Files
gitea/services/repository/gitgraph/graph.go
wxiaoguang 9dc04289aa refactor: make git package handle all git operations (#38543)
before: gitrepo vs git packages
after: git package fully handle all git operations

by the way, use `WithRepo(repo)` instead of `WithDir(repo.Path)` to hide
path details.

benefits:

1. remove all unnecessary wrappers, developers no need to struggle with
"which package should be used"
2. simplify code, RepositoryFacade can (will) be used everywhere, all
"path" details are (will be) hidden
2026-07-20 16:07:38 +00:00

106 lines
2.6 KiB
Go

// Copyright 2016 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package gitgraph
import (
"bufio"
"bytes"
"context"
"gitea.dev/modules/git"
"gitea.dev/modules/git/gitcmd"
"gitea.dev/modules/setting"
)
// GetCommitGraph return a list of commit (GraphItems) from all branches
func GetCommitGraph(ctx context.Context, gitRepo *git.Repository, page, maxAllowedColors int, hidePRRefs bool, branches, files []string) (*Graph, error) {
format := "DATA:%D|%H|%ad|%h|%s"
if page == 0 {
page = 1
}
graphCmd := gitcmd.NewCommand("log", "--graph", "--date-order", "--decorate=full")
if hidePRRefs {
graphCmd.AddArguments("--exclude=" + git.PullPrefix + "*")
}
if len(branches) == 0 {
graphCmd.AddArguments("--tags", "--branches")
}
graphCmd.AddArguments("-C", "-M", "--date=iso-strict").
AddOptionFormat("-n %d", setting.UI.GraphMaxCommitNum*page).
AddOptionFormat("--pretty=format:%s", format)
if len(branches) > 0 {
graphCmd.AddDynamicArguments(branches...)
}
if len(files) > 0 {
graphCmd.AddDashesAndList(files...)
}
graph := NewGraph()
commitsToSkip := setting.UI.GraphMaxCommitNum * (page - 1)
stdoutReader, stdoutReaderClose := graphCmd.MakeStdoutPipe()
defer stdoutReaderClose()
if err := graphCmd.
WithRepo(gitRepo).
WithPipelineFunc(func(ctx gitcmd.Context) error {
scanner := bufio.NewScanner(stdoutReader)
parser := &Parser{}
parser.firstInUse = -1
parser.maxAllowedColors = maxAllowedColors
if maxAllowedColors > 0 {
parser.availableColors = make([]int, maxAllowedColors)
for i := range parser.availableColors {
parser.availableColors[i] = i + 1
}
} else {
parser.availableColors = []int{1, 2}
}
for commitsToSkip > 0 && scanner.Scan() {
line := scanner.Bytes()
dataIdx := bytes.Index(line, []byte("DATA:"))
if dataIdx < 0 {
dataIdx = len(line)
}
starIdx := bytes.IndexByte(line, '*')
if starIdx >= 0 && starIdx < dataIdx {
commitsToSkip--
}
parser.ParseGlyphs(line[:dataIdx])
}
row := 0
// Skip initial non-commit lines
for scanner.Scan() {
line := scanner.Bytes()
if bytes.IndexByte(line, '*') >= 0 {
if err := parser.AddLineToGraph(graph, row, line); err != nil {
return ctx.CancelPipeline(err)
}
break
}
parser.ParseGlyphs(line)
}
for scanner.Scan() {
row++
line := scanner.Bytes()
if err := parser.AddLineToGraph(graph, row, line); err != nil {
return ctx.CancelPipeline(err)
}
}
return scanner.Err()
}).
RunWithStderr(ctx); err != nil {
return graph, err
}
return graph, nil
}