Re: [Orgmode] [patch] org-id: New org-id-method 'uuid' w/ elisp function that creates random uuid

2010-05-16 Thread David Maus
Carsten Dominik wrote:

 - `org-id-new' uses uuidgen if present and falls back to the elisp
   function otherwise

I like that.  WOuld you like to modify your patch accordingly?

Yes, I'll do that.  Just for the records: using the elisp function as
fall back for the external program changes the meaning of the
org-id-method uuidgen: It makes Org use UUIDs for the ID property and
the external program is the preferred method for doing this.  Hence
the symbol should better be 'uuid, not 'uuidgen.  So if there is a
list for backward incompatible changes for a further release (maybe
7.x) that are reasonable but not important this should go there.

HTH
 -- David
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Re: [Orgmode] [patch] org-id: New org-id-method 'uuid' w/ elisp function that creates random uuid

2010-05-16 Thread Carsten Dominik


On May 16, 2010, at 11:14 AM, David Maus wrote:


Carsten Dominik wrote:


- `org-id-new' uses uuidgen if present and falls back to the elisp
 function otherwise



I like that.  WOuld you like to modify your patch accordingly?


Yes, I'll do that.  Just for the records: using the elisp function as
fall back for the external program changes the meaning of the
org-id-method uuidgen: It makes Org use UUIDs for the ID property and
the external program is the preferred method for doing this.  Hence
the symbol should better be 'uuid, not 'uuidgen.  So if there is a
list for backward incompatible changes for a further release (maybe
7.x) that are reasonable but not important this should go there.


Yes.

But what I would like to to ask is this:

Make the change and tell people to use `uuid' as the setting.  But if  
a user has set it to uuidgen, be gentle and accept that setting as  
well, treat it like uuid.


Thanks!

- Carsten


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Re: [Orgmode] [patch] org-id: New org-id-method 'uuid' w/ elisp function that creates random uuid

2010-05-16 Thread David Maus
Carsten Dominik wrote:

On May 16, 2010, at 11:14 AM, David Maus wrote:

 Carsten Dominik wrote:

 - `org-id-new' uses uuidgen if present and falls back to the elisp
  function otherwise

 I like that.  WOuld you like to modify your patch accordingly?

 Yes, I'll do that.  Just for the records: using the elisp function as
 fall back for the external program changes the meaning of the
 org-id-method uuidgen: It makes Org use UUIDs for the ID property and
 the external program is the preferred method for doing this.  Hence
 the symbol should better be 'uuid, not 'uuidgen.  So if there is a
 list for backward incompatible changes for a further release (maybe
 7.x) that are reasonable but not important this should go there.

Yes.

But what I would like to to ask is this:

Make the change and tell people to use `uuid' as the setting.  But if
a user has set it to uuidgen, be gentle and accept that setting as
well, treat it like uuid.

Ah, yes, now I've got it.  Patch will be there, soon.

HTH
 -- David
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Re: [Orgmode] [patch] org-id: New org-id-method 'uuid' w/ elisp function that creates random uuid

2010-05-15 Thread Carsten Dominik


On May 8, 2010, at 4:14 PM, David Maus wrote:


Carsten Dominik wrote:

what is the difference/advantage of this idea over using uuidgen as
Org does now?


Well, it allows uuids without depending on the presence of the uuidgen
binary.  E.g. I happen to occasionally use computers I have no control
of and carry my Emacs/Org configuration with me.

Without the elisp function the ID properties of my headlines are in an
inconsistent format depending on whether uuidgen was present on the
machine I created the ID property or not.

It may be a little pedantic but I'd like to be specific in what format
the IDs have and like the idea of having IDs that follow an
established standard.

Maybe another usage of the function could be:

- org-id-method can be 'org for Org's id mechanism or 'uuid for uuids


I think it should be either uuidgen (for backward compatibility) or  
uuid.




- `org-id-new' uses uuidgen if present and falls back to the elisp
  function otherwise


I like that.  WOuld you like to modify your patch accordingly?

- Carsten


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Re: [Orgmode] [patch] org-id: New org-id-method 'uuid' w/ elisp function that creates random uuid

2010-05-08 Thread David Maus
Carsten Dominik wrote:
what is the difference/advantage of this idea over using uuidgen as
Org does now?

Well, it allows uuids without depending on the presence of the uuidgen
binary.  E.g. I happen to occasionally use computers I have no control
of and carry my Emacs/Org configuration with me.

Without the elisp function the ID properties of my headlines are in an
inconsistent format depending on whether uuidgen was present on the
machine I created the ID property or not.

It may be a little pedantic but I'd like to be specific in what format
the IDs have and like the idea of having IDs that follow an
established standard.

Maybe another usage of the function could be:

 - org-id-method can be 'org for Org's id mechanism or 'uuid for uuids

 - `org-id-new' uses uuidgen if present and falls back to the elisp
   function otherwise

Regards,
  -- David
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Re: [Orgmode] [patch] org-id: New org-id-method 'uuid' w/ elisp function that creates random uuid

2010-05-07 Thread Carsten Dominik

Hi David,

what is the difference/advantage of this idea over using uuidgen as  
Org does now?


Thanks.

- Carsten

On May 7, 2010, at 5:57 PM, David Maus wrote:


Attached patch for org-id adds a new function `org-id-uuid' that
returns a random (version 4) uuid following the format and suggestions
in RFC 4122:

 - it collects some random, system ans user specific data

 - creates a md5 hash for this data to obtain the require 32 octets

 - flips the correct bits to indicate a random uuid

Using the elisp method to create a random uuid can be customized by
setting `org-id-method' to 'uuid.

In addition `org-id-new' throws an error when the call to
`org-id-uuid-program' returns something that does not look like a
uuid.[1]

HTH
-- David


[1] Sorry, this should have been a patch on its own.

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- Carsten





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