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feat: minimal diff #583

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Nov 21, 2024
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1 change: 1 addition & 0 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -231,6 +231,7 @@ _See [config.lua#L9](./lua/avante/config.lua) for the full config_
auto_set_keymaps = true,
auto_apply_diff_after_generation = false,
support_paste_from_clipboard = false,
minimize_diff = true, -- Whether to remove unchanged lines when applying a code block
},
mappings = {
--- @class AvanteConflictMappings
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2 changes: 2 additions & 0 deletions lua/avante/config.lua
Original file line number Diff line number Diff line change
Expand Up @@ -120,12 +120,14 @@ M.defaults = {
--- Note that avante will safely set these keymap. See https://github.com/yetone/avante.nvim/wiki#keymaps-and-api-i-guess for more details.
---3. auto_set_highlight_group : Whether to automatically set the highlight group for the current line. Default to true.
---4. support_paste_from_clipboard : Whether to support pasting image from clipboard. This will be determined automatically based whether img-clip is available or not.
---5. minimize_diff : Whether to remove unchanged lines when applying a code block
behaviour = {
auto_suggestions = false, -- Experimental stage
auto_set_highlight_group = true,
auto_set_keymaps = true,
auto_apply_diff_after_generation = false,
support_paste_from_clipboard = false,
minimize_diff = true,
},
history = {
max_tokens = 4096,
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57 changes: 57 additions & 0 deletions lua/avante/sidebar.lua
Original file line number Diff line number Diff line change
Expand Up @@ -541,11 +541,68 @@ local function parse_codeblocks(buf)
return codeblocks
end

---@param original_lines string[]
---@param snippet AvanteCodeSnippet
---@return AvanteCodeSnippet[]
local function minimize_snippet(original_lines, snippet)
local start_line = snippet.range[1]
local end_line = snippet.range[2]
local original_snippet_lines = vim.list_slice(original_lines, start_line, end_line)
local original_snippet_content = table.concat(original_snippet_lines, "\n")
local snippet_content = snippet.content
local snippet_lines = vim.split(snippet_content, "\n")
---@diagnostic disable-next-line: missing-fields, assign-type-mismatch
local patch = vim.diff(
original_snippet_content,
snippet_content,
{ algorithm = "histogram", result_type = "indices", ctxlen = vim.o.scrolloff }
) ---@type integer[][]
---@type AvanteCodeSnippet[]
local new_snippets = {}
for _, hunk in ipairs(patch) do
local start_a, count_a, start_b, count_b = unpack(hunk)
---@type AvanteCodeSnippet
local new_snippet = {
range = { start_line + start_a - 1, start_line + start_a + count_a - 2 },
content = table.concat(vim.list_slice(snippet_lines, start_b, start_b + count_b - 1), "\n"),
lang = snippet.lang,
explanation = snippet.explanation,
start_line_in_response_buf = snippet.start_line_in_response_buf,
end_line_in_response_buf = snippet.end_line_in_response_buf,
filepath = snippet.filepath,
}
table.insert(new_snippets, new_snippet)
end
return new_snippets
end

---@param snippets_map table<string, AvanteCodeSnippet[]>
---@return table<string, AvanteCodeSnippet[]>
function Sidebar:minimize_snippets(snippets_map)
local original_lines = api.nvim_buf_get_lines(self.code.bufnr, 0, -1, false)
local results = {}

for filepath, snippets in pairs(snippets_map) do
for _, snippet in ipairs(snippets) do
local new_snippets = minimize_snippet(original_lines, snippet)
if new_snippets then
results[filepath] = results[filepath] or {}
for _, new_snippet in ipairs(new_snippets) do
table.insert(results[filepath], new_snippet)
end
end
end
end

return results
end

---@param current_cursor boolean
function Sidebar:apply(current_cursor)
local response, response_start_line = self:get_content_between_separators()
local all_snippets_map = extract_code_snippets_map(response)
all_snippets_map = ensure_snippets_no_overlap(all_snippets_map)
if Config.options.behaviour.minimize_diff then all_snippets_map = self:minimize_snippets(all_snippets_map) end
local selected_snippets_map = {}
if current_cursor then
if self.result and self.result.winid then
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