First step of making possibility to have offline snapshots of
'termux-packages' repo. Useful for making full repo snapshots.
That will allow to preinstall tools like Cmake, Go, Meson to
directory stored within packages tree and will not be wiped when
using ./clean.sh.
Next steps will also implement offlining of the package sources
and NDK standalone toolchain.
Variables
TERMUX_PKG_PLATFORM_INDEPENDENT
TERMUX_DEBUG
TERMUX_PKG_HAS_DEBUG
TERMUX_PKG_ESSENTIAL
TERMUX_SUBPKG_ESSENTIAL
TERMUX_PKG_NO_STATICSPLIT
TERMUX_PKG_BUILD_IN_SRC
TERMUX_PKG_FORCE_CMAKE
TERMUX_PKG_HOSTBUILD
should not accept arbitrary values for marking them "enabled". Instead
they should accept boolean values which makes them easier to handle and
also makes their meaning clear.
build-package.sh should make decision based on variable's value but not on
whether it is set or empty.
%ci:no-build
Partial compatibility for on-device builds.
There is no guarantee that it will be possible to build all available
packages and built packages will have same reliability that cross-compiled
but should solve "self-hosting" problems as much as possible.
