confused with bottle naming and generated bottle files

[ipatch]

i'm updating the homebrew-freecad tap to use bottles hosted on github via github releases. for macos mojave i'm building these bottles locally on my personal machine. i'm running into some issues unknown to me where the bottles being generated with the below commands have two hyphens in them ie. --

---

brew install --build-bottle freecad/freecad/tbb@2020_u3
brew bottle freecad/freecad/tbb@2020_u3

gives me the below files with the below names in my current directory,

tbb@2020_u3--2020_U3_1.mojave.bottle.1.tar.gz
tbb@2020_u3--2020_U3_1.mojave.bottle.json

then when i go to install tbb@2020_u3 with brew install tbb@2020_u3 the curl cmd in the brew install process is unable to locate the bottle file tar.gz from the github releases page. it seems to be looking for a file name of

tbb@2020_u3-2020_U3_1.mojave.bottle.tar.gz

i have not a clue why the brew install process would be looking for - and not -- nor do i understand why the brew install --build-bottle and brew bottle process/commands are creating filenames with --

any and old help would be greatful 🙏

thanks
chris

[gromgit]

This is an convention from years ago (Homebrew/brew#4740), and the recommended practice still seems to be:

1. Use brew test-bot to handle build+bottle+upload, it's the supported way.
2. If you absolutely can't use brew test-bot, parse the bottle JSON for the local_filename and filename fields. The former is the name used on your filesystem, the latter for when you upload.

[ipatch]

thank you. i'll look into this tomorrow. as always your replies are welcome and insightful.