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47 lines
1.2 KiB
Bash
Executable File
47 lines
1.2 KiB
Bash
Executable File
#! /bin/sh
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# Use df to find a writable directory on a file system different from that
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# of the current directory. If one is found, create a temporary directory
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# inside it.
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test "${CANDIDATE_TMP_DIRS+set}" = set \
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|| CANDIDATE_TMP_DIRS="$TMPDIR /tmp /var/tmp /usr/tmp $HOME"
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other_partition_tmpdir=
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# WARNING: using sed like this to extract the mount point will fail
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# if the mount point name contains `% '.
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dot_mount_point=`df --no-sync -P . | sed -n '2s/.*% *//p'`
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for d in $CANDIDATE_TMP_DIRS; do
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# Skip nonexistent directories.
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test -d $d || continue
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d_mount_point=`df --no-sync -P $d | sed -n '2s/.*% *//p'`
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# Same partition? Skip it.
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test x$d_mount_point = x$dot_mount_point && continue
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# See if we can create a directory in it.
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if mkdir "$d/df-$$" > /dev/null 2>&1; then
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other_partition_tmpdir="$d/df-$$"
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break
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fi
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done
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if test -z "$other_partition_tmpdir"; then
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cat <<EOF 1>&2
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**************************************
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This test requires a writable directory on a different
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disk partition, and I couldn't find one. I tried these:
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$CANDIDATE_TMP_DIRS
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Set your environment variable CANDIDATE_TMP_DIRS to make
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this test use a different list.
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**************************************
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EOF
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#'
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fi
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test "$VERBOSE" = yes && set -x
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