[jira] [Commented] (ZETACOMP-72) Extra empty files added to created zip file when packing directories explicitly

["gggeek (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ZETACOMP-72?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13018093#comment-13018093 ] 

gggeek commented on ZETACOMP-72:
--------------------------------

Further testing reveals that:
- adding a trailing slash to directory names passed to the ezcarchive makes the end result better: both windows and infozip can successfully unzip a zippped file with a single empty folder in it
- windows still has problems unzippping a more complex zip built by ezcarchive

> Extra empty files added to created zip file when packing directories explicitly
> -------------------------------------------------------------------------------
>
>                 Key: ZETACOMP-72
>                 URL: https://issues.apache.org/jira/browse/ZETACOMP-72
>             Project: Zeta Components
>          Issue Type: Bug
>          Components: Archive
>         Environment: win vista sp2 32bit / php 536
>            Reporter: gggeek
>         Attachments: ezoracle-2.2.0.zip, testfolder1.zip, testfolder2.zip
>
>
> When adding a bunch of folders and files to an archive, it's nice to be able to also have empty directories in the archive.
> And it's nice not to have to scan twice the set of files/folders to determine if any folder to be added is empty or not.
> So what I do is:
> - scan recursively a folder for any files + folders in it
> - pass the resulting list to ezcarchive
> What I get is a zip file that, when unzipped, has a 0-byte-sized file next to every folder (note: decompress tested using total commander, that uses under the hood info-zip code afaik. Using vista native unzipping, it's an empty file!)
> I guess this could be fixed by only passing a list of files to the ezcarchive, but I would thus loose empty folders in the archive.
> Reading the zip spec (http://www.info-zip.org/doc/) there seems to be no cler cut indication of empty-folders treatment. Some ppl say to add folders using "/." as filename, some say to use a specific extra_header byte...

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