Method appendCommit

programs/git-import/git-import.cpp:495–532

    WriteBufferFromFile line_changes{"line_changes.tsv"};

    void appendCommit(const Commit & commit, const CommitDiff & files)
    {
        /// commits table
        {
            auto & out = commits;

            commit.writeTextWithoutNewline(out);
            writeChar('\n', out);
        }

        for (const auto & elem : files)
        {
            const FileChange & file_change = elem.second.file_change;

            /// file_changes table
            {
                auto & out = file_changes;

                file_change.writeTextWithoutNewline(out);
                writeChar('\t', out);
                commit.writeTextWithoutNewline(out);
                writeChar('\n', out);
            }

            /// line_changes table
            for (const auto & line_change : elem.second.line_changes)
            {
                auto & out = line_changes;

                line_change.writeTextWithoutNewline(out);
                writeChar('\t', out);
                file_change.writeTextWithoutNewline(out);
                writeChar('\t', out);
                commit.writeTextWithoutNewline(out);
                writeChar('\n', out);
            }
        }
    }

    void finalize()
    {