Feature: Command to remove targets to the TUF repository.

@rugged @command @remove-targets
Feature: Command to remove targets to the TUF repository.
  In order to host TUF metadata
  As an administrator
  I need to remove targets to a TUF repo.

  Background:
    Given I initialize a Rugged repo
    And I am in the "/var/rugged/incoming_targets" directory

  Scenario: Fail when no target file to remove is specified.
    When I try to run "sudo -u rugged rugged --debug remove-targets"
    Then I should not get:
      """
      Removed the following targets from the repository:
      """
    And I should get:
      """
      error: Missing argument '[TARGETS]...'.
      """

  Scenario: Fail when trying to remove a target file that is not in the repository.
    Given I try to run "grep -r test0.txt ../tuf_repo/metadata"
    And I should not get:
      """
      targets.json
      """
    When I try to run "sudo -u rugged rugged --debug remove-targets test0.txt"
    Then I should not get:
      """
      Removed the following targets from the repository:
      """
    And I should get:
      """
      error: Failed to remove one or more targets from TUF repository.
      Check the logs for more detailed error reporting.
      """

  Scenario: Remove a target file.
    Given file "test0.txt" contains "test0"
    And I run "sudo -u rugged rugged add-targets"
    And I run "grep -r test0.txt ../tuf_repo/metadata"
    And I should get:
      """
      targets.json
      """
    When I run "sudo -u rugged rugged --debug remove-targets test0.txt"
    Then I should get:
      """
      Removed the following targets from the repository:
      test0.txt
      """
    When I run "sudo -u rugged rugged logs --worker=targets-worker --limit=0"
    Then I should get:
      """
      INFO (targets-worker.remove_targets_task): Received remove-targets task.
      INFO (repo.remove_targets): Removed target 'test0.txt' from the repository.
      INFO (repo._delete_removed_target): Deleted target file '/var/rugged/tuf_repo/targets/test0.txt'.
      DEBUG (repo._sign_metadata): Signed 'targets' metadata with 'targets' key.
      DEBUG (repo.write_metadata): Wrote 'targets' metadata to file '/var/rugged/tuf_repo/metadata/targets.json'.
      """
    When I run "sudo -u rugged rugged logs --worker=snapshot-worker --limit=0"
    Then I should get:
      """
      INFO (snapshot-worker.update_snapshot_task): Received update-snapshot task.
      INFO (repo.update_snapshot): Updated snapshot metadata.
      DEBUG (repo._sign_metadata): Signed 'snapshot' metadata with 'snapshot' key.
      DEBUG (repo.write_metadata): Wrote 'snapshot' metadata to file '/var/rugged/tuf_repo/metadata/snapshot.json'.
      INFO (snapshot-worker.update_snapshot_task): Updated snapshot metadata.
      """
    When I run "sudo -u rugged rugged logs --worker=timestamp-worker --limit=0"
    Then I should get:
      """
      INFO (timestamp-worker.update_timestamp_task): Received update-timestamp task.
      INFO (repo.update_timestamp): Updated timestamp metadata.
      DEBUG (repo._sign_metadata): Signed 'timestamp' metadata with 'timestamp' key.
      DEBUG (repo.write_metadata): Wrote 'timestamp' metadata to file '/var/rugged/tuf_repo/metadata/timestamp.json'.
      INFO (timestamp-worker.update_timestamp_task): Updated timestamp metadata.
      """

  Scenario: Verify that metadata is updated.
    Given file "test0.txt" contains "test0"
    And I run "sudo -u rugged rugged add-targets"
    And I record a reference hash of "../tuf_repo/metadata/root.json"
    And I record a reference hash of "../tuf_repo/metadata/snapshot.json"
    And I record a reference hash of "../tuf_repo/metadata/targets.json"
    And I record a reference hash of "../tuf_repo/metadata/timestamp.json"
    When I run "sudo -u rugged rugged remove-targets test0.txt"
    Then file "../tuf_repo/metadata/root.json" has not changed
    And file "../tuf_repo/metadata/snapshot.json" has changed
    And file "../tuf_repo/metadata/targets.json" has changed
    And file "../tuf_repo/metadata/timestamp.json" has changed

  Scenario: Remove multiple target files, including one in a subdirectory.
    Given file "test0.txt" contains "test0"
    And file "test1.txt" contains "test1"
    And the directory "foo/bar" exists
    And file "foo/bar/test2.txt" contains "test2"
    And I run "sudo -u rugged rugged add-targets"
    When I run "sudo -u rugged rugged --debug remove-targets test0.txt foo/bar/test2.txt"
    Then I should get:
      """
      Removed the following targets from the repository:
      test0.txt
      foo/bar/test2.txt
      Updated targets metadata.
      Updated snapshot metadata.
      Updated timestamp metadata.
      """
    When I try to run "grep -r test0.txt ../tuf_repo/metadata"
    Then I should not get:
      """
      targets.json
      """
    When I run "grep -r test1.txt ../tuf_repo/metadata"
    Then I should get:
      """
      targets.json
      """
    When I try to run "grep -r foo/bar/test2.txt ../tuf_repo/metadata"
    Then I should not get:
      """
      targets.json
      """
    When I run "sudo -u rugged rugged logs --worker=targets-worker --limit=0"
    Then I should get:
      """
      INFO (targets-worker.remove_targets_task): Received remove-targets task.
      INFO (repo.remove_targets): Removed target 'test0.txt' from the repository.
      INFO (repo._delete_removed_target): Deleted target file '/var/rugged/tuf_repo/targets/test0.txt'.
      INFO (repo.remove_targets): Removed target 'foo/bar/test2.txt' from the repository.
      INFO (repo._delete_removed_target): Deleted target file '/var/rugged/tuf_repo/targets/foo/bar/test2.txt'.
      DEBUG (repo._delete_empty_target_dirs): Cleaned up empty directory '/var/rugged/tuf_repo/targets/foo/bar'.
      DEBUG (repo._delete_empty_target_dirs): Cleaned up empty directory '/var/rugged/tuf_repo/targets/foo'.
      DEBUG (repo._sign_metadata): Signed 'targets' metadata with 'targets' key.
      DEBUG (repo.write_metadata): Wrote 'targets' metadata to file '/var/rugged/tuf_repo/metadata/targets.json'.
      """

5 scenarios (5 passed)
56 steps (56 passed)