787 lines
22 KiB
Lua
787 lines
22 KiB
Lua
local Revision = require("git.revision")
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local diff = require("git.diff")
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local object = require("git.object")
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local repo = require("git.repo")
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local util = require("git.util")
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local M = {}
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M.URI_PREFIX = "gitstatus://"
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---@type ow.Git.StatusView.Placement[]
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M.PLACEMENTS = { "sidebar", "split", "current" }
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---@type ow.Git.Status.EntryKind[]
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local KINDS = { "untracked", "unstaged", "staged", "unmerged" }
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local WINDOW_WIDTH = 50
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---@param name string
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---@return integer? bufnr
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local function find_buf(name)
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for _, b in ipairs(vim.api.nvim_list_bufs()) do
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if vim.api.nvim_buf_get_name(b) == name then
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return b
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end
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end
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end
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---@alias ow.Git.StatusView.Placement "sidebar"|"split"|"current"
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---@class ow.Git.StatusView.Header
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---@field is_header true
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---@field kind ow.Git.Status.EntryKind
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---@alias ow.Git.StatusView.Item ow.Git.Status.Entry | ow.Git.StatusView.Header
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---@class ow.Git.StatusView.State
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---@field repo ow.Git.Repo
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---@field placement ow.Git.StatusView.Placement
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---@field lines table<integer, ow.Git.StatusView.Item>
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---@field win integer?
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---@field invocation_win integer?
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---@field diff_left_win integer?
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---@field diff_right_win integer?
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---@field unsubscribe fun()?
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---@field last_shown_key string?
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---@type table<integer, ow.Git.StatusView.State>
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local state = {}
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local group =
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vim.api.nvim_create_augroup("ow.git.status_win", { clear = false })
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local ns = vim.api.nvim_create_namespace("ow.git.status_win")
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---@return integer? win
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---@return integer? bufnr
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local function find_view()
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for _, win in ipairs(vim.api.nvim_tabpage_list_wins(0)) do
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local buf = vim.api.nvim_win_get_buf(win)
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if vim.bo[buf].filetype == "gitstatus" then
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return win, buf
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end
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end
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end
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---@param s ow.Git.StatusView.State
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---@return integer?
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local function win_for(s)
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local win = s.win
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if win and vim.api.nvim_win_is_valid(win) then
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return win
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end
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win = find_view()
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s.win = win
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return win
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end
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---@param entry ow.Git.Status.Entry
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---@return string line
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---@return string hl_group
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---@return integer hl_len
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local function format_entry(entry)
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local label = entry.orig and (entry.orig .. " -> " .. entry.path)
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or entry.path
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return string.format(" %s %s", entry.char, label), entry.hl, #entry.char
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end
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---@param kind ow.Git.Status.EntryKind
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---@return string
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local function display_name(kind)
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return (kind:gsub("^%l", string.upper))
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end
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---@param bufnr integer
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---@param status ow.Git.Status
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local function render(bufnr, status)
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local branch = status.branch
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local lines = { "Head: " .. (branch.head or "?") }
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if branch.upstream then
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local push = "Push: " .. branch.upstream
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if branch.ahead > 0 then
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push = push .. " +" .. branch.ahead
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end
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if branch.behind > 0 then
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push = push .. " -" .. branch.behind
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end
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table.insert(lines, push)
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end
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table.insert(lines, "")
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local meta = {}
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local marks = {}
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for _, kind in ipairs(KINDS) do
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local entries = status:by_kind(kind)
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if #entries > 0 then
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table.insert(
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lines,
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string.format("%s (%d)", display_name(kind), #entries)
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)
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meta[#lines] = { is_header = true, kind = kind }
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for _, entry in ipairs(entries) do
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local line, hl, hl_len = format_entry(entry)
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table.insert(lines, line)
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meta[#lines] = entry
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table.insert(marks, {
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row = #lines - 1,
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col = 2,
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end_col = 2 + hl_len,
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hl = hl,
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})
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end
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table.insert(lines, "")
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end
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end
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util.buf_set_lines(bufnr, 0, -1, false, lines)
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vim.api.nvim_buf_clear_namespace(bufnr, ns, 0, -1)
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for _, m in ipairs(marks) do
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vim.api.nvim_buf_set_extmark(bufnr, ns, m.row, m.col, {
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end_col = m.end_col,
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hl_group = m.hl,
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})
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end
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state[bufnr].lines = meta
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end
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---@param bufnr integer
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local function refresh(bufnr)
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local s = state[bufnr]
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if not s or not vim.api.nvim_buf_is_valid(bufnr) then
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return
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end
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s.last_shown_key = nil
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render(bufnr, s.repo.status)
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end
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---@param bufnr integer
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---@return ow.Git.StatusView.State?
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---@return ow.Git.StatusView.Item?
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local function current_entry(bufnr)
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local s = state[bufnr]
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if not s then
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return nil, nil
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end
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local lnum = vim.api.nvim_win_get_cursor(0)[1]
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return s, s.lines[lnum]
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end
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---@param r ow.Git.Repo
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---@param path string
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---@return ow.Git.Diff.Side
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local function head_pane(r, path)
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local rev = Revision.new({ base = "HEAD", path = path })
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return {
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buf = object.buf_for(r, rev),
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name = object.format_uri(rev),
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}
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end
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---@param r ow.Git.Repo
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---@param path string
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---@return ow.Git.Diff.Side
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local function worktree_pane(r, path)
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local buf = vim.fn.bufadd(vim.fs.joinpath(r.worktree, path))
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vim.fn.bufload(buf)
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return { buf = buf, name = nil }
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end
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---@param s ow.Git.StatusView.State
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---@param entry ow.Git.Status.Entry
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---@return ow.Git.Diff.Side
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local function index_pane(s, entry)
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local rev = Revision.new({ stage = 0, path = entry.path })
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return {
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buf = object.buf_for(s.repo, rev),
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name = object.format_uri(rev),
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}
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end
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---@param s ow.Git.StatusView.State
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---@param entry ow.Git.Status.Entry
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---@return ow.Git.Diff.Side?
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local function older_pane(s, entry)
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if entry.kind == "staged" then
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if entry.char == "A" then
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return nil
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end
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return head_pane(s.repo, entry.orig or entry.path)
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end
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if entry.kind == "unstaged" then
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return index_pane(s, entry)
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end
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return nil
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end
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---@param s ow.Git.StatusView.State
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---@param entry ow.Git.Status.Entry
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---@return ow.Git.Diff.Side?
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local function newer_pane(s, entry)
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if entry.kind == "staged" then
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if entry.char == "D" then
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return nil
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end
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return index_pane(s, entry)
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end
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if entry.kind == "unstaged" then
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if entry.char == "D" then
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return nil
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end
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return worktree_pane(s.repo, entry.path)
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end
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if entry.kind == "untracked" then
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return worktree_pane(s.repo, entry.path)
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end
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return nil
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end
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---@param win integer
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local function reset_diff_win(win)
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vim.api.nvim_win_call(win, function()
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vim.cmd(
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"setlocal winfixwidth< number< relativenumber< signcolumn< wrap< cursorline<"
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)
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end)
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end
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---@param s ow.Git.StatusView.State
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---@return integer?
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local function invocation_win_for(s)
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local win = s.invocation_win
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if not win or not vim.api.nvim_win_is_valid(win) then
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return nil
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end
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if win == s.win then
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return nil
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end
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if
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vim.api.nvim_win_get_tabpage(win)
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~= vim.api.nvim_get_current_tabpage()
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then
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return nil
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end
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return win
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end
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---@param s ow.Git.StatusView.State
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---@param status_win integer
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---@return integer? left
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---@return integer? right
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local function adopt_diff_wins(s, status_win)
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local left = s.diff_left_win
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local right = s.diff_right_win
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if left and not vim.api.nvim_win_is_valid(left) then
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left = nil
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end
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if right and not vim.api.nvim_win_is_valid(right) then
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right = nil
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end
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if left and right then
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return left, right
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end
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for _, win in ipairs(vim.api.nvim_tabpage_list_wins(0)) do
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if win ~= status_win then
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local role = vim.w[win].git_diff_role
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if role == "left" and not left then
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left = win
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elseif role == "right" and not right then
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right = win
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end
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end
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end
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return left, right
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end
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---@param entry ow.Git.Status.Entry
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---@return string
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local function entry_key(entry)
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return entry.kind .. "|" .. entry.path .. "|" .. (entry.orig or "")
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end
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---@param target_win integer
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---@param dir "left"|"right"
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---@return integer
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local function vsplit_at(target_win, dir)
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local win = vim.api.nvim_open_win(
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vim.api.nvim_win_get_buf(target_win),
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true,
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{ split = dir, win = target_win }
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)
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vim.cmd.clearjumps()
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return win
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end
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---@param s ow.Git.StatusView.State
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---@param status_win integer
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---@param right_win integer?
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---@return integer
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local function ensure_right_win(s, status_win, right_win)
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if right_win then
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return right_win
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end
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local target = invocation_win_for(s)
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if target then
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right_win = target
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else
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right_win = vsplit_at(status_win, "right")
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vim.api.nvim_win_set_width(status_win, WINDOW_WIDTH)
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end
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reset_diff_win(right_win)
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return right_win
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end
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---@param s ow.Git.StatusView.State
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---@param entry ow.Git.Status.Entry
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---@param focus_left boolean
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local function view_entry(s, entry, focus_left)
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local status_win = win_for(s)
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if not status_win then
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return
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end
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local left = older_pane(s, entry)
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local right = newer_pane(s, entry)
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if not left and not right then
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util.warning("no content for %s entry: %s", entry.kind, entry.path)
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return
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end
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if s.placement ~= "sidebar" then
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local pane = right or left
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---@cast pane ow.Git.Diff.Side
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diff.set_diff(status_win, false)
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vim.cmd.normal({ "m'", bang = true })
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vim.api.nvim_win_set_buf(status_win, pane.buf)
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if pane.name then
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util.set_buf_name(pane.buf, pane.name)
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end
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return
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end
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local key = entry_key(entry)
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local left_win, right_win = adopt_diff_wins(s, status_win)
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local want_pair = left and right
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if s.last_shown_key == key then
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local intact = (want_pair and left_win and right_win)
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or (not want_pair and right_win and not left_win)
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if intact then
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local target = focus_left and (left_win or right_win) or status_win
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vim.api.nvim_set_current_win(target)
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return
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end
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end
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if not want_pair then
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if left_win and vim.api.nvim_win_is_valid(left_win) then
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pcall(vim.api.nvim_win_close, left_win, false)
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left_win = nil
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s.diff_left_win = nil
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end
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right_win = ensure_right_win(s, status_win, right_win)
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s.diff_right_win = right_win
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vim.w[right_win].git_diff_role = "right"
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local side = left or right
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---@cast side ow.Git.Diff.Side
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diff.set_diff(right_win, false)
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vim.api.nvim_win_set_buf(right_win, side.buf)
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if side.name then
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util.set_buf_name(side.buf, side.name)
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end
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s.last_shown_key = key
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vim.api.nvim_set_current_win(focus_left and right_win or status_win)
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return
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end
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---@cast left ow.Git.Diff.Side
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---@cast right ow.Git.Diff.Side
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if left_win and not right_win then
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right_win = vsplit_at(left_win, "right")
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reset_diff_win(right_win)
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elseif right_win and not left_win then
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left_win = vsplit_at(right_win, "left")
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reset_diff_win(left_win)
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elseif not (left_win or right_win) then
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right_win = ensure_right_win(s, status_win, nil)
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left_win = vsplit_at(right_win, "left")
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reset_diff_win(left_win)
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local combined = vim.api.nvim_win_get_width(left_win)
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+ vim.api.nvim_win_get_width(right_win)
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vim.api.nvim_win_set_width(left_win, math.floor(combined / 2))
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end
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---@cast left_win -nil
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---@cast right_win -nil
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vim.w[left_win].git_diff_role = "left"
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vim.w[right_win].git_diff_role = "right"
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s.diff_left_win = left_win
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s.diff_right_win = right_win
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diff.update_pair(left_win, right_win, { left = left, right = right })
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s.last_shown_key = key
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vim.api.nvim_set_current_win(focus_left and left_win or status_win)
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end
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---@param focus_left boolean
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local function preview_or_open(focus_left)
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local s, item = current_entry(vim.api.nvim_get_current_buf())
|
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if not s or not item or item.is_header then
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return
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end
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---@cast item ow.Git.Status.Entry
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view_entry(s, item, focus_left)
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end
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local function action_stage()
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local s, item = current_entry(vim.api.nvim_get_current_buf())
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if not s or not item then
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return
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end
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local paths = {}
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if item.is_header then
|
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if item.kind == "staged" or item.kind == "ignored" then
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return
|
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end
|
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for _, e in ipairs(s.repo.status:by_kind(item.kind)) do
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table.insert(paths, e.path)
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end
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else
|
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---@cast item ow.Git.Status.Entry
|
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if item.kind == "staged" then
|
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return
|
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end
|
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table.insert(paths, item.path)
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end
|
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if #paths == 0 then
|
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return
|
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end
|
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local cmd = { "git", "add", "--" }
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vim.list_extend(cmd, paths)
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vim.system(
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cmd,
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{ cwd = s.repo.worktree },
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vim.schedule_wrap(function(obj)
|
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if obj.code ~= 0 then
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util.error("git add failed: %s", vim.trim(obj.stderr or ""))
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end
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end)
|
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)
|
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end
|
|
|
|
local function action_unstage()
|
|
local s, item = current_entry(vim.api.nvim_get_current_buf())
|
|
if not s or not item then
|
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return
|
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end
|
|
if item.kind ~= "staged" then
|
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return
|
|
end
|
|
local cmd = { "git", "restore", "--staged", "--" }
|
|
local entries
|
|
if item.is_header then
|
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entries = s.repo.status:by_kind("staged")
|
|
else
|
|
---@cast item ow.Git.Status.Entry
|
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entries = { item }
|
|
end
|
|
if #entries == 0 then
|
|
return
|
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end
|
|
for _, e in ipairs(entries) do
|
|
if e.orig then
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table.insert(cmd, e.orig)
|
|
end
|
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table.insert(cmd, e.path)
|
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end
|
|
vim.system(
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cmd,
|
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{ cwd = s.repo.worktree },
|
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vim.schedule_wrap(function(obj)
|
|
if obj.code ~= 0 then
|
|
util.error(
|
|
"git restore --staged failed: %s",
|
|
vim.trim(obj.stderr or "")
|
|
)
|
|
end
|
|
end)
|
|
)
|
|
end
|
|
|
|
local function action_discard()
|
|
local s, item = current_entry(vim.api.nvim_get_current_buf())
|
|
if not s or not item or item.is_header then
|
|
return
|
|
end
|
|
---@cast item ow.Git.Status.Entry
|
|
if item.kind == "staged" then
|
|
util.warning("file has staged changes, unstage first with 'u'")
|
|
return
|
|
end
|
|
|
|
local prompt, action
|
|
if item.kind == "untracked" then
|
|
local is_dir = item.path:sub(-1) == "/"
|
|
prompt = string.format(
|
|
"Delete untracked %s %s?",
|
|
is_dir and "directory" or "file",
|
|
item.path
|
|
)
|
|
action = function()
|
|
local target = vim.fs.joinpath(s.repo.worktree, item.path)
|
|
local rc = vim.fn.delete(target, is_dir and "rf" or "")
|
|
if rc ~= 0 then
|
|
util.error("failed to delete %s", item.path)
|
|
end
|
|
refresh(vim.api.nvim_get_current_buf())
|
|
end
|
|
elseif item.kind == "unstaged" then
|
|
prompt = string.format("Discard changes to %s?", item.path)
|
|
action = function()
|
|
vim.system(
|
|
{ "git", "checkout", "--", item.path },
|
|
{ cwd = s.repo.worktree },
|
|
vim.schedule_wrap(function(obj)
|
|
if obj.code ~= 0 then
|
|
util.error(
|
|
"git checkout failed: %s",
|
|
vim.trim(obj.stderr or "")
|
|
)
|
|
end
|
|
end)
|
|
)
|
|
end
|
|
else
|
|
return
|
|
end
|
|
|
|
if vim.fn.confirm(prompt, "&Yes\n&No", 2) == 1 then
|
|
action()
|
|
end
|
|
end
|
|
|
|
---@param placement ow.Git.StatusView.Placement
|
|
local function action_help(placement)
|
|
local lines = { "git status view" }
|
|
if placement == "sidebar" then
|
|
table.insert(lines, " <Tab> preview diff (keep focus)")
|
|
table.insert(lines, " <CR> open diff (focus left pane)")
|
|
else
|
|
table.insert(lines, " <CR> open file")
|
|
end
|
|
table.insert(lines, " s stage file")
|
|
table.insert(lines, " u unstage file")
|
|
table.insert(
|
|
lines,
|
|
" X discard worktree changes (untracked: delete file)"
|
|
)
|
|
table.insert(lines, " R refresh")
|
|
table.insert(lines, " g? show this help")
|
|
print(table.concat(lines, "\n"))
|
|
end
|
|
|
|
---@param bufnr integer
|
|
---@param placement ow.Git.StatusView.Placement
|
|
---@return integer win
|
|
local function place(bufnr, placement)
|
|
local split
|
|
if placement == "sidebar" then
|
|
split = "left"
|
|
elseif placement == "current" then
|
|
split = false
|
|
end
|
|
local win = util.place_buf(bufnr, split)
|
|
vim.wo[win].number = false
|
|
vim.wo[win].relativenumber = false
|
|
vim.wo[win].wrap = false
|
|
vim.wo[win].signcolumn = "no"
|
|
vim.wo[win].cursorline = true
|
|
if placement == "sidebar" then
|
|
vim.wo[win].winfixwidth = true
|
|
vim.api.nvim_win_set_width(win, WINDOW_WIDTH)
|
|
end
|
|
return win
|
|
end
|
|
|
|
---@param bufnr integer
|
|
---@param r ow.Git.Repo
|
|
---@param placement ow.Git.StatusView.Placement
|
|
---@param win integer?
|
|
---@param invocation_win integer?
|
|
local function setup_buffer(bufnr, r, placement, win, invocation_win)
|
|
state[bufnr] = {
|
|
repo = r,
|
|
placement = placement,
|
|
lines = {},
|
|
win = win,
|
|
invocation_win = invocation_win,
|
|
}
|
|
|
|
local function k(lhs, rhs, desc)
|
|
vim.keymap.set(
|
|
"n",
|
|
lhs,
|
|
rhs,
|
|
{ buffer = bufnr, silent = true, desc = desc }
|
|
)
|
|
end
|
|
k("<CR>", function()
|
|
preview_or_open(true)
|
|
end, "Open")
|
|
k("s", action_stage, "Stage file")
|
|
k("u", action_unstage, "Unstage file")
|
|
k("X", action_discard, "Discard worktree changes")
|
|
k("R", function()
|
|
r:refresh()
|
|
end, "Refresh")
|
|
k("g?", function()
|
|
action_help(state[bufnr].placement)
|
|
end, "Help")
|
|
|
|
state[bufnr].unsubscribe = r:on("refresh", function()
|
|
refresh(bufnr)
|
|
end)
|
|
vim.api.nvim_create_autocmd("BufEnter", {
|
|
buffer = bufnr,
|
|
group = group,
|
|
callback = function()
|
|
r:refresh()
|
|
end,
|
|
})
|
|
vim.api.nvim_create_autocmd({ "BufWipeout", "BufDelete" }, {
|
|
buffer = bufnr,
|
|
group = group,
|
|
callback = function()
|
|
local s = state[bufnr]
|
|
if not s then
|
|
return
|
|
end
|
|
if s.unsubscribe then
|
|
s.unsubscribe()
|
|
end
|
|
state[bufnr] = nil
|
|
end,
|
|
})
|
|
end
|
|
|
|
---@param bufnr integer
|
|
---@param placement ow.Git.StatusView.Placement
|
|
local function set_keymaps(bufnr, placement)
|
|
if placement == "sidebar" then
|
|
vim.keymap.set("n", "<Tab>", function()
|
|
preview_or_open(false)
|
|
end, { buffer = bufnr, silent = true, desc = "Preview diff" })
|
|
else
|
|
pcall(vim.keymap.del, "n", "<Tab>", { buffer = bufnr })
|
|
end
|
|
end
|
|
|
|
---@param opts? { placement: ow.Git.StatusView.Placement? }
|
|
function M.open(opts)
|
|
opts = opts or {}
|
|
local placement = opts.placement or "sidebar"
|
|
local r = repo.resolve()
|
|
if not r then
|
|
util.error("not in a git repository")
|
|
return
|
|
end
|
|
local previous_win = vim.api.nvim_get_current_win()
|
|
local buf = vim.fn.bufadd(M.URI_PREFIX .. r.worktree)
|
|
|
|
local visible = vim.fn.bufwinid(buf)
|
|
if visible ~= -1 then
|
|
vim.api.nvim_set_current_win(visible)
|
|
r:refresh()
|
|
return
|
|
end
|
|
|
|
local was_loaded = vim.api.nvim_buf_is_loaded(buf)
|
|
local win = place(buf, placement)
|
|
|
|
vim.bo[buf].bufhidden = placement == "sidebar" and "wipe" or "hide"
|
|
local s = state[buf]
|
|
if s then
|
|
s.win = win
|
|
s.invocation_win = previous_win
|
|
s.placement = placement
|
|
end
|
|
set_keymaps(buf, placement)
|
|
|
|
if placement == "sidebar" then
|
|
vim.api.nvim_set_current_win(previous_win)
|
|
end
|
|
|
|
if was_loaded then
|
|
refresh(buf)
|
|
end
|
|
r:refresh()
|
|
end
|
|
|
|
---@param buf integer
|
|
function M.read_uri(buf)
|
|
local name = vim.api.nvim_buf_get_name(buf)
|
|
local raw = name:sub(#M.URI_PREFIX + 1)
|
|
if raw == "" then
|
|
return
|
|
end
|
|
local worktree = vim.fs.abspath(raw)
|
|
local r = repo.resolve(worktree)
|
|
if not r then
|
|
util.error("not a git worktree: %s", raw)
|
|
return
|
|
end
|
|
if r.worktree ~= worktree then
|
|
util.warning("%s is not a worktree root, using %s", raw, r.worktree)
|
|
end
|
|
local canonical = M.URI_PREFIX .. r.worktree
|
|
if name ~= canonical then
|
|
local existing = find_buf(canonical)
|
|
if existing and existing ~= buf then
|
|
local win = vim.api.nvim_get_current_win()
|
|
if vim.api.nvim_win_get_buf(win) == buf then
|
|
vim.api.nvim_win_set_buf(win, existing)
|
|
end
|
|
vim.api.nvim_buf_delete(buf, { force = true })
|
|
local s = state[existing]
|
|
if s then
|
|
s.win = win
|
|
s.placement = "current"
|
|
end
|
|
refresh(existing)
|
|
r:refresh()
|
|
return
|
|
end
|
|
pcall(vim.api.nvim_buf_set_name, buf, canonical)
|
|
end
|
|
repo.bind(buf, r)
|
|
|
|
vim.bo[buf].buftype = "nofile"
|
|
vim.bo[buf].swapfile = false
|
|
vim.bo[buf].modifiable = false
|
|
vim.bo[buf].bufhidden = "hide"
|
|
vim.bo[buf].filetype = "gitstatus"
|
|
|
|
---@type integer?
|
|
local win = vim.fn.bufwinid(buf)
|
|
if win == -1 then
|
|
win = nil
|
|
end
|
|
if not state[buf] then
|
|
setup_buffer(buf, r, "current", win, nil)
|
|
else
|
|
state[buf].win = win
|
|
end
|
|
refresh(buf)
|
|
r:refresh()
|
|
end
|
|
|
|
function M.toggle()
|
|
local existing = find_view()
|
|
if existing then
|
|
vim.api.nvim_win_close(existing, false)
|
|
return
|
|
end
|
|
M.open({ placement = "sidebar" })
|
|
end
|
|
|
|
return M
|