Re: [Lzip-bug] Regarding Verbose Output for Decompression in Lzip

[Antonio Diaz Diaz]

Hi Timothy,

Timothy Beryl Grahek wrote:
> When comparing verbose outputs of compressing and decompressing in Lzip,
> I notice a difference in the amount of detail. Specifically,
> decompression results in no estimated time output; whereas, compression
> lets you know percentage wise how long it will take for compression to
> finish. Is there a way to make both decompression and compression
> equivalent in their output when specifying the verbose option?

Thanks. This has been recently requested[1]. I plan to start working on 
it in a few days, and then implement it as soon as I can work out some 
details[2]. Suggestions are welcome. :-)

[1] http://lists.nongnu.org/archive/html/lzip-bug/2017-07/msg00005.html
[2] http://lists.nongnu.org/archive/html/lzip-bug/2017-07/msg00011.html


> This is particularly important when I think about the XZ format having
> more verbose output than Lzip when using two v's on both programs. XZ is
> heavily undesirable, of course, but I just thought I'd point that out
> considering the unfortunate popularity of XZ.

I find the output of lzip much nicer (and similar to gzip/bzip2) than 
that of xz, specially when decompressing multiple files. In particular I 
like that lzip prints one line per file, and shows an "ok" at the end:

$ lzip -tvv *.lz
  tzdb-2016g.tar.lz:  5.580:1,  1.434 bits/byte, 82.08% saved.  ok
  tzdb-2016h.tar.lz:  5.571:1,  1.436 bits/byte, 82.05% saved.  ok
  tzdb-2016i.tar.lz:  5.561:1,  1.439 bits/byte, 82.02% saved.  ok
  tzdb-2016j.tar.lz:  5.573:1,  1.435 bits/byte, 82.06% saved.  ok
  tzdb-2017a.tar.lz:  5.504:1,  1.454 bits/byte, 81.83% saved.  ok
  tzdb-2017b.tar.lz:  5.496:1,  1.456 bits/byte, 81.81% saved.  ok
---------------------------------------------------------------------------
$ xz -tvv *.xz
libidn2-2.0.1.tar.xz (1/4)
  100 %   1,133.6 KiB / 8,690.0 KiB = 0.130                   0:01

par2cmdline-0.7.0.tar.xz (2/4)
  100 %      2,573.0 KiB / 10.7 MiB = 0.235                   0:01

file-roller-3.24.1.tar.xz (3/4)
  100 %      1,394.7 KiB / 11.6 MiB = 0.117                   0:01

man-db-2.7.6.1.tar.xz (4/4)
  100 %      1,505.2 KiB / 12.9 MiB = 0.114                   0:02


Best regards,
Antonio.