‘%load-path’ in shepherd is unnecessarily long

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  • Ludovic Courtès
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Ludovic Courtès
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important
L
L
Ludovic Courtès wrote on 27 Sep 2019 09:22
(address . bug-Guix@gnu.org)
87a7aqdx0g.fsf@gnu.org
Hello Guix!

Here’s what I get on my freshly booted system:

Toggle snippet (8 lines)
$ sudo herd eval root %load-path
Evaluating user expression %load-path.
("/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/8a49xjf71dxzj2j4vqh4gw840xv1shxg-module-import" "/gnu/store/8a49xjf71dxzj2j4vqh4gw840xv1shxg-module-import" "/gnu/store/8a49xjf71dxzj2j4vqh4gw840xv1shxg-module-import" "/gnu/store/8a49xjf71dxzj2j4vqh4gw840xv1shxg-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/8a49xjf71dxzj2j4vqh4gw840xv1shxg-module-import" "/gnu/store/8a49xjf71dxzj2j4vqh4gw840xv1shxg-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/2dqkjgfd15yf3s62g001xkxgycadh7fm-module-import" "/gnu/store/2dqkjgfd15yf3s62g001xkxgycadh7fm-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/ldzgghnf4gm3y4367sknlig3wz3gvg7a-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/jrfjb1rd5jxi8fnz1ycsi55r4i7mpwr6-module-import" "/gnu/store/f4w6qzgsnxsm2cq8mn8fwnj5d5lirkad-shepherd-0.6.1/share/guile/site/2.2" "/gnu/store/1mkkv2caiqbdbbd256c4dirfi4kwsacv-guile-2.2.6/share/guile/2.2" "/gnu/store/1mkkv2caiqbdbbd256c4dirfi4kwsacv-guile-2.2.6/share/guile/site/2.2" "/gnu/store/1mkkv2caiqbdbbd256c4dirfi4kwsacv-guile-2.2.6/share/guile/site" "/gnu/store/1mkkv2caiqbdbbd256c4dirfi4kwsacv-guile-2.2.6/share/guile")
$ sudo herd eval root '(length %load-path)'
Evaluating user expression (length %load-path).
119

As you can see, this is not great.

This comes from the load-path expression in shepherd-*.scm:

Toggle snippet (27 lines)
(eval-when
(expand load eval)
(set! %load-path
(cons "/gnu/store/8a49xjf71dxzj2j4vqh4gw840xv1shxg-module-import"
(append
(map
(lambda
(extension)
(string-append extension "/share/guile/site/"
(effective-version)))
(quote
()))
%load-path)))
(set! %load-compiled-path
(cons "/gnu/store/lfj61bg7bb0aypqwj47j2dqnwc9bvpiw-module-import-compiled"
(append
(map
(lambda
(extension)
(string-append extension "/lib/guile/"
(effective-version)
"/site-ccache"))
(quote
()))
%load-compiled-path))))

Problem is that every time you reconfigure, the load path grows. Seen
on an important machine (ahem…):

Toggle snippet (5 lines)
# herd eval root '(length %load-path)'
Evaluating user expression (length %load-path).
2508

Ludo’.
L
L
Ludovic Courtès wrote on 28 Sep 2019 22:57
control message for bug #37531
(address . control@debbugs.gnu.org)
871rw0nnpx.fsf@gnu.org
severity 37531 important
quit
L
L
Ludovic Courtès wrote on 3 Oct 2019 23:50
Re: bug#37531: ‘%load-path’ in shepherd is unnecessarily long
(address . 37531-done@debbugs.gnu.org)
87o8yxxzur.fsf@gnu.org
Ludovic Courtès <ludo@gnu.org> skribis:

Toggle quote (4 lines)
> $ sudo herd eval root '(length %load-path)'
> Evaluating user expression (length %load-path).
> 119

Commit cdf9811d24b9c857cb79e0ddd38181862ec34bd3 fixes that at the level
of ‘scheme-file’.

Ludo’.
Closed
?