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#!/bin/bash -e
# This is a tool to automatically generate and ship client updates.
# It is entirely self-contained, storing its own state in the git repo.
# It is called by running 'make updates' in server-data.
# It also supports manually calls for maintenance work.
# TODO: make auto-mode work with music too.
# local branch to keep update info on
# will be created on first run; updated thereafter
branch=update-zips
# must already exist
# must NOT be a relative path
output=~/www/updates
function apply_function()
{
$1 misc *.* COPYING rules/
$1 graphics-emotes graphics/emotes/
$1 graphics-images graphics/images/ graphics/guiicons/
$1 graphics-items graphics/items/
$1 graphics-minimaps graphics/minimaps/
$1 graphics-particles graphics/particles/
$1 graphics-skills graphics/skills/
$1 graphics-sprites graphics/sprites/
$1 graphics-tiles graphics/tiles/
$1 items items/
$1 maps maps/
$1 monsters monsters/
$1 npcs npcs/
$1 sfx sfx/
$1 tilesets tilesets/
}
function add_resource()
{
pushd $output >/dev/null
adler32 $1 | tee -a resources2.txt | {
read name hash
chmod a+r $name
sed '/<\/updates>/i <update type="data" file="'$name'" hash="'$hash'" />' -i resources.xml
}
popd >/dev/null
}
function add_music()
{
pushd $output >/dev/null
adler32 $1 | {
read name hash
chmod a+r $name
sed '/<\/updates>/i <update type="music" required="no" file="'$name'" hash="'$hash'" />' -i resources.xml
}
popd >/dev/null
}
function do_initial_zip()
{
zip=$1-$this_update.zip; shift
git ls-files --with-tree=HEAD -- "$@" \
| zip -q $output/$zip -@
add_resource $zip
}
function do_initial_music()
{
zip=music-$this_update.zip
( cd music/ ; git ls-files --with-tree=HEAD ) \
| sed 's:^:music/:' \
| zip -q $output/$zip -@
add_music $zip
}
function git_diff_tree()
{
git diff-tree -r --diff-filter=AM "$@"
}
function do_delta_zip()
{
zip=$1-$last_update..$this_update.zip; shift
if git_diff_tree --quiet $last_update $this_update -- "$@"
then
return
fi
git_diff_tree --name-only $last_update $this_update -- "$@" \
| zip -q $output/$zip -@
add_resource $zip
}
function do_delta_music()
{
zip=music-$last_update..$this_update.zip
if (cd music; git_diff_tree --quiet $last_update $this_update )
then
return
fi
(cd music; git_diff_tree --name-only $last_update $this_update ) \
| sed 's:^:music/:' \
| zip -q $output/$zip -@
add_music $zip
}
function do_initial_zips()
{
apply_function do_initial_zip
}
function do_delta_zips()
{
apply_function do_delta_zip
}
function main()
{
if ! test -d $output
then
echo 'Fatal error: output directory does not exist'
echo "$output"
return 1
fi
if ! test -f $output/resources.xml
then
(
echo '<?xml version="1.0"?>'
echo '<updates>'
echo '</updates>'
) > $output/resources.xml
fi
this_update=$(git rev-parse --short HEAD)
if ! last_update=$(git rev-parse --short $branch 2>/dev/null)
then
echo 'Doing initial updates'
do_initial_zips
elif test "$this_update" = "$last_update"
then
echo 'No commits since last update generation ...'
else
echo 'Doing incremental updates'
do_delta_zips
fi
git branch -f $branch
this_update=$(cd music; git rev-parse --short HEAD)
if ! last_update=$(cd music; git rev-parse --short $branch 2>/dev/null)
then
echo 'Doing initial music updates'
do_initial_music
elif test "$this_update" = "$last_update"
then
echo 'No commits since last music update generation ...'
else
echo 'Doing incremental music updates'
do_delta_music
fi
( cd music; git branch -f $branch )
}
if test "$0" = "$BASH_SOURCE"
then
echo 'Generating updates automatically'
main
else
echo 'sourcing detected - you can do manual updates'
fi
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