https://bugzilla.wikimedia.org/show_bug.cgi?id=55363
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Bug ID: 55363
Summary: Writer function unefficient mimetype dirent entry
rewriting
Product: openZIM
Version: unspecified
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: Unprioritized
Component: zimlib
Assignee: wikibugs-l@lists.wikimedia.org
Reporter: kel...@kiwix.org
Classification: Unclassified
Mobile Platform: ---
During the development of zimdiff/zimpatch we had the problem that two ZIM
files were almost equal, except that the mimetypes were not sorted in the same
way, so all dirent entry mimetype values were different.
This was an issue because zimpatches files were not equal to the original
files. To avoid this, the zimlib forces currently the order of the mimetypes in
the list in the header. They are sorted alphabeticaly.
Unfortunately, I see two problems with this:
* This changes the specification of the format (we still don't have changed
anything in the specifications)
* The sorting of the mimetypes is done after all articles are inserted and this
needs to rewrite all the dirent entries. Something which is really not
efficient/elegant.
I think an alternative approach would be to allow to force the mime-type list
before inserting the articles. This would shortcut the dynamic creation of this
mime-type list and consequently avoid the two problems listed above.
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