Add 'backend' header arg to clojure code blocks

Add 'backend' header arg to clojure code blocks

[Chris Clark]

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This is my first attempt to contribute to org-mode; please let me know if
I'm doing something wrong.

Attached is a patch to incorporate some of the changes that were originally
presented by Ag Ibragimov here:
https://list.orgmode.org/m2y2oimdjf.fsf@gmail.com/. I've been using these
changes locally for a long time, and I'm hoping others might benefit!

For example:

   #+header: :backend babashka
   #+begin_src clojure
     (range 3)
   #+end_src

   #+RESULTS:
   : (0 1 2)

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From cc72dcac3075be76e3edcfee75c887272e48698c Mon Sep 17 00:00:00 2001
From: Chris Clark <cfclrk@gmail.com>
Date: Sat, 8 Oct 2022 05:41:20 -0400
Subject: [PATCH] ob-clojure.el: Add a 'backend' header arg to clojure code
 blocks

* ob-clojure.el (org-babel-header-args:clojure,
org-babel-execute:clojure): Add a 'backend' header arg that can
override the configured `org-babel-clojure-backend`.
---
 lisp/ob-clojure.el | 53 ++++++++++++++++++++++++++--------------------
 1 file changed, 30 insertions(+), 23 deletions(-)

diff --git a/lisp/ob-clojure.el b/lisp/ob-clojure.el
index dc72eb049..24a5ab34a 100644
--- a/lisp/ob-clojure.el
+++ b/lisp/ob-clojure.el
@@ -68,7 +68,10 @@
 (add-to-list 'org-babel-tangle-lang-exts '("clojurescript" . "cljs"))
 
 (defvar org-babel-default-header-args:clojure '())
-(defvar org-babel-header-args:clojure '((ns . :any) (package . :any)))
+(defvar org-babel-header-args:clojure
+  '((ns . :any)
+    (package . :any)
+    (backend . ((inf-clojure cider slime babashka nbb)))))
 (defvar org-babel-default-header-args:clojurescript '())
 (defvar org-babel-header-args:clojurescript '((package . :any)))
 
@@ -253,28 +256,32 @@
      "")))
 
 (defun org-babel-execute:clojure (body params)
-  "Execute a block of Clojure code with Babel."
-  (unless org-babel-clojure-backend
-    (user-error "You need to customize org-babel-clojure-backend"))
-  (let* ((expanded (org-babel-expand-body:clojure body params))
-	 (result-params (cdr (assq :result-params params)))
-	 result)
-    (setq result
-	  (cond
-	   ((eq org-babel-clojure-backend 'inf-clojure)
-	    (ob-clojure-eval-with-inf-clojure expanded params))
-           ((eq org-babel-clojure-backend 'babashka)
-	    (ob-clojure-eval-with-babashka ob-clojure-babashka-command expanded))
-           ((eq org-babel-clojure-backend 'nbb)
-	    (ob-clojure-eval-with-babashka ob-clojure-nbb-command expanded))
-	   ((eq org-babel-clojure-backend 'cider)
-	    (ob-clojure-eval-with-cider expanded params))
-	   ((eq org-babel-clojure-backend 'slime)
-	    (ob-clojure-eval-with-slime expanded params))))
-    (org-babel-result-cond result-params
-      result
-      (condition-case nil (org-babel-script-escape result)
-	(error result)))))
+  "Execute the BODY block of Clojure code with PARAMS using Babel."
+  (let* ((backend-override (cdr (assq :backend params)))
+         (org-babel-clojure-backend
+          (cond
+           (backend-override (intern backend-override))
+           (org-babel-clojure-backend org-babel-clojure-backend)
+           (t (user-error "You need to customize org-babel-clojure-backend")))))
+    (let* ((expanded (org-babel-expand-body:clojure body params))
+	   (result-params (cdr (assq :result-params params)))
+	   result)
+      (setq result
+	    (cond
+	     ((eq org-babel-clojure-backend 'inf-clojure)
+	      (ob-clojure-eval-with-inf-clojure expanded params))
+             ((eq org-babel-clojure-backend 'babashka)
+	      (ob-clojure-eval-with-babashka ob-clojure-babashka-command expanded))
+             ((eq org-babel-clojure-backend 'nbb)
+	      (ob-clojure-eval-with-babashka ob-clojure-nbb-command expanded))
+	     ((eq org-babel-clojure-backend 'cider)
+	      (ob-clojure-eval-with-cider expanded params))
+	     ((eq org-babel-clojure-backend 'slime)
+	      (ob-clojure-eval-with-slime expanded params))))
+      (org-babel-result-cond result-params
+        result
+        (condition-case nil (org-babel-script-escape result)
+	  (error result))))))
 
 (defun org-babel-execute:clojurescript (body params)
   "Evaluate BODY with PARAMS as ClojureScript code."
-- 
2.38.0

Re: Add 'backend' header arg to clojure code blocks

[Christopher M. Miles]

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+1

Chris Clark <cfclrk@gmail.com> writes:

> This is my first attempt to contribute to org-mode; please let me know if I'm doing something wrong.
>
> Attached is a patch to incorporate some of the changes that were originally presented by Ag Ibragimov
> here: https://list.orgmode.org/m2y2oimdjf.fsf@gmail.com/. I've been using these changes locally for a long
> time, and I'm hoping others might benefit!
>
> For example:
>
>    #+header: :backend babashka
>    #+begin_src clojure
>      (range 3)
>    #+end_src
>
>    #+RESULTS:
>    : (0 1 2)
>
> [6. text/x-patch; 0001-ob-clojure.el-Add-a-backend-header-arg-to-clojure-co.patch]...


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I try to make every word tell the meaning that I want to express without misunderstanding.

Blog: https://stardiviner.github.io/
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Re: Add 'backend' header arg to clojure code blocks

[Ihor Radchenko]

Chris Clark <cfclrk@gmail.com> writes:

> This is my first attempt to contribute to org-mode; please let me know if
> I'm doing something wrong.

Thanks a lot! Contributions are always welcome.

Please also add a mention and/or example to the ob-clojure documentation
https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-clojure.html
(The source repository is https://git.sr.ht/~bzg/worg )

Also, you need to add an etc/ORG-NEWS entry about the new header
argument.

And I have few minor comments on the patch itself.

> From cc72dcac3075be76e3edcfee75c887272e48698c Mon Sep 17 00:00:00 2001
> From: Chris Clark <cfclrk@gmail.com>
> Date: Sat, 8 Oct 2022 05:41:20 -0400
> Subject: [PATCH] ob-clojure.el: Add a 'backend' header arg to clojure code blocks
                                       ^:backend
> * ob-clojure.el (org-babel-header-args:clojure,
> org-babel-execute:clojure): Add a 'backend' header arg that can
                                   ^:backend
> override the configured `org-babel-clojure-backend`.
                                                   ^'
(by convention, we quote like `symbol' using `' pair).                                                   

Also, unless you have FSF copyright assignment, we need you to add
TINYCHANGE at the end of the commit message. See
https://orgmode.org/worg/org-contribute.html#first-patch

> +           (t (user-error "You need to customize org-babel-clojure-backend")))))

While we are here, can as well quote `org-babel-clojure-backend'.

Or may even add "or set `:backend' header argument".

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>

Re: Add 'backend' header arg to clojure code blocks

[Chris Clark]

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Thank you for the great feedback! Here are some updated patches.

Attached are two patches: one for org mode, and a corresponding one for
worg.

On Sun, Oct 9, 2022 at 3:42 AM Ihor Radchenko <yantar92@gmail.com> wrote:

> Chris Clark <cfclrk@gmail.com> writes:
>
> > This is my first attempt to contribute to org-mode; please let me know if
> > I'm doing something wrong.
>
> Thanks a lot! Contributions are always welcome.
>
> Please also add a mention and/or example to the ob-clojure documentation
> https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-clojure.html
> (The source repository is https://git.sr.ht/~bzg/worg )
>
> Also, you need to add an etc/ORG-NEWS entry about the new header
> argument.
>
> And I have few minor comments on the patch itself.
>
> > From cc72dcac3075be76e3edcfee75c887272e48698c Mon Sep 17 00:00:00 2001
> > From: Chris Clark <cfclrk@gmail.com>
> > Date: Sat, 8 Oct 2022 05:41:20 -0400
> > Subject: [PATCH] ob-clojure.el: Add a 'backend' header arg to clojure
> code blocks
>                                        ^:backend
> > * ob-clojure.el (org-babel-header-args:clojure,
> > org-babel-execute:clojure): Add a 'backend' header arg that can
>                                    ^:backend
> > override the configured `org-babel-clojure-backend`.
>                                                    ^'
> (by convention, we quote like `symbol' using `' pair).
>
>
> Also, unless you have FSF copyright assignment, we need you to add
> TINYCHANGE at the end of the commit message. See
> https://orgmode.org/worg/org-contribute.html#first-patch
>
> > +           (t (user-error "You need to customize
> org-babel-clojure-backend")))))
>
> While we are here, can as well quote `org-babel-clojure-backend'.
>
> Or may even add "or set `:backend' header argument".
>
> --
> Ihor Radchenko // yantar92,
> Org mode contributor,
> Learn more about Org mode at <https://orgmode.org/>.
> Support Org development at <https://liberapay.com/org-mode>,
> or support my work at <https://liberapay.com/yantar92>
>

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From 669dc16a851fdab017e162c74c1cbf050ef429f4 Mon Sep 17 00:00:00 2001
From: Chris Clark <cfclrk@gmail.com>
Date: Sat, 8 Oct 2022 05:41:20 -0400
Subject: [PATCH] ob-clojure.el: Add a :backend header arg to clojure code
 blocks

* ob-clojure.el (org-babel-header-args:clojure,
org-babel-execute:clojure): Add a :backend header arg that can
override the configured `org-babel-clojure-backend'.

TINYCHANGE
---
 etc/ORG-NEWS       |  9 ++++++++
 lisp/ob-clojure.el | 54 ++++++++++++++++++++++++++--------------------
 2 files changed, 40 insertions(+), 23 deletions(-)

diff --git a/etc/ORG-NEWS b/etc/ORG-NEWS
index 34ec09927..c18c03725 100644
--- a/etc/ORG-NEWS
+++ b/etc/ORG-NEWS
@@ -314,6 +314,15 @@ This provides a proper counterpart to ~org-babel-pre-tangle-hook~, as
 per-tangle-destination. ~org-babel-tangle-finished-hook~ is just run
 once after the post tangle hooks.
 
+*** New =:backend= header argument for clojure code blocks
+
+The =:backend= header argument on clojure code blocks can override the
+value of ~org-babel-clojure-backend~. For example:
+
+#+begin_src clojure :backend babashka
+(range 2)
+#+end_src
+
 ** New options
 *** New custom settings =org-icalendar-scheduled-summary-prefix= and =org-icalendar-deadline-summary-prefix=
 
diff --git a/lisp/ob-clojure.el b/lisp/ob-clojure.el
index dc72eb049..d6f860e98 100644
--- a/lisp/ob-clojure.el
+++ b/lisp/ob-clojure.el
@@ -68,7 +68,10 @@
 (add-to-list 'org-babel-tangle-lang-exts '("clojurescript" . "cljs"))
 
 (defvar org-babel-default-header-args:clojure '())
-(defvar org-babel-header-args:clojure '((ns . :any) (package . :any)))
+(defvar org-babel-header-args:clojure
+  '((ns . :any)
+    (package . :any)
+    (backend . ((inf-clojure cider slime babashka nbb)))))
 (defvar org-babel-default-header-args:clojurescript '())
 (defvar org-babel-header-args:clojurescript '((package . :any)))
 
@@ -253,28 +256,33 @@
      "")))
 
 (defun org-babel-execute:clojure (body params)
-  "Execute a block of Clojure code with Babel."
-  (unless org-babel-clojure-backend
-    (user-error "You need to customize org-babel-clojure-backend"))
-  (let* ((expanded (org-babel-expand-body:clojure body params))
-	 (result-params (cdr (assq :result-params params)))
-	 result)
-    (setq result
-	  (cond
-	   ((eq org-babel-clojure-backend 'inf-clojure)
-	    (ob-clojure-eval-with-inf-clojure expanded params))
-           ((eq org-babel-clojure-backend 'babashka)
-	    (ob-clojure-eval-with-babashka ob-clojure-babashka-command expanded))
-           ((eq org-babel-clojure-backend 'nbb)
-	    (ob-clojure-eval-with-babashka ob-clojure-nbb-command expanded))
-	   ((eq org-babel-clojure-backend 'cider)
-	    (ob-clojure-eval-with-cider expanded params))
-	   ((eq org-babel-clojure-backend 'slime)
-	    (ob-clojure-eval-with-slime expanded params))))
-    (org-babel-result-cond result-params
-      result
-      (condition-case nil (org-babel-script-escape result)
-	(error result)))))
+  "Execute the BODY block of Clojure code with PARAMS using Babel."
+  (let* ((backend-override (cdr (assq :backend params)))
+         (org-babel-clojure-backend
+          (cond
+           (backend-override (intern backend-override))
+           (org-babel-clojure-backend org-babel-clojure-backend)
+           (t (user-error "You need to customize `org-babel-clojure-backend'
+or set the `:backend' header argument")))))
+    (let* ((expanded (org-babel-expand-body:clojure body params))
+	   (result-params (cdr (assq :result-params params)))
+	   result)
+      (setq result
+	    (cond
+	     ((eq org-babel-clojure-backend 'inf-clojure)
+	      (ob-clojure-eval-with-inf-clojure expanded params))
+             ((eq org-babel-clojure-backend 'babashka)
+	      (ob-clojure-eval-with-babashka ob-clojure-babashka-command expanded))
+             ((eq org-babel-clojure-backend 'nbb)
+	      (ob-clojure-eval-with-babashka ob-clojure-nbb-command expanded))
+	     ((eq org-babel-clojure-backend 'cider)
+	      (ob-clojure-eval-with-cider expanded params))
+	     ((eq org-babel-clojure-backend 'slime)
+	      (ob-clojure-eval-with-slime expanded params))))
+      (org-babel-result-cond result-params
+        result
+        (condition-case nil (org-babel-script-escape result)
+	  (error result))))))
 
 (defun org-babel-execute:clojurescript (body params)
   "Evaluate BODY with PARAMS as ClojureScript code."
-- 
2.38.0


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From 439a0567e6a195f8a492b9bd1128bdf2fac96f31 Mon Sep 17 00:00:00 2001
From: Chris Clark <cfclrk@gmail.com>
Date: Sun, 9 Oct 2022 10:49:07 -0400
Subject: [PATCH] ob-doc-clojure.org: Add example of :backend header arg

---
 org-contrib/babel/languages/ob-doc-clojure.org | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/org-contrib/babel/languages/ob-doc-clojure.org b/org-contrib/babel/languages/ob-doc-clojure.org
index a577d9b2..818cfef7 100644
--- a/org-contrib/babel/languages/ob-doc-clojure.org
+++ b/org-contrib/babel/languages/ob-doc-clojure.org
@@ -305,6 +305,21 @@ this dir variable in Clojure to construct a correct path.
 ,#+end_src
 #+end_src
 
+* Evaluating with babashka
+
+You can also evaluate a Clojure code block using [[https://github.com/babashka/babashka][babashka]] (assuming
+you have it installed). To do so, either customize
+~org-babel-clojure-backend~ or use the ~:backend~ header argument. For
+example:
+
+#+begin_example
+,#+begin_src clojure :backend babashka
+  (range 3)
+,#+end_src
+
+,#+RESULTS:
+: (0 1 2)
+#+end_example
 
 * Additional Examples
 
-- 
2.38.0

Re: Add 'backend' header arg to clojure code blocks

[Ihor Radchenko]

Chris Clark <cfclrk@gmail.com> writes:

> Thank you for the great feedback! Here are some updated patches.
>
> Attached are two patches: one for org mode, and a corresponding one for
> worg.

Thanks!
Applied onto main in Org and onto master in Worg.
https://git.savannah.gnu.org/cgit/emacs/org-mode.git/commit/?id=4d07df718b36bf8af51241c0ab4c1d338fd936c1
https://git.sr.ht/~bzg/worg/commit/b6310ac155b62cb9051b0c647f58d355a61d042a

I have added a changelog message to the Worg commit.

I also added you to the contributor list in
https://orgmode.org/worg/contributors.html

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>

[PATCH] Fix void variable error `cider-buffer-ns` when specifying :backend header argument

[Christopher M. Miles]

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After updated to latest commit, I found error,

Reproduce:

When I specified the `:backend` header argument:

#+begin_src clojure :backend babashka
(+ 2 4)
#+end_src

I got error:

#+begin_example
void variable: cider-buffer-ns
#+end_example

Here is the patch fix upper issue.


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From 245fc50b2eae115144c83ad97c1f9490f525b062 Mon Sep 17 00:00:00 2001
From: stardiviner <numbchild@gmail.com>
Date: Wed, 12 Oct 2022 08:32:50 +0800
Subject: [PATCH] lisp/ob-clojure.el: Fix :backend override not work with
 `org-babel-clojure-backend'

* lisp/ob-clojure.el (org-babel-expand-body:clojure): When The source
block specified header argument :backend, the global option
`org-babel-clojure-backend' value is default 'cider, the
`cider-buffer-ns` is not void error.
---
 lisp/ob-clojure.el | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lisp/ob-clojure.el b/lisp/ob-clojure.el
index d6f860e98..a6a463b83 100644
--- a/lisp/ob-clojure.el
+++ b/lisp/ob-clojure.el
@@ -104,8 +104,10 @@
 (defun org-babel-expand-body:clojure (body params)
   "Expand BODY according to PARAMS, return the expanded body."
   (let* ((vars (org-babel--get-vars params))
+         (backend-override (cdr (assq :backend params)))
 	 (ns (or (cdr (assq :ns params))
-		 (if (eq org-babel-clojure-backend 'cider)
+		 (if (and (not backend-override)
+                          (eq org-babel-clojure-backend 'cider))
 		     (or cider-buffer-ns
 			 (let ((repl-buf (cider-current-connection)))
 			   (and repl-buf (buffer-local-value
-- 
2.37.2


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-- 

[ stardiviner ]
I try to make every word tell the meaning that I want to express without misunderstanding.

Blog: https://stardiviner.github.io/
IRC(libera.chat, freenode): stardiviner, Matrix: stardiviner
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Re: [PATCH] Fix void variable error `cider-buffer-ns` when specifying :backend header argument

[Ihor Radchenko]

"Christopher M. Miles" <numbchild@gmail.com> writes:

> After updated to latest commit, I found error,
>
> Reproduce:
>
> When I specified the `:backend` header argument:
>
> #+begin_src clojure :backend babashka
> (+ 2 4)
> #+end_src
>
> I got error:
>
> #+begin_example
> void variable: cider-buffer-ns
> #+end_example

Thanks for reporting!

> Here is the patch fix upper issue.
>
>    (let* ((vars (org-babel--get-vars params))
> +         (backend-override (cdr (assq :backend params)))
>  	 (ns (or (cdr (assq :ns params))
> -		 (if (eq org-babel-clojure-backend 'cider)
> +		 (if (and (not backend-override)
> +                          (eq org-babel-clojure-backend 'cider))
>  		     (or cider-buffer-ns
>  			 (let ((repl-buf (cider-current-connection)))
>  			   (and repl-buf (buffer-local-value

What if backend-override is 'cider?
I suggest to let-bind
(org-babel-clojure-backend
          (cond
           (backend-override (intern backend-override))
           (org-babel-clojure-backend org-babel-clojure-backend)
           (t (user-error "You need to customize `org-babel-clojure-backend'
or set the `:backend' header argument"))))

Just like in `org-babel-execute:clojure'.

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>

Re: [PATCH] (v2) Fix void variable error `cider-buffer-ns` when specifying :backend header argument

[Christopher M. Miles]

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Ihor Radchenko <yantar92@gmail.com> writes:

> "Christopher M. Miles" <numbchild@gmail.com> writes:
>
>> After updated to latest commit, I found error,
>>
>> Reproduce:
>>
>> When I specified the `:backend` header argument:
>>
>> #+begin_src clojure :backend babashka
>> (+ 2 4)
>> #+end_src
>>
>> I got error:
>>
>> #+begin_example
>> void variable: cider-buffer-ns
>> #+end_example
>
> Thanks for reporting!
>
>> Here is the patch fix upper issue.
>>
>>    (let* ((vars (org-babel--get-vars params))
>> +         (backend-override (cdr (assq :backend params)))
>>  	 (ns (or (cdr (assq :ns params))
>> -		 (if (eq org-babel-clojure-backend 'cider)
>> +		 (if (and (not backend-override)
>> +                          (eq org-babel-clojure-backend 'cider))
>>  		     (or cider-buffer-ns
>>  			 (let ((repl-buf (cider-current-connection)))
>>  			   (and repl-buf (buffer-local-value
>
> What if backend-override is 'cider?
> I suggest to let-bind
> (org-babel-clojure-backend
>           (cond
>            (backend-override (intern backend-override))
>            (org-babel-clojure-backend org-babel-clojure-backend)
>            (t (user-error "You need to customize `org-babel-clojure-backend'
> or set the `:backend' header argument"))))
>
> Just like in `org-babel-execute:clojure'.

You're right, updated now.


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From 1ecdcc596c8447fcf96ff400f544c0adc680c8fc Mon Sep 17 00:00:00 2001
From: stardiviner <numbchild@gmail.com>
Date: Wed, 12 Oct 2022 17:27:58 +0800
Subject: [PATCH] lisp/ob-clojure.el: Fix :backend override not work with
 `org-babel-clojure-backend'

* lisp/ob-clojure.el (org-babel-expand-body:clojure): When The source
block specified header argument :backend, the global option
`org-babel-clojure-backend' value is default 'cider, the
`cider-buffer-ns` is not void error.
---
 lisp/ob-clojure.el | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lisp/ob-clojure.el b/lisp/ob-clojure.el
index d6f860e98..0649469b3 100644
--- a/lisp/ob-clojure.el
+++ b/lisp/ob-clojure.el
@@ -104,6 +104,13 @@
 (defun org-babel-expand-body:clojure (body params)
   "Expand BODY according to PARAMS, return the expanded body."
   (let* ((vars (org-babel--get-vars params))
+         (backend-override (cdr (assq :backend params)))
+         (org-babel-clojure-backend
+          (cond
+           (backend-override (intern backend-override))
+           (org-babel-clojure-backend org-babel-clojure-backend)
+           (t (user-error "You need to customize `org-babel-clojure-backend'
+or set the `:backend' header argument"))))
 	 (ns (or (cdr (assq :ns params))
 		 (if (eq org-babel-clojure-backend 'cider)
 		     (or cider-buffer-ns
-- 
2.37.2


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Re: [PATCH] (v2) Fix void variable error `cider-buffer-ns` when specifying :backend header argument

[Ihor Radchenko]

"Christopher M. Miles" <numbchild@gmail.com> writes:

> From 1ecdcc596c8447fcf96ff400f544c0adc680c8fc Mon Sep 17 00:00:00 2001
> From: stardiviner <numbchild@gmail.com>
> Date: Wed, 12 Oct 2022 17:27:58 +0800
> Subject: [PATCH] lisp/ob-clojure.el: Fix :backend override not work with
>  `org-babel-clojure-backend'

Thanks!
Applied onto main.
https://git.savannah.gnu.org/cgit/emacs/org-mode.git/commit/?id=601ce688d5a51db7f1a5262063512f13b581bdc4

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
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