import

#!/bin/sh

set -e

mydir="$(cd "$(dirname "$0")" && pwd)"
cd "$mydir"

SQLSRC='http://sqlite.org/src'

for util in ./fossil ./git-export-filter git; do
  if ! command -v $util > /dev/null; then
    echo Missing $util '(did you run the build script?)' >&2
    exit 1
  fi
done

if ! [ -e sqlite.fsl ]; then
  echo "Cloning $SQLSRC into sqlite.fsl" >&2
  ./fossil clone "$SQLSRC" sqlite.fsl
else
  echo "Updating sqlite.fsl from $SQLSRC" >&2
  ./fossil pull -R sqlite.fsl
fi

created=
if ! [ -r sqlite.git/HEAD ]; then
  echo "Creating initial sqlite.git repository" >&2
  git --git-dir=sqlite.git init --bare
  created=1
fi

echo "Exporting from sqlite.fsl into sqlite.git" >&2
./fossil export --git sqlite.fsl | \
./git-export-filter --authors-file sqlite_authors --require-authors \
  --trunk-is-master --convert-tagger tagger | \
git --git-dir=sqlite.git fast-import --force

if [ -n "$created" ]; then
  echo "Compacting sqlite.git" >&2
  git --git-dir=sqlite.git gc --aggressive --prune=now
fi