DIY Atom feed

1 files changed, 85 insertions, 0 deletions

diff --git a/scripts/assert-content.sh b/scripts/assert-content.sh
new file mode 100755
index 0000000..a55e9b0
--- /dev/null
+++ b/scripts/assert-content.sh
@@ -0,0 +1,85 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+JSON="${1:-}"
+[[ -z "${JSON}" ]] && {
+  echo 'Missing input JSON file.'
+  exit 2
+}
+
+contains-element() {
+  local e match="$1"
+  shift
+  for e; do [[ "$e" == "$match" ]] && return 0; done
+  return 1
+}
+
+fail-attr() {
+  ATTRIBUTE="${1}"
+  URL="${2}"
+  red "Undefined '${ATTRIBUTE}' for ${URL}." >&2
+  exit 1
+}
+
+LANGS=(en pt)
+assert-frontmatter() {
+  F="${1}"
+  LANG="$(echo "$F" | base64 --decode | jq -r .lang)"
+  REF="$(echo "$F"  | base64 --decode | jq -r .ref)"
+  URL="$(echo "$F"  | base64 --decode | jq -r .url)"
+  [[ -z "${LANG}" ]] && fail-attr 'lang' "${URL}"
+  [[ -z "${REF}" ]]  && fail-attr 'ref'  "${URL}"
+  set +e
+  contains-element "${LANG}" "${LANGS[@]}"
+  [[ $? != 0 ]] && {
+    red "Invalid lang '${LANG}' in ${URL}." >&2
+    exit 1
+  }
+  set -e
+  :
+}
+
+echo Linting posts... >&2
+for post in $(jq -r '.posts[] | @base64' "${JSON}"); do
+  assert-frontmatter "${post}"
+done
+
+echo Linting pages... >&2
+IGNORED_PAGES=(/site.json /sitemap.xml)
+for page in $(jq -r '.pages[] | @base64' "${JSON}"); do
+  URL="$(echo "$page"  | base64 --decode | jq -r .url)"
+  set +e
+  contains-element "${URL}" "${IGNORED_PAGES[@]}"
+  if [[ $? != 0 ]]; then
+    set -e
+    assert-frontmatter "${page}"
+  fi
+  set -e
+done
+
+echo Asserting unique refs... >&2
+KNOWN_IDS=()
+for page in $(jq -r '.pages[] | @base64' "${JSON}"); do
+  URL="$(echo "$page"  | base64 --decode | jq -r .url)"
+  set +e
+  contains-element "${URL}" "${IGNORED_PAGES[@]}"
+  if [[ $? != 0 ]]; then
+    set -e
+    LANG="$(echo "$page" | base64 --decode | jq -r .lang)"
+    REF="$(echo "$page"  | base64 --decode | jq -r .ref)"
+    ID="${LANG}:${REF}"
+
+    set +e
+    contains-element "${ID}" "${KNOWN_IDS[@]}"
+    [[ $? == 0 ]] && {
+      red "Duplicated lang:ref match: '${ID}'." >&2
+      exit 1
+    }
+    set -e
+
+    KNOWN_IDS+=("${ID}") # printf '%s\n' "${KNOWN_IDS[@]}"
+  fi
+  set -e
+done
+
+echo Done. >&2