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-rwxr-xr-xgit-cvsexportcommit.perl35
1 files changed, 30 insertions, 5 deletions
diff --git a/git-cvsexportcommit.perl b/git-cvsexportcommit.perl
index 317a890..eaa3218 100755
--- a/git-cvsexportcommit.perl
+++ b/git-cvsexportcommit.perl
@@ -7,15 +7,15 @@ 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, $opt_w);
+our ($opt_h, $opt_P, $opt_p, $opt_v, $opt_c, $opt_f, $opt_a, $opt_m, $opt_d, $opt_u, $opt_w, $opt_W);
-getopts('uhPpvcfam:d:w:');
+getopts('uhPpvcfam:d:w:W');
$opt_h && usage();
die "Need at least one commit identifier!" unless @ARGV;
-if ($opt_w) {
+if ($opt_w || $opt_W) {
# Remember where GIT_DIR is before changing to CVS checkout
unless ($ENV{GIT_DIR}) {
# No GIT_DIR set. Figure it out for ourselves
@@ -25,7 +25,9 @@ if ($opt_w) {
}
# Make sure GIT_DIR is absolute
$ENV{GIT_DIR} = File::Spec->rel2abs($ENV{GIT_DIR});
+}
+if ($opt_w) {
if (! -d $opt_w."/CVS" ) {
die "$opt_w is not a CVS checkout";
}
@@ -116,6 +118,15 @@ if ($parent) {
}
}
+my $go_back_to = 0;
+
+if ($opt_W) {
+ $opt_v && print "Resetting to $parent\n";
+ $go_back_to = `git symbolic-ref HEAD 2> /dev/null ||
+ git rev-parse HEAD` || die "Could not determine current branch";
+ system("git checkout -q $parent^0") && die "Could not check out $parent^0";
+}
+
$opt_v && print "Applying to CVS commit $commit from parent $parent\n";
# grab the commit message
@@ -260,7 +271,11 @@ if ($dirty) {
}
print "Applying\n";
-`GIT_DIR= git-apply $context --summary --numstat --apply <.cvsexportcommit.diff` || die "cannot patch";
+if ($opt_W) {
+ system("git checkout -q $commit^0") && die "cannot patch";
+} else {
+ `GIT_DIR= git-apply $context --summary --numstat --apply <.cvsexportcommit.diff` || die "cannot patch";
+}
print "Patch applied successfully. Adding new files and directories to CVS\n";
my $dirtypatch = 0;
@@ -313,7 +328,9 @@ if ($dirtypatch) {
print "using a patch program. After applying the patch and resolving the\n";
print "problems you may commit using:";
print "\n cd \"$opt_w\"" if $opt_w;
- print "\n $cmd\n\n";
+ print "\n $cmd\n";
+ print "\n git checkout $go_back_to\n" if $go_back_to;
+ print "\n";
exit(1);
}
@@ -333,6 +350,14 @@ if ($opt_c) {
# clean up
unlink(".cvsexportcommit.diff");
+if ($opt_W) {
+ system("git checkout $go_back_to") && die "cannot move back to $go_back_to";
+ if (!($go_back_to =~ /^[0-9a-fA-F]{40}$/)) {
+ system("git symbolic-ref HEAD $go_back_to") &&
+ die "cannot move back to $go_back_to";
+ }
+}
+
# CVS version 1.11.x and 1.12.x sleeps the wrong way to ensure the timestamp
# used by CVS and the one set by subsequence file modifications are different.
# If they are not different CVS will not detect changes.