git-hooks: Initial commit

git-hooks/README.md

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+<!-- Copyright 2018 the authors. See the 'Copyright and license' section of the
+README.md file at the top-level directory of this repository.
+
+Licensed under the Apache License, Version 2.0 (the LICENSE-APACHE file) or
+the MIT license (the LICENSE-MIT file) at your option. This file may not be
+copied, modified, or distributed except according to those terms. -->
+
+# Git Hooks
+
+This directory contains hooks which git will execute at various times. To
+install the hooks, run `./install-hooks.sh`.

git-hooks/install-hooks.sh

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+#!/bin/bash
+
+# Copyright 2018 the authors. See the 'Copyright and license' section of the
+# README.md file at the top-level directory of this repository.
+#
+# Licensed under the Apache License, Version 2.0 (the LICENSE-APACHE file) or
+# the MIT license (the LICENSE-MIT file) at your option. This file may not be
+# copied, modified, or distributed except according to those terms.
+
+# source: http://stackoverflow.com/a/957978/836390
+ROOT=$(git rev-parse --show-toplevel) || exit 1
+
+if [ "$ROOT" == "" ]; then
+	echo "`git rev-parse --show-toplevel` returned empty root path" >&2
+	exit 1
+fi
+
+cd $ROOT/.git/hooks || exit 1
+
+ln -s ../../git-hooks/pre-commit.sh pre-commit || exit 1

git-hooks/pre-commit.sh

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+#!/bin/bash
+
+# Copyright 2018 the authors. See the 'Copyright and license' section of the
+# README.md file at the top-level directory of this repository.
+#
+# Licensed under the Apache License, Version 2.0 (the LICENSE-APACHE file) or
+# the MIT license (the LICENSE-MIT file) at your option. This file may not be
+# copied, modified, or distributed except according to those terms.
+
+echo "Executing pre-commit hooks..."
+
+# source: http://stackoverflow.com/a/957978/836390
+ROOT="$(git rev-parse --show-toplevel)" || exit 1
+
+if [ "$ROOT" == "" ]; then
+	echo "`git rev-parse --show-toplevel` returned empty root path" >&2
+	exit 1
+fi
+
+cd "$ROOT"
+
+function die {
+	if [ $# -eq 1 ]; then
+		rm "$1"
+	fi
+	echo "commit aborted" >&1
+	exit 1
+}
+
+echo "  Running ./test-scripts/check-copyright-comments.sh..."
+./test-scripts/check-copyright-comments.sh