d7_file.yml

# Every migration that references a file by Drupal 7 fid should specify this
# migration as an optional dependency.
id: d7_file
label: Public files
audit: true
migration_tags:
  - Drupal 7
  - Content
source:
  plugin: d7_file
  scheme: public
  constants:
    # The tool configuring this migration must set source_base_path. It
    # represents the fully qualified path relative to which URIs in the files
    # table are specified. This can be a local file directory containing the
    # source site, e.g. /var/www/docroot, or the site address,
    # e.g. https://example.com. This value will be concatenated with the file
    # path (typically sites/default/files) and used as the source location for
    # the files.
    #
    # Suppose that the source files have been moved by other means to a location
    # on the destination site.
    # Source site:
    #   Location of files: /var/www/html/legacy/sites/default/files
    #   Public scheme: sites/default/files
    # In this example, source_base_path should be '/var/www/html/legacy'.
    #
    # Suppose that the source site is a multisite installation at
    # https://example.com, and you plan to copy the files from there.
    # Source site:
    #   Location of files: https://example.com/sites/example.com/files
    #   Public scheme: sites/example.com/files
    # In this example, source_base_path should be 'https://example.com'.
    #
    # See the configuration for the source_full_path property in the process
    # section below.
    source_base_path: ''
process:
  # If you are using this file to build a custom migration consider removing
  # the fid field to allow incremental migrations.
  fid: fid
  filename: filename
  source_full_path:
    -
      plugin: concat
      delimiter: /
      source:
        - constants/source_base_path
        - filepath
    -
      plugin: urlencode
  uri:
    plugin: file_copy
    source:
      - '@source_full_path'
      - uri
  filemime: filemime
  # No need to migrate filesize, it is computed when file entities are saved.
  # filesize: filesize
  status: status
  # Drupal 7 didn't keep track of the file's creation or update time -- all it
  # had was the vague "timestamp" column. So we'll use it for both.
  created: timestamp
  changed: timestamp
  uid: uid
destination:
  plugin: entity:file