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+#!/usr/bin/perl
+
+####
+#### This application is a CVS emulation layer for git.
+#### It is intended for clients to connect over SSH.
+#### See the documentation for more details.
+####
+#### Copyright The Open University UK - 2006.
+####
+#### Authors: Martyn Smith <martyn@catalyst.net.nz>
+#### Martin Langhoff <martin@laptop.org>
+####
+####
+#### Released under the GNU Public License, version 2.
+####
+####
+
+use 5.008;
+use strict;
+use warnings;
+use bytes;
+
+use Fcntl;
+use File::Temp qw/tempdir tempfile/;
+use File::Path qw/rmtree/;
+use File::Basename;
+use Getopt::Long qw(:config require_order no_ignore_case);
+
+my $VERSION = '@@GIT_VERSION@@';
+
+my $log = GITCVS::log->new();
+my $cfg;
+
+my $DATE_LIST = {
+ Jan => "01",
+ Feb => "02",
+ Mar => "03",
+ Apr => "04",
+ May => "05",
+ Jun => "06",
+ Jul => "07",
+ Aug => "08",
+ Sep => "09",
+ Oct => "10",
+ Nov => "11",
+ Dec => "12",
+};
+
+# Enable autoflush for STDOUT (otherwise the whole thing falls apart)
+$| = 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,
+ 'Questionable' => \&req_Questionable,
+ 'Argument' => \&req_Argument,
+ 'Argumentx' => \&req_Argument,
+ 'expand-modules' => \&req_expandmodules,
+ 'add' => \&req_add,
+ 'remove' => \&req_remove,
+ 'co' => \&req_co,
+ 'update' => \&req_update,
+ 'ci' => \&req_ci,
+ 'diff' => \&req_diff,
+ 'log' => \&req_log,
+ 'rlog' => \&req_log,
+ 'tag' => \&req_CATCHALL,
+ 'status' => \&req_status,
+ 'admin' => \&req_CATCHALL,
+ 'history' => \&req_CATCHALL,
+ 'watchers' => \&req_EMPTY,
+ 'editors' => \&req_EMPTY,
+ 'noop' => \&req_EMPTY,
+ 'annotate' => \&req_annotate,
+ 'Global_option' => \&req_Globaloption,
+};
+
+##############################################
+
+
+# $state holds all the bits of information the clients sends us that could
+# potentially be useful when it comes to actually _doing_ something.
+my $state = { prependdir => '' };
+
+# Work is for managing temporary working directory
+my $work =
+ {
+ state => undef, # undef, 1 (empty), 2 (with stuff)
+ workDir => undef,
+ index => undef,
+ emptyDir => undef,
+ tmpDir => undef
+ };
+
+$log->info("--------------- STARTING -----------------");
+
+my $usage =
+ "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".
+ " --export-all : Don't check for gitcvs.enabled in config\n".
+ " --version, -V : Print version information and exit\n".
+ " -h, -H : Print usage information and exit\n".
+ "\n".
+ "<directory> ... is a list of allowed directories. If no directories\n".
+ "are given, all are allowed. This is an additional restriction, gitcvs\n".
+ "access still needs to be enabled by the gitcvs.enabled config option.\n".
+ "Alternately, one directory may be specified in GIT_CVSSERVER_ROOT.\n";
+
+my @opts = ( 'h|H', 'version|V',
+ 'base-path=s', 'strict-paths', 'export-all' );
+GetOptions( $state, @opts )
+ or die $usage;
+
+if ($state->{version}) {
+ print "git-cvsserver version $VERSION\n";
+ exit;
+}
+if ($state->{help}) {
+ print $usage;
+ exit;
+}
+
+my $TEMP_DIR = tempdir( CLEANUP => 1 );
+$log->debug("Temporary directory is '$TEMP_DIR'");
+
+$state->{method} = 'ext';
+if (@ARGV) {
+ if ($ARGV[0] eq 'pserver') {
+ $state->{method} = 'pserver';
+ shift @ARGV;
+ } elsif ($ARGV[0] eq 'server') {
+ shift @ARGV;
+ }
+}
+
+# everything else is a directory
+$state->{allowed_roots} = [ @ARGV ];
+
+# don't export the whole system unless the users requests it
+if ($state->{'export-all'} && !@{$state->{allowed_roots}}) {
+ die "--export-all can only be used together with an explicit whitelist\n";
+}
+
+# Environment handling for running under git-shell
+if (exists $ENV{GIT_CVSSERVER_BASE_PATH}) {
+ if ($state->{'base-path'}) {
+ die "Cannot specify base path both ways.\n";
+ }
+ my $base_path = $ENV{GIT_CVSSERVER_BASE_PATH};
+ $state->{'base-path'} = $base_path;
+ $log->debug("Picked up base path '$base_path' from environment.\n");
+}
+if (exists $ENV{GIT_CVSSERVER_ROOT}) {
+ if (@{$state->{allowed_roots}}) {
+ die "Cannot specify roots both ways: @ARGV\n";
+ }
+ my $allowed_root = $ENV{GIT_CVSSERVER_ROOT};
+ $state->{allowed_roots} = [ $allowed_root ];
+ $log->debug("Picked up allowed root '$allowed_root' from environment.\n");
+}
+
+# if we are called with a pserver argument,
+# deal with the authentication cat before entering the
+# main loop
+if ($state->{method} eq 'pserver') {
+ my $line = <STDIN>; chomp $line;
+ unless( $line =~ /^BEGIN (AUTH|VERIFICATION) REQUEST$/) {
+ die "E Do not understand $line - expecting BEGIN AUTH REQUEST\n";
+ }
+ my $request = $1;
+ $line = <STDIN>; chomp $line;
+ unless (req_Root('root', $line)) { # reuse Root
+ print "E Invalid root $line \n";
+ exit 1;
+ }
+ $line = <STDIN>; chomp $line;
+ my $user = $line;
+ $line = <STDIN>; chomp $line;
+ my $password = $line;
+
+ if ($user eq 'anonymous') {
+ # "A" will be 1 byte, use length instead in case the
+ # encryption method ever changes (yeah, right!)
+ if (length($password) > 1 ) {
+ print "E Don't supply a password for the `anonymous' user\n";
+ print "I HATE YOU\n";
+ exit 1;
+ }
+
+ # Fall through to LOVE
+ } else {
+ # Trying to authenticate a user
+ if (not exists $cfg->{gitcvs}->{authdb}) {
+ print "E the repo config file needs a [gitcvs] section with an 'authdb' parameter set to the filename of the authentication database\n";
+ print "I HATE YOU\n";
+ exit 1;
+ }
+
+ my $authdb = $cfg->{gitcvs}->{authdb};
+
+ unless (-e $authdb) {
+ print "E The authentication database specified in [gitcvs.authdb] does not exist\n";
+ print "I HATE YOU\n";
+ exit 1;
+ }
+
+ my $auth_ok;
+ open my $passwd, "<", $authdb or die $!;
+ while (<$passwd>) {
+ if (m{^\Q$user\E:(.*)}) {
+ if (crypt($user, descramble($password)) eq $1) {
+ $auth_ok = 1;
+ }
+ };
+ }
+ close $passwd;
+
+ unless ($auth_ok) {
+ print "I HATE YOU\n";
+ exit 1;
+ }
+
+ # Fall through to LOVE
+ }
+
+ # For checking whether the user is anonymous on commit
+ $state->{user} = $user;
+
+ $line = <STDIN>; chomp $line;
+ unless ($line eq "END $request REQUEST") {
+ die "E Do not understand $line -- expecting END $request REQUEST\n";
+ }
+ print "I LOVE YOU\n";
+ exit if $request eq 'VERIFICATION'; # cvs login
+ # and now back to our regular programme...
+}
+
+# Keep going until the client closes the connection
+while (<STDIN>)
+{
+ chomp;
+
+ # Check to see if we've seen this method, and call appropriate function.
+ if ( /^([\w-]+)(?:\s+(.*))?$/ and defined($methods->{$1}) )
+ {
+ # use the $methods hash to call the appropriate sub for this command
+ #$log->info("Method : $1");
+ &{$methods->{$1}}($1,$2);
+ } else {
+ # log fatal because we don't understand this function. If this happens
+ # we're fairly screwed because we don't know if the client is expecting
+ # a response. If it is, the client will hang, we'll hang, and the whole
+ # thing will be custard.
+ $log->fatal("Don't understand command $_\n");
+ die("Unknown command $_");
+ }
+}
+
+$log->debug("Processing time : user=" . (times)[0] . " system=" . (times)[1]);
+$log->info("--------------- FINISH -----------------");
+
+chdir '/';
+exit 0;
+
+# Magic catchall method.
+# This is the method that will handle all commands we haven't yet
+# implemented. It simply sends a warning to the log file indicating a
+# command that hasn't been implemented has been invoked.
+sub req_CATCHALL
+{
+ my ( $cmd, $data ) = @_;
+ $log->warn("Unhandled command : req_$cmd : $data");
+}
+
+# This method invariably succeeds with an empty response.
+sub req_EMPTY
+{
+ print "ok\n";
+}
+
+# Root pathname \n
+# Response expected: no. Tell the server which CVSROOT to use. Note that
+# pathname is a local directory and not a fully qualified CVSROOT variable.
+# pathname must already exist; if creating a new root, use the init
+# request, not Root. pathname does not include the hostname of the server,
+# how to access the server, etc.; by the time the CVS protocol is in use,
+# connection, authentication, etc., are already taken care of. The Root
+# request must be sent only once, and it must be sent before any requests
+# other than Valid-responses, valid-requests, UseUnchanged, Set or init.
+sub req_Root
+{
+ my ( $cmd, $data ) = @_;
+ $log->debug("req_Root : $data");
+
+ unless ($data =~ m#^/#) {
+ print "error 1 Root must be an absolute pathname\n";
+ return 0;
+ }
+
+ my $cvsroot = $state->{'base-path'} || '';
+ $cvsroot =~ s#/+$##;
+ $cvsroot .= $data;
+
+ if ($state->{CVSROOT}
+ && ($state->{CVSROOT} ne $cvsroot)) {
+ print "error 1 Conflicting roots specified\n";
+ return 0;
+ }
+
+ $state->{CVSROOT} = $cvsroot;
+
+ $ENV{GIT_DIR} = $state->{CVSROOT} . "/";
+
+ if (@{$state->{allowed_roots}}) {
+ my $allowed = 0;
+ foreach my $dir (@{$state->{allowed_roots}}) {
+ next unless $dir =~ m#^/#;
+ $dir =~ s#/+$##;
+ if ($state->{'strict-paths'}) {
+ if ($ENV{GIT_DIR} =~ m#^\Q$dir\E/?$#) {
+ $allowed = 1;
+ last;
+ }
+ } elsif ($ENV{GIT_DIR} =~ m#^\Q$dir\E(/?$|/)#) {
+ $allowed = 1;
+ last;
+ }
+ }
+
+ unless ($allowed) {
+ print "E $ENV{GIT_DIR} does not seem to be a valid GIT repository\n";
+ print "E \n";
+ print "error 1 $ENV{GIT_DIR} is not a valid repository\n";
+ return 0;
+ }
+ }
+
+ unless (-d $ENV{GIT_DIR} && -e $ENV{GIT_DIR}.'HEAD') {
+ print "E $ENV{GIT_DIR} does not seem to be a valid GIT repository\n";
+ print "E \n";
+ print "error 1 $ENV{GIT_DIR} is not a valid repository\n";
+ return 0;
+ }
+
+ my @gitvars = `git config -l`;
+ if ($?) {
+ print "E problems executing git-config on the server -- this is not a git repository or the PATH is not set correctly.\n";
+ print "E \n";
+ print "error 1 - problem executing git-config\n";
+ return 0;
+ }
+ foreach my $line ( @gitvars )
+ {
+ next unless ( $line =~ /^(gitcvs)\.(?:(ext|pserver)\.)?([\w-]+)=(.*)$/ );
+ unless ($2) {
+ $cfg->{$1}{$3} = $4;
+ } else {
+ $cfg->{$1}{$2}{$3} = $4;
+ }
+ }
+
+ my $enabled = ($cfg->{gitcvs}{$state->{method}}{enabled}
+ || $cfg->{gitcvs}{enabled});
+ unless ($state->{'export-all'} ||
+ ($enabled && $enabled =~ /^\s*(1|true|yes)\s*$/i)) {
+ print "E GITCVS emulation needs to be enabled on this repo\n";
+ print "E the repo config file needs a [gitcvs] section added, and the parameter 'enabled' set to 1\n";
+ print "E \n";
+ print "error 1 GITCVS emulation disabled\n";
+ return 0;
+ }
+
+ my $logfile = $cfg->{gitcvs}{$state->{method}}{logfile} || $cfg->{gitcvs}{logfile};
+ if ( $logfile )
+ {
+ $log->setfile($logfile);
+ } else {
+ $log->nofile();
+ }
+
+ return 1;
+}
+
+# Global_option option \n
+# Response expected: no. Transmit one of the global options `-q', `-Q',
+# `-l', `-t', `-r', or `-n'. option must be one of those strings, no
+# variations (such as combining of options) are allowed. For graceful
+# handling of valid-requests, it is probably better to make new global
+# options separate requests, rather than trying to add them to this
+# request.
+sub req_Globaloption
+{
+ my ( $cmd, $data ) = @_;
+ $log->debug("req_Globaloption : $data");
+ $state->{globaloptions}{$data} = 1;
+}
+
+# Valid-responses request-list \n
+# Response expected: no. Tell the server what responses the client will
+# accept. request-list is a space separated list of tokens.
+sub req_Validresponses
+{
+ my ( $cmd, $data ) = @_;
+ $log->debug("req_Validresponses : $data");
+
+ # TODO : re-enable this, currently it's not particularly useful
+ #$state->{validresponses} = [ split /\s+/, $data ];
+}
+
+# valid-requests \n
+# Response expected: yes. Ask the server to send back a Valid-requests
+# response.
+sub req_validrequests
+{
+ my ( $cmd, $data ) = @_;
+
+ $log->debug("req_validrequests");
+
+ $log->debug("SEND : Valid-requests " . join(" ",sort keys %$methods));
+ $log->debug("SEND : ok");
+
+ print "Valid-requests " . join(" ",sort keys %$methods) . "\n";
+ print "ok\n";
+}
+
+# Directory local-directory \n
+# Additional data: repository \n. Response expected: no. Tell the server
+# what directory to use. The repository should be a directory name from a
+# previous server response. Note that this both gives a default for Entry
+# and Modified and also for ci and the other commands; normal usage is to
+# send Directory for each directory in which there will be an Entry or
+# Modified, and then a final Directory for the original directory, then the
+# command. The local-directory is relative to the top level at which the
+# command is occurring (i.e. the last Directory which is sent before the
+# command); to indicate that top level, `.' should be sent for
+# local-directory.
+sub req_Directory
+{
+ my ( $cmd, $data ) = @_;
+
+ my $repository = <STDIN>;
+ chomp $repository;
+
+
+ $state->{localdir} = $data;
+ $state->{repository} = $repository;
+ $state->{path} = $repository;
+ $state->{path} =~ s/^\Q$state->{CVSROOT}\E\///;
+ $state->{module} = $1 if ($state->{path} =~ s/^(.*?)(\/|$)//);
+ $state->{path} .= "/" if ( $state->{path} =~ /\S/ );
+
+ $state->{directory} = $state->{localdir};
+ $state->{directory} = "" if ( $state->{directory} eq "." );
+ $state->{directory} .= "/" if ( $state->{directory} =~ /\S/ );
+
+ if ( (not defined($state->{prependdir}) or $state->{prependdir} eq '') and $state->{localdir} eq "." and $state->{path} =~ /\S/ )
+ {
+ $log->info("Setting prepend to '$state->{path}'");
+ $state->{prependdir} = $state->{path};
+ my %entries;
+ foreach my $entry ( keys %{$state->{entries}} )
+ {
+ $entries{$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} ) )
+ {
+ $log->debug("Prepending '$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
+# most recently specified with Directory. If the user is operating on only
+# some files in a directory, Entry requests for only those files need be
+# included. If an Entry request is sent without Modified, Is-modified, or
+# Unchanged, it means the file is lost (does not exist in the working
+# directory). If both Entry and one of Modified, Is-modified, or Unchanged
+# are sent for the same file, Entry must be sent first. For a given file,
+# one can send Modified, Is-modified, or Unchanged, but not more than one
+# of these three.
+sub req_Entry
+{
+ my ( $cmd, $data ) = @_;
+
+ #$log->debug("req_Entry : $data");
+
+ my @data = split(/\//, $data, -1);
+
+ $state->{entries}{$state->{directory}.$data[1]} = {
+ revision => $data[2],
+ conflict => $data[3],
+ options => $data[4],
+ tag_or_date => $data[5],
+ };
+
+ $state->{dirMap}{$state->{directory}}{names}{$data[1]} = 'F';
+
+ $log->info("Received entry line '$data' => '" . $state->{directory} . $data[1] . "'");
+}
+
+# Questionable filename \n
+# Response expected: no. Additional data: no. Tell the server to check
+# whether filename should be ignored, and if not, next time the server
+# sends responses, send (in a M response) `?' followed by the directory and
+# filename. filename must not contain `/'; it needs to be a file in the
+# directory named by the most recent Directory request.
+sub req_Questionable
+{
+ my ( $cmd, $data ) = @_;
+
+ $log->debug("req_Questionable : $data");
+ $state->{entries}{$state->{directory}.$data}{questionable} = 1;
+}
+
+# add \n
+# Response expected: yes. Add a file or directory. This uses any previous
+# Argument, Directory, Entry, or Modified requests, if they have been sent.
+# The last Directory sent specifies the working directory at the time of
+# the operation. To add a directory, send the directory to be added using
+# Directory and Argument requests.
+sub req_add
+{
+ my ( $cmd, $data ) = @_;
+
+ argsplit("add");
+
+ my $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log);
+ $updater->update();
+
+ my $addcount = 0;
+
+ foreach my $filename ( @{$state->{args}} )
+ {
+ $filename = filecleanup($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=~/^-/))
+ {
+ # previously removed file, add back
+ $log->info("added file $filename was previously removed, send $meta->{revision}");
+
+ print "MT +updated\n";
+ print "MT text U \n";
+ print "MT fname $filename\n";
+ print "MT newline\n";
+ print "MT -updated\n";
+
+ unless ( $state->{globaloptions}{-n} )
+ {
+ my ( $filepart, $dirpart ) = filenamesplit($filename,1);
+
+ print "Created $dirpart\n";
+ print $state->{CVSROOT} . "/$state->{module}/$filename\n";
+
+ # this is an "entries" line
+ my $kopts = kopts_from_path($filename,"sha1",$meta->{filehash});
+ 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=$meta->{mode}\n";
+ # transmit file
+ transmitfile($meta->{filehash});
+ }
+
+ next;
+ }
+
+ unless ( defined ( $state->{entries}{$filename}{modified_filename} ) )
+ {
+ print "E cvs add: nothing known about `$filename'\n";
+ next;
+ }
+ # TODO : check we're not squashing an already existing file
+ if ( defined ( $state->{entries}{$filename}{revision} ) )
+ {
+ print "E cvs add: `$filename' has already been entered\n";
+ next;
+ }
+
+ my ( $filepart, $dirpart ) = filenamesplit($filename, 1);
+
+ print "E cvs add: scheduling file `$filename' for addition\n";
+
+ print "Checked-in $dirpart\n";
+ print "$filename\n";
+ my $kopts = kopts_from_path($filename,"file",
+ $state->{entries}{$filename}{modified_filename});
+ print "/$filepart/0//$kopts/" .
+ getStickyTagOrDate($stickyInfo) . "\n";
+
+ my $requestedKopts = $state->{opt}{k};
+ if(defined($requestedKopts))
+ {
+ $requestedKopts = "-k$requestedKopts";
+ }
+ else
+ {
+ $requestedKopts = "";
+ }
+ if( $kopts ne $requestedKopts )
+ {
+ $log->warn("Ignoring requested -k='$requestedKopts'"
+ . " for '$filename'; detected -k='$kopts' instead");
+ #TODO: Also have option to send warning to user?
+ }
+
+ $addcount++;
+ }
+
+ if ( $addcount == 1 )
+ {
+ print "E cvs add: use `cvs commit' to add this file permanently\n";
+ }
+ elsif ( $addcount > 1 )
+ {
+ print "E cvs add: use `cvs commit' to add these files permanently\n";
+ }
+
+ print "ok\n";
+}
+
+# remove \n
+# Response expected: yes. Remove a file. This uses any previous Argument,
+# Directory, Entry, or Modified requests, if they have been sent. The last
+# Directory sent specifies the working directory at the time of the
+# operation. Note that this request does not actually do anything to the
+# repository; the only effect of a successful remove request is to supply
+# the client with a new entries line containing `-' to indicate a removed
+# file. In fact, the client probably could perform this operation without
+# contacting the server, although using remove may cause the server to
+# perform a few more checks. The client sends a subsequent ci request to
+# actually record the removal in the repository.
+sub req_remove
+{
+ my ( $cmd, $data ) = @_;
+
+ argsplit("remove");
+
+ # Grab a handle to the SQLite db and do any necessary updates
+ my $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log);
+ $updater->update();
+
+ #$log->debug("add state : " . Dumper($state));
+
+ my $rmcount = 0;
+
+ foreach my $filename ( @{$state->{args}} )
+ {
+ $filename = filecleanup($filename);
+
+ if ( defined ( $state->{entries}{$filename}{unchanged} ) or defined ( $state->{entries}{$filename}{modified_filename} ) )
+ {
+ print "E cvs remove: file `$filename' still in working directory\n";
+ next;
+ }
+
+ # only from entries
+ my $stickyInfo = resolveStickyInfo($filename);
+
+ my $meta = $updater->getmeta($filename,$stickyInfo);
+ my $wrev = revparse($filename);
+
+ unless ( defined ( $wrev ) )
+ {
+ print "E cvs remove: nothing known about `$filename'\n";
+ next;
+ }
+
+ if ( defined($wrev) and ($wrev=~/^-/) )
+ {
+ print "E cvs remove: file `$filename' already scheduled for removal\n";
+ next;
+ }
+
+ 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";
+ next;
+ }
+
+
+ my ( $filepart, $dirpart ) = filenamesplit($filename, 1);
+
+ print "E cvs remove: scheduling `$filename' for removal\n";
+
+ print "Checked-in $dirpart\n";
+ print "$filename\n";
+ my $kopts = kopts_from_path($filename,"sha1",$meta->{filehash});
+ print "/$filepart/-$wrev//$kopts/" . getStickyTagOrDate($stickyInfo) . "\n";
+
+ $rmcount++;
+ }
+
+ if ( $rmcount == 1 )
+ {
+ print "E cvs remove: use `cvs commit' to remove this file permanently\n";
+ }
+ elsif ( $rmcount > 1 )
+ {
+ print "E cvs remove: use `cvs commit' to remove these files permanently\n";
+ }
+
+ print "ok\n";
+}
+
+# Modified filename \n
+# Response expected: no. Additional data: mode, \n, file transmission. Send
+# the server a copy of one locally modified file. filename is a file within
+# the most recent directory sent with Directory; it must not contain `/'.
+# If the user is operating on only some files in a directory, only those
+# files need to be included. This can also be sent without Entry, if there
+# is no entry for the file.
+sub req_Modified
+{
+ my ( $cmd, $data ) = @_;
+
+ my $mode = <STDIN>;
+ defined $mode
+ or (print "E end of file reading mode for $data\n"), return;
+ chomp $mode;
+ my $size = <STDIN>;
+ defined $size
+ or (print "E end of file reading size of $data\n"), return;
+ chomp $size;
+
+ # Grab config information
+ my $blocksize = 8192;
+ my $bytesleft = $size;
+ my $tmp;
+
+ # Get a filehandle/name to write it to
+ my ( $fh, $filename ) = tempfile( DIR => $TEMP_DIR );
+
+ # Loop over file data writing out to temporary file.
+ while ( $bytesleft )
+ {
+ $blocksize = $bytesleft if ( $bytesleft < $blocksize );
+ read STDIN, $tmp, $blocksize;
+ print $fh $tmp;
+ $bytesleft -= $blocksize;
+ }
+
+ close $fh
+ or (print "E failed to write temporary, $filename: $!\n"), return;
+
+ # Ensure we have something sensible for the file mode
+ if ( $mode =~ /u=(\w+)/ )
+ {
+ $mode = $1;
+ } else {
+ $mode = "rw";
+ }
+
+ # Save the file data in $state
+ $state->{entries}{$state->{directory}.$data}{modified_filename} = $filename;
+ $state->{entries}{$state->{directory}.$data}{modified_mode} = $mode;
+ $state->{entries}{$state->{directory}.$data}{modified_hash} = `git hash-object $filename`;
+ $state->{entries}{$state->{directory}.$data}{modified_hash} =~ s/\s.*$//s;
+
+ #$log->debug("req_Modified : file=$data mode=$mode size=$size");
+}
+
+# Unchanged filename \n
+# Response expected: no. Tell the server that filename has not been
+# modified in the checked out directory. The filename is a file within the
+# most recent directory sent with Directory; it must not contain `/'.
+sub req_Unchanged
+{
+ my ( $cmd, $data ) = @_;
+
+ $state->{entries}{$state->{directory}.$data}{unchanged} = 1;
+
+ #$log->debug("req_Unchanged : $data");
+}
+
+# Argument text \n
+# Response expected: no. Save argument for use in a subsequent command.
+# Arguments accumulate until an argument-using command is given, at which
+# point they are forgotten.
+# Argumentx text \n
+# Response expected: no. Append \n followed by text to the current argument
+# being saved.
+sub req_Argument
+{
+ my ( $cmd, $data ) = @_;
+
+ # Argumentx means: append to last Argument (with a newline in front)
+
+ $log->debug("$cmd : $data");
+
+ if ( $cmd eq 'Argumentx') {
+ ${$state->{arguments}}[$#{$state->{arguments}}] .= "\n" . $data;
+ } else {
+ push @{$state->{arguments}}, $data;
+ }
+}
+
+# expand-modules \n
+# Response expected: yes. Expand the modules which are specified in the
+# arguments. Returns the data in Module-expansion responses. Note that the
+# server can assume that this is checkout or export, not rtag or rdiff; the
+# latter do not access the working directory and thus have no need to
+# expand modules on the client side. Expand may not be the best word for
+# what this request does. It does not necessarily tell you all the files
+# contained in a module, for example. Basically it is a way of telling you
+# which working directories the server needs to know about in order to
+# handle a checkout of the specified modules. For example, suppose that the
+# server has a module defined by
+# aliasmodule -a 1dir
+# That is, one can check out aliasmodule and it will take 1dir in the
+# repository and check it out to 1dir in the working directory. Now suppose
+# the client already has this module checked out and is planning on using
+# the co request to update it. Without using expand-modules, the client
+# would have two bad choices: it could either send information about all
+# working directories under the current directory, which could be
+# unnecessarily slow, or it could be ignorant of the fact that aliasmodule
+# stands for 1dir, and neglect to send information for 1dir, which would
+# lead to incorrect operation. With expand-modules, the client would first
+# ask for the module to be expanded:
+sub req_expandmodules
+{
+ my ( $cmd, $data ) = @_;
+
+ argsplit();
+
+ $log->debug("req_expandmodules : " . ( defined($data) ? $data : "[NULL]" ) );
+
+ unless ( ref $state->{arguments} eq "ARRAY" )
+ {
+ print "ok\n";
+ return;
+ }
+
+ foreach my $module ( @{$state->{arguments}} )
+ {
+ $log->debug("SEND : Module-expansion $module");
+ print "Module-expansion $module\n";
+ }
+
+ print "ok\n";
+ statecleanup();
+}
+
+# co \n
+# Response expected: yes. Get files from the repository. This uses any
+# previous Argument, Directory, Entry, or Modified requests, if they have
+# been sent. Arguments to this command are module names; the client cannot
+# know what directories they correspond to except by (1) just sending the
+# co request, and then seeing what directory names the server sends back in
+# its responses, and (2) the expand-modules request.
+sub req_co
+{
+ my ( $cmd, $data ) = @_;
+
+ argsplit("co");
+
+ # Provide list of modules, if -c was used.
+ if (exists $state->{opt}{c}) {
+ my $showref = `git show-ref --heads`;
+ for my $line (split '\n', $showref) {
+ if ( $line =~ m% refs/heads/(.*)$% ) {
+ print "M $1\t$1\n";
+ }
+ }
+ print "ok\n";
+ return 1;
+ }
+
+ my $stickyInfo = { 'tag' => $state->{opt}{r},
+ 'date' => $state->{opt}{D} };
+
+ my $module = $state->{args}[0];
+ $state->{module} = $module;
+ my $checkout_path = $module;
+
+ # use the user specified directory if we're given it
+ $checkout_path = $state->{opt}{d} if ( exists ( $state->{opt}{d} ) );
+
+ $log->debug("req_co : " . ( defined($data) ? $data : "[NULL]" ) );
+
+ $log->info("Checking out module '$module' ($state->{CVSROOT}) to '$checkout_path'");
+
+ $ENV{GIT_DIR} = $state->{CVSROOT} . "/";
+
+ # Grab a handle to the SQLite db and do any necessary updates
+ my $updater = GITCVS::updater->new($state->{CVSROOT}, $module, $log);
+ $updater->update();
+
+ my $headHash;
+ if( defined($stickyInfo) && defined($stickyInfo->{tag}) )
+ {
+ $headHash = $updater->lookupCommitRef($stickyInfo->{tag});
+ if( !defined($headHash) )
+ {
+ print "error 1 no such tag `$stickyInfo->{tag}'\n";
+ cleanupWorkTree();
+ exit;
+ }
+ }
+
+ $checkout_path =~ s|/$||; # get rid of trailing slashes
+
+ my %seendirs = ();
+ my $lastdir ='';
+
+ 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" );
+
+ my $fullName = $git->{name};
+ ( $git->{name}, $git->{dir} ) = filenamesplit($git->{name});
+
+ 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";
+
+ # print some information to the client
+ if ( defined ( $git->{dir} ) and $git->{dir} ne "./" )
+ {
+ print "M U $checkout_path/$git->{dir}$git->{name}\n";
+ } else {
+ print "M U $checkout_path/$git->{name}\n";
+ }
+
+ # instruct client we're sending a file to put in this path
+ print "Created $checkout_path/" . ( defined ( $git->{dir} ) and $git->{dir} ne "./" ? $git->{dir} . "/" : "" ) . "\n";
+
+ print $state->{CVSROOT} . "/$module/" . ( defined ( $git->{dir} ) and $git->{dir} ne "./" ? $git->{dir} . "/" : "" ) . "$git->{name}\n";
+
+ # this is an "entries" line
+ my $kopts = kopts_from_path($fullName,"sha1",$git->{filehash});
+ print "/$git->{name}/$git->{revision}//$kopts/" .
+ getStickyTagOrDate($stickyInfo) . "\n";
+ # permissions
+ print "u=$git->{mode},g=$git->{mode},o=$git->{mode}\n";
+
+ # transmit file
+ transmitfile($git->{filehash});
+ }
+
+ print "ok\n";
+
+ statecleanup();
+}
+
+# used by req_co and req_update to set up directories for files
+# recursively handles parents
+sub prepDirForOutput
+{
+ my ($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
+# been sent. The last Directory sent specifies the working directory at the
+# time of the operation. The -I option is not used--files which the client
+# can decide whether to ignore are not mentioned and the client sends the
+# Questionable request for others.
+sub req_update
+{
+ my ( $cmd, $data ) = @_;
+
+ $log->debug("req_update : " . ( defined($data) ? $data : "[NULL]" ));
+
+ argsplit("update");
+
+ #
+ # It may just be a client exploring the available heads/modules
+ # in that case, list them as top level directories and leave it
+ # at that. Eclipse uses this technique to offer you a list of
+ # projects (heads in this case) to checkout.
+ #
+ if ($state->{module} eq '') {
+ my $showref = `git show-ref --heads`;
+ print "E cvs update: Updating .\n";
+ for my $line (split '\n', $showref) {
+ if ( $line =~ m% refs/heads/(.*)$% ) {
+ print "E cvs update: New directory `$1'\n";
+ }
+ }
+ print "ok\n";
+ return 1;
+ }
+
+
+ # Grab a handle to the SQLite db and do any necessary updates
+ my $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log);
+
+ $updater->update();
+
+ argsfromdir($updater);
+
+ #$log->debug("update state : " . Dumper($state));
+
+ my($repoDir);
+ $repoDir=$state->{CVSROOT} . "/$state->{module}/$state->{prependdir}";
+
+ my %seendirs = ();
+
+ # foreach file specified on the command line ...
+ foreach my $argsFilename ( @{$state->{args}} )
+ {
+ my $filename;
+ $filename = filecleanup($argsFilename);
+
+ $log->debug("Processing file $filename");
+
+ # if we have a -C we should pretend we never saw modified stuff
+ if ( exists ( $state->{opt}{C} ) )
+ {
+ delete $state->{entries}{$filename}{modified_hash};
+ delete $state->{entries}{$filename}{modified_filename};
+ $state->{entries}{$filename}{unchanged} = 1;
+ }
+
+ 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} ) ) {
+ if ( defined ( $meta->{revision} ) ) {
+ $log->info("Printing '$filename' revision " . $meta->{revision});
+
+ transmitfile($meta->{filehash}, { print => 1 });
+ }
+
+ next;
+ }
+
+ # Directories:
+ prepDirForOutput(
+ dirname($argsFilename),
+ $repoDir,
+ ".",
+ \%seendirs,
+ "update",
+ $state->{dirArgs} );
+
+ my $wrev = revparse($filename);
+
+ if ( ! defined $meta )
+ {
+ $meta = {
+ name => $filename,
+ revision => '0',
+ filehash => 'added'
+ };
+ if($wrev ne "0")
+ {
+ $meta->{filehash}='deleted';
+ }
+ }
+
+ my $oldmeta = $meta;
+
+ # If the working copy is an old revision, lets get that version too for comparison.
+ my $oldWrev=$wrev;
+ if(defined($oldWrev))
+ {
+ $oldWrev=~s/^-//;
+ if($oldWrev ne $meta->{revision})
+ {
+ $oldmeta = $updater->getmeta($filename, $oldWrev);
+ }
+ }
+
+ #$log->debug("Target revision is $meta->{revision}, current working revision is $wrev");
+
+ # Files are up to date if the working copy and repo copy have the same revision,
+ # and the working copy is unmodified _and_ the user hasn't specified -C
+ next if ( defined ( $wrev )
+ and defined($meta->{revision})
+ and $wrev eq $meta->{revision}
+ and $state->{entries}{$filename}{unchanged}
+ and not exists ( $state->{opt}{C} ) );
+
+ # If the working copy and repo copy have the same revision,
+ # but the working copy is modified, tell the client it's modified
+ if ( defined ( $wrev )
+ and defined($meta->{revision})
+ and $wrev eq $meta->{revision}
+ and $wrev ne "0"
+ and defined($state->{entries}{$filename}{modified_hash})
+ and not exists ( $state->{opt}{C} ) )
+ {
+ $log->info("Tell the client the file is modified");
+ print "MT text M \n";
+ print "MT fname $filename\n";
+ print "MT newline\n";
+ next;
+ }
+
+ 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)");
+
+ print "E cvs update: `$filename' is no longer in the repository\n";
+ # Don't want to actually _DO_ the update if -n specified
+ unless ( $state->{globaloptions}{-n} ) {
+ print "Removed $dirpart\n";
+ print "$filepart\n";
+ }
+ }
+ elsif ( not defined ( $state->{entries}{$filename}{modified_hash} )
+ or $state->{entries}{$filename}{modified_hash} eq $oldmeta->{filehash}
+ or $meta->{filehash} eq 'added' )
+ {
+ # normal update, just send the new revision (either U=Update,
+ # or A=Add, or R=Remove)
+ if ( defined($wrev) && ($wrev=~/^-/) )
+ {
+ $log->info("Tell the client the file is scheduled for removal");
+ print "MT text R \n";
+ print "MT fname $filename\n";
+ print "MT newline\n";
+ next;
+ }
+ elsif ( (!defined($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";
+ print "MT fname $filename\n";
+ print "MT newline\n";
+ next;
+
+ }
+ else {
+ $log->info("UpdatingX3 '$filename' to ".$meta->{revision});
+ print "MT +updated\n";
+ print "MT text U \n";
+ print "MT fname $filename\n";
+ print "MT newline\n";
+ print "MT -updated\n";
+ }
+
+ my ( $filepart, $dirpart ) = filenamesplit($filename,1);
+
+ # Don't want to actually _DO_ the update if -n specified
+ unless ( $state->{globaloptions}{-n} )
+ {
+ if ( defined ( $wrev ) )
+ {
+ # instruct client we're sending a file to put in this path as a replacement
+ print "Update-existing $dirpart\n";
+ $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
+
+ $log->debug("Creating new file 'Created $dirpart'");
+ print "Created $dirpart\n";
+ }
+ print $state->{CVSROOT} . "/$state->{module}/$filename\n";
+
+ # this is an "entries" line
+ my $kopts = kopts_from_path($filename,"sha1",$meta->{filehash});
+ 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}");
+ print "u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}\n";
+
+ # transmit file
+ transmitfile($meta->{filehash});
+ }
+ } else {
+ my ( $filepart, $dirpart ) = filenamesplit($meta->{name},1);
+
+ my $mergeDir = setupTmpDir();
+
+ my $file_local = $filepart . ".mine";
+ my $mergedFile = "$mergeDir/$file_local";
+ system("ln","-s",$state->{entries}{$filename}{modified_filename}, $file_local);
+ my $file_old = $filepart . "." . $oldmeta->{revision};
+ transmitfile($oldmeta->{filehash}, { targetfile => $file_old });
+ my $file_new = $filepart . "." . $meta->{revision};
+ transmitfile($meta->{filehash}, { targetfile => $file_new });
+
+ # 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 $oldmeta->{revision} and $meta->{revision} into $filename\n";
+
+ $log->debug("Temporary directory for merge is $mergeDir");
+
+ my $return = system("git", "merge-file", $file_local, $file_old, $file_new);
+ $return >>= 8;
+
+ cleanupTmpDir();
+
+ if ( $return == 0 )
+ {
+ $log->info("Merged successfully");
+ print "M M $filename\n";
+ $log->debug("Merged $dirpart");
+
+ # Don't want to actually _DO_ the update if -n specified
+ unless ( $state->{globaloptions}{-n} )
+ {
+ print "Merged $dirpart\n";
+ $log->debug($state->{CVSROOT} . "/$state->{module}/$filename");
+ print $state->{CVSROOT} . "/$state->{module}/$filename\n";
+ my $kopts = kopts_from_path("$dirpart/$filepart",
+ "file",$mergedFile);
+ $log->debug("/$filepart/$meta->{revision}//$kopts/");
+ my $entriesLine="/$filepart/$meta->{revision}//$kopts/";
+ $entriesLine .= getStickyTagOrDate($stickyInfo);
+ print "$entriesLine\n";
+ }
+ }
+ elsif ( $return == 1 )
+ {
+ $log->info("Merged with conflicts");
+ print "E cvs update: conflicts found in $filename\n";
+ print "M C $filename\n";
+
+ # Don't want to actually _DO_ the update if -n specified
+ unless ( $state->{globaloptions}{-n} )
+ {
+ print "Merged $dirpart\n";
+ print $state->{CVSROOT} . "/$state->{module}/$filename\n";
+ my $kopts = kopts_from_path("$dirpart/$filepart",
+ "file",$mergedFile);
+ my $entriesLine = "/$filepart/$meta->{revision}/+/$kopts/";
+ $entriesLine .= getStickyTagOrDate($stickyInfo);
+ print "$entriesLine\n";
+ }
+ }
+ else
+ {
+ $log->warn("Merge failed");
+ next;
+ }
+
+ # Don't want to actually _DO_ the update if -n specified
+ unless ( $state->{globaloptions}{-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";
+
+ # transmit file, format is single integer on a line by itself (file
+ # size) followed by the file contents
+ # TODO : we should copy files in blocks
+ my $data = `cat $mergedFile`;
+ $log->debug("File size : " . length($data));
+ print length($data) . "\n";
+ print $data;
+ }
+ }
+
+ }
+
+ # 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";
+}
+
+sub req_ci
+{
+ my ( $cmd, $data ) = @_;
+
+ argsplit("ci");
+
+ #$log->debug("State : " . Dumper($state));
+
+ $log->info("req_ci : " . ( defined($data) ? $data : "[NULL]" ));
+
+ if ( $state->{method} eq 'pserver' and $state->{user} eq 'anonymous' )
+ {
+ print "error 1 anonymous user cannot commit via pserver\n";
+ cleanupWorkTree();
+ exit;
+ }
+
+ if ( -e $state->{CVSROOT} . "/index" )
+ {
+ $log->warn("file 'index' already exists in the git repository");
+ print "error 1 Index already exists in git repo\n";
+ cleanupWorkTree();
+ exit;
+ }
+
+ # Grab a handle to the SQLite db and do any necessary updates
+ my $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log);
+ $updater->update();
+
+ my @committedfiles = ();
+ my %oldmeta;
+ my $stickyInfo;
+ my $branchRef;
+ my $parenthash;
+
+ # foreach file specified on the command line ...
+ foreach my $filename ( @{$state->{args}} )
+ {
+ my $committedfile = $filename;
+ $filename = filecleanup($filename);
+
+ next unless ( exists $state->{entries}{$filename}{modified_filename} or not $state->{entries}{$filename}{unchanged} );
+
+ #####
+ # 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);
+
+ my ( $filepart, $dirpart ) = filenamesplit($filename);
+
+ # do a checkout of the file if it is part of this tree
+ if ($wrev) {
+ system('git', 'checkout-index', '-f', '-u', $filename);
+ unless ($? == 0) {
+ die "Error running git-checkout-index -f -u $filename : $!";
+ }
+ }
+
+ my $addflag = 0;
+ my $rmflag = 0;
+ $rmflag = 1 if ( defined($wrev) and ($wrev=~/^-/) );
+ $addflag = 1 unless ( -e $filename );
+
+ # Do up to date checking
+ 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";
+ cleanupWorkTree();
+ exit;
+ }
+
+ push @committedfiles, $committedfile;
+ $log->info("Committing $filename");
+
+ system("mkdir","-p",$dirpart) unless ( -d $dirpart );
+
+ unless ( $rmflag )
+ {
+ $log->debug("rename $state->{entries}{$filename}{modified_filename} $filename");
+ rename $state->{entries}{$filename}{modified_filename},$filename;
+
+ # Calculate modes to remove
+ my $invmode = "";
+ foreach ( qw (r w x) ) { $invmode .= $_ unless ( $state->{entries}{$filename}{modified_mode} =~ /$_/ ); }
+
+ $log->debug("chmod u+" . $state->{entries}{$filename}{modified_mode} . "-" . $invmode . " $filename");
+ system("chmod","u+" . $state->{entries}{$filename}{modified_mode} . "-" . $invmode, $filename);
+ }
+
+ if ( $rmflag )
+ {
+ $log->info("Removing file '$filename'");
+ unlink($filename);
+ system("git", "update-index", "--remove", $filename);
+ }
+ elsif ( $addflag )
+ {
+ $log->info("Adding file '$filename'");
+ system("git", "update-index", "--add", $filename);
+ } else {
+ $log->info("UpdatingX2 file '$filename'");
+ system("git", "update-index", $filename);
+ }
+ }
+
+ unless ( scalar(@committedfiles) > 0 )
+ {
+ print "E No files to commit\n";
+ print "ok\n";
+ cleanupWorkTree();
+ return;
+ }
+
+ my $treehash = `git write-tree`;
+ chomp $treehash;
+
+ $log->debug("Treehash : $treehash, Parenthash : $parenthash");
+
+ # write our commit message out if we have one ...
+ my ( $msg_fh, $msg_filename ) = tempfile( DIR => $TEMP_DIR );
+ print $msg_fh $state->{opt}{m};# if ( exists ( $state->{opt}{m} ) );
+ if ( defined ( $cfg->{gitcvs}{commitmsgannotation} ) ) {
+ if ($cfg->{gitcvs}{commitmsgannotation} !~ /^\s*$/ ) {
+ print $msg_fh "\n\n".$cfg->{gitcvs}{commitmsgannotation}."\n"
+ }
+ } else {
+ print $msg_fh "\n\nvia git-CVS emulator\n";
+ }
+ close $msg_fh;
+
+ my $commithash = `git commit-tree $treehash -p $parenthash < $msg_filename`;
+ chomp($commithash);
+ $log->info("Commit hash : $commithash");
+
+ unless ( $commithash =~ /[a-zA-Z0-9]{40}/ )
+ {
+ $log->warn("Commit failed (Invalid commit hash)");
+ print "error 1 Commit failed (unknown reason)\n";
+ cleanupWorkTree();
+ exit;
+ }
+
+ ### Emulate git-receive-pack by running hooks/update
+ my @hook = ( $ENV{GIT_DIR}.'hooks/update', $branchRef,
+ $parenthash, $commithash );
+ if( -x $hook[0] ) {
+ unless( system( @hook ) == 0 )
+ {
+ $log->warn("Commit failed (update hook declined to update ref)");
+ print "error 1 Commit failed (update hook declined)\n";
+ cleanupWorkTree();
+ exit;
+ }
+ }
+
+ ### Update the ref
+ if (system(qw(git update-ref -m), "cvsserver ci",
+ $branchRef, $commithash, $parenthash)) {
+ $log->warn("update-ref for $state->{module} failed.");
+ print "error 1 Cannot commit -- update first\n";
+ cleanupWorkTree();
+ exit;
+ }
+
+ ### Emulate git-receive-pack by running hooks/post-receive
+ my $hook = $ENV{GIT_DIR}.'hooks/post-receive';
+ if( -x $hook ) {
+ open(my $pipe, "| $hook") || die "can't fork $!";
+
+ local $SIG{PIPE} = sub { die 'pipe broke' };
+
+ print $pipe "$parenthash $commithash $branchRef\n";
+
+ close $pipe || die "bad pipe: $! $?";
+ }
+
+ $updater->update();
+
+ ### Then hooks/post-update
+ $hook = $ENV{GIT_DIR}.'hooks/post-update';
+ if (-x $hook) {
+ system($hook, $branchRef);
+ }
+
+ # foreach file specified on the command line ...
+ foreach my $filename ( @committedfiles )
+ {
+ $filename = filecleanup($filename);
+
+ my $meta = $updater->getmeta($filename,$stickyInfo);
+ unless (defined $meta->{revision}) {
+ $meta->{revision} = "1.1";
+ }
+
+ my ( $filepart, $dirpart ) = filenamesplit($filename, 1);
+
+ $log->debug("Checked-in $dirpart : $filename");
+
+ 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: $oldmeta{$filename}{revision}\n";
+ print "Remove-entry $dirpart\n";
+ print "$filename\n";
+ } else {
+ if ($meta->{revision} eq "1.1") {
+ print "M initial revision: 1.1\n";
+ } else {
+ 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/$meta->{revision}//$kopts/" .
+ getStickyTagOrDate($stickyInfo) . "\n";
+ }
+ }
+
+ cleanupWorkTree();
+ print "ok\n";
+}
+
+sub req_status
+{
+ my ( $cmd, $data ) = @_;
+
+ argsplit("status");
+
+ $log->info("req_status : " . ( defined($data) ? $data : "[NULL]" ));
+ #$log->debug("status state : " . Dumper($state));
+
+ # Grab a handle to the SQLite db and do any necessary updates
+ my $updater;
+ $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log);
+ $updater->update();
+
+ # if no files were specified, we need to work out what files we should
+ # be providing status on ...
+ argsfromdir($updater);
+
+ # foreach file specified on the command line ...
+ foreach my $filename ( @{$state->{args}} )
+ {
+ $filename = filecleanup($filename);
+
+ if ( exists($state->{opt}{l}) &&
+ index($filename, '/', length($state->{prependdir})) >= 0 )
+ {
+ next;
+ }
+
+ my $wrev = revparse($filename);
+
+ my $stickyInfo = resolveStickyInfo($filename);
+ my $meta = $updater->getmeta($filename,$stickyInfo);
+ my $oldmeta = $meta;
+
+ # If the working copy is an old revision, lets get that
+ # version too for comparison.
+ if ( defined($wrev) and $wrev ne $meta->{revision} )
+ {
+ my($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
+ 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 =======" . ( "=" 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";
+ } else {
+ print "M Working revision:\tNo entry for $filename\n";
+ }
+ if ( defined($meta->{revision}) )
+ {
+ 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";
+ }
+ print "M\n";
+ }
+
+ print "ok\n";
+}
+
+sub req_diff
+{
+ my ( $cmd, $data ) = @_;
+
+ argsplit("diff");
+
+ $log->debug("req_diff : " . ( defined($data) ? $data : "[NULL]" ));
+ #$log->debug("status state : " . Dumper($state));
+
+ my ($revision1, $revision2);
+ if ( defined ( $state->{opt}{r} ) and ref $state->{opt}{r} eq "ARRAY" )
+ {
+ $revision1 = $state->{opt}{r}[0];
+ $revision2 = $state->{opt}{r}[1];
+ } else {
+ $revision1 = $state->{opt}{r};
+ }
+
+ $log->debug("Diffing revisions " .
+ ( defined($revision1) ? $revision1 : "[NULL]" ) .
+ " and " . ( defined($revision2) ? $revision2 : "[NULL]" ) );
+
+ # Grab a handle to the SQLite db and do any necessary updates
+ my $updater;
+ $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log);
+ $updater->update();
+
+ # if no files were specified, we need to work out what files we should
+ # be providing status on ...
+ argsfromdir($updater);
+
+ my($foundDiff);
+
+ # foreach file specified on the command line ...
+ foreach my $argFilename ( @{$state->{args}} )
+ {
+ my($filename) = filecleanup($argFilename);
+
+ my ( $fh, $file1, $file2, $meta1, $meta2, $filediff );
+
+ my $wrev = revparse($filename);
+
+ # 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 ( defined ( $revision1 ) )
+ {
+ $meta1 = $updater->getmeta($filename, $revision1);
+ }
+ elsif( defined($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}) )
+ {
+ if(!defined($revision1))
+ {
+ print "E File $filename at revision $revision1 doesn't exist\n";
+ }
+ next;
+ }
+ elsif( !defined($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 ) )
+ {
+ $meta2 = $updater->getmeta($filename, $revision2);
+ }
+ elsif(defined($state->{entries}{$filename}{modified_filename}))
+ {
+ $file2 = $state->{entries}{$filename}{modified_filename};
+ $meta2 = {
+ name => $filename,
+ revision => '0',
+ filehash => 'modified'
+ };
+ }
+ elsif( defined($wrev) && ($wrev!~/^-/) )
+ {
+ if(!defined($revision1)) # no revision and no modifications:
+ {
+ next;
+ }
+ $meta2 = $updater->getmeta($filename, $wrev);
+ }
+ if(!defined($file2))
+ {
+ if ( !defined($meta2) ||
+ $meta2->{filehash} eq "deleted" )
+ {
+ if( !exists($state->{opt}{N}) )
+ {
+ if(!defined($revision2))
+ {
+ print "E File $filename at revision $revision2 doesn't exist\n";
+ }
+ next;
+ }
+ elsif( !defined($meta2) )
+ {
+ $meta2 = {
+ name => $filename,
+ revision => '0',
+ filehash => 'deleted'
+ };
+ }
+ }
+ }
+
+ if( $meta1->{filehash} eq $meta2->{filehash} )
+ {
+ $log->info("unchanged $filename");
+ next;
+ }
+
+ # Retrieve revision contents:
+ ( undef, $file1 ) = tempfile( DIR => $TEMP_DIR, OPEN => 0 );
+ transmitfile($meta1->{filehash}, { targetfile => $file1 });
+
+ if(!defined($file2))
+ {
+ ( undef, $file2 ) = tempfile( DIR => $TEMP_DIR, OPEN => 0 );
+ transmitfile($meta2->{filehash}, { targetfile => $file2 });
+ }
+
+ # Generate the actual diff:
+ print "M Index: $argFilename\n";
+ print "M =======" . ( "=" x 60 ) . "\n";
+ print "M RCS file: $state->{CVSROOT}/$state->{module}/$filename,v\n";
+ if ( defined ( $meta1 ) && $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 $opt ( sort keys %{$state->{opt}} )
+ {
+ if ( ref $state->{opt}{$opt} eq "ARRAY" )
+ {
+ foreach my $value ( @{$state->{opt}{$opt}} )
+ {
+ print "-$opt $value ";
+ }
+ } else {
+ print "-$opt ";
+ if ( defined ( $state->{opt}{$opt} ) )
+ {
+ print "$state->{opt}{$opt} "
+ }
+ }
+ }
+ 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}) )
+ {
+ 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 $meta1->{revision}");
+ }
+
+ if( defined($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))
+ {
+ $log->warn("Unable to run diff: $!");
+ }
+ my($diffLine);
+ while(defined($diffLine=<DIFF>))
+ {
+ print "M $diffLine";
+ $foundDiff=1;
+ }
+ close(DIFF);
+ }
+
+ if($foundDiff)
+ {
+ print "error \n";
+ }
+ else
+ {
+ print "ok\n";
+ }
+}
+
+sub req_log
+{
+ my ( $cmd, $data ) = @_;
+
+ argsplit("log");
+
+ $log->debug("req_log : " . ( defined($data) ? $data : "[NULL]" ));
+ #$log->debug("log state : " . Dumper($state));
+
+ my ( $revFilter );
+ if ( defined ( $state->{opt}{r} ) )
+ {
+ $revFilter = $state->{opt}{r};
+ }
+
+ # Grab a handle to the SQLite db and do any necessary updates
+ my $updater;
+ $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log);
+ $updater->update();
+
+ # if no files were specified, we need to work out what files we
+ # should be providing status on ...
+ argsfromdir($updater);
+
+ # foreach file specified on the command line ...
+ foreach my $filename ( @{$state->{args}} )
+ {
+ $filename = filecleanup($filename);
+
+ my $headmeta = $updater->getmeta($filename);
+
+ 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: $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 description:\n";
+
+ foreach my $revision ( @$revisions )
+ {
+ print "M ----------------------------\n";
+ print "M revision $revision->{revision}\n";
+ # reformat the date for log output
+ 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;
+ $commitmessage = $updater->commitmessage($revision->{commithash});
+ $commitmessage =~ s/^/M /mg;
+ print $commitmessage . "\n";
+ }
+ print "M =======" . ( "=" x 70 ) . "\n";
+ }
+
+ print "ok\n";
+}
+
+sub req_annotate
+{
+ my ( $cmd, $data ) = @_;
+
+ argsplit("annotate");
+
+ $log->info("req_annotate : " . ( defined($data) ? $data : "[NULL]" ));
+ #$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);
+ $updater->update();
+
+ # if no files were specified, we need to work out what files we should be providing annotate on ...
+ argsfromdir($updater);
+
+ # we'll need a temporary checkout dir
+ setupWorkTree();
+
+ $log->info("Temp checkoutdir creation successful, basing annotate session work on '$work->{workDir}', index file is '$ENV{GIT_INDEX_FILE}'");
+
+ # foreach file specified on the command line ...
+ foreach my $filename ( @{$state->{args}} )
+ {
+ $filename = filecleanup($filename);
+
+ my $meta = $updater->getmeta($filename);
+
+ next unless ( $meta->{revision} );
+
+ # get all the commits that this file was in
+ # in dense format -- aka skip dead revisions
+ my $revisions = $updater->gethistorydense($filename);
+ my $lastseenin = $revisions->[0][2];
+
+ # populate the temporary index based on the latest commit were we saw
+ # the file -- but do it cheaply without checking out any files
+ # TODO: if we got a revision from the client, use that instead
+ # to look up the commithash in sqlite (still good to default to
+ # the current head as we do now)
+ system("git", "read-tree", $lastseenin);
+ unless ($? == 0)
+ {
+ print "E error running git-read-tree $lastseenin $ENV{GIT_INDEX_FILE} $!\n";
+ return;
+ }
+ $log->info("Created index '$ENV{GIT_INDEX_FILE}' with commit $lastseenin - exit status $?");
+
+ # do a checkout of the file
+ system('git', 'checkout-index', '-f', '-u', $filename);
+ unless ($? == 0) {
+ print "E error running git-checkout-index -f -u $filename : $!\n";
+ return;
+ }
+
+ $log->info("Annotate $filename");
+
+ # Prepare a file with the commits from the linearized
+ # history that annotate should know about. This prevents
+ # git-jsannotate telling us about commits we are hiding
+ # from the client.
+
+ my $a_hints = "$work->{workDir}/.annotate_hints";
+ if (!open(ANNOTATEHINTS, '>', $a_hints)) {
+ print "E failed to open '$a_hints' for writing: $!\n";
+ return;
+ }
+ for (my $i=0; $i < @$revisions; $i++)
+ {
+ print ANNOTATEHINTS $revisions->[$i][2];
+ if ($i+1 < @$revisions) { # have we got a parent?
+ print ANNOTATEHINTS ' ' . $revisions->[$i+1][2];
+ }
+ print ANNOTATEHINTS "\n";
+ }
+
+ print ANNOTATEHINTS "\n";
+ close ANNOTATEHINTS
+ or (print "E failed to write $a_hints: $!\n"), return;
+
+ my @cmd = (qw(git annotate -l -S), $a_hints, $filename);
+ if (!open(ANNOTATE, "-|", @cmd)) {
+ print "E error invoking ". join(' ',@cmd) .": $!\n";
+ return;
+ }
+ my $metadata = {};
+ print "E Annotations for $filename\n";
+ print "E ***************\n";
+ while ( <ANNOTATE> )
+ {
+ if (m/^([a-zA-Z0-9]{40})\t\([^\)]*\)(.*)$/i)
+ {
+ my $commithash = $1;
+ my $data = $2;
+ unless ( defined ( $metadata->{$commithash} ) )
+ {
+ $metadata->{$commithash} = $updater->getmeta($filename, $commithash);
+ $metadata->{$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 %-7s (%-8s %10s): %s\n",
+ $metadata->{$commithash}{revision},
+ $metadata->{$commithash}{author},
+ $metadata->{$commithash}{modified},
+ $data
+ );
+ } else {
+ $log->warn("Error in annotate output! LINE: $_");
+ print "E Annotate error \n";
+ next;
+ }
+ }
+ close ANNOTATE;
+ }
+
+ # done; get out of the tempdir
+ cleanupWorkTree();
+
+ print "ok\n";
+
+}
+
+# This method takes the state->{arguments} array and produces two new arrays.
+# The first is $state->{args} which is everything before the '--' argument, and
+# the second is $state->{files} which is everything after it.
+sub argsplit
+{
+ $state->{args} = [];
+ $state->{files} = [];
+ $state->{opt} = {};
+
+ return unless( defined($state->{arguments}) and ref $state->{arguments} eq "ARRAY" );
+
+ my $type = shift;
+
+ if ( defined($type) )
+ {
+ my $opt = {};
+ $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, 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" );
+ $opt = { l => 0, b => 0, h => 0, R => 0, t => 0, N => 0, S => 0, r => 1, d => 1, s => 1, w => 1 } if ( $type eq "log" );
+
+
+ while ( scalar ( @{$state->{arguments}} ) > 0 )
+ {
+ my $arg = shift @{$state->{arguments}};
+
+ next if ( $arg eq "--" );
+ next unless ( $arg =~ /\S/ );
+
+ # if the argument looks like a switch
+ if ( $arg =~ /^-(\w)(.*)/ )
+ {
+ # if it's a switch that takes an argument
+ if ( $opt->{$1} )
+ {
+ # If this switch has already been provided
+ if ( $opt->{$1} > 1 and exists ( $state->{opt}{$1} ) )
+ {
+ $state->{opt}{$1} = [ $state->{opt}{$1} ];
+ if ( length($2) > 0 )
+ {
+ push @{$state->{opt}{$1}},$2;
+ } else {
+ push @{$state->{opt}{$1}}, shift @{$state->{arguments}};
+ }
+ } else {
+ # if there's extra data in the arg, use that as the argument for the switch
+ if ( length($2) > 0 )
+ {
+ $state->{opt}{$1} = $2;
+ } else {
+ $state->{opt}{$1} = shift @{$state->{arguments}};
+ }
+ }
+ } else {
+ $state->{opt}{$1} = undef;
+ }
+ }
+ else
+ {
+ push @{$state->{args}}, $arg;
+ }
+ }
+ }
+ else
+ {
+ my $mode = 0;
+
+ foreach my $value ( @{$state->{arguments}} )
+ {
+ if ( $value eq "--" )
+ {
+ $mode++;
+ next;
+ }
+ push @{$state->{args}}, $value if ( $mode == 0 );
+ push @{$state->{files}}, $value if ( $mode == 1 );
+ }
+ }
+}
+
+# Used by argsfromdir
+sub expandArg
+{
+ my ($updater,$outNameMap,$outDirMap,$path,$isDir) = @_;
+
+ my $fullPath = filecleanup($path);
+
+ # Is it a directory?
+ if( defined($state->{dirMap}{$fullPath}) ||
+ defined($state->{dirMap}{"$fullPath/"}) )
+ {
+ # It is a directory in the user's sandbox.
+ $isDir=1;
+
+ if(defined($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($sticky->{tag});
+ }
+
+ # Is it a directory?
+ if( defined($revDirMap->{$fullPath}) ||
+ defined($otherRevDirMap->{$fullPath}) )
+ {
+ $isDir=1;
+ }
+ }
+
+ # What to do with it?
+ if(!$isDir)
+ {
+ $outNameMap->{$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});
+ }
+ }
+}
+
+# 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//))
+ {
+ $log->fatal("internal error stripping prependdir");
+ die "internal error stripping prependdir";
+ }
+ }
+
+ if($dirMap->{$fullName} eq "F")
+ {
+ $outNameMap->{$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";
+ }
+ }
+}
+
+# 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);
+ }
+
+ # 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;
+ }
+
+ $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
+ {
+ 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 $state->{entries}{$filename}{revision};
+}
+
+# This method takes a file hash and does a CVS "file transfer". Its
+# exact behaviour depends on a second, optional hash table argument:
+# - If $options->{targetfile}, dump the contents to that file;
+# - If $options->{print}, use M/MT to transmit the contents one line
+# at a time;
+# - Otherwise, transmit the size of the file, followed by the file
+# contents.
+sub transmitfile
+{
+ my $filehash = shift;
+ my $options = shift;
+
+ if ( defined ( $filehash ) and $filehash eq "deleted" )
+ {
+ $log->warn("filehash is 'deleted'");
+ return;
+ }
+
+ die "Need filehash" unless ( defined ( $filehash ) and $filehash =~ /^[a-zA-Z0-9]{40}$/ );
+
+ my $type = `git cat-file -t $filehash`;
+ chomp $type;
+
+ die ( "Invalid type '$type' (expected 'blob')" ) unless ( defined ( $type ) and $type eq "blob" );
+
+ my $size = `git cat-file -s $filehash`;
+ chomp $size;
+
+ $log->debug("transmitfile($filehash) size=$size, type=$type");
+
+ if ( open my $fh, '-|', "git", "cat-file", "blob", $filehash )
+ {
+ if ( defined ( $options->{targetfile} ) )
+ {
+ my $targetfile = $options->{targetfile};
+ open NEWFILE, ">", $targetfile or die("Couldn't open '$targetfile' for writing : $!");
+ print NEWFILE $_ while ( <$fh> );
+ close NEWFILE or die("Failed to write '$targetfile': $!");
+ } elsif ( defined ( $options->{print} ) && $options->{print} ) {
+ while ( <$fh> ) {
+ if( /\n\z/ ) {
+ print 'M ', $_;
+ } else {
+ print 'MT text ', $_, "\n";
+ }
+ }
+ } else {
+ print "$size\n";
+ print while ( <$fh> );
+ }
+ close $fh or die ("Couldn't close filehandle for transmitfile(): $!");
+ } else {
+ die("Couldn't execute git-cat-file");
+ }
+}
+
+# This method takes a file name, and returns ( $dirpart, $filepart ) which
+# refers to the directory portion and the file portion of the filename
+# respectively
+sub filenamesplit
+{
+ my $filename = shift;
+ my $fixforlocaldir = shift;
+
+ my ( $filepart, $dirpart ) = ( $filename, "." );
+ ( $filepart, $dirpart ) = ( $2, $1 ) if ( $filename =~ /(.*)\/(.*)/ );
+ $dirpart .= "/";
+
+ if ( $fixforlocaldir )
+ {
+ $dirpart =~ s/^$state->{prependdir}//;
+ }
+
+ return ( $filepart, $dirpart );
+}
+
+# Cleanup various junk in filename (try to canonicalize it), and
+# add prependdir to accommodate running CVS client from a
+# subdirectory (so the output is relative to top directory of the project).
+sub filecleanup
+{
+ my $filename = shift;
+
+ return undef unless(defined($filename));
+ if ( $filename =~ /^\// )
+ {
+ print "E absolute filenames '$filename' not supported by server\n";
+ 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}) )
+ {
+ print "error 1 CVSROOT not specified\n";
+ cleanupWorkTree();
+ exit;
+ }
+ if( $ENV{GIT_DIR} ne ($state->{CVSROOT} . '/') )
+ {
+ print "error 1 Internally inconsistent CVSROOT\n";
+ cleanupWorkTree();
+ exit;
+ }
+}
+
+# Setup working directory in a work tree with the requested version
+# loaded in the index.
+sub setupWorkTree
+{
+ my ($ver) = @_;
+
+ validateGitDir();
+
+ if( ( defined($work->{state}) && $work->{state} != 1 ) ||
+ defined($work->{tmpDir}) )
+ {
+ $log->warn("Bad work tree state management");
+ print "error 1 Internal setup multiple work trees without cleanup\n";
+ cleanupWorkTree();
+ exit;
+ }
+
+ $work->{workDir} = tempdir ( DIR => $TEMP_DIR );
+
+ if( !defined($work->{index}) )
+ {
+ (undef, $work->{index}) = tempfile ( DIR => $TEMP_DIR, OPEN => 0 );
+ }
+
+ chdir $work->{workDir} or
+ die "Unable to chdir to $work->{workDir}\n";
+
+ $log->info("Setting up GIT_WORK_TREE as '.' in '$work->{workDir}', index file is '$work->{index}'");
+
+ $ENV{GIT_WORK_TREE} = ".";
+ $ENV{GIT_INDEX_FILE} = $work->{index};
+ $work->{state} = 2;
+
+ if($ver)
+ {
+ system("git","read-tree",$ver);
+ unless ($? == 0)
+ {
+ $log->warn("Error running git-read-tree");
+ die "Error running git-read-tree $ver in $work->{workDir} $!\n";
+ }
+ }
+ # else # req_annotate reads tree for each file
+}
+
+# Ensure current directory is in some kind of working directory,
+# with a recent version loaded in the index.
+sub ensureWorkTree
+{
+ if( defined($work->{tmpDir}) )
+ {
+ $log->warn("Bad work tree state management [ensureWorkTree()]");
+ print "error 1 Internal setup multiple dirs without cleanup\n";
+ cleanupWorkTree();
+ exit;
+ }
+ if( $work->{state} )
+ {
+ return;
+ }
+
+ validateGitDir();
+
+ if( !defined($work->{emptyDir}) )
+ {
+ $work->{emptyDir} = tempdir ( DIR => $TEMP_DIR, OPEN => 0);
+ }
+ chdir $work->{emptyDir} or
+ die "Unable to chdir to $work->{emptyDir}\n";
+
+ my $ver = `git show-ref -s refs/heads/$state->{module}`;
+ chomp $ver;
+ if ($ver !~ /^[0-9a-f]{40}$/)
+ {
+ $log->warn("Error from git show-ref -s refs/head$state->{module}");
+ print "error 1 cannot find the current HEAD of module";
+ cleanupWorkTree();
+ exit;
+ }
+
+ if( !defined($work->{index}) )
+ {
+ (undef, $work->{index}) = tempfile ( DIR => $TEMP_DIR, OPEN => 0 );
+ }
+
+ $ENV{GIT_WORK_TREE} = ".";
+ $ENV{GIT_INDEX_FILE} = $work->{index};
+ $work->{state} = 1;
+
+ system("git","read-tree",$ver);
+ unless ($? == 0)
+ {
+ die "Error running git-read-tree $ver $!\n";
+ }
+}
+
+# Cleanup working directory that is not needed any longer.
+sub cleanupWorkTree
+{
+ if( ! $work->{state} )
+ {
+ return;
+ }
+
+ chdir "/" or die "Unable to chdir '/'\n";
+
+ if( defined($work->{workDir}) )
+ {
+ rmtree( $work->{workDir} );
+ undef $work->{workDir};
+ }
+ undef $work->{state};
+}
+
+# Setup a temporary directory (not a working tree), typically for
+# merging dirty state as in req_update.
+sub setupTmpDir
+{
+ $work->{tmpDir} = tempdir ( DIR => $TEMP_DIR );
+ chdir $work->{tmpDir} or die "Unable to chdir $work->{tmpDir}\n";
+
+ return $work->{tmpDir};
+}
+
+# Clean up a previously setupTmpDir. Restore previous work tree if
+# appropriate.
+sub cleanupTmpDir
+{
+ if ( !defined($work->{tmpDir}) )
+ {
+ $log->warn("cleanup tmpdir that has not been setup");
+ die "Cleanup tmpDir that has not been setup\n";
+ }
+ if( defined($work->{state}) )
+ {
+ if( $work->{state} == 1 )
+ {
+ chdir $work->{emptyDir} or
+ die "Unable to chdir to $work->{emptyDir}\n";
+ }
+ elsif( $work->{state} == 2 )
+ {
+ chdir $work->{workDir} or
+ die "Unable to chdir to $work->{emptyDir}\n";
+ }
+ else
+ {
+ $log->warn("Inconsistent work dir state");
+ die "Inconsistent work dir state\n";
+ }
+ }
+ else
+ {
+ chdir "/" or die "Unable to chdir '/'\n";
+ }
+}
+
+# Given a path, this function returns a string containing the kopts
+# that should go into that path's Entries line. For example, a binary
+# file should get -kb.
+sub kopts_from_path
+{
+ my ($path, $srcType, $name) = @_;
+
+ if ( defined ( $cfg->{gitcvs}{usecrlfattr} ) and
+ $cfg->{gitcvs}{usecrlfattr} =~ /\s*(1|true|yes)\s*$/i )
+ {
+ my ($val) = check_attr( "text", $path );
+ if ( $val eq "unspecified" )
+ {
+ $val = check_attr( "crlf", $path );
+ }
+ if ( $val eq "unset" )
+ {
+ return "-kb"
+ }
+ elsif ( check_attr( "eol", $path ) ne "unspecified" ||
+ $val eq "set" || $val eq "input" )
+ {
+ return "";
+ }
+ else
+ {
+ $log->info("Unrecognized check_attr crlf $path : $val");
+ }
+ }
+
+ if ( defined ( $cfg->{gitcvs}{allbinary} ) )
+ {
+ if( ($cfg->{gitcvs}{allbinary} =~ /^\s*(1|true|yes)\s*$/i) )
+ {
+ return "-kb";
+ }
+ elsif( ($cfg->{gitcvs}{allbinary} =~ /^\s*guess\s*$/i) )
+ {
+ if( is_binary($srcType,$name) )
+ {
+ $log->debug("... as binary");
+ return "-kb";
+ }
+ else
+ {
+ $log->debug("... as text");
+ }
+ }
+ }
+ # Return "" to give no special treatment to any path
+ return "";
+}
+
+sub check_attr
+{
+ my ($attr,$path) = @_;
+ ensureWorkTree();
+ if ( open my $fh, '-|', "git", "check-attr", $attr, "--", $path )
+ {
+ my $val = <$fh>;
+ close $fh;
+ $val =~ s/.*: ([^:\r\n]*)\s*$/$1/;
+ return $val;
+ }
+ else
+ {
+ return undef;
+ }
+}
+
+# This should have the same heuristics as convert.c:is_binary() and related.
+# Note that the bare CR test is done by callers in convert.c.
+sub is_binary
+{
+ my ($srcType,$name) = @_;
+ $log->debug("is_binary($srcType,$name)");
+
+ # Minimize amount of interpreted code run in the inner per-character
+ # loop for large files, by totalling each character value and
+ # then analyzing the totals.
+ my @counts;
+ my $i;
+ for($i=0;$i<256;$i++)
+ {
+ $counts[$i]=0;
+ }
+
+ my $fh = open_blob_or_die($srcType,$name);
+ my $line;
+ while( defined($line=<$fh>) )
+ {
+ # Any '\0' and bare CR are considered binary.
+ if( $line =~ /\0|(\r[^\n])/ )
+ {
+ close($fh);
+ return 1;
+ }
+
+ # Count up each character in the line:
+ my $len=length($line);
+ for($i=0;$i<$len;$i++)
+ {
+ $counts[ord(substr($line,$i,1))]++;
+ }
+ }
+ close $fh;
+
+ # Don't count CR and LF as either printable/nonprintable
+ $counts[ord("\n")]=0;
+ $counts[ord("\r")]=0;
+
+ # Categorize individual character count into printable and nonprintable:
+ my $printable=0;
+ my $nonprintable=0;
+ for($i=0;$i<256;$i++)
+ {
+ if( $i < 32 &&
+ $i != ord("\b") &&
+ $i != ord("\t") &&
+ $i != 033 && # ESC
+ $i != 014 ) # FF
+ {
+ $nonprintable+=$counts[$i];
+ }
+ elsif( $i==127 ) # DEL
+ {
+ $nonprintable+=$counts[$i];
+ }
+ else
+ {
+ $printable+=$counts[$i];
+ }
+ }
+
+ return ($printable >> 7) < $nonprintable;
+}
+
+# Returns open file handle. Possible invocations:
+# - open_blob_or_die("file",$filename);
+# - open_blob_or_die("sha1",$filehash);
+sub open_blob_or_die
+{
+ my ($srcType,$name) = @_;
+ my ($fh);
+ if( $srcType eq "file" )
+ {
+ if( !open $fh,"<",$name )
+ {
+ $log->warn("Unable to open file $name: $!");
+ die "Unable to open file $name: $!\n";
+ }
+ }
+ elsif( $srcType eq "sha1" )
+ {
+ unless ( defined ( $name ) and $name =~ /^[a-zA-Z0-9]{40}$/ )
+ {
+ $log->warn("Need filehash");
+ die "Need filehash\n";
+ }
+
+ my $type = `git cat-file -t $name`;
+ chomp $type;
+
+ unless ( defined ( $type ) and $type eq "blob" )
+ {
+ $log->warn("Invalid type '$type' for '$name'");
+ die ( "Invalid type '$type' (expected 'blob')" )
+ }
+
+ my $size = `git cat-file -s $name`;
+ chomp $size;
+
+ $log->debug("open_blob_or_die($name) size=$size, type=$type");
+
+ unless( open $fh, '-|', "git", "cat-file", "blob", $name )
+ {
+ $log->warn("Unable to open sha1 $name");
+ die "Unable to open sha1 $name\n";
+ }
+ }
+ else
+ {
+ $log->warn("Unknown type of blob source: $srcType");
+ die "Unknown type of blob source: $srcType\n";
+ }
+ return $fh;
+}
+
+# Generate a CVS author name from Git author information, by taking the local
+# part of the email address and replacing characters not in the Portable
+# Filename Character Set (see IEEE Std 1003.1-2001, 3.276) by underscores. CVS
+# Login names are Unix login names, which should be restricted to this
+# character set.
+sub cvs_author
+{
+ my $author_line = shift;
+ (my $author) = $author_line =~ /<([^@>]*)/;
+
+ $author =~ s/[^-a-zA-Z0-9_.]/_/g;
+ $author =~ s/^-/_/;
+
+ $author;
+}
+
+
+sub descramble
+{
+ # This table is from src/scramble.c in the CVS source
+ my @SHIFTS = (
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
+ 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
+ 114,120, 53, 79, 96,109, 72,108, 70, 64, 76, 67,116, 74, 68, 87,
+ 111, 52, 75,119, 49, 34, 82, 81, 95, 65,112, 86,118,110,122,105,
+ 41, 57, 83, 43, 46,102, 40, 89, 38,103, 45, 50, 42,123, 91, 35,
+ 125, 55, 54, 66,124,126, 59, 47, 92, 71,115, 78, 88,107,106, 56,
+ 36,121,117,104,101,100, 69, 73, 99, 63, 94, 93, 39, 37, 61, 48,
+ 58,113, 32, 90, 44, 98, 60, 51, 33, 97, 62, 77, 84, 80, 85,223,
+ 225,216,187,166,229,189,222,188,141,249,148,200,184,136,248,190,
+ 199,170,181,204,138,232,218,183,255,234,220,247,213,203,226,193,
+ 174,172,228,252,217,201,131,230,197,211,145,238,161,179,160,212,
+ 207,221,254,173,202,146,224,151,140,196,205,130,135,133,143,246,
+ 192,159,244,239,185,168,215,144,139,165,180,157,147,186,214,176,
+ 227,231,219,169,175,156,206,198,129,164,150,210,154,177,134,127,
+ 182,128,158,208,162,132,167,209,149,241,153,251,237,236,171,195,
+ 243,233,253,240,194,250,191,155,142,137,245,235,163,242,178,152
+ );
+ my ($str) = @_;
+
+ # This should never happen, the same password format (A) has been
+ # used by CVS since the beginning of time
+ {
+ my $fmt = substr($str, 0, 1);
+ die "invalid password format `$fmt'" unless $fmt eq 'A';
+ }
+
+ my @str = unpack "C*", substr($str, 1);
+ my $ret = join '', map { chr $SHIFTS[$_] } @str;
+ 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;
+
+####
+#### Copyright The Open University UK - 2006.
+####
+#### Authors: Martyn Smith <martyn@catalyst.net.nz>
+#### Martin Langhoff <martin@laptop.org>
+####
+####
+
+use strict;
+use warnings;
+
+=head1 NAME
+
+GITCVS::log
+
+=head1 DESCRIPTION
+
+This module provides very crude logging with a similar interface to
+Log::Log4perl
+
+=head1 METHODS
+
+=cut
+
+=head2 new
+
+Creates a new log object, optionally you can specify a filename here to
+indicate the file to log to. If no log file is specified, you can specify one
+later with method setfile, or indicate you no longer want logging with method
+nofile.
+
+Until one of these methods is called, all log calls will buffer messages ready
+to write out.
+
+=cut
+sub new
+{
+ my $class = shift;
+ my $filename = shift;
+
+ my $self = {};
+
+ bless $self, $class;
+
+ if ( defined ( $filename ) )
+ {
+ open $self->{fh}, ">>", $filename or die("Couldn't open '$filename' for writing : $!");
+ }
+
+ return $self;
+}
+
+=head2 setfile
+
+This methods takes a filename, and attempts to open that file as the log file.
+If successful, all buffered data is written out to the file, and any further
+logging is written directly to the file.
+
+=cut
+sub setfile
+{
+ my $self = shift;
+ my $filename = shift;
+
+ if ( defined ( $filename ) )
+ {
+ open $self->{fh}, ">>", $filename or die("Couldn't open '$filename' for writing : $!");
+ }
+
+ return unless ( defined ( $self->{buffer} ) and ref $self->{buffer} eq "ARRAY" );
+
+ while ( my $line = shift @{$self->{buffer}} )
+ {
+ print {$self->{fh}} $line;
+ }
+}
+
+=head2 nofile
+
+This method indicates no logging is going to be used. It flushes any entries in
+the internal buffer, and sets a flag to ensure no further data is put there.
+
+=cut
+sub nofile
+{
+ my $self = shift;
+
+ $self->{nolog} = 1;
+
+ return unless ( defined ( $self->{buffer} ) and ref $self->{buffer} eq "ARRAY" );
+
+ $self->{buffer} = [];
+}
+
+=head2 _logopen
+
+Internal method. Returns true if the log file is open, false otherwise.
+
+=cut
+sub _logopen
+{
+ my $self = shift;
+
+ return 1 if ( defined ( $self->{fh} ) and ref $self->{fh} eq "GLOB" );
+ return 0;
+}
+
+=head2 debug info warn fatal
+
+These four methods are wrappers to _log. They provide the actual interface for
+logging data.
+
+=cut
+sub debug { my $self = shift; $self->_log("debug", @_); }
+sub info { my $self = shift; $self->_log("info" , @_); }
+sub warn { my $self = shift; $self->_log("warn" , @_); }
+sub fatal { my $self = shift; $self->_log("fatal", @_); }
+
+=head2 _log
+
+This is an internal method called by the logging functions. It generates a
+timestamp and pushes the logged line either to file, or internal buffer.
+
+=cut
+sub _log
+{
+ my $self = shift;
+ my $level = shift;
+
+ return if ( $self->{nolog} );
+
+ my @time = localtime;
+ my $timestring = sprintf("%4d-%02d-%02d %02d:%02d:%02d : %-5s",
+ $time[5] + 1900,
+ $time[4] + 1,
+ $time[3],
+ $time[2],
+ $time[1],
+ $time[0],
+ uc $level,
+ );
+
+ if ( $self->_logopen )
+ {
+ print {$self->{fh}} $timestring . " - " . join(" ",@_) . "\n";
+ } else {
+ push @{$self->{buffer}}, $timestring . " - " . join(" ",@_) . "\n";
+ }
+}
+
+=head2 DESTROY
+
+This method simply closes the file handle if one is open
+
+=cut
+sub DESTROY
+{
+ my $self = shift;
+
+ if ( $self->_logopen )
+ {
+ close $self->{fh};
+ }
+}
+
+package GITCVS::updater;
+
+####
+#### Copyright The Open University UK - 2006.
+####
+#### Authors: Martyn Smith <martyn@catalyst.net.nz>
+#### Martin Langhoff <martin@laptop.org>
+####
+####
+
+use strict;
+use warnings;
+use DBI;
+
+=head1 METHODS
+
+=cut
+
+=head2 new
+
+=cut
+sub new
+{
+ my $class = shift;
+ my $config = shift;
+ my $module = shift;
+ my $log = shift;
+
+ die "Need to specify a git repository" unless ( defined($config) and -d $config );
+ die "Need to specify a module" unless ( defined($module) );
+
+ $class = ref($class) || $class;
+
+ my $self = {};
+
+ bless $self, $class;
+
+ $self->{valid_tables} = {'revision' => 1,
+ 'revision_ix1' => 1,
+ 'revision_ix2' => 1,
+ 'head' => 1,
+ 'head_ix1' => 1,
+ 'properties' => 1,
+ 'commitmsgs' => 1};
+
+ $self->{module} = $module;
+ $self->{git_path} = $config . "/";
+
+ $self->{log} = $log;
+
+ die "Git repo '$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} ||
+ $cfg->{gitcvs}{dbname} || "%Ggitcvs.%m.sqlite";
+ $self->{dbuser} = $cfg->{gitcvs}{$state->{method}}{dbuser} ||
+ $cfg->{gitcvs}{dbuser} || "";
+ $self->{dbpass} = $cfg->{gitcvs}{$state->{method}}{dbpass} ||
+ $cfg->{gitcvs}{dbpass} || "";
+ $self->{dbtablenameprefix} = $cfg->{gitcvs}{$state->{method}}{dbtablenameprefix} ||
+ $cfg->{gitcvs}{dbtablenameprefix} || "";
+ my %mapping = ( m => $module,
+ a => $state->{method},
+ u => getlogin || getpwuid($<) || $<,
+ G => $self->{git_path},
+ g => mangle_dirname($self->{git_path}),
+ );
+ $self->{dbname} =~ s/%([mauGg])/$mapping{$1}/eg;
+ $self->{dbuser} =~ s/%([mauGg])/$mapping{$1}/eg;
+ $self->{dbtablenameprefix} =~ s/%([mauGg])/$mapping{$1}/eg;
+ $self->{dbtablenameprefix} = mangle_tablename($self->{dbtablenameprefix});
+
+ die "Invalid char ':' in dbdriver" if $self->{dbdriver} =~ /:/;
+ die "Invalid char ';' in dbname" if $self->{dbname} =~ /;/;
+ $self->{dbh} = DBI->connect("dbi:$self->{dbdriver}:dbname=$self->{dbname}",
+ $self->{dbuser},
+ $self->{dbpass});
+ die "Error connecting to database\n" unless defined $self->{dbh};
+
+ $self->{tables} = {};
+ foreach my $table ( keys %{$self->{dbh}->table_info(undef,undef,undef,'TABLE')->fetchall_hashref('TABLE_NAME')} )
+ {
+ $self->{tables}{$table} = 1;
+ }
+
+ # 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");
+ my $ix1name = $self->tablename("revision_ix1");
+ my $ix2name = $self->tablename("revision_ix2");
+ $self->{dbh}->do("
+ CREATE TABLE $tablename (
+ name TEXT NOT NULL,
+ revision INTEGER NOT NULL,
+ filehash TEXT NOT NULL,
+ commithash TEXT NOT NULL,
+ author TEXT NOT NULL,
+ modified TEXT NOT NULL,
+ mode TEXT NOT NULL
+ )
+ ");
+ $self->{dbh}->do("
+ CREATE INDEX $ix1name
+ ON $tablename (name,revision)
+ ");
+ $self->{dbh}->do("
+ CREATE INDEX $ix2name
+ ON $tablename (name,commithash)
+ ");
+ }
+
+ # 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");
+ my $ix1name = $self->tablename("head_ix1");
+ $self->{dbh}->do("
+ CREATE TABLE $tablename (
+ name TEXT NOT NULL,
+ revision INTEGER NOT NULL,
+ filehash TEXT NOT NULL,
+ commithash TEXT NOT NULL,
+ author TEXT NOT NULL,
+ modified TEXT NOT NULL,
+ mode TEXT NOT NULL
+ )
+ ");
+ $self->{dbh}->do("
+ CREATE INDEX $ix1name
+ ON $tablename (name)
+ ");
+ }
+
+ # Construct the properties table if required
+ # - "last_commit" - Used by "sub update".
+ unless ( $self->{tables}{$self->tablename("properties")} )
+ {
+ my $tablename = $self->tablename("properties");
+ $self->{dbh}->do("
+ CREATE TABLE $tablename (
+ key TEXT NOT NULL PRIMARY KEY,
+ value TEXT
+ )
+ ");
+ }
+
+ # 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");
+ $self->{dbh}->do("
+ CREATE TABLE $tablename (
+ key TEXT NOT NULL PRIMARY KEY,
+ value TEXT
+ )
+ ");
+ }
+
+ return $self;
+}
+
+=head2 tablename
+
+=cut
+sub tablename
+{
+ my $self = shift;
+ my $name = shift;
+
+ if (exists $self->{valid_tables}{$name}) {
+ return $self->{dbtablenameprefix} . $name;
+ } else {
+ return undef;
+ }
+}
+
+=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
+{
+ my $self = shift;
+
+ # first lets get the commit list
+ $ENV{GIT_DIR} = $self->{git_path};
+
+ my $commitsha1 = `git rev-parse $self->{module}`;
+ chomp $commitsha1;
+
+ my $commitinfo = `git cat-file commit $self->{module} 2>&1`;
+ unless ( $commitinfo =~ /tree\s+[a-zA-Z0-9]{40}/ )
+ {
+ die("Invalid module '$self->{module}'");
+ }
+
+
+ my $git_log;
+ my $lastcommit = $self->_get_prop("last_commit");
+
+ if (defined $lastcommit && $lastcommit eq $commitsha1) { # up-to-date
+ # invalidate the gethead cache
+ $self->clearCommitRefCaches();
+ return 1;
+ }
+
+ # Start exclusive lock here...
+ $self->{dbh}->begin_work() or die "Cannot lock database for BEGIN";
+
+ # TODO: log processing is memory bound
+ # if we can parse into a 2nd file that is in reverse order
+ # we can probably do something really efficient
+ my @git_log_params = ('--pretty', '--parents', '--topo-order');
+
+ if (defined $lastcommit) {
+ push @git_log_params, "$lastcommit..$self->{module}";
+ } else {
+ push @git_log_params, $self->{module};
+ }
+ # git-rev-list is the backend / plumbing version of git-log
+ 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,
+ # determine whether it's following the last head we've seen or if
+ # it's on its own branch, grab a file list, and add whatever's changed
+ # NOTE: $lastcommit refers to the last commit from previous run
+ # $lastpicked is the last commit we picked in this run
+ my $lastpicked;
+ my $head = {};
+ if (defined $lastcommit) {
+ $lastpicked = $lastcommit;
+ }
+
+ my $committotal = scalar(@commits);
+ my $commitcount = 0;
+
+ # Load the head table into $head (for cached lookups during the update process)
+ foreach my $file ( @{$self->gethead(1)} )
+ {
+ $head->{$file->{name}} = $file;
+ }
+
+ foreach my $commit ( @commits )
+ {
+ $self->{log}->debug("GITCVS::updater - Processing commit $commit->{hash} (" . (++$commitcount) . " of $committotal)");
+ if (defined $lastpicked)
+ {
+ if (!in_array($lastpicked, @{$commit->{parents}}))
+ {
+ # skip, we'll see this delta
+ # as part of a merge later
+ # warn "skipping off-track $commit->{hash}\n";
+ next;
+ } elsif (@{$commit->{parents}} > 1) {
+ # it is a merge commit, for each parent that is
+ # 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 $parent (@parents) {
+ if ($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, $parent);
+ };
+ # The two branches may not be related at all,
+ # in which case merge base simply fails to find
+ # any, but that's Ok.
+ next if ($@);
+
+ chomp $base;
+ if ($base) {
+ my @merged;
+ # print "want to log between $base $parent \n";
+ open(GITLOG, '-|', 'git', 'log', '--pretty=medium', "$base..$parent")
+ or die "Cannot call git-log: $!";
+ my $mergedhash;
+ while (<GITLOG>) {
+ chomp;
+ if (!defined $mergedhash) {
+ if (m/^commit\s+(.+)$/) {
+ $mergedhash = $1;
+ } else {
+ next;
+ }
+ } else {
+ # grab the first line that looks non-rfc822
+ # aka has content after leading space
+ if (m/^\s+(\S.*)$/) {
+ my $title = $1;
+ $title = substr($title,0,100); # truncate
+ unshift @merged, "$mergedhash $title";
+ undef $mergedhash;
+ }
+ }
+ }
+ close GITLOG;
+ if (@merged) {
+ $commit->{mergemsg} = $commit->{message};
+ $commit->{mergemsg} .= "\nSummary of merged commits:\n\n";
+ foreach my $summary (@merged) {
+ $commit->{mergemsg} .= "\t$summary\n";
+ }
+ $commit->{mergemsg} .= "\n\n";
+ # print "Message for $commit->{hash} \n$commit->{mergemsg}";
+ }
+ }
+ }
+ }
+ }
+
+ # convert the date to CVS-happy format
+ my $cvsDate = convertToCvsDate($commit->{date});
+
+ if ( defined ( $lastpicked ) )
+ {
+ my $filepipe = open(FILELIST, '-|', 'git', 'diff-tree', '-z', '-r', $lastpicked, $commit->{hash}) or die("Cannot call git-diff-tree : $!");
+ local ($/) = "\0";
+ while ( <FILELIST> )
+ {
+ chomp;
+ 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 : $_");
+ }
+ my ($mode, $hash, $change) = ($1, $2, $3);
+ my $name = <FILELIST>;
+ chomp($name);
+
+ # $log->debug("File mode=$mode, hash=$hash, change=$change, name=$name");
+
+ my $dbMode = convertToDbMode($mode);
+
+ if ( $change eq "D" )
+ {
+ #$log->debug("DELETE $name");
+ $head->{$name} = {
+ name => $name,
+ revision => $head->{$name}{revision} + 1,
+ filehash => "deleted",
+ commithash => $commit->{hash},
+ modified => $cvsDate,
+ author => $commit->{author},
+ mode => $dbMode,
+ };
+ $self->insert_rev($name, $head->{$name}{revision}, $hash, $commit->{hash}, $cvsDate, $commit->{author}, $dbMode);
+ }
+ elsif ( $change eq "M" || $change eq "T" )
+ {
+ #$log->debug("MODIFIED $name");
+ $head->{$name} = {
+ name => $name,
+ revision => $head->{$name}{revision} + 1,
+ filehash => $hash,
+ commithash => $commit->{hash},
+ modified => $cvsDate,
+ author => $commit->{author},
+ mode => $dbMode,
+ };
+ $self->insert_rev($name, $head->{$name}{revision}, $hash, $commit->{hash}, $cvsDate, $commit->{author}, $dbMode);
+ }
+ elsif ( $change eq "A" )
+ {
+ #$log->debug("ADDED $name");
+ $head->{$name} = {
+ name => $name,
+ revision => $head->{$name}{revision} ? $head->{$name}{revision}+1 : 1,
+ filehash => $hash,
+ commithash => $commit->{hash},
+ modified => $cvsDate,
+ author => $commit->{author},
+ mode => $dbMode,
+ };
+ $self->insert_rev($name, $head->{$name}{revision}, $hash, $commit->{hash}, $cvsDate, $commit->{author}, $dbMode);
+ }
+ else
+ {
+ $log->warn("UNKNOWN FILE CHANGE mode=$mode, hash=$hash, change=$change, name=$name");
+ die;
+ }
+ }
+ close FILELIST;
+ } else {
+ # this is used to detect files removed from the repo
+ my $seen_files = {};
+
+ my $filepipe = open(FILELIST, '-|', 'git', 'ls-tree', '-z', '-r', $commit->{hash}) or die("Cannot call git-ls-tree : $!");
+ local $/ = "\0";
+ while ( <FILELIST> )
+ {
+ chomp;
+ unless ( /^(\d+)\s+(\w+)\s+([a-zA-Z0-9]+)\t(.*)$/o )
+ {
+ die("Couldn't process git-ls-tree line : $_");
+ }
+
+ my ( $mode, $git_type, $git_hash, $git_filename ) = ( $1, $2, $3, $4 );
+
+ $seen_files->{$git_filename} = 1;
+
+ my ( $oldhash, $oldrevision, $oldmode ) = (
+ $head->{$git_filename}{filehash},
+ $head->{$git_filename}{revision},
+ $head->{$git_filename}{mode}
+ );
+
+ 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 $dbMode )
+ {
+ my $newrevision = ( $oldrevision or 0 ) + 1;
+
+ $head->{$git_filename} = {
+ name => $git_filename,
+ revision => $newrevision,
+ filehash => $git_hash,
+ commithash => $commit->{hash},
+ modified => $cvsDate,
+ author => $commit->{author},
+ mode => $dbMode,
+ };
+
+
+ $self->insert_rev($git_filename, $newrevision, $git_hash, $commit->{hash}, $cvsDate, $commit->{author}, $dbMode);
+ }
+ }
+ close FILELIST;
+
+ # Detect deleted files
+ foreach my $file ( sort keys %$head )
+ {
+ unless ( exists $seen_files->{$file} or $head->{$file}{filehash} eq "deleted" )
+ {
+ $head->{$file}{revision}++;
+ $head->{$file}{filehash} = "deleted";
+ $head->{$file}{commithash} = $commit->{hash};
+ $head->{$file}{modified} = $cvsDate;
+ $head->{$file}{author} = $commit->{author};
+
+ $self->insert_rev($file, $head->{$file}{revision}, $head->{$file}{filehash}, $commit->{hash}, $cvsDate, $commit->{author}, $head->{$file}{mode});
+ }
+ }
+ # END : "Detect deleted files"
+ }
+
+
+ if (exists $commit->{mergemsg})
+ {
+ $self->insert_mergelog($commit->{hash}, $commit->{mergemsg});
+ }
+
+ $lastpicked = $commit->{hash};
+
+ $self->_set_prop("last_commit", $commit->{hash});
+ }
+
+ $self->delete_head();
+ foreach my $file ( sort keys %$head )
+ {
+ $self->insert_head(
+ $file,
+ $head->{$file}{revision},
+ $head->{$file}{filehash},
+ $head->{$file}{commithash},
+ $head->{$file}{modified},
+ $head->{$file}{author},
+ $head->{$file}{mode},
+ );
+ }
+ # invalidate the gethead cache
+ $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.
+
+ $mode=~/^\d{3}(\d)\d\d$/;
+ 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;
+ my $name = shift;
+ my $revision = shift;
+ my $filehash = shift;
+ my $commithash = shift;
+ my $modified = shift;
+ my $author = shift;
+ my $mode = shift;
+ my $tablename = $self->tablename("revision");
+
+ my $insert_rev = $self->{dbh}->prepare_cached("INSERT INTO $tablename (name, revision, filehash, commithash, modified, author, mode) VALUES (?,?,?,?,?,?,?)",{},1);
+ $insert_rev->execute($name, $revision, $filehash, $commithash, $modified, $author, $mode);
+}
+
+sub insert_mergelog
+{
+ my $self = shift;
+ my $key = shift;
+ my $value = shift;
+ my $tablename = $self->tablename("commitmsgs");
+
+ my $insert_mergelog = $self->{dbh}->prepare_cached("INSERT INTO $tablename (key, value) VALUES (?,?)",{},1);
+ $insert_mergelog->execute($key, $value);
+}
+
+sub delete_head
+{
+ my $self = shift;
+ my $tablename = $self->tablename("head");
+
+ my $delete_head = $self->{dbh}->prepare_cached("DELETE FROM $tablename",{},1);
+ $delete_head->execute();
+}
+
+sub insert_head
+{
+ my $self = shift;
+ my $name = shift;
+ my $revision = shift;
+ my $filehash = shift;
+ my $commithash = shift;
+ my $modified = shift;
+ my $author = shift;
+ my $mode = shift;
+ my $tablename = $self->tablename("head");
+
+ my $insert_head = $self->{dbh}->prepare_cached("INSERT INTO $tablename (name, revision, filehash, commithash, modified, author, mode) VALUES (?,?,?,?,?,?,?)",{},1);
+ $insert_head->execute($name, $revision, $filehash, $commithash, $modified, $author, $mode);
+}
+
+sub _get_prop
+{
+ my $self = shift;
+ my $key = shift;
+ my $tablename = $self->tablename("properties");
+
+ my $db_query = $self->{dbh}->prepare_cached("SELECT value FROM $tablename WHERE key=?",{},1);
+ $db_query->execute($key);
+ my ( $value ) = $db_query->fetchrow_array;
+
+ return $value;
+}
+
+sub _set_prop
+{
+ my $self = shift;
+ my $key = shift;
+ my $value = shift;
+ my $tablename = $self->tablename("properties");
+
+ my $db_query = $self->{dbh}->prepare_cached("UPDATE $tablename SET value=? WHERE key=?",{},1);
+ $db_query->execute($value, $key);
+
+ unless ( $db_query->rows )
+ {
+ $db_query = $self->{dbh}->prepare_cached("INSERT INTO $tablename (key, value) VALUES (?,?)",{},1);
+ $db_query->execute($key, $value);
+ }
+
+ return $value;
+}
+
+=head2 gethead
+
+=cut
+
+sub gethead
+{
+ my $self = shift;
+ my $intRev = shift;
+ my $tablename = $self->tablename("head");
+
+ return $self->{gethead_cache} if ( defined ( $self->{gethead_cache} ) );
+
+ my $db_query = $self->{dbh}->prepare_cached("SELECT name, filehash, mode, revision, modified, commithash, author FROM $tablename ORDER BY name ASC",{},1);
+ $db_query->execute();
+
+ my $tree = [];
+ while ( my $file = $db_query->fetchrow_hashref )
+ {
+ if(!$intRev)
+ {
+ $file->{revision} = "1.$file->{revision}"
+ }
+ push @$tree, $file;
+ }
+
+ $self->{gethead_cache} = $tree;
+
+ 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 (tree-ish), 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,$totalRevs);
+}
+
+=head2 getmeta
+
+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
+{
+ my $self = shift;
+ my $filename = shift;
+ my $revision = shift;
+ my $tablename_rev = $self->tablename("revision");
+ my $tablename_head = $self->tablename("head");
+
+ if ( ref($revision) eq "HASH" )
+ {
+ $revision = $revision->{tag};
+ }
+
+ # 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
+ # likelihood 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) )
+ {
+ 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;
+ }
+
+ $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
+
+this function takes a commithash and returns the commit message for that commit
+
+=cut
+sub commitmessage
+{
+ my $self = shift;
+ my $commithash = shift;
+ my $tablename = $self->tablename("commitmsgs");
+
+ die("Need commithash") unless ( defined($commithash) and $commithash =~ /^[a-zA-Z0-9]{40}$/ );
+
+ my $db_query;
+ $db_query = $self->{dbh}->prepare_cached("SELECT value FROM $tablename WHERE key=?",{},1);
+ $db_query->execute($commithash);
+
+ my ( $message ) = $db_query->fetchrow_array;
+
+ if ( defined ( $message ) )
+ {
+ $message .= " " if ( $message =~ /\n$/ );
+ return $message;
+ }
+
+ my @lines = safe_pipe_capture("git", "cat-file", "commit", $commithash);
+ shift @lines while ( $lines[0] =~ /\S/ );
+ $message = join("",@lines);
+ $message .= " " if ( $message =~ /\n$/ );
+ return $message;
+}
+
+=head2 gethistorydense
+
+This function takes a filename (with path) argument and returns an arrayofarrays
+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 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=? AND filehash!='deleted' ORDER BY revision DESC",{},1);
+ $db_query->execute($filename);
+
+ my $result = $db_query->fetchall_arrayref;
+
+ my $i;
+ for($i=0 ; $i<scalar(@$result) ; $i++)
+ {
+ $result->[$i][0]="1." . $result->[$i][0];
+ }
+
+ return $result;
+}
+
+=head2 escapeRefName
+
+Apply an escape mechanism to compensate for characters that
+git ref names can have that CVS tags can not.
+
+=cut
+sub escapeRefName
+{
+ my($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-",$1)/eg;
+ }
+}
+
+=head2 unescapeRefName
+
+Undo an escape mechanism to compensate for characters that
+git ref names can have that CVS tags can not.
+
+=cut
+sub unescapeRefName
+{
+ my($self,$refName)=@_;
+
+ # 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 $char;
+}
+
+=head2 in_array()
+
+from Array::PAT - mimics the in_array() function
+found in PHP. Yuck but works for small arrays.
+
+=cut
+sub in_array
+{
+ my ($check, @array) = @_;
+ my $retval = 0;
+ foreach my $test (@array){
+ if($check eq $test){
+ $retval = 1;
+ }
+ }
+ return $retval;
+}
+
+=head2 safe_pipe_capture
+
+an alternative to `command` that allows input to be passed as an array
+to work around shell problems with weird characters in arguments
+
+=cut
+sub safe_pipe_capture {
+
+ my @output;
+
+ if (my $pid = open my $child, '-|') {
+ @output = (<$child>);
+ close $child or die join(' ',@_).": $! $?";
+ } else {
+ exec(@_) or die "$! $?"; # exec() can fail the executable can't be found
+ }
+ return wantarray ? @output : join('',@output);
+}
+
+=head2 mangle_dirname
+
+create a string from a directory name that is suitable to use as
+part of a filename, mainly by converting all chars except \w.- to _
+
+=cut
+sub mangle_dirname {
+ my $dirname = shift;
+ return unless defined $dirname;
+
+ $dirname =~ s/[^\w.-]/_/g;
+
+ return $dirname;
+}
+
+=head2 mangle_tablename
+
+create a string from a that is suitable to use as part of an SQL table
+name, mainly by converting all chars except \w to _
+
+=cut
+sub mangle_tablename {
+ my $tablename = shift;
+ return unless defined $tablename;
+
+ $tablename =~ s/[^\w_]/_/g;
+
+ return $tablename;
+}
+
+1;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 07:39:08 +0000