Go package and associated command line utility to generate random yet human-readable names and identifiers. Somewhat inspired by the random names that Docker gives its containers and GCP uses as project-ids.
For instance it came up with gems like this:
bougee.coorgi
young-flamingo
articulate-otter-92
ancient-mako-7ab1g3
mighty-pale-pikachu-7133
Today there exists logic to detect duplicates within a given dictionary of words. We need to add a test to spot duplicates across dictionaries too. For instance colors might show up in the color and adjective dictionaries which when used together could end up creating names with duplicate words in them.
Since we know the size of all the random strings as well as the postfix before hand, we can preallocate the builder to cut down on resizes and to make the memory allocations more deterministic.
GetForId() makes 3 allocations without prefix and 5 with. This is mostly down to initialized array appends and the call to strings.Join. Also evaluate and use strings.Builder to cut down on concatenation related allocations.
Benchmark outputs for reference:
BenchmarkGet-4 4428757 256.4 ns/op 65 B/op 3 allocs/op
BenchmarkGetWithPostfix-4 2684820 440.3 ns/op 162 B/op 5 allocs/op
The getPostfixId implementation first encodes the random number into base-10 or base-36 and then returns a substring of it. These encoded intermediary strings are 24 Bytes long in the common case. But the returned strings are typically 1-8 Bytes, leading to a large amount of fragmentation and trapped memory.
This PR fixes #6 by adding TestDictionarySanity/ShouldNotHaveDuplicateAcrossDictionaries.
In addition, we also move the existing TestDictionarySanity assertions to TestDictionarySanity/ShouldBeSortedAndNotHaveDuplicateOnEachDictionary.
Every call to GetForId() creates a new strings.Builder object. Although this allocation should happen on the stack and is not a concern as such, see if it would help to Reset() the builder instead of creating a new one each time. Might come in useful particularly when we need not return the string such as with #9
Codename an RFC1178 implementation to generate pronounceable, sometimes even memorable, "superheroe like" codenames, consisting of a random combinatio
GOtusernames Generate possible AD usernames from names like John Doe > J.Doe or JDoe Example user file: ~/programming/golang/src/gotyourusername ❯ cat
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