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Diffstat (limited to 'doc/guix.texi')
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diff --git a/doc/guix.texi b/doc/guix.texi index 4ef2601579..20b5013fd9 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -3037,6 +3037,39 @@ the new and upgraded packages that are listed, some like @code{my-gimp} and @code{my-emacs-with-cool-features} might come from @code{my-personal-packages}, while others come from the Guix default channel. +@cindex dependencies, channels +@cindex meta-data, channels +@subsection Declaring Channel Dependencies + +Channel authors may decide to augment a package collection provided by other +channels. They can declare their channel to be dependent on other channels in +a meta-data file @file{.guix-channel}, which is to be placed in the root of +the channel repository. + +The meta-data file should contain a simple S-expression like this: + +@lisp +(channel + (version 0) + (dependencies + (channel + (name 'some-collection) + (url "https://example.org/first-collection.git")) + (channel + (name 'some-other-collection) + (url "https://example.org/second-collection.git") + (branch "testing")))) +@end lisp + +In the above example this channel is declared to depend on two other channels, +which will both be fetched automatically. The modules provided by the channel +will be compiled in an environment where the modules of all these declared +channels are available. + +For the sake of reliability and maintainability, you should avoid dependencies +on channels that you don't control, and you should aim to keep the number of +dependencies to a minimum. + @subsection Replicating Guix @cindex pinning, channels |