which texlive bit to get a particular package

[Joshua Root]

> I have once again lost track of the list of which packages are installed with various texlive ports.  In particular, I expected that texlive-math-science would contain esint.sty.  It apparently does not.  How now I need to figure out what else I need to install to get that package?  I thought maybehttps://ports.macports.org/port/texlive-math-science/details/ would list them, but if it does, I'm not seeing it.  So how do I figure out what else I need to install to get it?  I thought I'd found a list of what package went into which MacPorts name but I have no idea where now.

To find which port installs a given file before you have installed it:

1. Go to <https://ports.macports.org/search/> (this is the "Ports" link 
in the main menu at the top of the page)

2. Enter the file name in the "File installed:" field on the left and 
click Apply.

In this case, you should find that esint.sty is installed by 
texlive-latex-extra.

- Josh