Class: XMigra::BranchUpgrade

Inherits:
Object
  • Object
show all
Defined in:
lib/xmigra/branch_upgrade.rb

Constant Summary collapse

TARGET_BRANCH = 
"resulting branch"
MIGRATION_COMPLETED = 
"completes migration to"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path) ⇒ BranchUpgrade

Returns a new instance of BranchUpgrade.



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# File 'lib/xmigra/branch_upgrade.rb', line 10

def initialize(path)
  @file_path = path
  @warnings = []
  
  verinc_info = {}
  if path.exist?
    @found = true
    begin
      verinc_info = YAML.load_file(path)
    rescue Error => e
      XMigra.log_error(e)
      warning "Failed to load branch upgrade migration (#{e.class}).\n  #{e}"
      verinc_info = {}
    end
  end
  
  @base_migration = verinc_info[Migration::FOLLOWS]
  @target_branch = (XMigra.secure_digest(verinc_info[TARGET_BRANCH]) if verinc_info.has_key? TARGET_BRANCH)
  @migration_completed = verinc_info[MIGRATION_COMPLETED]
  @sql = verinc_info['sql']
end

Instance Attribute Details

#base_migration ⇒ Object (readonly)

Returns the value of attribute base_migration.



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# File 'lib/xmigra/branch_upgrade.rb', line 32

def base_migration
  @base_migration
end

#file_path ⇒ Object (readonly)

Returns the value of attribute file_path.



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# File 'lib/xmigra/branch_upgrade.rb', line 32

def file_path
  @file_path
end

#migration_completed ⇒ Object (readonly)

Returns the value of attribute migration_completed.



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# File 'lib/xmigra/branch_upgrade.rb', line 32

def migration_completed
  @migration_completed
end

#target_branch ⇒ Object (readonly)

Returns the value of attribute target_branch.



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# File 'lib/xmigra/branch_upgrade.rb', line 32

def target_branch
  @target_branch
end

Instance Method Details

#applicable?(mig_chain) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/xmigra/branch_upgrade.rb', line 38

def applicable?(mig_chain)
  return false if mig_chain.length < 1
  return false unless (@base_migration && @target_branch)
  
  return File.basename(mig_chain[-1].file_path) == XMigra.yaml_path(@base_migration)
end

#found? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/xmigra/branch_upgrade.rb', line 34

def found?
  @found
end

#has_warnings? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/xmigra/branch_upgrade.rb', line 45

def has_warnings?
  not @warnings.empty?
end

#migration_completed_id ⇒ Object 



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# File 'lib/xmigra/branch_upgrade.rb', line 63

def migration_completed_id
  Migration.id_from_filename(XMigra.yaml_path(migration_completed))
end

#sql ⇒ Object 



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# File 'lib/xmigra/branch_upgrade.rb', line 53

def sql
  if Plugin.active
    @sql.dup.tap do |result|
      Plugin.active.amend_source_sql(result)
    end
  else
    @sql
  end
end

#warnings ⇒ Object 



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# File 'lib/xmigra/branch_upgrade.rb', line 49

def warnings
  @warnings.dup
end