From fffb7bc6e29d8a92923d70484b5e17cede736065 Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Mon, 24 Jun 2019 15:19:58 +0200
Subject: bin/return-assignment: correctly reschedule when haskell-* reports
 "Bad interface file: "

---
 bin/return-assignment | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/bin/return-assignment b/bin/return-assignment
index a93ce3e..3ff8989 100755
--- a/bin/return-assignment
+++ b/bin/return-assignment
@@ -229,10 +229,13 @@ if [ "$6" = 'ERROR' ]; then
     # $time_stamp
     broken_haskell_packages=$(mktemp 'tmp.return-assignment.broken-haskell-packages.XXXXXXXXXX' --tmpdir)
     trap 'rm "${broken_haskell_packages}"' EXIT
-
     find "${build_log_directory}/error" -type f \
       -name "$1.$2.$3.$4.$5.*.build-log.gz" \
-      -exec zgrep -qF 'The following packages are broken because other packages they depend on are missing. These broken packages must be rebuilt before they can be used.' {} \; \
+      -exec zgrep -qF "$(
+        printf '%s\n' \
+          'The following packages are broken because other packages they depend on are missing. These broken packages must be rebuilt before they can be used.'
+          'mismatched interface file versions (wanted '
+      )" {} \; \
       -printf '%p\n' | \
       sed '
         s/^.*\.\([0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}T[0-9]\{2\}:[0-9]\{2\}:[0-9]\{2\}\)\.build-log\.gz$/\1 \0/
@@ -242,10 +245,12 @@ if [ "$6" = 'ERROR' ]; then
           date +%s -d"${build_time}"
         )
         zcat "${build_log}" | \
-        sed -n '
+        sed '
           s/^installed package \(.*\) is broken due to missing package .*$/\1/
-          T
-          p
+          t
+          s@^.*Bad interface file: /usr/lib/ghc-[0-9.]\+/site-local/\([^/]\+\)-[0-9.]\+/.*$@\1@
+          t
+          d
         ' | \
         tr ' ' '\n' | \
         tr '[:upper:]' '[:lower:]' | \
-- 
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