nvim-tree.lua/lua/lib/format.lua
2020-02-14 16:51:33 +01:00

120 lines
3.1 KiB
Lua

local api = vim.api
local function get_padding(depth)
local str = ""
while 0 < depth do
str = str .. " "
depth = depth - 1
end
return str
end
local function default_icons(_, isdir, open)
if isdir == true then
if open == true then return "" end
return ""
end
return ""
end
local function dev_icons(pathname, isdir, open)
if isdir == true then return default_icons(pathname, isdir, open) end
local icon = api.nvim_call_function('WebDevIconsGetFileTypeSymbol', { pathname, isdir })
if icon == "" then return "" end
return icon .. " "
end
local function get_icon_func_gen()
if api.nvim_call_function('exists', { "WebDevIconsGetFileTypeSymbol" }) == 0 then
return dev_icons
else
return default_icons
end
end
local get_icon = get_icon_func_gen()
local function format_tree(tree)
local dirs = {}
for i, node in pairs(tree) do
local padding = get_padding(node.depth)
local icon = ""
if node.icon == true then
icon = get_icon(node.path .. node.name, node.dir, node.open)
end
dirs[i] = padding .. icon .. node.name
end
return dirs
end
local HIGHLIGHT_GROUPS = {
['^.*%.md$'] = 'MarkdownFile';
['^LICENSE$'] = 'LicenseFile';
['^.*%.vim$'] = 'VimFile';
['^.*%.c$'] = 'CFile';
['^.*%.cpp$'] = 'CFile';
['^.*%.cxx$'] = 'CFile';
['^.*%.h$'] = 'CFile';
['^.*%.hpp$'] = 'CFile';
['^.*%.py$'] = 'PythonFile';
['^.*%.lua$'] = 'LuaFile';
['^.*%.rs$'] = 'RustFile';
['^.*%.sh$'] = 'ShellFile';
['^.*%.zsh$'] = 'ShellFile';
['^.*%.csh$'] = 'ShellFile';
['^.*%.rs$'] = 'RustFile';
['^.*%.js$'] = 'JavascriptFile';
['^.*%.json$'] = 'JsonFile';
['^.*%.toml$'] = 'TomlFile';
['^.*%.yml$'] = 'YamlFile';
['^.*%.gitignore$'] = 'GitignoreFile';
['^.*%.ts$'] = 'TypescriptFile';
['^.*%.jsx$'] = 'ReactFile';
['^.*%.tsx$'] = 'ReactFile';
['^.*%.html?$'] = 'HtmlFile';
['^.*%.png$'] = 'ImageFile';
['^.*%.jpe?g$'] = 'ImageFile';
}
local function highlight_line(buffer)
local function highlight(group, line, from, to)
vim.api.nvim_buf_add_highlight(buffer, -1, group, line, from, to)
end
return function(line, node)
local text_start = node.depth * 2 + 4
if node.dir then
if node.name ~= '..' then
highlight('LuaTreeFolderIcon', line, 0, text_start)
highlight('LuaTreeFolderName', line, text_start, -1)
else
highlight('LuaTreeFolderName', line, 0, -1)
end
else
for k, v in pairs(HIGHLIGHT_GROUPS) do
if string.match(node.name, k) ~= nil then
highlight('LuaTree' .. v, line, 0, text_start)
break
end
end
end
end
end
local function highlight_buffer(buffer, tree)
local highlight = highlight_line(buffer)
for i, node in pairs(tree) do
highlight(i - 1, node)
end
end
return {
format_tree = format_tree;
highlight_buffer = highlight_buffer;
}