[R] system.file(...) self-referencing the containing package

[William Dunlap]

Every package has in it, after it is installed, a character object
called ".packageName" containing its name.  It is not exported from
the package.  Functions in your package can refer to it as just
.packageName.
Bill Dunlap
TIBCO Software
wdunlap tibco.com


On Thu, Dec 3, 2015 at 5:28 PM, Murat Tasan <mmuurr at gmail.com> wrote:
> In a package I'm writing, I'm placing all SQL code here:
> /inst/sql/
>
> And so when referring to these blocks of code from the package's R
> code, I do something like so:
>
> system.file("sql", "my_example_file.sql", package = "ThisPackage",
> mustWork = TRUE)
>
> But, referring to the package itself with the string "ThisPackage" is
> annoying and somewhat brittle... if the package were ever to change
> names (e.g. during development), I'll have to replace all such calls
> with the new package name.
> And generally referring to the package containing the code itself by
> name seems inelegant.
>
> Anyone know of a safe way to reference additional files in a package,
> from within that package's code, that doesn't require specifying the
> name of the package as a string?
>
> Cheers,
>
> -Murat
>
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