[gentoo-dev] significance of output from emerge -ep

[gentoo-dev] significance of output from emerge -ep

[Nicolas Kaiser]

I'm having difficulties understanding why "emerge -ep" deprives me of
useful information about packages that are already installed, or in
different version.

Is there a special reason for --emptytree testing in this place?

TIA,
Nicolas


$ diff -u /usr/lib/portage/bin/emerge.orig /usr/lib/portage/bin/emerge
--- /usr/lib/portage/bin/emerge.orig    2002-10-01 14:22:44.000000000 +0200
+++ /usr/lib/portage/bin/emerge 2002-10-01 14:30:09.000000000 +0200
@@ -844,11 +844,9 @@
                        else:
                                if x[3]=="nomerge":
                                        continue
-                               #we need to use "--emptrytree" testing here rather than "empty" param testing because "empty"
-                               #param is used for -u, where you still *do* want to see when something is being upgraded.
-                               if (not "--emptytree" in myopts) and portage.db[x[1]]["vartree"].exists_specific(x[2]):
+                               if portage.db[x[1]]["vartree"].exists_specific(x[2]):
                                        addl="  "+yellow("R")+"  "
-                               elif (not "--emptytree" in myopts) and portage.db[x[1]]["vartree"].exists_specific_cat(x[2]):
+                               elif portage.db[x[1]]["vartree"].exists_specific_cat(x[2]):
                                        addl="   "+turquoise("U")+" "
                                else:
                                        addl=" "+green("N")+"   "




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Re: [gentoo-dev] significance of output from emerge -ep

[Stuart Bouyer]

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On 火, 2002-10-01 at 22:00, Nicolas Kaiser wrote:
> I'm having difficulties understanding why "emerge -ep" deprives me of
> useful information about packages that are already installed, or in
> different version.
> 
> Is there a special reason for --emptytree testing in this place?
> 
> TIA,
> Nicolas

You are asking emerge to pretend and "emptytree" install of a given
package, from emerge --help 

 --emptytree (-e short option)
         Virtually tweaks the tree of installed packages to only contain
         glibc, this is great to use together with --pretend. This makes
         it possible for developers to get a complete overview of the
         complete dependency tree of a certain package.

You are being "deprived" of information about installed packages,
because as far as emerge is concerned you have no installed packages
(except glibc) when you run emerge with the -e / --emptytree switch

Stuart



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[gentoo-dev] Re: significance of output from emerge -ep

[Nicolas Kaiser]

* Stuart Bouyer <stuart@palette.plala.or.jp> :
> On 火, 2002-10-01 at 22:00, Nicolas Kaiser wrote:
> > I'm having difficulties understanding why "emerge -ep" deprives me of
> > useful information about packages that are already installed, or in
> > different version.

> You are being "deprived" of information about installed packages,
> because as far as emerge is concerned you have no installed packages
> (except glibc) when you run emerge with the -e / --emptytree switch

Sure. The reason I was asking was that it seemed redundant to me to have
an "N" in every line.
But I think this comes from my perspective as a user, if I understand
correctly "-ep" is rather meant for someone maintaining the tree, to
check for blocking dependencies.
In this context I seem to be abusing this option for comparing package
versions along the dependencies in my local installation.

Thanks,
Nicolas

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