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<title>xavi/slcl/cmake/Findfdzipstream.cmake, branch master</title>
<subtitle>Small and lightweight cloud storage written in C99 and POSIX.1-2008.
</subtitle>
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<updated>2025-10-08T00:03:05+00:00</updated>
<entry>
<title>Implement directory download as ZIP</title>
<updated>2025-10-08T00:03:05+00:00</updated>
<author>
<name>Xavier Del Campo Romero</name>
<email>xavi92@disroot.org</email>
</author>
<published>2025-10-06T21:02:51+00:00</published>
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<id>urn:sha1:00dd37604d50cbf3fb27ec0631b4d4b6d2ee893a</id>
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Thanks to the fdzipstream library [1] and zlib [2], it is possible to
generate ZIP files on-the-fly, therefore requiring no extra disk space
usage and only a small amount of memory.

Unfortunately, as of the time of this writing fdzipstream is not
packaged by any distributions yet [3], so it had to be imported as a git
submodule as a workaround.

While libarchive [4] could be an interesting alternative, writing ZIP
files is only supported by very recent versions (&gt;= 3.8.0), which are
still not packaged by many distributions [5], either.

Moreover, libarchive is a package with several dependencies other than
zlib and is significantly larger compared to fdzipstreams, so
fdzipstreams was ultimately considered a better fit for this purpose.

[1]: https://github.com/CTrabant/fdzipstream.git
[2]: http://zlib.net/
[3]: https://repology.org/projects/?search=fdzipstream
[4]: https://www.libarchive.org/
[5]: https://repology.org/project/libarchive/versions
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