nixo
/
guix-devel
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

doc: Move 'text-file*' to the gexp section. 

This is a follow-up to commit 462a3fa.

* doc/guix.texi (The Store Monad): Move 'text-file*'...
  (G-Expressions): ... to here.
master
Ludovic Courtès 2015-01-14 11:22:51 +01:00
parent 1c975f60b1
commit 1ed194646b
1 changed files with 25 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
doc/guix.texi
View File

@ -2255,31 +2255,6 @@ Return as a monadic value the absolute file name in the store of the file
containing @var{text}, a string.
@end deffn
@deffn {Monadic Procedure} text-file* @var{name} @var{text} @dots{}
Return as a monadic value a derivation that builds a text file
containing all of @var{text}. @var{text} may list, in addition to
strings, packages, derivations, and store file names; the resulting
store file holds references to all these.
This variant should be preferred over @code{text-file} anytime the file
to create will reference items from the store. This is typically the
case when building a configuration file that embeds store file names,
like this:
@example
(define (profile.sh)
;; Return the name of a shell script in the store that
;; initializes the 'PATH' environment variable.
(text-file* "profile.sh"
"export PATH=" coreutils "/bin:"
grep "/bin:" sed "/bin\n"))
@end example
In this example, the resulting @file{/gnu/store/@dots{}-profile.sh} file
will references @var{coreutils}, @var{grep}, and @var{sed}, thereby
preventing them from being garbage-collected during its lifetime.
@end deffn
@deffn {Monadic Procedure} interned-file @var{file} [@var{name}] @
[#:recursive? #t]
Return the name of @var{file} once interned in the store. Use
@ -2563,6 +2538,31 @@ The resulting file holds references to all the dependencies of @var{exp}
or a subset thereof.
@end deffn
@deffn {Monadic Procedure} text-file* @var{name} @var{text} @dots{}
Return as a monadic value a derivation that builds a text file
containing all of @var{text}. @var{text} may list, in addition to
strings, packages, derivations, and store file names; the resulting
store file holds references to all these.
This variant should be preferred over @code{text-file} anytime the file
to create will reference items from the store. This is typically the
case when building a configuration file that embeds store file names,
like this:
@example
(define (profile.sh)
;; Return the name of a shell script in the store that
;; initializes the 'PATH' environment variable.
(text-file* "profile.sh"
"export PATH=" coreutils "/bin:"
grep "/bin:" sed "/bin\n"))
@end example
In this example, the resulting @file{/gnu/store/@dots{}-profile.sh} file
will references @var{coreutils}, @var{grep}, and @var{sed}, thereby
preventing them from being garbage-collected during its lifetime.
@end deffn
Of course, in addition to gexps embedded in ``host'' code, there are
also modules containing build tools. To make it clear that they are
meant to be used in the build stratum, these modules are kept in the