`a << b` is undefined when `a` is negative, and `a >> b` is
implementation-defined. The correct thing to do here is to cast to
unsigned, swap the bytes there and then swap back.
This also improves performance on some compilers: Clang is smart enough
to recognise that we're byteswapping here and reduce it to a single
`bswap` instruction on x86_64, but only for the unsigned versions.
Models are based on the models from my go-modpacksch library.
License:
========
The MIT License (MIT)
Copyright (c) Jamie Mansfield <https://www.jamiemansfield.me/>
Copyright (c) contributors
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
Forge apparently removed all `.pack.xz` files without warning.
It broke a bunch of stuff, as always. But it also means we don't need some ugly code anymore.
This is removed:
- Support for 'forge-pack-xz' and the forge-specific file download compression.
- The pack200 library we no longer need.
This stays:
- The LZMA decompression library - we may still want to use it.
Previously, when the main instance of MultiMC would receive an `import`
or `launch` message from another instance, it would split the message on
each space, and only read the first word of the argument (zip path/URL
or instance ID). This commit fixes that problem by sectioning the
message string instead.
