#!/bin/bash

die() {

    echo $*

    exit 1

}

default_tag="qtwebkit-4.6-snapshot-20091003"

if [ $# -eq 0 ]; then

    tag="$default_tag"

elif [ $# -eq 1 ]; then

    tag=$1

else

    die "usage: $0 [commit (defaults to $default_tag)]"

fi

repository=`git config qtwebkit.url`

if [ -z "$repository" ]; then

    die "error: cannot locate webkit git repository. please run git config --global qtwebkit.url /path-or-url/to/webkit/repo"

fi

excluded_directories="LayoutTests JavaScriptGlue WebKitLibraries WebKitSite WebKitTools WebCore/platform/gtk WebCore/platform/chromium"

excluded_directories="$excluded_directories PageLoadTests"

excluded_directories="$excluded_directories BugsSite"

excluded_directories="$excluded_directories PlanetWebKit"

excluded_directories="$excluded_directories SunSpider"

excluded_directories="$excluded_directories WebKitExamplePlugins"

excluded_directories="$excluded_directories autotools"

excluded_directories="$excluded_directories JavaScriptCore/Makefile"

excluded_directories="$excluded_directories Makefile"

excluded_directories="$excluded_directories Makefile.shared"

excluded_directories="$excluded_directories GNUmakefile.am"

excluded_directories="$excluded_directories WebCore/Makefile"

excluded_directories="$excluded_directories WebKit/Makefile"

excluded_directories="$excluded_directories JavaScriptCore/GNUmakefile.am"

excluded_directories="$excluded_directories JavaScriptCore/Configurations"

excluded_directories="$excluded_directories JavaScriptCore/JavaScriptCore.exp"

excluded_directories="$excluded_directories JavaScriptCore/JavaScriptCore.xcodeproj"

excluded_directories="$excluded_directories JavaScriptCore/tests"

excluded_directories="$excluded_directories JavaScriptCore/API/tests"

excluded_directories="$excluded_directories JavaScriptCore/JavaScriptCore.vcproj"

excluded_directories="$excluded_directories JavaScriptCore/JavaScriptCore.gyp"

excluded_directories="$excluded_directories JavaScriptCore/wtf/wx"

excluded_directories="$excluded_directories JavaScriptCore/wtf/gtk"

excluded_directories="$excluded_directories JavaScriptCore/wtf/mac"

excluded_directories="$excluded_directories JavaScriptCore/wtf/win"

excluded_directories="$excluded_directories JavaScriptCore/wtf/chromium"

excluded_directories="$excluded_directories JavaScriptCore/wtf/haiku"

excluded_directories="$excluded_directories JavaScriptCore/wtf/android"

excluded_directories="$excluded_directories JavaScriptCore/wtf/brew"

excluded_directories="$excluded_directories WebCore/WebCore.vcproj"

excluded_directories="$excluded_directories WebCore/WebCore.gyp"

excluded_directories="$excluded_directories WebCore/DerivedSources.make"

excluded_directories="$excluded_directories WebCore/GNUmakefile.am"

excluded_directories="$excluded_directories WebCore/WebCore.base.exp"

excluded_directories="$excluded_directories WebCore/WebCore.PluginHostProcess.exp"

excluded_directories="$excluded_directories WebCore/WebCore.OrientationEvents.exp"

excluded_directories="$excluded_directories WebCore/WebCore.xcodeproj"

excluded_directories="$excluded_directories WebCore/Configurations"

excluded_directories="$excluded_directories WebCore/bridge/objc"

excluded_directories="$excluded_directories WebCore/bridge/testbindings.pro"

excluded_directories="$excluded_directories WebCore/bindings/objc"

excluded_directories="$excluded_directories WebCore/bindings/v8"

excluded_directories="$excluded_directories JavaScriptCore/icu"

excluded_directories="$excluded_directories WebCore/icu"

# remove CollatorICU from SOURCES in JavaScriptCore.pri first

#excluded_directories="$excluded_directories JavaScriptCore/wtf/unicode/icu"

excluded_directories="$excluded_directories WebCore/loader/mac"

excluded_directories="$excluded_directories WebCore/loader/win"

excluded_directories="$excluded_directories WebCore/loader/icon/wince"

excluded_directories="$excluded_directories WebCore/page/gtk"

excluded_directories="$excluded_directories WebCore/page/mac"

excluded_directories="$excluded_directories WebCore/page/wx"

excluded_directories="$excluded_directories WebCore/page/chromium"

excluded_directories="$excluded_directories WebCore/page/haiku"

excluded_directories="$excluded_directories WebCore/page/wince"

excluded_directories="$excluded_directories WebCore/page/android"

excluded_directories="$excluded_directories WebCore/page/brew"

excluded_directories="$excluded_directories WebCore/history/mac"

excluded_directories="$excluded_directories WebCore/history/android"

excluded_directories="$excluded_directories WebCore/editing/mac"

excluded_directories="$excluded_directories WebCore/editing/wx"

excluded_directories="$excluded_directories WebCore/editing/haiku"

excluded_directories="$excluded_directories WebCore/editing/android"

excluded_directories="$excluded_directories WebCore/editing/chromium"

excluded_directories="$excluded_directories WebCore/editing/gtk"

excluded_directories="$excluded_directories WebCore/platform/haiku"

excluded_directories="$excluded_directories WebCore/platform/android"

excluded_directories="$excluded_directories WebCore/platform/brew"

excluded_directories="$excluded_directories WebCore/platform/text/wx"

excluded_directories="$excluded_directories WebCore/platform/text/gtk"

excluded_directories="$excluded_directories WebCore/platform/text/chromium"

excluded_directories="$excluded_directories WebCore/platform/text/haiku"

excluded_directories="$excluded_directories WebCore/platform/text/android"

excluded_directories="$excluded_directories WebCore/platform/text/brew"

excluded_directories="$excluded_directories WebCore/platform/sql/chromium"

excluded_directories="$excluded_directories WebCore/manual-tests"

excluded_directories="$excluded_directories WebCore/platform/network/curl"

excluded_directories="$excluded_directories WebCore/platform/network/mac"

excluded_directories="$excluded_directories WebCore/platform/network/win"

excluded_directories="$excluded_directories WebCore/platform/network/soup"

excluded_directories="$excluded_directories WebCore/platform/network/chromium"

excluded_directories="$excluded_directories WebCore/platform/network/android"

excluded_directories="$excluded_directories WebCore/platform/network/brew"

excluded_directories="$excluded_directories WebCore/platform/graphics/cg"

excluded_directories="$excluded_directories WebCore/platform/graphics/cairo"

excluded_directories="$excluded_directories WebCore/platform/graphics/gtk"

excluded_directories="$excluded_directories WebCore/platform/graphics/wx"

excluded_directories="$excluded_directories WebCore/platform/graphics/mac"

excluded_directories="$excluded_directories WebCore/platform/graphics/skia"

excluded_directories="$excluded_directories WebCore/platform/graphics/chromium"

excluded_directories="$excluded_directories WebCore/platform/graphics/wince"

excluded_directories="$excluded_directories WebCore/platform/graphics/haiku"

excluded_directories="$excluded_directories WebCore/platform/graphics/brew"

excluded_directories="$excluded_directories WebCore/platform/image-decoders/bmp"

excluded_directories="$excluded_directories WebCore/platform/image-decoders/gif"

excluded_directories="$excluded_directories WebCore/platform/image-decoders/zlib"

excluded_directories="$excluded_directories WebCore/platform/image-decoders/png"

excluded_directories="$excluded_directories WebCore/platform/image-decoders/ico"

excluded_directories="$excluded_directories WebCore/platform/image-decoders/jpeg"

excluded_directories="$excluded_directories WebCore/platform/image-decoders/xbm"

excluded_directories="$excluded_directories WebCore/platform/image-decoders/skia"

excluded_directories="$excluded_directories WebCore/platform/image-decoders/haiku"

excluded_directories="$excluded_directories WebCore/platform/image-decoders/wx"

excluded_directories="$excluded_directories WebCore/platform/image-encoders/skia"

excluded_directories="$excluded_directories WebCore/plugins/gtk"

excluded_directories="$excluded_directories WebCore/plugins/chromium"

excluded_directories="$excluded_directories WebCore/plugins/wx"

excluded_directories="$excluded_directories WebCore/accessibility/chromium"

excluded_directories="$excluded_directories WebCore/accessibility/gtk"

excluded_directories="$excluded_directories WebCore/accessibility/mac"

excluded_directories="$excluded_directories WebCore/accessibility/win"

excluded_directories="$excluded_directories WebCore/accessibility/wx"

excluded_directories="$excluded_directories WebCore/storage/wince"

excluded_directories="$excluded_directories WebCore/storage/chromium"

excluded_directories="$excluded_directories WebCore/platform/wx"

excluded_directories="$excluded_directories WebCore/platform/wince"

excluded_directories="$excluded_directories WebKit/qt/Plugins"

excluded_directories="$excluded_directories WebKit/gtk"

excluded_directories="$excluded_directories WebKit/win"

excluded_directories="$excluded_directories WebKit/wx"

excluded_directories="$excluded_directories WebKit/cf"

excluded_directories="$excluded_directories WebKit/haiku"

excluded_directories="$excluded_directories WebKit/chromium"

excluded_directories="$excluded_directories WebKit/English.lproj WebKit/WebKit.xcodeproj"

excluded_directories="$excluded_directories WebCore/English.lproj"

exclude_with_exceptions_list="WebCore/platform/win/:WebCore/platform/win/SystemTimeWin.cpp\\|WebCore/platform/win/BitmapInfo.*"

excluded_directories="$excluded_directories WebKit/mac/Carbon"

excluded_directories="$excluded_directories WebKit/mac/ChangeLog"

excluded_directories="$excluded_directories WebKit/mac/ChangeLog-2002-12-03"

excluded_directories="$excluded_directories WebKit/mac/ChangeLog-2006-02-09"

excluded_directories="$excluded_directories WebKit/mac/ChangeLog-2007-10-14"

excluded_directories="$excluded_directories WebKit/mac/DefaultDelegates"

excluded_directories="$excluded_directories WebKit/mac/DOM"

excluded_directories="$excluded_directories WebKit/mac/ForwardingHeaders"

excluded_directories="$excluded_directories WebKit/mac/History"

excluded_directories="$excluded_directories WebKit/mac/icu"

excluded_directories="$excluded_directories WebKit/mac/Info.plist"

excluded_directories="$excluded_directories WebKit/mac/MigrateHeaders.make"

excluded_directories="$excluded_directories WebKit/mac/Misc"

excluded_directories="$excluded_directories WebKit/mac/Panels"

excluded_directories="$excluded_directories WebKit/mac/Plugins"

excluded_directories="$excluded_directories WebKit/mac/PublicHeaderChangesFromTiger.txt"

excluded_directories="$excluded_directories WebKit/mac/Resources"

excluded_directories="$excluded_directories WebKit/mac/Storage"

excluded_directories="$excluded_directories WebKit/mac/WebCoreSupport"

excluded_directories="$excluded_directories WebKit/mac/WebInspector"

excluded_directories="$excluded_directories WebKit/mac/WebKit.exp"

excluded_directories="$excluded_directories WebKit/mac/WebKit.order"

excluded_directories="$excluded_directories WebKit/mac/WebKitPrefix.h"

excluded_directories="$excluded_directories WebKit/mac/WebView"

exclude_with_exceptions_list="$exclude_with_exceptions_list WebKit/mac/Configurations/:WebKit/mac/Configurations/Version.xcconfig"

files_to_remove=""

files_to_remove="$files_to_remove WebKit/qt/Api/qwebnetworkinterface.cpp"

files_to_remove="$files_to_remove WebKit/qt/Api/qwebnetworkinterface.h"

files_to_remove="$files_to_remove WebKit/qt/Api/qwebnetworkinterface_p.h"

files_to_remove="$files_to_remove WebKit/qt/Api/qcookiejar.h"

files_to_remove="$files_to_remove WebKit/qt/Api/qcookiejar.cpp"

files_to_remove="$files_to_remove WebCore/rendering/RenderThemeMac.mm"

files_to_remove="$files_to_remove autogen.sh"

files_to_remove="$files_to_remove configure.ac"

files_to_remove="$files_to_remove WebKit.pro"

files_to_remove="$files_to_remove DerivedSources.pro"

files_to_remove="$files_to_remove WebKit/qt/QtLauncher/QtLauncher.pro"

files_to_remove="$files_to_remove WebKit/qt/QtLauncher/main.cpp"

files_to_remove="$files_to_remove WebKit/qt/QGVLauncher/QGVLauncher.pro"

files_to_remove="$files_to_remove WebKit/qt/QGVLauncher/main.cpp"

files_to_remove="$files_to_remove JavaScriptCore/AllInOneFile.cpp"

files_to_remove="$files_to_remove JavaScriptCore/JavaScriptCoreSources.bkl"

files_to_remove="$files_to_remove JavaScriptCore/jscore.bkl"

files_to_remove="$files_to_remove JavaScriptCore/jsc.pro"

files_to_remove="$files_to_remove WebCore/wscript"

files_to_remove="$files_to_remove WebCore/WebCore.ContextMenus.exp"

files_to_remove="$files_to_remove WebCore/WebCore.DragSupport.exp"

files_to_remove="$files_to_remove WebCore/WebCore.Inspector.exp"

files_to_remove="$files_to_remove WebCore/WebCoreSources.bkl"

files_to_remove="$files_to_remove WebCore/webcore-base.bkl"

files_to_remove="$files_to_remove WebCore/webcore-wx.bkl"

require_clean_work_tree() {

    # test if working tree is dirty

    git rev-parse --verify HEAD > /dev/null &&

    git update-index --refresh &&

    git diff-files --quiet &&

    git diff-index --cached --quiet HEAD ||

    die "Working tree is dirty"

}

which qmake >/dev/null 2>/dev/null

if [ "$?" != 0 ]; then

    die "abort: Could not locate qmake in your PATH"

fi

test -z "$(git rev-parse --show-cdup)" || {

       exit=$?

       echo >&2 "You need to run this command from the toplevel of the working tree."

       exit $exit

}

echo "checking working tree"

require_clean_work_tree

revCount=`git ls-remote $repository | grep $tag | awk '{print $1}' | wc -l`

if [ "$revCount" != 1 ]; then

    die "Cannot parse $tag into a revision. It seems ambiguous".

fi

rev=`git ls-remote $repository | grep -E "^.+$tag$" | awk '{print $1}'`

tarball=`mktemp /tmp/webkit-snapshot.tar.XXXXXX` || exit 1

echo "creating $tarball"

echo "archiving webkit from $repository $tag ( $rev )"

git archive --remote=$repository $rev > $tarball || exit 1

echo "removing unwanted files and directories"

for dir in $excluded_directories; do

    echo "    removing $dir"

    tar --delete --file=$tarball $dir

done

for item in $exclude_with_exceptions_list; do

    dir=`echo $item | awk -F : '{print $1}'`

    include=`echo $item | awk -F : '{print $2}'`

    echo "    removing $dir except $include"

    files=`tar --list --file=$tarball $dir | grep -v -E "^$dir\$" | grep -v $include`

    tar --delete --file=$tarball $files

done

for file in $files_to_remove; do

    echo "    removing $file"

    tar --delete --file=$tarball $file

done

echo "done!"

srcdir=src/3rdparty/webkit

absSrcDir=$PWD/$srcdir

localDiff=

lastImportRevison=

echo "replacing $srcdir"

if [  -d $srcdir ]; then

    lastImportRevison=`tail -n 1 src/3rdparty/webkit/VERSION`

    git ls-files $srcdir | xargs rm

    git ls-files -z src/3rdparty/webkit | git update-index --force-remove -z --stdin

    lastImport=`git rev-list --max-count=1 HEAD -- src/3rdparty/webkit/VERSION`

    changes=`git rev-list --no-merges --reverse $lastImport.. -- src/3rdparty/webkit`

    localDiff=/tmp/webkit_patch

    echo -n>$localDiff

    for change in $changes; do

        echo "Saving commit $change"

        git show -p --stat "--pretty=format:%nFrom %H Mon Sep 17 00:00:00 2001%nFrom: %an <%ae>%nDate: %ad%nSubject: Re-apply change $change by %an%n%n%s%n%b%n" $change -- src/3rdparty/webkit >> $localDiff

        echo "-- " >> $localDiff

        echo "1.2.3" >> $localDiff

        echo >> $localDiff

    done

    if [ -s $localDiff ]; then

        echo "Saved locally applied patches to $localDiff"

    else

        localDiff=""

    fi

else

    mkdir -p $srcdir

fi

(cd $srcdir && tar xf $tarball)

git add $srcdir

echo "generating extra sources"

(

  for proj in JavaScriptCore WebCore; do

      cd $absSrcDir/$proj &&

      qmake -o Makefile DerivedSources.pro &&

      make generated_files &&

      perl -pi -e "s,$absSrcDir/,,g" generated/*.cpp generated/*.h &&

      git add generated &&

      rm DerivedSources.pro Makefile &&

      cd ..

  done

)

rm -rf $srcdir/WebKitBuild

cat >$srcdir/VERSION <<EOT

This is a snapshot of the Qt port of WebKit from

        git://gitorious.org/qtwebkit/qtwebkit.git

The commit imported was from the

        $tag branch/tag

and has the sha1 checksum

        $rev

EOT

git add $srcdir/VERSION

git diff-files --name-only -z | git update-index --remove -z --stdin

echo "removing $tarball"

rm -f $tarball

cat >commitlog.txt <<EOT

Updated WebKit from $repository to $tag ( $rev )

EOT

if [ -d "$repository/.git" -a -n "$lastImportRevison" ]; then

    echo >>commitlog.txt

    echo "Changes in WebKit/qt since the last update:" >>commitlog.txt

    echo >>commitlog.txt

    git --git-dir=$repository/.git diff $lastImportRevison $rev -- WebKit/qt/ChangeLog | sed -n -e "s,^\+\(.*\),\1,p" >>commitlog.txt

fi

echo "Changes:"

echo

git --no-pager diff --name-status --cached $srcdir

echo

echo "Wrote commitlog.txt. Use with"

echo

echo "    git commit -e -F commitlog.txt"

echo

echo "to commit your changes"

if [ -n "$localDiff" ]; then

    echo

    echo "The changes that were locally stored in Perforce are now stored as a git patch in $localDiff"

    echo "You may want to appy them with"

    echo

    echo "    git am -3 $localDiff"

    echo

fi