prerequisites: Return given set of properties of all rules in a list
In rmake: Makefile Generator for R Analytical Projects

Description Usage Arguments Details Value Author(s) See Also Examples

targets() returns a character vector of all unique values of target properties, prerequisites() returns depends and script properties, and tasks() returns task properties of the given rule() or list of rules.

prerequisites(x)

targets(x)

tasks(x)

terminals(x)

`x`	An instance of the `rmake.rule` class or a list of such instances

terminals() returns only such targets that are not prerequisites to any other rule.

A character vector of unique values of the selected property obtained from all rules in x

Michal Burda

rule()

job <- 'data.csv' %>>%
  rRule('process.R', task='basic') %>>%
  'data.rds' %>>%
  markdownRule('report.Rnw', task='basic') %>>%
  'report.pdf'

prerequisites(job)    # returns c('process.R', data.csv', 'report.Rnw', 'data.rds')
targets(job)          # returns c('data.rds', 'report.pdf')
tasks(job)            # returns 'basic'