convert-dosbox-to-git.sh

!/bin/bash

set -euo pipefail

if [ -d dosbox ]; then
        echo "update"
        cd dosbox
        git svn fetch
else
        echo "clone"
        git svn clone -s --no-minimize-url https://svn.code.sf.net/p/dosbox/code-0/dosbox dosbox --no-metadata --authors-file=authors.txt --prefix=p/dosbox/code-0/
        cd dosbox
fi

# Create tags from SVN  
echo "tag"
git for-each-ref refs/remotes/p/dosbox/code-0/tags | cut -d / -f 7- | while read ref; do
        if ! git show-ref --tags ${ref} --quiet; then
                export GIT_COMMITTER_DATE=$(git log -n1 --format=format:"%ad" refs/remotes/p/dosbox/code-0/tags/${ref})
                export GIT_AUTHOR_DATE="${GIT_COMMITTER_DATE}"
                export GIT_COMMITTER_NAME=$(git log -n1 --format=format:"%an" refs/remotes/p/dosbox/code-0/tags/${ref})
                export GIT_AUTHOR_NAME="${GIT_COMMITTER_NAME}"
                export GIT_COMMITTER_EMAIL=$(git log -n1 --format=format:"%ae" refs/remotes/p/dosbox/code-0/tags/${ref})
                export GIT_AUTHOR_EMAIL="${GIT_COMMITTER_EMAIL}"
                git tag -a "${ref}" -m "${ref}" "refs/remotes/p/dosbox/code-0/tags/${ref}^1"
        fi
done

# Create branches
echo "branch"

for BRANCH in $(git branch -a | grep remotes/p/dosbox/code-0/ | grep -v "/tags/" | grep -v "/trunk" | grep -v " -> " | sed "s:^  remotes/::"); do
        SHORT_BRANCH=$(echo ${BRANCH} | sed -e "s:p\/dosbox\/code-0\/::")
        if ! git show-ref --heads ${SHORT_BRANCH} --quiet; then
                git branch ${BRANCH/p\/dosbox\/code-0\//} remotes/${BRANCH}
        fi
done

exit 1

echo "ignore"
if [ -f .svnignore ]; then
        git mv .svnignore .gitignore
        git commit .svnignore .gitignore -m "Convert .svnignore to .gitignore"
fi

echo "cleanup"
git config --remove-section svn
git config --remove-section svn-remote.svn

for BRANCH in $(git branch -a | grep remotes/svn/  | sed "s:^  remotes/::" ); do
        git branch -d -r ${BRANCH}
done