X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/bcb69f8fed4dbdb9e0ec10955319e17b663eb538..cd7eb3e62572f14f52a7bced4e8aea946368ccff:/t/cvs.t diff --git a/t/cvs.t b/t/cvs.t index fdd26dbc8..2f9056b45 100755 --- a/t/cvs.t +++ b/t/cvs.t @@ -1,47 +1,569 @@ #!/usr/bin/perl use warnings; use strict; -use Test::More; +use Test::More; my $total_tests = 69; use IkiWiki; -my $dir; +my $default_test_methods = '^test_*'; +my @required_programs = qw( + cvs + cvsps +); +my @required_modules = qw( + File::chdir + File::MimeInfo + Date::Parse + File::Temp + File::ReadBackwards +); +my $dir = "/tmp/ikiwiki-test-cvs.$$"; -sub _determine_test_plan { +# TESTS FOR GENERAL META-BEHAVIOR - my $cvs=`which cvs`; chomp $cvs; - my $cvsps=`which cvsps`; chomp $cvsps; - return (skip_all => 'cvs or cvsps not available') - unless -x $cvs && -x $cvsps; +sub test_web_comments { + # how much of the web-edit workflow are we actually testing? + # because we want to test comments: + # - when the first comment for page.mdwn is added, and page/ is + # created to hold the comment, page/ isn't added to CVS control, + # so the comment isn't either + # - can't reproduce after chmod g+s ikiwiki.cgi (20120204) + # - side effect for moderated comments: after approval they + # show up normally AND are still pending, too + # - comments.pm treats rcs_commit_staged() as returning conflicts? +} + +sub test_chdir_magic { + # cvs.pm operations are always occurring inside $config{srcdir} + # other ikiwiki operations are occurring wherever, and are unaffected + # when are we bothering with "local $CWD" and when aren't we? + # after commit, presumably only with post-commit hook enabled: + #> Use of chdir('') or chdir(undef) as chdir() is deprecated at + #> /usr/pkg/lib/perl5/vendor_perl/5.14.0/File/chdir.pm line 45. +} + +sub test_cvs_info { + # inspect "Repository revision" (used in code) + # inspect "Sticky Options" (used in tests to verify existence of "-kb") +} + +sub test_cvs_run_cvs { + # extract the stdout-redirect thing + # - prove that it silences stdout + # - prove that stderr comes through just fine + # prove that when cvs exits nonzero (fail), function exits false + # prove that when cvs exits zero (success), function exits true + # always pass -f, just in case + # steal from git.pm: safe_git(), run_or_{die,cry,non} + # - open() instead of system() + # always call cvs_run_cvs(), don't ever run 'cvs' directly + # - for cvs_info(), make it respect wantarray +} + +sub test_cvs_run_cvsps { + # parameterize command like run_cvs() + # expose config vars for e.g. "--cvs-direct -z 30" + # always pass -x (unless proven otherwise) + # - but diff doesn't! optimization alert + # always pass -b HEAD (configurable like gitmaster_branch?) +} + +sub test_cvs_parse_cvsps { + # extract method from rcs_recentchanges + # document expected changeset format + # document expected changeset delimiter + # try: cvsps -q -x -p && ls | sort -rn | head -100 + # - benchmark against current impl (that uses File::ReadBackwards) +} + +sub test_cvs_parse_log_accum { + # add new, preferred method for rcs_recentchanges to use + # teach log_accum to record commits (into transient?) + # script cvsps to bootstrap (or replace?) commit history + # teach ikiwiki-makerepo to set up log_accum and commit_prep + # why are NetBSD commit mails unreliable? + # - is it working for CVS commits and failing for web commits? +} + +sub test_cvs_is_controlling { + # with no args: + # - if srcdir is in CVS, return true + # - else, return false + # with a dir arg: + # - if dir is in CVS, return true + # - else, return false + # with a file arg: + # - is there anything that wants the answer? if so, answer + # - else, die +} + + +# TESTS FOR GENERAL PLUGIN API CALLS + +sub test_checkconfig { + my $default_cvspath = 'ikiwiki'; + + undef $config{cvspath}; IkiWiki::checkconfig(); + is( + $config{cvspath}, $default_cvspath, + q{can provide default cvspath}, + ); + + $config{cvspath} = "/$default_cvspath/"; IkiWiki::checkconfig(); + is( + $config{cvspath}, $default_cvspath, + q{can set typical cvspath and strip well-meaning slashes}, + ); + + $config{cvspath} = "/$default_cvspath//subdir"; IkiWiki::checkconfig(); + is( + $config{cvspath}, "$default_cvspath/subdir", + q{can really sanitize cvspath as assumed by rcs_recentchanges}, + ); + + my $default_num_wrappers = @{$config{wrappers}}; + undef $config{cvs_wrapper}; IkiWiki::checkconfig(); + is( + @{$config{wrappers}}, $default_num_wrappers, + q{can start with no wrappers configured}, + ); + + $config{cvs_wrapper} = $config{cvsrepo} . "/CVSROOT/post-commit"; + IkiWiki::checkconfig(); + is( + @{$config{wrappers}}, ++$default_num_wrappers, + q{can add cvs_wrapper}, + ); + + undef $config{cvs_wrapper}; + $config{cvspath} = $default_cvspath; + IkiWiki::checkconfig(); +} + +sub test_getsetup { + # anything worth testing? +} + +sub test_genwrapper { + # testable directly? affects rcs_add, but are we exercising this? +} + + +# TESTS FOR VCS PLUGIN API CALLS - foreach my $module ('File::ReadBackwards', 'File::MimeInfo') { +sub test_rcs_update { + # can it assume we're under CVS control? or must it check? + # anything else worth testing? +} + +sub test_rcs_prepedit { + # can it assume we're under CVS control? or must it check? + # for existing file, returns latest revision in repo + # - what's this used for? should it return latest revision in checkout? + # for new file, returns empty string + + # netbsd web log says "could not open lock file" + # XXX does this work right? + # how about with un-added dirs in the srcdir? + # how about with cvsps.core lying around? +} + +sub test_rcs_commit { + # can it assume we're under CVS control? or must it check? + # if someone else changed the page since rcs_prepedit was called: + # - try to merge into our working copy + # - if merge succeeds, proceed to commit + # - else, return page content with the conflict markers in it + # commit: + # - if success, return undef + # - else, revert + return content with the conflict markers in it + # git.pm receives "session" param -- useful here? + # web commits start with "web commit {by,from} " + # seeing File::chdir errors on commit? + + # XXX commit can fail due to "could not open lock file" +} + +sub test_rcs_commit_staged { + # if commit succeeds, return undef + # else, warn and return error message (really? or just non-undef?) +} + +sub test_rcs_add { + my @changes = IkiWiki::rcs_recentchanges(3); + is_total_number_of_changes(\@changes, 0); + + my $message = "add a top-level ASCII (non-UTF-8) page via VCS API"; + my $file = q{test0.mdwn}; + add_and_commit($file, $message, qq{# \$Id\$\n* some plain ASCII text}); + is_newly_added($file); + is_in_keyword_substitution_mode($file, q{-kkv}); + like( + readfile($config{srcdir} . "/$file"), + qr/^# \$Id: $file,v 1.1 .+\$$/m, + q{can expand RCS Id keyword}, + ); + @changes = IkiWiki::rcs_recentchanges(3); + is_total_number_of_changes(\@changes, 1); + is_most_recent_change(\@changes, stripext($file), $message); + + $message = "add a top-level dir via VCS API"; + my $dir1 = q{test3}; + can_mkdir($dir1); + IkiWiki::rcs_add($dir1); + # XXX test that the wrapper hangs here without our genwrapper() + # XXX test that the wrapper doesn't hang here with it + @changes = IkiWiki::rcs_recentchanges(3); + is_total_number_of_changes(\@changes, 1); # despite the dir add + IkiWiki::rcs_commit( + file => $dir1, + message => $message, + token => "oom", + ); + @changes = IkiWiki::rcs_recentchanges(3); + is_total_number_of_changes(\@changes, 1); # dirs aren't tracked + + $message = "add a non-ASCII (UTF-8) text file in an un-added dir"; + can_mkdir($_) for (qw(test4 test4/test5)); + $file = q{test4/test5/test1.mdwn}; + add_and_commit($file, $message, readfile("t/test1.mdwn")); + is_newly_added($file); + is_in_keyword_substitution_mode($file, q{-kkv}); + @changes = IkiWiki::rcs_recentchanges(3); + is_total_number_of_changes(\@changes, 2); + is_most_recent_change(\@changes, stripext($file), $message); + + $message = "add a binary file in an un-added dir, and commit_staged"; + can_mkdir(q{test6}); + $file = q{test6/test7.ico}; + my $bindata_in = readfile("doc/favicon.ico", 1); + my $bindata_out = sub { readfile($config{srcdir} . "/$file", 1) }; + writefile($file, $config{srcdir}, $bindata_in, 1); + is(&$bindata_out(), $bindata_in, q{binary files match before commit}); + IkiWiki::rcs_add($file); + IkiWiki::rcs_commit_staged(message => $message); + is_newly_added($file); + is_in_keyword_substitution_mode($file, q{-kb}); + is(&$bindata_out(), $bindata_in, q{binary files match after commit}); + @changes = IkiWiki::rcs_recentchanges(3); + is_total_number_of_changes(\@changes, 3); + is_most_recent_change(\@changes, $file, $message); + ok( + unlink($config{srcdir} . "/$file"), + q{can remove file in order to re-fetch it from repo}, + ); + ok(! -e $config{srcdir} . "/$file", q{really removed file}); + IkiWiki::rcs_update(); + is(&$bindata_out(), $bindata_in, q{binary files match after re-fetch}); + + $message = "add a UTF-8 and a binary file in different dirs"; + my $file1 = "test8/test9.mdwn"; + my $file2 = "test10/test11.ico"; + can_mkdir($_) for (qw(test8 test10)); + writefile($file1, $config{srcdir}, readfile('t/test2.mdwn')); + writefile($file2, $config{srcdir}, $bindata_in, 1); + IkiWiki::rcs_add($_) for ($file1, $file2); + IkiWiki::rcs_commit_staged(message => $message); + is_newly_added($_) for ($file1, $file2); + is_in_keyword_substitution_mode($file1, q{-kkv}); + is_in_keyword_substitution_mode($file2, q{-kb}); + @changes = IkiWiki::rcs_recentchanges(3); + is_total_number_of_changes(\@changes, 3); + @changes = IkiWiki::rcs_recentchanges(4); + is_total_number_of_changes(\@changes, 4); + # XXX test for both files in the commit, and no other files + is_most_recent_change(\@changes, $file2, $message); + + $message = "remove the UTF-8 and binary files we just added"; + IkiWiki::rcs_remove($_) for ($file1, $file2); + IkiWiki::rcs_commit_staged(message => $message); + ok(-d "$config{srcdir}/test8", q{empty dir not pruned (1)}); + @changes = IkiWiki::rcs_recentchanges(11); + ok(-d "$config{srcdir}/test8", q{empty dir not pruned (2)}); + is_total_number_of_changes(\@changes, 5); + # XXX test for both files in the commit, and no other files + is_most_recent_change(\@changes, $file2, $message); + + $message = "re-add UTF-8 and binary files with names swapped"; + writefile($file2, $config{srcdir}, readfile('t/test2.mdwn')); + writefile($file1, $config{srcdir}, $bindata_in, 1); + IkiWiki::rcs_add($_) for ($file1, $file2); + IkiWiki::rcs_commit_staged(message => $message); + isnt_newly_added($_) for ($file1, $file2); + is_in_keyword_substitution_mode($file2, q{-kkv}); + is_in_keyword_substitution_mode($file1, q{-kb}); + @changes = IkiWiki::rcs_recentchanges(11); + is_total_number_of_changes(\@changes, 6); + # XXX test for both files in the commit, and no other files + is_most_recent_change(\@changes, $file2, $message); + + # prevent web edits from attempting to create .../CVS/foo.mdwn + # on case-insensitive filesystems, also prevent .../cvs/foo.mdwn + # unless your "CVS" is something else and we've made it configurable + # also want a pre-commit hook for this? + + # pre-commit hook: + # - lcase filenames + # - ? + + # can it assume we're under CVS control? or must it check? +} + +sub test_rcs_remove { + # can it assume we're under CVS control? or must it check? + # remove a top-level file + # - rcs_commit + # - inspect recentchanges: one new change, file removed + # remove two files (in different dirs) + # - rcs_commit_staged + # - inspect recentchanges: one new change, both files removed +} + +sub test_rcs_rename { + # can it assume we're under CVS control? or must it check? + # rename a file in the same dir + # - rcs_commit_staged + # - inspect recentchanges: one new change, one file removed, one added + # rename a file into a different dir + # - rcs_commit_staged + # - inspect recentchanges: one new change, one file removed, one added + # rename a file into a not-yet-existing dir + # - rcs_commit_staged + # - inspect recentchanges: one new change, one file removed, one added + # is it safe to use "mv"? what if $dest is somehow outside the wiki? +} + +sub test_rcs_recentchanges { + my @changes = IkiWiki::rcs_recentchanges(3); + is_total_number_of_changes(\@changes, 0); + + my $message = "Add a page via CVS directly"; + my $file = q{test2.mdwn}; + writefile($file, $config{srcdir}, readfile(q{t/test2.mdwn})); + system "cd $config{srcdir}" + . " && cvs add $file >/dev/null 2>&1"; + system "cd $config{srcdir}" + . " && cvs commit -m \"$message\" $file >/dev/null"; + + @changes = IkiWiki::rcs_recentchanges(3); + is_total_number_of_changes(\@changes, 1); + is_most_recent_change(\@changes, stripext($file), $message); + + # CVS commits run ikiwiki once for every committed file (!) + # - commit_prep alone should fix this + # CVS multi-dir commits show only the first dir in recentchanges + # - commit_prep might also fix this? + # CVS post-commit hook is amped off to avoid locking against itself + # - commit_prep probably doesn't fix this... but maybe? + # can it assume we're under CVS control? or must it check? + # don't worry whether we're called with a number (we always are) + # other rcs tests already inspect much of the returned structure + # CVS commits say "cvs" and get the right committer + # web commits say "web" and get the right committer + # - and don't start with "web commit {by,from} " + # "nickname" -- can we ever meaningfully set this? + + # prefer log_accum, then cvsps, else die + # run the high-level recentchanges tests 2x (once for each method) + # - including in other test subs that check recentchanges? +} + +sub test_rcs_diff { + my @changes = IkiWiki::rcs_recentchanges(3); + is_total_number_of_changes(\@changes, 0); + + my $message = "add a UTF-8 and an ASCII file in different dirs"; + my $file1 = "rcsdiff1/utf8.mdwn"; + my $file2 = "rcsdiff2/ascii.mdwn"; + my $contents2 = ''; $contents2 .= "$_. foo\n" for (1..11); + can_mkdir($_) for (qw(rcsdiff1 rcsdiff2)); + writefile($file1, $config{srcdir}, readfile('t/test2.mdwn')); + writefile($file2, $config{srcdir}, $contents2); + IkiWiki::rcs_add($_) for ($file1, $file2); + IkiWiki::rcs_commit_staged(message => $message); + + # XXX we rely on rcs_recentchanges() to be called first! + # XXX or else for no cvsps cache to exist yet... + # XXX because rcs_diff() doesn't pass -x (as an optimization) + @changes = IkiWiki::rcs_recentchanges(3); + is_total_number_of_changes(\@changes, 1); + + my $changeset = 1; + + my $maxlines = undef; + my $scalar_diffs = IkiWiki::rcs_diff($changeset, $maxlines); + like( + $scalar_diffs, + qr/^\+11\. foo$/m, + q{unbounded scalar diffs go all the way to 11}, + ); + my @array_diffs = IkiWiki::rcs_diff($changeset, $maxlines); + is( + $array_diffs[$#array_diffs], + "+11. foo\n", + q{unbounded array diffs go all the way to 11}, + ); + + $maxlines = 8; + $scalar_diffs = IkiWiki::rcs_diff($changeset, $maxlines); + unlike( + $scalar_diffs, + qr/^\+11\. foo$/m, + q{bounded scalar diffs don't go all the way to 11}, + ); + @array_diffs = IkiWiki::rcs_diff($changeset, $maxlines); + isnt( + $array_diffs[$#array_diffs], + "+11. foo\n", + q{bounded array diffs don't go all the way to 11}, + ); + is( + scalar @array_diffs, + $maxlines, + q{bounded array diffs contain expected maximum number of lines}, + ); + + # can it assume we're under CVS control? or must it check? +} + +sub test_rcs_getctime { + # can it assume we're under CVS control? or must it check? + # given a file, find its creation time, else return 0 + # first implement in the obvious way + # then cache +} + +sub test_rcs_getmtime { + # can it assume we're under CVS control? or must it check? + # given a file, find its modification time, else return 0 + # first implement in the obvious way + # then cache +} + +sub test_rcs_receive { + my $description = q{rcs_receive doesn't make sense for CVS}; + exists $IkiWiki::hooks{rcs}{rcs_receive} + ? fail($description) + : pass($description); +} + +sub test_rcs_preprevert { + # can it assume we're under CVS control? or must it check? + # given a patchset number, return structure describing what'd happen: + # - see doc/plugins/write.mdwn:rcs_receive() + # don't forget about attachments +} + +sub test_rcs_revert { + # test rcs_recentchanges() real darn well + # extract read-backwards patchset parser from rcs_recentchanges() + # recentchanges: given max, return list of changeset/files/etc. + # revert: given changeset ID, return list of file/rev/action + # + # can it assume we're under CVS control? or must it check? + # given a patchset number, stage the revert for rcs_commit_staged() + # if commit succeeds, return undef + # else, warn and return error message (really? or just non-undef?) +} + +sub main { + my $test_methods = defined $ENV{TEST_METHOD} + ? $ENV{TEST_METHOD} + : $default_test_methods; + + _startup($test_methods eq $default_test_methods); + _runtests(_get_matching_test_subs($test_methods)); + _shutdown($test_methods eq $default_test_methods); +} + +main(); + + +# INTERNAL SUPPORT ROUTINES + +sub _plan_for_test_more { + my $can_plan = shift; + + foreach my $program (@required_programs) { + my $program_path = `which $program`; + chomp $program_path; + return plan(skip_all => "$program not available") + unless -x $program_path; + } + + foreach my $module (@required_modules) { eval qq{use $module}; - if ($@) { - return (skip_all => "$module not available"); - } + return plan(skip_all => "$module not available") + if $@; } - return (tests => 11); + return plan(skip_all => "can't create $dir: $!") + unless mkdir($dir); + return plan(skip_all => "can't remove $dir: $!") + unless rmdir($dir); + + return unless $can_plan; + + return plan(tests => $total_tests); } +# http://stackoverflow.com/questions/607282/whats-the-best-way-to-discover-all-subroutines-a-perl-module-has + +use B qw/svref_2object/; + +sub in_package { + my ($coderef, $package) = @_; + my $cv = svref_2object($coderef); + return if not $cv->isa('B::CV') or $cv->GV->isa('B::SPECIAL'); + return $cv->GV->STASH->NAME eq $package; +} + +sub list_module { + my $module = shift; + no strict 'refs'; + return grep { + defined &{"$module\::$_"} and in_package(\&{*$_}, $module) + } keys %{"$module\::"}; +} + + +# support for xUnit-style testing, a la Test::Class + sub _startup { - _mktempdir(); - _generate_minimal_config(); - _create_test_repo(); + my $can_plan = shift; + _plan_for_test_more($can_plan); + _generate_test_config(); } sub _shutdown { + my $had_plan = shift; + done_testing() unless $had_plan; +} + +sub _setup { + _generate_test_repo(); +} + +sub _teardown { system "rm -rf $dir"; } -sub _mktempdir { - $dir="/tmp/ikiwiki-test-cvs.$$"; - if (! mkdir($dir)) { - die $@; +sub _runtests { + my @coderefs = (@_); + for (@coderefs) { + _setup(); + $_->(); + _teardown(); } } -sub _generate_minimal_config { - %config=IkiWiki::defaultconfig(); +sub _get_matching_test_subs { + my $re = shift; + no strict 'refs'; + return map { \&{*$_} } grep { /$re/ } sort(list_module('main')); +} + +sub _generate_test_config { + %config = IkiWiki::defaultconfig(); $config{rcs} = "cvs"; $config{srcdir} = "$dir/src"; $config{cvsrepo} = "$dir/repo"; @@ -50,59 +572,94 @@ sub _generate_minimal_config { IkiWiki::checkconfig(); } -sub _create_test_repo { - my $cvsrepo = "$dir/repo"; +sub _generate_test_repo { + die "can't create $dir: $!" + unless mkdir($dir); - system "cvs -d $cvsrepo init >/dev/null"; - system "mkdir $dir/ikiwiki >/dev/null"; - system "cd $dir/ikiwiki && cvs -d $cvsrepo import -m import ikiwiki VENDOR RELEASE >/dev/null"; - system "rm -rf $dir/ikiwiki >/dev/null"; - system "cvs -d $cvsrepo co -d $config{srcdir} ikiwiki >/dev/null"; + my $cvs = "cvs -d $config{cvsrepo}"; + my $dn = ">/dev/null"; + system "$cvs init $dn"; + system "mkdir $dir/$config{cvspath} $dn"; + system "cd $dir/$config{cvspath} && " + . "$cvs import -m import $config{cvspath} VENDOR RELEASE $dn"; + system "rm -rf $dir/$config{cvspath} $dn"; + system "$cvs co -d $config{srcdir} $config{cvspath} $dn"; } -sub test_web_commit { - my $test1 = readfile("t/test1.mdwn"); - writefile('test1.mdwn', $config{srcdir}, $test1); - IkiWiki::rcs_add("test1.mdwn"); +sub add_and_commit { + my ($file, $message, $contents) = @_; + writefile($file, $config{srcdir}, $contents); + IkiWiki::rcs_add($file); IkiWiki::rcs_commit( - files => "test1.mdwn", - message => "Added the first page", - token => "moo" + file => $file, + message => $message, + token => "moo", ); +} - my @changes = IkiWiki::rcs_recentchanges(3); - - is($#changes, 0); - is($changes[0]{message}[0]{"line"}, "Added the first page"); - is($changes[0]{pages}[0]{"page"}, "test1"); +sub can_mkdir { + my $dir = shift; + ok( + mkdir($config{srcdir} . "/$dir"), + qq{can mkdir $dir}, + ); } -sub test_manual_commit { - my $message = "Added the second page"; +sub is_newly_added { _newly_added_or_not(shift, 1) } +sub isnt_newly_added { _newly_added_or_not(shift, 0) } +sub _newly_added_or_not { + my ($file, $expected_new) = @_; + my ($func, $word); + if ($expected_new) { + $func = \&Test::More::is; + $word = q{is}; + } + else { + $func = \&Test::More::isnt; + $word = q{isn't}; + } + $func->( + IkiWiki::Plugin::cvs::cvs_info("Repository revision", $file), + '1.1', + qq{$file $word newly added to CVS}, + ); +} - my $test2 = readfile("t/test2.mdwn"); - writefile('test2.mdwn', $config{srcdir}, $test2); - system "cd $config{srcdir} && cvs add test2.mdwn >/dev/null 2>&1"; - system "cd $config{srcdir} && cvs commit -m \"$message\" test2.mdwn >/dev/null"; +sub is_in_keyword_substitution_mode { + my ($file, $mode) = @_; + is( + IkiWiki::Plugin::cvs::cvs_info("Sticky Options", $file), + $mode, + qq{$file is in CVS with expected keyword substitution mode}, + ); +} - my @changes = IkiWiki::rcs_recentchanges(3); - is($#changes, 1); - is($changes[0]{message}[0]{"line"}, $message); - is($changes[0]{pages}[0]{"page"}, "test2"); - is($changes[1]{pages}[0]{"page"}, "test1"); +sub is_total_number_of_changes { + my ($changes, $expected_total) = @_; + is( + $#{$changes}, + $expected_total - 1, + qq{total commits == $expected_total}, + ); +} - # extra slashes in the path shouldn't break things - $config{cvspath} = "/ikiwiki//"; - IkiWiki::checkconfig(); - @changes = IkiWiki::rcs_recentchanges(3); - is($#changes, 1); - is($changes[0]{message}[0]{"line"}, $message); - is($changes[0]{pages}[0]{"page"}, "test2"); - is($changes[1]{pages}[0]{"page"}, "test1"); +sub is_most_recent_change { + my ($changes, $page, $message) = @_; + is( + $changes->[0]{message}[0]{"line"}, + $message, + q{most recent commit's first message line matches}, + ); + is( + $changes->[0]{pages}[0]{"page"}, + $page, + q{most recent commit's first pagename matches}, + ); } -plan(_determine_test_plan()); -_startup(); -test_web_commit(); -test_manual_commit(); -_shutdown(); +sub stripext { + my ($file, $extension) = @_; + $extension = '\..+?' unless defined $extension; + $file =~ s|$extension$||g; + return $file; +}