xz: Make -vv show also decompressor memory usage.

diff --git a/src/xz/coder.c b/src/xz/coder.c
index 841f63a4de5fa9b2cb8d198b41acb1fba7d21da3..5182dddc3ff24f6a20a82da167b2fddb0cc6dfbf 100644 (file)
--- a/src/xz/coder.c
+++ b/src/xz/coder.c
@@ -184,6 +184,13 @@ coder_set_compression_settings(void)
        // Print memory usage info before possible dictionary
        // size auto-adjusting.
        message_mem_needed(V_DEBUG, memory_usage);
+       if (opt_mode == MODE_COMPRESS) {
+               const uint64_t decmem = lzma_raw_decoder_memusage(filters);
+               if (decmem != UINT64_MAX)
+                       message(V_DEBUG, _("Decompression will need "
+                                       "%s MiB of memory."), uint64_to_str(
+                                               round_up_to_mib(decmem), 0));
+       }
 
        if (memory_usage > memory_limit) {
                // If --no-auto-adjust was used or we didn't find LZMA1 or