On Thu, 21 Nov 2013 09:08:00 +1100 tpgww@xxxxxxxxxxx wrote: > > > The 7za documentation is vague about creation of new archives. The > > > pack command used to be of the form you've suggested, but was > > > changed > > > - and I don't recall exactly why so. Possibly duplication of > > > items in the archive? Anyhow, it's back to that now. See what > > > happens. > > > > Was discussed ages ago: > > //www.freelists.org/post/emelfm2/Can-not-use-7za-to-compress-directory > > And 7z compressing is still unusable. > > So there's a choice to be made: > > 1. tar everything selected, before adding the tarball to the 7z > archive > > 2. tar everything selected if any dir is selected, before adding to > archive > > 3. tar any selected dir, before adding all items to archive > > ATM (having been changed a week or so ago), option 2 is used. > > I suppose any tar involvement makes it less portable than we might > want. It is recommended that if tar is to be used/involved then lzma/xz should be used rather than 7z as both lzma/xz are supported in tar whereas 7z Is Not. (and no I did not just pull that out of my ass.... see the Limitations section here http://en.wikipedia.org/wiki/7z) As now implemented in emelfm2 using 7z on the directory /Documents uses sh>tar cvf - "Documents" | 7za a -t7z -si "Documents.7z" <snip> Creating archive Documents.7z Compressing [Content] Everything is Ok sh>tar cvf - "Documents" | 7za a -t7z -si "Documents.7z" (23497) sh>returned '0' If I then unpack that archive Processing archive: /home/charles/Notebooks/Documents.7z Extracting Documents Everything is Ok Size: 117135360 Compressed: 109667665 >7za x "/home/charles/Notebooks/Documents.7z" (30960) returned '0' The problem here is that the Document that was extracted Is Not a directory but a tar archive which Must be renamed Document.tar which Only then can be extracted as the directory /Documents It would be my preference/recommendation that directories be treated the same as files with 7z and also use ">7za a -t7z %%f > %s" If the user wants/needs to use tar he can choose 1 of the other tar supported formats available in emelfm2, personally I use tar.xz for all compression. Charles -- It's the thought, if any, that counts! ---------------------- Mageia release 4 (Cauldron) for x86_64$ On SuperSize....http://www.eslrahc.com Registered Linux user #182463 3.12.0-server-3.mga4 x86_64 ----------------------
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