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Speed up `enry.IsVendor` (#15213) (#15245)

Backport #15213

`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>
mj-v1.14.3
zeripath 2 years ago
committed by GitHub
parent
commit
f75a9b27b0
No known key found for this signature in database GPG Key ID: 4AEE18F83AFDEB23
  1. 70
      modules/analyze/vendor.go
  2. 42
      modules/analyze/vendor_test.go
  3. 2
      modules/git/repo_language_stats_gogit.go
  4. 2
      modules/git/repo_language_stats_nogogit.go
  5. 2
      modules/indexer/code/bleve.go
  6. 2
      modules/indexer/code/elastic_search.go

70
modules/analyze/vendor.go

@ -0,0 +1,70 @@
// 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)
}

42
modules/analyze/vendor_test.go

@ -0,0 +1,42 @@
// 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 "testing"
func TestIsVendor(t *testing.T) {
tests := []struct {
path string
want bool
}{
{"cache/", true},
{"random/cache/", true},
{"cache", false},
{"dependencies/", true},
{"Dependencies/", true},
{"dependency/", false},
{"dist/", true},
{"dist", false},
{"random/dist/", true},
{"random/dist", false},
{"deps/", true},
{"configure", true},
{"a/configure", true},
{"config.guess", true},
{"config.guess/", false},
{".vscode/", true},
{"doc/_build/", true},
{"a/docs/_build/", true},
{"a/dasdocs/_build-vsdoc.js", true},
{"a/dasdocs/_build-vsdoc.j", false},
}
for _, tt := range tests {
t.Run(tt.path, func(t *testing.T) {
if got := IsVendor(tt.path); got != tt.want {
t.Errorf("IsVendor() = %v, want %v", got, tt.want)
}
})
}
}

2
modules/git/repo_language_stats_gogit.go

@ -43,7 +43,7 @@ func (repo *Repository) GetLanguageStats(commitID string) (map[string]int64, err
sizes := make(map[string]int64)
err = tree.Files().ForEach(func(f *object.File) error {
if f.Size == 0 || enry.IsVendor(f.Name) || enry.IsDotFile(f.Name) ||
if f.Size == 0 || analyze.IsVendor(f.Name) || enry.IsDotFile(f.Name) ||
enry.IsDocumentation(f.Name) || enry.IsConfiguration(f.Name) {
return nil
}

2
modules/git/repo_language_stats_nogogit.go

@ -67,7 +67,7 @@ func (repo *Repository) GetLanguageStats(commitID string) (map[string]int64, err
for _, f := range entries {
contentBuf.Reset()
content = contentBuf.Bytes()
if f.Size() == 0 || enry.IsVendor(f.Name()) || enry.IsDotFile(f.Name()) ||
if f.Size() == 0 || analyze.IsVendor(f.Name()) || enry.IsDotFile(f.Name()) ||
enry.IsDocumentation(f.Name()) || enry.IsConfiguration(f.Name()) {
continue
}

2
modules/indexer/code/bleve.go

@ -178,7 +178,7 @@ func NewBleveIndexer(indexDir string) (*BleveIndexer, bool, error) {
func (b *BleveIndexer) addUpdate(batchWriter *io.PipeWriter, batchReader *bufio.Reader, commitSha string, update fileUpdate, repo *models.Repository, batch rupture.FlushingBatch) error {
// Ignore vendored files in code search
if setting.Indexer.ExcludeVendored && enry.IsVendor(update.Filename) {
if setting.Indexer.ExcludeVendored && analyze.IsVendor(update.Filename) {
return nil
}

2
modules/indexer/code/elastic_search.go

@ -177,7 +177,7 @@ func (b *ElasticSearchIndexer) init() (bool, error) {
func (b *ElasticSearchIndexer) addUpdate(batchWriter *io.PipeWriter, batchReader *bufio.Reader, sha string, update fileUpdate, repo *models.Repository) ([]elastic.BulkableRequest, error) {
// Ignore vendored files in code search
if setting.Indexer.ExcludeVendored && enry.IsVendor(update.Filename) {
if setting.Indexer.ExcludeVendored && analyze.IsVendor(update.Filename) {
return nil, nil
}

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