git-cvsimport-script: move working directory forward
If HEAD happened to point to a cvs branch, move the
working directory forward to the tip of the branch.
Additionally, if master and "origin" are equal,
move master forward to new origin first.
diff --git a/git-cvsimport-script b/git-cvsimport-script
index 3e6d22e..cdf9891 100755
--- a/git-cvsimport-script
+++ b/git-cvsimport-script
@@ -372,6 +372,7 @@
my $last_branch = "";
my $orig_branch = "";
+my $forward_master = 0;
my %branch_date;
my $git_dir = $ENV{"GIT_DIR"} || ".git";
@@ -403,6 +404,21 @@
$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', $last_branch);
@@ -695,9 +711,19 @@
unlink($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\n" if $opt_v;
+ system("cp","$git_dir/refs/heads/$opt_o","$git_dir/refs/heads/master")
+ if $forward_master;
+ 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 $opt_v;
@@ -705,11 +731,7 @@
unless -f "$git_dir/refs/heads/master";
unlink("$git_dir/HEAD");
symlink("refs/heads/$orig_branch","$git_dir/HEAD");
- if (defined $orig_git_index) {
- $ENV{GIT_INDEX_FILE} = $orig_git_index;
- } else {
- delete $ENV{GIT_INDEX_FILE};
- }
system('git checkout');
die "checkout failed: $?\n" if $?;
}
+unlink("$git_dir/CVS2GIT_HEAD");
