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Manage your rails app version with this rake task
def valid? version
pattern = /^\d+\.\d+\.*\d*(\-(dev|beta|rc\d+))?$/
raise "Tried to set invalid version: #{version}".red unless version =~ pattern
end
def correct_version version
ver, flag = version.split '-'
v = ver.split '.'
(0..2).each do |n|
v[n] = v[n].to_i
end
[v.join('.'), flag].compact.join '-'
end
def read_version
begin
File.read 'VERSION'
rescue
raise "VERSION file not found or unreadable.".red
end
end
def write_version version
valid? version
begin
File.open 'VERSION', 'w' do |file|
file.write correct_version(version)
end
rescue
raise "VERSION file not found or unwritable.".red
end
end
def reset current, which
version, flag = current.split '-'
v = version.split '.'
which.each do |part|
v[part] = 0
end
[v.join('.'), flag].compact.join '-'
end
def increment current, which
version, flag = current.split '-'
v = version.split '.'
v[which] = v[which].to_i + 1
[v.join('.'), flag].compact.join '-'
end
desc "Prints the current application version"
version = read_version
task :version do
puts <<HELP
Available commands are:
-----------------------
rake version:write[version] # set custom version in the x.x.x-? format
rake version:patch # increment the patch x.x.x+1 (keeps any flags on)
rake version:minor # increment minor and reset patch x.x+1.0 (keeps any flags on)
rake version:major # increment major and reset others x+1.0.0 (keeps any flags on)
rake version:dev # set the dev flag on x.x.x-dev
rake version:beta # set the beta flag on x.x.x-beta
rake version:rc # set or increment the rc flag x.x.x-rcX
rake version:release # removes any flags from the current version
HELP
puts "Current version is: #{version.green}"
end
namespace :version do
desc "Write version explicitly by specifying version number as a parameter"
task :write, [:version] do |task, args|
write_version args[:version].strip
puts "Version explicitly written: #{read_version.green}"
end
desc "Increments the patch version"
task :patch do
new_version = increment read_version, 2
write_version new_version
puts "Application patched: #{new_version.green}"
end
desc "Increments the minor version and resets the patch"
task :minor do
incremented = increment read_version, 1
new_version = reset incremented, [2]
write_version new_version
puts "New version released: #{new_version.green}"
end
desc "Increments the major version and resets both minor and patch"
task :major do
incremented = increment read_version, 0
new_version = reset incremented, [1, 2]
write_version new_version
puts "Major application version change: #{new_version.green}. Congratulations!"
end
desc "Sets the development flag on"
task :dev do
version, flag = read_version.split '-'
new_version = [version, 'dev'].join '-'
write_version new_version
puts "Version in development: #{new_version.green}"
end
desc "Sets the beta flag on"
task :beta do
version, flag = read_version.split '-'
new_version = [version, 'beta'].join '-'
write_version new_version
puts "Version in beta: #{new_version.green}"
end
desc "Sets or increments the rc flag"
task :rc do
version, flag = read_version.split '-'
rc = /^rc(\d+)$/.match flag
if rc
new_version = [version, "rc#{rc[1].to_i+1}"].join '-'
else
new_version = [version, 'rc1'].join '-'
end
write_version new_version
puts "New version release candidate: #{new_version.green}"
end
desc "Removes any version flags"
task :release do
version, flag = read_version.split '-'
write_version version
puts "Released stable version: #{version.green}"
end
end
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