mirror of
https://github.com/go-gitea/gitea
synced 2024-12-29 15:24:43 +01:00
3c45cf8494
Move langauge detection to separate module to be more reusable Add option to disable vendored file exclusion from file search Allways show all language stats for search
107 lines
2.3 KiB
Go
107 lines
2.3 KiB
Go
// Copyright 2020 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 git
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import (
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"bytes"
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"io"
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"io/ioutil"
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"math"
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"code.gitea.io/gitea/modules/analyze"
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"github.com/src-d/enry/v2"
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"gopkg.in/src-d/go-git.v4"
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"gopkg.in/src-d/go-git.v4/plumbing"
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"gopkg.in/src-d/go-git.v4/plumbing/object"
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)
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const fileSizeLimit int64 = 16 * 1024 * 1024
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// GetLanguageStats calculates language stats for git repository at specified commit
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func (repo *Repository) GetLanguageStats(commitID string) (map[string]float32, error) {
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r, err := git.PlainOpen(repo.Path)
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if err != nil {
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return nil, err
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}
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rev, err := r.ResolveRevision(plumbing.Revision(commitID))
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if err != nil {
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return nil, err
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}
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commit, err := r.CommitObject(*rev)
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if err != nil {
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return nil, err
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}
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tree, err := commit.Tree()
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if err != nil {
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return nil, err
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}
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sizes := make(map[string]int64)
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var total int64
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err = tree.Files().ForEach(func(f *object.File) error {
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if enry.IsVendor(f.Name) || enry.IsDotFile(f.Name) ||
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enry.IsDocumentation(f.Name) || enry.IsConfiguration(f.Name) {
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return nil
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}
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// TODO: Use .gitattributes file for linguist overrides
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language := analyze.GetCodeLanguageWithCallback(f.Name, func() ([]byte, error) {
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return readFile(f, fileSizeLimit)
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})
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if language == enry.OtherLanguage || language == "" {
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return nil
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}
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sizes[language] += f.Size
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total += f.Size
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return nil
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})
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if err != nil {
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return nil, err
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}
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stats := make(map[string]float32)
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var otherPerc float32 = 100
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for language, size := range sizes {
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perc := float32(math.Round(float64(size)/float64(total)*1000) / 10)
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if perc <= 0.1 {
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continue
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}
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otherPerc -= perc
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stats[language] = perc
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}
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otherPerc = float32(math.Round(float64(otherPerc)*10) / 10)
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if otherPerc > 0 {
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stats["other"] = otherPerc
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}
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return stats, nil
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}
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func readFile(f *object.File, limit int64) ([]byte, error) {
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r, err := f.Reader()
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if err != nil {
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return nil, err
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}
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defer r.Close()
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if limit <= 0 {
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return ioutil.ReadAll(r)
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}
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size := f.Size
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if limit > 0 && size > limit {
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size = limit
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}
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buf := bytes.NewBuffer(nil)
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buf.Grow(int(size))
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_, err = io.Copy(buf, io.LimitReader(r, limit))
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return buf.Bytes(), err
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}
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