mirror of
https://github.com/go-gitea/gitea
synced 2024-08-28 01:56:31 +02:00
The 4 functions are duplicated, especially as interface methods. I think we just need to keep `MustID` the only one and remove other 3. ``` MustID(b []byte) ObjectID MustIDFromString(s string) ObjectID NewID(b []byte) (ObjectID, error) NewIDFromString(s string) (ObjectID, error) ``` Introduced the new interfrace method `ComputeHash` which will replace the interface `HasherInterface`. Now we don't need to keep two interfaces. Reintroduced `git.NewIDFromString` and `git.MustIDFromString`. The new function will detect the hash length to decide which objectformat of it. If it's 40, then it's SHA1. If it's 64, then it's SHA256. This will be right if the commitID is a full one. So the parameter should be always a full commit id. @AdamMajer Please review.
168 lines
4.3 KiB
Go
168 lines
4.3 KiB
Go
// Copyright 2017 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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//go:build !gogit
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package git
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import (
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"context"
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"fmt"
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"io"
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"path"
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"sort"
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"code.gitea.io/gitea/modules/log"
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)
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// GetCommitsInfo gets information of all commits that are corresponding to these entries
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func (tes Entries) GetCommitsInfo(ctx context.Context, commit *Commit, treePath string) ([]CommitInfo, *Commit, error) {
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entryPaths := make([]string, len(tes)+1)
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// Get the commit for the treePath itself
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entryPaths[0] = ""
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for i, entry := range tes {
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entryPaths[i+1] = entry.Name()
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}
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var err error
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var revs map[string]*Commit
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if commit.repo.LastCommitCache != nil {
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var unHitPaths []string
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revs, unHitPaths, err = getLastCommitForPathsByCache(ctx, commit.ID.String(), treePath, entryPaths, commit.repo.LastCommitCache)
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if err != nil {
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return nil, nil, err
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}
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if len(unHitPaths) > 0 {
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sort.Strings(unHitPaths)
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commits, err := GetLastCommitForPaths(ctx, commit, treePath, unHitPaths)
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if err != nil {
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return nil, nil, err
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}
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for pth, found := range commits {
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revs[pth] = found
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}
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}
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} else {
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sort.Strings(entryPaths)
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revs, err = GetLastCommitForPaths(ctx, commit, treePath, entryPaths)
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}
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if err != nil {
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return nil, nil, err
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}
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commitsInfo := make([]CommitInfo, len(tes))
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for i, entry := range tes {
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commitsInfo[i] = CommitInfo{
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Entry: entry,
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}
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// Check if we have found a commit for this entry in time
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if entryCommit, ok := revs[entry.Name()]; ok {
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commitsInfo[i].Commit = entryCommit
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} else {
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log.Debug("missing commit for %s", entry.Name())
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}
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// If the entry if a submodule add a submodule file for this
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if entry.IsSubModule() {
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subModuleURL := ""
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var fullPath string
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if len(treePath) > 0 {
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fullPath = treePath + "/" + entry.Name()
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} else {
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fullPath = entry.Name()
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}
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if subModule, err := commit.GetSubModule(fullPath); err != nil {
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return nil, nil, err
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} else if subModule != nil {
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subModuleURL = subModule.URL
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}
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subModuleFile := NewSubModuleFile(commitsInfo[i].Commit, subModuleURL, entry.ID.String())
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commitsInfo[i].SubModuleFile = subModuleFile
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}
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}
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// Retrieve the commit for the treePath itself (see above). We basically
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// get it for free during the tree traversal and it's used for listing
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// pages to display information about newest commit for a given path.
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var treeCommit *Commit
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var ok bool
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if treePath == "" {
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treeCommit = commit
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} else if treeCommit, ok = revs[""]; ok {
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treeCommit.repo = commit.repo
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}
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return commitsInfo, treeCommit, nil
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}
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func getLastCommitForPathsByCache(ctx context.Context, commitID, treePath string, paths []string, cache *LastCommitCache) (map[string]*Commit, []string, error) {
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var unHitEntryPaths []string
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results := make(map[string]*Commit)
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for _, p := range paths {
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lastCommit, err := cache.Get(commitID, path.Join(treePath, p))
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if err != nil {
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return nil, nil, err
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}
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if lastCommit != nil {
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results[p] = lastCommit
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continue
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}
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unHitEntryPaths = append(unHitEntryPaths, p)
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}
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return results, unHitEntryPaths, nil
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}
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// GetLastCommitForPaths returns last commit information
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func GetLastCommitForPaths(ctx context.Context, commit *Commit, treePath string, paths []string) (map[string]*Commit, error) {
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// We read backwards from the commit to obtain all of the commits
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revs, err := WalkGitLog(ctx, commit.repo, commit, treePath, paths...)
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if err != nil {
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return nil, err
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}
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batchStdinWriter, batchReader, cancel := commit.repo.CatFileBatch(ctx)
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defer cancel()
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commitsMap := map[string]*Commit{}
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commitsMap[commit.ID.String()] = commit
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commitCommits := map[string]*Commit{}
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for path, commitID := range revs {
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c, ok := commitsMap[commitID]
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if ok {
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commitCommits[path] = c
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continue
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}
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if len(commitID) == 0 {
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continue
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}
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_, err := batchStdinWriter.Write([]byte(commitID + "\n"))
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if err != nil {
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return nil, err
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}
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_, typ, size, err := ReadBatchLine(batchReader)
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if err != nil {
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return nil, err
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}
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if typ != "commit" {
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return nil, fmt.Errorf("unexpected type: %s for commit id: %s", typ, commitID)
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}
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c, err = CommitFromReader(commit.repo, MustIDFromString(commitID), io.LimitReader(batchReader, size))
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if err != nil {
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return nil, err
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}
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if _, err := batchReader.Discard(1); err != nil {
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return nil, err
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}
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commitCommits[path] = c
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}
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return commitCommits, nil
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}
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