Integrate sprig for more helpers

go.mod

@@ -1,8 +1,15 @@
 module github.com/drone/drone-template-lib
 
 require (
+	github.com/Masterminds/goutils v1.1.0 // indirect
+	github.com/Masterminds/semver v1.4.2 // indirect
+	github.com/Masterminds/sprig v2.18.0+incompatible
 	github.com/aymerick/raymond v2.0.2+incompatible
 	github.com/bouk/monkey v1.0.0
+	github.com/google/uuid v1.1.0 // indirect
+	github.com/huandu/xstrings v1.2.0 // indirect
+	github.com/imdario/mergo v0.3.7 // indirect
 	github.com/pkg/errors v0.8.0
 	github.com/tkuchiki/faketime v0.0.0-20170607100027-a4500a4f4643
+	golang.org/x/crypto v0.0.0-20190211182817-74369b46fc67 // indirect
 )

go.sum

@@ -1,6 +1,22 @@
+github.com/Masterminds/goutils v1.1.0 h1:zukEsf/1JZwCMgHiK3GZftabmxiCw4apj3a28RPBiVg=
+github.com/Masterminds/goutils v1.1.0/go.mod h1:8cTjp+g8YejhMuvIA5y2vz3BpJxksy863GQaJW2MFNU=
+github.com/Masterminds/semver v1.4.2 h1:WBLTQ37jOCzSLtXNdoo8bNM8876KhNqOKvrlGITgsTc=
+github.com/Masterminds/semver v1.4.2/go.mod h1:MB6lktGJrhw8PrUyiEoblNEGEQ+RzHPF078ddwwvV3Y=
+github.com/Masterminds/sprig v2.18.0+incompatible h1:QoGhlbC6pter1jxKnjMFxT8EqsLuDE6FEcNbWEpw+lI=
+github.com/Masterminds/sprig v2.18.0+incompatible/go.mod h1:y6hNFY5UBTIWBxnzTeuNhlNS5hqE0NB0E6fgfo2Br3o=
 github.com/aymerick/raymond v2.0.2+incompatible h1:VEp3GpgdAnv9B2GFyTvqgcKvY+mfKMjPOA3SbKLtnU0=
 github.com/aymerick/raymond v2.0.2+incompatible/go.mod h1:osfaiScAUVup+UC9Nfq76eWqDhXlp+4UYaA8uhTBO6g=
+github.com/bouk/monkey v1.0.0 h1:k6z8fLlPhETfn5l9rlWVE7Q6B23DoaqosTdArvNQRdc=
 github.com/bouk/monkey v1.0.0/go.mod h1:PG/63f4XEUlVyW1ttIeOJmJhhe1+t9EC/je3eTjvFhE=
+github.com/google/uuid v1.1.0 h1:Jf4mxPC/ziBnoPIdpQdPJ9OeiomAUHLvxmPRSPH9m4s=
+github.com/google/uuid v1.1.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/huandu/xstrings v1.2.0 h1:yPeWdRnmynF7p+lLYz0H2tthW9lqhMJrQV/U7yy4wX0=
+github.com/huandu/xstrings v1.2.0/go.mod h1:DvyZB1rfVYsBIigL8HwpZgxHwXozlTgGqn63UyNX5k4=
+github.com/imdario/mergo v0.3.7 h1:Y+UAYTZ7gDEuOfhxKWy+dvb5dRQ6rJjFSdX2HZY1/gI=
+github.com/imdario/mergo v0.3.7/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA=
 github.com/pkg/errors v0.8.0 h1:WdK/asTD0HN+q6hsWO3/vpuAkAr+tw6aNJNDFFf0+qw=
 github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/tkuchiki/faketime v0.0.0-20170607100027-a4500a4f4643 h1:ii/sHfgFMByozryLeiDmn1ClZ/Pena4NgpJ4P7UuX9o=
 github.com/tkuchiki/faketime v0.0.0-20170607100027-a4500a4f4643/go.mod h1:RXY/TXAwGGL36IKDjrHFMcjpUrEiyWSEtLhFPw3UWF0=
+golang.org/x/crypto v0.0.0-20190211182817-74369b46fc67 h1:ng3VDlRp5/DHpSWl02R4rM9I+8M2rhmsuLwAMmkLQWE=
+golang.org/x/crypto v0.0.0-20190211182817-74369b46fc67/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=

template/helpers.go

@@ -23,6 +23,7 @@ import (
 	"unicode"
 	"unicode/utf8"
 
+	"github.com/Masterminds/sprig"
 	"github.com/aymerick/raymond"
 )
 
@@ -38,13 +39,19 @@ var (
 		"uppercasefirst": uppercaseFirst,
 		"uppercase":      strings.ToUpper,
 		"lowercase":      strings.ToLower,
-		"trim":           strings.TrimSpace,
-		"title":          strings.Title,
 		"regexReplace":   regexReplace,
 	}
 )
 
 func init() {
+	for name, function := range sprig.GenericFuncMap() {
+		if invalidHelper(name) {
+			continue
+		}
+
+		funcs[name] = function
+	}
+
 	raymond.RegisterHelpers(funcs)
 }
 
@@ -124,3 +131,23 @@ func regexReplace(pattern string, input string, replacement string) string {
 	re := regexp.MustCompile(pattern)
 	return re.ReplaceAllString(input, replacement)
 }
+
+func invalidHelper(name string) bool {
+	invalids := []string{
+		"buildCustomCert",
+		"fail",
+		"genSelfSignedCert",
+		"genSignedCert",
+		"genCA",
+		"semver",
+		"semverCompare",
+	}
+
+	for _, invalid := range invalids {
+		if name == invalid {
+			return true
+		}
+	}
+
+	return false
+}