This is a tiny cmd for my Intercom application.
Install the binary
$ make installcheck if it is installed
$ customers -h
Usage:
customers [OPTIONS]
Application Options:
--office= Office location {SF, Chicago, SurryHills, Dublin, London} (default: Dublin)
-d, --max-invite-distance= The largest distance (km) to invite customer to the office (default: 100)
-i, --input= File with customer records (default: all-customers.txt)
-o, --output= Output file
--loglevel= Logging level for all subsystems {trace, debug, info, error, critical} (default: info)
Help Options:
-h, --help Show this help message
and run it
$ customers
2019-03-10 11:22:03.939 [INF] BSNS: reading customers
2019-03-10 11:22:03.941 [INF] BSNS: inviting customers
2019-03-10 11:22:03.941 [INF] BSNS: sorting customers
2019-03-10 11:22:03.941 [INF] BSNS: writing customers
ID: 4 Name: Ian Kehoe
ID: 5 Name: Nora Dempsey
ID: 6 Name: Theresa Enright
ID: 8 Name: Eoin Ahearn
ID: 11 Name: Richard Finnegan
ID: 12 Name: Christina McArdle
ID: 13 Name: Olive Ahearn
ID: 15 Name: Michael Ahearn
ID: 17 Name: Patricia Cahill
ID: 23 Name: Eoin Gallagher
ID: 24 Name: Rose Enright
ID: 26 Name: Stephen McArdle
ID: 29 Name: Oliver Ahearn
ID: 30 Name: Nick Enright
ID: 31 Name: Alan Behan
ID: 39 Name: Lisa Ahearn
Hello team)
I decided to not overthink this task, so the code is simple and
not optimized.
Optimization makes sense only if there are constraints such as:
- number of customers
- runtime limit
- memory limit
- output format
- reading input from a network
- compressed input file
- many input files
- CI/CD scripts
- Benchmarks
- Platform & architecture supporting releases