| 1 | #!/bin/sh |
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| 2 | # $Id: local-lockers.sh,v 1.3 2002-12-03 00:10:15 rbasch Exp $ |
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| 3 | |
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| 4 | # local-lockers - Bring lockers local using athlsync |
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| 5 | |
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| 6 | conf=/etc/athena/local-lockers.conf |
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| 7 | localdir=/var/athena/local |
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| 8 | validdir=/var/athena/local-validated |
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| 9 | margin=524288 # Keep 512MB free |
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| 10 | |
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| 11 | umask 022 |
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| 12 | PATH=/bin/athena:/usr/athena/etc:$PATH |
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| 13 | |
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| 14 | if [ ! -r $conf ]; then |
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| 15 | exit |
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| 16 | fi |
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| 17 | |
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| 18 | mkdir -p $localdir $validdir |
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| 19 | cflist= |
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| 20 | for l in `awk '/^[^#]/ { print; }' $conf`; do |
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| 21 | case $l in |
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| 22 | */*) |
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| 23 | # "lockername/symname" means to read the symlink "symname" in the locker |
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| 24 | # "lockername" to find the locker to copy. This "indirect locker" |
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| 25 | # case is for IS-maintained third-party software lockers. |
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| 26 | il=`dirname $l` |
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| 27 | sym=`basename $l` |
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| 28 | path=`hesinfo "$il" filsys | sort -nk 5 | awk '/^AFS/ { print $2; exit; }'` |
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| 29 | if [ ! -n "$path" ] || [ ! -d "$path" ] || [ ! -h "$path/$sym" ]; then |
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| 30 | continue |
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| 31 | fi |
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| 32 | l=`ls -l "$path/$sym" | sed -e 's/.* -> //'` |
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| 33 | ;; |
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| 34 | esac |
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| 35 | |
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| 36 | # Keep a list of configured locker names so we don't nuke them later. |
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| 37 | cflist="$cflist $l " |
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| 38 | |
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| 39 | path=`hesinfo "$l" filsys | sort -nk 5 | awk '/^AFS/ { print $2; exit; }'` |
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| 40 | localpath=$localdir/$l |
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| 41 | validpath=$validdir/$l |
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| 42 | if [ -n "$path" ] && [ -d "$path" ]; then |
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| 43 | space=`athlsync -s "$path" "$localpath"` |
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| 44 | freespace=`df -k $localdir | awk '{ av = $(NF-2); } END { print av; }'` |
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| 45 | if [ -n "$space" ] && [ "$freespace" -ge `expr "$space" + $margin` ]; then |
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| 46 | # Sync and validate the local copy. |
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| 47 | if athlsync "$path" "$localpath"; then |
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| 48 | rm -f "$validpath" |
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| 49 | ln -s "$localpath" "$validpath" |
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| 50 | fi |
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| 51 | else |
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| 52 | # Not enough room. De-validate the local copy if there is one, |
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| 53 | # unless there were no changes to sync. |
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| 54 | [ "$space" = 0 ] || rm -f "$validpath" |
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| 55 | fi |
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| 56 | fi |
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| 57 | done |
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| 58 | |
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| 59 | for d in `ls $localdir` ; do |
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| 60 | case $cflist in |
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| 61 | *" $d "*) |
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| 62 | # This is one of the lockers we wanted local, so keep it. |
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| 63 | continue |
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| 64 | ;; |
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| 65 | esac |
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| 66 | if [ ! -h "/var/athena/attachtab/locker/$d" ]; then |
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| 67 | # Not attached and no longer wanted local; nuke it. |
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| 68 | rm -rf "$validdir/$d" "$localdir/$d" |
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| 69 | fi |
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| 70 | done |
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