#! /bin/sh
##
- # rmmproc.messageid -- tries to back up a message/file to a file that's
- # named based on Message ID
+ # rmmproc.messageid -- tries to back up each message/file to a file
+ # that's named based on Message ID
#
# This code is Copyright (c) 2013, by the authors of nmh.
# See the COPYRIGHT file in the root directory of the nmh
# distribution for complete copyright information.
#
- # If called on a message, the current directory is the
- # message folder and $1 is the message filename.
- # If called on a file, $1 is the full path to the file.
+ # If called on messages, the current directory is the message folder
+ # and the script arguments are the message filenames. If called on
+ # files, the arguments are the full paths to the files.
#
# The backup directory will be:
- # 1) If input is a message, the folder of the message.
- # 2) If input is a file, the directory of the file.
+ # 1) If input is messages, the folder of the messages.
+ # 2) If input is files, the directories of the files.
# 3) If input is standard input (-), the user's MHPATH directory.
#
- # The backup filename will be:
+ # Each backup filename will be:
# 1) Message-ID with all / and \ converted to periods.
- # Message-IDs should not contain \, but some
- # filesystems can't handle them. Message-IDs should
- # be unique, so there should be no need to backup a
- # file with the same name, especially if the result of
- # malicious action. If the backup file already
+ # Message-IDs should not contain \, but some filesystems can't
+ # handle them. Message-IDs should be unique, so there should be
+ # no need to backup a file with the same name, especially if the
+ # result of malicious action. If the backup file already
# exists, use 2).
- # NOTE: conversion of some characters in the filename
- # could result in an unintended name collision. If
- # that is a concern, a program that uses mktemp(3) to
- # create a temporary file might be the basis for a
- # remedy.
- #
+ # NOTE: conversion of some characters in the filename could
+ # result in an unintended name collision. If that is a concern,
+ # a program that uses mkstemp(3) to create a temporary file might
+ # be the basis for a remedy.
# 2) Concatenation of BACKUP_PREFIX and input filename.
- # NOTE: if a file of that name already exists in the
- # destination directory, it will be overwritten by the
- # mv below.
- #
+ # NOTE: if a file of that name already exists in the destination
+ # directory, it will be overwritten by the mv below.
##
-if [ "$1" = - ]; then
- #### Input is stdin; put backup in user's MHPATH directory.
- dir=`mhparam path`
- #### If Path is relative, prepend home directory.
- [ `dirname "$dir"` = . ] && dir="$HOME/$dir"
-else
- dir=`dirname "$1"`
-fi
+for i in "$@"; do
+ if [ "$i" = - ]; then
+ #### Input is stdin; put backup in user's MHPATH directory.
+ dir=`mhparam path`
+ #### If Path is relative, prepend home directory.
+ [ `dirname "$dir"` = . ] && dir="$HOME/$dir"
+ else
+ dir=`dirname "$i"`
+ fi
+
+ #### Extract first Message-Id, remove <>, substitute / and \.
+ messageid=`sed -n '
+ /^$/q; /^[Mm][Ee][Ss][Ss][Aa][Gg][Ee]-[Ii][Dd]:/!d
+ s/>.*//; s/.*<//; y#/\\\#..#; p
+ ' "$i"`
-#### Extract first Message-Id, remove <>, substitute / and \.
-messageid=`sed -n '
- /^$/q; /^[Mm][Ee][Ss][Ss][Aa][Gg][Ee]-[Ii][Dd]:/!d
- s/>.*//; s/.*<//; y#/\\\#..#; p
- ' "$1"`
+ if [ "$messageid" -a ! -f "$dir/$messageid" ]; then
+ filename="$dir/$messageid"
+ else
+ #### `mhparam sbackup` is usually ',' but depends on configuration.
+ filename="$dir"/`mhparam sbackup``basename "$i"`
+ fi
-if [ "$messageid" -a ! -f "$dir/$messageid" ]; then
- filename="$dir/$messageid"
-else
- filename="$dir"/`mhparam sbackup``basename "$1"`
-fi
+ mv "$i" "$filename" || status=1
+done
-#### If unable to backup the message, exit with status 1.
-mv "$1" "$filename"
+exit $status
projects / nmh / blobdiff