From d21c851f8ea266a1adb37cba4be066e8bac7e44a Mon Sep 17 00:00:00 2001
From: Chase Pierce <syntaqx@gmail.com>
Date: Wed, 27 Mar 2019 03:46:43 -0600
Subject: [PATCH] first commit

---
 .pre-commit-hooks.yml             |  6 ++++++
 LICENSE                           | 21 +++++++++++++++++++++
 README.md                         | 23 +++++++++++++++++++++++
 hooks/circleci-config-validate.sh | 29 +++++++++++++++++++++++++++++
 4 files changed, 79 insertions(+)
 create mode 100644 .pre-commit-hooks.yml
 create mode 100644 LICENSE
 create mode 100644 README.md
 create mode 100644 hooks/circleci-config-validate.sh

diff --git a/.pre-commit-hooks.yml b/.pre-commit-hooks.yml
new file mode 100644
index 0000000..863b62f
--- /dev/null
+++ b/.pre-commit-hooks.yml
@@ -0,0 +1,6 @@
+- id: circleci-config-validate
+  name: CircleCI config validator
+  description: Validates CircleCI configuration files locally
+  entry: hooks/circleci-config-validate.sh
+  language: [script]
+  files: ^.circleci/config.ya?ml$
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..92fdbde
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Chase Pierce <syntaqx@gmail.com>
+
+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.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..8473ca7
--- /dev/null
+++ b/README.md
@@ -0,0 +1,23 @@
+# git-hooks
+
+[pre-commit]: http://pre-commit.com/
+
+A collection of useful Git hooks for integration with [pre-commit][].
+
+## Usage
+
+Create or append to your `.pre-commit-config.yml` configuration:
+
+```yaml
+- repo: https://github.com/syntaqx/git-hooks
+  hooks:
+    - id: circleci-config-validate
+```
+
+Then simply install or run the checks on-demand as desired.
+
+## License
+
+[MIT]: https://opensource.org/licenses/MIT
+
+`git-hooks` is open source software released under the [MIT license][MIT].
diff --git a/hooks/circleci-config-validate.sh b/hooks/circleci-config-validate.sh
new file mode 100644
index 0000000..12dd2f1
--- /dev/null
+++ b/hooks/circleci-config-validate.sh
@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+
+# Test if the CircleCI config file is well formed via the circleci local cli.
+# https://circleci.com/docs/2.0/local-cli/
+# https://circleci.com/blog/circleci-hacks-validate-circleci-config-on-every-commit-with-a-git-hook/
+
+set -o errexit
+set -o pipefail
+set -o nounset
+
+readonly DEBUG=${DEBUG:-unset}
+[[ $DEBUG != unset ]] && set -x
+
+# assert the circleci command exists
+if ! [ -x "$(command -v circleci)" ]; then
+    echo 'circleci command not found'
+    echo 'See https://circleci.com/docs/2.0/local-cli/ for installation instructions.'
+    exit 1
+fi
+
+# The following is needed by the circleci local build tool (due to Docker interactivity)
+exec < /dev/tty
+
+# If validation fails, tell Git to stop and provide error message. Otherwise, continue.
+if ! msg=$(circleci config validate); then
+	echo "CircleCI Configuration Failed Validation."
+	echo "$msg"
+	exit 1
+fi