chore: license project with MIT License

Author: h4l

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021 Hal Blackburn
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Makefile

@@ -25,7 +25,7 @@ clean:
 > rm -rf .out
 .PHONY: clean
 
-lint:
+lint: ensure-licensed
 > deno lint
 .PHONY: lint
 
@@ -41,3 +41,15 @@ test:
 > deno test
 .PHONY: test
 
+ensure-licensed:
+> UNLICENSED="$$(\
+  find . -name '*.ts' -exec \
+    grep -FL '// Copyright 2021 Hal Blackburn. All rights reserved. MIT license.' {} + \
+    || test $$? -eq 1 \
+  )"
+> if [[ $$UNLICENSED != "" ]]; then
+>   echo -e "Error: Not all modules contain the copyright header:\n$$UNLICENSED" 2>&1
+>   exit 1
+> fi
+.PHONY: ensure-licensed
+.SILENT: ensure-licensed

_test_utils.ts

@@ -1,3 +1,5 @@
+// Copyright 2021 Hal Blackburn. All rights reserved. MIT license.
+
 import { assert, assertEquals } from "./dev_deps.ts";
 import { JSON_SEQ_END, JSON_SEQ_START } from "./mod.ts";
 

_test_utils_test.ts

@@ -1,3 +1,5 @@
+// Copyright 2021 Hal Blackburn. All rights reserved. MIT license.
+
 import { assertEquals } from "./dev_deps.ts";
 import { chunkify, enlargen } from "./_test_utils.ts";
 

dev_deps.ts

@@ -1,3 +1,4 @@
+// Copyright 2021 Hal Blackburn. All rights reserved. MIT license.
 export {
   assert,
   assertEquals,

mod.ts

@@ -1,3 +1,5 @@
+// Copyright 2021 Hal Blackburn. All rights reserved. MIT license.
+
 /* This module implements the text format, described in [RFC 7464], to
  * represent streams of individual JSON objects (application/json-seq). See
  * [format_notes.md](format_notes.md)

mod_test.ts

@@ -1,3 +1,5 @@
+// Copyright 2021 Hal Blackburn. All rights reserved. MIT license.
+
 import { assert, assertEquals } from "./dev_deps.ts";
 import {
   _jsonSeqDelimiterTransformer,