refactor(snap): edgex-snap-hooks related upgrade

[MonicaisHer]

This PR upgrades snap hooks to 2.4.1 with new function and refactor:

• Combine install hook and configure hook
• Use library function for copying directory
• Remove export bash command to process valid .env files
• Use log package for logging
• Use library function for autostart processing

Signed-off-by: Mengyi Wang mengyi.wang@canonical.com

If your build fails due to your commit message not passing the build checks, please review the guidelines here: https://github.com/edgexfoundry/device-rfid-llrp-go/blob/main/.github/Contributing.md

PR Checklist

Please check if your PR fulfills the following requirements:

• I am not introducing a breaking change (if you are, flag in conventional commit message with BREAKING CHANGE: describing the break)
• I am not introducing a new dependency (add notes below if you are)
• I have added unit tests for the new feature or bug fix (if not, why?)
• I have fully tested (add details below) this the new feature or bug fix (if not, why?) device-rfid-llrp test suite passed with FULL_CONFIG_TEST=true
• I have opened a PR for the related docs change (if not, why?)

Testing Instructions

1. Install and validate that all config files have been copied in right place:

tree /var/snap/edgex-device-rfid-llrp/current/config
.
└── device-rfid-llrp
    └── res
        ├── configuration.toml
        ├── devices
        ├── profiles
        │   ├── llrp.device.profile.yaml
        │   └── llrp.impinj.profile.yaml
        └── provision_watchers
            ├── impinj.provision.watcher.json
            └── llrp.provision.watcher.json

5 directories, 5 files

2. Setup and start:

sudo snap set edgex-device-rfid-llrp app-options=true
sudo snap set edgex-device-rfid-llrp config.writable-loglevel=DEBUG
sudo snap set edgex-device-rfid-llrp config.service-startupmsg="#test start up message#"
sudo snap start edgex-device-rfid-llrp

3. Check the .env file is valid now without export command:

cat /var/snap/edgex-device-rfid-llrp/current/config/device-rfid-llrp/res/device-rfid-llrp.env 

SERVICE_STARTUPMSG="#test start up message#"
WRITABLE_LOGLEVEL="DEBUG"

4. Validate env vars in .env have been exported successfully:

sudo snap logs -f edgex-device-rfid-llrp

msg="#test start up message#"
level=DEBUG msg="xxx"

5. Validate autostart via snap option works:

$ sudo snap set edgex-device-rfid-llrp autostart=true
$ snap services edgex-device-rfid-llrp
Service                                  Startup  Current  Notes
edgex-device-rfid-llrp.device-rfid-llrp  enabled  active   -

$ sudo snap set edgex-device-rfid-llrp autostart=false
$ snap services edgex-device-rfid-llrp
Service                                  Startup   Current   Notes
edgex-device-rfid-llrp.device-rfid-llrp  disabled  inactive  -

New Dependency Instructions (If applicable)

[codecov-commenter]

Codecov Report

Merging #101 (01af92c) into main (671ea72) will increase coverage by 0.03%.
The diff coverage is n/a.

❗ Current head 01af92c differs from pull request most recent head 1e887eb. Consider uploading reports for the commit 1e887eb to get more accurate results

@@            Coverage Diff             @@
##             main     #101      +/-   ##
==========================================
+ Coverage   41.12%   41.16%   +0.03%     
==========================================
  Files          21       21              
  Lines        9016     9016              
==========================================
+ Hits         3708     3711       +3     
+ Misses       4140     4138       -2     
+ Partials     1168     1167       -1     

Impacted Files	Coverage Δ
internal/llrp/reader.go	41.24% <0.00%> (+0.66%)	⬆️

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[farshidtz]

Thanks. Looks good.