mkimage-profiles/bin/mktmpdir
Michael Shigorin 7738c6a67d bin/mktmpdir tweaks
The fallback case of building in a brother directory moved
from the last line of code to the first one becoming more
explicit along the way.

Support for slash-containing argument (being a tmpdir name
template prefix) has been added.
2012-01-02 21:01:09 +02:00

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#!/bin/sh
# analyze free space, preferring tmpfs over really many gigaz
# hope there aren't spaces in RM's $HOME are they?
DIRS="$TMP $TMPDIR $HOME/hasher /tmp /var/tmp .."
MINSIZE=262144 # face control criterion
# pick existing, writeable, >256M free space dirs
# rank them wrt type: tmpfs > realfs > rootfs
choose_tmpdir() {
for i in $DIRS; do
[ -d "$i" -a -w "$i" ] || continue
echo -n "$i "
df -Tl "$i" | tail -1
done \
| sort -unk6 \
| while read dir dev fstype size used free percent mnt; do
[ "$free" -gt "$MINSIZE" ] || continue
[ "$fstype" = "tmpfs" ] && { echo "2 $dir $free"; continue; }
[ "$mnt" = "/" ] && { echo "0 $dir $free"; continue; }
echo "1 $dir $free"
done \
| sort -n \
| tail -1 \
| cut -f2 -d' '
}
DIR="`choose_tmpdir`/`dirname "$1"`"
NAME="`basename "${1:-tmpdir}"`"
mkdir -p "$DIR" # in case $1 contains slash(es)
mktemp -d "$NAME.XXXXXXX" --tmpdir="${DIR%/.}"