Re: Starting a GNU Guile awesome list

[Zelphir Kaltstahl <zelphirkaltstahl@posteo.de>]

Hello Dmitry!

I know this is kind of a late reply. I hope you do not mind me
unearthing this. : )

On 7/16/20 10:47 AM, Dmitry Alexandrov wrote:
> "Dr. Arne Babenhauserheide" <arne_bab@web.de> wrote:
>>>> In the case you will stick with Org, there at least should be a runnable build recipe (i. e. a Makefile).
>> I’d like to cut this discussion short:
>>
>> https://notabug.org/ZelphirKaltstahl/awesome-guile/pulls/1/files
>> 	all: readme.md readme.texi readme.html
>> 	.INTERMEDIATE: .exported
>> 	readme.md readme.texi readme.html: .exported
>> 	.exported: readme.org
>> 		HOME=$$(dirname $$(realpath "$<")) emacs -Q --batch "$<" --exec "(require 'ox-md)" -f org-md-export-to-markdown -f org-html-export-to-html -f org-texinfo-export-to-texinfo -f kill-emacs
> Alternatively, without reliance on implicit behaviour (setting HOME in order to get an expected filename??):
>
> 	#!/usr/bin/make -f
> 	
> 	SHELL := emacs
> 	.SHELLFLAGS := --quick --batch --eval
> 	
> 	orgs := $(wildcard *.org)
> 	objs := $(orgs:.org=.md) $(orgs:.org=.texi)
> 	
> 	.PHONY: all
> 	all: $(objs)
> 	
> 	.ONESHELL:
> 	%.md %.texi: %.org
> 		(with-temp-buffer
> 		  (require 'ox-md)
> 		  (require 'ox-texinfo)
> 		  (when (insert-file-contents "$<")
> 		    (org-mode)
> 		    (org-export-to-file 'md "$*.md")
> 		    (org-export-to-file 'texinfo "$*.texi")))

I'm not that proficient at GNU Make yet. I would like to add a way to
cleanup created md and texi files, so that, when I run `make` again, it
creates all files anew.

So I thought I could simply add a `make clean` as follows:

~~~~
.PHONY: clean
clean:
	/bin/rm --verbose *.html *.md *.texi || true;
~~~~

But then I would hardcode the location of `rm` and also it does not work:

~~~~
/bin/rm --verbose *.html *.md *.texi || true;
Symbol’s value as variable is void: /bin/rm
make: *** [Makefile:17: clean] Error 255
~~~~

I think this is, because we have `#!/usr/bin/make -f` at the top, so it
does not know what `/bin/rm/` is. How would you write the makefile to
either add a `make clean` step, or alternatively modify it so that
running `make` will always create the other formats anew?

Regards,
Zelphir