tree 0c8e95bbbd852ac34e2de71ab0052e9a32c1e243
parent 80129fe858294d2fb10196d00d39c3cacba6a5f0
author Matt Spinler <spinler@us.ibm.com> 1671124286 -0600
committer Matt Spinler <spinler@us.ibm.com> 1674592085 +0000

PEL: Create class to read from the journal

Create a Journal class that can extract messages out of the journal and
return them as a vector of strings that look like:

"Dec 14 15:58:17 systemd[1]: systemd-tmpfiles-clean.service: Deactivated
successfully."

It can either grab the previous N entries, or the previous N entries
that match a specific SYSLOG_IDENTIFIER value.

The class follows the same strategy as the DataInterface class where a
base class pointer is passed into the PEL Manager class so that during
unit test it can be mocked.

Future commits will capture the journal into PEL UserData sections.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: I9f4bb304c4b213165049fa00de2e62f962ae67f1