initial commit

.githooks/pre-commit

@@ -0,0 +1,50 @@
+#!/usr/bin/env bash
+
+set -o errexit
+set -o nounset
+
+fail() {
+  echo "$1" >&2
+  exit 1
+}
+
+preflight() {
+  local cmd=$1
+  local msg="%s not found: install it or use the --no-verify flag for the git commit to avoid the running this pre-commit hook.\n"
+  command -v $cmd >/dev/null 2>&1 || fail \
+    "$(printf "$msg" $cmd)"
+}
+
+#
+# preflight checks
+#
+preflight terraform
+preflight yq
+
+# terraform fmt -check
+tf_files=($(git diff --cached --name-only --diff-filter=ACM -- '*.tf' '*.tfvars'))
+if [ ${#tf_files[@]} -gt 0 ]; then
+  # terraform fmt -check returns a non-zero exit status and list of files to be
+  # formatted: override that exit status so this entire script doesn't exit prematurely
+  output=$(printf '%s\n' "${tf_files[@]}" | xargs terraform fmt -check 2>&1 || true)
+  if [ -n "$output" ]; then
+    printf 'The following files are incorrectly formated: run `terraform fmt` to fix them.\n' >&2
+    fail $output
+  fi
+fi
+
+# yq eval                                                                                                                                                                  
+yaml_files=($(git diff --cached --name-only --diff-filter=ACM -- '*.yml' '*.yaml'))
+if [ ${#yaml_files[@]} -gt 0 ]; then
+  broken_files=()
+  for f in ${yaml_files[@]}; do
+    yq --exit-status 'tag == "!!map" or tag== "!!seq"' >/dev/null 2>&1 $f || broken_files+=($f)
+  done 
+  if [ ${#broken_files[@]} -gt 0 ]; then
+    echo 'The following files appear to contain invalid yaml:' >&2
+    fail "$(printf '%s\n' ${broken_files[@]})"
+#    echo 'The following files appear to contain invalid yaml:' >&2
+#  	printf '%s\n' ${broken_files[@]} >&2
+#	  exit 1
+  fi
+fi