buildChapterGraph: Build the chapter dependency graph

In rebook: Re-using Content in Bioconductor Books

Description

Build the dependency graph between chapter based on their extractCached calls to each other.

Usage

buildChapterGraph(dir, recursive = TRUE, pattern = "\\.Rmd$")

Arguments

dir	String containing the path to the directory containing Rmarkdown reports. This is searched recursively for all files ending in ".Rmd".
recursive	Further arguments to pass to list.files when searching for Rmarkdown reports.
pattern	Further arguments to pass to list.files when searching for Rmarkdown reports.

Value

A directed graph object from the igraph package, where each node is a chapter and is connected to its dependencies by an edge.

Author(s)

Aaron Lun

Examples

dir <- tempfile()
dir.create(dir)

tmp1 <- file.path(dir, "alpha.Rmd")
write(file=tmp1, "```{r, echo=FALSE, results='asis'}
rebook::chapterPreamble()
```

```{r}
rodan <- 1
```")

tmp2 <- file.path(dir, "bravo.Rmd")
write(file=tmp2, "```{r, echo=FALSE, results='asis'}
rebook::chapterPreamble()
```

```{r}
extractCached('alpha.Rmd')
```")

# Building the chapter graph:
g <- buildChapterGraph(dir)
plot(g)
 

rebook documentation built on Nov. 8, 2020, 4:56 p.m.