for my $fqs (@subnames) {
|
|---|
| 420 | my($subname) = $fqs;
|
|---|
| 421 | $subname =~ s/.*:://;
|
|---|
| 422 | print $ts "package $package{$fqs};\n"
|
|---|
| 423 | unless $last_package eq $package{$fqs};
|
|---|
| 424 | print $ts "sub $subname $proto{$fqs};\n";
|
|---|
| 425 | $last_package = $package{$fqs};
|
|---|
| 426 | }
|
|---|
| 427 | print $ts "1;\n";
|
|---|
| 428 | close($ts);
|
|---|
| 429 |
|
|---|
| 430 | _check_unique($filename, $Maxlen, 1, @outfiles);
|
|---|
| 431 |
|
|---|
| 432 | @outfiles;
|
|---|
| 433 | }
|
|---|
| 434 |
|
|---|
| 435 | sub _modpname ($) {
|
|---|
| 436 | my($package) = @_;
|
|---|
| 437 | my $modpname = $package;
|
|---|
| 438 | if ($^O eq 'MSWin32') {
|
|---|
| 439 | $modpname =~ s#::#\\#g;
|
|---|
| 440 | } else {
|
|---|
| 441 | my @modpnames = ();
|
|---|
| 442 | while ($modpname =~ m#(.*?[^:])::([^:].*)#) {
|
|---|
| 443 | push @modpnames, $1;
|
|---|
| 444 | $modpname = $2;
|
|---|
| 445 | }
|
|---|
| 446 | $modpname = catfile(@modpnames, $modpname);
|
|---|
| 447 | }
|
|---|
| 448 | if ($Is_VMS) {
|
|---|
| 449 | $modpname = VMS::Filespec::unixify($modpname); # may have dirs
|
|---|
| 450 | }
|
|---|
| 451 | $modpname;
|
|---|
| 452 | }
|
|---|
| 453 |
|
|---|
| 454 | sub _check_unique {
|
|---|
| 455 | my($filename, $maxlen, $warn, @outfiles) = @_;
|
|---|
| 456 | my(%notuniq) = ();
|
|---|
| 457 | my(%shorts) = ();
|
|---|
| 458 | my(@toolong) = grep(
|
|---|
| 459 | length(File::Basename::basename($_))
|
|---|
| 460 | > $maxlen,
|
|---|
| 461 | @outfiles
|
|---|
| 462 | );
|
|---|
| 463 |
|
|---|
| 464 | foreach (@toolong){
|
|---|
| 465 | my($dir) = File::Basename::dirname($_);
|
|---|
| 466 | my($file) = File::Basename::basename($_);
|
|---|
| 467 | my($trunc) = substr($file,0,$maxlen);
|
|---|
| 468 | $notuniq{$dir}{$trunc} = 1 if $shorts{$dir}{$trunc};
|
|---|
| 469 | $shorts{$dir}{$trunc} = $shorts{$dir}{$trunc} ?
|
|---|
| 470 | "$shorts{$dir}{$trunc}, $file" : $file;
|
|---|
| 471 | }
|
|---|
| 472 | if (%notuniq && $warn){
|
|---|
| 473 | print "$filename: some names are not unique when " .
|
|---|
| 474 | "truncated to $maxlen characters:\n";
|
|---|
| 475 | foreach my $dir (sort keys %notuniq){
|
|---|
| 476 | print " directory $dir:\n";
|
|---|
| 477 | foreach my $trunc (sort keys %{$notuniq{$dir}}) {
|
|---|
| 478 | print " $shorts{$dir}{$trunc} truncate to $trunc\n";
|
|---|
| 479 | }
|
|---|
| 480 | }
|
|---|
| 481 | }
|
|---|
| 482 | }
|
|---|
| 483 |
|
|---|
| 484 | 1;
|
|---|
| 485 | __END__
|
|---|
| 486 |
|
|---|
| 487 | # test functions so AutoSplit.pm can be applied to itself:
|
|---|
| 488 | sub test1 ($) { "test 1\n"; }
|
|---|
| 489 | sub test2 ($$) { "test 2\n"; }
|
|---|
| 490 | sub test3 ($$$) { "test 3\n"; }
|
|---|
| 491 | sub testtesttesttest4_1 { "test 4\n"; }
|
|---|
| 492 | sub testtesttesttest4_2 { "duplicate test 4\n"; }
|
|---|
| 493 | sub Just::Another::test5 { "another test 5\n"; }
|
|---|
| 494 | sub test6 { return join ":", __FILE__,__LINE__; }
|
|---|
| 495 | package Yet::Another::AutoSplit;
|
|---|
| 496 | sub testtesttesttest4_1 ($) { "another test 4\n"; }
|
|---|
| 497 | sub testtesttesttest4_2 ($$) { "another duplicate test 4\n"; }
|
|---|
| 498 | package Yet::More::Attributes;
|
|---|
| 499 | sub test_a1 ($) : locked :locked { 1; }
|
|---|
| 500 | sub test_a2 : locked { 1; }
|
|---|
