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ff460ca74d
`enry.IsVendor` is kinda slow as it simply iterates across all regexps. This PR ajdusts the regexps to combine them to make this process a little quicker. Related #15143 Signed-off-by: Andrew Thornton <art27@cantab.net>
70 lines
1.7 KiB
Go
70 lines
1.7 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package analyze
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import (
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"regexp"
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"sort"
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"strings"
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"github.com/go-enry/go-enry/v2/data"
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)
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var isVendorRegExp *regexp.Regexp
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func init() {
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matchers := data.VendorMatchers
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caretStrings := make([]string, 0, 10)
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caretShareStrings := make([]string, 0, 10)
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matcherStrings := make([]string, 0, len(matchers))
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for _, matcher := range matchers {
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str := matcher.String()
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if str[0] == '^' {
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caretStrings = append(caretStrings, str[1:])
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} else if str[0:5] == "(^|/)" {
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caretShareStrings = append(caretShareStrings, str[5:])
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} else {
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matcherStrings = append(matcherStrings, str)
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}
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}
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sort.Strings(caretShareStrings)
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sort.Strings(caretStrings)
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sort.Strings(matcherStrings)
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sb := &strings.Builder{}
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sb.WriteString("(?:^(?:")
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sb.WriteString(caretStrings[0])
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for _, matcher := range caretStrings[1:] {
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sb.WriteString(")|(?:")
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sb.WriteString(matcher)
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}
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sb.WriteString("))")
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sb.WriteString("|")
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sb.WriteString("(?:(?:^|/)(?:")
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sb.WriteString(caretShareStrings[0])
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for _, matcher := range caretShareStrings[1:] {
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sb.WriteString(")|(?:")
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sb.WriteString(matcher)
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}
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sb.WriteString("))")
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sb.WriteString("|")
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sb.WriteString("(?:")
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sb.WriteString(matcherStrings[0])
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for _, matcher := range matcherStrings[1:] {
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sb.WriteString(")|(?:")
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sb.WriteString(matcher)
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}
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sb.WriteString(")")
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combined := sb.String()
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isVendorRegExp = regexp.MustCompile(combined)
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}
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// IsVendor returns whether or not path is a vendor path.
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func IsVendor(path string) bool {
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return isVendorRegExp.MatchString(path)
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}
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