scwrypts/zsh/redis/curl

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#!/bin/zsh
_DEPENDENCIES+=()
_REQUIRED_ENV+=()
source ${0:a:h}/common.zsh
#####################################################################
CURL_WITH_CACHE() {
[ ! $TTL ] && TTL=10
[[ $CACHE_ENABLED -eq 0 ]] && {
curl $@
return $?
}
local ARGS=()
local URL
while [[ $# -gt 0 ]]
do
case $1 in
-- ) shift 1 ;;
--*= ) ARGS+=($1); shift 1 ;;
--* ) ARGS+=($1 $2); shift 2 ;;
-* ) ARGS+=($1); shift 1 ;;
* ) URL=$1; break ;;
esac
done
local KEY=$(GET_URL_KEY $URL)
local OUTPUT=$(_REDIS get $KEY 2>&1)
[ $OUTPUT ] && {
[[ ${#ARGS[@]} -gt 0 ]] && __WARN "cache hit found; ignoring arguments ($ARGS)"
echo $OUTPUT
return
}
local OUTPUT=$(curl -s $@)
[ ! $OUTPUT ] && return 1
_REDIS set $KEY "$OUTPUT" >/dev/null
_REDIS expire $KEY $TTL >/dev/null
echo $OUTPUT
}
GET_URL_KEY() { echo "scwrypts:curl:$1" | sed 's/\s\+/+/g'; }
#####################################################################
CURL_WITH_CACHE $@