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gitea/modules/analyze/vendor.go

71 lines
1.7 KiB

// Copyright 2021 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package analyze
import (
"regexp"
"sort"
"strings"
"github.com/go-enry/go-enry/v2/data"
)
var isVendorRegExp *regexp.Regexp
func init() {
matchers := data.VendorMatchers
caretStrings := make([]string, 0, 10)
caretShareStrings := make([]string, 0, 10)
matcherStrings := make([]string, 0, len(matchers))
for _, matcher := range matchers {
str := matcher.String()
if str[0] == '^' {
caretStrings = append(caretStrings, str[1:])
} else if str[0:5] == "(^|/)" {
caretShareStrings = append(caretShareStrings, str[5:])
} else {
matcherStrings = append(matcherStrings, str)
}
}
sort.Strings(caretShareStrings)
sort.Strings(caretStrings)
sort.Strings(matcherStrings)
sb := &strings.Builder{}
sb.WriteString("(?:^(?:")
sb.WriteString(caretStrings[0])
for _, matcher := range caretStrings[1:] {
sb.WriteString(")|(?:")
sb.WriteString(matcher)
}
sb.WriteString("))")
sb.WriteString("|")
sb.WriteString("(?:(?:^|/)(?:")
sb.WriteString(caretShareStrings[0])
for _, matcher := range caretShareStrings[1:] {
sb.WriteString(")|(?:")
sb.WriteString(matcher)
}
sb.WriteString("))")
sb.WriteString("|")
sb.WriteString("(?:")
sb.WriteString(matcherStrings[0])
for _, matcher := range matcherStrings[1:] {
sb.WriteString(")|(?:")
sb.WriteString(matcher)
}
sb.WriteString(")")
combined := sb.String()
isVendorRegExp = regexp.MustCompile(combined)
}
// IsVendor returns whether or not path is a vendor path.
func IsVendor(path string) bool {
return isVendorRegExp.MatchString(path)
}