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performance improvements (#116)

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closes #111
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Barrett Ruth 2026-02-12 16:59:13 -05:00 • committed by GitHub
parent 330e2bc9b8
commit 9a0b812f69
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GPG key ID: B5690EEEBB952194
10 changed files with 590 additions and 104 deletions
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21
lua/diffs/parser.lua
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@ -19,6 +19,9 @@ local M = {}
local dbg = require('diffs.log').dbg
---@type table<string, {ft: string?, lang: string?}>
local ft_lang_cache = {}
---@param filepath string
---@param n integer
---@return string[]?
@ -187,8 +190,18 @@ function M.parse_buffer(bufnr)
if filename then
flush_hunk()
current_filename = filename
current_ft = get_ft_from_filename(filename, repo_root)
current_lang = current_ft and get_lang_from_ft(current_ft) or nil
local cache_key = (repo_root or '') .. '\0' .. filename
local cached = ft_lang_cache[cache_key]
if cached then
current_ft = cached.ft
current_lang = cached.lang
else
current_ft = get_ft_from_filename(filename, repo_root)
current_lang = current_ft and get_lang_from_ft(current_ft) or nil
if current_ft or vim.fn.did_filetype() == 0 then
ft_lang_cache[cache_key] = { ft = current_ft, lang = current_lang }
end
end
if current_lang then
dbg('file: %s -> lang: %s', filename, current_lang)
elseif current_ft then
@ -254,4 +267,8 @@ function M.parse_buffer(bufnr)
return hunks
end
M._test = {
ft_lang_cache = ft_lang_cache,
}
return M