Support tflint >=0.47.0 (#351)

Adaptation of #350, using `target: ${parent}` to better achieve the
`--chdir` behavior recommended by
terraform-linters/tflint#1687

---------

Co-authored-by: Piotr Roszatycki <[email protected]>

linters/tflint/plugin.yaml

@@ -20,6 +20,16 @@ lint:
     - name: tflint
       files: [terraform]
       commands:
+        - name: lint
+          output: sarif
+          prepare_run: tflint --init
+          run: tflint --format=sarif --chdir=${target} --force
+          success_codes: [0, 1, 2]
+          read_output_from: stdout
+          target: ${parent}
+          run_linter_from: root_directory
+          run_from_root_target: .tflint.hcl
+          version: ">=0.47.0"
         - name: lint
           output: sarif
           prepare_run: tflint --init

linters/tflint/test_data/tflint_v0.35.0_CUSTOM.check.shot

@@ -1,43 +1,43 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
 exports[`Testing linter tflint test CUSTOM 1`] = `
-Object {
-  "issues": Array [
-    Object {
+{
+  "issues": [
+    {
       "code": "aws_instance_invalid_type",
       "column": "19",
       "file": "aws.tf",
       "issueClass": "ISSUE_CLASS_NEW",
       "level": "LEVEL_HIGH",
       "line": "2",
       "linter": "tflint",
-      "message": "\\"t1.2xlarge\\" is an invalid value as instance_type",
+      "message": ""t1.2xlarge" is an invalid value as instance_type",
       "targetType": "terraform",
     },
-    Object {
+    {
       "code": "aws_instance_previous_type",
       "column": "19",
       "file": "aws.tf",
       "issueClass": "ISSUE_CLASS_NEW",
       "level": "LEVEL_MEDIUM",
       "line": "2",
       "linter": "tflint",
-      "message": "\\"t1.2xlarge\\" is previous generation instance type.",
+      "message": ""t1.2xlarge" is previous generation instance type.",
       "targetType": "terraform",
     },
   ],
-  "lintActions": Array [
-    Object {
+  "lintActions": [
+    {
       "command": "lint",
       "fileGroupName": "terraform",
       "linter": "tflint",
-      "paths": Array [
+      "paths": [
         "aws.tf",
       ],
       "verb": "TRUNK_VERB_CHECK",
     },
   ],
-  "taskFailures": Array [],
-  "unformattedFiles": Array [],
+  "taskFailures": [],
+  "unformattedFiles": [],
 }
 `;