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41 lines
1.1 KiB
Bash
Executable File
41 lines
1.1 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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: ${DF=df}
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: ${MKDIR=mkdir}
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# Try these
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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 $CANDIDATE_TMP_DIRS; do
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d_mount_point=`$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 $other_partition_tmpdir; then
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cat <<EOF 1>&2
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This test requires a writable directory on a different disk partition,
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and I couldn\'t find one. I tried these defaults:
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$CANDIDATE_TMP_DIRS
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Set your environment variable CANDIDATE_TMP_DIRS to make this test use
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use a different list.
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EOF
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fi
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