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#!/usr/bin/env bash
set -Eeuo pipefail
end="\033[0m"
red="\033[0;31m"
red() { echo -e "${red}${1}${end}"; }
## Constant definitions
JSON="${1:-}"
[[ -z "${JSON}" ]] && {
red 'Missing input JSON file.'
cat <<EOF
Usage:
$0 <SITE_JSON_PATH>
Arguments
SITE_JSON_PATH Path to the site.json file which contains data and metadata about pages of the site.
Examples:
$0 _site/site.json
$0 result/site.json
$0 \$(nix-build -A subtasks.docs)/site.json
EOF
exit 2
}
LANGS=(en pt fr)
IGNORED_PAGES=(site.json sitemap.xml *.atom)
## Helper function definitions
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 ${URL}." >&2
exit 1
}
get-lang() {
echo "${1}" | base64 --decode | jq -r .lang
}
get-ref() {
echo "${1}" | base64 --decode | jq -r .ref
}
get-url() {
# Remove leading / to match more closely the filesystem hierarchy
echo "${1}" | base64 --decode | jq -r .url | sed 's_^/__'
}
get-date() {
echo "${1}" | base64 --decode | jq -r .date
}
get-title() {
echo "${1}" | base64 --decode | jq -r .title
}
get-layout() {
echo "${1}" | base64 --decode | jq -r .layout
}
## Assertions
assert-frontmatter() {
F="$1"
DESIRED_LAYOUT="$2"
PREFIX="${3:-}"
LANG="$(get-lang "$F")"
REF="$(get-ref "$F")"
URL="$(get-url "$F")"
LAYOUT="$(get-layout "$F")"
[[ -z "${LANG}" ]] && fail-attr 'lang' "${URL}"
[[ -z "${REF}" ]] && fail-attr 'ref' "${URL}"
if ! contains-element "${URL}" "${IGNORED_PAGES[@]}"; then
TITLE="$(get-title "$F")"
[[ -z "${TITLE}" ]] && fail-attr 'title' "${URL}"
fi
if ! contains-element "${LANG}" "${LANGS[@]}"; then
red "Invalid lang '${LANG}' in ${URL}." >&2
exit 1
fi
if [[ "${DESIRED_LAYOUT}" != "${LAYOUT}" ]]; then
red "Layout mismatch: expected '${DESIRED_LAYOUT}', got '${LAYOUT}'."
red "Page: ${URL}."
exit 1
fi
if [[ -n "${PREFIX}" ]]; then
DATE="$(get-date "$F" | awk '{print $1}')"
URL_BASENAME="$(basename "$(get-url "$F")")"
FILE="${PREFIX}/${DATE}-${URL_BASENAME%.html}.md"
[[ -f "${FILE}" ]] || {
red "date/filename mismatch: '${FILE}' does not exist. To fix, run:"
echo " mv '${PREFIX}/${URL_BASENAME%.html}.md' '${FILE}'"
exit 1
}
fi
}
echo Linting articles... >&2
for article in $(jq -r '.articles[] | @base64' "${JSON}"); do
assert-frontmatter "$article" 'post' '_articles'
done
echo Linting pages... >&2
for page in $(jq -r '.pages[] | @base64' "${JSON}"); do
URL="$(get-url "$page")"
if ! contains-element "${URL}" "${IGNORED_PAGES[@]}"; then
assert-frontmatter "${page}" 'page'
fi
done
echo Linting pastebins... >&2
for pastebin in $(jq -r '.pastebins[] | @base64' "${JSON}"); do
assert-frontmatter "$pastebin" 'pastebin' '_pastebins'
done
echo Linting tils... >&2
for til in $(jq -r '.tils[] | @base64' "${JSON}"); do
assert-frontmatter "$til" 'post' '_tils'
done
echo Asserting unique refs... >&2
KNOWN_IDS=()
assert-unique-ref() {
for page in $1; do
URL="$(get-url "$page")"
if ! contains-element "${URL}" "${IGNORED_PAGES[@]}"; then
LANG="$(get-lang "$page")"
REF="$(get-ref "$page")"
ID="${LANG}:${REF}"
if contains-element "${ID}" "${KNOWN_IDS[@]}"; then
printf '%s\n' "${KNOWN_IDS[@]}"
red "Duplicated lang:ref match: '${ID}'." >&2
red "Page: ${URL}." >&2
exit 1
fi
KNOWN_IDS+=("${ID}") # printf '%s\n' "${KNOWN_IDS[@]}"
fi
done
}
assert-unique-ref "$(jq -r '.pages[] | @base64' "${JSON}")"
assert-unique-ref "$(jq -r '.articles[] | @base64' "${JSON}")"
assert-unique-ref "$(jq -r '.tils[] | @base64' "${JSON}")"
echo Done. >&2
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