[bug#41689] Add cl-rdkafka

[Katherine Cox-Buday <cox.katherine.e@gmail.com>]

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That is a mistake; there's no reason it can't be listed as a regular input.

During my tests to confirm this, I realized that sbcl-cl-rdkafka
wasn't actually producing any useful output. This led me down a
rabbit-hole (albeit a productive one). Below is a new patch set.

11:23 kate says: guix refresh -l sbcl-lparallel
Building the following 4 packages would ensure 8 dependent packages
are rebuilt: ecl-cl-rdkafka@1.0.2 cl-rdkafka@1.0.2
cl-random-forest@0.1-0.85fbdd4 next@1.5.0

All dependent packages continue to build.

On Fri, Jun 5, 2020 at 9:01 AM Guillaume Le Vaillant <glv@posteo.net> wrote:
>
>
> Hi,
>
> Katherine Cox-Buday <cox.katherine.e@gmail.com> skribis:
>
> > (propagated-inputs
> >  `(("librdkafka" ,librdkafka)))
>
> Why is the librdkafka library a propagated input instead of a regular
> input?

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From 0a785df42a9c4c2693a1e952d3e253a0d8a552cb Mon Sep 17 00:00:00 2001
From: Katherine Cox-Buday <cox.katherine.e@gmail.com>
Date: Wed, 3 Jun 2020 09:33:57 -0500
Subject: [PATCH 2/2] gnu: Add cl-rdkafka.

* gnu/packages/lisp-xyz.scm (sbcl-cl-rdkafka, cl-rdkafka, ecl-rdkafka):
  New variable.
---
 gnu/packages/lisp-xyz.scm | 51 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/gnu/packages/lisp-xyz.scm b/gnu/packages/lisp-xyz.scm
index b47d80b108..e9dbad7ce8 100644
--- a/gnu/packages/lisp-xyz.scm
+++ b/gnu/packages/lisp-xyz.scm
@@ -11566,3 +11566,54 @@ accompaniment to the standard ANSI facilities.")
 
 (define-public cl-osicat
   (sbcl-package->cl-source-package sbcl-osicat))
+
+(define-public sbcl-cl-rdkafka
+  (package
+    (name "sbcl-cl-rdkafka")
+    (version "1.0.2")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/SahilKang/cl-rdkafka.git")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32
+         "1qcgfd4h7syilzmrmd4z2vknbvawda3q3ykw7xm8n381syry4g82"))))
+    (build-system asdf-build-system/sbcl)
+    (arguments
+     `(#:tests? #f              ; Attempts to connect to locally running Kafka
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'fix-paths
+           (lambda* (#:key inputs #:allow-other-keys)
+             (substitute* "src/low-level/librdkafka-bindings.lisp"
+               (("librdkafka" all)
+                (string-append (assoc-ref inputs "librdkafka") "/lib/"
+                               all)))))
+         (add-before 'cleanup 'move-bundle
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (actual (string-append out "/lib/sbcl/src/cl-rdkafka.fasl"))
+                    (expected (string-append
+                               out "/lib/sbcl/cl-rdkafka--system.fasl")))
+               (copy-file actual expected)
+               #t))))))
+    (inputs
+     `(("cffi" ,sbcl-cffi)
+       ("cffi" ,sbcl-cffi-grovel)
+       ("trivial-garbage" ,sbcl-trivial-garbage)
+       ("bordeaux-threads" ,sbcl-bordeaux-threads)
+       ("lparallel" ,sbcl-lparallel)
+       ("librdkafka" ,librdkafka)))
+    (home-page "https://github.com/SahilKang/cl-rdkafka")
+    (synopsis "Common Lisp client library for Apache Kafka")
+    (description "A Common Lisp client library for Apache Kafka.")
+    (license license:gpl3)))
+
+(define-public cl-rdkafka
+  (sbcl-package->cl-source-package sbcl-cl-rdkafka))
+
+(define-public ecl-cl-rdkafka
+  (sbcl-package->ecl-package sbcl-cl-rdkafka))
-- 
2.26.2


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From bfa07340a29c6e028584380f317c6c90d4529d00 Mon Sep 17 00:00:00 2001
From: Katherine Cox-Buday <cox.katherine.e@gmail.com>
Date: Sat, 6 Jun 2020 11:18:00 -0500
Subject: [PATCH 1/2] gnu: lparallel: Modify system definition to require
 sb-cltl2

* gnu/packages/lisp-xyz.scm (sbcl-lparallel):
  Modify system definition to require sb-cltl2.
---
 gnu/packages/lisp-xyz.scm | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/gnu/packages/lisp-xyz.scm b/gnu/packages/lisp-xyz.scm
index b78eec7f4d..b47d80b108 100644
--- a/gnu/packages/lisp-xyz.scm
+++ b/gnu/packages/lisp-xyz.scm
@@ -3197,6 +3197,17 @@ WebKit browsing engine.")
      `(("alexandria" ,sbcl-alexandria)
        ("bordeaux-threads" ,sbcl-bordeaux-threads)
        ("trivial-garbage" ,sbcl-trivial-garbage)))
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'fix-dependency
+           ;; lparallel loads a SBCL specific system in its asd file. This is
+           ;; not carried over into the fasl which is generated. In order for
+           ;; it to be carried over, it needs to be listed as a dependency.
+           (lambda _
+             (substitute* "lparallel.asd"
+               ((":depends-on \\(:alexandria" all)
+                (string-append all " #+sbcl :sb-cltl2"))))))))
     (home-page "https://lparallel.org/")
     (synopsis "Parallelism for Common Lisp")
     (description
-- 
2.26.2