libdmg-hfsplus

This is a stripped down version of libdmg-hfsplus, which only contains the dmg tool.

Ideally, the minimal c code could be ported to Rust. We could also reimplement the build ISO functionality and skip the genisoimage step during gitian building.

Build

zlib is required.

Configure, compile and run:

cmake . -B build
make -C build/dmg -j8
build/dmg/dmg

Compare DMG output for a Bitcoin-Core ISO (from genisoimage):

git clean -fxd && \
cmake . -B build && \
make -C build/dmg -j8 && \
build/dmg/dmg Bitcoin-Core.iso osx-unsigned.dmg && \
diffoscope osx-unsigned-orig.dmg osx-unsigned.dmg

Running Clang tools:

clang-format -i dmg/*.c
clang-tidy -p build --checks=modernize dmg/*.c

DMG Notes

http://newosxbook.com/DMG.html https://developer.apple.com/library/archive/technotes/tn2166/_index.html

License

This work is released under the terms of the GNU General Public License, version 3. The full text of the license can be found in the LICENSE file.