drupy

A multisite capable Drupal site-builder based on JSON-recipes.

Features

• Download and extract packages, prepare a Drupal tree and run "drush
  site-install" all from the same set of configuration files.
• Package lists and site-configurations are pure JSON (ie. easy
  machine-generateable).
• configuration files can "include" other json-files (even remote
  files).
• Built-in support for multisite installations (optimized for sharing
  code in a manageable way).
• Install files from: git repositores, tarballs, local directories,
  copy files, patches
• Fast: if you change only one project (ie. add a patch) only this
  project is rebuilt.
• Use hashes to check the integrity of downloaded files.

Requirements

• Python3
• git
• drush (for running site-install)
• rsync
• A symlink capable file-system

FAQ

• Why not simply use drush make? For our multi-site setup we'd
  like a directory structure that looks something like:

projects/  # packages
  module1-7.x-1.0/   # code of module1
  module1-7.x-2.1/   # another version of module1
  somesite/          # code of the custom somesite projects
  theproject/        # another custom project with a install_profile
htdocs/    # drupal-root
  profiles/
  theproject/ -> ../../projects/theproject
  minimal/
  standard/
  testing/

  sites/
    somesite/
    modules/         # symlinks to projects in the projects sub-folder
      contrib/       # only one copy of a module per version.
        module1 -> ../../../../../projects/module1-7.x-1.0
        …

    themes/
      contrib/
        theme1 -> ../../../../../projects/theme1-7.x-1.0
        …

  othersite/
    modules/
    contrib/         # allow different versions of a module per site
      module1 -> ../../../../../projects/module1-7.x-2.0

Directory layouts like this seems rather cumbersome with drush make
which seems to be a bit biased towards a one-drupal-tree-per-site
approach of hosting.

• Why not use sites/all/ for code-sharing? sites/all/ doesn't allow us to update modules site by site. If an module has an update-hook (ie. brings down your site until drush updb is run) you have to update the module-code. Then you need to run drush updb in all sites to bring them online again. So the mean down-time for a site is: n/2. With lots of sites this can take quite some time.

• Why care for code sharing at all? Sharing the code for modules means that our opcode cache needs to hold only one copy of a file instead of one per site.