lua5.4 not supported?

[Shane-XB-Qian]

echoerr 'flog: warning: only Lua 5.1 and LuaJIT 2.1 are supported'

was lua5.4 (default in some distr) not supported?

[rbong]

No, only Lua 5.1 and LuaJIT 2.1 are supported.

The reasons for this are:

• LuaJIT is extremely fast (comparable to C) and drawing a graph structure with unbuffered output is expensive
• LuaJIT only supports Lua 5.1
• LuaJIT is built into Neovim

I recommend you install LuaJIT, not use Lua. Use Flog in any decently sized repo and the difference is immediately noticeable.

There are different ways to use LuaJIT. For example:

• Set :let g:flog_use_internal_lua = false to not use the version of Lua compiled with Vim (default but recently fixed)
• Set :let g:flog_lua_bin = "/path/to/my/lua" to directly set the path to the Lua executable
• The path defaults to just "luajit", you can also set it to a secondary installed version of Lua 5.1 if LuaJIT is not available on your platform
• If you no longer want warnings about the version of Lua, set :let g:flog_check_lua_version = false