Modern CPUs have special instructions to accelerate computing
SHA hashes.
The Qt QCryptographicHash code is standard C, so not taking
advantage of those though.
Outsource the hashing to OpenSSL that does.
Shaves off some seconds during verification stage.
Append "rpi-imager/version-num" to the default User-Agent when curl is
downloading the image so that image hosts can more easily distinguish
rpi-imager traffic from other traffic.
The default Info.plist template provided by CMake doesn't have this key, and
CMake only has minimal support for settingstypically found in this file.
In order to specify NSPrincipalClass, we need to provide the whole Info.plist instead.
Info.plist is also specified as a dependancy to the application so that it will
appear in the project explorer, and changes to this file will trigger a rebuild.
- Use larger buffer size when writing uncompressed files
(was libcurl's default of 16 kb, change it to 128 kb)
- Uncompress the next MB of data, while it is hashing/writing to
disk in seperate thread.
Appereantly the function does not work as advertised on Windows 7.
Do call it, but ignore errors.
Hopefully any real write errors, will be detected when reading
back image instead.
The software requires at least:
- libcurl 7.32.0 (released Aug 12 2013!)
- libarchive 3.2.0 (released Apr 30 2016)
- util-linux 2.27 (released Sep 7 2015)
While technically we could build libcurl and libarchive statically
(like we do for Mac and Windows) if the system has older libs,
it's likely that running the software on systems that old may
give other problems as well (e.g. does lsblk --json (util-linux)
and udisks2 work correctly?), so do not bother.
Closes#16
- We are only using zlib indirectly through libarchive
(For Windows/Mac OS X we do keep requiring zlib headers, as we
need them to build the bundled libarchive on these platforms)
