git-grep

#!/usr/bin/env bash
#
# Create a temporary directory
temp_dir=$(mktemp -d)

# Store the list of existing worktree directories
existing_worktrees=$(git worktree list --porcelain | grep 'worktree' | awk '{print $2}')

# Ensure the temporary directory is deleted and only newly created worktree directories are removed when the script exits
cleanup() {
  rm -rf "$temp_dir"
  new_worktrees=$(git worktree list --porcelain | grep 'worktree' | awk '{print $2}')
  for new_worktree in $new_worktrees; do
    if ! echo "$existing_worktrees" | grep -q -F "$new_worktree"; then
      git worktree remove "$new_worktree"
    fi
  done
}
trap cleanup EXIT

git grep -n "$@" $(git rev-list --all) | awk -F: '{print $1":"$2":"$3}' |
  fzf --cycle -i -e --no-multi --ansi \
    --preview '
    COMMIT=$(echo {} | cut -d: -f1);
    FILE=$(echo {} | cut -d: -f2);
    LINE=$(echo {} | cut -d: -f3);
    TMPFILE="'"$temp_dir"'/$COMMIT/$FILE";
    mkdir -p "$(dirname "$TMPFILE")";
    git show $COMMIT:$FILE > "$TMPFILE";
    bat --color always --highlight-line=$LINE --line-range $LINE:+100 "$TMPFILE"' \
    --preview-window=up:60% \
    --bind 'enter:execute:
    TMPFILE_LINE="'"$temp_dir"'/$(echo {} | sed "s#:#/#")";
    COMMIT=$(echo {} | cut -d: -f1);
    WORKTREE="'"$temp_dir"'/$COMMIT"
    test "$WORKTREE" != / && rm -rf "$WORKTREE"
    git worktree add -f "$WORKTREE" $COMMIT
    code "$WORKTREE"
    code --goto "$TMPFILE_LINE"' \
    --bind 'ctrl-p:toggle-preview' \
    --bind 'ctrl-g:preview-page-up,ctrl-h:preview-page-down' \
    --header "enter: vscode, C-p:toggle, C-g:up, C-h:down"