Add lint_package support to lintr

ale_linters/r/lintr.vim

@@ -1,13 +1,23 @@
-" Author: Michel Lang <michellang@gmail.com>, w0rp <devw0rp@gmail.com>
+" Author: Michel Lang <michellang@gmail.com>, w0rp <devw0rp@gmail.com>,
+"         Fenner Macrae <fmacrae.dev@gmail.com>
 " Description: This file adds support for checking R code with lintr.
 
 let g:ale_r_lintr_options = get(g:, 'ale_r_lintr_options', 'with_defaults()')
 " A reasonable alternative default:
 "   get(g:, 'ale_r_lintr_options', 'with_defaults(object_usage_linter = NULL)')
 
+
+let g:ale_r_lintr_lint_package = get(g:, 'ale_r_lintr_lint_package', 0)
+
 function! ale_linters#r#lintr#GetCommand(buffer) abort
+    if ale#Var(a:buffer, 'r_lintr_lint_package')
+        let l:lint_cmd = 'lint_package'
+    else
+        let l:lint_cmd = 'lint'
+    endif
+
     let l:cmd_string = 'suppressPackageStartupMessages(library(lintr));'
-    \   . 'lint(cache = FALSE, commandArgs(TRUE),'
+    \   . l:lint_cmd . '(cache = FALSE, commandArgs(TRUE),'
     \   . ale#Var(a:buffer, 'r_lintr_options') . ')'
 
     return ale#path#BufferCdString(a:buffer)

doc/ale-r.txt

@@ -16,5 +16,14 @@ g:ale_r_lintr_options                                   *g:ale_r_lintr_options*
   options. Consult the lintr documentation for more information.
 
 
+g:ale_r_lintr_lint_package                         *g:ale_r_lintr_lint_package*
+                                                   *b:ale_r_lintr_lint_package*
+  Type: |Number|
+  Default: `0`
+
+  When set to `1`, the file will be checked with `lintr::lint_package` instead
+  of `lintr::lint`. This prevents erroneous namespace warnings when linting 
+  package files.
+
 ===============================================================================
   vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:

test/command_callback/test_lintr_command_callback.vader

@@ -34,3 +34,15 @@ Execute(The lintr options should be configurable):
       \   .            'with_defaults(object_usage_linter = NULL))')
   \   . ' %t',
   \ ale_linters#r#lintr#GetCommand(bufnr(''))
+
+Execute(If the lint_package flag is set, lintr::lint_package should be called):
+  let b:ale_r_lintr_lint_package = 1
+
+  AssertEqual
+  \   'cd ' . ale#Escape(getcwd()) . ' && '
+  \   . 'Rscript -e '
+  \   . ale#Escape('suppressPackageStartupMessages(library(lintr));'
+      \    .           'lint_package(cache = FALSE, commandArgs(TRUE),'
+      \    .           'with_defaults())')
+  \   . ' %t',
+  \ ale_linters#r#lintr#GetCommand(bufnr(''))