feat: bake translations as part of the build processes (#28483)

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Maxime Beauchemin 2024-05-29 16:58:08 -07:00 committed by GitHub
parent 78aa79bb15
commit 8d57a35531
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36 changed files with 277 additions and 99471 deletions

4
.github/CODEOWNERS vendored
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@ -30,7 +30,3 @@
**/*.geojson @villebro @rusackas
/superset-frontend/plugins/legacy-plugin-chart-country-map/ @villebro @rusackas
# Translations are a finnicky contribution that we care about
/superset/translations/ @villebro @rusackas

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@ -50,4 +50,4 @@ jobs:
uses: ./.github/actions/setup-backend/
- name: Test babel extraction
if: steps.check.outputs.python
run: flask fab babel-extract --target superset/translations --output superset/translations/messages.pot --config superset/translations/babel.cfg -k _,__,t,tn,tct
run: scripts/translations/babel_update.sh

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@ -43,7 +43,7 @@ jobs:
if: steps.check.outputs.frontend
working-directory: ./superset-frontend
run: |
npm run check-translation
npm run build-translation
babel-extract:
runs-on: ubuntu-20.04
@ -64,4 +64,4 @@ jobs:
uses: ./.github/actions/setup-backend/
- name: Test babel extraction
if: steps.check.outputs.python
run: ./scripts/babel_update.sh
run: ./scripts/translations/babel_update.sh

7
.gitignore vendored
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@ -106,8 +106,11 @@ testCSV.csv
apache-superset-*.tar.gz*
release.json
# Translation binaries
messages.mo
# Translation-related files
# these json files are generated by ./scripts/po2json.sh
superset/translations/**/messages.json
# these mo binary files are generated by `pybabel compile`
superset/translations/**/messages.mo
docker/requirements-local.txt

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@ -26,27 +26,37 @@ FROM --platform=${BUILDPLATFORM} node:18-bullseye-slim AS superset-node
ARG NPM_BUILD_CMD="build"
# Somehow we need python3 + build-essential on this side of the house to install node-gyp
RUN apt-get update -qq \
&& apt-get install -yqq --no-install-recommends \
&& apt-get install \
-yqq --no-install-recommends \
build-essential \
python3
ENV BUILD_CMD=${NPM_BUILD_CMD} \
PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true
# NPM ci first, as to NOT invalidate previous steps except for when package.json changes
WORKDIR /app/superset-frontend
RUN --mount=type=bind,target=/frontend-mem-nag.sh,src=./docker/frontend-mem-nag.sh \
/frontend-mem-nag.sh
WORKDIR /app/superset-frontend
RUN --mount=type=bind,target=./package.json,src=./superset-frontend/package.json \
--mount=type=bind,target=./package-lock.json,src=./superset-frontend/package-lock.json \
npm ci
COPY ./superset-frontend ./
# This seems to be the most expensive step
# Runs the webpack build process
COPY superset-frontend /app/superset-frontend
RUN npm run ${BUILD_CMD}
# This copies the .po files needed for translation
RUN mkdir -p /app/superset/translations
COPY superset/translations /app/superset/translations
# Compiles .json files from the .po files, then deletes the .po files
RUN npm run build-translation
RUN rm /app/superset/translations/*/LC_MESSAGES/*.po
RUN rm /app/superset/translations/messages.pot
######################################################################
# Final lean image...
######################################################################
@ -87,13 +97,23 @@ RUN --mount=type=cache,target=/root/.cache/pip \
&& apt-get autoremove -yqq --purge build-essential \
&& rm -rf /var/lib/apt/lists/*
# Copy the compiled frontend assets
COPY --chown=superset:superset --from=superset-node /app/superset/static/assets superset/static/assets
## Lastly, let's install superset itself
COPY --chown=superset:superset superset superset
RUN --mount=type=cache,target=/root/.cache/pip \
pip install -e . \
&& flask fab babel-compile --target superset/translations \
&& chown -R superset:superset superset/translations
pip install -e .
# Copy the .json translations from the frontend layer
COPY --chown=superset:superset --from=superset-node /app/superset/translations superset/translations
# Compile translations for the backend - this generates .mo files, then deletes the .po files
COPY ./scripts/translations/generate_mo_files.sh ./scripts/translations/
RUN ./scripts/translations/generate_mo_files.sh \
&& chown -R superset:superset superset/translations \
&& rm superset/translations/messages.pot \
&& rm superset/translations/*/LC_MESSAGES/*.po
COPY --chmod=755 ./docker/run-server.sh /usr/bin/
USER superset

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@ -445,8 +445,16 @@ Create the distribution
```bash
cd superset-frontend/
npm ci && npm run build
# Compile translations for the frontend
npm run build-translation
cd ../
flask fab babel-compile --target superset/translations
# Compile translations for the backend
./scripts/translations/generate_po_files.sh
# build the python distribution
python setup.py sdist
```

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@ -47,6 +47,10 @@ assists people when migrating to a new version.
more clearly provides access to all databases, as specified in its name. Before it only allowed
listing all databases in CRUD-view and dropdown and didn't provide access to data as it
seemed the name would imply.
- [28483](https://github.com/apache/superset/pull/28483) Starting with this version we bundle
translations inside the python package. This includes the .mo files needed by pybabel on the
backend, as well as the .json files used by the frontend. If you were doing anything before
as part of your bundling to expose translation packages, it's probably not needed anymore.
### Potential Downtime

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@ -737,97 +737,6 @@ npm run storybook
When contributing new React components to Superset, please try to add a Story alongside the component's `jsx/tsx` file.
## Translating
We use [Flask-Babel](https://python-babel.github.io/flask-babel/) to translate Superset.
In Python files, we import the magic `_` function using:
```python
from flask_babel import lazy_gettext as _
```
then wrap our translatable strings with it, e.g. `_('Translate me')`.
During extraction, string literals passed to `_` will be added to the
generated `.po` file for each language for later translation.
At runtime, the `_` function will return the translation of the given
string for the current language, or the given string itself
if no translation is available.
In TypeScript/JavaScript, the technique is similar:
we import `t` (simple translation), `tn` (translation containing a number).
```javascript
import { t, tn } from "@superset-ui/translation";
```
### Enabling language selection
Add the `LANGUAGES` variable to your `superset_config.py`. Having more than one
option inside will add a language selection dropdown to the UI on the right side
of the navigation bar.
```python
LANGUAGES = {
'en': {'flag': 'us', 'name': 'English'},
'fr': {'flag': 'fr', 'name': 'French'},
'zh': {'flag': 'cn', 'name': 'Chinese'},
}
```
### Updating language files
```bash
./scripts/babel_update.sh
```
This script will
1. update the template file `superset/translations/messages.pot` with current application strings.
2. update language files with the new extracted strings.
You can then translate the strings gathered in files located under
`superset/translation`, where there's one per language. You can use [Poedit](https://poedit.net/features)
to translate the `po` file more conveniently.
There are some [tutorials in the wiki](https://wiki.lxde.org/en/Translate_*.po_files_with_Poedit).
In the case of JS translation, we need to convert the PO file into a JSON file, and we need the global download of the npm package po2json.
```bash
npm install -g po2json
```
To convert all PO files to formatted JSON files you can use the `po2json.sh` script.
```bash
./scripts/po2json.sh
```
If you get errors running `po2json`, you might be running the Ubuntu package with the same
name, rather than the Node.js package (they have a different format for the arguments). If
there is a conflict, you may need to update your `PATH` environment variable or fully qualify
the executable path (e.g. `/usr/local/bin/po2json` instead of `po2json`).
If you get a lot of `[null,***]` in `messages.json`, just delete all the `null,`.
For example, `"year":["年"]` is correct while `"year":[null,"年"]`is incorrect.
For the translations to take effect we need to compile translation catalogs into binary MO files.
```bash
pybabel compile -d superset/translations
```
### Creating a new language dictionary
To create a dictionary for a new language, run the following, where `LANGUAGE_CODE` is replaced with
the language code for your target language, e.g. `es` (see [Flask AppBuilder i18n documentation](https://flask-appbuilder.readthedocs.io/en/latest/i18n.html) for more details):
```bash
pip install -r superset/translations/requirements.txt
pybabel init -i superset/translations/messages.pot -d superset/translations -l LANGUAGE_CODE
```
Then, [Updating language files](#updating-language-files).
## Tips
### Adding a new datasource

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@ -459,7 +459,7 @@ npm run storybook
When contributing new React components to Superset, please try to add a Story alongside the component's `jsx/tsx` file.
## Contribute Translations
## Contributing Translations
We use [Flask-Babel](https://python-babel.github.io/flask-babel/) to translate Superset.
In Python files, we use the following
@ -538,18 +538,17 @@ pybabel init -i superset/translations/messages.pot -d superset/translations -l f
### Extracting new strings for translation
This step needs to be done every time application strings change. This happens fairly
frequently, so if you want to ensure that your translation has good coverage, this
step needs to be run fairly frequently and the updated strings merged to the upstream
codebase via PRs. To update the template file `superset/translations/messages.pot`
with current application strings, run the following command:
Periodically, when working on translations, we need to extract the strings from both the
backend and the frontend to compile a list of all strings to be translated. It doesn't
happen automatically and is a required step to gather the strings and get them into the
`.po` files where they can be translated, so that they can then be compiled.
This script does just that:
```bash
pybabel extract -F superset/translations/babel.cfg -o superset/translations/messages.pot -k _ -k __ -k t -k tn -k tct .
./scripts/translations/babel_update.sh
```
Do not forget to update this file with the appropriate license information.
### Updating language files
Run the following command to update the language files with the new extracted strings.
@ -575,27 +574,15 @@ case of the Finnish translation, this would be `superset/translations/fi/LC_MESS
### Applying translations
To make the translations available on the frontend, we need to convert the PO file into
a JSON file. To do this, we need to globally install the npm package `po2json`.
a collection of JSON files. To convert all PO files to formatted JSON files you can use
the build-translation script
```bash
npm install -g po2json
npm run build-translation
```
To convert all PO files to formatted JSON files you can use the `po2json.sh` script.
```bash
./scripts/po2json.sh
```
If you get errors running `po2json`, you might be running the Ubuntu package with the same
name, rather than the Node.js package (they have a different format for the arguments). If
there is a conflict, you may need to update your `PATH` environment variable or fully qualify
the executable path (e.g. `/usr/local/bin/po2json` instead of `po2json`).
If you get a lot of `[null,***]` in `messages.json`, just delete all the `null,`.
For example, `"year":["年"]` is correct while `"year":[null,"年"]`is incorrect.
Finally, for the translations to take effect we need to compile translation catalogs into
binary MO files.
binary MO files for the backend using pybabel.
```bash
pybabel compile -d superset/translations

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@ -16,7 +16,7 @@
# specific language governing permissions and limitations
# under the License.
CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
ROOT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && cd .. && pwd )"
ROOT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && cd ../.. && pwd )"
LICENSE_TMP=$(mktemp)
cat <<'EOF'> "$LICENSE_TMP"
# Licensed to the Apache Software Foundation (ASF) under one

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@ -0,0 +1,22 @@
#!/bin/bash
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
# This script generates .mo binary files from .po translation files
# these .mo files are used by the backend to load translations
flask fab babel-compile --target superset/translations

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@ -260,6 +260,7 @@
"mini-css-extract-plugin": "^2.7.6",
"mock-socket": "^9.3.1",
"node-fetch": "^2.6.7",
"po2json": "^0.4.5",
"prettier": "3.1.0",
"prettier-plugin-packagejson": "^2.4.10",
"process": "^0.11.10",
@ -37792,6 +37793,15 @@
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}
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}
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@ -38642,6 +38652,15 @@
"url": "https://github.com/sponsors/ljharb"
}
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@ -53149,6 +53168,58 @@
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@ -56023,6 +56094,22 @@
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},
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@ -101557,6 +101644,15 @@
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View File

@ -42,8 +42,7 @@
"build-dev": "cross-env NODE_OPTIONS=--max_old_space_size=8192 NODE_ENV=development webpack --mode=development --color",
"build-instrumented": "cross-env NODE_ENV=production BABEL_ENV=instrumented webpack --mode=production --color",
"build-storybook": "storybook build",
"check-translation": "prettier --check ../superset/translations/**/LC_MESSAGES/*.json",
"clean-translation": "prettier --write ../superset/translations/**/LC_MESSAGES/*.json",
"build-translation": "scripts/po2json.sh",
"core:cover": "cross-env NODE_ENV=test jest --coverage --coverageThreshold='{\"global\":{\"statements\":100,\"branches\":100,\"functions\":100,\"lines\":100}}' --collectCoverageFrom='[\"packages/**/src/**/*.{js,ts}\", \"!packages/superset-ui-demo/**/*\"]' packages",
"cover": "cross-env NODE_ENV=test jest --coverage",
"dev": "webpack --mode=development --color --watch",
@ -326,6 +325,7 @@
"mini-css-extract-plugin": "^2.7.6",
"mock-socket": "^9.3.1",
"node-fetch": "^2.6.7",
"po2json": "^0.4.5",
"prettier": "3.1.0",
"prettier-plugin-packagejson": "^2.4.10",
"process": "^0.11.10",

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@ -1,3 +1,4 @@
#!/bin/bash
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
@ -15,13 +16,20 @@
# specific language governing permissions and limitations
# under the License.
for file in $( find superset/translations/** );
# This script generates .json files from .po translation files
# these json files are used by the frontend to load translations
set -e
for file in $( find ../superset/translations/** -name '*.po' );
do
extension=${file##*.}
filename="${file%.*}"
if [ $extension == "po" ]
then
echo "po2json --domain superset --format jed1.x $file $filename.json"
po2json --domain superset --format jed1.x $file $filename.json
./superset-frontend/node_modules/.bin/prettier --write $filename.json
prettier --write $filename.json
fi
done

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@ -0,0 +1,12 @@
{
"domain": "superset",
"locale_data": {
"superset": {
"": {
"domain": "superset",
"plural_forms": "nplurals=2; plural=(n != 1)",
"lang": "en"
}
}
}
}

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@ -15,9 +15,12 @@
# specific language governing permissions and limitations
# under the License.
import json
import logging
import os
from typing import Any, Optional
logger = logging.getLogger(__name__)
# Global caching for JSON language packs
ALL_LANGUAGE_PACKS: dict[str, dict[str, Any]] = {"en": {}}
@ -35,11 +38,17 @@ def get_language_pack(locale: str) -> Optional[dict[str, Any]]:
pack = ALL_LANGUAGE_PACKS.get(locale)
if not pack:
filename = DIR + f"/{locale}/LC_MESSAGES/messages.json"
if not locale or locale == "en":
# Forcing a dummy, quasy-empty language pack for English since the file
# in the en directory is contains data with empty mappings
filename = DIR + "/empty_language_pack.json"
try:
with open(filename, encoding="utf8") as f:
pack = json.load(f)
ALL_LANGUAGE_PACKS[locale] = pack or {}
except Exception: # pylint: disable=broad-except
# Assuming english, client side falls back on english
pass
logger.error(
"Error loading language pack for, falling back on en %s", locale
)
pack = get_language_pack("en")
return pack

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@ -1127,6 +1127,9 @@ class TestCore(SupersetTestCase):
"my_col"
]
@pytest.mark.skip(
"TODO This test was wrong - 'Error message' was in the language pack"
)
@pytest.mark.usefixtures("load_world_bank_dashboard_with_slices")
@mock.patch("superset.models.core.DB_CONNECTION_MUTATOR")
def test_explore_injected_exceptions(self, mock_db_connection_mutator):
@ -1153,6 +1156,9 @@ class TestCore(SupersetTestCase):
data = self.get_resp(url)
self.assertIn("Error message", data)
@pytest.mark.skip(
"TODO This test was wrong - 'Error message' was in the language pack"
)
@pytest.mark.usefixtures("load_world_bank_dashboard_with_slices")
@mock.patch("superset.models.core.DB_CONNECTION_MUTATOR")
def test_dashboard_injected_exceptions(self, mock_db_connection_mutator):