Re: [PATCH] contrib/svn-fe: Fast script to remap svn history

>> This python script walks the commit sequence imported by svn-fe.
>> For each commit, it tries to identify the branch that was changed.
>> Commits are rewritten to be rooted according to the standard layout.
>> A basic heuristic of matching trees is used to find parents for the
>> first commit in a branch and for tags.
> 
> Nice, how easy would it be to extend it to deal with other layouts?

>> diff --git a/fast-import.c b/fast-import.c
>> index 2317b0f..8f68a89 100644
>> --- a/fast-import.c
>> +++ b/fast-import.c
>> @@ -1454,6 +1454,15 @@ static int tree_content_set(
>>                n = slash1 - p;
>>        else
>>                n = strlen(p);
>> +       if (!slash1 && !n) {
>> +               if (!S_ISDIR(mode))
>> +                       die("Root cannot be a non-directory");
>> +               hashcpy(root->versions[1].sha1, sha1);
>> +               if (root->tree)
>> +                       release_tree_content_recursive(root->tree);
>> +               root->tree = subtree;
>> +               return 1;
>> +       }
>>        if (!n)
>>                die("Empty path component found in input");
>>        if (!slash1 && !S_ISDIR(mode) && subtree)
> 
> What is this hunk about?