get_tree_entry: map blank requested entry to tree root

diff --git a/git-cvsimport.perl b/git-cvsimport.perl
index 26867751d76f0a86bf406274bd916191d3a5bdbd..1018f4f6fa42c16a11930283f8ddf2c2f87642d3 100755 (executable)
--- a/git-cvsimport.perl
+++ b/git-cvsimport.perl
@@ -29,7 +29,7 @@
 $SIG{'PIPE'}="IGNORE";
 $ENV{'TZ'}="UTC";
 
-our ($opt_h,$opt_o,$opt_v,$opt_k,$opt_u,$opt_d,$opt_p,$opt_C,$opt_z,$opt_i,$opt_P, $opt_s,$opt_m,$opt_M,$opt_A,$opt_S,$opt_L);
+our ($opt_h,$opt_o,$opt_v,$opt_k,$opt_u,$opt_d,$opt_p,$opt_C,$opt_z,$opt_i,$opt_P, $opt_s,$opt_m,$opt_M,$opt_A,$opt_S,$opt_L, $opt_a);
 my (%conv_author_name, %conv_author_email);
 
 sub usage() {
@@ -37,7 +37,7 @@ ()
 Usage: ${\basename $0}     # fetch/update GIT from CVS
        [-o branch-for-HEAD] [-h] [-v] [-d CVSROOT] [-A author-conv-file]
        [-p opts-for-cvsps] [-C GIT_repository] [-z fuzz] [-i] [-k] [-u]
-       [-s subst] [-m] [-M regex] [-S regex] [CVS_module]
+       [-s subst] [-a] [-m] [-M regex] [-S regex] [CVS_module]
 END
        exit(1);
 }
@@ -105,6 +105,8 @@ ($)
 }
 $opt_o ||= "origin";
 $opt_s ||= "-";
+$opt_a ||= 0;
+
 my $git_tree = $opt_C;
 $git_tree ||= ".";
 
@@ -573,9 +575,11 @@ ($$)
 # run cvsps into a file unless we are getting
 # it passed as a file via $opt_P
 #
+my $cvspsfile;
 unless ($opt_P) {
        print "Running cvsps...\n" if $opt_v;
        my $pid = open(CVSPS,"-|");
+       my $cvspsfh;
        die "Cannot fork: $!\n" unless defined $pid;
        unless ($pid) {
                my @opt;
@@ -588,18 +592,18 @@ ($$)
                exec("cvsps","--norc",@opt,"-u","-A",'--root',$opt_d,$cvs_tree);
                die "Could not start cvsps: $!\n";
        }
-       my ($cvspsfh, $cvspsfile) = tempfile('gitXXXXXX', SUFFIX => '.cvsps',
-                                            DIR => File::Spec->tmpdir());
+       ($cvspsfh, $cvspsfile) = tempfile('gitXXXXXX', SUFFIX => '.cvsps',
+                                         DIR => File::Spec->tmpdir());
        while (<CVSPS>) {
            print $cvspsfh $_;
        }
        close CVSPS;
        close $cvspsfh;
-       $opt_P = $cvspsfile;
+} else {
+       $cvspsfile = $opt_P;
 }
 
-
-open(CVS, "<$opt_P") or die $!;
+open(CVS, "<$cvspsfile") or die $!;
 
 ## cvsps output:
 #---------------------
@@ -829,7 +833,7 @@ sub commit {
                        $state = 11;
                        next;
                }
-               if ( $starttime - 300 - (defined $opt_z ? $opt_z : 300) <= $date) {
+               if (!$opt_a && $starttime - 300 - (defined $opt_z ? $opt_z : 300) <= $date) {
                        # skip if the commit is too recent
                        # that the cvsps default fuzz is 300s, we give ourselves another
                        # 300s just in case -- this also prevents skipping commits
@@ -934,6 +938,10 @@ sub commit {
 }
 commit() if $branch and $state != 11;
 
+unless ($opt_P) {
+       unlink($cvspsfile);
+}
+
 # The heuristic of repacking every 1024 commits can leave a
 # lot of unpacked data.  If there is more than 1MB worth of
 # not-packed objects, repack once more.