update go-gitignore's usage to remove impossible error

See #650 for history.

Signed-off-by: Shaba Abhiram <[email protected]>

go.mod

@@ -29,7 +29,7 @@ require (
 	github.com/opencontainers/selinux v1.6.0 // indirect
 	github.com/pelletier/go-toml v1.8.1
 	github.com/pkg/errors v0.9.1
-	github.com/sabhiram/go-gitignore v0.0.0-20180611051255-d3107576ba94
+	github.com/sabhiram/go-gitignore v0.0.0-20201211074657-223ce5d391b0
 	github.com/sclevine/spec v1.4.0
 	github.com/sergi/go-diff v1.1.0 // indirect
 	github.com/sirupsen/logrus v1.7.0 // indirect

go.sum

@@ -490,8 +490,8 @@ github.com/rubiojr/go-vhd v0.0.0-20160810183302-0bfd3b39853c/go.mod h1:DM5xW0nvf
 github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
 github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/ryanuber/columnize v0.0.0-20160712163229-9b3edd62028f/go.mod h1:sm1tb6uqfes/u+d4ooFouqFdy9/2g9QGwK3SQygK0Ts=
-github.com/sabhiram/go-gitignore v0.0.0-20180611051255-d3107576ba94 h1:G04eS0JkAIVZfaJLjla9dNxkJCPiKIGZlw9AfOhzOD0=
-github.com/sabhiram/go-gitignore v0.0.0-20180611051255-d3107576ba94/go.mod h1:b18R55ulyQ/h3RaWyloPyER7fWQVZvimKKhnI5OfrJQ=
+github.com/sabhiram/go-gitignore v0.0.0-20201211074657-223ce5d391b0 h1:4Q/TASkyjpqyR5DL5+6c2FGSDpHM5bTMSspcXr7J6R8=
+github.com/sabhiram/go-gitignore v0.0.0-20201211074657-223ce5d391b0/go.mod h1:b18R55ulyQ/h3RaWyloPyER7fWQVZvimKKhnI5OfrJQ=
 github.com/satori/go.uuid v1.2.0/go.mod h1:dA0hQrYB0VpLJoorglMZABFdXlWrHn1NEOzdhQKdks0=
 github.com/sclevine/spec v1.2.0/go.mod h1:W4J29eT/Kzv7/b9IWLB055Z+qvVC9vt0Arko24q7p+U=
 github.com/sclevine/spec v1.4.0 h1:z/Q9idDcay5m5irkZ28M7PtQM4aOISzOpj4bUPkDee8=

internal/commands/build.go

@@ -252,19 +252,13 @@ func parseProjectToml(appPath, descriptorPath string) (project.Descriptor, strin
 
 func getFileFilter(descriptor project.Descriptor) (func(string) bool, error) {
 	if len(descriptor.Build.Exclude) > 0 {
-		excludes, err := ignore.CompileIgnoreLines(descriptor.Build.Exclude...)
-		if err != nil {
-			return nil, err
-		}
+		excludes := ignore.CompileIgnoreLines(descriptor.Build.Exclude...)
 		return func(fileName string) bool {
 			return !excludes.MatchesPath(fileName)
 		}, nil
 	}
 	if len(descriptor.Build.Include) > 0 {
-		includes, err := ignore.CompileIgnoreLines(descriptor.Build.Include...)
-		if err != nil {
-			return nil, err
-		}
+		includes := ignore.CompileIgnoreLines(descriptor.Build.Include...)
 		return includes.MatchesPath, nil
 	}