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gettext: switch to binary catalogs

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Binary catalogs are more space efficient (total translations disk usage:
14MB instead of 35MB), and easier and faster (roughly 10 times) to load:
no parsing, and less processing (no need to unescape strings).

Not much difference on the Android APK size (a ~600KB reduction), but
other TAR.GZ / ZIP distributions see a reduction of ~3.5MB.
This commit is contained in:
Benoit Pierre
2025-06-19 23:37:59 +02:00
committed by Frans de Jonge
parent b2f9530788
commit 456ce2fa36
4 changed files with 263 additions and 196 deletions
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71
spec/unit/gettext_spec.lua
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@@ -106,75 +106,44 @@ msgstr "Fuzzy translated"
describe("GetText module", function()
local GetText
local test_po_ar
local test_po_nl, test_po_ru
local test_po_none, test_po_simple
local test_po_many
setup(function()
require("commonrequire")
GetText = require("gettext")
GetText.dirname = "i18n-test"
GetText.dirname = (os.getenv("KO_HOME") or ".").."/i18n-test"
local lfs = require("libs/libkoreader-lfs")
lfs.mkdir(GetText.dirname)
lfs.mkdir(GetText.dirname.."/nl_NL")
lfs.mkdir(GetText.dirname.."/none")
lfs.mkdir(GetText.dirname.."/ar")
lfs.mkdir(GetText.dirname.."/ru")
lfs.mkdir(GetText.dirname.."/simple")
lfs.mkdir(GetText.dirname.."/many")
test_po_nl = GetText.dirname.."/nl_NL/koreader.po"
local f = io.open(test_po_nl, "w")
f:write(test_po_part1, test_plurals_nl, test_po_part2)
f:close()
local pocreate = function(lang, ...)
local dir = GetText.dirname.."/"..lang
local po = dir.."/koreader.po"
local mo = dir.."/koreader.mo"
lfs.mkdir(dir)
local f = io.open(po, "w")
f:write(...)
f:close()
local ok = os.execute(string.format("msgfmt --no-hash -o %s %s", mo, po))
assert(ok == 0)
end
pocreate("nl_NL", test_po_part1, test_plurals_nl, test_po_part2)
-- same file, just different plural for testing
test_po_none = GetText.dirname.."/none/koreader.po"
f = io.open(test_po_none, "w")
f:write(test_po_part1, test_plurals_none, test_po_part2)
f:close()
pocreate("none", test_po_part1, test_plurals_none, test_po_part2)
-- same file, just different plural for testing
test_po_ar = GetText.dirname.."/ar/koreader.po"
f = io.open(test_po_ar, "w")
f:write(test_po_part1, test_plurals_ar, test_po_part2)
f:close()
pocreate("ar", test_po_part1, test_plurals_ar, test_po_part2)
-- same file, just different plural for testing
test_po_ru = GetText.dirname.."/ru/koreader.po"
f = io.open(test_po_ru, "w")
f:write(test_po_part1, test_plurals_ru, test_po_part2)
f:close()
pocreate("ru", test_po_part1, test_plurals_ru, test_po_part2)
-- same file, just different plural for testing
test_po_simple = GetText.dirname.."/simple/koreader.po"
f = io.open(test_po_simple, "w")
f:write(test_po_part1, test_plurals_simple, test_po_part2)
f:close()
pocreate("simple", test_po_part1, test_plurals_simple, test_po_part2)
-- same file, just different plural for testing
test_po_many = GetText.dirname.."/many/koreader.po"
f = io.open(test_po_many, "w")
f:write(test_po_part1, test_plurals_many, test_po_part2)
f:close()
end)
teardown(function()
os.remove(test_po_nl)
os.remove(test_po_none)
os.remove(test_po_ar)
os.remove(test_po_ru)
os.remove(test_po_simple)
os.remove(test_po_many)
os.remove(GetText.dirname.."/nl_NL")
os.remove(GetText.dirname.."/none")
os.remove(GetText.dirname.."/ar")
os.remove(GetText.dirname.."/ru")
os.remove(GetText.dirname.."/simple")
os.remove(GetText.dirname.."/many")
os.remove(GetText.dirname)
pocreate("many", test_po_part1, test_plurals_many, test_po_part2)
end)
describe("changeLang", function()