How to put `marginyear` outside the margin?

[xu-cheng]

I like the idea to print the publication year on the left of the publication list once a new year starts. However, is it possible to put it outside the margin? That is increasing the left margin of the publication list and making the printed year align with the start of the paragraph.

[xu-cheng]

To illustrate, the current behaviour looks like this:

       [text]

[year] [pub1]
       [pub2]
[year] [pub3]
       [pub4]

       [text]

And I am wonder how to achieve the following style:

       [text]

       [year] [pub1]
              [pub2]
       [year] [pub3]
              [pub4]

       [text]

[jspitz]

It is possible with some redefinitions:

\renewbibmacro*{date}{}
\renewbibmacro*{date+extradate}{}
\renewbibmacro*{issue+date}{}
\renewbibmacro*{bpl:year+labelyear}{\nopunct\ignorespaces}
\newcommand*{\bibyear}{}

\defbibenvironment{bibliography}
{\list
    {\iffieldequals{year}{\bibyear}
        {}
        {\printfield{year}%
         \savefield{year}{\bibyear}}}
    {\setlength{\topsep}{0pt}%
     \setlength{\itemsep}{\bibitemsep}%
     \leftmargin\labelwidth%
     \advance\leftmargin\labelsep}}
{\endlist}
{\item}

[xu-cheng]

Thanks for the solution. It works great.