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clean-old.sh
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Sun, Dec 29, 15:12

clean-old.sh
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#!/bin/bash
# look for old 0.x cruft, and get rid of it.
# Should already be sitting in the npm folder.
# This doesn't have to be quite as cross-platform as install.sh.
# There are some bash-isms, because maintaining *two*
# fully-portable posix/bourne sh scripts is too much for
# one project with a sane maintainer.
# If readlink isn't available, then this is just too tricky.
# However, greadlink is fine, so Solaris can join the party, too.
readlink="readlink"
which $readlink >/dev/null 2>/dev/null
if [ $? -ne 0 ]; then
readlink="greadlink"
which $readlink >/dev/null 2>/dev/null
if [ $? -ne 0 ]; then
echo "Can't find the readlink or greadlink command. Aborting."
exit 1
fi
fi
if [ "x$npm_config_prefix" != "x" ]; then
PREFIXES=$npm_config_prefix
else
node="$NODE"
if [ "x$node" = "x" ]; then
node=`which node`
fi
if [ "x$node" = "x" ]; then
echo "Can't find node to determine prefix. Aborting."
exit 1
fi
PREFIX=`dirname $node`
PREFIX=`dirname $PREFIX`
echo "cleanup prefix=$PREFIX"
PREFIXES=$PREFIX
altprefix=`"$node" -e process.installPrefix`
if [ "x$altprefix" != "x" ] && [ "x$altprefix" != "x$PREFIX" ]; then
echo "altprefix=$altprefix"
PREFIXES="$PREFIX $altprefix"
fi
fi
# now prefix is where npm would be rooted by default
# go hunting.
packages=
for prefix in $PREFIXES; do
packages="$packages
"`ls "$prefix"/lib/node/.npm 2>/dev/null | grep -v .cache`
done
packages=`echo $packages`
filelist=()
fid=0
for prefix in $PREFIXES; do
# remove any links into the .npm dir, or links to
# version-named shims/symlinks.
for folder in share/man bin lib/node; do
find $prefix/$folder -type l | while read file; do
target=`$readlink $file | grep '/\.npm/'`
if [ "x$target" != "x" ]; then
# found one!
filelist[$fid]="$file"
let 'fid++'
# also remove any symlinks to this file.
base=`basename "$file"`
base=`echo "$base" | awk -F@ '{print $1}'`
if [ "x$base" != "x" ]; then
find "`dirname $file`" -type l -name "$base"'*' \
| while read l; do
target=`$readlink "$l" | grep "$base"`
if [ "x$target" != "x" ]; then
filelist[$fid]="$1"
let 'fid++'
fi
done
fi
fi
done
# Scour for shim files. These are relics of 0.2 npm installs.
# note: grep -r is not portable.
find $prefix/$folder -type f \
| xargs grep -sl '// generated by npm' \
| while read file; do
filelist[$fid]="$file"
let 'fid++'
done
done
# now remove the package modules, and the .npm folder itself.
if [ "x$packages" != "x" ]; then
for pkg in $packages; do
filelist[$fid]="$prefix/lib/node/$pkg"
let 'fid++'
for i in $prefix/lib/node/$pkg\@*; do
filelist[$fid]="$i"
let 'fid++'
done
done
fi
for folder in lib/node/.npm lib/npm share/npm; do
if [ -d $prefix/$folder ]; then
filelist[$fid]="$prefix/$folder"
let 'fid++'
fi
done
done
# now actually clean, but only if there's anything TO clean
if [ "${#filelist[@]}" -gt 0 ]; then
echo ""
echo "This script will find and eliminate any shims, symbolic"
echo "links, and other cruft that was installed by npm 0.x."
echo ""
if [ "x$packages" != "x" ]; then
echo "The following packages appear to have been installed with"
echo "an old version of npm, and will be removed forcibly:"
for pkg in $packages; do
echo " $pkg"
done
echo "Make a note of these. You may want to install them"
echo "with npm 1.0 when this process is completed."
echo ""
fi
OK=
if [ "x$1" = "x-y" ]; then
OK="yes"
fi
while [ "$OK" != "y" ] && [ "$OK" != "yes" ] && [ "$OK" != "no" ]; do
echo "Is this OK?"
echo " enter 'yes' or 'no'"
echo " or 'show' to see a list of files "
read OK
if [ "x$OK" = "xshow" ] || [ "x$OK" = "xs" ]; then
for i in "${filelist[@]}"; do
echo "$i"
done
fi
done
if [ "$OK" = "no" ]; then
echo "Aborting"
exit 1
fi
for i in "${filelist[@]}"; do
rm -rf "$i"
done
fi
echo ""
echo 'All clean!'
exit 0

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