Converting translation files

From GNU Gettext Qt Linguist

1. Convert knotter_knotter-(lang).po into knotter_(lang).ts (lconvert)
2. Add knotter_(lang).ts to translations.pri
3. Update the translations (lupdate)
4. Compile knotter_(lang).ts into knotter_(lang).qm (lrelease)

Example:

lconvert -i data/translations/knotter_knotter-ru.po -o data/translations/knotter_ru.ts
lconvert -i data/translations/knotter_knotter-en_GB.po -o data/translations/knotter_en_GB.ts
lupdate knotter.pro
lrelease knotter.pro

From Qt Linguist to GNU Gettext template

1. Update the translations (lupdate)
2. Convert one of the knotter_(lang).ts to knotter.pot (lconvert)

Example:

lconvert -i data/translations/knotter_it.ts -o data/translations/knotter.pot

From Qt Linguist to GNU Gettext translation

1. Convert one of the knotter_(lang).ts to knotter_knotter-(lang).po (lconvert)

Example:

lconvert -i data/translations/knotter_it.ts -o data/translations/knotter_knotter-it.po

If you want to force an upload in Launchpad (overwrite anything present there) add the following lines to the po file header:

"X-Launchpad-Export-Date: 2013-11-11 11:12+0000\n"
"X-Generator: Launchpad (build 16820)\n"

With the date to an appropriate value.

You may have to download an already existing translation in order to do that.