Revert "Adding Filesystem check function to templater"

This reverts commit 154bcec95c

We don't use this function anywhere, moreover
fs related functions are way beyond the reasonable
functionality of templater. Especially taking
into account that we have only 1 function.

Change-Id: I919d8466ff1eab2d2687db7055bf974b7b608d8e

pkg/document/plugin/templater/extlib/fs.go

@@ -1,24 +0,0 @@
-/*
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
-     https://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
-*/
-
-package extlib
-
-import (
-	"opendev.org/airship/airshipctl/pkg/fs"
-)
-
-func fileExists(path string) bool {
-	docfs := fs.NewDocumentFs()
-	return docfs.Exists(path)
-}

pkg/document/plugin/templater/extlib/fs_test.go

@@ -1,26 +0,0 @@
-/*
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
-     https://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
-*/
-
-package extlib
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-)
-
-func TestFileExists(t *testing.T) {
-	assert.Equal(t, true, fileExists("fs_test.go"))
-	assert.Equal(t, false, fileExists("fs_test_nonexistent.go"))
-}

pkg/document/plugin/templater/extlib/funcmap.go

@@ -32,7 +32,6 @@ var genericMap = map[string]interface{}{
 	"genCAWithKeyEx":         generateCertificateAuthorityWithPEMKeyEx,
 	"genSignedCertEx":        generateSignedCertificateEx,
 	"genSignedCertWithKeyEx": generateSignedCertificateWithPEMKeyEx,
-	"fileExists":             fileExists,
 	"regexGen":               regexGen,
 	"toYaml":                 toYaml,
 	"toUint32":               toUint32,

pkg/document/plugin/templater/templater_test.go

@@ -186,20 +186,6 @@ template: |
 				"at <regexGen .regex (.limit | int)>: error calling " +
 				"regexGen: error parsing regexp: missing closing ]: `[a-z`",
 		},
-		{
-			cfg: `
-apiVersion: airshipit.org/v1alpha1
-kind: Templater
-metadata:
-  name: notImportantHere
-template: |
-  FileExists: {{ fileExists "./templater.go" }}
-  NoFileExists: {{ fileExists "./templater1.go" }}
-`,
-			expectedOut: `FileExists: true
-NoFileExists: false
-`,
-		},
 	}
 
 	for _, tc := range testCases {