mirror of
https://github.com/zoriya/jj.nvim.git
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83 lines
2.3 KiB
Lua
83 lines
2.3 KiB
Lua
---@class jj.diff
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local M = {}
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local utils = require("jj.utils")
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--- Get the content of a file at a specific revision
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--- @param rev string The revision
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--- @param path string The file path
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--- @return table lines The file content
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local function get_file_content(rev, path)
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local cmd = string.format("jj file show -r %s %s", vim.fn.shellescape(rev), vim.fn.shellescape(path))
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local content = vim.fn.system(cmd)
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local success = vim.v.shell_error == 0
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if success then
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return vim.split(content, "\n", { trimempty = true })
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else
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-- File does not exist at revision
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return {}
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end
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end
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--- Open a read-only buffer for a specific revision of a file
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--- @param rev string The revision
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--- @param path string The file path
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function M.open_revision(rev, path)
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local lines = get_file_content(rev, path)
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local buf = vim.api.nvim_create_buf(false, true)
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local buf_name = string.format("jj://%s/%s", rev, path)
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vim.api.nvim_buf_set_name(buf, buf_name)
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vim.api.nvim_buf_set_lines(buf, 0, -1, false, lines)
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local ft = vim.filetype.match({ filename = path })
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if ft then
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vim.bo[buf].filetype = ft
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end
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vim.bo[buf].buftype = "nofile"
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vim.bo[buf].bufhidden = "wipe"
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vim.bo[buf].readonly = true
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vim.bo[buf].swapfile = false
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vim.bo[buf].modifiable = true
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vim.api.nvim_win_set_buf(0, buf)
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end
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---@class jj.diff.diff_opts
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---@field rev string the revision to diff against
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--- Open a diff split for a specific revision of the current file
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--- @param split_fun function Split function for the diff
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--- @param opts? jj.diff.diff_opts Any passed arguments
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function M.open_diff(split_fun, opts)
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if not utils.ensure_jj() then
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return
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end
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-- Ensure opts is a table to avoid indexing nil
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opts = opts or {}
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local rev = opts.rev or "@-"
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local path = vim.api.nvim_buf_get_name(0)
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vim.cmd.diffthis()
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split_fun({ mods = { split = "aboveleft" } })
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M.open_revision(rev, path)
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vim.cmd.diffthis()
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end
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-- Open a vertical diff split for a specific revision of the current file
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--- @param opts? jj.diff.diff_opts Any passed arguments
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function M.open_vdiff(opts)
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M.open_diff(vim.cmd.vsplit, opts)
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end
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-- Open a horizontal diff split for a specific revision of the current file
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--- @param opts? jj.diff.diff_opts Any passed arguments
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function M.open_hdiff(opts)
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M.open_diff(vim.cmd.split, opts)
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end
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return M
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