/
name.go
55 lines (42 loc) · 1.14 KB
/
name.go
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package tiltextension
// Most of the code in this file is adopted from NPM's module name rules
// https://github.com/npm/validate-npm-package-name/blob/master/index.js
import (
"fmt"
"net/url"
"strings"
)
const maxModuleNameLength = 214
var banList = []string{
"tilt_modules",
"Tiltfile",
}
func ValidateName(name string) error {
if len(name) == 0 {
return fmt.Errorf("name length must be greater than zero")
}
if strings.HasPrefix(name, ".") {
return fmt.Errorf("name cannot start with a period")
}
if strings.HasPrefix(name, "_") {
return fmt.Errorf("name cannot start with an underscore")
}
if strings.TrimSpace(name) != name {
return fmt.Errorf("name cannot contain leading or trailing spaces")
}
for _, b := range banList {
if strings.EqualFold(name, b) {
return fmt.Errorf("%s is a banned name", b)
}
}
if len(name) > maxModuleNameLength {
return fmt.Errorf("name cannot contain more than 214 characters")
}
if url.PathEscape(name) != name {
return fmt.Errorf("name can only contain URL-friendly characters")
}
if strings.Contains(name, ":") {
return fmt.Errorf("name cannot contain `:`")
}
return nil
}