Review Request 123832: libarchive: Improve the handling of archive_write_header() errors.

[Raphael Kubo da Costa]

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I'm sending this review request to gather feedback from the usability group on the UI changes this patch makes:
* Dropping use of `archive_error_string()` in the error messages. While on the error messages become less precise, using that function adds a piece of English text coming from libarchive to user-facing messages that are translated and lead to an ugly mixture of English and other languages in the same sentence. Additionally, `archive_error_string()` possibly returns a string that make more sense to the programmer than to users. If this makes sense I may change other error messages that make use of that function too.
* The actual contents of the error messages. Are they good enough?
* The decision to stop extracting/compressing when the first error is encountered, even if it is possible to proceed. I'm doing this because currently there is no good way to show a series of errors in the UI.

- Raphael Kubo da Costa


On May 17, 2015, 7:41 p.m., Raphael Kubo da Costa wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/123832/
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> 
> (Updated May 17, 2015, 7:41 p.m.)
> 
> 
> Review request for KDE Utils, KDE Usability and Raphael Kubo da Costa.
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> Bugs: 335411
>     http://bugs.kde.org/show_bug.cgi?id=335411
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> Repository: ark
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> Description
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> Errors while extracting an archive entry in copyFiles() were being
> discarded without informing the user, who would then believe the entire
> extraction had worked correctly. We now emit the error() signal when
> there is an error and cancel the extraction.
> 
> It also makes sense to adapt the code in writeFile() to the same format
> of using a switch() to test archive_write_header()'s return code to ease
> future maintenance.
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> Additionally, none of the error messages use archive_error_string()
> anymore. While this means the messages are less detailed, it also means
> users who use a translated KDE will not see part of the error messages
> hardcoded in English.
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> 
> Diffs
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>   plugins/libarchive/libarchivehandler.cpp 75cf759d5e67508288ee6a42d42b4c0d6b557afe 
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> Diff: https://git.reviewboard.kde.org/r/123832/diff/
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> Testing
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> Creating archives still works as before, and error messages during extraction (such as the one in bug 335411) are properly reported.
> 
> 
> Thanks,
> 
> Raphael Kubo da Costa
> 
>

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