Caching plugins between execution on docker images (Through gitlab ci)

[jacobdonenfeld]

Looking to cache the plugin directory between execution on gitlab's CI. Currently running tflint as a pre-commit hook, and running pre-commit on the job. Here is what I am doing, and where I am stuck:

If a previous run's job cache is available, set the tflint plugin path to the known cached plugin directory:
if [ -d ".tflint.d/plugins" ]; then export TFLINT_PLUGIN_DIR=./.tflint.d/plugins; fi

Initialize the plugins, in case they are out of date, or there wasn't a cache:
tflint --init

Slightly unrelated:

• install pre-commit hooks:
  pre-commit install-hooks
• run pre-commit, in turn, run tflint:
  pre-commit run --all-files || status=$?

The issue I am running into is on running tflint --init, the command is running into some missing directory issue:

Installing `aws` plugin...
Failed to install a plugin; Failed to download checksums.txt: open /tmp/tflint-download-temp-file-442339605: no such file or directory

Haven't been able to solve this. Would like to avoid defining the plugins in two locations or any complicated scripting to get this to work.

Thanks in advanced!

[wata727]

According to the error message it seems to fail to create the tmp file, but I'm not sure why that happens.

tflint/plugin/install.go

Line 183 in a09464b

file, err := os.CreateTemp("", "tflint-download-temp-file-*")