Standardize copyright headers. (#567)

* Standardize copyright headers.

* Add copyright header check to CI.

.github/copyright.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+# If there are new files with headers that can't match the conditions here,
+# then the files can be ignored by an additional glob argument via the -g flag.
+# For example:
+#   -g "!src/special_file.rs"
+#   -g "!src/special_directory"
+
+# Check all the standard Rust source files
+output=$(rg "^// Copyright (19|20)[\d]{2} (.+ and )?the Piet Authors( and .+)?$\n^// SPDX-License-Identifier: Apache-2\.0 OR MIT$\n\n" --files-without-match --multiline -g "*.rs" .)
+
+if [ -n "$output" ]; then
+	echo -e "The following files lack the correct copyright header:\n"
+	echo $output
+	echo -e "\n\nPlease add the following header:\n"
+	echo "// Copyright $(date +%Y) the Piet Authors"
+	echo "// SPDX-License-Identifier: Apache-2.0 OR MIT"
+	echo -e "\n... rest of the file ...\n"
+	exit 1
+fi
+
+echo "All files have correct copyright headers."
+exit 0

.github/workflows/ci.yml

@@ -29,6 +29,14 @@ jobs:
       - name: cargo fmt
         run: cargo fmt --all --check
 
+      - name: install ripgrep
+        run: |
+          sudo apt update
+          sudo apt install ripgrep
+
+      - name: check copyright headers
+        run: bash .github/copyright.sh
+
   test-stable:
     runs-on: ${{ matrix.os }}
     strategy:

piet-cairo/Cargo.toml

@@ -3,7 +3,7 @@ name = "piet-cairo"
 version = "0.6.2"
 authors = ["Raph Levien <[email protected]>"]
 description = "Cairo backend for piet 2D graphics abstraction."
-license = "MIT/Apache-2.0"
+license = "Apache-2.0 OR MIT"
 repository = "https://github.com/linebender/piet"
 readme = "../README.md"
 edition = "2018"

piet-cairo/benches/make_image.rs

@@ -1,3 +1,6 @@
+// Copyright 2021 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 use cairo::{Context, Format, ImageSurface};
 use criterion::{black_box, criterion_group, criterion_main, Criterion};
 use piet::{ImageFormat, RenderContext};

piet-cairo/examples/test-picture.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Basic example of rendering on Cairo.
 
 use std::fmt::Write as _;

piet-cairo/src/lib.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! The Cairo backend for the Piet 2D graphics abstraction.
 
 #![deny(clippy::trivially_copy_pass_by_ref)]

piet-cairo/src/text.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Text functionality for Piet cairo backend
 
 use std::convert::TryInto;

piet-common/Cargo.toml

@@ -3,7 +3,7 @@ name = "piet-common"
 version = "0.6.2"
 authors = ["Raph Levien <[email protected]>"]
 description = "Selection of a single preferred back-end for piet"
-license = "MIT/Apache-2.0"
+license = "Apache-2.0 OR MIT"
 repository = "https://github.com/linebender/piet"
 readme = "README.md"
 edition = "2018"

piet-common/examples/mondrian.rs

@@ -1,3 +1,6 @@
+// Copyright 2021 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! This example implements a generative algorithm for making pictures like
 //! Piet Mondrian's squares.
 // TODO: Remove all the wasm32 cfg guards once this compiles with piet-web

piet-common/src/cairo_back.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 // allows e.g. raw_data[dst_off + x * 4 + 2] = buf[src_off + x * 4 + 0];
 #![allow(clippy::identity_op)]
 

piet-common/src/cg_back.rs

@@ -1,3 +1,6 @@
+// Copyright 2020 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 // allows e.g. raw_data[dst_off + x * 4 + 2] = buf[src_off + x * 4 + 0];
 #![allow(clippy::identity_op)]
 

piet-common/src/direct2d_back.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Support for piet Direct2D back-end.
 
 #[cfg(feature = "png")]

piet-common/src/lib.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! A piet backend appropriate for the current platform.
 //!
 //! This crate reexports the [piet crate][piet], alongside an appropriate backend

piet-common/src/web_back.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Support for piet Web back-end.
 
 use std::fmt;

piet-common/tests/image.rs

@@ -1,3 +1,6 @@
+// Copyright 2020 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 use kurbo::{Rect, Size};
 use piet_common::*;
 

piet-common/tests/text.rs

@@ -1,3 +1,6 @@
+// Copyright 2020 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Basic conformance testing for text.
 
 #[cfg(target_arch = "wasm32")]

piet-coregraphics/Cargo.toml

@@ -3,7 +3,7 @@ name = "piet-coregraphics"
 version = "0.6.2"
 authors = ["Jeff Muizelaar <[email protected]>, Raph Levien <[email protected]>, Colin Rofls <[email protected]>"]
 description = "CoreGraphics backend for piet 2D graphics abstraction."
-license = "MIT/Apache-2.0"
+license = "Apache-2.0 OR MIT"
 repository = "https://github.com/linebender/piet"
 readme = "../README.md"
 edition = "2018"

piet-coregraphics/examples/test-picture.rs

@@ -1,3 +1,6 @@
+// Copyright 2020 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Run the piet-test examples with the coregraphics backend.
 
 use std::path::Path;

piet-coregraphics/src/ct_helpers.rs

@@ -1,3 +1,6 @@
+// Copyright 2020 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Wrappers around CF/CT types, with nice interfaces.
 
 #![allow(clippy::upper_case_acronyms)]

piet-coregraphics/src/gradient.rs

@@ -1,3 +1,6 @@
+// Copyright 2020 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 #![allow(non_upper_case_globals)]
 
 //! core graphics gradient support

piet-coregraphics/src/lib.rs

@@ -1,3 +1,6 @@
+// Copyright 2020 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! The CoreGraphics backend for the Piet 2D graphics abstraction.
 
 #![deny(clippy::trivially_copy_pass_by_ref)]

piet-coregraphics/src/text.rs

@@ -1,3 +1,6 @@
+// Copyright 2020 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Text related stuff for the coregraphics backend
 
 use std::cell::RefCell;

piet-direct2d/Cargo.toml

@@ -3,7 +3,7 @@ name = "piet-direct2d"
 version = "0.6.2"
 authors = ["Raph Levien <[email protected]>"]
 description = "Direct2D backend for piet 2D graphics abstraction."
-license = "MIT/Apache-2.0"
+license = "Apache-2.0 OR MIT"
 repository = "https://github.com/linebender/piet"
 readme = "../README.md"
 edition = "2018"

piet-direct2d/examples/test-picture.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Basic example of rendering on Direct2D.
 
 use std::path::Path;

piet-direct2d/src/conv.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Conversions of types into Direct2D
 
 use winapi::um::d2d1::{

piet-direct2d/src/d2d.rs

@@ -1,3 +1,6 @@
+// Copyright 2020 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Convenience wrappers for Direct2D objects.
 //!
 //! These also function as safety boundaries (though determining the

piet-direct2d/src/d3d.rs

@@ -1,3 +1,6 @@
+// Copyright 2020 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 use std::ptr::null_mut;
 
 // TODO figure out whether to export this or to move `raw_pixels` into this module.

piet-direct2d/src/dwrite.rs

@@ -1,3 +1,6 @@
+// Copyright 2020 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Convenience wrappers for DirectWrite objects.
 
 // TODO: get rid of this when we actually do use everything

piet-direct2d/src/error.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Error conversion from D2D/DWrite to piet Error.
 
 use std::fmt;

piet-direct2d/src/lib.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 #![cfg(windows)]
 // allows for nice formatting for e.g. new_buf[i * 4 + 0] = premul(buf[i * 4 + 0, a)
 #![allow(clippy::identity_op)]

piet-direct2d/src/text.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Text functionality for Piet direct2d backend
 
 mod lines;

piet-direct2d/src/text/lines.rs

@@ -1,3 +1,6 @@
+// Copyright 2020 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 use crate::dwrite;
 use piet::{util, LineMetric};
 

piet-svg/Cargo.toml

@@ -4,7 +4,7 @@ version = "0.6.2"
 authors = ["Benjamin Saunders <[email protected]>"]
 description = "SVG backend for piet 2D graphics abstraction."
 edition = "2018"
-license = "MIT/Apache-2.0"
+license = "Apache-2.0 OR MIT"
 repository = "https://github.com/linebender/piet"
 keywords = ["graphics", "2d"]
 categories = ["rendering::graphics-api"]

piet-svg/examples/basic-svg.rs

@@ -1,3 +1,6 @@
+// Copyright 2020 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Basic example of rendering to a SVG
 
 use std::io;

piet-svg/src/evcxr.rs

@@ -1,3 +1,6 @@
+// Copyright 2021 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Helpers to make the SVG output of `piet-svg` easier to use from within `evcxr_jupyter`.
 //!
 //! [`evcxr`] is a Rust REPL. It also provides a Rust kernel for the [Jupyter Notebook] through

piet-svg/src/lib.rs

@@ -1,3 +1,6 @@
+// Copyright 2020 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! SVG output support for piet
 
 #![deny(clippy::trivially_copy_pass_by_ref)]

piet-svg/src/text.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Text functionality for Piet svg backend
 
 use std::{

piet-web/Cargo.toml

@@ -3,7 +3,7 @@ name = "piet-web"
 version = "0.6.2"
 authors = ["Raph Levien <[email protected]>"]
 description = "Web canvas backend for piet 2D graphics abstraction."
-license = "MIT/Apache-2.0"
+license = "Apache-2.0 OR MIT"
 repository = "https://github.com/linebender/piet"
 readme = "../README.md"
 edition = "2018"

piet-web/examples/basic/src/lib.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Basic example of rendering in the browser
 
 use wasm_bindgen::prelude::*;

piet-web/src/lib.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 // allows e.g. raw_data[dst_off + x * 4 + 2] = buf[src_off + x * 4 + 0];
 #![allow(clippy::identity_op)]
 #![deny(clippy::trivially_copy_pass_by_ref)]

piet-web/src/text.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Text functionality for Piet web backend
 
 mod grapheme;

piet-web/src/text/grapheme.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 use piet::HitTestPoint;
 use unicode_segmentation::UnicodeSegmentation;
 use web_sys::CanvasRenderingContext2d;

piet-web/src/text/lines.rs

@@ -1,3 +1,6 @@
+// Copyright 2020 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 // currently basically copied and pasted from cairo backend, except cairo::ScaledFont is replaced
 // by web_sys::CanvasRenderingContext2d
 //

piet/Cargo.toml

@@ -3,7 +3,7 @@ name = "piet"
 version = "0.6.2"
 authors = ["Raph Levien <[email protected]>"]
 description = "An abstraction for 2D graphics."
-license = "MIT/Apache-2.0"
+license = "Apache-2.0 OR MIT"
 repository = "https://github.com/linebender/piet"
 readme = "../README.md"
 edition = "2018"

piet/src/color.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! A simple representation of color
 
 use std::fmt::{Debug, Formatter};

piet/src/conv.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Conversions of fundamental numeric and geometric types.
 
 use kurbo::Vec2;

piet/src/error.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! The common error type for piet operations.
 
 use std::fmt;

piet/src/font.rs

@@ -1,3 +1,6 @@
+// Copyright 2020 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Font families, weights, etcetera
 
 use std::sync::Arc;

piet/src/gradient.rs

@@ -1,3 +1,6 @@
+// Copyright 2019 the Piet Authors
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
 //! Gradient specifications.
 //!
 //! We provide both linear and radial gradients; and for each flavor