version_from_shard v1.2.2

A macro to declare the VERSION constant from the value found in shard.yml, so you don't need to write the same version number in multiple places.

Install & Use

Add the following code to your project's shard.yml under:

dependencies to use in production
- OR -
development_dependencies to use in development


version_from_shard:
  github: hugopl/version_from_shard

Readme

Version From Shard

A macro to declare the VERSION constant from the value found in shard.yml, so you don't need to write the same version number in multiple places.

Installation

Add the dependency to your shard.yml:

dependencies:
  version_from_shard:
    github: hugopl/version_from_shard

Run shards install

Usage

require "version_from_shard"

module MyAwesomeApp
  VersionFromShard.declare
end

puts MyAwesomeApp::VERSION # Should print the version value found in shard.yml, e.g. "1.0.0"

If you are developing a library is necessary to pass DIR to the declare macro, otherwise when compiling a application using your library it will show the version of the application instead the version of your library. So, on libraries do:

module MyAwesomeLib
  VersionFromShard.declare(__DIR__)
end

# Then, the App code can safely do:
puts "Awesome app v#{MyAwesomeApp::VERSION} using awesome lib v#{MyAwesomeLib::VERSION}"

When compiling a development version, i.e. not a tagged commit, the version will try to use git describe --tags output (ignoring tag prefixes) for the version string. If git isn't found or someone is compiling the project from a tarball, normal version will be used.

Example:

You have version: 1.0.0 on your shard.yml file but your master branch is 1 commit ahead of the tag named v1.0.0 that you released yesterday, in this case VersionFromShard.declare will declare a VERSION constant with the value 1.0.0+1+g2dd5299, assuming g2dd5299 is the current commit hash.