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mirror of https://github.com/minetest-mods/intllib.git synced 2024-11-18 00:08:24 +01:00
intllib/tools/updatetext.lua
2013-12-17 20:29:01 -05:00

142 lines
3.0 KiB
Lua

#! /usr/bin/env lua
local basedir = ""
if arg[0]:find("[/\\]") then
basedir = arg[0]:gsub("(.*[/\\]).*$", "%1"):gsub("\\", "/")
end
if basedir == "" then basedir = "./" end
-- Required by load_strings()
function string.trim(s)
return s:gsub("^%s*(.-)%s*$", "%1")
end
dofile(basedir.."/../lib.lua")
local me = arg[0]:gsub(".*[/\\](.*)$", "%1")
local function err(fmt, ...)
io.stderr:write(("%s: %s\n"):format(me, fmt:format(...)))
os.exit(1)
end
local template
local catalogs = { }
local function usage()
print([[
Usage: ]]..me..[[ [OPTIONS] TEMPLATE CATALOG...
Update a catalog with new strings from a template.
Available options:
-h,--help Show this help screen and exit.
-o,--output X Set output file (default: stdout).
Messages in the template that are not on the catalog are added to the
catalog at the end.
This tool also checks messages that are in the catalog but not in the
template, and reports such lines. It's up to the user to remove such
lines, if so desired.
]])
os.exit(0)
end
local i = 1
while i <= #arg do
local a = arg[i]
if (a == "-h") or (a == "--help") then
usage()
elseif (a == "-o") or (a == "--output") then
i = i + 1
if i > #arg then
err("missing required argument to `%s'", a)
end
elseif (a == "-c") or (a == "--comment") then
old_msg_mode = "c"
elseif (a == "-d") or (a == "--delete") then
old_msg_mode = "d"
elseif a:sub(1, 1) ~= "-" then
if not template then
template = a
else
table.insert(catalogs, a)
end
else
err("unrecognized option `%s'", a)
end
i = i + 1
end
if not template then
err("no template specified")
elseif #catalogs == 0 then
err("no catalogs specified")
end
local f, e = io.open(template, "r")
if not f then
err("error opening template: %s", e)
end
local function printf(fmt, ...)
outfile:write(fmt:format(...))
end
local escapes = { ["\n"] = "\\n", ["="] = "\\=", ["\\"] = "\\\\", }
local function escape(s)
return s:gsub("[\\\n=]", escapes)
end
if output then
local e
outfile, e = io.open(output, "w")
if not outfile then
err("error opening file for writing: %s", e)
end
end
local function printf(fmt, ...)
io.stdout:write(fmt:format(...))
end
local template_msgs = intllib.load_strings(template)
for _, file in ipairs(catalogs) do
print("Processing: "..file)
local catalog_msgs = intllib.load_strings(file)
local dirty_lines = { }
if catalog_msgs then
-- Add new entries from template.
for k in pairs(template_msgs) do
if not catalog_msgs[k] then
print("NEW: "..k)
table.insert(dirty_lines, escape(k).." =")
end
end
-- Check for old messages.
for k, v in pairs(catalog_msgs) do
if not template_msgs[k] then
print("OLD: "..k)
end
end
if #dirty_lines > 0 then
local outf, e = io.open(file, "a+")
if outf then
outf:write("\n")
for _, line in ipairs(dirty_lines) do
outf:write(line)
outf:write("\n")
end
outf:close()
else
io.stderr:write(("%s: WARNING: cannot write: %s\n"):format(me, e))
end
end
else
io.stderr:write(("%s: WARNING: could not load catalog\n"):format(me))
end
end