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forgejo/services/repository/files/tree.go
Lunny Xiao 6905540088
Use the database object format name but not read from git repoisitory everytime and fix possible migration wrong objectformat when migrating a sha256 repository (#29294)
Now we can get object format name from git command line or from the
database repository table. Assume the column is right, we don't need to
read from git command line every time.

This also fixed a possible bug that the object format is wrong when
migrating a sha256 repository from external.

<img width="658" alt="image"
src="https://github.com/go-gitea/gitea/assets/81045/6e9a9dcf-13bf-4267-928b-6bf2c2560423">

(cherry picked from commit b79c30435f439af8243ee281310258cdf141e27b)

Conflicts:
	routers/web/repo/blame.go
	services/agit/agit.go
	context
2024-02-26 22:30:26 +01:00

102 lines
2.9 KiB
Go

// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package files
import (
"context"
"fmt"
"net/url"
"code.gitea.io/gitea/models"
repo_model "code.gitea.io/gitea/models/repo"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/setting"
api "code.gitea.io/gitea/modules/structs"
)
// GetTreeBySHA get the GitTreeResponse of a repository using a sha hash.
func GetTreeBySHA(ctx context.Context, repo *repo_model.Repository, gitRepo *git.Repository, sha string, page, perPage int, recursive bool) (*api.GitTreeResponse, error) {
gitTree, err := gitRepo.GetTree(sha)
if err != nil || gitTree == nil {
return nil, models.ErrSHANotFound{
SHA: sha,
}
}
tree := new(api.GitTreeResponse)
tree.SHA = gitTree.ResolvedID.String()
tree.URL = repo.APIURL() + "/git/trees/" + url.PathEscape(tree.SHA)
var entries git.Entries
if recursive {
entries, err = gitTree.ListEntriesRecursiveWithSize()
} else {
entries, err = gitTree.ListEntries()
}
if err != nil {
return nil, err
}
apiURL := repo.APIURL()
apiURLLen := len(apiURL)
objectFormat := git.ObjectFormatFromName(repo.ObjectFormatName)
hashLen := objectFormat.FullLength()
const gitBlobsPath = "/git/blobs/"
blobURL := make([]byte, apiURLLen+hashLen+len(gitBlobsPath))
copy(blobURL, apiURL)
copy(blobURL[apiURLLen:], []byte(gitBlobsPath))
const gitTreePath = "/git/trees/"
treeURL := make([]byte, apiURLLen+hashLen+len(gitTreePath))
copy(treeURL, apiURL)
copy(treeURL[apiURLLen:], []byte(gitTreePath))
// copyPos is at the start of the hash
copyPos := len(treeURL) - hashLen
if perPage <= 0 || perPage > setting.API.DefaultGitTreesPerPage {
perPage = setting.API.DefaultGitTreesPerPage
}
if page <= 0 {
page = 1
}
tree.Page = page
tree.TotalCount = len(entries)
rangeStart := perPage * (page - 1)
if rangeStart >= len(entries) {
return tree, nil
}
var rangeEnd int
if len(entries) > perPage {
tree.Truncated = true
}
if rangeStart+perPage < len(entries) {
rangeEnd = rangeStart + perPage
} else {
rangeEnd = len(entries)
}
tree.Entries = make([]api.GitEntry, rangeEnd-rangeStart)
for e := rangeStart; e < rangeEnd; e++ {
i := e - rangeStart
tree.Entries[i].Path = entries[e].Name()
tree.Entries[i].Mode = fmt.Sprintf("%06o", entries[e].Mode())
tree.Entries[i].Type = entries[e].Type()
tree.Entries[i].Size = entries[e].Size()
tree.Entries[i].SHA = entries[e].ID.String()
if entries[e].IsDir() {
copy(treeURL[copyPos:], entries[e].ID.String())
tree.Entries[i].URL = string(treeURL)
} else if entries[e].IsSubModule() {
// In Github Rest API Version=2022-11-28, if a tree entry is a submodule,
// its url will be returned as an empty string.
// So the URL will be set to "" here.
tree.Entries[i].URL = ""
} else {
copy(blobURL[copyPos:], entries[e].ID.String())
tree.Entries[i].URL = string(blobURL)
}
}
return tree, nil
}