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-rw-r--r--doc/guix.texi17
1 files changed, 17 insertions, 0 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index 2ccba98092..ce8b977e1b 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -4990,6 +4990,23 @@ as in:
This is the declarative counterpart of @code{text-file*}.
@end deffn
+@deffn {Scheme Procedure} file-union @var{name} @var{files}
+Return a @code{<computed-file>} that builds a directory containing all of @var{files}.
+Each item in @var{files} must be a two-element list where the first element is the
+file name to use in the new directory, and the second element is a gexp
+denoting the target file. Here's an example:
+
+@example
+(file-union "etc"
+ `(("hosts" ,(plain-file "hosts"
+ "127.0.0.1 localhost"))
+ ("bashrc" ,(plain-file "bashrc"
+ "alias ls='ls --color'"))))
+@end example
+
+This yields an @code{etc} directory containing these two files.
+@end deffn
+
@deffn {Scheme Procedure} file-append @var{obj} @var{suffix} @dots{}
Return a file-like object that expands to the concatenation of @var{obj}
and @var{suffix}, where @var{obj} is a lowerable object and each