mirror of
https://github.com/neovim/neovim.git
synced 2025-10-06 18:06:30 +00:00
94 lines
2.4 KiB
Lua
94 lines
2.4 KiB
Lua
if arg[1] == '--help' then
|
|
print('Usage:')
|
|
print(' '..arg[0]..' [-c] target source varname [source varname]...')
|
|
print('')
|
|
print('Generates C file with big uint8_t blob.')
|
|
print('Blob will be stored in a static const array named varname.')
|
|
os.exit()
|
|
end
|
|
|
|
-- Recognized options:
|
|
-- -c compile Lua bytecode
|
|
local options = {}
|
|
|
|
while true do
|
|
local opt = string.match(arg[1], "^-(%w)")
|
|
if not opt then
|
|
break
|
|
end
|
|
|
|
options[opt] = true
|
|
table.remove(arg, 1)
|
|
end
|
|
|
|
assert(#arg >= 3 and (#arg - 1) % 2 == 0)
|
|
|
|
local target_file = arg[1] or error('Need a target file')
|
|
local target = io.open(target_file, 'w')
|
|
|
|
target:write('#include <stdint.h>\n\n')
|
|
|
|
local index_items = {}
|
|
|
|
local warn_on_missing_compiler = true
|
|
local modnames = {}
|
|
for argi = 2, #arg, 2 do
|
|
local source_file = arg[argi]
|
|
local modname = arg[argi + 1]
|
|
if modnames[modname] then
|
|
error(string.format("modname %q is already specified for file %q", modname, modnames[modname]))
|
|
end
|
|
modnames[modname] = source_file
|
|
|
|
local varname = string.gsub(modname,'%.','_dot_').."_module"
|
|
target:write(('static const uint8_t %s[] = {\n'):format(varname))
|
|
|
|
local output
|
|
if options.c then
|
|
local luac = os.getenv("LUAC_PRG")
|
|
if luac and luac ~= "" then
|
|
output = io.popen(luac:format(source_file), "r"):read("*a")
|
|
elseif warn_on_missing_compiler then
|
|
print("LUAC_PRG is missing, embedding raw source")
|
|
warn_on_missing_compiler = false
|
|
end
|
|
end
|
|
|
|
if not output then
|
|
local source = io.open(source_file, "r")
|
|
or error(string.format("source_file %q doesn't exist", source_file))
|
|
output = source:read("*a")
|
|
source:close()
|
|
end
|
|
|
|
local num_bytes = 0
|
|
local MAX_NUM_BYTES = 15 -- 78 / 5: maximum number of bytes on one line
|
|
target:write(' ')
|
|
|
|
local increase_num_bytes
|
|
increase_num_bytes = function()
|
|
num_bytes = num_bytes + 1
|
|
if num_bytes == MAX_NUM_BYTES then
|
|
num_bytes = 0
|
|
target:write('\n ')
|
|
end
|
|
end
|
|
|
|
for i = 1, string.len(output) do
|
|
local byte = output:byte(i)
|
|
target:write(string.format(' %3u,', byte))
|
|
increase_num_bytes()
|
|
end
|
|
|
|
target:write(' 0};\n')
|
|
if modname ~= "_" then
|
|
table.insert(index_items, ' { "'..modname..'", '..varname..', sizeof '..varname..' },\n\n')
|
|
end
|
|
end
|
|
|
|
target:write('static ModuleDef builtin_modules[] = {\n')
|
|
target:write(table.concat(index_items))
|
|
target:write('};\n')
|
|
|
|
target:close()
|