Digest: Digest files from (digest package)

In adapr: Implementation of an Accountable Data Analysis Process

Description

Compute file hash without checking file.access

Usage

Digest(object = NULL, algo = checkAdaprHashAlgo(), serialize = FALSE,
  file = TRUE, length = Inf, skip = "auto", ascii = FALSE,
  raw = FALSE)

Arguments

object	R object or file
algo	digest hash algorithm
serialize	FALSE allows hash comparison of known output
file	logical TRUE iff object is file
length	Size of object/file to hash
skip	How many input bytes to skip for computing hash
ascii	ASCII or binary compression
raw	logical digest output in binary form

Details

Uses digest from package "digest". Authors Dirk Eddelbuettel [e-mail] for the R interface; Antoine Lucas for the integration of crc32; Jarek Tuszynski for the file-based operations; Henrik Bengtsson and Simon Urbanek for improved serialization patches; Christophe Devine for the hash function implementations for sha-1, sha-256 and md5; Jean-loup Gailly and Mark Adler for crc32; Hannes Muehleisen for the integration of sha-512; Jim Hester for the integration of xxhash32, xxhash64 and murmur32.

Value

The filehash

Examples

## Not run: 
 file0 <- file.path(pullSourceInfo("adaprHome")$project.path,
 project.directory.tree$analysis,"read_data.R")
 Digest(file=file0)

## End(Not run) 

adapr documentation built on May 1, 2019, 7:05 p.m.