122 lines
3 KiB
Lua
122 lines
3 KiB
Lua
---@class fugitive-ts.Hunk
|
|
---@field filename string
|
|
---@field lang string
|
|
---@field start_line integer
|
|
---@field header_context string?
|
|
---@field header_context_col integer?
|
|
---@field lines string[]
|
|
|
|
local M = {}
|
|
|
|
local debug_enabled = false
|
|
|
|
---@param enabled boolean
|
|
function M.set_debug(enabled)
|
|
debug_enabled = enabled
|
|
end
|
|
|
|
---@param msg string
|
|
---@param ... any
|
|
local function dbg(msg, ...)
|
|
if not debug_enabled then
|
|
return
|
|
end
|
|
local formatted = string.format(msg, ...)
|
|
vim.notify('[fugitive-ts] ' .. formatted, vim.log.levels.DEBUG)
|
|
end
|
|
|
|
---@param filename string
|
|
---@return string?
|
|
local function get_lang_from_filename(filename)
|
|
local ft = vim.filetype.match({ filename = filename })
|
|
if not ft then
|
|
dbg('no filetype for: %s', filename)
|
|
return nil
|
|
end
|
|
|
|
local lang = vim.treesitter.language.get_lang(ft)
|
|
if lang then
|
|
local ok = pcall(vim.treesitter.language.inspect, lang)
|
|
if ok then
|
|
return lang
|
|
end
|
|
dbg('no parser for lang: %s (ft: %s)', lang, ft)
|
|
else
|
|
dbg('no ts lang for filetype: %s', ft)
|
|
end
|
|
|
|
return nil
|
|
end
|
|
|
|
---@param bufnr integer
|
|
---@return fugitive-ts.Hunk[]
|
|
function M.parse_buffer(bufnr)
|
|
local lines = vim.api.nvim_buf_get_lines(bufnr, 0, -1, false)
|
|
---@type fugitive-ts.Hunk[]
|
|
local hunks = {}
|
|
|
|
---@type string?
|
|
local current_filename = nil
|
|
---@type string?
|
|
local current_lang = nil
|
|
---@type integer?
|
|
local hunk_start = nil
|
|
---@type string?
|
|
local hunk_header_context = nil
|
|
---@type integer?
|
|
local hunk_header_context_col = nil
|
|
---@type string[]
|
|
local hunk_lines = {}
|
|
|
|
local function flush_hunk()
|
|
if hunk_start and #hunk_lines > 0 and current_lang then
|
|
table.insert(hunks, {
|
|
filename = current_filename,
|
|
lang = current_lang,
|
|
start_line = hunk_start,
|
|
header_context = hunk_header_context,
|
|
header_context_col = hunk_header_context_col,
|
|
lines = hunk_lines,
|
|
})
|
|
end
|
|
hunk_start = nil
|
|
hunk_header_context = nil
|
|
hunk_header_context_col = nil
|
|
hunk_lines = {}
|
|
end
|
|
|
|
for i, line in ipairs(lines) do
|
|
local filename = line:match('^[MADRC%?!]%s+(.+)$')
|
|
if filename then
|
|
flush_hunk()
|
|
current_filename = filename
|
|
current_lang = get_lang_from_filename(filename)
|
|
if current_lang then
|
|
dbg('file: %s -> lang: %s', filename, current_lang)
|
|
end
|
|
elseif line:match('^@@.-@@') then
|
|
flush_hunk()
|
|
hunk_start = i
|
|
local prefix, context = line:match('^(@@.-@@%s*)(.*)')
|
|
if context and context ~= '' then
|
|
hunk_header_context = context
|
|
hunk_header_context_col = #prefix
|
|
end
|
|
elseif hunk_start then
|
|
local prefix = line:sub(1, 1)
|
|
if prefix == ' ' or prefix == '+' or prefix == '-' then
|
|
table.insert(hunk_lines, line)
|
|
elseif line == '' or line:match('^[MADRC%?!]%s+') or line:match('^%a') then
|
|
flush_hunk()
|
|
current_filename = nil
|
|
current_lang = nil
|
|
end
|
|
end
|
|
end
|
|
|
|
flush_hunk()
|
|
|
|
return hunks
|
|
end
|
|
|
|
return M
|