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Re: [O] [Discuss] make :tangle header argument respect :dir could save i


From: Sean O'Halpin
Subject: Re: [O] [Discuss] make :tangle header argument respect :dir could save info typing
Date: Tue, 19 Mar 2019 13:08:29 +0000

Hi,

=:dir= specifies the directory for code execution, i.e. when you hit =C-c C-c= what is the environment in which the code is run?

=:mkdirp= forces creation of the directory for tangle output, i.e. when you =org-babel-tangle= where do you put the output source code?

They are quite separate concerns.

Regards,
Sean

On Tue, 5 Mar 2019 at 06:03, stardiviner <address@hidden> wrote:

I realized one thing, the combination of ~:mkdir~, ~:dir~, and ~:tangle~ does not work
good enough. Can make ~:tangle~ respect ~:dir~ too. WDYT?

Here is an example:

#+begin_src clojure :mkdirp yes :dir "data/code/clj-crawler-demo" :tangle "src/clj_crawler_demo/core.clj"
(ns clj-crawler-demo.core
  (:require [clj-http.client :as http])
  (:require [net.cgrand.enlive-html :as html]))

(html/select
 (-> (http/get "https://www.baidu.com")
     :body
     html/html-snippet)
 [:div])
#+end_src

Why need this? If ~:tangle~ respect ~:dir~, it will don't need the complete path to
tangled file. And when the source block has other header argument need dir like
~:file~, this will make ~:tangle~ and other related header arguments shorter.

If ~:tangle~ does not respect ~:dir~, user need to repeat the path:

#+begin_src clojure :mkdirp yes :dir "data/code/clj-crawler-demo" :tangle "data/code/clj-crawler-demo/src/clj_crawler_demo/core.clj"
(ns clj-crawler-demo.core
  (:require [clj-http.client :as http])
  (:require [net.cgrand.enlive-html :as html]))

(html/select
 (-> (http/get "https://www.baidu.com")
     :body
     html/html-snippet)
 [:div])
#+end_src

This is long, I know there is ~#+headers:~ for source block. But reduce info would
be better. I also consider the disadvantage of this change. Some user's existing
source block might be broken.

Let's level this change for discussion.

--
[ stardiviner ]
       I try to make every word tell the meaning what I want to express.

       Blog: https://stardiviner.github.io/
       IRC(freenode): stardiviner, Matrix: stardiviner
       GPG: F09F650D7D674819892591401B5DF1C95AE89AC3



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