lite-xl/scripts/keymap-generator/keymap-generator.lua

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#!/usr/bin/env lua
local dkjson = require "dkjson"
local function load_keymap(target, target_map, macos)
_G.MACOS = macos
package.loaded["core.keymap"] = nil
local keymap = require "core.keymap"
if target then
keymap.map = {}
require(target)
end
target_map = target_map or {}
-- keymap.reverse_map does not do this?
for key, actions in pairs(keymap.map) do
for _, action in ipairs(actions) do
target_map[action] = target_map[action] or {}
table.insert(target_map[action], key)
end
end
return target_map
end
local function normalize(map)
local result = {}
for action, keys in pairs(map) do
local uniq = {}
local r = { combination = {}, action = action }
for _, v in ipairs(keys) do
if not uniq[v] then
uniq[v] = true
r.combination[#r.combination+1] = v
end
end
result[#result+1] = r
end
table.sort(result, function(a, b) return a.action < b.action end)
return result
end
local function process_module(mod, filename)
local map = {}
load_keymap(mod, map)
load_keymap(mod, map, true)
map = normalize(map)
local f = assert(io.open(filename, "wb"))
f:write(dkjson.encode(map, { indent = true }))
f:close()
end
print("Warning: this is not guaranteed to work outside lite-xl's own keymap. Proceed with caution")
local LITE_ROOT = arg[1]
if not LITE_ROOT then
error("LITE_ROOT is not given")
end
package.path = package.path .. ";" .. LITE_ROOT .. "/?.lua;" .. LITE_ROOT .. "/?/init.lua"
-- fix core.command (because we don't want load the entire thing)
package.loaded["core.command"] = {}
if #arg > 1 then
for i = 2, #arg do
process_module(arg[i], arg[i] .. ".json")
print(string.format("Exported keymap in %q.", arg[i]))
end
else
process_module(nil, "core.keymap.json")
print("Exported the default keymap.")
end