#!/bin/bash

# an attempt to automatize packaging DokuWiki for openSUSE

set -x

RELEASE='2015-08-10'      # hey, that's my birthday :)
NO_OF_COMP=5
NEWNAME=$(echo "$RELEASE" | tr '-' '.')
WORKDIR="$HOME/openSUSE/home:werfl/dw-temp"
WWWDIR="$WORKDIR/DokuWiki/srv/www"
NEWCONFDIR='/etc/DokuWiki'
OLDCONFDIR="$WWWDIR/DokuWiki/conf"

mkdir -p "$WORKDIR/DokuWiki/etc/apache2/conf.d"
mkdir -p "$WWWDIR"

# assume the standard download location
DLFROM='http://download.dokuwiki.org/src/dokuwiki'
DLFILE="dokuwiki-stable.tgz"
# and get the file
wget -O "${WWWDIR}/DokuWiki.tgz" "${DLFROM}/${DLFILE}"

# unpack it
cd "$WWWDIR" || exit 17
tar -xzf "DokuWiki.tgz"
rm "DokuWiki.tgz"

# move it into the right place, create config dirs
mv "dokuwiki-${RELEASE}" DokuWiki
HTACCESSLIST=$(find "${WWWDIR}/DokuWiki" -name '\.htacc*')
cd "$WORKDIR/DokuWiki/etc" || exit 18
mv "$OLDCONFDIR" "$WORKDIR/DokuWiki${NEWCONFDIR}"
cd "$WWWDIR/DokuWiki"
ln -s "../../..${NEWCONFDIR}" "conf"
# remove executable flags
find "$WWWDIR/DokuWiki" -type f -executable | xargs chmod -x
chmod +x $WWWDIR/DokuWiki/bin/*php

# write config for Apache 2.2 and 2.4
# delete .htaccess, move it into Apache's conf
cd "$WORKDIR/DokuWiki/etc" || exit 15
cat > 'apache2/conf.d/DokuWiki.conf' <<EOT
Alias /dokuwiki "/srv/www/DokuWiki"

<Directory "/srv/www/DokuWiki/">
    Options None
    AllowOverride All
    <IfModule mod_dir.c>
        DirectoryIndex doku.php index.html index.htm
    </IfModule>
    <IfModule mod_authz_core.c>
      # Apache 2.4
      Require all granted
    </IfModule>
    <IfModule !mod_authz_core.c>
      # Apache 2.2
      Order allow,deny
      Allow from all
    </IfModule>
</Directory>

EOT

for SUBDIR in $HTACCESSLIST; do
    RELDIR=${SUBDIR#${WORKDIR}/DokuWiki}
    RELDIR=${RELDIR%/.htacc*}
    echo "<Directory \"$RELDIR\">" >> "apache2/conf.d/DokuWiki.conf"
    cat "$SUBDIR"                  >> "apache2/conf.d/DokuWiki.conf"
    echo "</Directory>"            >> "apache2/conf.d/DokuWiki.conf"
    echo " "                       >> "apache2/conf.d/DokuWiki.conf"
    rm "$SUBDIR"
done
dos2unix -o 'apache2/conf.d/DokuWiki.conf.*'

cd "$WORKDIR" || exit 19
tar --strip-components=$NO_OF_COMP -cf "DokuWiki-${NEWNAME}.tar" DokuWiki
bzip2 "DokuWiki-${NEWNAME}.tar"