Remove unused checkXExists methods in toml, terragrunt, terraform_ver…

…sion, as these are handled directly from the GetVersionFromX methods

Issue #420

lib/param_parsing/terraform_version.go

@@ -1,10 +1,11 @@
 package param_parsing
 
 import (
-	"github.com/warrensbox/terraform-switcher/lib"
 	"os"
 	"path/filepath"
 	"strings"
+
+	"github.com/warrensbox/terraform-switcher/lib"
 )
 
 const terraformVersionFileName = ".terraform-version"
@@ -22,8 +23,3 @@ func GetParamsFromTerraformVersion(params Params) (Params, error) {
 	}
 	return params, nil
 }
-
-func terraformVersionFileExists(params Params) bool {
-	filePath := filepath.Join(params.ChDirPath, terraformVersionFileName)
-	return lib.CheckFileExist(filePath)
-}

lib/param_parsing/terragrunt.go

@@ -2,10 +2,11 @@ package param_parsing
 
 import (
 	"fmt"
+	"path/filepath"
+
 	"github.com/hashicorp/hcl/v2/gohcl"
 	"github.com/hashicorp/hcl/v2/hclparse"
 	"github.com/warrensbox/terraform-switcher/lib"
-	"path/filepath"
 )
 
 const terraGruntFileName = "terragrunt.hcl"
@@ -37,8 +38,3 @@ func GetVersionFromTerragrunt(params Params) (Params, error) {
 	}
 	return params, nil
 }
-
-func terraGruntFileExists(params Params) bool {
-	filePath := filepath.Join(params.ChDirPath, terraGruntFileName)
-	return lib.CheckFileExist(filePath)
-}

lib/param_parsing/toml.go

@@ -1,17 +1,18 @@
 package param_parsing
 
 import (
+	"path/filepath"
+
 	"github.com/spf13/viper"
 	"github.com/warrensbox/terraform-switcher/lib"
-	"path/filepath"
 )
 
 const tfSwitchTOMLFileName = ".tfswitch.toml"
 
 // getParamsTOML parses everything in the toml file, return required version and bin path
 func getParamsTOML(params Params) (Params, error) {
 	tomlPath := filepath.Join(params.ChDirPath, tfSwitchTOMLFileName)
-	if tomlFileExists(params) {
+	if lib.CheckFileExist(tomlPath) {
 		logger.Infof("Reading configuration from %q", tomlPath)
 		configfileName := lib.GetFileName(tfSwitchTOMLFileName)
 		viperParser := viper.New()
@@ -37,8 +38,3 @@ func getParamsTOML(params Params) (Params, error) {
 	}
 	return params, nil
 }
-
-func tomlFileExists(params Params) bool {
-	tomlPath := filepath.Join(params.ChDirPath, tfSwitchTOMLFileName)
-	return lib.CheckFileExist(tomlPath)
-}