Ensure license headers match the Cargo manifest licenses (#5776)

- Closes paritytech/license-scanner#44 - Silent because only comments are changed in the crates. ## What's inside First, we change the file traversal mechanism from shell globbing to walking through files which happens inside the `license-scanner` - so it has knowledge about directory structure and can correlate files with corresponding Cargo manifest. Next, added `MIT-0` and `Unlicense` to the allowed list of licenses. `Unlicense` appears only once across {Substrate,Cumulus,Polkadot} - in `penpal-runtime`. Finally, updated headers in files that do not match the corresponding manifest license. --------- Co-authored-by: cornholio <0@mcornholio.ru>
paritytech · Feb 7, 2025 · 3726493 · 3726493
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diff --git a/.github/workflows/check-licenses.yml b/.github/workflows/check-licenses.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     env:
-      LICENSES: "'Apache-2.0' 'GPL-3.0-only' 'GPL-3.0-or-later WITH Classpath-exception-2.0'"
+      LICENSES: "'Apache-2.0' 'GPL-3.0-only' 'GPL-3.0-or-later WITH Classpath-exception-2.0' 'MIT-0' 'Unlicense'"
       NODE_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
       - name: Checkout sources
@@ -32,21 +32,24 @@ jobs:
           shopt -s globstar
           npx @paritytech/license-scanner scan \
             --ensure-licenses ${{ env.LICENSES }} \
-            -- ./polkadot/**/*.rs
+            --file-extensions '.rs' \
+            -- ./polkadot
 
       - name: Check the licenses in Cumulus
         run: |
           shopt -s globstar
           npx @paritytech/license-scanner scan \
-            --ensure-licenses ${{ env.LICENSES }} \
-            -- ./cumulus/**/*.rs
+            --ensure-licenses ${{ env.LICENSES }} 'Unlicense' \
+            --file-extensions '.rs' \
+            -- ./cumulus
 
       - name: Check the licenses in Substrate
         run: |
           shopt -s globstar
           npx @paritytech/license-scanner scan \
             --ensure-licenses ${{ env.LICENSES }} \
-            -- ./substrate/**/*.rs
+            --file-extensions '.rs' \
+            -- ./substrate
 
   check-product-references:
     runs-on: ubuntu-latest
@@ -67,18 +70,21 @@ jobs:
           shopt -s globstar
           npx @paritytech/license-scanner scan \
             --ensure-product 'Polkadot' \
-            -- ./polkadot/**/*.rs
+            --file-extensions '.rs' \
+            -- ./polkadot
 
       - name: Check the product references in Cumulus
         run: |
           shopt -s globstar
           npx @paritytech/license-scanner scan \
             --ensure-product 'Cumulus' \
-            -- ./cumulus/**/*.rs
+            --file-extensions '.rs' \
+            -- ./cumulus
 
       - name: Check the product references in Substrate
         run: |
           shopt -s globstar
           npx @paritytech/license-scanner scan \
             --ensure-product 'Substrate' \
-            -- ./substrate/**/*.rs
+            --file-extensions '.rs' \
+            -- ./substrate
diff --git a/cumulus/client/cli/src/lib.rs b/cumulus/client/cli/src/lib.rs
@@ -1,5 +1,6 @@
 // Copyright (C) Parity Technologies (UK) Ltd.
 // This file is part of Cumulus.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
 
 // Cumulus is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -8,11 +9,11 @@
 
 // Cumulus is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+// along with Cumulus. If not, see <https://www.gnu.org/licenses/>.
 
 //! Cumulus CLI library.
 

diff --git a/cumulus/client/collator/src/lib.rs b/cumulus/client/collator/src/lib.rs
@@ -1,5 +1,6 @@
 // Copyright (C) Parity Technologies (UK) Ltd.
 // This file is part of Cumulus.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
 
 // Cumulus is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -8,11 +9,11 @@
 
 // Cumulus is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+// along with Cumulus. If not, see <https://www.gnu.org/licenses/>.
 
 //! Cumulus Collator implementation for Substrate.
 

diff --git a/cumulus/client/collator/src/service.rs b/cumulus/client/collator/src/service.rs
@@ -1,5 +1,6 @@
 // Copyright (C) Parity Technologies (UK) Ltd.
 // This file is part of Cumulus.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
 
 // Cumulus is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -8,11 +9,11 @@
 
 // Cumulus is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+// along with Cumulus. If not, see <https://www.gnu.org/licenses/>.
 
 //! The Cumulus [`CollatorService`] is a utility struct for performing common
 //! operations used in parachain consensus/authoring.

diff --git a/cumulus/client/consensus/aura/src/collator.rs b/cumulus/client/consensus/aura/src/collator.rs
@@ -1,5 +1,6 @@
 // Copyright (C) Parity Technologies (UK) Ltd.
 // This file is part of Cumulus.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
 
 // Cumulus is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -8,11 +9,11 @@
 
 // Cumulus is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+// along with Cumulus. If not, see <https://www.gnu.org/licenses/>.
 
 //! The core collator logic for Aura - slot claiming, block proposing, and collation
 //! packaging.

diff --git a/cumulus/client/consensus/aura/src/collators/basic.rs b/cumulus/client/consensus/aura/src/collators/basic.rs
@@ -1,5 +1,6 @@
 // Copyright (C) Parity Technologies (UK) Ltd.
 // This file is part of Cumulus.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
 
 // Cumulus is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -8,11 +9,11 @@
 
 // Cumulus is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+// along with Cumulus. If not, see <https://www.gnu.org/licenses/>.
 
 //! This provides the option to run a basic relay-chain driven Aura implementation.
 //!

diff --git a/cumulus/client/consensus/aura/src/collators/lookahead.rs b/cumulus/client/consensus/aura/src/collators/lookahead.rs
@@ -1,5 +1,6 @@
 // Copyright (C) Parity Technologies (UK) Ltd.
 // This file is part of Cumulus.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
 
 // Cumulus is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -8,11 +9,11 @@
 
 // Cumulus is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+// along with Cumulus. If not, see <https://www.gnu.org/licenses/>.
 
 //! A collator for Aura that looks ahead of the most recently included parachain block
 //! when determining what to build upon.

diff --git a/cumulus/client/consensus/aura/src/collators/mod.rs b/cumulus/client/consensus/aura/src/collators/mod.rs
@@ -1,5 +1,6 @@
 // Copyright (C) Parity Technologies (UK) Ltd.
 // This file is part of Cumulus.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
 
 // Cumulus is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -8,11 +9,11 @@
 
 // Cumulus is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+// along with Cumulus. If not, see <https://www.gnu.org/licenses/>.
 
 //! Stock, pure Aura collators.
 //!

diff --git a/cumulus/client/consensus/aura/src/collators/slot_based/block_builder_task.rs b/cumulus/client/consensus/aura/src/collators/slot_based/block_builder_task.rs
@@ -1,5 +1,6 @@
 // Copyright (C) Parity Technologies (UK) Ltd.
 // This file is part of Cumulus.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
 
 // Cumulus is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -8,11 +9,11 @@
 
 // Cumulus is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+// along with Cumulus. If not, see <https://www.gnu.org/licenses/>.
 
 use codec::{Codec, Encode};
 

diff --git a/cumulus/client/consensus/aura/src/collators/slot_based/block_import.rs b/cumulus/client/consensus/aura/src/collators/slot_based/block_import.rs
@@ -1,5 +1,6 @@
 // Copyright (C) Parity Technologies (UK) Ltd.
 // This file is part of Cumulus.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
 
 // Cumulus is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -8,11 +9,11 @@
 
 // Cumulus is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+// along with Cumulus. If not, see <https://www.gnu.org/licenses/>.
 
 use futures::{stream::FusedStream, StreamExt};
 use sc_consensus::{BlockImport, StateAction};

diff --git a/cumulus/client/consensus/aura/src/collators/slot_based/collation_task.rs b/cumulus/client/consensus/aura/src/collators/slot_based/collation_task.rs
@@ -1,5 +1,6 @@
 // Copyright (C) Parity Technologies (UK) Ltd.
 // This file is part of Cumulus.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
 
 // Cumulus is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -8,11 +9,11 @@
 
 // Cumulus is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+// along with Cumulus. If not, see <https://www.gnu.org/licenses/>.
 
 use codec::Encode;
 

diff --git a/cumulus/client/consensus/aura/src/collators/slot_based/mod.rs b/cumulus/client/consensus/aura/src/collators/slot_based/mod.rs
@@ -1,5 +1,6 @@
 // Copyright (C) Parity Technologies (UK) Ltd.
 // This file is part of Cumulus.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
 
 // Cumulus is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -8,11 +9,11 @@
 
 // Cumulus is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+// along with Cumulus. If not, see <https://www.gnu.org/licenses/>.
 
 //! A collator for Aura that looks ahead of the most recently included parachain block
 //! when determining what to build upon.

diff --git a/cumulus/client/consensus/aura/src/collators/slot_based/relay_chain_data_cache.rs b/cumulus/client/consensus/aura/src/collators/slot_based/relay_chain_data_cache.rs
@@ -1,5 +1,6 @@
 // Copyright (C) Parity Technologies (UK) Ltd.
 // This file is part of Cumulus.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
 
 // Cumulus is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -8,11 +9,11 @@
 
 // Cumulus is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+// along with Cumulus. If not, see <https://www.gnu.org/licenses/>.
 
 //! Utility for caching [`RelayChainData`] for different relay blocks.
 

diff --git a/cumulus/client/consensus/aura/src/equivocation_import_queue.rs b/cumulus/client/consensus/aura/src/equivocation_import_queue.rs
@@ -1,5 +1,6 @@
 // Copyright (C) Parity Technologies (UK) Ltd.
 // This file is part of Cumulus.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
 
 // Cumulus is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -8,11 +9,11 @@
 
 // Cumulus is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+// along with Cumulus. If not, see <https://www.gnu.org/licenses/>.
 
 /// An import queue which provides some equivocation resistance with lenient trait bounds.
 ///

diff --git a/cumulus/client/consensus/aura/src/import_queue.rs b/cumulus/client/consensus/aura/src/import_queue.rs
@@ -1,5 +1,6 @@
 // Copyright (C) Parity Technologies (UK) Ltd.
 // This file is part of Cumulus.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
 
 // Cumulus is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -8,11 +9,11 @@
 
 // Cumulus is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+// along with Cumulus. If not, see <https://www.gnu.org/licenses/>.
 
 //! Parachain specific wrapper for the AuRa import queue.
 

diff --git a/cumulus/client/consensus/aura/src/lib.rs b/cumulus/client/consensus/aura/src/lib.rs
@@ -1,5 +1,6 @@
 // Copyright (C) Parity Technologies (UK) Ltd.
 // This file is part of Cumulus.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
 
 // Cumulus is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -8,11 +9,11 @@
 
 // Cumulus is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+// along with Cumulus. If not, see <https://www.gnu.org/licenses/>.
 
 //! The AuRa consensus algorithm for parachains.
 //!

diff --git a/cumulus/client/consensus/common/src/import_queue.rs b/cumulus/client/consensus/common/src/import_queue.rs
@@ -1,5 +1,6 @@
 // Copyright (C) Parity Technologies (UK) Ltd.
 // This file is part of Cumulus.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
 
 // Cumulus is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -8,11 +9,11 @@
 
 // Cumulus is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with Cumulus.  If not, see <http://www.gnu.org/licenses/>.
+// along with Cumulus. If not, see <https://www.gnu.org/licenses/>.
 
 //! (unstable) Composable utilities for constructing import queues for parachains.
 //!