commit: 6ea40822c59d94513f80f8a6d14c125c8e9aec0c Author: Florian Schmaus <flow <AT> gentoo <DOT> org> AuthorDate: Thu Dec 23 19:19:10 2021 +0000 Commit: Ulrich Müller <ulm <AT> gentoo <DOT> org> CommitDate: Fri Jun 24 09:12:27 2022 +0000 URL: https://gitweb.gentoo.org/proj/devmanual.git/commit/?id=6ea40822
general-concepts/dependencies: add paragraph explaining example Add a small paragraph explaining the existing slot-operator example. This is scavenged from my proposed change for bug #739858. Signed-off-by: Florian Schmaus <flow <AT> gentoo.org> Bug: https://bugs.gentoo.org/739858 [Commits squashed; small fixes according to style guide.] Signed-off-by: Ulrich Müller <ulm <AT> gentoo.org> general-concepts/dependencies/text.xml | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/general-concepts/dependencies/text.xml b/general-concepts/dependencies/text.xml index 0ff903d..689fad0 100644 --- a/general-concepts/dependencies/text.xml +++ b/general-concepts/dependencies/text.xml @@ -421,6 +421,38 @@ RDEPEND="media-libs/cogl:1.0= gnutls? ( >=net-libs/gnutls-2.8:= )" </codesample> +<p> +means that only the '1.0' slot is acceptable for <c>media-libs/cogl</c> and +that sub-slot changes of <c>media-libs/cogl</c> will cause a rebuild of the +dependent package. It furthermore means that every slot of +<c>net-libs/gnutls</c> is acceptable but any slot change is causing a rebuild. +</p> + +<p> +The <c>:slot</c> dependency syntax continues to behave like in <c>EAPI=4</c> or +earlier, i.e. it indicates that only the specific slot value is acceptable and +that the package will not break when the currently installed version of the +dependency is replaced by a version with a different sub-slot. +</p> + +<p> +For example: +</p> + +<codesample lang="ebuild"> +RDEPEND="dev-libs/foo:2= + >=dev-libs/bar-0.9:= + media-gfx/baz:* + x11-misc/wombat:0" +</codesample> + +<p> +means that the package should be rebuilt when <c>foo:2</c> or +<c>>=bar-0.9</c> are upgraded to versions with different subslots. On the +other hand, changes in slot or sub-slots of <c>baz</c> should be ignored, and +sub-slot changes of <c>wombat:0</c> should be ignored. +</p> + </body> </subsubsection> </subsection>
