mirror of https://github.com/limosek/zaf.git
60 lines
1.1 KiB
Bash
60 lines
1.1 KiB
Bash
# Zaf cache related functions
|
|
|
|
zaf_cache_init(){
|
|
[ -n "$ZAF_CACHE_DIR" ] && rm -rf "$ZAF_CACHE_DIR"
|
|
mkdir -p "$ZAF_CACHE_DIR"
|
|
}
|
|
|
|
# Get cache key from requested param
|
|
zaf_cachekey(){
|
|
echo "$1" | md5sum - | cut -d ' ' -f 1
|
|
}
|
|
|
|
# Put object into cache
|
|
# $1 key
|
|
# $2 value
|
|
# $3 lifetime in seconds
|
|
zaf_tocache(){
|
|
local key
|
|
local value
|
|
local lifetime
|
|
key=$(zaf_cachekey "$1")
|
|
echo "$2" >$ZAF_CACHE_DIR/$key
|
|
touch -m -d "$3 seconds" $ZAF_CACHE_DIR/$key.tme
|
|
}
|
|
|
|
# Put object into cache from stdin and copy to stdout
|
|
# $1 key
|
|
# $2 lifetime in seconds
|
|
zaf_tocache_stdin(){
|
|
local key
|
|
local lifetime
|
|
|
|
key=$(zaf_cachekey "$1")
|
|
cat >$ZAF_CACHE_DIR/$key
|
|
touch -m -d "$3 seconds" $ZAF_CACHE_DIR/$key.tme
|
|
cat $ZAF_CACHE_DIR/$key
|
|
}
|
|
|
|
# Get object from cache
|
|
# $1 key
|
|
zaf_fromcache(){
|
|
local key
|
|
local value
|
|
key=$(zaf_cachekey "$1")
|
|
if [ -f $ZAF_CACHE_DIR/$key ]; then
|
|
if [ "$ZAF_CACHE_DIR/$key.tme" -nt "$ZAF_CACHE_DIR/$key" ]; then
|
|
zaf_trc "Cache: serving $1($key) from cache"
|
|
cat $ZAF_CACHE_DIR/$key
|
|
else
|
|
zaf_trc "Cache: removing old entry $1"
|
|
rm -f "$ZAF_CACHE_DIR/$key*"
|
|
return 2
|
|
fi
|
|
else
|
|
zaf_trc "Cache: missing entry $1($key)"
|
|
return 1
|
|
fi
|
|
}
|
|
|