hadley/vignettepaths

The vignettepaths project is a small diagnostic tool built for R package developers who write vignettes, which are tutorial-style documents bundled with R packages. It helps you figure out what the actual working directory is when a vignette or article runs, so you can correctly locate files and avoid path errors. When you write a vignette, it can be tricky to know exactly where your code is "looking" when it tries to read or write files. This tool examines and reports those working directories, taking the guesswork out of the process. Instead of manually debugging path issues by trial and error, you can use this package to see exactly how the system resolves file locations during document builds. This is most useful for R package authors who include long-form documentation or tutorials with their code. For example, if your vignette needs to load a sample dataset or generate plots saved to specific folders, you need to know the exact path structure to make it work. Developers who maintain complex packages with multiple articles and datasets would use this to ensure their tutorials run reliably for end users who download and build the package. The project does not include a detailed README, so specific setup instructions, advanced configuration options, and the inner workings of how it performs the examination are not documented. It is a highly focused utility designed to solve one specific annoyance for R developers.