[erlang-questions] Feedback wanted: Remove compilation times from BEAM files in OTP 19?

[Serge Aleynikov]

​Thank you!

I updated the
https://github.com/saleyn/util/blob/master/src/user_default.erl per your
suggestion.

On Fri, Apr 8, 2016 at 8:54 AM, Björn Gustavsson <bjorn@REDACTED> wrote:

> On Fri, Apr 8, 2016 at 2:28 PM, Serge Aleynikov <serge@REDACTED>
> wrote:
> > I've been relying on module's compilation time for figuring out the
> changed
> > modules (see below).
> >
> > In the absence of {time, CompileTime}, would there be a way to determine
> the
> > modification time stamp of the file at the time it was loaded by code
> > loader?
>
> Yes. Use Mod:module_info(md5) to calculate MD5 for
> the loaded module and compare it to beam_lib:md5(Mod).
>
> Example:
>
> 13> c:module_info(md5).
> <<79,26,188,243,168,60,58,45,34,69,19,222,138,190,214,118>>
> 14> beam_lib:md5(code:which(c)).
> {ok,{c,<<79,26,188,243,168,60,58,45,34,69,19,222,138,
>          190,214,118>>}}
>
> /Bjorn
>
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