Random "I did not expect that" of the day: I had a

files

target for building a docker container to include an entire source tree:

files(sources=["**/*"], name="all_files")

... it didn't seem to include a "yarn.lock" file in that directory which was necessary for the build to proceed. I added it into the sources directly and it still didn't seem to be there. I ran with

--no-process-cleanup

and discovered that

client_secrets.json

and

yarn.lock

were both missing (ie present in the original source tree, but not in the execution environment). Adding them to the

sources

field directly didn't seem to help. I'm lightly baffled; any idea what I'm missing here?

Are those files ignored by

.gitignore

by chance?

Excellent, thanks. That's exactly the problem (I kept looking for pants ignores). I'm bemused because they're clearly in the git tree so I'm unsure what dev added them to the .gitignore, so I didn't think to look there. Brilliant (and sorry when you have those FAQs; I do check them but evidently the wrong parts of them)