From 8deb65c37850bfca36429f3fe5239bd9236f969c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= Date: Thu, 9 May 2019 17:13:00 +0200 Subject: [PATCH] tests: Ensure 'unshare' works before relying on it. Fixes . Reported by Josh Holland . * tests/guix-pack-relocatable.sh: Before invoking 'unshare' at the bottom, add "if unshare -r true" condition. * tests/guix-pack.sh: Likewise. --- tests/guix-pack-relocatable.sh | 15 +++++++++++---- tests/guix-pack.sh | 4 ++-- 2 files changed, 13 insertions(+), 6 deletions(-) diff --git a/tests/guix-pack-relocatable.sh b/tests/guix-pack-relocatable.sh index 38dcf1e485..c45a679bb1 100644 --- a/tests/guix-pack-relocatable.sh +++ b/tests/guix-pack-relocatable.sh @@ -65,8 +65,15 @@ export relocatable_option tarball="`guix pack $relocatable_option -S /Bin=bin sed`" (cd "$test_directory"; tar xvf "$tarball") -# Run that relocatable 'sed' in a user namespace where we "erase" the store by -# mounting an empty file system on top of it. That way, we exercise the -# wrapper code that creates the user namespace and bind-mounts the store. -unshare -mrf sh -c 'mount -t tmpfs none "$STORE_PARENT"; echo "$STORE_PARENT"/*; "$test_directory/Bin/sed" --version > "$test_directory/output"' +if unshare -r true # Are user namespaces supported? +then + # Run that relocatable 'sed' in a user namespace where we "erase" the store by + # mounting an empty file system on top of it. That way, we exercise the + # wrapper code that creates the user namespace and bind-mounts the store. + unshare -mrf sh -c 'mount -t tmpfs none "$STORE_PARENT"; echo "$STORE_PARENT"/*; "$test_directory/Bin/sed" --version > "$test_directory/output"' +else + # Run the relocatable 'sed' in the current namespaces. This is a weak + # test because we're going to access store items from the host store. + "$test_directory/Bin/sed" --version > "$test_directory/output" +fi grep 'GNU sed' "$test_directory/output" diff --git a/tests/guix-pack.sh b/tests/guix-pack.sh index a43f4d128f..3cd0404748 100644 --- a/tests/guix-pack.sh +++ b/tests/guix-pack.sh @@ -1,6 +1,6 @@ # GNU Guix --- Functional package management for GNU # Copyright © 2018 Chris Marusich -# Copyright © 2018 Ludovic Courtès +# Copyright © 2018, 2019 Ludovic Courtès # # This file is part of GNU Guix. # @@ -59,7 +59,7 @@ is_available () { type "$1" > /dev/null } -if is_available chroot && is_available unshare; then +if is_available chroot && is_available unshare && unshare -r true; then # Verify we can use what we built. unshare -r chroot . /opt/gnu/bin/guile --version cd -