needs_rebuild: Check which files need to be rebuilt

In jonathan-g/blogdownDigest: Extends Blogdown to Track Changed Source Files using Digests

Description

needs_rebuild returns a vector of logicals indicating which files need to be rebuilt, based on whether the file has changed.

Usage

needs_rebuild(current_digest, current_dest_digest, old_digest, old_dest_digest)

Arguments

current_digest	A character vector containing digests of the current source files (.Rmd or .rmarkdown').
current_dest_digest	A character vector containing digests of the current destination (output) files (.html'). NA for destination files that do not exist.
old_digest	The stored digest for the source file from the last time the site was built. NA if the source file did not exist at the time of the last build.
old_dest_digest	A character vector containing stored digests for the destination files from the last time the site was built. NA for destination files that did not exist after the last build.

Details

This function compares digests of current files to stored digests in order to tell whether the source file needs to be rebuilt. If the digests are not equal, then the file has changed. If a digest is missing, then the source file is new or the output file has been deleted and in either case, the source file needs to be rebuilt.

Value

A vector of logicals indicating whether the destination (output) files are out of date relative to the source files.

If a destination file is missing or if any of the digests don't match, then the file needs to be rebuilt.

See Also

digests.

jonathan-g/blogdownDigest documentation built on Jan. 23, 2021, 10:52 p.m.