#!/bin/sh
#
-# $Id$
-#
-# Send multiples files and/or directories as a tar/compressed
-# image, in a MIME message.
+# Sends multiple files and/or directories in a MIME message.
+# Requires tar and any specified compression program.
#
+# This code is Copyright (c) 2012, by the authors of nmh. See the
+# COPYRIGHT file in the root directory of the nmh distribution for
+# complete copyright information.
-DELAY=0
-FROM=
+usage='Usage: sendfiles [switches] -to recipient -subject subject '"\
+"'file1 [file2 ...]
+ or
+ sendfiles [switches] recipient subject file1 [file2 ...]
+ switches are:
+ -compress [bzip2 | compress | gzip | lzma | none]
+ -from <sender>
+ -[delay] <delay> (expressed in seconds)
+ -version
+ -help
+ Can use PERSON environment variable instead of -from switch.'
-case "$1" in
- -*) DELAY="`echo $1 | sed -e 's%-%%'`"
- shift
- ;;
-esac
-if [ ! -z "$PERSON" ]; then
- FROM="-from $PERSON"
+#### Find location of a program. Bourne shell just puts the name in
+#### $0 if it's found from the PATH, so search that if necessary.
+finddir() {
+ case $1 in
+ */*) dirname "$1" ;;
+ * ) IFS=:
+ for d in $PATH; do
+ [ -f "${d:=.}/$1" -a -x "$d/$1" ] && printf %s "$d" && break
+ done ;;
+ esac
+}
+
+die() {
+ printf '%s\n' "$usage"; exit ${1:-1}
+}
+
+bindir=`finddir $0`
+nmhbindir=`cd "$bindir" && pwd`
+nmhlibdir=`$nmhbindir/mhparam libdir`
+
+
+#### Process switches.
+compress= ## compress method
+compressarg=0 ## whether currently handling -compress
+delay= ## delay value
+delayarg=0 ## whether currently handling -delay
+from= ## From: contents
+fromarg=0 ## whether currently handling -from
+subject= ## Subject: contents
+subjectarg=0 ## whether currently handling -subject
+to= ## To: address
+toarg=0 ## whether currently handling -to
+for arg in "$@"; do
+ case $arg in
+ -c|-co|-com|-comp|-compr|-compre|-compres|-compress) compressarg=1 ;;
+ -d|-de|-del|-dela|-delay) delayarg=1 ;;
+ -[0-9]|-[0-9][0-9]|-[0-9][0-9][0-9]|-[0-9][0-9][0-9][0-9])
+ delay=`printf '%s\n' "$arg" | sed -e 's%-%%'` ;;
+ -f|-fr|-fro|-from) fromarg=1 ;;
+ #### Support -gzip for backward compatibility.
+ -gzip) compress=gzip ;;
+ -h|-he|-hel|-help) die 0 ;;
+ #### Support -none for backward compatibility.
+ -none) compress=none ;;
+ -s|-su|-sub|-subj|-subje|-subjec|-subject) subjectarg=1 ;;
+ -t|-to) toarg=1 ;;
+ -v|-ve|-ver|-vers|-versi|-versio|-version)
+ "$nmhlibdir/viamail" -version | sed 's/viamail/sendfiles/'; exit ;;
+ -*) die ;;
+ *) if [ $compressarg -eq 1 ]; then
+ compress="$arg"
+ compressarg=0
+ elif [ $delayarg -eq 1 ]; then
+ delay="$arg"
+ delayarg=0
+ elif [ $fromarg -eq 1 ]; then
+ from="$arg"
+ fromarg=0
+ elif [ $subjectarg -eq 1 ]; then
+ subject="$arg"
+ subjectarg=0
+ elif [ $toarg -eq 1 ]; then
+ to="$arg"
+ toarg=0
+ else
+ #### Argument doesn't apply to a switch, so we're done with switches.
+ break
+ fi ;;
+ esac
+ shift
+done
+
+#### Check for switch after non-switch argument.
+for arg in "$@"; do
+ case $arg in
+ -*) die ;;
+ esac
+done
+
+#### Check for required arguments (to, subject, file(s)).
+if [ x"$to" = x ]; then
+ if [ x"$subject" = x ]; then
+ if [ $# -ge 3 ]; then
+ to="$1"; shift
+ subject="$1"; shift
+ else
+ die
+ fi
+ else
+ die
+ fi
+else
+ [ x"$subject" = x -o $# -lt 1 ] && die
fi
-if [ $# -lt 3 ]; then
- echo 'usage: sendfiles: "mailpath" "subject-string" directory-or-file ...' 1>&2
- exit 1;
+#### Check for missing mandatory arguments.
+checkforargs() {
+ if [ $compressarg -eq 1 ]; then
+ printf 'sendfiles: missing argument to -compress\n' >&2; exit 1
+ elif [ $delayarg -eq 1 ]; then
+ printf 'sendfiles: missing argument to -delay\n' >&2; exit 1
+ elif [ $fromarg -eq 1 ]; then
+ printf 'sendfiles: missing argument to -from\n' >&2; exit 1
+ elif [ $subjectarg -eq 1 ]; then
+ printf 'sendfiles: missing argument to -subject\n' >&2; exit 1
+ elif [ $toarg -eq 1 ]; then
+ printf 'sendfiles: missing argument to -to\n' >&2; exit 1
+ fi
+}
+
+checkforargs
+[ $# -eq 0 ] && die
+
+
+if [ x"$from" = x ]; then
+ if [ x"$PERSON" = x ]; then
+ from=`"$nmhlibdir/ap" -format '%(localmbox)' 0`
+ else
+ from="$PERSON"
+ fi
fi
-mailpath="$1"
-echo "mailpath = $mailpath" 1>&2
-shift
-subject="$1"
-echo "subject-string = $subject" 1>&2
-shift
+#### Determine compression method and descriptive info.
+if [ x"$compress" = x ]; then
+ for compressor in gzip bzip2 lzma compress none; do
+ if [ x"`finddir $compressor`" = x ]; then :; else
+ compress="$compressor"
+ break
+ fi
+ done
+fi
+
+case $compress in
+ bzip2) uncompress=bzcat; conversion='; x-conversions=bzip2' ;;
+ compress) compress='compress -c'; uncompress='uncompress -c';
+ conversion='; x-conversions=compress' ;;
+ gzip) compress='gzip -c'; uncompress='gzip -cd'
+ conversion='; x-conversions=gzip' ;;
+ lzma) compress='lzma -c'; uncompress='lzma -cd'
+ conversion='; x-conversions=lzma' ;;
+ none) compress=cat uncompress=cat; conversion= ;;
+ *) printf 'sendfiles: unknown compression method "%s"\n' \
+ "$compress" >&2
+ die ;;
+esac
-echo "files = $*" 1>&2
-tar cvf - "$@" | compress | \
- viamail -to "$mailpath" -subject "$subject" \
- -parameters "type=tar; x-conversions=compress" \
- -comment "extract with uncompress | tar xvpf -" \
- -delay "$DELAY" \
- -verbose $FROM
+#### Send using viamail.
+tar cvf - "$@" | $compress | \
+ "$nmhlibdir/viamail" -to "$to" -subject "$subject" \
+ -from "$from" -parameters "type=tar$conversion" \
+ -comment "extract with $uncompress | tar xvpf -" \
+ -delay "$delay" -verbose
projects / mmh / blobdiff