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>>>>> On Tue, 26 Apr 2011, Ciaran McCreesh wrote: |
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>> Portage ignores self-blockers both in DEPEND and RDEPEND. |
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> Even strong blockers? |
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No, strongs blockers are honoured in this case. (Which is fine, since |
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the spec says "A strong block must not be ignored.") |
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Updated patch (I've added the word "weak") is included below. |
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> Also, what happens for packages that can't be rebuilt once they're |
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> installed (e.g. because they screw up and use stuff on / if it's |
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> there)? |
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Such packages should be fixed. But if someone really needs a DEPEND |
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blocker on the ebuild's version itself, he can use EAPI 2 or later and |
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a strong blocker. |
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> We've got this weird situation where DEPEND=!!self would prevent you |
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> from upgrading or downgrading, but wouldn't stop you from rebuilding |
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> the exact same version. That doesn't seem right. |
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> It seems weird that we're mandating that a package manager should |
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> just outright ignore bits of dependency variables. Maybe it would be |
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> better to mark it as undefined as to whether or not the package |
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> manager honours such a block (and tell people not to do it), and |
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> then for the next EAPI figure out the logical meaning and specify |
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> that? |
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I don't like adding such "undefined" bits in cases where portage |
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behaviour is well-defined. |
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Ulrich |
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From 5935aa87d46a97a72c8c032728f50a6ecbdf864d Mon Sep 17 00:00:00 2001 |
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From: Ulrich Mueller <ulm@g.o> |
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Date: Tue, 26 Apr 2011 19:10:51 +0200 |
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Subject: [PATCH] Clarify wording on self-blockers. |
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|
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--- |
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dependencies.tex | 2 +- |
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1 files changed, 1 insertions(+), 1 deletions(-) |
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|
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diff --git a/dependencies.tex b/dependencies.tex |
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index 362f6cc..f6318d8 100644 |
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--- a/dependencies.tex |
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+++ b/dependencies.tex |
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@@ -187,7 +187,7 @@ following exceptions: |
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\begin{compactitem} |
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\item Blocks on a package provided exclusively by the ebuild do not count. \label{provided-blocks} |
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-\item Blocks on the ebuild itself do not count. |
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+\item Weak blocks on the package version of the ebuild itself do not count. |
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\end{compactitem} |
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|
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\featurelabel{bang-strength} There are two strengths of block: weak and strong. A weak block may be |
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-- |
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1.7.5.rc1 |
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