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authorLudovic Courtès <ludo@gnu.org>2016-02-05 11:39:27 +0100
committerLudovic Courtès <ludo@gnu.org>2016-02-05 14:01:46 +0100
commit1d6b7d584736ff0ad9e852a39c7c151e10713580 (patch)
treeb80702c38f8d07b9232fb0e3ee916fdfcf4f0a7b /gnu/services/shepherd.scm
parent6b55ee88890c114f9829029c7d0c0c3f03bcda03 (diff)
guix system: Simply warn if we cannot talk to the shepherd.
Before that 'open-connection' would return #f, and thus 'current-services' would return a single #f value when its continuation expects two. Reported by calher on #guix. * gnu/services/herd.scm (open-connection): Rethrow system-error exceptions. (with-shepherd): Expect CONNECTION to always be true; remove useless 'dynamic-wind'. * guix/scripts/system.scm (warn-on-system-error): New macro. (upgrade-shepherd-services): Wrap body in 'warn-on-system-error'.
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