git-tar-tree: no more void pointer arithmetic

[git.git] / git-cvsimport.perl

diff --git a/git-cvsimport.perl b/git-cvsimport.perl
old mode 100755 (executable)
new mode 100644 (file)
index 41ee9a6..f3daa6c
--- a/git-cvsimport.perl
+++ b/git-cvsimport.perl
@@ -23,7 +23,7 @@ use File::Basename qw(basename dirname);
 use Time::Local;
 use IO::Socket;
 use IO::Pipe;
-use POSIX qw(strftime dup2 :errno_h);
+use POSIX qw(strftime dup2 ENOENT);
 use IPC::Open2;
 
 $SIG{'PIPE'}="IGNORE";
@@ -371,7 +371,7 @@ sub file {
 }
 sub _fetchfile {
        my ($self, $fh, $cnt) = @_;
-       my $res;
+       my $res = 0;
        my $bufsize = 1024 * 1024;
        while($cnt) {
            if ($bufsize > $cnt) {
@@ -465,10 +465,15 @@ $git_dir = getwd()."/".$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} = $git_index;
+
+my %index; # holds filenames of one index per branch
+{   # init with an index for origin
+    my ($fh, $fn) = tempfile('gitXXXXXX', SUFFIX => '.idx',
+                            DIR => File::Spec->tmpdir());
+    close ($fh);
+    $index{$opt_o} = $fn;
+}
+$ENV{GIT_INDEX_FILE} = $index{$opt_o};
 unless(-d $git_dir) {
        system("git-init-db");
        die "Cannot init the GIT db at $git_tree: $?\n" if $?;
@@ -496,6 +501,13 @@ unless(-d $git_dir) {
        $tip_at_start = `git-rev-parse --verify HEAD`;
 
        # populate index
+       unless ($index{$last_branch}) {
+           my ($fh, $fn) = tempfile('gitXXXXXX', SUFFIX => '.idx',
+                                    DIR => File::Spec->tmpdir());
+           close ($fh);
+           $index{$last_branch} = $fn;
+       }
+       $ENV{GIT_INDEX_FILE} = $index{$last_branch};
        system('git-read-tree', $last_branch);
        die "read-tree failed: $?\n" if $?;
 
@@ -529,25 +541,39 @@ if ($opt_A) {
        write_author_info("$git_dir/cvs-authors");
 }
 
-my $pid = open(CVS,"-|");
-die "Cannot fork: $!\n" unless defined $pid;
-unless($pid) {
-       my @opt;
-       @opt = split(/,/,$opt_p) if defined $opt_p;
-       unshift @opt, '-z', $opt_z if defined $opt_z;
-       unshift @opt, '-q'         unless defined $opt_v;
-       unless (defined($opt_p) && $opt_p =~ m/--no-cvs-direct/) {
-               push @opt, '--cvs-direct';
+
+#
+# run cvsps into a file unless we are getting
+# it passed as a file via $opt_P
+#
+unless ($opt_P) {
+       print "Running cvsps...\n" if $opt_v;
+       my $pid = open(CVSPS,"-|");
+       die "Cannot fork: $!\n" unless defined $pid;
+       unless($pid) {
+               my @opt;
+               @opt = split(/,/,$opt_p) if defined $opt_p;
+               unshift @opt, '-z', $opt_z if defined $opt_z;
+               unshift @opt, '-q'         unless defined $opt_v;
+               unless (defined($opt_p) && $opt_p =~ m/--no-cvs-direct/) {
+                       push @opt, '--cvs-direct';
+               }
+               exec("cvsps","--norc",@opt,"-u","-A",'--root',$opt_d,$cvs_tree);
+               die "Could not start cvsps: $!\n";
        }
-       if ($opt_P) {
-           exec("cat", $opt_P);
-       } else {
-           exec("cvsps","--norc",@opt,"-u","-A",'--root',$opt_d,$cvs_tree);
-           die "Could not start cvsps: $!\n";
+       my ($cvspsfh, $cvspsfile) = tempfile('gitXXXXXX', SUFFIX => '.cvsps',
+                                            DIR => File::Spec->tmpdir());
+       while (<CVSPS>) {
+           print $cvspsfh $_;
        }
+       close CVSPS;
+       close $cvspsfh;
+       $opt_P = $cvspsfile;
 }
 
 
+open(CVS, "<$opt_P") or die $!;
+
 ## cvsps output:
 #---------------------
 #PatchSet 314
@@ -595,7 +621,11 @@ sub write_tree () {
 }
 
 my($patchset,$date,$author_name,$author_email,$branch,$ancestor,$tag,$logmsg);
-my(@old,@new,@skipped);
+my(@old,@new,@skipped,%ignorebranch);
+
+# commits that cvsps cannot place anywhere...
+$ignorebranch{'#CVSPS_NO_BRANCH'} = 1;
+
 sub commit {
        update_index(@old, @new);
        @old = @new = ();
@@ -618,14 +648,13 @@ sub commit {
        }
 
        my $commit_date = strftime("+0000 %Y-%m-%d %H:%M:%S",gmtime($date));
+       $ENV{GIT_AUTHOR_NAME} = $author_name;
+       $ENV{GIT_AUTHOR_EMAIL} = $author_email;
+       $ENV{GIT_AUTHOR_DATE} = $commit_date;
+       $ENV{GIT_COMMITTER_NAME} = $author_name;
+       $ENV{GIT_COMMITTER_EMAIL} = $author_email;
+       $ENV{GIT_COMMITTER_DATE} = $commit_date;
        my $pid = open2(my $commit_read, my $commit_write,
-               'env',
-               "GIT_AUTHOR_NAME=$author_name",
-               "GIT_AUTHOR_EMAIL=$author_email",
-               "GIT_AUTHOR_DATE=$commit_date",
-               "GIT_COMMITTER_NAME=$author_name",
-               "GIT_COMMITTER_EMAIL=$author_email",
-               "GIT_COMMITTER_DATE=$commit_date",
                'git-commit-tree', $tree, @commit_args);
 
        # compatibility with git2cvs
@@ -752,7 +781,16 @@ while(<CVS>) {
                        $state = 11;
                        next;
                }
+               if (exists $ignorebranch{$branch}) {
+                       print STDERR "Skipping $branch\n";
+                       $state = 11;
+                       next;
+               }
                if($ancestor) {
+                       if($ancestor eq $branch) {
+                               print STDERR "Branch $branch erroneously stems from itself -- changed ancestor to $opt_o\n";
+                               $ancestor = $opt_o;
+                       }
                        if(-f "$git_dir/refs/heads/$branch") {
                                print STDERR "Branch $branch already exists!\n";
                                $state=11;
@@ -760,6 +798,7 @@ while(<CVS>) {
                        }
                        unless(open(H,"$git_dir/refs/heads/$ancestor")) {
                                print STDERR "Branch $ancestor does not exist!\n";
+                               $ignorebranch{$branch} = 1;
                                $state=11;
                                next;
                        }
@@ -767,6 +806,7 @@ while(<CVS>) {
                        close(H);
                        unless(open(H,"> $git_dir/refs/heads/$branch")) {
                                print STDERR "Could not create branch $branch: $!\n";
+                               $ignorebranch{$branch} = 1;
                                $state=11;
                                next;
                        }
@@ -777,8 +817,17 @@ while(<CVS>) {
                }
                if(($ancestor || $branch) ne $last_branch) {
                        print "Switching from $last_branch to $branch\n" if $opt_v;
-                       system("git-read-tree", $branch);
-                       die "read-tree failed: $?\n" if $?;
+                       unless ($index{$branch}) {
+                           my ($fh, $fn) = tempfile('gitXXXXXX', SUFFIX => '.idx',
+                                                    DIR => File::Spec->tmpdir());
+                           close ($fh);
+                           $index{$branch} = $fn;
+                           $ENV{GIT_INDEX_FILE} = $index{$branch};
+                           system("git-read-tree", $branch);
+                           die "read-tree failed: $?\n" if $?;
+                       } else {
+                           $ENV{GIT_INDEX_FILE} = $index{$branch};
+                       }
                }
                $last_branch = $branch if $branch ne $last_branch;
                $state = 9;
@@ -842,7 +891,9 @@ while(<CVS>) {
 }
 commit() if $branch and $state != 11;
 
-unlink($git_index);
+foreach my $git_index (values %index) {
+    unlink($git_index);
+}
 
 if (defined $orig_git_index) {
        $ENV{GIT_INDEX_FILE} = $orig_git_index;