tree cdacdd9e4be3fb374e5de0ffa09ac32c4ecd64c5
parent 6306e5e48b02462f501c98627e8f0336a2cd3042
author Adriana Kobylak <anoo@us.ibm.com> 1658347628 -0500
committer Adriana Kobylak <anoo@us.ibm.com> 1658351341 +0000

Use relative path to append path

The path append behavior changed between std::experimental and
std::filesystem, appending an absolute path (path with a leading slash)
replaces the path instead of appending to it, therefore need to use the
relative path (path without the leading slash) when appending.

The issue was that directories were attempted to be created on "/xyz/.."
instead of "SETTINGS_PERSIST_PATH/xyz/..", causing the settings manager
to fail with:
what():  filesystem error: cannot create directories: Read-only file
system [/xyz/openbmc_project/control/host0]

Tested: Verified this error is not seeing when making redfish calls.
Also verified the generated build/settings_manager.hpp file uses either
the relative path or the xyz path doesn't have the leading slash:
  p /= path.relative_path();
  path = fs::path(SETTINGS_PERSIST_PATH) / "xyz/openbmc_project/control/host0/TPMEnable";

Change-Id: Idd456baff5f39dc4464745daef9cb884481dca45
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>