mirror of
https://github.com/nwchemgit/nwchem.git
synced 2026-07-29 06:35:39 -04:00
97f303e6f8
automatically be expanded to include useful information about the checkin (including the file's revision number). With the switch over to SVN this was lost because SVN only does this expansion if you explicitly ask for it (for every single file). I have added a script to the contrib directory that sets the appropriate property to get SVN to do this expansion. This script will make it easy to do this every time new source files are added. It is called svn_expand_Id, the script contains some comments that explain the issue and how it addresses this. This checkin sets this property for a subset of the relevant files (trying to commit all files at once failed with svn crashing). In future the script will only affect those files for which the property was not set before.
85 lines
1.5 KiB
Bash
Executable file
85 lines
1.5 KiB
Bash
Executable file
#!/bin/sh
|
|
|
|
#
|
|
# $Id$
|
|
#
|
|
|
|
#
|
|
# lockfile [-steal] filename
|
|
#
|
|
# Simluate a lock by creating and writing the specified file.
|
|
# The lock may be released by deleting the file. If -steal
|
|
# is specified then the lock is stolen instead of exiting on timeout.
|
|
#
|
|
# On sucess exits with status zero and access to the lock
|
|
#
|
|
# All other conditions exit with status one and undefined lock state.
|
|
#
|
|
# Some race conditions exist but deadlock is avoided by exiting/stealing
|
|
# if the lock is not acquired in TIMEOUT*SECS seconds
|
|
#
|
|
# SECS is the time in seconds to sleep between tries to get the lock
|
|
# TIMEOUT*SECS is the time in seconds before waiting is abandonned.
|
|
#
|
|
# BGJ - rewritten in Bourne shell for Cygnus NT port
|
|
#
|
|
|
|
TIMEOUT=12
|
|
SECS=2
|
|
|
|
unset STEAL
|
|
unset USAGE
|
|
|
|
if [ $# -eq 2 ] ; then
|
|
if [ "$1" = "-steal" ] ; then
|
|
STEAL=1
|
|
shift
|
|
else
|
|
USAGE=1
|
|
fi
|
|
elif [ $# -ne 1 -o "$1" = "-steal" ] ; then
|
|
USAGE=1
|
|
fi
|
|
|
|
if [ $USAGE ] ; then
|
|
echo 'usage: lockfile [-steal] filename'
|
|
exit 1
|
|
fi
|
|
|
|
file=$1
|
|
|
|
DOWAIT=1
|
|
nspin=0
|
|
|
|
while [ $DOWAIT ] ; do
|
|
|
|
while [ -f $file ] ; do
|
|
if [ $nspin -ge $TIMEOUT ] ; then
|
|
if [ $STEAL ] ; then
|
|
echo lockfile: stealing $file
|
|
/bin/rm -f $file
|
|
else
|
|
echo lockfile: timeout waiting for $file ... delete it\!
|
|
exit 1
|
|
fi
|
|
else
|
|
nspin=`expr $nspin + 1`
|
|
echo lockfile: waiting for $file
|
|
sleep $SECS
|
|
fi
|
|
done
|
|
|
|
echo $$ " " > $file
|
|
id="`cat $file`"
|
|
|
|
if [ $id -ne $$ ] ; then
|
|
echo lockfile: not fast enough on $file
|
|
else
|
|
unset DOWAIT
|
|
fi
|
|
|
|
done
|
|
|
|
echo Got lock on $file
|
|
|
|
exit 0
|