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A suite of mix tasks for managing your libs version numbers with git and hex
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lib/mix/tasks/next.ex
defmodule Mix.Tasks.Version.Next do
use Mix.Task
use FnExpr
@shortdoc "The next version of your project, provide major, minor or patch as input"
def run(args) do
args
|> calc
|> IO.puts
end
@shortdoc "Calculate the next version of your project, provide major, minor or patch as input"
def calc([]), do: calc(["patch"])
def calc([mode]) do
Mix.Project.config[:version]
|> String.split(".")
|> uptick(mode)
end
def uptick([major, minor, patch], "patch") do
{new_val, ""} = Integer.parse(patch)
"#{major}.#{minor}.#{new_val + 1}"
end
def uptick([major, minor, _patch], "minor") do
{new_val, ""} = Integer.parse(minor)
"#{major}.#{new_val + 1}.0"
end
def uptick([major, _minor, _patch], "major") do
{new_val, ""} = Integer.parse(major)
"#{new_val + 1}.0.0"
end
end