Git -> SVN sync script

sync.sh

#!/bin/bash

if [[ $# != 1 && $# != 2 ]]
then
    echo "$0 <path to git repository> [tree-ish]"
    exit 1
fi

msg() {
    echo -e -n "\e[32;1m==>\e[0m "
    echo "$1"
}

stage() {
    echo
    msg "$1"
}

MODULE_PATH="$1"
if [[ -z "$2" ]]
then
    TREEISH="HEAD"
else
    TREEISH="$2"
fi

########################################
stage "Clean workspace"
svn revert -R .

########################################
stage "Sync target"
(GIT_DIR=$MODULE_PATH/.git git log $TREEISH -1) || exit 1

########################################
stage "Sync modification"
GIT_EXPORTED_DIR=`mktemp -d`
trap "rm -rf $GIT_EXPORTED_DIR" EXIT
(GIT_DIR=$MODULE_PATH/.git git archive $TREEISH | (cd $GIT_EXPORTED_DIR && tar xf -)) || exit 1
rsync -avr --delete --exclude=.svn --exclude=sync.sh $GIT_EXPORTED_DIR/ . || exit 1
rm -rf $GIT_EXPORTED_DIR
trap - EXIT

########################################
stage "Sync add/rm files"
svn status | grep "^!" | cut -c 9- | xargs --no-run-if-empty svn rm
svn status | grep "^?" | cut -c 9- | xargs --no-run-if-empty svn add

########################################
stage "Check SVN status"
svn status

########################################
stage "Commit message"
SVN_COMMIT_MSG=`mktemp`
trap "rm -f $SVN_COMMIT_MSG" EXIT
echo "Import from internal Git repository" >> $SVN_COMMIT_MSG
echo >> $SVN_COMMIT_MSG
GIT_DIR=$MODULE_PATH/.git git log $TREEISH -1 >> $SVN_COMMIT_MSG
cat $SVN_COMMIT_MSG

########################################
stage "Commit automatically? [Y/n]"
echo -e -n "\e[33;1m==>\e[0m "
read
if [[ -z "$REPLY" || "$REPLY" == "Y" || "$REPLY" == "y" ]]
then
    LC_ALL="" LC_CTYPE="zh_CN.GB18030" svn commit -F $SVN_COMMIT_MSG || exit 1
fi

########################################
stage "Done"
rm -f $SVN_COMMIT_MSG
trap - EXIT

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