Capturing the results of shell execution

Capturing the results of shell execution

[Alex Bennée]

I'm using org-babel snippets to automate some of my workflow. However
I'm not interested in dumping all of the compile output, I'd rather get
a simple value at the end to see if all was OK:

#+name: build-test
#+begin_src sh :results value
  set -e
  ./configure --cross-prefix=aarch64-linux-gnu- --arch=arm64
  make clean
  make -j9
#+end_src

However there isn't a way to tell the difference between a failing
sequence and a passing one apart from *Org-Babel Error Output* being
popped up. It seems org-babel-eval just slurps up the return code and
blindly returns (buffer-string) regardless of the desires of the
:results keyword.

Is this an intentional limitation of babels sh evaluation?

Redirecting all the compile output in the snippet seems a little clumsy
a solution:

#+name: build-test
#+begin_src sh :results output
  set -e
  ./configure --cross-prefix=aarch64-linux-gnu- --arch=arm64
  make clean > /dev/null
  make -j9 > /dev/null
  echo "Build complete: `date`"
#+end_src

Ideally I'd like #+RESULTS to have a nice 0/1 which can be used to gate
other parts of the process.

Am I missing something?

--
Alex Bennée

Re: Capturing the results of shell execution

[Michael Welle]

Hello,

Alex Bennée <alex.bennee@linaro.org> writes:

> I'm using org-babel snippets to automate some of my workflow. However
> I'm not interested in dumping all of the compile output, I'd rather get
> a simple value at the end to see if all was OK:
>
> #+name: build-test
> #+begin_src sh :results value
>
>   set -e
>   ./configure --cross-prefix=aarch64-linux-gnu- --arch=arm64
>   make clean
>   make -j9
> #+end_src
do it with shell?

#+begin_src sh :results output
(
  set -e
  echo "Build complete: `date`"
  exit 1
) 2>&1 > /tmp/log
echo success: $?
#+end_src

Regards
hmw