add license headers

Cargo.toml

@@ -1,6 +1,10 @@
 [package]
 name = "fsst-rs"
 version = "0.0.1"
+description = "Pure-Rust implementation of Fast Static Symbol Tables algorithm for string compression"
+authors = ["SpiralDB Developers <[email protected]>"]
+license = "Apache-2.0"
+repository = "https://github.com/spiraldb/fsst"
 edition = "2021"
 
 [lints.rust]

src/builder.rs

@@ -1,3 +1,17 @@
+// Copyright 2024 Spiral, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 //! Functions and types used for building a [`SymbolTable`] from a corpus of text.
 //!
 //! This module implements the logic from Algorithm 3 of the [FSST Paper].

src/lib.rs

@@ -1,3 +1,17 @@
+// Copyright 2024 Spiral, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 #![doc = include_str!("../README.md")]
 use std::fmt::{Debug, Formatter};
 

src/longest.rs

@@ -1,3 +1,17 @@
+// Copyright 2024 Spiral, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 use crate::{Code, SymbolTable};
 
 /// Find the longest substring.