Add 'dockerfile_hadolint_options' config setting (#4353)

- Add this option so command line arguments can be supplied to hadolint
- This will be respected when running in docker and via the executable
- Preserve the --no-color and - flags, and add these to the list
- Add to docs and tests

1 files changed, 18 insertions, 2 deletions

diff --git a/test/test_dockerfile_hadolint_linter.vader b/test/test_dockerfile_hadolint_linter.vader
index 6e02b212..ba7e2187 100644
--- a/test/test_dockerfile_hadolint_linter.vader
+++ b/test/test_dockerfile_hadolint_linter.vader
@@ -19,6 +19,7 @@ After:
   Restore
   silent! unlet b:ale_dockerfile_hadolint_use_docker
   silent! unlet b:ale_dockerfile_hadolint_docker_image
+  silent! unlet b:ale_dockerfile_hadolint_options
 
 
 Execute(linter honors ..._use_docker correctly):
@@ -55,15 +56,30 @@ Execute(command is correct when using docker):
   let b:ale_dockerfile_hadolint_use_docker = 'always'
 
   AssertEqual
-  \ "docker run --rm -i hadolint/hadolint hadolint --no-color -",
+  \ "docker run --rm -i hadolint/hadolint hadolint  --no-color -",
   \ ale_linters#dockerfile#hadolint#GetCommand(bufnr(''))
 
+Execute(command is correct when using docker and supplying options):
+  let b:ale_dockerfile_hadolint_use_docker = 'always'
+  let b:ale_dockerfile_hadolint_options = '--ignore DL3006'
+
+  AssertEqual
+  \ "docker run --rm -i hadolint/hadolint hadolint --ignore DL3006 --no-color -",
+  \ ale_linters#dockerfile#hadolint#GetCommand(bufnr(''))
 
 Execute(command is correct when not docker):
   let b:ale_dockerfile_hadolint_use_docker = 'never'
 
   AssertEqual
-  \ "hadolint --no-color -",
+  \ "hadolint  --no-color -",
+  \ ale_linters#dockerfile#hadolint#GetCommand(bufnr(''))
+
+Execute(command is correct when not docker and supplying options):
+  let b:ale_dockerfile_hadolint_use_docker = 'never'
+  let b:ale_dockerfile_hadolint_options = '--ignore DL3006'
+
+  AssertEqual
+  \ "hadolint --ignore DL3006 --no-color -",
   \ ale_linters#dockerfile#hadolint#GetCommand(bufnr(''))
 
 Execute(test warnings from hadolint):