2020-01-12 07:11:17 -05:00
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// Copyright 2019 The Gitea Authors. All rights reserved.
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2022-11-27 13:20:29 -05:00
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// SPDX-License-Identifier: MIT
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2020-01-12 07:11:17 -05:00
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package repository
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import (
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2022-06-06 03:01:49 -05:00
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"bufio"
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"bytes"
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2021-09-23 10:45:36 -05:00
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"context"
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2020-01-12 07:11:17 -05:00
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"fmt"
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"os"
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"path"
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"path/filepath"
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"regexp"
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2020-01-12 07:11:17 -05:00
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"strings"
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"time"
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2022-06-12 10:51:54 -05:00
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git_model "code.gitea.io/gitea/models/git"
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2021-12-09 20:27:50 -05:00
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repo_model "code.gitea.io/gitea/models/repo"
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2021-11-24 04:49:20 -05:00
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user_model "code.gitea.io/gitea/models/user"
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2020-01-12 07:11:17 -05:00
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"code.gitea.io/gitea/modules/git"
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Simplify how git repositories are opened (#28937)
## Purpose
This is a refactor toward building an abstraction over managing git
repositories.
Afterwards, it does not matter anymore if they are stored on the local
disk or somewhere remote.
## What this PR changes
We used `git.OpenRepository` everywhere previously.
Now, we should split them into two distinct functions:
Firstly, there are temporary repositories which do not change:
```go
git.OpenRepository(ctx, diskPath)
```
Gitea managed repositories having a record in the database in the
`repository` table are moved into the new package `gitrepo`:
```go
gitrepo.OpenRepository(ctx, repo_model.Repo)
```
Why is `repo_model.Repository` the second parameter instead of file
path?
Because then we can easily adapt our repository storage strategy.
The repositories can be stored locally, however, they could just as well
be stored on a remote server.
## Further changes in other PRs
- A Git Command wrapper on package `gitrepo` could be created. i.e.
`NewCommand(ctx, repo_model.Repository, commands...)`. `git.RunOpts{Dir:
repo.RepoPath()}`, the directory should be empty before invoking this
method and it can be filled in the function only. #28940
- Remove the `RepoPath()`/`WikiPath()` functions to reduce the
possibility of mistakes.
---------
Co-authored-by: delvh <dev.lh@web.de>
2024-01-27 15:09:51 -05:00
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"code.gitea.io/gitea/modules/gitrepo"
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2020-01-12 07:11:17 -05:00
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/util"
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2022-06-06 03:01:49 -05:00
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"github.com/gobwas/glob"
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2020-01-28 08:57:15 -05:00
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"github.com/huandu/xstrings"
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2020-01-12 07:11:17 -05:00
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)
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2020-01-28 08:57:15 -05:00
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type transformer struct {
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Name string
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Transform func(string) string
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}
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type expansion struct {
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Name string
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Value string
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Transformers []transformer
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}
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var defaultTransformers = []transformer{
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{Name: "SNAKE", Transform: xstrings.ToSnakeCase},
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{Name: "KEBAB", Transform: xstrings.ToKebabCase},
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{Name: "CAMEL", Transform: func(str string) string {
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return xstrings.FirstRuneToLower(xstrings.ToCamelCase(str))
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}},
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{Name: "PASCAL", Transform: xstrings.ToCamelCase},
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{Name: "LOWER", Transform: strings.ToLower},
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{Name: "UPPER", Transform: strings.ToUpper},
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{Name: "TITLE", Transform: util.ToTitleCase},
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}
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func generateExpansion(src string, templateRepo, generateRepo *repo_model.Repository, sanitizeFileName bool) string {
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expansions := []expansion{
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{Name: "REPO_NAME", Value: generateRepo.Name, Transformers: defaultTransformers},
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{Name: "TEMPLATE_NAME", Value: templateRepo.Name, Transformers: defaultTransformers},
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{Name: "REPO_DESCRIPTION", Value: generateRepo.Description, Transformers: nil},
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{Name: "TEMPLATE_DESCRIPTION", Value: templateRepo.Description, Transformers: nil},
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{Name: "REPO_OWNER", Value: generateRepo.OwnerName, Transformers: defaultTransformers},
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{Name: "TEMPLATE_OWNER", Value: templateRepo.OwnerName, Transformers: defaultTransformers},
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{Name: "REPO_LINK", Value: generateRepo.Link(), Transformers: nil},
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{Name: "TEMPLATE_LINK", Value: templateRepo.Link(), Transformers: nil},
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{Name: "REPO_HTTPS_URL", Value: generateRepo.CloneLink().HTTPS, Transformers: nil},
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{Name: "TEMPLATE_HTTPS_URL", Value: templateRepo.CloneLink().HTTPS, Transformers: nil},
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{Name: "REPO_SSH_URL", Value: generateRepo.CloneLink().SSH, Transformers: nil},
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{Name: "TEMPLATE_SSH_URL", Value: templateRepo.CloneLink().SSH, Transformers: nil},
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}
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expansionMap := make(map[string]string)
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for _, e := range expansions {
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expansionMap[e.Name] = e.Value
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for _, tr := range e.Transformers {
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expansionMap[fmt.Sprintf("%s_%s", e.Name, tr.Name)] = tr.Transform(e.Value)
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}
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}
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return os.Expand(src, func(key string) string {
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if expansion, ok := expansionMap[key]; ok {
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if sanitizeFileName {
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return fileNameSanitize(expansion)
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}
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return expansion
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}
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return key
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})
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}
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2022-06-06 03:01:49 -05:00
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// GiteaTemplate holds information about a .gitea/template file
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type GiteaTemplate struct {
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Path string
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Content []byte
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globs []glob.Glob
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}
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// Globs parses the .gitea/template globs or returns them if they were already parsed
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func (gt GiteaTemplate) Globs() []glob.Glob {
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if gt.globs != nil {
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return gt.globs
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}
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gt.globs = make([]glob.Glob, 0)
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scanner := bufio.NewScanner(bytes.NewReader(gt.Content))
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for scanner.Scan() {
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line := strings.TrimSpace(scanner.Text())
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if line == "" || strings.HasPrefix(line, "#") {
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continue
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}
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g, err := glob.Compile(line, '/')
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if err != nil {
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log.Info("Invalid glob expression '%s' (skipped): %v", line, err)
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continue
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}
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gt.globs = append(gt.globs, g)
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}
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return gt.globs
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}
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func checkGiteaTemplate(tmpDir string) (*GiteaTemplate, error) {
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gtPath := filepath.Join(tmpDir, ".gitea", "template")
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if _, err := os.Stat(gtPath); os.IsNotExist(err) {
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return nil, nil
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} else if err != nil {
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return nil, err
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}
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content, err := os.ReadFile(gtPath)
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if err != nil {
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return nil, err
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}
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gt := &GiteaTemplate{
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Path: gtPath,
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Content: content,
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}
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return gt, nil
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}
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2022-01-19 18:26:57 -05:00
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func generateRepoCommit(ctx context.Context, repo, templateRepo, generateRepo *repo_model.Repository, tmpDir string) error {
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commitTimeStr := time.Now().Format(time.RFC3339)
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authorSig := repo.Owner.NewGitSig()
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// Because this may call hooks we should pass in the environment
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env := append(os.Environ(),
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"GIT_AUTHOR_NAME="+authorSig.Name,
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"GIT_AUTHOR_EMAIL="+authorSig.Email,
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"GIT_AUTHOR_DATE="+commitTimeStr,
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"GIT_COMMITTER_NAME="+authorSig.Name,
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"GIT_COMMITTER_EMAIL="+authorSig.Email,
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"GIT_COMMITTER_DATE="+commitTimeStr,
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)
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// Clone to temporary path and do the init commit.
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templateRepoPath := templateRepo.RepoPath()
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if err := git.Clone(ctx, templateRepoPath, tmpDir, git.CloneRepoOptions{
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Depth: 1,
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Branch: templateRepo.DefaultBranch,
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}); err != nil {
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return fmt.Errorf("git clone: %w", err)
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}
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if err := util.RemoveAll(path.Join(tmpDir, ".git")); err != nil {
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return fmt.Errorf("remove git dir: %w", err)
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}
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// Variable expansion
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gt, err := checkGiteaTemplate(tmpDir)
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if err != nil {
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return fmt.Errorf("checkGiteaTemplate: %w", err)
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}
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if gt != nil {
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if err := util.Remove(gt.Path); err != nil {
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return fmt.Errorf("remove .giteatemplate: %w", err)
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}
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// Avoid walking tree if there are no globs
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if len(gt.Globs()) > 0 {
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tmpDirSlash := strings.TrimSuffix(filepath.ToSlash(tmpDir), "/") + "/"
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if err := filepath.WalkDir(tmpDirSlash, func(path string, d os.DirEntry, walkErr error) error {
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if walkErr != nil {
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return walkErr
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}
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2020-01-12 07:11:17 -05:00
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2023-01-16 11:21:44 -05:00
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if d.IsDir() {
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return nil
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}
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base := strings.TrimPrefix(filepath.ToSlash(path), tmpDirSlash)
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for _, g := range gt.Globs() {
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if g.Match(base) {
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content, err := os.ReadFile(path)
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if err != nil {
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return err
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}
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2021-09-22 00:38:34 -05:00
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if err := os.WriteFile(path,
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[]byte(generateExpansion(string(content), templateRepo, generateRepo, false)),
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0o644); err != nil {
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return err
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}
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substPath := filepath.FromSlash(filepath.Join(tmpDirSlash,
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generateExpansion(base, templateRepo, generateRepo, true)))
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// Create parent subdirectories if needed or continue silently if it exists
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if err := os.MkdirAll(filepath.Dir(substPath), 0o755); err != nil {
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return err
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}
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// Substitute filename variables
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if err := os.Rename(path, substPath); err != nil {
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return err
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}
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2020-01-28 08:57:15 -05:00
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break
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}
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}
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return nil
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}); err != nil {
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return err
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}
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}
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}
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2024-01-28 15:18:15 -05:00
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if err := git.InitRepository(ctx, tmpDir, false, templateRepo.ObjectFormatName); err != nil {
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2020-01-12 07:11:17 -05:00
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return err
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}
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repoPath := repo.RepoPath()
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if stdout, _, err := git.NewCommand(ctx, "remote", "add", "origin").AddDynamicArguments(repoPath).
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SetDescription(fmt.Sprintf("generateRepoCommit (git remote add): %s to %s", templateRepoPath, tmpDir)).
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RunStdString(&git.RunOpts{Dir: tmpDir, Env: env}); err != nil {
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log.Error("Unable to add %v as remote origin to temporary repo to %s: stdout %s\nError: %v", repo, tmpDir, stdout, err)
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return fmt.Errorf("git remote add: %w", err)
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}
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2022-03-26 21:56:28 -05:00
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// set default branch based on whether it's specified in the newly generated repo or not
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defaultBranch := repo.DefaultBranch
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if strings.TrimSpace(defaultBranch) == "" {
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defaultBranch = templateRepo.DefaultBranch
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}
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2023-09-06 07:08:51 -05:00
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return InitRepoCommit(ctx, tmpDir, repo, repo.Owner, defaultBranch)
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}
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2021-12-09 20:27:50 -05:00
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func generateGitContent(ctx context.Context, repo, templateRepo, generateRepo *repo_model.Repository) (err error) {
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tmpDir, err := os.MkdirTemp(os.TempDir(), "gitea-"+repo.Name)
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if err != nil {
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return fmt.Errorf("Failed to create temp dir for repository %s: %w", repo.RepoPath(), err)
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}
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defer func() {
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if err := util.RemoveAll(tmpDir); err != nil {
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log.Error("RemoveAll: %v", err)
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}
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}()
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2022-01-19 18:26:57 -05:00
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if err = generateRepoCommit(ctx, repo, templateRepo, generateRepo, tmpDir); err != nil {
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return fmt.Errorf("generateRepoCommit: %w", err)
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}
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// re-fetch repo
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if repo, err = repo_model.GetRepositoryByID(ctx, repo.ID); err != nil {
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return fmt.Errorf("getRepositoryByID: %w", err)
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}
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2022-03-26 21:56:28 -05:00
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// if there was no default branch supplied when generating the repo, use the default one from the template
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if strings.TrimSpace(repo.DefaultBranch) == "" {
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repo.DefaultBranch = templateRepo.DefaultBranch
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}
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Simplify how git repositories are opened (#28937)
## Purpose
This is a refactor toward building an abstraction over managing git
repositories.
Afterwards, it does not matter anymore if they are stored on the local
disk or somewhere remote.
## What this PR changes
We used `git.OpenRepository` everywhere previously.
Now, we should split them into two distinct functions:
Firstly, there are temporary repositories which do not change:
```go
git.OpenRepository(ctx, diskPath)
```
Gitea managed repositories having a record in the database in the
`repository` table are moved into the new package `gitrepo`:
```go
gitrepo.OpenRepository(ctx, repo_model.Repo)
```
Why is `repo_model.Repository` the second parameter instead of file
path?
Because then we can easily adapt our repository storage strategy.
The repositories can be stored locally, however, they could just as well
be stored on a remote server.
## Further changes in other PRs
- A Git Command wrapper on package `gitrepo` could be created. i.e.
`NewCommand(ctx, repo_model.Repository, commands...)`. `git.RunOpts{Dir:
repo.RepoPath()}`, the directory should be empty before invoking this
method and it can be filled in the function only. #28940
- Remove the `RepoPath()`/`WikiPath()` functions to reduce the
possibility of mistakes.
---------
Co-authored-by: delvh <dev.lh@web.de>
2024-01-27 15:09:51 -05:00
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gitRepo, err := gitrepo.OpenRepository(ctx, repo)
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2020-12-11 16:41:59 -05:00
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if err != nil {
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2022-10-24 14:29:17 -05:00
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return fmt.Errorf("openRepository: %w", err)
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2020-12-11 16:41:59 -05:00
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}
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defer gitRepo.Close()
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if err = gitRepo.SetDefaultBranch(repo.DefaultBranch); err != nil {
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2022-10-24 14:29:17 -05:00
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return fmt.Errorf("setDefaultBranch: %w", err)
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2020-12-11 16:41:59 -05:00
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}
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2022-06-06 03:01:49 -05:00
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if err = UpdateRepository(ctx, repo, false); err != nil {
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2022-10-24 14:29:17 -05:00
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return fmt.Errorf("updateRepository: %w", err)
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2020-01-12 07:11:17 -05:00
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}
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return nil
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}
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// GenerateGitContent generates git content from a template repository
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2021-12-09 20:27:50 -05:00
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func GenerateGitContent(ctx context.Context, templateRepo, generateRepo *repo_model.Repository) error {
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2020-01-12 07:11:17 -05:00
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if err := generateGitContent(ctx, generateRepo, templateRepo, generateRepo); err != nil {
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return err
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}
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2022-06-06 03:01:49 -05:00
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if err := UpdateRepoSize(ctx, generateRepo); err != nil {
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2022-10-24 14:29:17 -05:00
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return fmt.Errorf("failed to update size for repository: %w", err)
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2020-01-12 07:11:17 -05:00
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}
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2022-06-12 10:51:54 -05:00
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if err := git_model.CopyLFS(ctx, generateRepo, templateRepo); err != nil {
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2022-10-24 14:29:17 -05:00
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return fmt.Errorf("failed to copy LFS: %w", err)
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2020-01-12 07:11:17 -05:00
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}
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return nil
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}
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2022-06-06 03:01:49 -05:00
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// GenerateRepoOptions contains the template units to generate
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type GenerateRepoOptions struct {
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2023-07-20 23:32:47 -05:00
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Name string
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DefaultBranch string
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Description string
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Private bool
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GitContent bool
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Topics bool
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GitHooks bool
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Webhooks bool
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Avatar bool
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IssueLabels bool
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ProtectedBranch bool
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2022-06-06 03:01:49 -05:00
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}
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// IsValid checks whether at least one option is chosen for generation
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func (gro GenerateRepoOptions) IsValid() bool {
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2023-07-20 23:32:47 -05:00
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return gro.GitContent || gro.Topics || gro.GitHooks || gro.Webhooks || gro.Avatar ||
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gro.IssueLabels || gro.ProtectedBranch // or other items as they are added
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2022-06-06 03:01:49 -05:00
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}
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2020-01-12 07:11:17 -05:00
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// GenerateRepository generates a repository from a template
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2022-06-06 03:01:49 -05:00
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func GenerateRepository(ctx context.Context, doer, owner *user_model.User, templateRepo *repo_model.Repository, opts GenerateRepoOptions) (_ *repo_model.Repository, err error) {
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2021-12-09 20:27:50 -05:00
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generateRepo := &repo_model.Repository{
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2024-01-28 15:18:15 -05:00
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OwnerID: owner.ID,
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Owner: owner,
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OwnerName: owner.Name,
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Name: opts.Name,
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LowerName: strings.ToLower(opts.Name),
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Description: opts.Description,
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DefaultBranch: opts.DefaultBranch,
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IsPrivate: opts.Private,
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IsEmpty: !opts.GitContent || templateRepo.IsEmpty,
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IsFsckEnabled: templateRepo.IsFsckEnabled,
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TemplateID: templateRepo.ID,
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TrustModel: templateRepo.TrustModel,
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ObjectFormatName: templateRepo.ObjectFormatName,
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2020-01-12 07:11:17 -05:00
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}
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2023-02-04 01:48:38 -05:00
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if err = CreateRepositoryByExample(ctx, doer, owner, generateRepo, false, false); err != nil {
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2020-01-12 07:11:17 -05:00
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return nil, err
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}
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2020-09-24 23:09:23 -05:00
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repoPath := generateRepo.RepoPath()
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2020-11-27 21:42:08 -05:00
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isExist, err := util.IsExist(repoPath)
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if err != nil {
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log.Error("Unable to check if %s exists. Error: %v", repoPath, err)
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return nil, err
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}
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if isExist {
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2021-12-12 10:48:20 -05:00
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return nil, repo_model.ErrRepoFilesAlreadyExist{
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2020-09-24 23:09:23 -05:00
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Uname: generateRepo.OwnerName,
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Name: generateRepo.Name,
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}
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}
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2024-01-28 15:18:15 -05:00
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if err = CheckInitRepository(ctx, owner.Name, generateRepo.Name, generateRepo.ObjectFormatName); err != nil {
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2020-01-12 07:11:17 -05:00
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return generateRepo, err
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}
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2022-06-06 03:01:49 -05:00
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if err = CheckDaemonExportOK(ctx, generateRepo); err != nil {
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2022-10-24 14:29:17 -05:00
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return generateRepo, fmt.Errorf("checkDaemonExportOK: %w", err)
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2021-10-13 14:47:02 -05:00
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}
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2022-03-31 21:55:30 -05:00
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if stdout, _, err := git.NewCommand(ctx, "update-server-info").
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2021-10-13 14:47:02 -05:00
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SetDescription(fmt.Sprintf("GenerateRepository(git update-server-info): %s", repoPath)).
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2022-03-31 21:55:30 -05:00
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RunStdString(&git.RunOpts{Dir: repoPath}); err != nil {
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2021-10-13 14:47:02 -05:00
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log.Error("GenerateRepository(git update-server-info) in %v: Stdout: %s\nError: %v", generateRepo, stdout, err)
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2022-10-24 14:29:17 -05:00
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return generateRepo, fmt.Errorf("error in GenerateRepository(git update-server-info): %w", err)
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2021-10-13 14:47:02 -05:00
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}
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2020-01-12 07:11:17 -05:00
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return generateRepo, nil
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}
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2023-06-20 16:14:47 -05:00
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2023-06-21 14:57:18 -05:00
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var fileNameSanitizeRegexp = regexp.MustCompile(`(?i)\.\.|[<>:\"/\\|?*\x{0000}-\x{001F}]|^(con|prn|aux|nul|com\d|lpt\d)$`)
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2023-06-20 16:14:47 -05:00
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// Sanitize user input to valid OS filenames
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//
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// Based on https://github.com/sindresorhus/filename-reserved-regex
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// Adds ".." to prevent directory traversal
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func fileNameSanitize(s string) string {
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2023-06-21 14:57:18 -05:00
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return strings.TrimSpace(fileNameSanitizeRegexp.ReplaceAllString(s, "_"))
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2023-06-20 16:14:47 -05:00
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}
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