use the package.patterns SLS config to copy files into the package
run a command such as sls invoke local which generates the .build folder
delete a file that would be included by the patterns
run sls deploy (or sls package)
Then the deleted file is included in the package and deployed, because it was incorrectly cached in the .build folder.
This caused some havoc when a migration from a feature branch was cached like this in .build then accidentally deployed and run on main (thankfully not on production).
I've created a repro repo to demonstrate the problem: https://github.com/tamlyn/sls-package-bug
Essentially the problem is this:
package.patternsSLS config to copy files into the packagesls invoke localwhich generates the.buildfolderpatternssls deploy(orsls package)Then the deleted file is included in the package and deployed, because it was incorrectly cached in the
.buildfolder.This caused some havoc when a migration from a feature branch was cached like this in
.buildthen accidentally deployed and run onmain(thankfully not on production).