DirToGoPkg returns the Gopkg for the given directory if it exists under a GOPATH otherwise returns error.

GetDomainFromProject get domain information from the PROJECT file under the path.

IsGoSrcPath validate if given path is of path $GOPATH/src.

IsUnderGoSrcPath validate if given path is under path $GOPATH/src.

PathHasProjectFile validate if PROJECT file exists under the path.