wimlib_overwrite(): Don't force full rebuild of packed WIM

[wimlib] / src / write.c

diff --git a/src/write.c b/src/write.c
index 7e2ac220ef82a923f4d1b436186a6c836df99aa7..7d6ee2df826e3b0ac1e3c80df1ea43bceddbaf54 100644 (file)
--- a/src/write.c
+++ b/src/write.c
@@ -1213,6 +1213,12 @@ write_stream_list(struct list_head *stream_list,
         * bytes needing to be compressed is less 2000000 (heuristic value).  */
        if (out_ctype != WIMLIB_COMPRESSION_TYPE_NONE) {
 
+               if (out_ctype == WIMLIB_COMPRESSION_TYPE_LZMS &&
+                   ctx.lookup_table != NULL) {
+                       WARNING("LZMS compression not implemented; data will "
+                               "actually be written uncompressed.");
+               }
+
                if (ctx.num_bytes_to_compress >= 2000000) {
                        ret = new_parallel_chunk_compressor(out_ctype,
                                                            out_chunk_size,
@@ -2937,15 +2943,10 @@ can_overwrite_wim_inplace(const WIMStruct *wim, int write_flags)
        if (wim_is_pipable(wim) || (write_flags & WIMLIB_WRITE_FLAG_PIPABLE))
                return false;
 
-       if (wim->hdr.wim_version != WIM_VERSION_PACKED_STREAMS) {
-               if (wim->compression_type != wim->out_compression_type)
-                       return false;
-               if (wim->chunk_size != wim->out_chunk_size)
-                       return false;
-       } else {
-               if (write_flags & WIMLIB_WRITE_FLAG_NO_PACK_STREAMS)
-                       return false;
-       }
+       if (wim->compression_type != wim->out_compression_type)
+               return false;
+       if (wim->chunk_size != wim->out_chunk_size)
+               return false;
 
        return true;
 }