X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=git-cvsimport-script;h=8f57396c2d815a4209e5b52cfb82465d100c4069;hb=b7e438f951f68be704b001343811e9ff89da07f7;hp=cc684602f389f39c33380daef21208b25280d0f7;hpb=2eb6d82eaa869a1faf4ba3326fd628f76f9f93a8;p=git.git

diff --git a/git-cvsimport-script b/git-cvsimport-script
index cc684602..8f57396c 100755
--- a/git-cvsimport-script
+++ b/git-cvsimport-script
@@ -16,6 +16,8 @@
 use strict;
 use warnings;
 use Getopt::Std;
+use File::Spec;
+use File::Temp qw(tempfile);
 use File::Path qw(mkpath);
 use File::Basename qw(basename dirname);
 use Time::Local;
@@ -26,19 +28,19 @@ use POSIX qw(strftime dup2);
 $SIG{'PIPE'}="IGNORE";
 $ENV{'TZ'}="UTC";
 
-our($opt_h,$opt_o,$opt_v,$opt_d,$opt_p,$opt_C);
+our($opt_h,$opt_o,$opt_v,$opt_d,$opt_p,$opt_C,$opt_z,$opt_i);
 
 sub usage() {
 	print STDERR <<END;
 Usage: ${\basename $0}     # fetch/update GIT from CVS
-	   [ -o branch-for-HEAD ] [ -h ] [ -v ] [ -d CVSROOT ]
-       [ -p opts-for-cvsps ] [ -C GIT_repository ]
-       [ CVS_module ]
+       [ -o branch-for-HEAD ] [ -h ] [ -v ] [ -d CVSROOT ]
+       [ -p opts-for-cvsps ] [ -C GIT_repository ] [ -z fuzz ]
+       [ -i ] [ CVS_module ]
 END
 	exit(1);
 }
 
-getopts("hqvo:d:p:C:") or usage();
+getopts("hivo:d:p:C:z:") or usage();
 usage if $opt_h;
 
 @ARGV <= 1 or usage();
@@ -315,6 +317,7 @@ sub file {
 	    $res = $self->_line($fh);
 	    die "No input: $fn $rev\n" unless defined $res;
 	}
+	close ($fh);
 
 	return ($name, $res);
 }
@@ -357,8 +360,6 @@ sub pmode($) {
 	return $m;
 }
 
-my $tmpcv = "/var/cache/cvs";
-
 sub getwd() {
 	my $pwd = `pwd`;
 	chomp $pwd;
@@ -372,11 +373,18 @@ chdir($git_tree);
 
 my $last_branch = "";
 my $orig_branch = "";
+my $forward_master = 0;
 my %branch_date;
 
 my $git_dir = $ENV{"GIT_DIR"} || ".git";
 $git_dir = getwd()."/".$git_dir unless $git_dir =~ m#^/#;
 $ENV{"GIT_DIR"} = $git_dir;
+my $orig_git_index;
+$orig_git_index = $ENV{GIT_INDEX_FILE} if exists $ENV{GIT_INDEX_FILE};
+my ($git_ih, $git_index) = tempfile('gitXXXXXX', SUFFIX => '.idx',
+				    DIR => File::Spec->tmpdir());
+close ($git_ih);
+$ENV{GIT_INDEX_FILE} = $git_index;
 unless(-d $git_dir) {
 	system("git-init-db");
 	die "Cannot init the GIT db at $git_tree: $?\n" if $?;
@@ -397,6 +405,25 @@ unless(-d $git_dir) {
 		$last_branch = "master";
 	}
 	$orig_branch = $last_branch;
+	if (-f "$git_dir/CVS2GIT_HEAD") {
+		die <<EOM;
+CVS2GIT_HEAD exists.
+Make sure your working directory corresponds to HEAD and remove CVS2GIT_HEAD.
+You may need to run
+
+    git-read-tree -m -u CVS2GIT_HEAD HEAD
+EOM
+	}
+	system('cp', "$git_dir/HEAD", "$git_dir/CVS2GIT_HEAD");
+
+	$forward_master =
+	    $opt_o ne 'master' && -f "$git_dir/refs/heads/master" &&
+	    system('cmp', '-s', "$git_dir/refs/heads/master", 
+				"$git_dir/refs/heads/$opt_o") == 0;
+
+	# populate index
+	system('git-read-tree', $last_branch);
+	die "read-tree failed: $?\n" if $?;
 
 	# Get the last import timestamps
 	opendir(D,"$git_dir/refs/heads");
@@ -425,7 +452,8 @@ die "Cannot fork: $!\n" unless defined $pid;
 unless($pid) {
 	my @opt;
 	@opt = split(/,/,$opt_p) if defined $opt_p;
-	exec("cvsps",@opt,"-x","-A","--cvs-direct",'--root',$opt_d,$cvs_tree);
+	unshift @opt, '-z', $opt_z if defined $opt_z;
+	exec("cvsps",@opt,"-u","-A","--cvs-direct",'--root',$opt_d,$cvs_tree);
 	die "Could not start cvsps: $!\n";
 }
 
@@ -498,8 +526,8 @@ my $commit = sub {
 		print "Parent ID $parent\n" if $opt_v;
 	}
 
-	my $pr = IO::Pipe->new();
-	my $pw = IO::Pipe->new();
+	my $pr = IO::Pipe->new() or die "Cannot open pipe: $!\n";
+	my $pw = IO::Pipe->new() or die "Cannot open pipe: $!\n";
 	$pid = fork();
 	die "Fork: $!\n" unless defined $pid;
 	unless($pid) {
@@ -640,18 +668,14 @@ while(<CVS>) {
 		}
 		if(($ancestor || $branch) ne $last_branch) {
 			print "Switching from $last_branch to $branch\n" if $opt_v;
-			system("git-read-tree","-m","$last_branch","$branch");
+			system("git-read-tree", $branch);
 			die "read-tree failed: $?\n" if $?;
 		}
-		if($branch ne $last_branch) {
-			unlink("$git_dir/HEAD");
-			symlink("refs/heads/$branch","$git_dir/HEAD");
-			$last_branch = $branch;
-		}
+		$last_branch = $branch if $branch ne $last_branch;
 		$state = 9;
 	} elsif($state == 8) {
 		$logmsg .= "$_\n";
-	} elsif($state == 9 and /^\s+(\S+):(INITIAL|\d(?:\.\d+)+)->(\d(?:\.\d+)+)\s*$/) {
+	} elsif($state == 9 and /^\s+(\S+):(INITIAL|\d+(?:\.\d+)+)->(\d+(?:\.\d+)+)\s*$/) {
 #	VERSION:1.96->1.96.2.1
 		my $init = ($2 eq "INITIAL");
 		my $fn = $1;
@@ -659,7 +683,7 @@ while(<CVS>) {
 		$fn =~ s#^/+##;
 		my ($tmpname, $size) = $cvs->file($fn,$rev);
 		print "".($init ? "New" : "Update")." $fn: $size bytes.\n" if $opt_v;
-		open my $F, '-|', "git-write-blob $tmpname"
+		open my $F, '-|', "git-hash-object -w $tmpname"
 			or die "Cannot create object: $!\n";
 		my $sha = <$F>;
 		chomp $sha;
@@ -686,26 +710,33 @@ while(<CVS>) {
 }
 &$commit() if $branch and $state != 11;
 
+unlink($git_index);
+
+if (defined $orig_git_index) {
+	$ENV{GIT_INDEX_FILE} = $orig_git_index;
+} else {
+	delete $ENV{GIT_INDEX_FILE};
+}
+
 # Now switch back to the branch we were in before all of this happened
 if($orig_branch) {
-	print "DONE; switching back to $orig_branch\n" if $opt_v;
+	print "DONE\n" if $opt_v;
+	system("cp","$git_dir/refs/heads/$opt_o","$git_dir/refs/heads/master")
+		if $forward_master;
+	unless ($opt_i) {
+		system('git-read-tree', '-m', '-u', 'CVS2GIT_HEAD', 'HEAD');
+		die "read-tree failed: $?\n" if $?;
+	}
 } else {
 	$orig_branch = "master";
 	print "DONE; creating $orig_branch branch\n" if $opt_v;
 	system("cp","$git_dir/refs/heads/$opt_o","$git_dir/refs/heads/master")
 		unless -f "$git_dir/refs/heads/master";
+	unlink("$git_dir/HEAD");
+	symlink("refs/heads/$orig_branch","$git_dir/HEAD");
+	unless ($opt_i) {
+		system('git checkout');
+		die "checkout failed: $?\n" if $?;
+	}
 }
-
-if ($orig_branch) {
-	system("git-read-tree",$last_branch);
-	die "read-tree failed: $?\n" if $?;
-} else {
-	system('git-read-tree', $orig_branch);
-	die "read-tree failed: $?\n" if $?;
-	system('git-checkout-cache', '-a');
-	die "checkout-cache failed: $?\n" if $?;
-}
-
-unlink("$git_dir/HEAD");
-symlink("refs/heads/$orig_branch","$git_dir/HEAD");
-
+unlink("$git_dir/CVS2GIT_HEAD");