gitea/modules/indexer/code/search.go
silverwind eec1c71880
Show syntax lexer name in file view/blame (#21814)
Show which Chroma Lexer is used to highlight the file in the file
header. It's useful for development to see what was detected, and I
think it's not bad info to have for the user:

<img width="233" alt="Screenshot 2022-11-14 at 22 31 16"
src="https://user-images.githubusercontent.com/115237/201770854-44933dfc-70a4-487c-8457-1bb3cc43ea62.png">
<img width="226" alt="Screenshot 2022-11-14 at 22 36 06"
src="https://user-images.githubusercontent.com/115237/201770856-9260ce6f-6c0f-442c-92b5-201e5b113188.png">
<img width="194" alt="Screenshot 2022-11-14 at 22 36 26"
src="https://user-images.githubusercontent.com/115237/201770857-6f56591b-80ea-42cc-8ea5-21b9156c018b.png">

Also, I improved the way this header overflows on small screens:

<img width="354" alt="Screenshot 2022-11-14 at 22 44 36"
src="https://user-images.githubusercontent.com/115237/201774828-2ddbcde1-da15-403f-bf7a-6248449fa2c5.png">

Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: John Olheiser <john.olheiser@gmail.com>
2022-11-19 13:08:06 +02:00

134 lines
3.3 KiB
Go

// Copyright 2017 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 code
import (
"bytes"
"context"
"strings"
"code.gitea.io/gitea/modules/highlight"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/util"
)
// Result a search result to display
type Result struct {
RepoID int64
Filename string
CommitID string
UpdatedUnix timeutil.TimeStamp
Language string
Color string
LineNumbers []int
FormattedLines string
}
func indices(content string, selectionStartIndex, selectionEndIndex int) (int, int) {
startIndex := selectionStartIndex
numLinesBefore := 0
for ; startIndex > 0; startIndex-- {
if content[startIndex-1] == '\n' {
if numLinesBefore == 1 {
break
}
numLinesBefore++
}
}
endIndex := selectionEndIndex
numLinesAfter := 0
for ; endIndex < len(content); endIndex++ {
if content[endIndex] == '\n' {
if numLinesAfter == 1 {
break
}
numLinesAfter++
}
}
return startIndex, endIndex
}
func writeStrings(buf *bytes.Buffer, strs ...string) error {
for _, s := range strs {
_, err := buf.WriteString(s)
if err != nil {
return err
}
}
return nil
}
func searchResult(result *SearchResult, startIndex, endIndex int) (*Result, error) {
startLineNum := 1 + strings.Count(result.Content[:startIndex], "\n")
var formattedLinesBuffer bytes.Buffer
contentLines := strings.SplitAfter(result.Content[startIndex:endIndex], "\n")
lineNumbers := make([]int, len(contentLines))
index := startIndex
for i, line := range contentLines {
var err error
if index < result.EndIndex &&
result.StartIndex < index+len(line) &&
result.StartIndex < result.EndIndex {
openActiveIndex := util.Max(result.StartIndex-index, 0)
closeActiveIndex := util.Min(result.EndIndex-index, len(line))
err = writeStrings(&formattedLinesBuffer,
line[:openActiveIndex],
line[openActiveIndex:closeActiveIndex],
line[closeActiveIndex:],
)
} else {
err = writeStrings(&formattedLinesBuffer,
line,
)
}
if err != nil {
return nil, err
}
lineNumbers[i] = startLineNum + i
index += len(line)
}
highlighted, _ := highlight.Code(result.Filename, "", formattedLinesBuffer.String())
return &Result{
RepoID: result.RepoID,
Filename: result.Filename,
CommitID: result.CommitID,
UpdatedUnix: result.UpdatedUnix,
Language: result.Language,
Color: result.Color,
LineNumbers: lineNumbers,
FormattedLines: highlighted,
}, nil
}
// PerformSearch perform a search on a repository
func PerformSearch(ctx context.Context, repoIDs []int64, language, keyword string, page, pageSize int, isMatch bool) (int, []*Result, []*SearchResultLanguages, error) {
if len(keyword) == 0 {
return 0, nil, nil, nil
}
total, results, resultLanguages, err := indexer.Search(ctx, repoIDs, language, keyword, page, pageSize, isMatch)
if err != nil {
return 0, nil, nil, err
}
displayResults := make([]*Result, len(results))
for i, result := range results {
startIndex, endIndex := indices(result.Content, result.StartIndex, result.EndIndex)
displayResults[i], err = searchResult(result, startIndex, endIndex)
if err != nil {
return 0, nil, nil, err
}
}
return int(total), displayResults, resultLanguages, nil
}