Problem: LPeg is hosted on a single unreliable external hoster, forcing
is to mirror it in neovim/deps, which adds maintenance friction. Also,
we have already vendored the Lua `re.lua` module.
Solution: Vendor all of LPeg v1.1.0; as development is not very active
anymore, this should not add much overhead (and allow us to simplify in
particular the Zig build scripts).
Note: LPeg defines a `luaL_newlib` macro for Lua 5.1, which conflicts
with LuaJIT's extension. This requires inlining the macro defined in
`lptypes.h` and used in `lptree.c`; see README.md for the patch.
Problem:
build.zig always downloads dependencies and statically links them,
which is frowned upon by distro packagers.
Solution:
Add option to use system libraries.
This is matters for cross-compiling where we might not
be able to run the "nvim" binary on the host.
Instead reimplement the helptags extractor as a small
lua script, which we can run on the host using the nlua0
helper already used for other generator scripts.
NEW BUILD SYSTEM!
This is a MVP implementation which supports building the "nvim" binary,
including cross-compilation for some targets.
As an example, you can build a aarch64-macos binary from
an x86-64-linux-gnu host, or vice versa
Add CI target for build.zig currently for functionaltests on linux
x86_64 only
Follow up items:
- praxis for version and dependency bumping
- windows 💀
- full integration of libintl and gettext (or a desicion not to)
- update help and API metadata files
- installation into a $PREFIX
- more tests and linters
