[bitbake-devel] [PATCH] cooker: Drop package-depends.dot and pn-depends.dot generation

[Peter Kjellerstedt]

> -----Original Message-----
> From: bitbake-devel-bounces at lists.openembedded.org [mailto:bitbake-
> devel-bounces at lists.openembedded.org] On Behalf Of Peter Kjellerstedt
> Sent: den 30 januari 2017 11:19
> To: Paul Eggleton; Richard Purdie
> Cc: bitbake-devel at lists.openembedded.org
> Subject: Re: [bitbake-devel] [PATCH] cooker: Drop package-depends.dot
> and pn-depends.dot generation
> 
> > -----Original Message-----
> > From: Paul Eggleton [mailto:paul.eggleton at linux.intel.com]
> > Sent: den 25 januari 2017 20:17
> > To: Richard Purdie
> > Cc: bitbake-devel at lists.openembedded.org; Peter Kjellerstedt
> > Subject: Re: [bitbake-devel] [PATCH] cooker: Drop package-depends.dot
> > and pn-depends.dot generation
> >
> > On Wednesday, 25 January 2017 11:12:57 AM NZDT Richard Purdie wrote:
> > > On Wed, 2017-01-25 at 11:05 +0000, Peter Kjellerstedt wrote:
> > > > pn-dependes.dot when visualizing the dependencies between
> > > > packages. Even though task-depends.dot is more complete, trying 
> > > > to render it is near impossible given the sheer number of nodes 
> > > > and edges it contains. Already visualizing pn-depends.dot is hard 
> > > > but possible with some gvpr and tred filtering. Here are some 
> > > > statistics from one of my typical builds:
> > > >
> > > >                         Nodes  Edges
> > > >                         -----  ------
> > > > pn-depends.dot           1183   12087
> > > > package-depends.dot      5939   55615
> > > > task-depends.dot        13756  125870
> > > >
> > > > As can be seen, the number of nodes and edges in task-depends.dot
> > > > is a magnitude greater than in pn-depends.dot.
> > >
> > > Its certainly simpler, but the data is just plain buggy. I'm not
> > > sure I'd trust anything those files told me, even if they are 
> > > easier to view.
> > >
> > > I appreciate task-depends is hard to load graphically, it is
> > > helpful even as a text file though, I do use it a lot since 
> > > its a near direct dump of bitbake's internal parsed task 
> > > dependencies.
> >
> > What if we collapsed down task-depends.dot to PNs only in order to
> > produce pn-depends.dot? Then at least it would be reasonably
> > accurate.
> >
> > Cheers,
> > Paul
> 
> That would work for me at least.
> 
> //Peter

Another concern here is the depexp UI which I believe currently uses 
the same data that ends up in pn-depends.dot. (I noticed this the 
other day when I could not find a dependency in the depexp UI that I 
expected should be there, and based on the discussion in this mail 
thread then searched in task-depends.dot and found the dependency 
there as expected).

//Peter