ref: b167077706a38c4efcd2abb8c6a787ce5810ef16
dir: /bin/fproc_cache.rc/
#!/usr/bin/env rc
#. 9.rc # Not really needed when calling from werc, only would be needed if you use fproc_cache.rc standalone
# TODO: Allow to provide two arguments, second arg is a file name, use filename+size+mtime for hashing.
# Useful when dealing with many big files (eg., thumb gallery generation).
proc=$1
tmpfile=/tmp/fmttmp.$pid
score=`{{tee $tmpfile || exit 1} | sha1sum}
cachedir=/tmp/fproc_cache/$score
mkdir -p $cachedir >[2]/dev/null
if(test -s $cachedir/$proc)
cat $cachedir/$proc
if not
if($proc < $tmpfile | tee $cachedir/$pid)
mv $cachedir/$pid $cachedir/$proc
rm $tmpfile $cachedir/$pid >[2]/dev/null &