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jj.nvim/lua/jj/diff/diffview.lua

63 lines
1.5 KiB
Lua

local utils = require("jj.utils")
---@type jj.diff
local diff = require("jj.diff")
-----------------------------------------------------------------------
-- Diffvew Backend
-----------------------------------------------------------------------
--- Givewn two changes, show their diff using diffview.nvim
--- @param left string
--- @param right string
local function diff_two_changes(left, right)
-- Extract the commit id from opts.rev
local commit_id_left = utils.get_commit_id(left)
if commit_id_left == nil then
return
end
local commit_id_right = utils.get_commit_id(right)
if commit_id_right == nil then
return
end
vim.cmd(string.format("DiffviewOpen %s..%s", commit_id_right, commit_id_left))
end
-- Register the diffview backend
diff.register_backend("diffview", {
diff_current = function(opts)
if not utils.has_dependency("diffview") then
return
end
-- Extract the commit id from opts.rev
local revset = opts.rev or "@-"
local commit_id = utils.get_commit_id(revset)
if not commit_id then
return
end
vim.cmd(string.format("DiffviewOpen %s -- %%", commit_id))
vim.cmd("DiffviewToggleFiles")
end,
show_revision = function(opts)
if not utils.has_dependency("diffview") then
return
end
-- When comparing a revision we always compare it to it's parent to get the diff
local right = string.format("%s-", opts.rev)
diff_two_changes(opts.rev, right)
end,
diff_revisions = function(opts)
if not utils.has_dependency("diffview") then
return
end
diff_two_changes(opts.left, opts.right)
end,
})