Md5 hash or similar in SU Ruby?

thomthom

I'm trying to find a hashing method similar to md5 in SU Ruby, but haven't found any.
Is there none?

Anyone got any suggestions?

It's for generating unique IDs.

tbd

also TIG said sometime ago about using Time.now + random

thomthom

I was thinking of using a timestamp + entityID. And I thought I'd try to hash it.

thomthom

That GUID article looks like it will do the trick.

cheers!

thomthom

Anyone has some info on what hashing method Ruby's String.hash uses?

I'm looking at using this: "#{e.entityID}#{Time.now.to_i}".hash - but I'm not sure if I should just skip the .hash bit.

Dan Rathbun

There is a md5.so in the digest library. Don't know what Ruby digests are used for. (The CHM has no info.)

Dan Rathbun

There was a link on the GUID article to a add-on Ruby UUID generator library.

thomthom

Yea, I looked at that article. It seemed to require a few modules that doesn't ship with SU.

Ricounet

Hello!

I know this post is really old.
But for reference purposes, I found a pure Ruby implementation of MD5 there:
http://d.hatena.ne.jp/zakinco/20091030/p1

Just copy the Purerubymd5 module in your script or a library file.
Purerubymd5.hexdigest("abc")
is then available from Sketchup Ruby.

Dan Rathbun

Personally I have just used a Ruby %x call using the fciv.exe command line checksum utility that I believe came with the Windows Support Tools.