library(optparse, quietly = T)
options(stringsAsFactors = F)
p <- OptionParser(
usage = "\n%prog [options] code_file",
description = "\nR Code Linter\n\nA wrapper script for the lintr R package.\n\nChecks an R code file for style consistency with a specified style guide. By default it uses a modified version of Google's R style guide.",
prog = "Rscript lint.R"
)
p <- add_option(
object = p,
opt_str = c("-c", "--config"),
default = NULL,
type = "character",
help = "A .lintr DCF file that specifies the linters to use."
)
argv <- parse_args(p, positional_arguments = 1)
config_file <- argv$options$config
code_file <- argv$args
if (is.null(config_file)) {
config_file <- normalizePath("tests/code_linting/r/lintr/.lintr")
} else {
config_file <- normalizePath(config_file)
}
cat("\nUsing .lintr file", config_file, "...\n")
if (!file.exists(config_file)) {
warnings(
paste0(
"Default .lintr file could not be found at ",
config_file,
". Reverting to default lintr package settings"
)
)
}
options(lintr.linter_file = config_file)
cat("\nLinting file", code_file, "...\n\n")
lintr::lint(code_file)
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