--- Begin Message ---
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Subject: |
error message when referencing non-existing output not helpful |
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Date: |
Mon, 19 Jan 2015 12:51:20 +0100 |
When a package recipe specifies as input a non-existing output of a
package, the build process fails with a rather unhelpful late error
message.
The following is the output of building a package that depends on the
"bin" output of libtool, which has since been removed.
~~~~~
address@hidden:~/code/guix] (599) $ ./pre-inst-env guix build ijs
Backtrace:
In ice-9/boot-9.scm:
157: 18 [catch #t #<catch-closure 10e4d60> ...]
In unknown file:
?: 17 [apply-smob/1 #<catch-closure 10e4d60>]
In ice-9/boot-9.scm:
63: 16 [call-with-prompt prompt0 ...]
In ice-9/eval.scm:
432: 15 [eval # #]
In ice-9/boot-9.scm:
2401: 14 [save-module-excursion #<procedure 1100940 at ice-9/boot-9.scm:4045:3
()>]
4050: 13 [#<procedure 1100940 at ice-9/boot-9.scm:4045:3 ()>]
1724: 12 [%start-stack load-stack ...]
1729: 11 [#<procedure 1118ea0 ()>]
In unknown file:
?: 10 [primitive-load "/home/rwurmus/code/guix/scripts/guix"]
In guix/ui.scm:
787: 9 [run-guix-command build "ijs"]
In ice-9/boot-9.scm:
157: 8 [catch srfi-34 #<procedure 1872840 at guix/ui.scm:218:2 ()> ...]
157: 7 [catch system-error ...]
In guix/scripts/build.scm:
436: 6 [#<procedure 1872860 at guix/scripts/build.scm:422:2 ()>]
In guix/ui.scm:
307: 5 [show-what-to-build #<build-daemon 256.14 17d7200> (#) #:dry-run? ...]
In guix/derivations.scm:
226: 4 [substitution-oracle #<build-daemon 256.14 17d7200> (#)]
In guix/store.scm:
705: 3 [substitutable-paths # #]
In srfi/srfi-1.scm:
619: 2 [for-each #<procedure 383ed80 at guix/serialization.scm:118:12
(t-3793)> #]
In guix/serialization.scm:
85: 1 [write-string #f #<input-output: socket 10>]
In unknown file:
?: 0 [string->utf8 #f]
ERROR: In procedure string->utf8:
ERROR: In procedure string->utf8: Wrong type argument in position 1 (expecting
string): #f
~~~~~
The error message is triggered by an unexpected #f in a long list of
paths. It would be more helpful if an earlier error was produced that
indicates that the cause is a non-existing package output.
--- End Message ---
--- Begin Message ---
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Subject: |
Re: bug#19630: error message when referencing non-existing output not helpful |
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Date: |
Sat, 24 Jan 2015 23:01:07 +0100 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux) |
Commit f304c9c fixes that. Now the result is something like this:
--8<---------------cut here---------------start------------->8---
$ ./pre-inst-env guix build abiword -n
guix build: error: reference to invalid output 'binfds' of derivation
'/gnu/store/7lxd5yri8s4vkailk1jg5bxiqrshblj1-glib-2.42.1.drv'
--8<---------------cut here---------------end--------------->8---
It doesn’t say the context in which that invalid reference occurred, but
it’s already much better.
Note that at the lowest level it’s possible to create a derivation that
refers to a non-existent output of some other derivation. The problem
will go unnoticed until the ‘build-derivations’ RPC is called.
Thanks,
Ludo’.
--- End Message ---