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-rw-r--r--gnu/packages/haskell-apps.scm13
1 files changed, 12 insertions, 1 deletions
diff --git a/gnu/packages/haskell-apps.scm b/gnu/packages/haskell-apps.scm
index e01f796178..818e691a6e 100644
--- a/gnu/packages/haskell-apps.scm
+++ b/gnu/packages/haskell-apps.scm
@@ -6,6 +6,7 @@
 ;;; Copyright © 2018 Arun Isaac <arunisaac@systemreboot.net>
 ;;; Copyright © 2016, 2017 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2015 Paul van der Walt <paul@denknerd.org>
+;;; Copyright © 2019 Kyle Meyer <kyle@kyleam.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -157,8 +158,13 @@ unique algebra of patches called @url{http://darcs.net/Theory,Patchtheory}.
        '("--flags=-Android -Assistant -Pairing -S3 -Webapp -WebDAV")
        #:phases
        (modify-phases %standard-phases
-         (add-before 'configure 'patch-shell
+         (add-before 'configure 'patch-shell-for-tests
            (lambda _
+             ;; Shell.hs defines "/bin/sh" that is used in Git hooks.  We
+             ;; shouldn't patch hooks with Guix's current bash because the
+             ;; hooks can exist after that bash is garbage collected, but
+             ;; let's temporarily patch it so that we can run the tests.
+             (copy-file "Utility/Shell.hs" "/tmp/Shell.hs")
              (substitute* "Utility/Shell.hs"
                (("/bin/sh") (which "sh")))
              #t))
@@ -192,6 +198,11 @@ unique algebra of patches called @url{http://darcs.net/Theory,Patchtheory}.
                (symlink "git-annex" "git-annex-shell"))
              (invoke "git-annex" "test")
              #t))
+         (add-after 'check 'unpatch-shell-and-rebuild
+           (lambda args
+             ;; Undo `patch-shell-for-tests'.
+             (copy-file "/tmp/Shell.hs" "Utility/Shell.hs")
+             (apply (assoc-ref %standard-phases 'build) args)))
          (add-after 'install 'install-symlinks
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))