diff options
Diffstat (limited to 'scripts/flxfix')
| -rwxr-xr-x | scripts/flxfix | 84 |
1 files changed, 70 insertions, 14 deletions
diff --git a/scripts/flxfix b/scripts/flxfix index ef09a90..8952c39 100755 --- a/scripts/flxfix +++ b/scripts/flxfix @@ -1,27 +1,83 @@ #!/bin/bash -# flxfix - 2003/01/31 - Willy Tarreau <willy@ant-computing.com> +# flxfix 0.2 - 2005/04/17 - Willy Tarreau <willy@ant-computing.com> # Generates a shell script from a difference between two trees so that the last -# one becomes as close to the first one as possible. +# one becomes as close to the first one as possible. Second usage is to rebuild +# all the meta-data from a signature. +# # usage: # flx check <reference> <tobefixed> | flxfix [ -R ] > fix.sh -# Use -R to swap the two trees +# Use -R to swap the two trees +# flx sign <reference> | flxfix -n > create.sh +# Generates a shell script which rebuilds the meta-data from the tree's +# signature. +# +# WARNING: this script does not understand flx-0.7's extended encoding of +# unprintable characters. + + +entryisdiff=1 +restoredate=1 +unset mustswap ignoreuid # usage : fixperms $perm $uid $gid $date $name function fixperms { - echo touch -t \"`date -d "Jan 1 00:00:$4 UTC 1970" +"%Y%m%d%H%M.%S" `\" $5 - echo chown $2:$3 $5 + echo touch ${restoredate:+-t \"$(date -d "Jan 1 00:00:$4 UTC 1970" +"%Y%m%d%H%M.%S" )\"} $5 + [ -z "$ignoreuid" ] && echo chown $2:$3 $5 echo chmod $1 $5 } -mustswap=0 -if [ "x$1" = "x-R" ]; then - mustswap=1 -fi +# swap diff direction : -/+, </> +function swap { + local x + x=${1/</.}; x=${x/>/<}; x=${x/./>} + x=${x/-/.}; x=${x/+/-}; x=${x/./+} + echo -n $x +} + +# usage: usage progname exitcode +function usage { + echo "$1: Generates a script to rebuild the meta-data from an flx signature" + echo "Usage:" + echo " flx check <reference> <tobefixed> | $1 > fix.sh" + echo " flx check <tobefixed> <reference> | $1 -R > fix.sh" + echo " flx sign <reference> | $1 -n > new.sh" + echo " cat old-signature.lst | $1 -n > new.sh" + echo "" + echo "Options:" + echo " -R swap the two trees" + echo " -n recreate a new tree from a single signature" + echo " -t do not restore timestamp" + echo " -u do not restore uid/gid" + + exit $2 +} + + +while [ $# -gt 0 ]; do + if [ "x$1" = "x-R" ]; then + mustswap=1 + elif [ "x$1" = "x-n" ]; then + unset entryisdiff + elif [ "x$1" = "x-u" ]; then + ignoreuid=1 + elif [ "x$1" = "x-t" ]; then + unset restoredate + elif [ "x$1" = "x-h" ]; then + usage "${0##*/}" 0 + else + echo "Warning: ignoring unknown option: $1" + usage "${0##*/}" 1 + fi + shift +done -while read chg type perm uid gid size sign date name link rest; do - if [ $mustswap = 1 ]; then - chg=`echo $chg | tr '<>+\-' '><\-+'` +# trick: we only reference the 'chg' variable if 'entryisdiff' is set. +while read ${entryisdiff:+chg} type perm uid gid size sign date name link rest; do + if [ -z "$entryisdiff" ]; then + chg='-' + elif [ -n "$mustswap" ]; then + chg=$(swap $chg) fi if [ "x$rest" != "x" -o "x$type" != "xl" -a "x$link" != "x" ]; then @@ -45,7 +101,7 @@ while read chg type perm uid gid size sign date name link rest; do if [ x$type = xl ]; then # we'll rebuild a symbolic link echo ln -s $link $name - echo chown -h $uid:$gid $name + [ -z "$ignoreuid" ] && echo chown -h $uid:$gid $name elif [ x$type = xd ]; then # we'll rebuild a directory echo mkdir -p $name @@ -70,7 +126,7 @@ while read chg type perm uid gid size sign date name link rest; do # we'll destroy and rebuild a symbolic link echo rm -f $name echo ln -s $link $name - echo chown -h $uid:$gid $name + [ -z "$ignoreuid" ] && echo chown -h $uid:$gid $name elif [ x$type = xc -o x$type = xb -o x$type = xf ]; then # we'll destroy and rebuild nodes echo rm -f $name |