Scala Library template

This is a template repository with some of the learnings from OSS Scala ecosystem applied.

Github Actions is used for CI and Releases
- On pushes and pull requests, sbt ci command is ran (more about it later)
- On tags, sbt ci-release command is ran, from sbt-ci-release
- Version is determined using sbt-dynver
Syntax formatting is verified using sbt-scalafmt
Imports are organised and checked using organize-imports Scalafix rule
- Several other Scalafix rules are enabled by default, see .scalafix.conf
Compilation flags are set using sbt-tpolecat
Explicit dependencies are checked using sbt-explicit-dependencies
Presence of Licence header is checked using sbt-header
Binary incompatibilities among dependencies are checked using sbt-missinglink
Build matrix is managed using sbt-projectmatrix

A preCI command is added - which will reformat, apply scalafix rules, create licence headers, run missinglink, etc.

This command is designed to be run before pushing, not on CI.

sbt ci command only runs checks, it never changes sources.

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