neovim-confs/lua/utils.lua

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local M = {}
-- 1st arg as current theme, 2nd as new theme
M.change_theme = function(current_theme, new_theme)
if current_theme == nil or new_theme == nil then
print "Error: Provide current and new theme name"
return false
end
if current_theme == new_theme then
return
end
local file = vim.fn.stdpath("config") .. "/lua/chadrc.lua"
-- store in data variable
local data = assert(M.file("r", file))
local find = "theme = .?" .. current_theme .. ".?"
local replace = 'theme = "' .. new_theme .. '"'
local content = string.gsub(data, find, replace)
-- see if the find string exists in file
if content == data then
print("Error: Cannot change default theme with " .. new_theme .. ", edit " .. file .. " manually")
return false
else
assert(M.file("w", file, content))
end
end
M.clear_cmdline = function()
vim.defer_fn(
function()
vim.cmd("echo")
end,
0
)
end
-- 1st arg - r or w
-- 2nd arg - file path
-- 3rd arg - content if 1st arg is w
-- return file data on read, nothing on write
M.file = function(mode, filepath, content)
local data
local fd = assert(vim.loop.fs_open(filepath, mode, 438))
local stat = assert(vim.loop.fs_fstat(fd))
if stat.type ~= "file" then
data = false
else
if mode == "r" then
data = assert(vim.loop.fs_read(fd, stat.size, 0))
else
assert(vim.loop.fs_write(fd, content, 0))
data = true
end
end
assert(vim.loop.fs_close(fd))
return data
end
-- return a table of available themes
M.list_themes = function(return_type)
local themes = {}
-- folder where theme files are stored
local themes_folder = vim.fn.stdpath("config") .. "/lua/themes"
-- list all the contents of the folder and filter out files with .lua extension, then append to themes table
local fd = vim.loop.fs_scandir(themes_folder)
if fd then
while true do
local name, typ = vim.loop.fs_scandir_next(fd)
if name == nil then
break
end
if typ ~= "directory" and string.find(name, ".lua") then
-- return the table values as keys if specified
if return_type == "keys_as_value" then
themes[vim.fn.fnamemodify(name, ":r")] = true
else
table.insert(themes, vim.fn.fnamemodify(name, ":r"))
end
end
end
end
return themes
end
-- reload a plugin ( will try to load even if not loaded)
-- can take a string or list ( table )
-- return true or false
M.reload_plugin = function(plugins)
local status = true
local function _reload_plugin(plugin)
local loaded = package.loaded[plugin]
if loaded then
package.loaded[plugin] = nil
end
if not pcall(require, plugin) then
print("Error: Cannot load " .. plugin .. " plugin!")
status = false
end
end
if type(plugins) == "string" then
_reload_plugin(plugins)
elseif type(plugins) == "table" then
for _, plugin in ipairs(plugins) do
_reload_plugin(plugin)
end
end
return status
end
-- reload themes without restarting vim
-- if no theme name given then reload the current theme
M.reload_theme = function(theme_name)
local reload_plugin = require("utils").reload_plugin
-- if theme name is empty or nil, then reload the current theme
if (theme_name == nil or theme_name == "") then
theme_name = vim.g.nvchad_theme
end
if not pcall(require, "themes/" .. theme_name) then
print("No such theme ( " .. theme_name .. " )")
return false
end
vim.g.nvchad_theme = theme_name
-- reload the base16 theme
local ok, base16 = pcall(require, "base16")
if not ok then
print("Error: Cannot load base16 plugin!")
return false
end
base16(base16.themes(theme_name), true)
if
not reload_plugin {
"highlights",
"plugins.bufferline",
"galaxyline",
"plugins.statusline"
}
then
print "Error: Not able to reload all plugins."
return false
end
-- yes, this is very hacky, but due to new_async in
-- https://github.com/glepnir/galaxyline.nvim/blob/main/lua/galaxyline/provider.lua#L5-L36
-- it doesn't work properly and some statusline stuff dissapears
local vcs = require("galaxyline.provider_vcs")
local fileinfo = require("galaxyline.provider_fileinfo")
local buffer = require("galaxyline.provider_buffer")
local extension = require("galaxyline.provider_extensions")
local whitespace = require("galaxyline.provider_whitespace")
local lspclient = require("galaxyline.provider_lsp")
_G.galaxyline_providers = {
BufferIcon = buffer.get_buffer_type_icon,
BufferNumber = buffer.get_buffer_number,
FileTypeName = buffer.get_buffer_filetype,
GitBranch = vcs.get_git_branch,
DiffAdd = vcs.diff_add,
DiffModified = vcs.diff_modified,
DiffRemove = vcs.diff_remove,
LineColumn = fileinfo.line_column,
FileFormat = fileinfo.get_file_format,
FileEncode = fileinfo.get_file_encode,
FileSize = fileinfo.get_file_size,
FileIcon = fileinfo.get_file_icon,
FileName = fileinfo.get_current_file_name,
SFileName = fileinfo.filename_in_special_buffer,
LinePercent = fileinfo.current_line_percent,
ScrollBar = extension.scrollbar_instance,
VistaPlugin = extension.vista_nearest,
WhiteSpace = whitespace.get_item,
GetLspClient = lspclient.get_lsp_client
}
local diagnostic = require("galaxyline.provider_diagnostic")
_G.galaxyline_providers.DiagnosticError = diagnostic.get_diagnostic_error
_G.galaxyline_providers.DiagnosticWarn = diagnostic.get_diagnostic_warn
_G.galaxyline_providers.DiagnosticHint = diagnostic.get_diagnostic_hint
_G.galaxyline_providers.DiagnosticInfo = diagnostic.get_diagnostic_info
return true
end
return M