• I am on the latest Poetry version.
• I have searched the issues of this repo and believe that this is not a duplicate.
• If an exception occurs when executing a command, I executed it again in debug mode (-vvv option).
• OS version and name: MacOS 10.15.7
• Poetry version: 1.1.5

Issue

When using packages with the directory source type, I would expect that running poetry lock --no-update inside the package would update the poetry.lock file with changes for all directory packages being used.

The issue can be reproduced with:

poetry new lib
poetry new project

# project depends on lib (directory package)
cd project && poetry add ../lib

# lib is updated with a new dependency
cd ../lib && poetry add arrow

# we try to update the project with --no-update (we do not want to run poetry update that will update too much)
cd ../project
poetry lock --no-update

# the lock file is not updated correctly
grep arrow poetry.lock  # lock file is not updated

To my knowledge the only workaround are:

1. poetry update (which naturally updates more than we want here – i.e. unrelated dependencies)
2. poetry update <dir_package1> <dir_package2>... (cumbersome if you have a lot of directory packages – especially painful in a big mono repository)

I believe the suggested behavior makes sense for both editable and non-editable directory packages.