Hot-reload local theme

[auribuo]

Hi, I'm working on a plugin which generates a theme on the fly and generates a local theme .lua file.

The only issue I'm having is base46 not picking up the changed theme file and me needing to restart nvim for base46 to apply the changes.

Is it possible to reload on the fly? I tried calling require('base46').load_all_highlights() but the theme does not change.

[siduck]

change the theme in chadrc too

[auribuo]

I have it set both in my chadrc.lua in config.base46.theme = 'themename' and I'm calling require('nvconfig').base46.theme = 'themename' before and after calling load_all_highlights() (I wasn't sure when to call it in the function). I'm also making sure the callback in my plugin actually executes and it does so the functions should be executed.

[siduck]

have you tried

require("nvchad.utils").reload()

[auribuo]

Tried that too. Still seems not to work. Is there a return value or other way to check if the function was successful?

[siduck]

weird, how can i test this without testing your program?

btw check https://github.com/NvChad/pywal

[auribuo]

Well the plugin as I use it is on Github. You'll need two scheme files dark and light and a file which is the scheme file you swap e.g, ~/scheme.json.

You can load the plugin with lazy like this:

{
        "auribuo/base46-caelestia-integration",
        lazy = false,
        config = function()
            require('base46-caelestia-integration').setup {
                path = "~/scheme.json"
            }
        end
    },

Then you can just swap in the two themes by cp them into the scheme.json file, the plugin watches for changes and should reload the theme.

I honestly don't know a better way of testing this use case.

If this is too much of a bother to set up the main part of the issue is here.

My chadrc.lua looks like this:

---@type ChadrcConfig
local M = {}

M.base46 = {
    theme = "caelestia",
    transparency = true,
}

M.nvdash = {
    load_on_startup = true
}

M.ui = {
    statusline = {
        order = { "mode", "filetype", "file", "git", "%=", "lsp_msg", "%=", "diagnostics", "lsp", "cwd", "cursor", "pos" },
        modules = {
            pos = function()
                return "[%l/%L:%c]"
            end,
            filetype = function()
                return "%#St_file# %y |%#St_file_sep#"
            end,
        }
    }
}

return M

[auribuo]

I have now tested a bit and made some progress. If I start a fresh instance of nvim and switch the theme the theme actually reloads as expected. Only if I switch back the theme is not reloaded properly. Could it be some cache still having the old theme or something similar?

Edit: I have come to the conclusion that it works once, then on subsequent calls it does not anymore.

[auribuo]

I fixed the issue by placing the generated theme file into vim.fn.stdpath("data") .. "/lazy/base46/lua/base46/themes/" instead of the config folder and now it works!

[siduck]

I fixed the issue by placing the generated theme file into vim.fn.stdpath("data") .. "/lazy/base46/lua/base46/themes/" instead of the config folder and now it works!

this is bad ⚠️ cuz it'll get wiped off on base46 update, if you can wait then i'll help you on sunday, join the nvchad discord server

[auribuo]

Ok, good to know. At least it might help narrow down the issue.
I don't mind waiting, joined the discord

[auribuo]

I fixed the issue by placing the generated theme file into vim.fn.stdpath("data") .. "/lazy/base46/lua/base46/themes/" instead of the config folder and now it works!

this is bad ⚠️ cuz it'll get wiped off on base46 update, if you can wait then i'll help you on sunday, join the nvchad discord server

Is it an issue though if I regenerate the theme each time nvim starts? Because in that case shouldn't a wipe due to an update not matter?

[siduck]

ping me on discord, i'll help