feat(tflint_bp_plugin): add min & max paramters

tflint-ruleset-blueprint/rules/terraform_required_version.go

@@ -16,6 +16,12 @@ type TerraformRequiredVersion struct {
 	tflint.DefaultRule
 }
 
+// TerraformRequiredVersionConfig is a config of TerraformRequiredVersion
+type TerraformRequiredVersionConfig struct {
+	MinVersion string `hclext:"min_version,optional"`
+	MaxVersion string `hclext:"max_version,optional"`
+}
+
 // NewTerraformRequiredVersion returns a new rule.
 func NewTerraformRequiredVersion() *TerraformRequiredVersion {
 	return &TerraformRequiredVersion{}
@@ -48,7 +54,30 @@ const (
 
 // Checks if a module has a terraform required_version within valid range.
 func (r *TerraformRequiredVersion) Check(runner tflint.Runner) error {
-	splitVersion := strings.Split(minimumTerraformRequiredVersion, ".")
+	config := &TerraformRequiredVersionConfig{}
+	if err := runner.DecodeRuleConfig(r.Name(), config); err != nil {
+		return err
+	}
+
+	minVersion := minimumTerraformRequiredVersion
+	if config.MinVersion != "" {
+		if _, err := version.NewSemver(config.MinVersion); err != nil {
+			return err
+		} else {
+			minVersion = config.MinVersion
+		}
+	}
+
+	maxVersion := maximumTerraformRequiredVersion
+	if config.MaxVersion != "" {
+		if _, err := version.NewSemver(config.MaxVersion); err != nil {
+			return err
+		} else {
+			maxVersion = config.MaxVersion
+		}
+	}
+
+	splitVersion := strings.Split(minVersion, ".")
 	majorVersion, err := strconv.Atoi(splitVersion[0])
 	if err != nil {
 		return err
@@ -66,6 +95,9 @@ func (r *TerraformRequiredVersion) Check(runner tflint.Runner) error {
 			minorVersion - 1,
 		 )
 	} else {
+		if majorVersion == 0 {
+			return fmt.Errorf("Error: minimum version test constraint would be below zero: v%d.%d.999", majorVersion - 1, 999)
+		}
 		terraform_below_minimum_required_version = fmt.Sprintf(
 			"v%d.%d.999",
 			majorVersion - 1,
@@ -78,12 +110,12 @@ func (r *TerraformRequiredVersion) Check(runner tflint.Runner) error {
 		return err
 	}
 
-	minimum_required_version, err := version.NewVersion(minimumTerraformRequiredVersion)
+	minimum_required_version, err := version.NewVersion(minVersion)
 	if err != nil {
 		return err
 	}
 
-	maximum_required_version, err := version.NewVersion(maximumTerraformRequiredVersion)
+	maximum_required_version, err := version.NewVersion(maxVersion)
 	if err != nil {
 		return err
 	}
@@ -126,7 +158,7 @@ func (r *TerraformRequiredVersion) Check(runner tflint.Runner) error {
 		//TODO: add option for repository exemptions
 		if !((constraints.Check(minimum_required_version) || constraints.Check(maximum_required_version)) && !constraints.Check(below_required_version)) {
 			//TODO: use EmitIssueWithFix()
-			err := runner.EmitIssue(r, fmt.Sprintf("required_version is not inclusive of the the minimum %q and maximum %q terraform required_version: %q", minimumTerraformRequiredVersion, maximumTerraformRequiredVersion, constraints.String()), block.DefRange)
+			err := runner.EmitIssue(r, fmt.Sprintf("required_version is not inclusive of the the minimum %q and maximum %q terraform required_version: %q", minVersion, maxVersion, constraints.String()), block.DefRange)
 			if err != nil {
 				return err
 			}

tflint-ruleset-blueprint/rules/terraform_required_version_test.go

@@ -17,6 +17,15 @@ func TestTerraformMinimumRequiredVersion(t *testing.T) {
 		{
 			dir: path.Join(terraformRequiredVersionTestDir, "multiple-invalid"),
 		},
+		{
+			dir: path.Join(terraformRequiredVersionTestDir, "multiple-valid-config"),
+		},
+		{
+			dir: path.Join(terraformRequiredVersionTestDir, "multiple-invalid-config"),
+		},
+		{
+			dir: path.Join(terraformRequiredVersionTestDir, "multiple-valid-config-single"),
+		},
 	}
 
 	rule := NewTerraformRequiredVersion()

tflint-ruleset-blueprint/rules/testdata/terraform_required_version/multiple-invalid-config/.expected/issues.json

@@ -0,0 +1,128 @@
+[
+  {
+    "Message": "required_version is not inclusive of the the minimum \"1.6\" and maximum \"1.9\" terraform required_version: \">= 1\"",
+    "Range": {
+      "Filename": "main.tf",
+      "Start": {
+        "Line": 1,
+        "Column": 1
+      },
+      "End": {
+        "Line": 1,
+        "Column": 10
+      }
+    }
+  },
+  {
+    "Message": "required_version is not inclusive of the the minimum \"1.6\" and maximum \"1.9\" terraform required_version: \">= 1.1\"",
+    "Range": {
+      "Filename": "main.tf",
+      "Start": {
+        "Line": 5,
+        "Column": 1
+      },
+      "End": {
+        "Line": 5,
+        "Column": 10
+      }
+    }
+  },
+  {
+    "Message": "required_version is not inclusive of the the minimum \"1.6\" and maximum \"1.9\" terraform required_version: \">= 1.1.0\"",
+    "Range": {
+      "Filename": "main.tf",
+      "Start": {
+        "Line": 9,
+        "Column": 1
+      },
+      "End": {
+        "Line": 9,
+        "Column": 10
+      }
+    }
+  },
+  {
+    "Message": "required_version is not inclusive of the the minimum \"1.6\" and maximum \"1.9\" terraform required_version: \">=1.1.0\"",
+    "Range": {
+      "Filename": "main.tf",
+      "Start": {
+        "Line": 13,
+        "Column": 1
+      },
+      "End": {
+        "Line": 13,
+        "Column": 10
+      }
+    }
+  },
+  {
+    "Message": "required_version is not inclusive of the the minimum \"1.6\" and maximum \"1.9\" terraform required_version: \">= 1.1.0, < 2.0\"",
+    "Range": {
+      "Filename": "main.tf",
+      "Start": {
+        "Line": 17,
+        "Column": 1
+      },
+      "End": {
+        "Line": 17,
+        "Column": 10
+      }
+    }
+  },
+  {
+    "Message": "required_version is not inclusive of the the minimum \"1.6\" and maximum \"1.9\" terraform required_version: \">=0.13.0\"",
+    "Range": {
+      "Filename": "main.tf",
+      "Start": {
+        "Line": 21,
+        "Column": 1
+      },
+      "End": {
+        "Line": 21,
+        "Column": 10
+      }
+    }
+  },
+  {
+    "Message": "required_version is not inclusive of the the minimum \"1.6\" and maximum \"1.9\" terraform required_version: \"=0.13.0\"",
+    "Range": {
+      "Filename": "main.tf",
+      "Start": {
+        "Line": 25,
+        "Column": 1
+      },
+      "End": {
+        "Line": 25,
+        "Column": 10
+      }
+    }
+  },
+  {
+    "Message": "required_version is not inclusive of the the minimum \"1.6\" and maximum \"1.9\" terraform required_version: \"0.13.0\"",
+    "Range": {
+      "Filename": "main.tf",
+      "Start": {
+        "Line": 29,
+        "Column": 1
+      },
+      "End": {
+        "Line": 29,
+        "Column": 10
+      }
+    }
+  },
+  {
+    "Message": "required_version is not inclusive of the the minimum \"1.6\" and maximum \"1.9\" terraform required_version: \"~>0.13.0\"",
+    "Range": {
+      "Filename": "main.tf",
+      "Start": {
+        "Line": 33,
+        "Column": 1
+      },
+      "End": {
+        "Line": 33,
+        "Column": 10
+      }
+    }
+  }
+]

tflint-ruleset-blueprint/rules/testdata/terraform_required_version/multiple-invalid-config/.tflint.hcl

@@ -0,0 +1,5 @@
+rule "terraform_required_version" {
+  enabled     = true
+  min_version = "1.6"
+  max_version = "1.9"
+}

tflint-ruleset-blueprint/rules/testdata/terraform_required_version/multiple-invalid-config/main.tf

@@ -0,0 +1,35 @@
+terraform {
+  required_version = ">= 1"
+}
+
+terraform {
+  required_version = ">= 1.1"
+}
+
+terraform {
+  required_version = ">= 1.1.0"
+}
+
+terraform {
+  required_version = ">=1.1.0"
+}
+
+terraform {
+  required_version = ">= 1.1.0, < 2.0"
+}
+
+terraform {
+  required_version = ">=0.13.0"
+}
+
+terraform {
+  required_version = "=0.13.0"
+}
+
+terraform {
+  required_version = "0.13.0"
+}
+
+terraform {
+  required_version = "~>0.13.0"
+}

tflint-ruleset-blueprint/rules/testdata/terraform_required_version/multiple-valid-config-single/.expected/issues.json

@@ -0,0 +1 @@
+[]

tflint-ruleset-blueprint/rules/testdata/terraform_required_version/multiple-valid-config-single/.tflint.hcl

@@ -0,0 +1,4 @@
+rule "terraform_required_version" {
+  enabled     = true
+  max_version = "1.6"
+}

tflint-ruleset-blueprint/rules/testdata/terraform_required_version/multiple-valid-config-single/main.tf

@@ -0,0 +1,11 @@
+terraform {
+  required_version = ">=1.3"
+}
+
+terraform {
+  required_version = ">= 1.3, < 2.0"
+}
+
+terraform {
+  required_version = "~>1.6"
+}

tflint-ruleset-blueprint/rules/testdata/terraform_required_version/multiple-valid-config/.expected/issues.json

@@ -0,0 +1 @@
+[]

tflint-ruleset-blueprint/rules/testdata/terraform_required_version/multiple-valid-config/.tflint.hcl

@@ -0,0 +1,5 @@
+rule "terraform_required_version" {
+  enabled     = true
+  min_version = "1.6"
+  max_version = "1.9"
+}

tflint-ruleset-blueprint/rules/testdata/terraform_required_version/multiple-valid-config/main.tf

@@ -0,0 +1,15 @@
+terraform {
+  required_version = ">=1.6"
+}
+
+terraform {
+  required_version = ">= 1.6, < 2.0"
+}
+
+terraform {
+  required_version = "~>1.6"
+}
+
+terraform {
+  required_version = "~>1.9"
+}

tflint-ruleset-blueprint/rules/utils_test.go

@@ -6,6 +6,7 @@ import (
 	"os"
 	"path"
 	"path/filepath"
+	"slices"
 	"strings"
 	"testing"
 
@@ -16,11 +17,12 @@ import (
 const (
 	testdataDir    = "testdata"
 	expectedSuffix = ".expected"
-	tfExt          = ".tf"
 	updateEnvVar   = "UPDATE_EXPECTED"
 	issueFile      = "issues.json"
 )
 
+var validExtensions = []string{".tf", ".hcl"}
+
 // ruleTC is a single rule test case.
 type ruleTC struct {
 	// Dir with root module to be tested.
@@ -59,7 +61,7 @@ func configForTest(t *testing.T, subdir string) map[string]string {
 		if d.IsDir() && strings.HasPrefix(d.Name(), ".") {
 			return filepath.SkipDir
 		}
-		if !d.IsDir() && path.Ext(fp) == tfExt {
+		if !d.IsDir() && slices.Contains(validExtensions, path.Ext(fp)) {
 			relPath, err := filepath.Rel(modDir, fp)
 			if err != nil {
 				return err