diff options
Diffstat (limited to 'git-cvsserver.perl')
| -rwxr-xr-x | git-cvsserver.perl | 2393 |
1 files changed, 1903 insertions, 490 deletions
diff --git a/git-cvsserver.perl b/git-cvsserver.perl index b8eddabc94..f1c3f49a83 100755 --- a/git-cvsserver.perl +++ b/git-cvsserver.perl @@ -51,11 +51,16 @@ $| = 1; #### Definition and mappings of functions #### +# NOTE: Despite the existence of req_CATCHALL and req_EMPTY unimplemented +# requests, this list is incomplete. It is missing many rarer/optional +# requests. Perhaps some clients require a claim of support for +# these specific requests for main functionality to work? my $methods = { 'Root' => \&req_Root, 'Valid-responses' => \&req_Validresponses, 'valid-requests' => \&req_validrequests, 'Directory' => \&req_Directory, + 'Sticky' => \&req_Sticky, 'Entry' => \&req_Entry, 'Modified' => \&req_Modified, 'Unchanged' => \&req_Unchanged, @@ -80,7 +85,6 @@ my $methods = { 'noop' => \&req_EMPTY, 'annotate' => \&req_annotate, 'Global_option' => \&req_Globaloption, - #'annotate' => \&req_CATCHALL, }; ############################################## @@ -103,7 +107,7 @@ my $work = $log->info("--------------- STARTING -----------------"); my $usage = - "Usage: git cvsserver [options] [pserver|server] [<directory> ...]\n". + "usage: git cvsserver [options] [pserver|server] [<directory> ...]\n". " --base-path <path> : Prepend to requested CVSROOT\n". " Can be read from GIT_CVSSERVER_BASE_PATH\n". " --strict-paths : Don't allow recursing into subdirectories\n". @@ -467,11 +471,19 @@ sub req_Directory { $log->info("Setting prepend to '$state->{path}'"); $state->{prependdir} = $state->{path}; + my %entries; foreach my $entry ( keys %{$state->{entries}} ) { - $state->{entries}{$state->{prependdir} . $entry} = $state->{entries}{$entry}; - delete $state->{entries}{$entry}; + $entries{$state->{prependdir} . $entry} = $state->{entries}{$entry}; } + $state->{entries}=\%entries; + + my %dirMap; + foreach my $dir ( keys %{$state->{dirMap}} ) + { + $dirMap{$state->{prependdir} . $dir} = $state->{dirMap}{$dir}; + } + $state->{dirMap}=\%dirMap; } if ( defined ( $state->{prependdir} ) ) @@ -479,9 +491,60 @@ sub req_Directory $log->debug("Prepending '$state->{prependdir}' to state|directory"); $state->{directory} = $state->{prependdir} . $state->{directory} } + + if ( ! defined($state->{dirMap}{$state->{directory}}) ) + { + $state->{dirMap}{$state->{directory}} = + { + 'names' => {} + #'tagspec' => undef + }; + } + $log->debug("req_Directory : localdir=$data repository=$repository path=$state->{path} directory=$state->{directory} module=$state->{module}"); } +# Sticky tagspec \n +# Response expected: no. Tell the server that the directory most +# recently specified with Directory has a sticky tag or date +# tagspec. The first character of tagspec is T for a tag, D for +# a date, or some other character supplied by a Set-sticky +# response from a previous request to the server. The remainder +# of tagspec contains the actual tag or date, again as supplied +# by Set-sticky. +# The server should remember Static-directory and Sticky requests +# for a particular directory; the client need not resend them each +# time it sends a Directory request for a given directory. However, +# the server is not obliged to remember them beyond the context +# of a single command. +sub req_Sticky +{ + my ( $cmd, $tagspec ) = @_; + + my ( $stickyInfo ); + if($tagspec eq "") + { + # nothing + } + elsif($tagspec=~/^T([^ ]+)\s*$/) + { + $stickyInfo = { 'tag' => $1 }; + } + elsif($tagspec=~/^D([0-9.]+)\s*$/) + { + $stickyInfo= { 'date' => $1 }; + } + else + { + die "Unknown tag_or_date format\n"; + } + $state->{dirMap}{$state->{directory}}{stickyInfo}=$stickyInfo; + + $log->debug("req_Sticky : tagspec=$tagspec repository=$state->{repository}" + . " path=$state->{path} directory=$state->{directory}" + . " module=$state->{module}"); +} + # Entry entry-line \n # Response expected: no. Tell the server what version of a file is on the # local machine. The name in entry-line is a name relative to the directory @@ -499,7 +562,7 @@ sub req_Entry #$log->debug("req_Entry : $data"); - my @data = split(/\//, $data); + my @data = split(/\//, $data, -1); $state->{entries}{$state->{directory}.$data[1]} = { revision => $data[2], @@ -508,6 +571,8 @@ sub req_Entry tag_or_date => $data[5], }; + $state->{dirMap}{$state->{directory}}{names}{$data[1]} = 'F'; + $log->info("Received entry line '$data' => '" . $state->{directory} . $data[1] . "'"); } @@ -540,21 +605,22 @@ sub req_add my $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log); $updater->update(); - argsfromdir($updater); - my $addcount = 0; foreach my $filename ( @{$state->{args}} ) { $filename = filecleanup($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 < 0)) + if ($wrev && $meta && ($wrev=~/^-/)) { # previously removed file, add back - $log->info("added file $filename was previously removed, send 1.$meta->{revision}"); + $log->info("added file $filename was previously removed, send $meta->{revision}"); print "MT +updated\n"; print "MT text U \n"; @@ -571,8 +637,10 @@ sub req_add # this is an "entries" line my $kopts = kopts_from_path($filename,"sha1",$meta->{filehash}); - $log->debug("/$filepart/1.$meta->{revision}//$kopts/"); - print "/$filepart/1.$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=$meta->{mode}\n"; @@ -603,7 +671,8 @@ sub req_add print "$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)) @@ -671,7 +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 ( $wrev ) ) @@ -680,13 +752,13 @@ sub req_remove next; } - if ( defined($wrev) and $wrev < 0 ) + if ( defined($wrev) and ($wrev=~/^-/) ) { print "E cvs remove: file `$filename' already scheduled for removal\n"; next; } - unless ( $wrev == $meta->{revision} ) + unless ( $wrev eq $meta->{revision} ) { # TODO : not sure if the format of this message is quite correct. print "E cvs remove: Up to date check failed for `$filename'\n"; @@ -701,7 +773,7 @@ sub req_remove print "Checked-in $dirpart\n"; print "$filename\n"; my $kopts = kopts_from_path($filename,"sha1",$meta->{filehash}); - print "/$filepart/-1.$wrev//$kopts/\n"; + print "/$filepart/-$wrev//$kopts/" . getStickyTagOrDate($stickyInfo) . "\n"; $rmcount++; } @@ -881,6 +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; @@ -898,64 +973,32 @@ sub req_co my $updater = GITCVS::updater->new($state->{CVSROOT}, $module, $log); $updater->update(); - $checkout_path =~ s|/$||; # get rid of trailing slashes + 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; + } + } - # 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"; + $checkout_path =~ s|/$||; # get rid of trailing slashes 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, $remotedir" ); - - if ($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} ) + prepDirForOutput( + ".", + $state->{CVSROOT} . "/$module", + $checkout_path, + \%seendirs, + 'checkout', + $state->{dirArgs} ); + + foreach my $git ( @{$updater->getAnyHead($headHash)} ) { # Don't want to check out deleted files next if ( $git->{filehash} eq "deleted" ); @@ -963,16 +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"; @@ -992,7 +1032,8 @@ sub req_co # this is an "entries" line my $kopts = kopts_from_path($fullName,"sha1",$git->{filehash}); - print "/$git->{name}/1.$git->{revision}//$kopts/\n"; + print "/$git->{name}/$git->{revision}//$kopts/" . + getStickyTagOrDate($stickyInfo) . "\n"; # permissions print "u=$git->{mode},g=$git->{mode},o=$git->{mode}\n"; @@ -1005,6 +1046,119 @@ sub req_co statecleanup(); } +# used by req_co and req_update to set up directories for files +# recursively handles parents +sub prepDirForOutput +{ + my ($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 + # $seendirs after after processing all files. +} + # update \n # Response expected: yes. Actually do a cvs update command. This uses any # previous Argument, Directory, Entry, or Modified requests, if they have @@ -1048,29 +1202,19 @@ sub req_update #$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} ) ) { @@ -1079,13 +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 ( $state->{opt}{p} ) ) { @@ -1098,23 +1240,41 @@ sub req_update next; } + # Directories: + prepDirForOutput( + dirname($argsFilename), + $repoDir, + ".", + \%seendirs, + "update", + $state->{dirArgs} ); + + my $wrev = revparse($filename); + if ( ! defined $meta ) { $meta = { name => $filename, - revision => 0, + revision => '0', filehash => 'added' }; + if($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 != $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"); @@ -1123,7 +1283,7 @@ sub req_update # and the working copy is unmodified _and_ the user hasn't specified -C next if ( defined ( $wrev ) and defined($meta->{revision}) - and $wrev == $meta->{revision} + and $wrev eq $meta->{revision} and $state->{entries}{$filename}{unchanged} and not exists ( $state->{opt}{C} ) ); @@ -1131,7 +1291,8 @@ sub req_update # but the working copy is modified, tell the client it's modified if ( defined ( $wrev ) and defined($meta->{revision}) - and $wrev == $meta->{revision} + and $wrev eq $meta->{revision} + and $wrev ne "0" and defined($state->{entries}{$filename}{modified_hash}) and not exists ( $state->{opt}{C} ) ) { @@ -1142,8 +1303,12 @@ 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 + # file. + my ( $filepart, $dirpart ) = filenamesplit($filename,1); $log->info("Removing '$filename' from working copy (no longer in the repo)"); @@ -1161,7 +1326,7 @@ sub req_update { # normal update, just send the new revision (either U=Update, # or A=Add, or R=Remove) - if ( defined($wrev) && $wrev < 0 ) + if ( defined($wrev) && ($wrev=~/^-/) ) { $log->info("Tell the client the file is scheduled for removal"); print "MT text R \n"; @@ -1169,7 +1334,8 @@ sub req_update print "MT newline\n"; next; } - elsif ( (!defined($wrev) || $wrev == 0) && (!defined($meta->{revision}) || $meta->{revision} == 0) ) + elsif ( (!defined($wrev) || $wrev eq '0') && + (!defined($meta->{revision}) || $meta->{revision} eq '0') ) { $log->info("Tell the client the file is scheduled for addition"); print "MT text A \n"; @@ -1179,7 +1345,7 @@ sub req_update } else { - $log->info("Updating '$filename' to ".$meta->{revision}); + $log->info("UpdatingX3 '$filename' to ".$meta->{revision}); print "MT +updated\n"; print "MT text U \n"; print "MT fname $filename\n"; @@ -1199,10 +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"; @@ -1211,8 +1373,10 @@ sub req_update # this is an "entries" line my $kopts = kopts_from_path($filename,"sha1",$meta->{filehash}); - $log->debug("/$filepart/1.$meta->{revision}//$kopts/"); - print "/$filepart/1.$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}"); @@ -1222,7 +1386,6 @@ sub req_update transmitfile($meta->{filehash}); } } else { - $log->info("Updating '$filename'"); my ( $filepart, $dirpart ) = filenamesplit($meta->{name},1); my $mergeDir = setupTmpDir(); @@ -1237,7 +1400,7 @@ sub req_update # we need to merge with the local changes ( M=successful merge, C=conflict merge ) $log->info("Merging $file_local, $file_old, $file_new"); - print "M Merging differences between 1.$oldmeta->{revision} and 1.$meta->{revision} into $filename\n"; + print "M Merging differences between $oldmeta->{revision} and $meta->{revision} into $filename\n"; $log->debug("Temporary directory for merge is $mergeDir"); @@ -1260,8 +1423,10 @@ sub req_update print $state->{CVSROOT} . "/$state->{module}/$filename\n"; my $kopts = kopts_from_path("$dirpart/$filepart", "file",$mergedFile); - $log->debug("/$filepart/1.$meta->{revision}//$kopts/"); - print "/$filepart/1.$meta->{revision}//$kopts/\n"; + $log->debug("/$filepart/$meta->{revision}//$kopts/"); + my $entriesLine="/$filepart/$meta->{revision}//$kopts/"; + $entriesLine .= getStickyTagOrDate($stickyInfo); + print "$entriesLine\n"; } } elsif ( $return == 1 ) @@ -1277,7 +1442,9 @@ sub req_update print $state->{CVSROOT} . "/$state->{module}/$filename\n"; my $kopts = kopts_from_path("$dirpart/$filepart", "file",$mergedFile); - print "/$filepart/1.$meta->{revision}/+/$kopts/\n"; + my $entriesLine = "/$filepart/$meta->{revision}/+/$kopts/"; + $entriesLine .= getStickyTagOrDate($stickyInfo); + print "$entriesLine\n"; } } else @@ -1305,6 +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"; } @@ -1337,23 +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}} ) @@ -1363,7 +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); @@ -1380,11 +1632,12 @@ sub req_ci my $addflag = 0; my $rmflag = 0; - $rmflag = 1 if ( defined($wrev) and $wrev < 0 ); + $rmflag = 1 if ( defined($wrev) and ($wrev=~/^-/) ); $addflag = 1 unless ( -e $filename ); # Do up to date checking - unless ( $addflag or $wrev == $meta->{revision} or ( $rmflag and -$wrev == $meta->{revision} ) ) + unless ( $addflag or $wrev eq $meta->{revision} or + ( $rmflag and $wrev eq "-$meta->{revision}" ) ) { # fail everything if an up to date check fails print "error 1 Up to date check failed for $filename\n"; @@ -1421,7 +1674,7 @@ sub req_ci $log->info("Adding file '$filename'"); system("git", "update-index", "--add", $filename); } else { - $log->info("Updating file '$filename'"); + $log->info("UpdatingX2 file '$filename'"); system("git", "update-index", $filename); } } @@ -1464,7 +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 $hook[0] ) { unless( system( @hook ) == 0 ) @@ -1478,7 +1731,7 @@ sub req_ci ### Update the ref if (system(qw(git update-ref -m), "cvsserver ci", - "refs/heads/$state->{module}", $commithash, $parenthash)) { + $branchRef, $commithash, $parenthash)) { $log->warn("update-ref for $state->{module} failed."); print "error 1 Cannot commit -- update first\n"; cleanupWorkTree(); @@ -1492,7 +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: $! $?"; } @@ -1502,7 +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 ... @@ -1510,9 +1763,9 @@ sub req_ci { $filename = filecleanup($filename); - my $meta = $updater->getmeta($filename); + my $meta = $updater->getmeta($filename,$stickyInfo); unless (defined $meta->{revision}) { - $meta->{revision} = 1; + $meta->{revision} = "1.1"; } my ( $filepart, $dirpart ) = filenamesplit($filename, 1); @@ -1522,19 +1775,20 @@ sub req_ci print "M $state->{CVSROOT}/$state->{module}/$filename,v <-- $dirpart$filepart\n"; if ( defined $meta->{filehash} && $meta->{filehash} eq "deleted" ) { - print "M new revision: delete; previous revision: 1.$oldmeta{$filename}{revision}\n"; + print "M new revision: delete; previous revision: $oldmeta{$filename}{revision}\n"; print "Remove-entry $dirpart\n"; print "$filename\n"; } else { - if ($meta->{revision} == 1) { + if ($meta->{revision} eq "1.1") { print "M initial revision: 1.1\n"; } else { - print "M new revision: 1.$meta->{revision}; previous revision: 1.$oldmeta{$filename}{revision}\n"; + print "M new revision: $meta->{revision}; previous revision: $oldmeta{$filename}{revision}\n"; } print "Checked-in $dirpart\n"; print "$filename\n"; my $kopts = kopts_from_path($filename,"sha1",$meta->{filehash}); - print "/$filepart/1.$meta->{revision}//$kopts/\n"; + print "/$filepart/$meta->{revision}//$kopts/" . + getStickyTagOrDate($stickyInfo) . "\n"; } } @@ -1552,10 +1806,12 @@ sub req_status #$log->debug("status state : " . Dumper($state)); # Grab a handle to the SQLite db and do any necessary updates - my $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log); + my $updater; + $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log); $updater->update(); - # if no files were specified, we need to work out what files we should be providing status on ... + # if no files were specified, we need to work out what files we should + # be providing status on ... argsfromdir($updater); # foreach file specified on the command line ... @@ -1563,67 +1819,140 @@ sub req_status { $filename = filecleanup($filename); - next if exists($state->{opt}{l}) && index($filename, '/', length($state->{prependdir})) >= 0; - - my $meta = $updater->getmeta($filename); - my $oldmeta = $meta; + if ( exists($state->{opt}{l}) && + index($filename, '/', length($state->{prependdir})) >= 0 ) + { + next; + } my $wrev = revparse($filename); - # If the working copy is an old revision, lets get that version too for comparison. - if ( defined($wrev) and $wrev != $meta->{revision} ) + 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 my $status; - # Files are up to date if the working copy and repo copy have the same revision, and the working copy is unmodified - $status = "Up-to-date" if ( defined ( $wrev ) and defined($meta->{revision}) and $wrev == $meta->{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 $meta->{filehash} ) ) - ); - - # Need checkout if the working copy has an older revision than the repo copy, and the working copy is unmodified - $status ||= "Needs Checkout" if ( defined ( $wrev ) and defined ( $meta->{revision} ) and $meta->{revision} > $wrev - and - ( $state->{entries}{$filename}{unchanged} - or ( defined($state->{entries}{$filename}{modified_hash}) and $state->{entries}{$filename}{modified_hash} eq $oldmeta->{filehash} ) ) - ); - - # Need checkout if it exists in the repo but doesn't have a working copy - $status ||= "Needs Checkout" if ( not defined ( $wrev ) and defined ( $meta->{revision} ) ); - - # Locally modified if working copy and repo copy have the same revision but there are local changes - $status ||= "Locally Modified" if ( defined ( $wrev ) and defined($meta->{revision}) and $wrev == $meta->{revision} and $state->{entries}{$filename}{modified_filename} ); - - # Needs Merge if working copy revision is less than repo copy and there are local changes - $status ||= "Needs Merge" if ( defined ( $wrev ) and defined ( $meta->{revision} ) and $meta->{revision} > $wrev and $state->{entries}{$filename}{modified_filename} ); - - $status ||= "Locally Added" if ( defined ( $state->{entries}{$filename}{revision} ) and not defined ( $meta->{revision} ) ); - $status ||= "Locally Removed" if ( defined ( $wrev ) and defined ( $meta->{revision} ) and -$wrev == $meta->{revision} ); - $status ||= "Unresolved Conflict" if ( defined ( $state->{entries}{$filename}{conflict} ) and $state->{entries}{$filename}{conflict} =~ /^\+=/ ); - $status ||= "File had conflicts on merge" if ( 0 ); + # Files are up to date if the working copy and repo copy have + # the same revision, and the working copy is unmodified + if ( defined ( $wrev ) and defined($meta->{revision}) and + $wrev eq $meta->{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 + $meta->{filehash} ) ) ) + { + $status = "Up-to-date" + } + + # Need checkout if the working copy has a different (usually + # older) revision than the repo copy, and the working copy is + # unmodified + if ( defined ( $wrev ) and defined ( $meta->{revision} ) and + $meta->{revision} ne $wrev and + ( $state->{entries}{$filename}{unchanged} or + ( defined($state->{entries}{$filename}{modified_hash}) and + $state->{entries}{$filename}{modified_hash} eq + $oldmeta->{filehash} ) ) ) + { + $status ||= "Needs Checkout"; + } + + # Need checkout if it exists in the repo but doesn't have a working + # copy + if ( not defined ( $wrev ) and defined ( $meta->{revision} ) ) + { + $status ||= "Needs Checkout"; + } + + # Locally modified if working copy and repo copy have the + # 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"; + } + + # Needs Merge if working copy revision is different + # (usually older) than repo copy and there are local changes + if ( defined ( $wrev ) and defined ( $meta->{revision} ) and + $meta->{revision} ne $wrev and + $state->{entries}{$filename}{modified_filename} ) + { + $status ||= "Needs Merge"; + } + + if ( defined ( $state->{entries}{$filename}{revision} ) and + ( !defined($meta->{revision}) || + $meta->{revision} eq "0" ) ) + { + $status ||= "Locally Added"; + } + if ( defined ( $wrev ) and defined ( $meta->{revision} ) and + $wrev eq "-$meta->{revision}" ) + { + $status ||= "Locally Removed"; + } + if ( defined ( $state->{entries}{$filename}{conflict} ) and + $state->{entries}{$filename}{conflict} =~ /^\+=/ ) + { + $status ||= "Unresolved Conflict"; + } + if ( 0 ) + { + $status ||= "File had conflicts on merge"; + } $status ||= "Unknown"; my ($filepart) = filenamesplit($filename); - print "M ===================================================================\n"; + print "M =======" . ( "=" x 60 ) . "\n"; print "M File: $filepart\tStatus: $status\n"; if ( defined($state->{entries}{$filename}{revision}) ) { - print "M Working revision:\t" . $state->{entries}{$filename}{revision} . "\n"; + print "M Working revision:\t" . + $state->{entries}{$filename}{revision} . "\n"; } else { print "M Working revision:\tNo entry for $filename\n"; } if ( defined($meta->{revision}) ) { - print "M Repository revision:\t1." . $meta->{revision} . "\t$state->{CVSROOT}/$state->{module}/$filename,v\n"; - print "M Sticky Tag:\t\t(none)\n"; - print "M Sticky Date:\t\t(none)\n"; - print "M Sticky Options:\t\t(none)\n"; + print "M Repository revision:\t" . + $meta->{revision} . + "\t$state->{CVSROOT}/$state->{module}/$filename,v\n"; + my($tagOrDate)=$state->{entries}{$filename}{tag_or_date}; + my($tag)=($tagOrDate=~m/^T(.+)$/); + if( !defined($tag) ) + { + $tag="(none)"; + } + print "M Sticky Tag:\t\t$tag\n"; + my($date)=($tagOrDate=~m/^D(.+)$/); + if( !defined($date) ) + { + $date="(none)"; + } + print "M Sticky Date:\t\t$date\n"; + my($options)=$state->{entries}{$filename}{options}; + if( $options eq "" ) + { + $options="(none)"; + } + print "M Sticky Options:\t\t$options\n"; } else { print "M Repository revision:\tNo revision control file\n"; } @@ -1651,96 +1980,149 @@ sub req_diff $revision1 = $state->{opt}{r}; } - $revision1 =~ s/^1\.// if ( defined ( $revision1 ) ); - $revision2 =~ s/^1\.// if ( defined ( $revision2 ) ); - - $log->debug("Diffing revisions " . ( defined($revision1) ? $revision1 : "[NULL]" ) . " and " . ( defined($revision2) ? $revision2 : "[NULL]" ) ); + $log->debug("Diffing revisions " . + ( defined($revision1) ? $revision1 : "[NULL]" ) . + " and " . ( defined($revision2) ? $revision2 : "[NULL]" ) ); # Grab a handle to the SQLite db and do any necessary updates - my $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log); + my $updater; + $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log); $updater->update(); - # if no files were specified, we need to work out what files we should be providing status on ... + # if no files were specified, we need to work out what files we should + # be providing status on ... argsfromdir($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 $filename at revision 1.$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 $meta2->{filehash} ne "deleted" ) + } + elsif(defined($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: { - print "E File $filename at revision 1.$revision2 doesn't exist\n"; next; } - - transmitfile($meta2->{filehash}, { targetfile => $file2 }); + $meta2 = $updater->getmeta($filename, $wrev); } - # otherwise we just use the working copy - else + if(!defined($file2)) { - $file2 = $state->{entries}{$filename}{modified_filename}; + 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} ) { - ( undef, $file2 ) = tempfile( DIR => $TEMP_DIR, OPEN => 0 ); - $meta2 = $updater->getmeta($filename, $wrev); - transmitfile($meta2->{filehash}, { targetfile => $file2 }); + $log->info("unchanged $filename"); + next; } - # 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 - next if ( not defined ( $meta2 ) and $wrev == $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} ) ) - ); + # Retrieve revision contents: + ( undef, $file1 ) = tempfile( DIR => $TEMP_DIR, OPEN => 0 ); + transmitfile($meta1->{filehash}, { targetfile => $file1 }); - # Apparently we only show diffs for locally modified files - next unless ( defined($meta2) or defined ( $state->{entries}{$filename}{modified_filename} ) ); + if(!defined($file2)) + { + ( undef, $file2 ) = tempfile( DIR => $TEMP_DIR, OPEN => 0 ); + transmitfile($meta2->{filehash}, { targetfile => $file2 }); + } - print "M Index: $filename\n"; - print "M ===================================================================\n"; + # Generate the actual diff: + print "M Index: $argFilename\n"; + print "M =======" . ( "=" x 60 ) . "\n"; print "M RCS file: $state->{CVSROOT}/$state->{module}/$filename,v\n"; - print "M retrieving revision 1.$meta1->{revision}\n" if ( defined ( $meta1 ) ); - print "M retrieving revision 1.$meta2->{revision}\n" if ( defined ( $meta2 ) ); + if ( defined ( $meta1 ) && $meta1->{revision} ne "0" ) + { + print "M retrieving revision $meta1->{revision}\n" + } + if ( defined ( $meta2 ) && $meta2->{revision} ne "0" ) + { + print "M retrieving revision $meta2->{revision}\n" + } print "M diff "; foreach my $opt ( keys %{$state->{opt}} ) { @@ -1752,30 +2134,79 @@ sub req_diff } } else { print "-$opt "; - print "$state->{opt}{$opt} " if ( defined ( $state->{opt}{$opt} ) ); + if ( defined ( $state->{opt}{$opt} ) ) + { + print "$state->{opt}{$opt} " + } } } - print "$filename\n"; - - $log->info("Diffing $filename -r $meta1->{revision} -r " . ( $meta2->{revision} or "workingcopy" )); - - ( $fh, $filediff ) = tempfile ( DIR => $TEMP_DIR ); - - if ( exists $state->{opt}{u} ) + print "$argFilename\n"; + + $log->info("Diffing $filename -r $meta1->{revision} -r " . + ( $meta2->{revision} or "workingcopy" )); + + # TODO: Use --label instead of -L because -L is no longer + # documented and may go away someday. Not sure if there there are + # versions that only support -L, which would make this change risky? + # http://osdir.com/ml/bug-gnu-utils-gnu/2010-12/msg00060.html + # ("man diff" should actually document the best migration strategy, + # [current behavior, future changes, old compatibility issues + # or lack thereof, etc], not just stop mentioning the option...) + # TODO: Real CVS seems to include a date in the label, before + # the revision part, without the keyword "revision". The following + # has minimal changes compared to original versions of + # git-cvsserver.perl. (Mostly tab vs space after filename.) + + my (@diffCmd) = ( 'diff' ); + if ( exists($state->{opt}{N}) ) { - system("diff -u -L '$filename revision 1.$meta1->{revision}' -L '$filename " . ( defined($meta2->{revision}) ? "revision 1.$meta2->{revision}" : "working copy" ) . "' $file1 $file2 > $filediff"); - } else { - system("diff $file1 $file2 > $filediff"); + push @diffCmd,"-N"; } + if ( exists $state->{opt}{u} ) + { + push @diffCmd,("-u","-L"); + if( $meta1->{filehash} eq "deleted" ) + { + push @diffCmd,"/dev/null"; + } else { + push @diffCmd,("$argFilename\trevision $meta1->{revision}"); + } - while ( <$fh> ) + 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"); + } + } + push @diffCmd,($file1,$file2); + if(!open(DIFF,"-|",@diffCmd)) { - print "M $_"; + $log->warn("Unable to run diff: $!"); } - close $fh; + my($diffLine); + while(defined($diffLine=<DIFF>)) + { + print "M $diffLine"; + $foundDiff=1; + } + close(DIFF); } - print "ok\n"; + if($foundDiff) + { + print "error \n"; + } + else + { + print "ok\n"; + } } sub req_log @@ -1787,22 +2218,19 @@ sub req_log $log->debug("req_log : " . ( defined($data) ? $data : "[NULL]" )); #$log->debug("log state : " . Dumper($state)); - my ( $minrev, $maxrev ); - if ( defined ( $state->{opt}{r} ) and $state->{opt}{r} =~ /([\d.]+)?(::?)([\d.]+)?/ ) + my ( $revFilter ); + if ( defined ( $state->{opt}{r} ) ) { - my $control = $2; - $minrev = $1; - $maxrev = $3; - $minrev =~ s/^1\.// if ( defined ( $minrev ) ); - $maxrev =~ s/^1\.// if ( defined ( $maxrev ) ); - $minrev++ if ( defined($minrev) and $control eq "::" ); + $revFilter = $state->{opt}{r}; } # Grab a handle to the SQLite db and do any necessary updates - my $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log); + my $updater; + $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log); $updater->update(); - # if no files were specified, we need to work out what files we should be providing status on ... + # if no files were specified, we need to work out what files we + # should be providing status on ... argsfromdir($updater); # foreach file specified on the command line ... @@ -1812,53 +2240,46 @@ sub req_log my $headmeta = $updater->getmeta($filename); - my $revisions = $updater->getlog($filename); - my $totalrevisions = scalar(@$revisions); - - if ( defined ( $minrev ) ) - { - $log->debug("Removing revisions less than $minrev"); - while ( scalar(@$revisions) > 0 and $revisions->[-1]{revision} < $minrev ) - { - pop @$revisions; - } - } - if ( defined ( $maxrev ) ) - { - $log->debug("Removing revisions greater than $maxrev"); - while ( scalar(@$revisions) > 0 and $revisions->[0]{revision} > $maxrev ) - { - shift @$revisions; - } - } + my ($revisions,$totalrevisions) = $updater->getlog($filename, + $revFilter); next unless ( scalar(@$revisions) ); print "M \n"; print "M RCS file: $state->{CVSROOT}/$state->{module}/$filename,v\n"; print "M Working file: $filename\n"; - print "M head: 1.$headmeta->{revision}\n"; + print "M head: $headmeta->{revision}\n"; print "M branch:\n"; print "M locks: strict\n"; print "M access list:\n"; print "M symbolic names:\n"; print "M keyword substitution: kv\n"; - print "M total revisions: $totalrevisions;\tselected revisions: " . scalar(@$revisions) . "\n"; + print "M total revisions: $totalrevisions;\tselected revisions: " . + scalar(@$revisions) . "\n"; print "M description:\n"; foreach my $revision ( @$revisions ) { print "M ----------------------------\n"; - print "M revision 1.$revision->{revision}\n"; + print "M revision $revision->{revision}\n"; # reformat the date for log output - $revision->{modified} = sprintf('%04d/%02d/%02d %s', $3, $DATE_LIST->{$2}, $1, $4 ) if ( $revision->{modified} =~ /(\d+)\s+(\w+)\s+(\d+)\s+(\S+)/ and defined($DATE_LIST->{$2}) ); + if ( $revision->{modified} =~ /(\d+)\s+(\w+)\s+(\d+)\s+(\S+)/ and + defined($DATE_LIST->{$2}) ) + { + $revision->{modified} = sprintf('%04d/%02d/%02d %s', + $3, $DATE_LIST->{$2}, $1, $4 ); + } $revision->{author} = cvs_author($revision->{author}); - print "M date: $revision->{modified}; author: $revision->{author}; state: " . ( $revision->{filehash} eq "deleted" ? "dead" : "Exp" ) . "; lines: +2 -3\n"; - my $commitmessage = $updater->commitmessage($revision->{commithash}); + print "M date: $revision->{modified};" . + " author: $revision->{author}; state: " . + ( $revision->{filehash} eq "deleted" ? "dead" : "Exp" ) . + "; lines: +2 -3\n"; + my $commitmessage; + $commitmessage = $updater->commitmessage($revision->{commithash}); $commitmessage =~ s/^/M /mg; print $commitmessage . "\n"; } - print "M =============================================================================\n"; + print "M =======" . ( "=" x 70 ) . "\n"; } print "ok\n"; @@ -1964,7 +2385,7 @@ sub req_annotate $metadata->{$commithash}{author} = cvs_author($metadata->{$commithash}{author}); $metadata->{$commithash}{modified} = sprintf("%02d-%s-%02d", $1, $2, $3) if ( $metadata->{$commithash}{modified} =~ /^(\d+)\s(\w+)\s\d\d(\d\d)/ ); } - printf("M 1.%-5d (%-8s %10s): %s\n", + printf("M %-7s (%-8s %10s): %s\n", $metadata->{$commithash}{revision}, $metadata->{$commithash}{author}, $metadata->{$commithash}{modified}, @@ -2005,7 +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" ); @@ -2071,74 +2492,346 @@ sub argsplit } } -# This method uses $state->{directory} to populate $state->{args} with a list of filenames -sub argsfromdir +# Used by argsfromdir +sub expandArg { - my $updater = shift; + my ($updater,$outNameMap,$outDirMap,$path,$isDir) = @_; - $state->{args} = [] if ( scalar(@{$state->{args}}) == 1 and $state->{args}[0] eq "." ); + my $fullPath = filecleanup($path); - return if ( scalar ( @{$state->{args}} ) > 1 ); + # Is it a directory? + if( defined($state->{dirMap}{$fullPath}) || + defined($state->{dirMap}{"$fullPath/"}) ) + { + # It is a directory in the user's sandbox. + $isDir=1; - my @gethead = @{$updater->gethead}; + if(defined($state->{entries}{$fullPath})) + { + $log->fatal("Inconsistent file/dir type"); + die "Inconsistent file/dir type"; + } + } + elsif(defined($state->{entries}{$fullPath})) + { + # It is a file in the user's sandbox. + $isDir=0; + } + my($revDirMap,$otherRevDirMap); + if(!defined($isDir) || $isDir) + { + # Resolve version tree for sticky tag: + # (for now we only want list of files for the version, not + # particular versions of those files: assume it is a directory + # for the moment; ignore Entry's stick tag) + + # Order of precedence of sticky tags: + # -A [head] + # -r /tag/ + # [file entry sticky tag, but that is only relevant to files] + # [the tag specified in dir req_Sticky] + # [the tag specified in a parent dir req_Sticky] + # [head] + # Also, -r may appear twice (for diff). + # + # FUTURE: When/if -j (merges) are supported, we also + # need to add relevant files from one or two + # versions specified with -j. + + if(exists($state->{opt}{A})) + { + $revDirMap=$updater->getRevisionDirMap(); + } + elsif( defined($state->{opt}{r}) and + ref $state->{opt}{r} eq "ARRAY" ) + { + $revDirMap=$updater->getRevisionDirMap($state->{opt}{r}[0]); + $otherRevDirMap=$updater->getRevisionDirMap($state->{opt}{r}[1]); + } + elsif(defined($state->{opt}{r})) + { + $revDirMap=$updater->getRevisionDirMap($state->{opt}{r}); + } + else + { + my($sticky)=getDirStickyInfo($fullPath); + $revDirMap=$updater->getRevisionDirMap($sticky->{tag}); + } - # push added files - foreach my $file (keys %{$state->{entries}}) { - if ( exists $state->{entries}{$file}{revision} && - $state->{entries}{$file}{revision} == 0 ) - { - push @gethead, { name => $file, filehash => 'added' }; - } + # Is it a directory? + if( defined($revDirMap->{$fullPath}) || + defined($otherRevDirMap->{$fullPath}) ) + { + $isDir=1; + } } - if ( scalar(@{$state->{args}}) == 1 ) + # What to do with it? + if(!$isDir) { - my $arg = $state->{args}[0]; - $arg .= $state->{prependdir} if ( defined ( $state->{prependdir} ) ); + $outNameMap->{$fullPath}=1; + } + else + { + $outDirMap->{$fullPath}=1; + + if(defined($revDirMap->{$fullPath})) + { + addDirMapFiles($updater,$outNameMap,$outDirMap, + $revDirMap->{$fullPath}); + } + if( defined($otherRevDirMap) && + defined($otherRevDirMap->{$fullPath}) ) + { + addDirMapFiles($updater,$outNameMap,$outDirMap, + $otherRevDirMap->{$fullPath}); + } + } +} - $log->info("Only one arg specified, checking for directory expansion on '$arg'"); +# Used by argsfromdir +# Add entries from dirMap to outNameMap. Also recurse into entries +# that are subdirectories. +sub addDirMapFiles +{ + my($updater,$outNameMap,$outDirMap,$dirMap)=@_; + + my($fullName); + foreach $fullName (keys(%$dirMap)) + { + my $cleanName=$fullName; + if(defined($state->{prependdir})) + { + if(!($cleanName=~s/^\Q$state->{prependdir}\E//)) + { + $log->fatal("internal error stripping prependdir"); + die "internal error stripping prependdir"; + } + } - foreach my $file ( @gethead ) + if($dirMap->{$fullName} eq "F") { - next if ( $file->{filehash} eq "deleted" and not defined ( $state->{entries}{$file->{name}} ) ); - next unless ( $file->{name} =~ /^$arg\// or $file->{name} eq $arg ); - push @{$state->{args}}, $file->{name}; + $outNameMap->{$cleanName}=1; } + elsif($dirMap->{$fullName} eq "D") + { + if(!$state->{opt}{l}) + { + expandArg($updater,$outNameMap,$outDirMap,$cleanName,1); + } + } + else + { + $log->fatal("internal error in addDirMapFiles"); + die "internal error in addDirMapFiles"; + } + } +} - shift @{$state->{args}} if ( scalar(@{$state->{args}}) > 1 ); - } else { - $log->info("Only one arg specified, populating file list automatically"); +# This method replaces $state->{args} with a directory-expanded +# list of all relevant filenames (recursively unless -d), based +# on $state->{entries}, and the "current" list of files in +# each directory. "Current" files as determined by +# either the requested (-r/-A) or "req_Sticky" version of +# that directory. +# Both the input args and the new output args are relative +# to the cvs-client's CWD, although some of the internal +# computations are relative to the top of the project. +sub argsfromdir +{ + my $updater = shift; + + # Notes about requirements for specific callers: + # update # "standard" case (entries; a single -r/-A/default; -l) + # # Special case: -d for create missing directories. + # diff # 0 or 1 -r's: "standard" case. + # # 2 -r's: We could ignore entries (just use the two -r's), + # # but it doesn't really matter. + # annotate # "standard" case + # log # Punting: log -r has a more complex non-"standard" + # # meaning, and we don't currently try to support log'ing + # # branches at all (need a lot of work to + # # support CVS-consistent branch relative version + # # numbering). +#HERE: But we still want to expand directories. Maybe we should +# essentially force "-A". + # status # "standard", except that -r/-A/default are not possible. + # # Mostly only used to expand entries only) + # + # Don't use argsfromdir at all: + # add # Explicit arguments required. Directory args imply add + # # the directory itself, not the files in it. + # co # Obtain list directly. + # remove # HERE: TEST: MAYBE client does the recursion for us, + # # since it only makes sense to remove stuff already in + # # the sandobx? + # ci # HERE: Similar to remove... + # # Don't try to implement the confusing/weird + # # ci -r bug er.."feature". + + if(scalar(@{$state->{args}})==0) + { + $state->{args} = [ "." ]; + } + my %allArgs; + my %allDirs; + for my $file (@{$state->{args}}) + { + expandArg($updater,\%allArgs,\%allDirs,$file); + } - $state->{args} = []; + # Include any entries from sandbox. Generally client won't + # send entries that shouldn't be used. + foreach my $file (keys %{$state->{entries}}) + { + $allArgs{remove_prependdir($file)} = 1; + } - foreach my $file ( @gethead ) + $state->{dirArgs} = \%allDirs; + $state->{args} = [ + sort { + # Sort priority: by directory depth, then actual file name: + my @piecesA=split('/',$a); + my @piecesB=split('/',$b); + + my $count=scalar(@piecesA); + my $tmp=scalar(@piecesB); + return $count<=>$tmp if($count!=$tmp); + + for($tmp=0;$tmp<$count;$tmp++) + { + if($piecesA[$tmp] ne $piecesB[$tmp]) + { + return $piecesA[$tmp] cmp $piecesB[$tmp] + } + } + return 0; + } keys(%allArgs) ]; +} + +## look up directory sticky tag, of either fullPath or a parent: +sub getDirStickyInfo +{ + my($fullPath)=@_; + + $fullPath=~s%/+$%%; + while($fullPath ne "" && !defined($state->{dirMap}{"$fullPath/"})) + { + $fullPath=~s%/?[^/]*$%%; + } + + if( !defined($state->{dirMap}{"$fullPath/"}) && + ( $fullPath eq "" || + $fullPath eq "." ) ) + { + return $state->{dirMap}{""}{stickyInfo}; + } + else + { + return $state->{dirMap}{"$fullPath/"}{stickyInfo}; + } +} + +# Resolve precedence of various ways of specifying which version of +# a file you want. Returns undef (for default head), or a ref to a hash +# that contains "tag" and/or "date" keys. +sub resolveStickyInfo +{ + my($filename,$stickyTag,$stickyDate,$reset) = @_; + + # Order of precedence of sticky tags: + # -A [head] + # -r /tag/ + # [file entry sticky tag] + # [the tag specified in dir req_Sticky] + # [the tag specified in a parent dir req_Sticky] + # [head] + + my $result; + if($reset) + { + # $result=undef; + } + elsif( defined($stickyTag) && $stickyTag ne "" ) + # || ( defined($stickyDate) && $stickyDate ne "" ) # TODO + { + $result={ 'tag' => (defined($stickyTag)?$stickyTag: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'... + # $result={ 'date' => (defined($stickyDate)?$stickyDate:undef) }; + } + elsif( defined($state->{entries}{$filename}) && + defined($state->{entries}{$filename}{tag_or_date}) && + $state->{entries}{$filename}{tag_or_date} ne "" ) + { + my($tagOrDate)=$state->{entries}{$filename}{tag_or_date}; + if($tagOrDate=~/^T([^ ]+)\s*$/) + { + $result = { 'tag' => $1 }; + } + elsif($tagOrDate=~/^D([0-9.]+)\s*$/) + { + $result= { 'date' => $1 }; + } + else { - next if ( $file->{filehash} eq "deleted" and not defined ( $state->{entries}{$file->{name}} ) ); - next unless ( $file->{name} =~ s/^$state->{prependdir}// ); - push @{$state->{args}}, $file->{name}; + die "Unknown tag_or_date format\n"; } } + else + { + $result=getDirStickyInfo($filename); + } + + return $result; +} + +# Convert a stickyInfo (ref to a hash) as returned by resolveStickyInfo into +# a form appropriate for the sticky tag field of an Entries +# line (field index 5, 0-based). +sub getStickyTagOrDate +{ + my($stickyInfo)=@_; + + my $result; + if(defined($stickyInfo) && defined($stickyInfo->{tag})) + { + $result="T$stickyInfo->{tag}"; + } + # TODO: When/if we actually pick versions by {date} properly, + # also handle it here: + # "D$stickyInfo->{date}" (example: "D2011.04.13.20.37.07"). + else + { + $result=""; + } + + return $result; } # This method cleans up the $state variable after a command that uses arguments has run sub statecleanup { $state->{files} = []; + $state->{dirArgs} = {}; $state->{args} = []; $state->{arguments} = []; $state->{entries} = {}; + $state->{dirMap} = {}; } +# Return working directory CVS revision "1.X" out +# of the the working directory "entries" state, for the given filename. +# This is prefixed with a dash if the file is scheduled for removal +# when it is committed. sub revparse { my $filename = shift; - return undef unless ( defined ( $state->{entries}{$filename}{revision} ) ); - - return $1 if ( $state->{entries}{$filename}{revision} =~ /^1\.(\d+)/ ); - return -$1 if ( $state->{entries}{$filename}{revision} =~ /^-1\.(\d+)/ ); - - return undef; + return $state->{entries}{$filename}{revision}; } # This method takes a file hash and does a CVS "file transfer". Its @@ -2217,6 +2910,9 @@ sub filenamesplit return ( $filepart, $dirpart ); } +# Cleanup various junk in filename (try to canonicalize it), and +# add prependdir to accomodate running CVS client from a +# subdirectory (so the output is relative to top directory of the project). sub filecleanup { my $filename = shift; @@ -2228,11 +2924,36 @@ sub filecleanup return undef; } + if($filename eq ".") + { + $filename=""; + } $filename =~ s/^\.\///g; + $filename =~ s%/+%/%g; $filename = $state->{prependdir} . $filename; + $filename =~ s%/$%%; return $filename; } +# Remove prependdir from the path, so that is is relative to the directory +# the CVS client was started from, rather than the top of the project. +# Essentially the inverse of filecleanup(). +sub remove_prependdir +{ + my($path) = @_; + if(defined($state->{prependdir}) && $state->{prependdir} ne "") + { + my($pre)=$state->{prependdir}; + $pre=~s%/$%%; + if(!($path=~s%^\Q$pre\E/?%%)) + { + $log->fatal("internal error missing prependdir"); + die("internal error missing prependdir"); + } + } + return $path; +} + sub validateGitDir { if( !defined($state->{CVSROOT}) ) @@ -2444,42 +3165,14 @@ sub kopts_from_path } elsif( ($cfg->{gitcvs}{allbinary} =~ /^\s*guess\s*$/i) ) { - if( $srcType eq "sha1Or-k" && - !defined($name) ) + if( is_binary($srcType,$name) ) { - my ($ret)=$state->{entries}{$path}{options}; - if( !defined($ret) ) - { - $ret=$state->{opt}{k}; - if(defined($ret)) - { - $ret="-k$ret"; - } - else - { - $ret=""; - } - } - if( ! ($ret=~/^(|-kb|-kkv|-kkvl|-kk|-ko|-kv)$/) ) - { - print "E Bad -k option\n"; - $log->warn("Bad -k option: $ret"); - die "Error: Bad -k option: $ret\n"; - } - - return $ret; + $log->debug("... as binary"); + return "-kb"; } else { - if( is_binary($srcType,$name) ) - { - $log->debug("... as binary"); - return "-kb"; - } - else - { - $log->debug("... as text"); - } + $log->debug("... as text"); } } } @@ -2586,7 +3279,7 @@ sub open_blob_or_die die "Unable to open file $name: $!\n"; } } - elsif( $srcType eq "sha1" || $srcType eq "sha1Or-k" ) + elsif( $srcType eq "sha1" ) { unless ( defined ( $name ) and $name =~ /^[a-zA-Z0-9]{40}$/ ) { @@ -2674,6 +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 $out; +} + package GITCVS::log; @@ -2894,6 +3626,9 @@ sub new die "Git repo '$self->{git_path}' doesn't exist" unless ( -d $self->{git_path} ); + # Stores full sha1's for various branch/tag names, abbreviations, etc: + $self->{commitRefCache} = {}; + $self->{dbdriver} = $cfg->{gitcvs}{$state->{method}}{dbdriver} || $cfg->{gitcvs}{dbdriver} || "SQLite"; $self->{dbname} = $cfg->{gitcvs}{$state->{method}}{dbname} || @@ -2929,6 +3664,16 @@ sub new } # Construct the revision table if required + # The revision table stores an entry for each file, each time that file + # changes. + # numberOfRecords = O( numCommits * averageNumChangedFilesPerCommit ) + # This is not sufficient to support "-r {commithash}" for any + # files except files that were modified by that commit (also, + # some places in the code ignore/effectively strip out -r in + # some cases, before it gets passed to getmeta()). + # The "filehash" field typically has a git blob hash, but can also + # be set to "dead" to indicate that the given version of the file + # should not exist in the sandbox. unless ( $self->{tables}{$self->tablename("revision")} ) { my $tablename = $self->tablename("revision"); @@ -2956,6 +3701,15 @@ sub new } # Construct the head table if required + # The head table (along with the "last_commit" entry in the property + # table) is the persisted working state of the "sub update" subroutine. + # All of it's data is read entirely first, and completely recreated + # last, every time "sub update" runs. + # This is also used by "sub getmeta" when it is asked for the latest + # version of a file (as opposed to some specific version). + # Another way of thinking about it is as a single slice out of + # "revisions", giving just the most recent revision information for + # each file. unless ( $self->{tables}{$self->tablename("head")} ) { my $tablename = $self->tablename("head"); @@ -2978,6 +3732,7 @@ sub new } # Construct the properties table if required + # - "last_commit" - Used by "sub update". unless ( $self->{tables}{$self->tablename("properties")} ) { my $tablename = $self->tablename("properties"); @@ -2990,6 +3745,11 @@ sub new } # Construct the commitmsgs table if required + # The commitmsgs table is only used for merge commits, since + # "sub update" will only keep one branch of parents. Shortlogs + # for ignored commits (i.e. not on the chosen branch) will be used + # to construct a replacement "collapsed" merge commit message, + # which will be stored in this table. See also "sub commitmessage". unless ( $self->{tables}{$self->tablename("commitmsgs")} ) { my $tablename = $self->tablename("commitmsgs"); @@ -3021,6 +3781,14 @@ sub tablename =head2 update +Bring the database up to date with the latest changes from +the git repository. + +Internal working state is read out of the "head" table and the +"last_commit" property, then it updates "revisions" based on that, and +finally it writes the new internal state back to the "head" table +so it can be used as a starting point the next time update is called. + =cut sub update { @@ -3043,6 +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; } @@ -3060,45 +3830,10 @@ sub update push @git_log_params, $self->{module}; } # git-rev-list is the backend / plumbing version of git-log - open(GITLOG, '-|', 'git', 'rev-list', @git_log_params) or die "Cannot call git-rev-list: $!"; - - my @commits; - - my %commit = (); - - while ( <GITLOG> ) - { - chomp; - if (m/^commit\s+(.*)$/) { - # on ^commit lines put the just seen commit in the stack - # and prime things for the next one - if (keys %commit) { - my %copy = %commit; - unshift @commits, \%copy; - %commit = (); - } - my @parents = split(m/\s+/, $1); - $commit{hash} = shift @parents; - $commit{parents} = \@parents; - } elsif (m/^(\w+?):\s+(.*)$/ && !exists($commit{message})) { - # on rfc822-like lines seen before we see any message, - # lowercase the entry and put it in the hash as key-value - $commit{lc($1)} = $2; - } else { - # message lines - skip initial empty line - # and trim whitespace - if (!exists($commit{message}) && m/^\s*$/) { - # define it to mark the end of headers - $commit{message} = ''; - next; - } - s/^\s+//; s/\s+$//; # trim ws - $commit{message} .= $_ . "\n"; - } - } - close GITLOG; - - unshift @commits, \%commit if ( keys %commit ); + open(my $gitLogPipe, '-|', 'git', 'rev-list', @git_log_params) + or die "Cannot call git-rev-list: $!"; + my @commits=readCommits($gitLogPipe); + close $gitLogPipe; # Now all the commits are in the @commits bucket # ordered by time DESC. for each commit that needs processing, @@ -3116,7 +3851,7 @@ sub update my $commitcount = 0; # Load the head table into $head (for cached lookups during the update process) - foreach my $file ( @{$self->gethead()} ) + foreach my $file ( @{$self->gethead(1)} ) { $head->{$file->{name}} = $file; } @@ -3134,17 +3869,18 @@ sub update next; } elsif (@{$commit->{parents}} > 1) { # it is a merge commit, for each parent that is - # not $lastpicked, see if we can get a log + # not $lastpicked (not given a CVS revision number), + # see if we can get a log # from the merge-base to that parent to put it # in the message as a merge summary. my @parents = @{$commit->{parents}}; foreach my $parent (@parents) { - # git-merge-base can potentially (but rarely) throw - # several candidate merge bases. let's assume - # that the first one is the best one. if ($parent eq $lastpicked) { next; } + # git-merge-base can potentially (but rarely) throw + # several candidate merge bases. let's assume + # that the first one is the best one. my $base = eval { safe_pipe_capture('git', 'merge-base', $lastpicked, $parent); @@ -3196,7 +3932,7 @@ sub update } # convert the date to CVS-happy format - $commit->{date} = "$2 $1 $4 $3 $5" if ( $commit->{date} =~ /^\w+\s+(\w+)\s+(\d+)\s+(\d+:\d+:\d+)\s+(\d+)\s+([+-]\d+)$/ ); + my $cvsDate = convertToCvsDate($commit->{date}); if ( defined ( $lastpicked ) ) { @@ -3205,7 +3941,7 @@ sub update while ( <FILELIST> ) { chomp; - unless ( /^:\d{6}\s+\d{3}(\d)\d{2}\s+[a-zA-Z0-9]{40}\s+([a-zA-Z0-9]{40})\s+(\w)$/o ) + unless ( /^:\d{6}\s+([0-7]{6})\s+[a-f0-9]{40}\s+([a-f0-9]{40})\s+(\w)$/o ) { die("Couldn't process git-diff-tree line : $_"); } @@ -3215,11 +3951,7 @@ sub update # $log->debug("File mode=$mode, hash=$hash, change=$change, name=$name"); - my $git_perms = ""; - $git_perms .= "r" if ( $mode & 4 ); - $git_perms .= "w" if ( $mode & 2 ); - $git_perms .= "x" if ( $mode & 1 ); - $git_perms = "rw" if ( $git_perms eq "" ); + my $dbMode = convertToDbMode($mode); if ( $change eq "D" ) { @@ -3229,11 +3961,11 @@ sub update revision => $head->{$name}{revision} + 1, filehash => "deleted", commithash => $commit->{hash}, - modified => $commit->{date}, + modified => $cvsDate, author => $commit->{author}, - mode => $git_perms, + mode => $dbMode, }; - $self->insert_rev($name, $head->{$name}{revision}, $hash, $commit->{hash}, $commit->{date}, $commit->{author}, $git_perms); + $self->insert_rev($name, $head->{$name}{revision}, $hash, $commit->{hash}, $cvsDate, $commit->{author}, $dbMode); } elsif ( $change eq "M" || $change eq "T" ) { @@ -3243,11 +3975,11 @@ sub update revision => $head->{$name}{revision} + 1, filehash => $hash, commithash => $commit->{hash}, - modified => $commit->{date}, + modified => $cvsDate, author => $commit->{author}, - mode => $git_perms, + mode => $dbMode, }; - $self->insert_rev($name, $head->{$name}{revision}, $hash, $commit->{hash}, $commit->{date}, $commit->{author}, $git_perms); + $self->insert_rev($name, $head->{$name}{revision}, $hash, $commit->{hash}, $cvsDate, $commit->{author}, $dbMode); } elsif ( $change eq "A" ) { @@ -3257,11 +3989,11 @@ sub update revision => $head->{$name}{revision} ? $head->{$name}{revision}+1 : 1, filehash => $hash, commithash => $commit->{hash}, - modified => $commit->{date}, + modified => $cvsDate, author => $commit->{author}, - mode => $git_perms, + mode => $dbMode, }; - $self->insert_rev($name, $head->{$name}{revision}, $hash, $commit->{hash}, $commit->{date}, $commit->{author}, $git_perms); + $self->insert_rev($name, $head->{$name}{revision}, $hash, $commit->{hash}, $cvsDate, $commit->{author}, $dbMode); } else { @@ -3284,7 +4016,7 @@ sub update die("Couldn't process git-ls-tree line : $_"); } - my ( $git_perms, $git_type, $git_hash, $git_filename ) = ( $1, $2, $3, $4 ); + my ( $mode, $git_type, $git_hash, $git_filename ) = ( $1, $2, $3, $4 ); $seen_files->{$git_filename} = 1; @@ -3294,18 +4026,10 @@ sub update $head->{$git_filename}{mode} ); - if ( $git_perms =~ /^\d\d\d(\d)\d\d/o ) - { - $git_perms = ""; - $git_perms .= "r" if ( $1 & 4 ); - $git_perms .= "w" if ( $1 & 2 ); - $git_perms .= "x" if ( $1 & 1 ); - } else { - $git_perms = "rw"; - } + my $dbMode = convertToDbMode($mode); # unless the file exists with the same hash, we need to update it ... - unless ( defined($oldhash) and $oldhash eq $git_hash and defined($oldmode) and $oldmode eq $git_perms ) + unless ( defined($oldhash) and $oldhash eq $git_hash and defined($oldmode) and $oldmode eq $dbMode ) { my $newrevision = ( $oldrevision or 0 ) + 1; @@ -3314,13 +4038,13 @@ sub update revision => $newrevision, filehash => $git_hash, commithash => $commit->{hash}, - modified => $commit->{date}, + modified => $cvsDate, author => $commit->{author}, - mode => $git_perms, + mode => $dbMode, }; - $self->insert_rev($git_filename, $newrevision, $git_hash, $commit->{hash}, $commit->{date}, $commit->{author}, $git_perms); + $self->insert_rev($git_filename, $newrevision, $git_hash, $commit->{hash}, $cvsDate, $commit->{author}, $dbMode); } } close FILELIST; @@ -3333,10 +4057,10 @@ sub update $head->{$file}{revision}++; $head->{$file}{filehash} = "deleted"; $head->{$file}{commithash} = $commit->{hash}; - $head->{$file}{modified} = $commit->{date}; + $head->{$file}{modified} = $cvsDate; $head->{$file}{author} = $commit->{author}; - $self->insert_rev($file, $head->{$file}{revision}, $head->{$file}{filehash}, $commit->{hash}, $commit->{date}, $commit->{author}, $head->{$file}{mode}); + $self->insert_rev($file, $head->{$file}{revision}, $head->{$file}{filehash}, $commit->{hash}, $cvsDate, $commit->{author}, $head->{$file}{mode}); } } # END : "Detect deleted files" @@ -3367,13 +4091,94 @@ sub update ); } # invalidate the gethead cache - $self->{gethead_cache} = undef; + $self->clearCommitRefCaches(); # Ending exclusive lock here $self->{dbh}->commit() or die "Failed to commit changes to SQLite"; } +sub readCommits +{ + my $pipeHandle = shift; + my @commits; + + my %commit = (); + + while ( <$pipeHandle> ) + { + chomp; + if (m/^commit\s+(.*)$/) { + # on ^commit lines put the just seen commit in the stack + # and prime things for the next one + if (keys %commit) { + my %copy = %commit; + unshift @commits, \%copy; + %commit = (); + } + my @parents = split(m/\s+/, $1); + $commit{hash} = shift @parents; + $commit{parents} = \@parents; + } elsif (m/^(\w+?):\s+(.*)$/ && !exists($commit{message})) { + # on rfc822-like lines seen before we see any message, + # lowercase the entry and put it in the hash as key-value + $commit{lc($1)} = $2; + } else { + # message lines - skip initial empty line + # and trim whitespace + if (!exists($commit{message}) && m/^\s*$/) { + # define it to mark the end of headers + $commit{message} = ''; + next; + } + s/^\s+//; s/\s+$//; # trim ws + $commit{message} .= $_ . "\n"; + } + } + + unshift @commits, \%commit if ( keys %commit ); + + return @commits; +} + +sub convertToCvsDate +{ + my $date = shift; + # Convert from: "git rev-list --pretty" formatted date + # Convert to: "the format specified by RFC822 as modified by RFC1123." + # Example: 26 May 1997 13:01:40 -0400 + if( $date =~ /^\w+\s+(\w+)\s+(\d+)\s+(\d+:\d+:\d+)\s+(\d+)\s+([+-]\d+)$/ ) + { + $date = "$2 $1 $4 $3 $5"; + } + + return $date; +} + +sub convertToDbMode +{ + my $mode = shift; + + # NOTE: The CVS protocol uses a string similar "u=rw,g=rw,o=rw", + # but the database "mode" column historically (and currently) + # only stores the "rw" (for user) part of the string. + # FUTURE: It might make more sense to persist the raw + # octal mode (or perhaps the final full CVS form) instead of + # this half-converted form, but it isn't currently worth the + # backwards compatibility headaches. + + $mode=~/^\d\d(\d)\d{3}$/; + my $userBits=$1; + + my $dbMode = ""; + $dbMode .= "r" if ( $userBits & 4 ); + $dbMode .= "w" if ( $userBits & 2 ); + $dbMode .= "x" if ( $userBits & 1 ); + $dbMode = "rw" if ( $dbMode eq "" ); + + return $dbMode; +} + sub insert_rev { my $self = shift; @@ -3426,19 +4231,6 @@ sub insert_head $insert_head->execute($name, $revision, $filehash, $commithash, $modified, $author, $mode); } -sub _headrev -{ - my $self = shift; - my $filename = shift; - my $tablename = $self->tablename("head"); - - my $db_query = $self->{dbh}->prepare_cached("SELECT filehash, revision, mode FROM $tablename WHERE name=?",{},1); - $db_query->execute($filename); - my ( $hash, $revision, $mode ) = $db_query->fetchrow_array; - - return ( $hash, $revision, $mode ); -} - sub _get_prop { my $self = shift; @@ -3478,6 +4270,7 @@ sub _set_prop sub gethead { my $self = shift; + my $intRev = shift; my $tablename = $self->tablename("head"); return $self->{gethead_cache} if ( defined ( $self->{gethead_cache} ) ); @@ -3488,6 +4281,10 @@ sub gethead my $tree = []; while ( my $file = $db_query->fetchrow_hashref ) { + if(!$intRev) + { + $file->{revision} = "1.$file->{revision}" + } push @$tree, $file; } @@ -3496,26 +4293,222 @@ sub gethead return $tree; } +=head2 getAnyHead + +Returns a reference to an array of getmeta structures, one +per file in the specified tree hash. + +=cut + +sub getAnyHead +{ + my ($self,$hash) = @_; + + if(!defined($hash)) + { + return $self->gethead(); + } + + my @files; + { + open(my $filePipe, '-|', 'git', 'ls-tree', '-z', '-r', $hash) + or die("Cannot call git-ls-tree : $!"); + local $/ = "\0"; + @files=<$filePipe>; + close $filePipe; + } + + my $tree=[]; + my($line); + foreach $line (@files) + { + $line=~s/\0$//; + unless ( $line=~/^(\d+)\s+(\w+)\s+([a-zA-Z0-9]+)\t(.*)$/o ) + { + die("Couldn't process git-ls-tree line : $_"); + } + + my($mode, $git_type, $git_hash, $git_filename) = ($1, $2, $3, $4); + push @$tree, $self->getMetaFromCommithash($git_filename,$hash); + } + + return $tree; +} + +=head2 getRevisionDirMap + +A "revision dir map" contains all the plain-file filenames associated +with a particular revision (treeish), organized by directory: + + $type = $out->{$dir}{$fullName} + +The type of each is "F" (for ordinary file) or "D" (for directory, +for which the map $out->{$fullName} will also exist). + +=cut + +sub getRevisionDirMap +{ + my ($self,$ver)=@_; + + if(!defined($self->{revisionDirMapCache})) + { + $self->{revisionDirMapCache}={}; + } + + # Get file list (previously cached results are dependent on HEAD, + # but are early in each case): + my $cacheKey; + my (@fileList); + if( !defined($ver) || $ver eq "" ) + { + $cacheKey=""; + if( defined($self->{revisionDirMapCache}{$cacheKey}) ) + { + return $self->{revisionDirMapCache}{$cacheKey}; + } + + my @head = @{$self->gethead()}; + foreach my $file ( @head ) + { + next if ( $file->{filehash} eq "deleted" ); + + push @fileList,$file->{name}; + } + } + else + { + my ($hash)=$self->lookupCommitRef($ver); + if( !defined($hash) ) + { + return undef; + } + + $cacheKey=$hash; + if( defined($self->{revisionDirMapCache}{$cacheKey}) ) + { + return $self->{revisionDirMapCache}{$cacheKey}; + } + + open(my $filePipe, '-|', 'git', 'ls-tree', '-z', '-r', $hash) + or die("Cannot call git-ls-tree : $!"); + local $/ = "\0"; + while ( <$filePipe> ) + { + chomp; + unless ( /^(\d+)\s+(\w+)\s+([a-zA-Z0-9]+)\t(.*)$/o ) + { + die("Couldn't process git-ls-tree line : $_"); + } + + my($mode, $git_type, $git_hash, $git_filename) = ($1, $2, $3, $4); + + push @fileList, $git_filename; + } + close $filePipe; + } + + # Convert to normalized form: + my %revMap; + my $file; + foreach $file (@fileList) + { + my($dir) = ($file=~m%^(?:(.*)/)?([^/]*)$%); + $dir='' if(!defined($dir)); + + # parent directories: + # ... create empty dir maps for parent dirs: + my($td)=$dir; + while(!defined($revMap{$td})) + { + $revMap{$td}={}; + + my($tp)=($td=~m%^(?:(.*)/)?([^/]*)$%); + $tp='' if(!defined($tp)); + $td=$tp; + } + # ... add children to parent maps (now that they exist): + $td=$dir; + while($td ne "") + { + my($tp)=($td=~m%^(?:(.*)/)?([^/]*)$%); + $tp='' if(!defined($tp)); + + if(defined($revMap{$tp}{$td})) + { + if($revMap{$tp}{$td} ne 'D') + { + die "Weird file/directory inconsistency in $cacheKey"; + } + last; # loop exit + } + $revMap{$tp}{$td}='D'; + + $td=$tp; + } + + # file + $revMap{$dir}{$file}='F'; + } + + # Save in cache: + $self->{revisionDirMapCache}{$cacheKey}=\%revMap; + return $self->{revisionDirMapCache}{$cacheKey}; +} + =head2 getlog +See also gethistorydense(). + =cut sub getlog { my $self = shift; my $filename = shift; + my $revFilter = shift; + my $tablename = $self->tablename("revision"); + # Filters: + # TODO: date, state, or by specific logins filters? + # TODO: Handle comma-separated list of revFilter items, each item + # can be a range [only case currently handled] or individual + # rev or branch or "branch.". + # TODO: Adjust $db_query WHERE clause based on revFilter, instead of + # manually filtering the results of the query? + my ( $minrev, $maxrev ); + if( defined($revFilter) and + $state->{opt}{r} =~ /^(1.(\d+))?(::?)(1.(\d.+))?$/ ) + { + my $control = $3; + $minrev = $2; + $maxrev = $5; + $minrev++ if ( defined($minrev) and $control eq "::" ); + } + my $db_query = $self->{dbh}->prepare_cached("SELECT name, filehash, author, mode, revision, modified, commithash FROM $tablename WHERE name=? ORDER BY revision DESC",{},1); $db_query->execute($filename); + my $totalRevs=0; my $tree = []; while ( my $file = $db_query->fetchrow_hashref ) { + $totalRevs++; + if( defined($minrev) and $file->{revision} < $minrev ) + { + next; + } + if( defined($maxrev) and $file->{revision} > $maxrev ) + { + next; + } + + $file->{revision} = "1." . $file->{revision}; push @$tree, $file; } - return $tree; + return ($tree,$totalRevs); } =head2 getmeta @@ -3523,6 +4516,19 @@ sub getlog This function takes a filename (with path) argument and returns a hashref of metadata for that file. +There are several ways $revision can be specified: + + - A reference to hash that contains a "tag" that is the + actual revision (one of the below). TODO: Also allow it to + specify a "date" in the hash. + - undef, to refer to the latest version on the main branch. + - Full CVS client revision number (mapped to integer in DB, without the + "1." prefix), + - Complex CVS-compatible "special" revision number for + non-linear history (see comment below) + - git commit sha1 hash + - branch or tag name + =cut sub getmeta @@ -3533,22 +4539,347 @@ sub getmeta my $tablename_rev = $self->tablename("revision"); my $tablename_head = $self->tablename("head"); - my $db_query; - if ( defined($revision) and $revision =~ /^\d+$/ ) + if ( ref($revision) eq "HASH" ) { - $db_query = $self->{dbh}->prepare_cached("SELECT * FROM $tablename_rev WHERE name=? AND revision=?",{},1); - $db_query->execute($filename, $revision); + $revision = $revision->{tag}; } - elsif ( defined($revision) and $revision =~ /^[a-zA-Z0-9]{40}$/ ) + + # Overview of CVS revision numbers: + # + # General CVS numbering scheme: + # - Basic mainline branch numbers: "1.1", "1.2", "1.3", etc. + # - Result of "cvs checkin -r" (possible, but not really + # recommended): "2.1", "2.2", etc + # - Branch tag: "1.2.0.n", where "1.2" is revision it was branched + # from, "0" is a magic placeholder that identifies it as a + # branch tag instead of a version tag, and n is 2 times the + # branch number off of "1.2", starting with "2". + # - Version on a branch: "1.2.n.x", where "1.2" is branch-from, "n" + # is branch number off of "1.2" (like n above), and "x" is + # the version number on the branch. + # - Branches can branch off of branches: "1.3.2.7.4.1" (even number + # of components). + # - Odd "n"s are used by "vendor branches" that result + # from "cvs import". Vendor branches have additional + # strangeness in the sense that the main rcs "head" of the main + # branch will (temporarily until first normal commit) point + # to the version on the vendor branch, rather than the actual + # main branch. (FUTURE: This may provide an opportunity + # to use "strange" revision numbers for fast-forward-merged + # branch tip when CVS client is asking for the main branch.) + # + # git-cvsserver CVS-compatible special numbering schemes: + # - Currently git-cvsserver only tries to be identical to CVS for + # simple "1.x" numbers on the "main" branch (as identified + # by the module name that was originally cvs checkout'ed). + # - The database only stores the "x" part, for historical reasons. + # But most of the rest of the cvsserver preserves + # and thinks using the full revision number. + # - To handle non-linear history, it uses a version of the form + # "2.1.1.2000.b.b.b."..., where the 2.1.1.2000 is to help uniquely + # identify this as a special revision number, and there are + # 20 b's that together encode the sha1 git commit from which + # this version of this file originated. Each b is + # the numerical value of the corresponding byte plus + # 100. + # - "plus 100" avoids "0"s, and also reduces the + # likelyhood of a collision in the case that someone someday + # writes an import tool that tries to preserve original + # CVS revision numbers, and the original CVS data had done + # lots of branches off of branches and other strangeness to + # end up with a real version number that just happens to look + # like this special revision number form. Also, if needed + # there are several ways to extend/identify alternative encodings + # within the "2.1.1.2000" part if necessary. + # - Unlike real CVS revisions, you can't really reconstruct what + # relation a revision of this form has to other revisions. + # - FUTURE: TODO: Rework database somehow to make up and remember + # fully-CVS-compatible branches and branch version numbers. + + my $meta; + if ( defined($revision) ) { - $db_query = $self->{dbh}->prepare_cached("SELECT * FROM $tablename_rev WHERE name=? AND commithash=?",{},1); - $db_query->execute($filename, $revision); - } else { - $db_query = $self->{dbh}->prepare_cached("SELECT * FROM $tablename_head WHERE name=?",{},1); + if ( $revision =~ /^1\.(\d+)$/ ) + { + my ($intRev) = $1; + my $db_query; + $db_query = $self->{dbh}->prepare_cached( + "SELECT * FROM $tablename_rev WHERE name=? AND revision=?", + {},1); + $db_query->execute($filename, $intRev); + $meta = $db_query->fetchrow_hashref; + } + elsif ( $revision =~ /^2\.1\.1\.2000(\.[1-3][0-9][0-9]){20}$/ ) + { + my ($commitHash)=($revision=~/^2\.1\.1\.2000(.*)$/); + $commitHash=~s/\.([0-9]+)/sprintf("%02x",$1-100)/eg; + if($commitHash=~/^[0-9a-f]{40}$/) + { + return $self->getMetaFromCommithash($filename,$commitHash); + } + + # error recovery: fall back on head version below + print "E Failed to find $filename version=$revision or commit=$commitHash\n"; + $log->warning("failed get $revision with commithash=$commitHash"); + undef $revision; + } + elsif ( $revision =~ /^[0-9a-f]{40}$/ ) + { + # Try DB first. This is mostly only useful for req_annotate(), + # which only calls this for stuff that should already be in + # the DB. It is fairly likely to be a waste of time + # in most other cases [unless the file happened to be + # modified in $revision specifically], but + # it is probably in the noise compared to how long + # getMetaFromCommithash() will take. + my $db_query; + $db_query = $self->{dbh}->prepare_cached( + "SELECT * FROM $tablename_rev WHERE name=? AND commithash=?", + {},1); + $db_query->execute($filename, $revision); + $meta = $db_query->fetchrow_hashref; + + if(! $meta) + { + my($revCommit)=$self->lookupCommitRef($revision); + if($revCommit=~/^[0-9a-f]{40}$/) + { + return $self->getMetaFromCommithash($filename,$revCommit); + } + + # error recovery: nothing found: + print "E Failed to find $filename version=$revision\n"; + $log->warning("failed get $revision"); + return $meta; + } + } + else + { + my($revCommit)=$self->lookupCommitRef($revision); + if($revCommit=~/^[0-9a-f]{40}$/) + { + return $self->getMetaFromCommithash($filename,$revCommit); + } + + # error recovery: fall back on head version below + print "E Failed to find $filename version=$revision\n"; + $log->warning("failed get $revision"); + undef $revision; # Allow fallback + } + } + + if(!defined($revision)) + { + my $db_query; + $db_query = $self->{dbh}->prepare_cached( + "SELECT * FROM $tablename_head WHERE name=?",{},1); $db_query->execute($filename); + $meta = $db_query->fetchrow_hashref; + } + + if($meta) + { + $meta->{revision} = "1.$meta->{revision}"; + } + return $meta; +} + +sub getMetaFromCommithash +{ + my $self = shift; + my $filename = shift; + my $revCommit = shift; + + # NOTE: This function doesn't scale well (lots of forks), especially + # if you have many files that have not been modified for many commits + # (each git-rev-parse redoes a lot of work for each file + # that theoretically could be done in parallel by smarter + # graph traversal). + # + # TODO: Possible optimization strategies: + # - Solve the issue of assigning and remembering "real" CVS + # revision numbers for branches, and ensure the + # data structure can do this efficiently. Perhaps something + # similar to "git notes", and carefully structured to take + # advantage same-sha1-is-same-contents, to roll the same + # unmodified subdirectory data onto multiple commits? + # - Write and use a C tool that is like git-blame, but + # operates on multiple files with file granularity, instead + # of one file with line granularity. Cache + # most-recently-modified in $self->{commitRefCache}{$revCommit}. + # Try to be intelligent about how many files we do with + # one fork (perhaps one directory at a time, without recursion, + # and/or include directory as one line item, recurse from here + # instead of in C tool?). + # - Perhaps we could ask the DB for (filename,fileHash), + # and just guess that it is correct (that the file hadn't + # changed between $revCommit and the found commit, then + # changed back, confusing anything trying to interpret + # history). Probably need to add another index to revisions + # DB table for this. + # - NOTE: Trying to store all (commit,file) keys in DB [to + # find "lastModfiedCommit] (instead of + # just files that changed in each commit as we do now) is + # probably not practical from a disk space perspective. + + # Does the file exist in $revCommit? + # TODO: Include file hash in dirmap cache. + my($dirMap)=$self->getRevisionDirMap($revCommit); + my($dir,$file)=($filename=~m%^(?:(.*)/)?([^/]*$)%); + if(!defined($dir)) + { + $dir=""; + } + if( !defined($dirMap->{$dir}) || + !defined($dirMap->{$dir}{$filename}) ) + { + my($fileHash)="deleted"; + + my($retVal)={}; + $retVal->{name}=$filename; + $retVal->{filehash}=$fileHash; + + # not needed and difficult to compute: + $retVal->{revision}="0"; # $revision; + $retVal->{commithash}=$revCommit; + #$retVal->{author}=$commit->{author}; + #$retVal->{modified}=convertToCvsDate($commit->{date}); + #$retVal->{mode}=convertToDbMode($mode); + + return $retVal; + } + + my($fileHash)=safe_pipe_capture("git","rev-parse","$revCommit:$filename"); + chomp $fileHash; + if(!($fileHash=~/^[0-9a-f]{40}$/)) + { + die "Invalid fileHash '$fileHash' looking up" + ." '$revCommit:$filename'\n"; + } + + # information about most recent commit to modify $filename: + open(my $gitLogPipe, '-|', 'git', 'rev-list', + '--max-count=1', '--pretty', '--parents', + $revCommit, '--', $filename) + or die "Cannot call git-rev-list: $!"; + my @commits=readCommits($gitLogPipe); + close $gitLogPipe; + if(scalar(@commits)!=1) + { + die "Can't find most recent commit changing $filename\n"; + } + my($commit)=$commits[0]; + if( !defined($commit) || !defined($commit->{hash}) ) + { + return undef; + } + + # does this (commit,file) have a real assigned CVS revision number? + my $tablename_rev = $self->tablename("revision"); + my $db_query; + $db_query = $self->{dbh}->prepare_cached( + "SELECT * FROM $tablename_rev WHERE name=? AND commithash=?", + {},1); + $db_query->execute($filename, $commit->{hash}); + my($meta)=$db_query->fetchrow_hashref; + if($meta) + { + $meta->{revision} = "1.$meta->{revision}"; + return $meta; + } + + # fall back on special revision number + my($revision)=$commit->{hash}; + $revision=~s/(..)/'.' . (hex($1)+100)/eg; + $revision="2.1.1.2000$revision"; + + # meta data about $filename: + open(my $filePipe, '-|', 'git', 'ls-tree', '-z', + $commit->{hash}, '--', $filename) + or die("Cannot call git-ls-tree : $!"); + local $/ = "\0"; + my $line; + $line=<$filePipe>; + if(defined(<$filePipe>)) + { + die "Expected only a single file for git-ls-tree $filename\n"; + } + close $filePipe; + + chomp $line; + unless ( $line=~m/^(\d+)\s+(\w+)\s+([a-zA-Z0-9]+)\t(.*)$/o ) + { + die("Couldn't process git-ls-tree line : $line\n"); + } + my ( $mode, $git_type, $git_hash, $git_filename ) = ( $1, $2, $3, $4 ); + + # save result: + my($retVal)={}; + $retVal->{name}=$filename; + $retVal->{revision}=$revision; + $retVal->{filehash}=$fileHash; + $retVal->{commithash}=$revCommit; + $retVal->{author}=$commit->{author}; + $retVal->{modified}=convertToCvsDate($commit->{date}); + $retVal->{mode}=convertToDbMode($mode); + + return $retVal; +} + +=head2 lookupCommitRef + +Convert tag/branch/abbreviation/etc into a commit sha1 hash. Caches +the result so looking it up again is fast. + +=cut + +sub lookupCommitRef +{ + my $self = shift; + my $ref = shift; + + my $commitHash = $self->{commitRefCache}{$ref}; + if(defined($commitHash)) + { + return $commitHash; } - return $db_query->fetchrow_hashref; + $commitHash=safe_pipe_capture("git","rev-parse","--verify","--quiet", + $self->unescapeRefName($ref)); + $commitHash=~s/\s*$//; + if(!($commitHash=~/^[0-9a-f]{40}$/)) + { + $commitHash=undef; + } + + if( defined($commitHash) ) + { + my $type=safe_pipe_capture("git","cat-file","-t",$commitHash); + if( ! ($type=~/^commit\s*$/ ) ) + { + $commitHash=undef; + } + } + if(defined($commitHash)) + { + $self->{commitRefCache}{$ref}=$commitHash; + } + return $commitHash; +} + +=head2 clearCommitRefCaches + +Clears cached commit cache (sha1's for various tags/abbeviations/etc), +and related caches. + +=cut + +sub clearCommitRefCaches +{ + my $self = shift; + $self->{commitRefCache} = {}; + $self->{revisionDirMapCache} = undef; + $self->{gethead_cache} = undef; } =head2 commitmessage @@ -3583,46 +4914,128 @@ sub commitmessage return $message; } -=head2 gethistory +=head2 gethistorydense This function takes a filename (with path) argument and returns an arrayofarrays -containing revision,filehash,commithash ordered by revision descending +containing revision,filehash,commithash ordered by revision descending. + +This version of gethistory skips deleted entries -- so it is useful for annotate. +The 'dense' part is a reference to a '--dense' option available for git-rev-list +and other git tools that depend on it. + +See also getlog(). =cut -sub gethistory +sub gethistorydense { my $self = shift; my $filename = shift; my $tablename = $self->tablename("revision"); my $db_query; - $db_query = $self->{dbh}->prepare_cached("SELECT revision, filehash, commithash FROM $tablename WHERE name=? ORDER BY revision DESC",{},1); + $db_query = $self->{dbh}->prepare_cached("SELECT revision, filehash, commithash FROM $tablename WHERE name=? AND filehash!='deleted' ORDER BY revision DESC",{},1); $db_query->execute($filename); - return $db_query->fetchall_arrayref; + my $result = $db_query->fetchall_arrayref; + + my $i; + for($i=0 ; $i<scalar(@$result) ; $i++) + { + $result->[$i][0]="1." . $result->[$i][0]; + } + + return $result; } -=head2 gethistorydense +=head2 escapeRefName -This function takes a filename (with path) argument and returns an arrayofarrays -containing revision,filehash,commithash ordered by revision descending. +Apply an escape mechanism to compensate for characters that +git ref names can have that CVS tags can not. -This version of gethistory skips deleted entries -- so it is useful for annotate. -The 'dense' part is a reference to a '--dense' option available for git-rev-list -and other git tools that depend on it. +=cut +sub escapeRefName +{ + my($self,$refName)=@_; + + # CVS officially only allows [-_A-Za-z0-9] in tag names (or in + # many contexts it can also be a CVS revision number). + # + # Git tags commonly use '/' and '.' as well, but also handle + # anything else just in case: + # + # = "_-s-" For '/'. + # = "_-p-" For '.'. + # = "_-u-" For underscore, in case someone wants a literal "_-" in + # a tag name. + # = "_-xx-" Where "xx" is the hexadecimal representation of the + # desired ASCII character byte. (for anything else) + + if(! $refName=~/^[1-9][0-9]*(\.[1-9][0-9]*)*$/) + { + $refName=~s/_-/_-u--/g; + $refName=~s/\./_-p-/g; + $refName=~s%/%_-s-%g; + $refName=~s/[^-_a-zA-Z0-9]/sprintf("_-%02x-",$1)/eg; + } +} + +=head2 unescapeRefName + +Undo an escape mechanism to compensate for characters that +git ref names can have that CVS tags can not. =cut -sub gethistorydense +sub unescapeRefName { - my $self = shift; - my $filename = shift; - my $tablename = $self->tablename("revision"); + my($self,$refName)=@_; - my $db_query; - $db_query = $self->{dbh}->prepare_cached("SELECT revision, filehash, commithash FROM $tablename WHERE name=? AND filehash!='deleted' ORDER BY revision DESC",{},1); - $db_query->execute($filename); + # see escapeRefName() for description of escape mechanism. + + $refName=~s/_-([spu]|[0-9a-f][0-9a-f])-/unescapeRefNameChar($1)/eg; + + # allowed tag names + # TODO: Perhaps use git check-ref-format, with an in-process cache of + # validated names? + if( !( $refName=~m%^[^-][-a-zA-Z0-9_/.]*$% ) || + ( $refName=~m%[/.]$% ) || + ( $refName=~/\.lock$/ ) || + ( $refName=~m%\.\.|/\.|[[\\:?*~]|\@\{% ) ) # matching } + { + # Error: + $log->warn("illegal refName: $refName"); + $refName=undef; + } + return $refName; +} + +sub unescapeRefNameChar +{ + my($char)=@_; + + if($char eq "s") + { + $char="/"; + } + elsif($char eq "p") + { + $char="."; + } + elsif($char eq "u") + { + $char="_"; + } + elsif($char=~/^[0-9a-f][0-9a-f]$/) + { + $char=chr(hex($char)); + } + else + { + # Error case: Maybe it has come straight from user, and + # wasn't supposed to be escaped? Restore it the way we got it: + $char="_-$char-"; + } - return $db_query->fetchall_arrayref; + return $char; } =head2 in_array() |