Allow adding copyright headers to non-templated files in downstream-selective way (#7937) (#5696)

* Add work-in-progress for adding copyright headers to non-templated files in downstream-selective way

* Update quotation marks to address CI failure/linting issue

* Update WIP to include better ignoring of files and folders

* Address RuboCop linting

* Address RuboCop linting

* Address RuboCop linting - line length

* Add ability to make comments for different file extensions

* Skip adding headers to bash files, as headers are functional in .sh

* Stop headers being added to tgc

* Update logging messages and set level to debug, update comments

* Address RuboCop linting

* Address RuboCop linting

* Add comment making link to .copywrite.hcl file explicit

* Don't attempt to add a header when an unexpected file extension is encountered

* Add info log about unexpected output folder

This will help if a user suddenly sees copyright headers being removed unexpectedly

* Include `add_hashicorp_copyright_header` in `copy_file_list` method

* Add condition to run on Go files only, as that ensures doesn't run on folders

* Remove handcoded HashiCorp copyright headers in handwritten/compiled files (revert GoogleCloudPlatform/magic-modules#8012)

* Fix HashiCorp copyright header content

* Fix how `version.go` is copied, to allow copyright header to be added

* Add tests for `expected_output_folder?` Ruby method

* Add copyright to test file, update test names and handle line length linting

Signed-off-by: Modular Magician <[email protected]>

Author: modular-magician

.changelog/7937.txt

@@ -0,0 +1,3 @@
+```release-note:none
+
+```

google-beta/acctest/gcp_sweeper.go

@@ -1,6 +1,5 @@
 // Copyright (c) HashiCorp, Inc.
 // SPDX-License-Identifier: MPL-2.0
-
 package acctest
 
 import (

google-beta/acctest/provider_test_utils.go

@@ -1,6 +1,5 @@
 // Copyright (c) HashiCorp, Inc.
 // SPDX-License-Identifier: MPL-2.0
-
 package acctest
 
 import (

google-beta/acctest/test_utils.go

@@ -1,6 +1,5 @@
 // Copyright (c) HashiCorp, Inc.
 // SPDX-License-Identifier: MPL-2.0
-
 package acctest
 
 import (

google-beta/acctest/vcr_utils.go

@@ -1,6 +1,5 @@
 // Copyright (c) HashiCorp, Inc.
 // SPDX-License-Identifier: MPL-2.0
-
 package acctest
 
 import "os"

google-beta/appengine_operation.go

@@ -1,3 +1,5 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
 package google
 
 import (

google-beta/bootstrap_iam_test_utils.go

@@ -1,3 +1,5 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
 package google
 
 import (

google-beta/bootstrap_test_utils.go

@@ -1,3 +1,5 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
 package google
 
 import (

google-beta/cloud_identity_group_membership_utils.go

@@ -1,3 +1,5 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
 package google
 
 import (

google-beta/cloudfunctions_operation.go

@@ -1,3 +1,5 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
 package google
 
 import (