git-p4: Unset P4DIFF environment variable when using 'p4 -du diff'

diff --git a/git-cvsexportcommit.perl b/git-cvsexportcommit.perl
index d2e50c34292bc0ccb6e914ed595da9fd8a7e141d..b6036bd4d305215b4a70b6fd0fe54d7607dbe068 100755 (executable)
--- a/git-cvsexportcommit.perl
+++ b/git-cvsexportcommit.perl
@@ -5,6 +5,7 @@
 use File::Temp qw(tempdir);
 use Data::Dumper;
 use File::Basename qw(basename dirname);
+use File::Spec;
 
 our ($opt_h, $opt_P, $opt_p, $opt_v, $opt_c, $opt_f, $opt_a, $opt_m, $opt_d, $opt_u, $opt_w);
 
@@ -15,17 +16,15 @@
 die "Need at least one commit identifier!" unless @ARGV;
 
 if ($opt_w) {
+       # Remember where GIT_DIR is before changing to CVS checkout
        unless ($ENV{GIT_DIR}) {
-               # Remember where our GIT_DIR is before changing to CVS checkout
+               # No GIT_DIR set. Figure it out for ourselves
                my $gd =`git-rev-parse --git-dir`;
                chomp($gd);
-               if ($gd eq '.git') {
-                       my $wd = `pwd`;
-                       chomp($wd);
-                       $gd = $wd."/.git"       ;
-               }
                $ENV{GIT_DIR} = $gd;
        }
+       # Make sure GIT_DIR is absolute
+       $ENV{GIT_DIR} = File::Spec->rel2abs($ENV{GIT_DIR});
 
        if (! -d $opt_w."/CVS" ) {
                die "$opt_w is not a CVS checkout";
@@ -198,15 +197,39 @@
       my @updated = xargs_safe_pipe_capture([@cvs, 'update'], @canstatusfiles);
       print @updated;
     }
-    my @cvsoutput;
-    @cvsoutput = xargs_safe_pipe_capture([@cvs, 'status'], @canstatusfiles);
-    my $matchcount = 0;
-    foreach my $l (@cvsoutput) {
-        chomp $l;
-        if ( $l =~ /^File:/ and  $l =~ /Status: (.*)$/ ) {
-            $cvsstat{$canstatusfiles[$matchcount]} = $1;
-            $matchcount++;
+    # "cvs status" reorders the parameters, notably when there are multiple
+    # arguments with the same basename.  So be precise here.
+
+    my %added = map { $_ => 1 } @afiles;
+    my %todo = map { $_ => 1 } @canstatusfiles;
+
+    while (%todo) {
+      my @canstatusfiles2 = ();
+      my %fullname = ();
+      foreach my $name (keys %todo) {
+       my $basename = basename($name);
+
+       $basename = "no file " . $basename if (exists($added{$basename}));
+       chomp($basename);
+
+       if (!exists($fullname{$basename})) {
+         $fullname{$basename} = $name;
+         push (@canstatusfiles2, $name);
+         delete($todo{$name});
         }
+      }
+      my @cvsoutput;
+      @cvsoutput = xargs_safe_pipe_capture([@cvs, 'status'], @canstatusfiles2);
+      foreach my $l (@cvsoutput) {
+        chomp $l;
+        if ($l =~ /^File:\s+(.*\S)\s+Status: (.*)$/) {
+         if (!exists($fullname{$1})) {
+           print STDERR "Huh? Status reported for unexpected file '$1'\n";
+         } else {
+           $cvsstat{$fullname{$1}} = $2;
+         }
+       }
+      }
     }
 }