Class: Hookup::PostCheckout
- Inherits:
-
Object
- Object
- Hookup::PostCheckout
- Defined in:
- lib/hookup.rb
Instance Attribute Summary collapse
-
#env ⇒ Object
readonly
Returns the value of attribute env.
-
#new ⇒ Object
readonly
Returns the value of attribute new.
-
#old ⇒ Object
readonly
Returns the value of attribute old.
Instance Method Summary collapse
- #bundle ⇒ Object
- #bundler? ⇒ Boolean
-
#initialize(environment, *args) ⇒ PostCheckout
constructor
A new instance of PostCheckout.
- #migrate ⇒ Object
- #partial? ⇒ Boolean
- #rake(*args) ⇒ Object
- #run ⇒ Object
- #schema_dir ⇒ Object
- #working_dir ⇒ Object
Constructor Details
#initialize(environment, *args) ⇒ PostCheckout
Returns a new instance of PostCheckout.
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# File 'lib/hookup.rb', line 89 def initialize(environment, *args) @env ||= environment.to_hash.dup require 'optparse' opts = OptionParser.new opts. = "Usage: hookup post-checkout <old> <new> <full>" opts.on('-Cdirectory', 'cd to directory') do |directory| env['HOOKUP_WORKING_DIR'] = directory end opts.on('--schema-dir=DIRECTORY', 'Path to DIRECTORY containing schema.rb and migrate/') do |directory| env['HOOKUP_SCHEMA_DIR'] = directory end opts.on('--load-schema=COMMAND', 'Run COMMAND on migration failure') do |command| env['HOOKUP_LOAD_SCHEMA'] = command end opts.parse!(args) @old = args.shift if @old == '0000000000000000000000000000000000000000' @old = EMPTY_DIR elsif @old.nil? @old = '@{-1}' end @new = args.shift || 'HEAD' @partial = (args.shift == '0') env['HOOKUP_SCHEMA_DIR'] = 'db' unless schema_dir && File.directory?(schema_dir) end |
Instance Attribute Details
#env ⇒ Object (readonly)
Returns the value of attribute env.
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# File 'lib/hookup.rb', line 75 def env @env end |
#new ⇒ Object (readonly)
Returns the value of attribute new.
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# File 'lib/hookup.rb', line 75 def new @new end |
#old ⇒ Object (readonly)
Returns the value of attribute old.
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# File 'lib/hookup.rb', line 75 def old @old end |
Instance Method Details
#bundle ⇒ Object
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# File 'lib/hookup.rb', line 129 def bundle return unless bundler? if %x{git diff --name-only #{old} #{new}} =~ /^Gemfile|\.gemspec$/ begin # If Bundler in turn spawns Git, it can get confused by $GIT_DIR git_dir = ENV.delete('GIT_DIR') %x{bundle check} unless $?.success? puts "Bundling..." Dir.chdir(working_dir) do system("bundle | grep -v '^Using ' | grep -v ' is complete'") end end ensure ENV['GIT_DIR'] = git_dir end end end |
#bundler? ⇒ Boolean
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# File 'lib/hookup.rb', line 125 def bundler? File.exist?('Gemfile') end |
#migrate ⇒ Object
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# File 'lib/hookup.rb', line 148 def migrate schemas = %W(#{schema_dir}/schema.rb #{schema_dir}/development_structure.sql).select do |schema| status = %x{git diff --name-status #{old} #{new} -- #{schema}}.chomp rake 'db:create' if status =~ /^A/ status !~ /^D/ && !status.empty? end return if schemas.empty? migrations = %x{git diff --name-status #{old} #{new} -- #{schema_dir}/migrate}.scan(/.+/).map {|l| l.split(/\t/) } begin migrations.select {|(t,f)| %w(D M).include?(t)}.reverse.each do |type, file| begin system 'git', 'checkout', old, '--', file unless rake 'db:migrate:down', "VERSION=#{File.basename(file)}" raise Error, "Failed to rollback #{File.basename(file)}" end ensure if type == 'D' system 'git', 'rm', '--force', '--quiet', '--', file else system 'git', 'checkout', new, '--', file end end end if migrations.any? {|(t,f)| %w(A M).include?(t)} rake 'db:migrate' end ensure changes = %x{git diff --name-status #{new} -- #{schemas.join(' ')}} unless changes.empty? system 'git', 'checkout', '--', *schemas puts "Schema out of sync." fallback = env['HOOKUP_LOAD_SCHEMA'] if fallback && fallback != '' puts "Trying #{fallback}..." system fallback end end end end |
#partial? ⇒ Boolean
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# File 'lib/hookup.rb', line 77 def partial? @partial end |
#rake(*args) ⇒ Object
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# File 'lib/hookup.rb', line 195 def rake(*args) Dir.chdir(working_dir) do if bundler? system 'bundle', 'exec', 'rake', *args else system 'rake', *args end end end |
#run ⇒ Object
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# File 'lib/hookup.rb', line 117 def run return if env['GIT_REFLOG_ACTION'] =~ /^(?:pull|rebase)/ unless partial? bundle migrate end end |
#schema_dir ⇒ Object
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# File 'lib/hookup.rb', line 81 def schema_dir File.(env['HOOKUP_SCHEMA_DIR'], working_dir) end |
#working_dir ⇒ Object
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# File 'lib/hookup.rb', line 85 def working_dir env['HOOKUP_WORKING_DIR'] || '.' end |