Method: Promotion::Enforcer#start

Defined in:
lib/promotion/enforcer.rb

#start ⇒ Object

Enforces the conditions needed for the selected app to function properly, as specified in the deployment descriptor:

  • ensure that certain groups exist

  • ensure that certain users exist (belonging to certain groups)

  • ensure that certain folders exist, if not create them; set permissions correctly; if desired, make sure they are empty

  • move specified files into place, set ownerships and permissions; create empty, or make empty, or preserve contents as desired.

  • ensure symbolic link exists, create if missing

  • create a zip archive of certain files if desired.



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# File 'lib/promotion/enforcer.rb', line 56

def start()
  @spec.elements.each("/Specification/Groups/Group") { |group|
    gid = group.attributes["Gid"].to_i
    name = group.attributes["Name"]
    create_group(gid, name) unless group_exist?(gid, name)
  }
  @spec.elements.each("/Specification/Users/User") { |user|
    uid = user.attributes["Uid"].to_i
    name = user.attributes["Name"]
    gid = user.attributes["Gid"].to_i
    uclass = user.attributes["Class"] || "default"
    gecos = user.attributes["Gecos"] || ""
    home = user.attributes["Home"] || "/home/#{name}"
    shell = user.attributes["Shell"] || "/bin/ksh"
    groups = user.attributes["Groups"] || ""
    groups = groups.gsub(/\s+/, ",")    # adduser needs comma-separated groups
    create_user(uid, name, gid, uclass, gecos, home, shell, groups) unless user_exist?(uid, name)
  }
  @spec.elements.each("/Specification/Folders/Folder[@Clear='true']") { |folder|
    path = folder.text().strip()
    clear_folder(path)
  }
  @spec.elements.each("/Specification/Folders/Folder") { |folder|
    path = folder.text().strip()
    owner = folder.attributes["Owner"] || folder.parent.attributes["Owner"] || DEFAULT_FOLDER_OWNER
    group = folder.attributes["Group"] || folder.parent.attributes["Group"] || DEFAULT_FOLDER_GROUP
    mode =  folder.attributes["Mode"]  || folder.parent.attributes["Mode"]  || DEFAULT_FOLDER_MODE
    clear = folder.attributes["Clear"]  || folder.parent.attributes["Clear"] || DEFAULT_FOLDER_MODE
    mode = mode.oct()
    clear = (clear == "true")
    ensure_folder(path, owner, group, mode, clear)
  }
  @spec.elements.each("/Specification/Files/File") { |file|
    path = file.text().strip()
    owner = file.attributes["Owner"] || file.parent.attributes["Owner"] || DEFAULT_FILE_OWNER
    group = file.attributes["Group"] || file.parent.attributes["Group"] || DEFAULT_FILE_GROUP
    mode =  file.attributes["Mode"]  || file.parent.attributes["Mode"]  || DEFAULT_FILE_MODE
    mode = mode.oct()
    source = file.attributes["Source"] || file.parent.attributes["Source"] || DEFAULT_FILE_SOURCE
    empty = file.attributes["Empty"] == "true"
    overwrite = !(file.attributes["Overwrite"] == "false")
    backup = file.attributes["Backup"] == "true"
    ensure_file(path, owner, group, mode, source, empty, overwrite, backup)
  }
  @spec.elements.each("/Specification/Files/Link") { |link|
    path = link.text().strip()
    owner = link.attributes["Owner"] || link.parent.attributes["Owner"] || DEFAULT_FILE_OWNER
    group = link.attributes["Group"] || link.parent.attributes["Group"] || DEFAULT_FILE_GROUP
    mode =  link.attributes["Mode"]  || link.parent.attributes["Mode"]  || DEFAULT_FILE_MODE
    mode = mode.oct()
    target = link.attributes["Target"] || link.parent.attributes["Source"] || DEFAULT_FILE_SOURCE
    ensure_link(path, owner, group, mode, target)
  }
  @spec.elements.each("/Specification/Allfiles") { |file|
    path = file.text().strip()
    owner = file.attributes["Owner"] || file.parent.attributes["Owner"] || DEFAULT_FILE_OWNER
    group = file.attributes["Group"] || file.parent.attributes["Group"] || DEFAULT_FILE_GROUP
    mode =  file.attributes["Mode"]  || file.parent.attributes["Mode"]  || DEFAULT_FILE_MODE
    mode = mode.oct()
    source = file.attributes["Source"] || file.parent.attributes["Source"] || DEFAULT_FILE_SOURCE
    ensure_allfiles(path, owner, group, mode, source)
  }
  @spec.elements.each("/Specification/Subversion") { |svn|
    folder = svn.elements["Folder"].text
    url = svn.elements["Url"].text
    svn_check_out(url, folder)
  }
  @spec.elements.each("/Specification/Zipfile") { |zipfile|
    build_zip_file(zipfile)
  }
end