Script to convert a SYMPA mail archive to mbox format (sympa2mbox)

Export the mail archive using the SYMPA web interface, extract the zipfile and run the following script over the mail directory. You need to have “formail” installed.

#!/bin/bash

# This scripts takes a sympa email archive and converts it into a
# single mbox file

path="$1"
dest="$2"

function die()
{
	echo "$1"
	exit
}

# ensure arguments are passed
[ -z "$path" ] && die "Pass archive directory as first argument."
[ -z "$dest" ] && die "Pass destination mbox file name as second argument."

# sanity checking
[ ! -d "$path" ] && die "Can't find '$path'"
touch "$dest" || die "Can't write to '$dest'"

# we rely on directories being name in alpha order oldest -> newest 
for dir in $(ls "$path"); do
	if [ -d "$path/$dir" ]; then
		echo -n "Working on $path/$dir..."
		files=$(ls "$path/$dir" | sort -n)
		for file in $files; do
			formail -ds < $path/$dir/$file >> $dest
		done
		echo "done"
	fi
done