105 lines
2.9 KiB
Bash
105 lines
2.9 KiB
Bash
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#!/bin/sh
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set -eu
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if [ "$#" -lt 2 ] ; then
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echo "Usage: $0 <base domain> <emoji pack name> [<conditional addition>]" >&2
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exit 2
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fi
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DOMAIN="$1"
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CATEGORY="$2"
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ADDCOND="${3:-}"
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OVERWRITE_IMG="${OVERWRITE_IMG:-NO}"
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OVERWRITE_METAKEYS="${OVERWRITE_METAKEYS:-NO}"
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json_str_escape() {
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echo "$1" | sed -e 's/"/\\"/g'
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}
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CACHE_DIR="$(dirname "$0")"/.cache
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cached_list="$CACHE_DIR"/"$(date -I)_${DOMAIN}"
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if [ ! -e "$cached_list" ] ; then
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mkdir -p "$CACHE_DIR"
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curl https://"$DOMAIN"/api/v1/custom_emojis | jq > "$cached_list"
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fi
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# Track additions in "pack.json".files format
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META_ADD="$(mktemp)"
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meta_prefix="{"
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# @tsv doesn't actually directly produce TSV, but for each line a string which escapes tabs as \t...
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cat "$cached_list" \
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| jq '.[] | select(.category == "'"$CATEGORY"'"'"${ADDCOND:+ }${ADDCOND}"') | [.shortcode, .static_url] | @tsv' \
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| awk '1 {gsub(/^"|"$/, ""); sub(/\\t/, "\t"); print}' \
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| while IFS="$(printf '\t')" read -r name url; do
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urlfile="$(basename "$url")"
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ext="${urlfile##*.}";
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if [ "$ext" = "$urlfile" ] ; then
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ext=""
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fi
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if [ "$name" != "$(basename "$name")" ] ; then
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echo "ERROR: unsafe, potentially malicious shortcode '$name'; aborting!"
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exit 1
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fi
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out="${name}${ext:+.}${ext}"
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if [ "$OVERWRITE_IMG" = "YES" ] || [ ! -e "$out" ] ; then
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echo "Downloading $out ..."
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wget --quiet --output-document="$out" "$url"
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printf '%s\n\t"%s": "%s"' "$meta_prefix" \
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"$(json_str_escape "$name")" "$(json_str_escape "$out")" \
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>> "$META_ADD"
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meta_prefix=","
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fi
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done
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if [ "$meta_prefix" = "{" ] ; then
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echo "No emoji matched search criteria"
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rm "$META_ADD"
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exit 0
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fi
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printf '\n}\n' >> "$META_ADD"
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cnt_dl="$(jq '. | length' "$META_ADD")"
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echo "Finished downloading $cnt_dl images."
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if [ ! -e pack.json ] ; then
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printf '{"files": {}, "files_count": 0, "pack": {"description": "%s: %s%s%s"}}' \
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"$(json_str_escape "$DOMAIN")" \
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"$(json_str_escape "$CATEGORY")" \
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"${ADDCOND:+ }" \
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"$(json_str_escape "$ADDCOND")" \
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> pack.json
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fi
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cnt_old="$(jq '.files | length' pack.json)"
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echo "Found $cnt_old preëxisting emoji."
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new_files="$(
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if [ "$OVERWRITE_METAKEYS" = "YES" ] ; then
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jq --sort-keys -s '.[0].files + .[1]' pack.json "$META_ADD"
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else
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jq --sort-keys -s '.[0] + .[1].files' "$META_ADD" pack.json
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fi
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)"
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echo "$new_files" > "$META_ADD"
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cnt_new="$(jq '. | length' "$META_ADD")"
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cnt_diff=$((cnt_new - cnt_old))
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echo "After merging there are a total of $cnt_new emoji."
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if [ "$cnt_diff" != "$cnt_dl" ] ; then
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echo "WARNING: expected a gain of $cnt_dl but got $cnt_diff additional entries!"
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echo " (the existing pack may not follow the expected filename scheme)"
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fi
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jq --argjson new_files "$new_files" \
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--arg cnt_new "$cnt_new" \
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'.files = $new_files | .files_count = $cnt_new' \
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pack.json \
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> "$META_ADD"
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mv "$META_ADD" pack.json
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