searxng/utils/lib_sxng_weblate.sh
Alexandre Flament ed66ed758d [mod] reduce memory footprint by not calling babel.Locale.parse at runtime
babel.Locale.parse loads more than 60MB in RAM.  The only purpose is to get:

    LOCALE_NAMES   - searx.data.LOCALES["LOCALE_NAMES"]
    RTL_LOCALES    - searx.data.LOCALES["RTL_LOCALES"]

This commit calls babel.Locale.parse when the translations are update from
weblate and stored in::

    searx/data/locales.json

This file can be build by::

    ./manage data.locales

By store these variables in searx.data when the translations are updated we save
round about 65MB (usually 4 worker = 260MB of RAM saved.

Suggested-by: https://github.com/searxng/searxng/discussions/2633#discussioncomment-8490494
Co-authored-by: Markus Heiser <markus.heiser@darmarit.de>
2024-02-20 10:43:20 +01:00

217 lines
7.2 KiB
Bash
Executable File

#!/usr/bin/env bash
# SPDX-License-Identifier: AGPL-3.0-or-later
weblate.help(){
cat <<EOF
weblate.:
push.translations: push translation changes from SearXNG to Weblate's counterpart
to.translations: Update 'translations' branch with last additions from Weblate.
EOF
}
TRANSLATIONS_WORKTREE="$CACHE/translations"
weblate.translations.worktree() {
# Create git worktree ${TRANSLATIONS_WORKTREE} and checkout branch
# 'translations' from Weblate's counterpart (weblate) of the SearXNG
# (origin).
#
# remote weblate https://translate.codeberg.org/git/searxng/searxng/
( set -e
if ! git remote get-url weblate 2> /dev/null; then
git remote add weblate https://translate.codeberg.org/git/searxng/searxng/
fi
if [ -d "${TRANSLATIONS_WORKTREE}" ]; then
pushd .
cd "${TRANSLATIONS_WORKTREE}"
git reset --hard HEAD
git pull origin translations
popd
else
mkdir -p "${TRANSLATIONS_WORKTREE}"
git worktree add "${TRANSLATIONS_WORKTREE}" translations
fi
)
}
weblate.to.translations() {
# Update 'translations' branch of SearXNG (origin) with last additions from
# Weblate.
# 1. Check if Weblate is locked, if not die with error message
# 2. On Weblate's counterpart (weblate), pull master and translations branch
# from SearXNG (origin).
# 3. Commit changes made in a Weblate object on Weblate's counterpart
# (weblate).
# 4. In translations worktree, merge changes of branch 'translations' from
# remote 'weblate' and push it on branch 'translations' of 'origin'
( set -e
pyenv.activate
if [ "$(wlc lock-status)" != "locked: True" ]; then
die 1 "weblate must be locked, currently: $(wlc lock-status)"
fi
# weblate: commit pending changes
wlc pull
wlc commit
# get the translations in a worktree
weblate.translations.worktree
pushd "${TRANSLATIONS_WORKTREE}"
git remote update weblate
git merge weblate/translations
git push
popd
)
dump_return $?
}
weblate.translations.commit() {
# Update 'translations' branch of SearXNG (origin) with last additions from
# Weblate. Copy the changes to the master branch, compile translations and
# create a commit in the local branch (master)
local existing_commit_hash commit_body commit_message exitcode
( set -e
pyenv.activate
# lock change on weblate
wlc lock
# get translations branch in git worktree (TRANSLATIONS_WORKTREE)
weblate.translations.worktree
existing_commit_hash=$(cd "${TRANSLATIONS_WORKTREE}"; git log -n1 --pretty=format:'%h')
# pull weblate commits
weblate.to.translations
# copy the changes to the master branch
cp -rv --preserve=mode,timestamps "${TRANSLATIONS_WORKTREE}/searx/translations" "searx"
# compile translations
build_msg BABEL 'compile translation catalogs into binary MO files'
pybabel compile --statistics \
-d "searx/translations"
# update searx/data/translation_labels.json
data.locales
# git add/commit (no push)
commit_body=$(cd "${TRANSLATIONS_WORKTREE}"; git log --pretty=format:'%h - %as - %aN <%ae>' "${existing_commit_hash}..HEAD")
commit_message=$(echo -e "[translations] update from Weblate\n\n${commit_body}")
git add searx/translations
git add searx/data/locales.json
git commit -m "${commit_message}"
)
exitcode=$?
( # make sure to always unlock weblate
set -e
pyenv.cmd wlc unlock
)
dump_return $exitcode
}
weblate.push.translations() {
# Push *translation changes* from SearXNG (origin) to Weblate's counterpart
# (weblate).
# In branch master of SearXNG (origin) check for meaningful changes in
# folder 'searx/translations', commit changes on branch 'translations' and
# at least, pull updated branches on Weblate's counterpart (weblate).
# 1. Create git worktree ${TRANSLATIONS_WORKTREE} and checkout branch
# 'translations' from remote 'weblate'.
# 2. Stop if there is no meaningful change in the 'master' branch (origin),
# compared to the 'translations' branch (weblate), otherwise ...
# 3. Update 'translations' branch of SearXNG (origin) with last additions
# from Weblate.
# 5. Notify Weblate to pull updated 'master' & 'translations' branch.
local messages_pot diff_messages_pot last_commit_hash last_commit_detail \
exitcode
messages_pot="${TRANSLATIONS_WORKTREE}/searx/translations/messages.pot"
( set -e
pyenv.activate
# get translations branch in git worktree (TRANSLATIONS_WORKTREE)
weblate.translations.worktree
# update messages.pot in the master branch
build_msg BABEL 'extract messages from source files and generate POT file'
pybabel extract -F babel.cfg \
-o "${messages_pot}" \
"searx/"
# stop if there is no meaningful change in the master branch
diff_messages_pot=$(cd "${TRANSLATIONS_WORKTREE}";\
git diff -- "searx/translations/messages.pot")
if ! echo "$diff_messages_pot" | grep -qE "[\+\-](msgid|msgstr)"; then
build_msg BABEL 'no changes detected, exiting'
return 42
fi
return 0
)
exitcode=$?
if [ "$exitcode" -eq 42 ]; then
return 0
fi
if [ "$exitcode" -gt 0 ]; then
return $exitcode
fi
(
set -e
pyenv.activate
# lock change on weblate
# weblate may add commit(s) since the call to "weblate.translations.worktree".
# this is not a problem because after this line, "weblate.to.translations"
# calls again "weblate.translations.worktree" which calls "git pull"
wlc lock
# save messages.pot in the translations branch for later
pushd "${TRANSLATIONS_WORKTREE}"
git stash push
popd
# merge weblate commits into the translations branch
weblate.to.translations
# restore messages.pot in the translations branch
pushd "${TRANSLATIONS_WORKTREE}"
git stash pop
popd
# update messages.po files in the master branch
build_msg BABEL 'update existing message catalogs from POT file'
pybabel update -N \
-i "${messages_pot}" \
-d "${TRANSLATIONS_WORKTREE}/searx/translations"
# git add/commit/push
last_commit_hash=$(git log -n1 --pretty=format:'%h')
last_commit_detail=$(git log -n1 --pretty=format:'%h - %as - %aN <%ae>' "${last_commit_hash}")
pushd "${TRANSLATIONS_WORKTREE}"
git add searx/translations
git commit \
-m "[translations] update messages.pot and messages.po files" \
-m "From ${last_commit_detail}"
git push
popd
# notify weblate to pull updated master & translations branch
wlc pull
)
exitcode=$?
( # make sure to always unlock weblate
set -e
pyenv.activate
wlc unlock
)
dump_return $exitcode
}