This file is indexed.

preinst is in python-moinmoin 1.9.3-1ubuntu2.3.

This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.

The actual contents of the file can be viewed below.

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#!/bin/sh

set -e

rename_conffile_prepare () {
# syntax: rename_conffile_prepare old_name new_name official_md5sum ...
#
# Check a conffile "old_name" against a list of canonical MD5 checksums.  If
# the file's current MD5 checksum matches one of the "official_md5sum"
# operands provided, then rename the conffile to "new_file" and create a
# flag file indicating that we have done so.
#
# We leave the flag file around until the package is configured so that we
# can roll this operation back if package installation fails.
#
# Call this function from a preinst script in the event $1 is "upgrade" or
# "install" and verify $2 to ensure the package is being upgraded from a
# version (or installed over a version removed-but-not-purged) prior to the
# one in which the conffile was renamed.

	#local conffile current_checksum

	# Validate arguments.
	if [ $# -lt 3 ]; then
		echo "$0: usage error: rename_conffile_prepare() called with wrong number of arguments (expected at least 3, got $#)." >&2
		exit 2
	fi

	_old_conffile="$1"
	shift

	_new_conffile="$1"
	shift

	# We only have something to do if the _old_conffile exists and the
	# _new_conffile doesn't.
	if [ -e "$_old_conffile" ] && ! [ -e "$_new_conffile" ]; then
		# Calculate _old_conffile's checksum.
		_current_checksum=$(md5sum < "$_old_conffile" | sed 's/[[:space:]].*//')
		# Compare it to each supplied checksum.
		while [ -n "$1" ]; do

			_old_checksum="$1"
			shift

			_old_pkgver="$1"
			shift

			if [ "$_current_checksum" = "$_old_checksum" ]; then
				# We found a match; rename the conffile and stop looking.
				echo "Found old conffile (version $_old_pkgver): Renaming from $_old_conffile to $_new_conffile." >&2
				mv "$_old_conffile" "$_new_conffile" \
					> "$_old_conffile.python-moinmoin.moved"
				break
			fi
		done
	fi
}



if [ "$1" = "install" ] || [ "$1" = "upgrade" ]; then
	if dpkg --compare-versions "$2" lt "1.5.2"; then
		rename_conffile_prepare \
			/etc/moin/moinmaster.py /etc/moin/mywiki.py \
			0691ca2ee1a91d81e6010f92e5eb4e62 1.3.4-3 \
			53921d5995c4f8f7ee2dc75868837248 'unknown' \
			342a585c1a0255e8cbfaca607d068276 1.4.99+1.5.0rc1-1
	fi
fi