[build] SONiC platform daemons depend on swsscommon library

[jleveque]

- Why I did it

To ensure proper build/installation of SONiC platform daemons (ledd, psud, syseepromd, thermalctld, xcvrd).

- How I did it

Add dependencies in appropriate makefiles

- How to verify it

- Which release branch to backport (provide reason below if selected)

• 201811
• 201911
• 202006

[jleveque]

@qiluo-msft: Check builds are failing because mock swsscommon calls appear to be unimplemented. Have you seen this before?

[qiluo-msft]

I guess it is related to this part of dynamic behavior in test

try:
    from swsscommon import swsscommon
except ImportError as e:
    from tests import mock_swsscommon as swsscommon

It is not recommended practice. It assumes swsscommon is missing in unit test environment.

---

In reply to: 727131567 [](ancestors = 727131567)

[jleveque]

I guess it is related to this part of dynamic behavior in test

try:
    from swsscommon import swsscommon
except ImportError as e:
    from tests import mock_swsscommon as swsscommon

It is not recommended practice. It assumes swsscommon is missing in unit test environment.

In reply to: 727131567 [](ancestors = 727131567)

Good find! Thanks, Qi! I believe this was recently exposed because sonic-utilities recently started depending on swsscommon, which caused to to get installed in the build environment earlier than previously.

I have opened a PR which should fix this: sonic-net/sonic-platform-daemons#112

[lguohan]

retest this please