114 lines
2.7 KiB
Lua
114 lines
2.7 KiB
Lua
local repo = require("git.repo")
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local util = require("git.util")
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local M = {}
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local LOG_FORMAT = "%h %ad {%an}%d %s"
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local URI_PREFIX = "gitlog://"
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---@param worktree string
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---@param max_count integer?
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---@return string?
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local function fetch(worktree, max_count)
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local cmd = {
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"git",
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"log",
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"--graph",
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"--all",
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"--decorate",
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"--date=short",
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"--format=format:" .. LOG_FORMAT,
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}
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if max_count then
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table.insert(cmd, "--max-count=" .. max_count)
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end
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return util.exec(cmd, { cwd = worktree })
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end
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---@param buf integer
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local function populate(buf)
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local worktree = vim.b[buf].git_worktree
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local stdout = fetch(worktree, vim.b[buf].git_log_max_count)
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if not stdout then
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return
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end
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local new_lines = util.split_lines(stdout)
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local old_str = table.concat(
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vim.api.nvim_buf_get_lines(buf, 0, -1, false),
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"\n"
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) .. "\n"
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local new_str = table.concat(new_lines, "\n") .. "\n"
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local hunks = vim.text.diff(old_str, new_str, {
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result_type = "indices",
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algorithm = "histogram",
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})
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---@cast hunks [integer, integer, integer, integer][]
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if #hunks == 0 then
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return
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end
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vim.bo[buf].modifiable = true
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for i = #hunks, 1, -1 do
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local sa, ca, sb, cb = unpack(hunks[i])
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local start = ca == 0 and sa or sa - 1
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vim.api.nvim_buf_set_lines(
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buf,
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start,
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start + ca,
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false,
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vim.list_slice(new_lines, sb, sb + cb - 1)
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)
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end
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vim.bo[buf].modifiable = false
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vim.bo[buf].modified = false
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end
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---@param buf integer
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function M.read_uri(buf)
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local name = vim.api.nvim_buf_get_name(buf)
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local worktree = name:sub(#URI_PREFIX + 1)
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if worktree == "" then
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return
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end
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vim.b[buf].git_worktree = worktree
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vim.bo[buf].swapfile = false
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vim.bo[buf].bufhidden = "hide"
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vim.bo[buf].buftype = "nofile"
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if vim.bo[buf].filetype ~= "gitlog" then
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vim.bo[buf].filetype = "gitlog"
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end
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populate(buf)
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end
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---@class ow.Git.LogOpts
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---@field max_count integer?
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---@param opts ow.Git.LogOpts?
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function M.open(opts)
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opts = opts or {}
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local _, worktree = repo.resolve_cwd()
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if not worktree then
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util.warning("not in a git repository")
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return
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end
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local buf = vim.fn.bufadd(URI_PREFIX .. worktree)
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vim.b[buf].git_worktree = worktree
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vim.b[buf].git_log_max_count = opts.max_count
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local was_loaded = vim.api.nvim_buf_is_loaded(buf)
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local win = vim.fn.bufwinid(buf)
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if win == -1 then
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util.place_buf(buf, nil)
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else
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vim.api.nvim_set_current_win(win)
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end
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if was_loaded then
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populate(buf)
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end
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end
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return M
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