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If sh is not bash, some builtin command behave slightly differently. E.g. if sh is provided by busybox, its builtin test command does not check if the path is a mount point or not, and 'test -w' only checks the access mode of the inode. So, even if a readonly filesystem is mounted on a directory, the test command may succeed. To avoid such confusion, let's unconditionally use bash.
18 lines
834 B
Desktop File
18 lines
834 B
Desktop File
# SPDX-License-Identifier: LGPL-2.1-or-later
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[Unit]
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Description=Test for TemporaryFileSystem with mount options
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[Service]
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Type=oneshot
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# The mount options default to "mode=0755,nodev,strictatime".
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# Let's override some of them, and test "ro".
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TemporaryFileSystem=/var:ro,mode=0700,nostrictatime
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# Check /proc/self/mountinfo
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ExecStart=bash -x -c 'test "$$(awk \'$$5 == "/var" && $$11 !~ /(^|,)mode=700(,|$$)/ { print $$6 }\' /proc/self/mountinfo)" = ""'
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ExecStart=bash -x -c 'test "$$(awk \'$$5 == "/var" && $$6 !~ /(^|,)ro(,|$$)/ { print $$6 }\' /proc/self/mountinfo)" = ""'
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ExecStart=bash -x -c 'test "$$(awk \'$$5 == "/var" && $$6 !~ /(^|,)nodev(,|$$)/ { print $$6 }\' /proc/self/mountinfo)" = ""'
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ExecStart=bash -x -c 'test "$$(awk \'$$5 == "/var" && $$6 ~ /(^|,)strictatime(,|$$)/ { print $$6 }\' /proc/self/mountinfo)" = ""'
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