Add sprig template funcions collection (#45) (#52)

CHANGELOG.md

@@ -20,6 +20,19 @@ All notable changes to this project will be documented in this file.
 
 ### Changed
 
+* Add support for [sprig template functions](https://github.com/Masterminds/sprig)
+  * __THIS IS A BREAKING CHANGE FOR THE `indent` FUNCTION__
+  * __indent__ no longer accepts `[]byte` input. Only `string` input is accepted.
+  * __indent__ no longer trimes input.
+  * __indent__ no longer inserts two spaces per indent but one space.
+  * Required migration steps
+    * you need to double the indent size
+      * `indent 4 "hallo world"` needs to be `indent 8 "hallo world"`
+    * if you read file content and use indent you need to use `readAsString`
+      * `{{read "input-file.txt" | indent 4 }}` needs to be `{{readAsString "input-file.txt" | indent 8 }}`
+    * if you need to remove surrounding whitespaces you need to do it explicit using `trim`
+      * `indent 4 "  hallo world  "` needs to be `trim "  hallo world  " | indent 8`
+
 * Updates github.com/rancher/norman and github.com/rancher/types to match with github.com/rancher/rancher v2.3.6
   * Model Changes to the descriptor files:
     * Workload dose no longer support

go.mod

@@ -28,6 +28,7 @@ replace (
 )
 
 require (
+    github.com/Masterminds/sprig/v3 v3.1.0
 	github.com/Masterminds/semver v1.4.2
 	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
 	github.com/mitchellh/go-homedir v1.1.0

go.sum

@@ -24,8 +24,14 @@ github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym
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@@ -238,6 +244,7 @@ github.com/google/pprof v0.0.0-20180605153948-8b03ce837f34/go.mod h1:zfwlbNMJ+OI
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@@ -293,8 +300,12 @@ github.com/heketi/rest v0.0.0-20180404230133-aa6a65207413/go.mod h1:BeS3M108VzVl
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@@ -369,6 +380,8 @@ github.com/minio/cli v1.20.0/go.mod h1:bYxnK0uS629N3Bq+AOZZ+6lwF77Sodk4+UL9vNuXh
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@@ -380,6 +393,7 @@ github.com/mitchellh/iochan v1.0.0/go.mod h1:JwYml1nuB7xOzsp52dPpHFffvOCDupsG0Qu
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@@ -502,8 +516,9 @@ github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasO
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@@ -523,6 +538,7 @@ github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoH
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@@ -561,6 +577,8 @@ golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8U
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