Build and pull translation from transifex

[fffx]

Hi, I built the book to zh_CN HTML, but the language is still English in _build_zh_CN/html/index.html, what else do I need to configure for pulling translation from Transifex?

❯ docker run --rm -it -v "$(realpath .)":/repo -u "$(id -u)" a1803 ./make-lang zh_CN html

make: Entering directory '/repo'
make -C src/ -f Makefile.assets
make[1]: Entering directory '/repo/src'
make[1]: Nothing to be done for 'assets'.
make[1]: Leaving directory '/repo/src'
Running Sphinx v4.3.2
loading translations [zh_CN]... not available for built-in messages
making output directory... done
checking bibtex cache... out of date
parsing bibtex file /repo/src/Crypto101.bib... parsed 47 entries
building [mo]: targets for 0 po files that are out of date
building [html]: targets for 20 source files that are out of date
updating environment: [new config] 20 added, 0 changed, 0 removed
reading sources... [100%] zreferences
/repo/src/stream-ciphers.rst:281: WARNING: Unexpected indentation.
looking for now-outdated files... none found
pickling environment... done
checking consistency... done
preparing documents... done
writing output... [100%] zreferences
generating indices... genindex done
writing additional pages... search done
copying images... [100%] Illustrations/CTR/CTR.svg
copying static files... done
copying extra files... done
dumping search index in Chinese (code: zh)... done
dumping object inventory... done
build succeeded, 1 warning.

The HTML pages are in _build_zh_CN/html.
make: Leaving directory '/repo'
❯ open _build_zh_CN/html/index.html

By the way:
the crypto101 image is missing from docker hub, I built it by myself

[fffx]

Figured it out:

1. install Transifex client from https://github.com/transifex/cli
2. run tx migrate
3. make tx_pull
4. run with zh instead of zh_CN, which is available in src/locales

 docker run --rm -it -v "$(realpath .)":/repo -u "$(id -u)" a1803 ./make-lang zh html