[bug#66500] [PATCH core-updates 2/3] gnu: docbook-dsssl: Refactor install-plan.

[Bruno Victal <mirai@makinata.eu>]

Replace custom phase with copy-build-system newly added #:output parameter.
Additionally remove extra slashes from license URIs and obsolete inputs.

* gnu/packages/docbook.scm (docbook-dsssl)[source]: Remove empty directories
from source using a snippet.
[arguments]<#:phases>: Relocate 'install-doc logic into …
<#:install-plan>: … here. Remove obsolete exclusion rules.
[native-inputs]: Remove bzip2 and tar since these are already available by
default.
[license]: Remove extraneous slash.
(docbook-dsssl-doc)[license]: Remove extraneous slash.
---
 gnu/packages/docbook.scm | 26 ++++++++++----------------
 1 file changed, 10 insertions(+), 16 deletions(-)

diff --git a/gnu/packages/docbook.scm b/gnu/packages/docbook.scm
index f7dff53808..07cb06059a 100644
--- a/gnu/packages/docbook.scm
+++ b/gnu/packages/docbook.scm
@@ -513,31 +513,25 @@ (define-public docbook-dsssl
                                   name "-" version ".tar.bz2"))
               (sha256
                (base32
-                "1g72y2yyc2k89kzs0lvrb9n7hjayw1hdskfpplpz97pf1c99wcig"))))
+                "1g72y2yyc2k89kzs0lvrb9n7hjayw1hdskfpplpz97pf1c99wcig"))
+              (snippet
+               #~(begin
+                   ;; Remove empty directories.
+                   (rmdir "doc")
+                   (rmdir "docsrc")))))
     (build-system copy-build-system)
     (outputs '("out" "doc"))
     (arguments
      (list
       #:install-plan
-      #~`(("./" "sgml/dtd/docbook/"
-           #:exclude ("doc" "docsrc")))
-      #:phases
-      #~(modify-phases %standard-phases
-          ;; The doc output contains 1.4 MiB of HTML documentation.
-          (add-after 'install 'install-doc
-            (lambda* (#:key inputs #:allow-other-keys)
-              (mkdir-p (string-append #$output:doc "/share/doc"))
-              (symlink (assoc-ref inputs "docbook-dsssl-doc")
-                       (format #f "~a/share/doc/~a-~a"
-                               #$output:doc #$name #$version)))))))
+      #~`(("./" "sgml/dtd/docbook/")
+          (#$(this-package-input "docbook-dsssl-doc") "./" #:output "doc"))))
     (inputs
      (list docbook-dsssl-doc))
-    (native-inputs
-     (list bzip2 tar))
     (home-page "https://docbook.org/")
     (synopsis "DSSSL style sheets for DocBook")
     (description "This package provides DSSSL style sheets for DocBook.")
-    (license (license:non-copyleft "file://README"))))
+    (license (license:non-copyleft "file:/README"))))
 
 ;;; Private variable, used as the 'doc' output of the docbook-dsssl package.
 (define docbook-dsssl-doc
@@ -560,7 +554,7 @@ (define docbook-dsssl-doc
     (home-page "https://docbook.org/")
     (synopsis "DocBook DSSSL style sheets documentation")
     (description "Documentation for the DocBook DSSSL style sheets.")
-    (license (license:non-copyleft "file://doc/LEGALNOTICE.htm"))))
+    (license (license:non-copyleft "file:/doc/LEGALNOTICE.htm"))))
 
 (define-public docbook-sgml-4.2
   (package
-- 
2.41.0