Add fasttext to README.md

[ai]

Some LanguageTool guides recommend adding fasttext to system and set fasttextModel/fasttextBinary settings.

Does it really useful?

Should we add a guide? Or maybe add at least fasttext binary to Docker image?

[teapot9]

fasttext is now available in the Alpine edge branch. This means it will probably be available in the next stable release, and we will be able to directly install it with apk add fasttext.

Until then, we would have to build it from source, maybe using the alpine's APKBUILD.

The user would have to set the variables langtool_fasttextBinary=/usr/bin/fasttext and langtool_fasttextModel=/fasttext.bin, and mount the model as a volume with -v /path/to/model.bin:/fasttext.bin:ro.

[Joelius300]

Any updates on this?

[ovizii]

I'm also interested in this, any progress?

[Turab]

If anyone needs fasttext in Language tool, just build your own image and use ENV vars @teapot9 posted.

Here is the instructions;

1- Create a new image with fasttext using a dockerfile with this content:

# Change the version per your wish
FROM erikvl87/languagetool:6.5
USER root
RUN apk add fasttext
USER languagetool

If you are using Caprover, deploy this new image by just copying and pasting this content on deploy tab method 4.

2- Build the image with something like docker build -t languagetoolwithfasttext:6.5 . (Not needed if using Caprover or something similar.)

3- Add /path/to/model.bin as a volume. (Or just the path, not the file.)

4- Run the container with this new image.

5- Enter to container command prompt and download model file to /path/to/model.bin from here. (Or copy from host to container if you already have it.)

6- Stop the container and re-run it with these env vars:

langtool_fasttextBinary=/usr/bin/fasttext
langtool_fasttextModel=/path/to/model.bin

Note: You shouldn't be using these ENV vars before you have the model file in place or the container will keep restarting complaining that the file doesn't exist.

You should be having fasttext support in Language Tool now. If you want to make sure, you can check the logs if it says it loaded the model for fasttext.