bench-forgejo/modules/git/commit_info_nogogit.go
zeripath 01087e9eef
Make Requests Processes and create process hierarchy. Associate OpenRepository with context. ()
This PR registers requests with the process manager and manages hierarchy within the processes.

Git repos are then associated with a context, (usually the request's context) - with sub commands using this context as their base context.

Signed-off-by: Andrew Thornton <art27@cantab.net>
2021-11-30 20:06:32 +00:00

172 lines
4.6 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.
//go:build !gogit
// +build !gogit
package git
import (
"context"
"fmt"
"io"
"path"
"sort"
"code.gitea.io/gitea/modules/log"
)
// GetCommitsInfo gets information of all commits that are corresponding to these entries
func (tes Entries) GetCommitsInfo(ctx context.Context, commit *Commit, treePath string, cache *LastCommitCache) ([]CommitInfo, *Commit, error) {
entryPaths := make([]string, len(tes)+1)
// Get the commit for the treePath itself
entryPaths[0] = ""
for i, entry := range tes {
entryPaths[i+1] = entry.Name()
}
var err error
var revs map[string]*Commit
if cache != nil {
var unHitPaths []string
revs, unHitPaths, err = getLastCommitForPathsByCache(ctx, commit.ID.String(), treePath, entryPaths, cache)
if err != nil {
return nil, nil, err
}
if len(unHitPaths) > 0 {
sort.Strings(unHitPaths)
commits, err := GetLastCommitForPaths(ctx, cache, commit, treePath, unHitPaths)
if err != nil {
return nil, nil, err
}
for pth, found := range commits {
revs[pth] = found
}
}
} else {
sort.Strings(entryPaths)
revs, err = GetLastCommitForPaths(ctx, nil, commit, treePath, entryPaths)
}
if err != nil {
return nil, nil, err
}
commitsInfo := make([]CommitInfo, len(tes))
for i, entry := range tes {
commitsInfo[i] = CommitInfo{
Entry: entry,
}
// Check if we have found a commit for this entry in time
if entryCommit, ok := revs[entry.Name()]; ok {
commitsInfo[i].Commit = entryCommit
} else {
log.Debug("missing commit for %s", entry.Name())
}
// If the entry if a submodule add a submodule file for this
if entry.IsSubModule() {
subModuleURL := ""
var fullPath string
if len(treePath) > 0 {
fullPath = treePath + "/" + entry.Name()
} else {
fullPath = entry.Name()
}
if subModule, err := commit.GetSubModule(fullPath); err != nil {
return nil, nil, err
} else if subModule != nil {
subModuleURL = subModule.URL
}
subModuleFile := NewSubModuleFile(commitsInfo[i].Commit, subModuleURL, entry.ID.String())
commitsInfo[i].SubModuleFile = subModuleFile
}
}
// Retrieve the commit for the treePath itself (see above). We basically
// get it for free during the tree traversal and it's used for listing
// pages to display information about newest commit for a given path.
var treeCommit *Commit
var ok bool
if treePath == "" {
treeCommit = commit
} else if treeCommit, ok = revs[""]; ok {
treeCommit.repo = commit.repo
}
return commitsInfo, treeCommit, nil
}
func getLastCommitForPathsByCache(ctx context.Context, commitID, treePath string, paths []string, cache *LastCommitCache) (map[string]*Commit, []string, error) {
wr, rd, cancel := cache.repo.CatFileBatch(ctx)
defer cancel()
var unHitEntryPaths []string
var results = make(map[string]*Commit)
for _, p := range paths {
lastCommit, err := cache.Get(commitID, path.Join(treePath, p), wr, rd)
if err != nil {
return nil, nil, err
}
if lastCommit != nil {
results[p] = lastCommit.(*Commit)
continue
}
unHitEntryPaths = append(unHitEntryPaths, p)
}
return results, unHitEntryPaths, nil
}
// GetLastCommitForPaths returns last commit information
func GetLastCommitForPaths(ctx context.Context, cache *LastCommitCache, commit *Commit, treePath string, paths []string) (map[string]*Commit, error) {
// We read backwards from the commit to obtain all of the commits
revs, err := WalkGitLog(ctx, cache, commit.repo, commit, treePath, paths...)
if err != nil {
return nil, err
}
batchStdinWriter, batchReader, cancel := commit.repo.CatFileBatch(ctx)
defer cancel()
commitsMap := map[string]*Commit{}
commitsMap[commit.ID.String()] = commit
commitCommits := map[string]*Commit{}
for path, commitID := range revs {
c, ok := commitsMap[commitID]
if ok {
commitCommits[path] = c
continue
}
if len(commitID) == 0 {
continue
}
_, err := batchStdinWriter.Write([]byte(commitID + "\n"))
if err != nil {
return nil, err
}
_, typ, size, err := ReadBatchLine(batchReader)
if err != nil {
return nil, err
}
if typ != "commit" {
return nil, fmt.Errorf("unexpected type: %s for commit id: %s", typ, commitID)
}
c, err = CommitFromReader(commit.repo, MustIDFromString(string(commitID)), io.LimitReader(batchReader, int64(size)))
if err != nil {
return nil, err
}
if _, err := batchReader.Discard(1); err != nil {
return nil, err
}
commitCommits[path] = c
}
return commitCommits, nil
}