+}
+
+delete() {
+ cd "$VCSH_BASE" || fatal "could not enter '$VCSH_BASE'" 11
+ use
+ info "This operation WILL DETROY DATA!"
+ files=$(git ls-files)
+ echo "These files will be deleted:
+
+$files
+
+AGAIN, THIS WILL DELETE YOUR DATA!
+To continue, type 'Yes, do as I say'"
+ read answer
+ [ "x$answer" = 'xYes, do as I say' ] || exit 16
+ for file in $files; do
+ rm -f $file || info "could not delete '$file', continuing with deletion"
+ done
+ rm -r "$GIT_DIR" || error "could not delete '$GIT_DIR'"
+}
+
+enter() {
+ hook pre-enter
+ use
+ $SHELL
+ hook post-enter
+}
+
+git_dir_exists() {
+ [ -d "$GIT_DIR" ] || fatal "no repository found for '$VCSH_REPO_NAME'" 12
+}
+
+hook() {
+ for hook in $VCSH_HOOK_D/$1* $VCSH_HOOK_D/$VCSH_REPO_NAME.$1*; do
+ [ -x "$hook" ] || continue
+ info "executing '$hook'"
+ "$hook"
+ done
+}
+
+init() {
+ [ ! -e "$GIT_DIR" ] || fatal "'$GIT_DIR' exists" 10
+ export GIT_WORK_TREE="$VCSH_BASE"
+ mkdir -p "$GIT_WORK_TREE" || fatal "could not create '$GIT_WORK_TREE'" 50
+ cd "$GIT_WORK_TREE" || fatal "could not enter '$GIT_WORK_TREE'" 11
+ git init
+ setup
+}
+
+list() {
+ for repo in "$VCSH_REPO_D"/*.git; do
+ [ -d "$repo" ] && [ -r "$repo" ] && echo $(basename "$repo" .git)
+ done
+}
+
+get_files() {
+ export GIT_DIR="$VCSH_REPO_D/$VCSH_REPO_NAME.git"
+ git ls-files
+}
+
+list_tracked() {
+ for VCSH_REPO_NAME in $(list); do
+ get_files
+ done | sort -u
+}
+
+list_tracked_by() {
+ use
+ git ls-files | sort -u
+}
+
+rename() {
+ git_dir_exists
+ [ -d "$GIT_DIR_NEW" ] && fatal "'$GIT_DIR_NEW' exists" 54
+ mv -f "$GIT_DIR" "$GIT_DIR_NEW" || fatal "Could not mv '$GIT_DIR' '$GIT_DIR_NEW'" 52
+
+}
+
+run() {
+ hook pre-run
+ use
+ $VCSH_EXTERNAL_COMMAND
+ hook post-run
+}
+
+setup() {
+ hook pre-setup
+ use
+ git config core.worktree "$GIT_WORK_TREE"
+ git config core.excludesfile ".gitignore.d/$VCSH_REPO_NAME"
+ git config vcsh.vcsh 'true'
+ [ -e "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME" ] && git add -f "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME"
+ hook post-setup
+}
+
+use() {
+ git_dir_exists
+ export GIT_WORK_TREE="$(git config --get core.worktree)"
+ export VCSH_DIRECTORY="$VCSH_REPO_NAME"
+}
+
+which() {
+ for VCSH_REPO_NAME in $(list); do
+ for VCSH_FILE in $(get_files); do
+ echo $VCSH_FILE | grep -q "$VCSH_COMMAND_PARAMETER" && echo "$VCSH_REPO_NAME: $VCSH_FILE"
+ done
+ done | sort -u
+}
+
+write_gitignore() {
+ use
+ cd "$VCSH_BASE" || fatal "could not enter '$VCSH_BASE'" 11
+ gitignores=$(for file in $(git ls-files); do
+ while true; do
+ echo $file; new="${file%/*}"
+ [ "$file" = "$new" ] && break
+ file="$new"
+ done;
+ done | sort -u)
+ tempfile=$(mktemp) || fatal "could not create tempfile" 51
+ echo '*' > "$tempfile" || fatal "could not write to '$tempfile'" 57
+ for gitignore in $gitignores; do
+ echo "$gitignore" | sed 's/^/!/' >> "$tempfile" || fatal "could not write to '$tempfile'" 57
+ if [ x$VCSH_GITIGNORE = x'recursive' ] && [ -d "$gitignore" ]; then
+ { echo "$gitignore/*" | sed 's/^/!/' >> "$tempfile" || fatal "could not write to '$tempfile'" 57; }
+ fi
+ done
+ if diff -N "$tempfile" "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME" > /dev/null; then
+ rm -f "$tempfile" || error "could not delete '$tempfile'"
+ exit
+ fi
+ if [ -e "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME" ]; then
+ info "'$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME' differs from new data, moving it to '$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME.bak'"
+ mv -f "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME" "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME.bak" ||
+ fatal "could not move '$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME' to '$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME.bak'" 53
+ fi
+ mv -f "$tempfile" "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME" ||
+ fatal "could not move '$tempfile' to '$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME'" 53
+}
+
+if [ ! "x$VCSH_GITIGNORE" = 'xexact' ] && [ ! "x$VCSH_GITIGNORE" = 'xrecursive' ]; then
+ fatal "'\$VCSH_GITIGNORE' must be either 'exact' or 'recursive'" 1
+fi