From 61717661e6ffc8aa4d0928d04edafa0961e6aadb Mon Sep 17 00:00:00 2001 From: Matthew Ogilvie Date: Sat, 13 Oct 2012 23:42:31 -0600 Subject: [PATCH] cvsserver: support -r and sticky tags for most operations - Split off prepDirForOutput for "update" and "commit". Some low level protocol details were changed to more closely resemble CVS even in non-tagged cases. Hopefully it still works with finicky clients like Eclipse. - Substantial changes to "diff". The output is now closer to standard CVS (including exit status), and can be used as a patch, but there are still a number of differences compared to CVS. - Tweaks to "add", "remove", "status", and "commit". - FUTURE: CVS revision numbers for branches simply encode git commit IDs in a way that resembles CVS revision numbers, dropping all normal CVS structural relations between different revision numbers. - FUTURE: "log" doesn't try to work properly at all with branches and tags. - FUTURE: "annotate" probably doesn't work with branches or tags either (untested)? Signed-off-by: Matthew Ogilvie Signed-off-by: Junio C Hamano --- git-cvsserver.perl | 721 ++++++++++++++++++++++++++++++++------------- 1 file changed, 514 insertions(+), 207 deletions(-) diff --git a/git-cvsserver.perl b/git-cvsserver.perl index 5e558d137b..3679074983 100755 --- a/git-cvsserver.perl +++ b/git-cvsserver.perl @@ -611,7 +611,10 @@ sub req_add { $filename = filecleanup($filename); - my $meta = $updater->getmeta($filename); + # no -r, -A, or -D with add + my $stickyInfo = resolveStickyInfo($filename); + + my $meta = $updater->getmeta($filename,$stickyInfo); my $wrev = revparse($filename); if ($wrev && $meta && ($wrev=~/^-/)) @@ -634,8 +637,10 @@ sub req_add # this is an "entries" line my $kopts = kopts_from_path($filename,"sha1",$meta->{filehash}); - $log->debug("/$filepart/$meta->{revision}//$kopts/"); - print "/$filepart/$meta->{revision}//$kopts/\n"; + my $entryLine = "/$filepart/$meta->{revision}//$kopts/"; + $entryLine .= getStickyTagOrDate($stickyInfo); + $log->debug($entryLine); + print "$entryLine\n"; # permissions $log->debug("SEND : u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}"); print "u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}\n"; @@ -666,7 +671,8 @@ sub req_add print "$filename\n"; my $kopts = kopts_from_path($filename,"file", $state->{entries}{$filename}{modified_filename}); - print "/$filepart/0//$kopts/\n"; + print "/$filepart/0//$kopts/" . + getStickyTagOrDate($stickyInfo) . "\n"; my $requestedKopts = $state->{opt}{k}; if(defined($requestedKopts)) @@ -734,7 +740,10 @@ sub req_remove next; } - my $meta = $updater->getmeta($filename); + # only from entries + my $stickyInfo = resolveStickyInfo($filename); + + my $meta = $updater->getmeta($filename,$stickyInfo); my $wrev = revparse($filename); unless ( defined ( $wrev ) ) @@ -764,7 +773,7 @@ sub req_remove print "Checked-in $dirpart\n"; print "$filename\n"; my $kopts = kopts_from_path($filename,"sha1",$meta->{filehash}); - print "/$filepart/-$wrev//$kopts/\n"; + print "/$filepart/-$wrev//$kopts/" . getStickyTagOrDate($stickyInfo) . "\n"; $rmcount++; } @@ -944,6 +953,9 @@ sub req_co return 1; } + my $stickyInfo = { 'tag' => $state->{opt}{r}, + 'date' => $state->{opt}{D} }; + my $module = $state->{args}[0]; $state->{module} = $module; my $checkout_path = $module; @@ -961,64 +973,32 @@ sub req_co my $updater = GITCVS::updater->new($state->{CVSROOT}, $module, $log); $updater->update(); + my $headHash; + if( defined($stickyInfo) && defined($stickyInfo->{tag}) ) + { + $headHash = $updater->lookupCommitRef($stickyInfo->{tag}); + if( !defined($headHash) ) + { + print "error 1 no such tag `$stickyInfo->{tag}'\n"; + cleanupWorkTree(); + exit; + } + } + $checkout_path =~ s|/$||; # get rid of trailing slashes - # Eclipse seems to need the Clear-sticky command - # to prepare the 'Entries' file for the new directory. - print "Clear-sticky $checkout_path/\n"; - print $state->{CVSROOT} . "/$module/\n"; - print "Clear-static-directory $checkout_path/\n"; - print $state->{CVSROOT} . "/$module/\n"; - print "Clear-sticky $checkout_path/\n"; # yes, twice - print $state->{CVSROOT} . "/$module/\n"; - print "Template $checkout_path/\n"; - print $state->{CVSROOT} . "/$module/\n"; - print "0\n"; - - # instruct the client that we're checking out to $checkout_path - print "E cvs checkout: Updating $checkout_path\n"; - my %seendirs = (); my $lastdir =''; - # recursive - sub prepdir { - my ($dir, $repodir, $remotedir, $seendirs) = @_; - my $parent = dirname($dir); - $dir =~ s|/+$||; - $repodir =~ s|/+$||; - $remotedir =~ s|/+$||; - $parent =~ s|/+$||; - $log->debug("announcedir $dir, $repodir, $remotedir" ); + prepDirForOutput( + ".", + $state->{CVSROOT} . "/$module", + $checkout_path, + \%seendirs, + 'checkout', + $state->{dirArgs} ); - if ($parent eq '.' || $parent eq './') { - $parent = ''; - } - # recurse to announce unseen parents first - if (length($parent) && !exists($seendirs->{$parent})) { - prepdir($parent, $repodir, $remotedir, $seendirs); - } - # Announce that we are going to modify at the parent level - if ($parent) { - print "E cvs checkout: Updating $remotedir/$parent\n"; - } else { - print "E cvs checkout: Updating $remotedir\n"; - } - print "Clear-sticky $remotedir/$parent/\n"; - print "$repodir/$parent/\n"; - - print "Clear-static-directory $remotedir/$dir/\n"; - print "$repodir/$dir/\n"; - print "Clear-sticky $remotedir/$parent/\n"; # yes, twice - print "$repodir/$parent/\n"; - print "Template $remotedir/$dir/\n"; - print "$repodir/$dir/\n"; - print "0\n"; - - $seendirs->{$dir} = 1; - } - - foreach my $git ( @{$updater->gethead} ) + foreach my $git ( @{$updater->getAnyHead($headHash)} ) { # Don't want to check out deleted files next if ( $git->{filehash} eq "deleted" ); @@ -1026,16 +1006,13 @@ sub req_co my $fullName = $git->{name}; ( $git->{name}, $git->{dir} ) = filenamesplit($git->{name}); - if (length($git->{dir}) && $git->{dir} ne './' - && $git->{dir} ne $lastdir ) { - unless (exists($seendirs{$git->{dir}})) { - prepdir($git->{dir}, $state->{CVSROOT} . "/$module/", - $checkout_path, \%seendirs); - $lastdir = $git->{dir}; - $seendirs{$git->{dir}} = 1; - } - print "E cvs checkout: Updating /$checkout_path/$git->{dir}\n"; - } + unless (exists($seendirs{$git->{dir}})) { + prepDirForOutput($git->{dir}, $state->{CVSROOT} . "/$module/", + $checkout_path, \%seendirs, 'checkout', + $state->{dirArgs} ); + $lastdir = $git->{dir}; + $seendirs{$git->{dir}} = 1; + } # modification time of this file print "Mod-time $git->{modified}\n"; @@ -1055,7 +1032,8 @@ sub req_co # this is an "entries" line my $kopts = kopts_from_path($fullName,"sha1",$git->{filehash}); - print "/$git->{name}/$git->{revision}//$kopts/\n"; + print "/$git->{name}/$git->{revision}//$kopts/" . + getStickyTagOrDate($stickyInfo) . "\n"; # permissions print "u=$git->{mode},g=$git->{mode},o=$git->{mode}\n"; @@ -1068,6 +1046,119 @@ sub req_co statecleanup(); } +# used by req_co and req_update to set up directories for files +# recursively handles parents +sub prepDirForOutput +{ + my ($dir, $repodir, $remotedir, $seendirs, $request, $dirArgs) = @_; + + my $parent = dirname($dir); + $dir =~ s|/+$||; + $repodir =~ s|/+$||; + $remotedir =~ s|/+$||; + $parent =~ s|/+$||; + + if ($parent eq '.' || $parent eq './') + { + $parent = ''; + } + # recurse to announce unseen parents first + if( length($parent) && + !exists($seendirs->{$parent}) && + ( $request eq "checkout" || + exists($dirArgs->{$parent}) ) ) + { + prepDirForOutput($parent, $repodir, $remotedir, + $seendirs, $request, $dirArgs); + } + # Announce that we are going to modify at the parent level + if ($dir eq '.' || $dir eq './') + { + $dir = ''; + } + if(exists($seendirs->{$dir})) + { + return; + } + $log->debug("announcedir $dir, $repodir, $remotedir" ); + my($thisRemoteDir,$thisRepoDir); + if ($dir ne "") + { + $thisRepoDir="$repodir/$dir"; + if($remotedir eq ".") + { + $thisRemoteDir=$dir; + } + else + { + $thisRemoteDir="$remotedir/$dir"; + } + } + else + { + $thisRepoDir=$repodir; + $thisRemoteDir=$remotedir; + } + unless ( $state->{globaloptions}{-Q} || $state->{globaloptions}{-q} ) + { + print "E cvs $request: Updating $thisRemoteDir\n"; + } + + my ($opt_r)=$state->{opt}{r}; + my $stickyInfo; + if(exists($state->{opt}{A})) + { + # $stickyInfo=undef; + } + elsif( defined($opt_r) && $opt_r ne "" ) + # || ( defined($state->{opt}{D}) && $state->{opt}{D} ne "" ) # TODO + { + $stickyInfo={ 'tag' => (defined($opt_r)?$opt_r:undef) }; + + # TODO: Convert -D value into the form 2011.04.10.04.46.57, + # similar to an entry line's sticky date, without the D prefix. + # It sometimes (always?) arrives as something more like + # '10 Apr 2011 04:46:57 -0000'... + # $stickyInfo={ 'date' => (defined($stickyDate)?$stickyDate:undef) }; + } + else + { + $stickyInfo=getDirStickyInfo($state->{prependdir} . $dir); + } + + my $stickyResponse; + if(defined($stickyInfo)) + { + $stickyResponse = "Set-sticky $thisRemoteDir/\n" . + "$thisRepoDir/\n" . + getStickyTagOrDate($stickyInfo) . "\n"; + } + else + { + $stickyResponse = "Clear-sticky $thisRemoteDir/\n" . + "$thisRepoDir/\n"; + } + + unless ( $state->{globaloptions}{-n} ) + { + print $stickyResponse; + + print "Clear-static-directory $thisRemoteDir/\n"; + print "$thisRepoDir/\n"; + print $stickyResponse; # yes, twice + print "Template $thisRemoteDir/\n"; + print "$thisRepoDir/\n"; + print "0\n"; + } + + $seendirs->{$dir} = 1; + + # FUTURE: This would more accurately emulate CVS by sending + # another copy of sticky after processing the files in that + # directory. Or intermediate: perhaps send all sticky's for + # $seendirs after after processing all files. +} + # update \n # Response expected: yes. Actually do a cvs update command. This uses any # previous Argument, Directory, Entry, or Modified requests, if they have @@ -1111,29 +1202,19 @@ sub req_update #$log->debug("update state : " . Dumper($state)); - my $last_dirname = "///"; + my($repoDir); + $repoDir=$state->{CVSROOT} . "/$state->{module}/$state->{prependdir}"; + + my %seendirs = (); # foreach file specified on the command line ... - foreach my $filename ( @{$state->{args}} ) + foreach my $argsFilename ( @{$state->{args}} ) { - $filename = filecleanup($filename); + my $filename; + $filename = filecleanup($argsFilename); $log->debug("Processing file $filename"); - unless ( $state->{globaloptions}{-Q} || $state->{globaloptions}{-q} ) - { - my $cur_dirname = dirname($filename); - if ( $cur_dirname ne $last_dirname ) - { - $last_dirname = $cur_dirname; - if ( $cur_dirname eq "" ) - { - $cur_dirname = "."; - } - print "E cvs update: Updating $cur_dirname\n"; - } - } - # if we have a -C we should pretend we never saw modified stuff if ( exists ( $state->{opt}{C} ) ) { @@ -1142,13 +1223,11 @@ sub req_update $state->{entries}{$filename}{unchanged} = 1; } - my $meta; - if ( defined($state->{opt}{r}) and $state->{opt}{r} =~ /^(1\.\d+)$/ ) - { - $meta = $updater->getmeta($filename, $1); - } else { - $meta = $updater->getmeta($filename); - } + my $stickyInfo = resolveStickyInfo($filename, + $state->{opt}{r}, + $state->{opt}{D}, + exists($state->{opt}{A})); + my $meta = $updater->getmeta($filename, $stickyInfo); # If -p was given, "print" the contents of the requested revision. if ( exists ( $state->{opt}{p} ) ) { @@ -1161,6 +1240,17 @@ sub req_update next; } + # Directories: + prepDirForOutput( + dirname($argsFilename), + $repoDir, + ".", + \%seendirs, + "update", + $state->{dirArgs} ); + + my $wrev = revparse($filename); + if ( ! defined $meta ) { $meta = { @@ -1168,16 +1258,23 @@ sub req_update revision => '0', filehash => 'added' }; + if($wrev ne "0") + { + $meta->{filehash}='deleted'; + } } my $oldmeta = $meta; - my $wrev = revparse($filename); - # If the working copy is an old revision, lets get that version too for comparison. - if ( defined($wrev) and $wrev ne $meta->{revision} ) + my $oldWrev=$wrev; + if(defined($oldWrev)) { - $oldmeta = $updater->getmeta($filename, $wrev); + $oldWrev=~s/^-//; + if($oldWrev ne $meta->{revision}) + { + $oldmeta = $updater->getmeta($filename, $oldWrev); + } } #$log->debug("Target revision is $meta->{revision}, current working revision is $wrev"); @@ -1195,6 +1292,7 @@ sub req_update if ( defined ( $wrev ) and defined($meta->{revision}) and $wrev eq $meta->{revision} + and $wrev ne "0" and defined($state->{entries}{$filename}{modified_hash}) and not exists ( $state->{opt}{C} ) ) { @@ -1205,7 +1303,7 @@ sub req_update next; } - if ( $meta->{filehash} eq "deleted" ) + if ( $meta->{filehash} eq "deleted" && $wrev ne "0" ) { # TODO: If it has been modified in the sandbox, error out # with the appropriate message, rather than deleting a modified @@ -1267,10 +1365,6 @@ sub req_update $log->debug("Updating existing file 'Update-existing $dirpart'"); } else { # instruct client we're sending a file to put in this path as a new file - print "Clear-static-directory $dirpart\n"; - print $state->{CVSROOT} . "/$state->{module}/$dirpart\n"; - print "Clear-sticky $dirpart\n"; - print $state->{CVSROOT} . "/$state->{module}/$dirpart\n"; $log->debug("Creating new file 'Created $dirpart'"); print "Created $dirpart\n"; @@ -1279,8 +1373,10 @@ sub req_update # this is an "entries" line my $kopts = kopts_from_path($filename,"sha1",$meta->{filehash}); - $log->debug("/$filepart/$meta->{revision}//$kopts/"); - print "/$filepart/$meta->{revision}//$kopts/\n"; + my $entriesLine = "/$filepart/$meta->{revision}//$kopts/"; + $entriesLine .= getStickyTagOrDate($stickyInfo); + $log->debug($entriesLine); + print "$entriesLine\n"; # permissions $log->debug("SEND : u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}"); @@ -1328,7 +1424,9 @@ sub req_update my $kopts = kopts_from_path("$dirpart/$filepart", "file",$mergedFile); $log->debug("/$filepart/$meta->{revision}//$kopts/"); - print "/$filepart/$meta->{revision}//$kopts/\n"; + my $entriesLine="/$filepart/$meta->{revision}//$kopts/"; + $entriesLine .= getStickyTagOrDate($stickyInfo); + print "$entriesLine\n"; } } elsif ( $return == 1 ) @@ -1344,7 +1442,9 @@ sub req_update print $state->{CVSROOT} . "/$state->{module}/$filename\n"; my $kopts = kopts_from_path("$dirpart/$filepart", "file",$mergedFile); - print "/$filepart/$meta->{revision}/+/$kopts/\n"; + my $entriesLine = "/$filepart/$meta->{revision}/+/$kopts/"; + $entriesLine .= getStickyTagOrDate($stickyInfo); + print "$entriesLine\n"; } } else @@ -1372,6 +1472,43 @@ sub req_update } + # prepDirForOutput() any other existing directories unless they already + # have the right sticky tag: + unless ( $state->{globaloptions}{n} ) + { + my $dir; + foreach $dir (keys(%{$state->{dirMap}})) + { + if( ! $seendirs{$dir} && + exists($state->{dirArgs}{$dir}) ) + { + my($oldTag); + $oldTag=$state->{dirMap}{$dir}{tagspec}; + + unless( ( exists($state->{opt}{A}) && + defined($oldTag) ) || + ( defined($state->{opt}{r}) && + ( !defined($oldTag) || + $state->{opt}{r} ne $oldTag ) ) ) + # TODO?: OR sticky dir is different... + { + next; + } + + prepDirForOutput( + $dir, + $repoDir, + ".", + \%seendirs, + 'update', + $state->{dirArgs} ); + } + + # TODO?: Consider sending a final duplicate Sticky response + # to more closely mimic real CVS. + } + } + print "ok\n"; } @@ -1404,23 +1541,11 @@ sub req_ci my $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log); $updater->update(); - # Remember where the head was at the beginning. - my $parenthash = `git show-ref -s refs/heads/$state->{module}`; - chomp $parenthash; - if ($parenthash !~ /^[0-9a-f]{40}$/) { - print "error 1 pserver cannot find the current HEAD of module"; - cleanupWorkTree(); - exit; - } - - setupWorkTree($parenthash); - - $log->info("Lockless commit start, basing commit on '$work->{workDir}', index file is '$work->{index}'"); - - $log->info("Created index '$work->{index}' for head $state->{module} - exit status $?"); - my @committedfiles = (); my %oldmeta; + my $stickyInfo; + my $branchRef; + my $parenthash; # foreach file specified on the command line ... foreach my $filename ( @{$state->{args}} ) @@ -1430,7 +1555,67 @@ sub req_ci next unless ( exists $state->{entries}{$filename}{modified_filename} or not $state->{entries}{$filename}{unchanged} ); - my $meta = $updater->getmeta($filename); + ##### + # Figure out which branch and parenthash we are committing + # to, and setup worktree: + + # should always come from entries: + my $fileStickyInfo = resolveStickyInfo($filename); + if( !defined($branchRef) ) + { + $stickyInfo = $fileStickyInfo; + if( defined($stickyInfo) && + ( defined($stickyInfo->{date}) || + !defined($stickyInfo->{tag}) ) ) + { + print "error 1 cannot commit with sticky date for file `$filename'\n"; + cleanupWorkTree(); + exit; + } + + $branchRef = "refs/heads/$state->{module}"; + if ( defined($stickyInfo) && defined($stickyInfo->{tag}) ) + { + $branchRef = "refs/heads/$stickyInfo->{tag}"; + } + + $parenthash = `git show-ref -s $branchRef`; + chomp $parenthash; + if ($parenthash !~ /^[0-9a-f]{40}$/) + { + if ( defined($stickyInfo) && defined($stickyInfo->{tag}) ) + { + print "error 1 sticky tag `$stickyInfo->{tag}' for file `$filename' is not a branch\n"; + } + else + { + print "error 1 pserver cannot find the current HEAD of module"; + } + cleanupWorkTree(); + exit; + } + + setupWorkTree($parenthash); + + $log->info("Lockless commit start, basing commit on '$work->{workDir}', index file is '$work->{index}'"); + + $log->info("Created index '$work->{index}' for head $state->{module} - exit status $?"); + } + elsif( !refHashEqual($stickyInfo,$fileStickyInfo) ) + { + #TODO: We could split the cvs commit into multiple + # git commits by distinct stickyTag values, but that + # is lowish priority. + print "error 1 Committing different files to different" + . " branches is not currently supported\n"; + cleanupWorkTree(); + exit; + } + + ##### + # Process this file: + + my $meta = $updater->getmeta($filename,$stickyInfo); $oldmeta{$filename} = $meta; my $wrev = revparse($filename); @@ -1532,7 +1717,7 @@ sub req_ci } ### Emulate git-receive-pack by running hooks/update - my @hook = ( $ENV{GIT_DIR}.'hooks/update', "refs/heads/$state->{module}", + my @hook = ( $ENV{GIT_DIR}.'hooks/update', $branchRef, $parenthash, $commithash ); if( -x $hook[0] ) { unless( system( @hook ) == 0 ) @@ -1546,7 +1731,7 @@ sub req_ci ### Update the ref if (system(qw(git update-ref -m), "cvsserver ci", - "refs/heads/$state->{module}", $commithash, $parenthash)) { + $branchRef, $commithash, $parenthash)) { $log->warn("update-ref for $state->{module} failed."); print "error 1 Cannot commit -- update first\n"; cleanupWorkTree(); @@ -1560,7 +1745,7 @@ sub req_ci local $SIG{PIPE} = sub { die 'pipe broke' }; - print $pipe "$parenthash $commithash refs/heads/$state->{module}\n"; + print $pipe "$parenthash $commithash $branchRef\n"; close $pipe || die "bad pipe: $! $?"; } @@ -1570,7 +1755,7 @@ sub req_ci ### Then hooks/post-update $hook = $ENV{GIT_DIR}.'hooks/post-update'; if (-x $hook) { - system($hook, "refs/heads/$state->{module}"); + system($hook, $branchRef); } # foreach file specified on the command line ... @@ -1578,7 +1763,7 @@ sub req_ci { $filename = filecleanup($filename); - my $meta = $updater->getmeta($filename); + my $meta = $updater->getmeta($filename,$stickyInfo); unless (defined $meta->{revision}) { $meta->{revision} = "1.1"; } @@ -1602,7 +1787,8 @@ sub req_ci print "Checked-in $dirpart\n"; print "$filename\n"; my $kopts = kopts_from_path($filename,"sha1",$meta->{filehash}); - print "/$filepart/$meta->{revision}//$kopts/\n"; + print "/$filepart/$meta->{revision}//$kopts/" . + getStickyTagOrDate($stickyInfo) . "\n"; } } @@ -1639,16 +1825,19 @@ sub req_status next; } - my $meta = $updater->getmeta($filename); - my $oldmeta = $meta; - my $wrev = revparse($filename); + my $stickyInfo = resolveStickyInfo($filename); + my $meta = $updater->getmeta($filename,$stickyInfo); + my $oldmeta = $meta; + # If the working copy is an old revision, lets get that # version too for comparison. if ( defined($wrev) and $wrev ne $meta->{revision} ) { - $oldmeta = $updater->getmeta($filename, $wrev); + my($rmRev)=$wrev; + $rmRev=~s/^-//; + $oldmeta = $updater->getmeta($filename, $rmRev); } # TODO : All possible statuses aren't yet implemented @@ -1691,6 +1880,7 @@ sub req_status # same revision but there are local changes if ( defined ( $wrev ) and defined($meta->{revision}) and $wrev eq $meta->{revision} and + $wrev ne "0" and $state->{entries}{$filename}{modified_filename} ) { $status ||= "Locally Modified"; @@ -1706,7 +1896,8 @@ sub req_status } if ( defined ( $state->{entries}{$filename}{revision} ) and - not defined ( $meta->{revision} ) ) + ( !defined($meta->{revision}) || + $meta->{revision} eq "0" ) ) { $status ||= "Locally Added"; } @@ -1802,98 +1993,133 @@ sub req_diff # be providing status on ... argsfromdir($updater); + my($foundDiff); + # foreach file specified on the command line ... - foreach my $filename ( @{$state->{args}} ) + foreach my $argFilename ( @{$state->{args}} ) { - $filename = filecleanup($filename); + my($filename) = filecleanup($argFilename); my ( $fh, $file1, $file2, $meta1, $meta2, $filediff ); my $wrev = revparse($filename); - # We need _something_ to diff against - next unless ( defined ( $wrev ) ); + # Priority for revision1: + # 1. First -r (missing file: check -N) + # 2. wrev from client's Entry line + # - missing line/file: check -N + # - "0": added file not committed (empty contents for rev1) + # - Prefixed with dash (to be removed): check -N - # if we have a -r switch, use it if ( defined ( $revision1 ) ) { - ( undef, $file1 ) = tempfile( DIR => $TEMP_DIR, OPEN => 0 ); $meta1 = $updater->getmeta($filename, $revision1); - unless ( defined ( $meta1 ) and $meta1->{filehash} ne "deleted" ) + } + elsif( defined($wrev) && $wrev ne "0" ) + { + my($rmRev)=$wrev; + $rmRev=~s/^-//; + $meta1 = $updater->getmeta($filename, $rmRev); + } + if ( !defined($meta1) || + $meta1->{filehash} eq "deleted" ) + { + if( !exists($state->{opt}{N}) ) { - print "E File $filename at revision $revision1 doesn't exist\n"; + if(!defined($revision1)) + { + print "E File $filename at revision $revision1 doesn't exist\n"; + } next; } - transmitfile($meta1->{filehash}, { targetfile => $file1 }); - } - # otherwise we just use the working copy revision - else - { - ( undef, $file1 ) = tempfile( DIR => $TEMP_DIR, OPEN => 0 ); - $meta1 = $updater->getmeta($filename, $wrev); - transmitfile($meta1->{filehash}, { targetfile => $file1 }); + elsif( !defined($meta1) ) + { + $meta1 = { + name => $filename, + revision => '0', + filehash => 'deleted' + }; + } } + # Priority for revision2: + # 1. Second -r (missing file: check -N) + # 2. Modified file contents from client + # 3. wrev from client's Entry line + # - missing line/file: check -N + # - Prefixed with dash (to be removed): check -N + # if we have a second -r switch, use it too if ( defined ( $revision2 ) ) { - ( undef, $file2 ) = tempfile( DIR => $TEMP_DIR, OPEN => 0 ); $meta2 = $updater->getmeta($filename, $revision2); - - unless ( defined ( $meta2 ) and $meta2->{filehash} ne "deleted" ) - { - print "E File $filename at revision $revision2 doesn't exist\n"; - next; - } - - transmitfile($meta2->{filehash}, { targetfile => $file2 }); } - # otherwise we just use the working copy - else + elsif(defined($state->{entries}{$filename}{modified_filename})) { $file2 = $state->{entries}{$filename}{modified_filename}; + $meta2 = { + name => $filename, + revision => '0', + filehash => 'modified' + }; + } + elsif( defined($wrev) && ($wrev!~/^-/) ) + { + if(!defined($revision1)) # no revision and no modifications: + { + next; + } + $meta2 = $updater->getmeta($filename, $wrev); + } + if(!defined($file2)) + { + if ( !defined($meta2) || + $meta2->{filehash} eq "deleted" ) + { + if( !exists($state->{opt}{N}) ) + { + if(!defined($revision2)) + { + print "E File $filename at revision $revision2 doesn't exist\n"; + } + next; + } + elsif( !defined($meta2) ) + { + $meta2 = { + name => $filename, + revision => '0', + filehash => 'deleted' + }; + } + } } - # if we have been given -r, and we don't have a $file2 yet, lets - # get one - if ( defined ( $revision1 ) and not defined ( $file2 ) ) + if( $meta1->{filehash} eq $meta2->{filehash} ) + { + $log->info("unchanged $filename"); + next; + } + + # Retrieve revision contents: + ( undef, $file1 ) = tempfile( DIR => $TEMP_DIR, OPEN => 0 ); + transmitfile($meta1->{filehash}, { targetfile => $file1 }); + + if(!defined($file2)) { ( undef, $file2 ) = tempfile( DIR => $TEMP_DIR, OPEN => 0 ); - $meta2 = $updater->getmeta($filename, $wrev); transmitfile($meta2->{filehash}, { targetfile => $file2 }); } - # We need to have retrieved something useful - next unless ( defined ( $meta1 ) ); - - # Files to date if the working copy and repo copy have the same - # revision, and the working copy is unmodified - if ( not defined ( $meta2 ) and $wrev eq $meta1->{revision} and - ( ( $state->{entries}{$filename}{unchanged} and - ( not defined ( $state->{entries}{$filename}{conflict} ) or - $state->{entries}{$filename}{conflict} !~ /^\+=/ ) ) or - ( defined($state->{entries}{$filename}{modified_hash}) and - $state->{entries}{$filename}{modified_hash} eq - $meta1->{filehash} ) ) ) - { - next; - } - - # Apparently we only show diffs for locally modified files - unless ( defined($meta2) or - defined ( $state->{entries}{$filename}{modified_filename} ) ) - { - next; - } - - print "M Index: $filename\n"; + # Generate the actual diff: + print "M Index: $argFilename\n"; print "M =======" . ( "=" x 60 ) . "\n"; print "M RCS file: $state->{CVSROOT}/$state->{module}/$filename,v\n"; - if ( defined ( $meta1 ) ) + if ( defined ( $meta1 ) && $meta1->{revision} ne "0" ) { print "M retrieving revision $meta1->{revision}\n" } - if ( defined ( $meta2 ) ) + if ( defined ( $meta2 ) && $meta2->{revision} ne "0" ) { print "M retrieving revision $meta2->{revision}\n" } @@ -1914,33 +2140,73 @@ sub req_diff } } } - print "$filename\n"; + print "$argFilename\n"; $log->info("Diffing $filename -r $meta1->{revision} -r " . ( $meta2->{revision} or "workingcopy" )); - ( $fh, $filediff ) = tempfile ( DIR => $TEMP_DIR ); + # TODO: Use --label instead of -L because -L is no longer + # documented and may go away someday. Not sure if there there are + # versions that only support -L, which would make this change risky? + # http://osdir.com/ml/bug-gnu-utils-gnu/2010-12/msg00060.html + # ("man diff" should actually document the best migration strategy, + # [current behavior, future changes, old compatibility issues + # or lack thereof, etc], not just stop mentioning the option...) + # TODO: Real CVS seems to include a date in the label, before + # the revision part, without the keyword "revision". The following + # has minimal changes compared to original versions of + # git-cvsserver.perl. (Mostly tab vs space after filename.) + my (@diffCmd) = ( 'diff' ); + if ( exists($state->{opt}{N}) ) + { + push @diffCmd,"-N"; + } if ( exists $state->{opt}{u} ) { - system("diff -u -L '$filename revision $meta1->{revision}'" . - " -L '$filename " . - ( defined($meta2->{revision}) ? - "revision $meta2->{revision}" : - "working copy" ) . - "' $file1 $file2 > $filediff" ); - } else { - system("diff $file1 $file2 > $filediff"); - } + push @diffCmd,("-u","-L"); + if( $meta1->{filehash} eq "deleted" ) + { + push @diffCmd,"/dev/null"; + } else { + push @diffCmd,("$argFilename\trevision $meta1->{revision}"); + } - while ( <$fh> ) - { - print "M $_"; + if( defined($meta2->{filehash}) ) + { + if( $meta2->{filehash} eq "deleted" ) + { + push @diffCmd,("-L","/dev/null"); + } else { + push @diffCmd,("-L", + "$argFilename\trevision $meta2->{revision}"); + } + } else { + push @diffCmd,("-L","$argFilename\tworking copy"); + } } - close $fh; + push @diffCmd,($file1,$file2); + if(!open(DIFF,"-|",@diffCmd)) + { + $log->warn("Unable to run diff: $!"); + } + my($diffLine); + while(defined($diffLine=)) + { + print "M $diffLine"; + $foundDiff=1; + } + close(DIFF); } - print "ok\n"; + if($foundDiff) + { + print "error \n"; + } + else + { + print "ok\n"; + } } sub req_log @@ -2160,7 +2426,7 @@ sub argsplit $opt = { A => 0, N => 0, P => 0, R => 0, c => 0, f => 0, l => 0, n => 0, p => 0, s => 0, r => 1, D => 1, d => 1, k => 1, j => 1, } if ( $type eq "co" ); $opt = { v => 0, l => 0, R => 0 } if ( $type eq "status" ); $opt = { A => 0, P => 0, C => 0, d => 0, f => 0, l => 0, R => 0, p => 0, k => 1, r => 1, D => 1, j => 1, I => 1, W => 1 } if ( $type eq "update" ); - $opt = { l => 0, R => 0, k => 1, D => 1, D => 1, r => 2 } if ( $type eq "diff" ); + $opt = { l => 0, R => 0, k => 1, D => 1, D => 1, r => 2, N => 0 } if ( $type eq "diff" ); $opt = { c => 0, R => 0, l => 0, f => 0, F => 1, m => 1, r => 1 } if ( $type eq "ci" ); $opt = { k => 1, m => 1 } if ( $type eq "add" ); $opt = { f => 0, l => 0, R => 0 } if ( $type eq "remove" ); @@ -3101,6 +3367,45 @@ sub descramble return $ret; } +# Test if the (deep) values of two references to a hash are the same. +sub refHashEqual +{ + my($v1,$v2) = @_; + + my $out; + if(!defined($v1)) + { + if(!defined($v2)) + { + $out=1; + } + } + elsif( !defined($v2) || + scalar(keys(%{$v1})) != scalar(keys(%{$v2})) ) + { + # $out=undef; + } + else + { + $out=1; + + my $key; + foreach $key (keys(%{$v1})) + { + if( !exists($v2->{$key}) || + defined($v1->{$key}) ne defined($v2->{$key}) || + ( defined($v1->{$key}) && + $v1->{$key} ne $v2->{$key} ) ) + { + $out=undef; + last; + } + } + } + + return $out; +} + package GITCVS::log; @@ -3506,6 +3811,8 @@ sub update my $lastcommit = $self->_get_prop("last_commit"); if (defined $lastcommit && $lastcommit eq $commitsha1) { # up-to-date + # invalidate the gethead cache + $self->clearCommitRefCaches(); return 1; }