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Migrate temp_repo.go to use git.NewCommand (#8918)

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This PR migrates temp_repo.go to use git.NewCommand instead creating processes by itself - this fixes the problem underlying PR #8905.

There are other places that run git outside of the controlled locale defined in #8548 but temp_repo.go is the only cause of failure of local testing in cases where English is not the default - implying that error messages from those other commands are not interpreted.

Replaces #8905
This commit is contained in:
zeripath 2019-11-11 11:46:28 +00:00 committed by GitHub
parent 8d9e625f83
commit 74bb292fe3
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
2 changed files with 91 additions and 161 deletions
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11
modules/git/command.go
View file

@ -67,6 +67,13 @@ func (c *Command) RunInDirTimeoutEnvPipeline(env []string, timeout time.Duration
// RunInDirTimeoutEnvFullPipeline executes the command in given directory with given timeout, // RunInDirTimeoutEnvFullPipeline executes the command in given directory with given timeout,
// it pipes stdout and stderr to given io.Writer and passes in an io.Reader as stdin. // it pipes stdout and stderr to given io.Writer and passes in an io.Reader as stdin.
func (c *Command) RunInDirTimeoutEnvFullPipeline(env []string, timeout time.Duration, dir string, stdout, stderr io.Writer, stdin io.Reader) error { func (c *Command) RunInDirTimeoutEnvFullPipeline(env []string, timeout time.Duration, dir string, stdout, stderr io.Writer, stdin io.Reader) error {
return c.RunInDirTimeoutEnvFullPipelineFunc(env, timeout, dir, stdout, stderr, stdin, nil)
}
// RunInDirTimeoutEnvFullPipelineFunc executes the command in given directory with given timeout,
// it pipes stdout and stderr to given io.Writer and passes in an io.Reader as stdin. Between cmd.Start and cmd.Wait the passed in function is run.
func (c *Command) RunInDirTimeoutEnvFullPipelineFunc(env []string, timeout time.Duration, dir string, stdout, stderr io.Writer, stdin io.Reader, fn func(context.Context, context.CancelFunc)) error {
if timeout == -1 { if timeout == -1 {
timeout = DefaultCommandExecutionTimeout timeout = DefaultCommandExecutionTimeout
} }
@ -98,6 +105,10 @@ func (c *Command) RunInDirTimeoutEnvFullPipeline(env []string, timeout time.Dura
pid := process.GetManager().Add(fmt.Sprintf("%s %s %s [repo_path: %s]", GitExecutable, c.name, strings.Join(c.args, " "), dir), cmd) pid := process.GetManager().Add(fmt.Sprintf("%s %s %s [repo_path: %s]", GitExecutable, c.name, strings.Join(c.args, " "), dir), cmd)
defer process.GetManager().Remove(pid) defer process.GetManager().Remove(pid)
if fn != nil {
fn(ctx, cancel)
}
if err := cmd.Wait(); err != nil { if err := cmd.Wait(); err != nil {
return err return err
} }

241
modules/repofiles/temp_repo.go
View file

@ -10,7 +10,6 @@ import (
"fmt" "fmt"
"io" "io"
"os" "os"
"os/exec"
"regexp" "regexp"
"strings" "strings"
"time" "time"
@ -18,7 +17,6 @@ import (
"code.gitea.io/gitea/models" "code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/git" "code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log" "code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/process"
"code.gitea.io/gitea/modules/setting" "code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/services/gitdiff" "code.gitea.io/gitea/services/gitdiff"
@ -51,9 +49,8 @@ func (t *TemporaryUploadRepository) Close() {
// Clone the base repository to our path and set branch as the HEAD // Clone the base repository to our path and set branch as the HEAD
func (t *TemporaryUploadRepository) Clone(branch string) error { func (t *TemporaryUploadRepository) Clone(branch string) error {
if _, stderr, err := process.GetManager().ExecTimeout(5*time.Minute, if _, err := git.NewCommand("clone", "-s", "--bare", "-b", branch, t.repo.RepoPath(), t.basePath).Run(); err != nil {
fmt.Sprintf("Clone (git clone -s --bare): %s", t.basePath), stderr := err.Error()
git.GitExecutable, "clone", "-s", "--bare", "-b", branch, t.repo.RepoPath(), t.basePath); err != nil {
if matched, _ := regexp.MatchString(".*Remote branch .* not found in upstream origin.*", stderr); matched { if matched, _ := regexp.MatchString(".*Remote branch .* not found in upstream origin.*", stderr); matched {
return git.ErrBranchNotExist{ return git.ErrBranchNotExist{
Name: branch, Name: branch,
@ -79,11 +76,8 @@ func (t *TemporaryUploadRepository) Clone(branch string) error {
// SetDefaultIndex sets the git index to our HEAD // SetDefaultIndex sets the git index to our HEAD
func (t *TemporaryUploadRepository) SetDefaultIndex() error { func (t *TemporaryUploadRepository) SetDefaultIndex() error {
if _, stderr, err := process.GetManager().ExecDir(5*time.Minute, if _, err := git.NewCommand("read-tree", "HEAD").RunInDir(t.basePath); err != nil {
t.basePath, return fmt.Errorf("SetDefaultIndex: %v", err)
fmt.Sprintf("SetDefaultIndex (git read-tree HEAD): %s", t.basePath),
git.GitExecutable, "read-tree", "HEAD"); err != nil {
return fmt.Errorf("SetDefaultIndex: %v %s", err, stderr)
} }
return nil return nil
} }
@ -93,10 +87,6 @@ func (t *TemporaryUploadRepository) LsFiles(filenames ...string) ([]string, erro
stdOut := new(bytes.Buffer) stdOut := new(bytes.Buffer)
stdErr := new(bytes.Buffer) stdErr := new(bytes.Buffer)
timeout := 5 * time.Minute
ctx, cancel := context.WithTimeout(context.Background(), timeout)
defer cancel()
cmdArgs := []string{"ls-files", "-z", "--"} cmdArgs := []string{"ls-files", "-z", "--"}
for _, arg := range filenames { for _, arg := range filenames {
if arg != "" { if arg != "" {
@ -104,22 +94,9 @@ func (t *TemporaryUploadRepository) LsFiles(filenames ...string) ([]string, erro
} }
} }
cmd := exec.CommandContext(ctx, git.GitExecutable, cmdArgs...) if err := git.NewCommand(cmdArgs...).RunInDirPipeline(t.basePath, stdOut, stdErr); err != nil {
desc := fmt.Sprintf("lsFiles: (git ls-files) %v", cmdArgs) log.Error("Unable to run git ls-files for temporary repo: %s (%s) Error: %v\nstdout: %s\nstderr: %s", t.repo.FullName(), t.basePath, err, stdOut.String(), stdErr.String())
cmd.Dir = t.basePath err = fmt.Errorf("Unable to run git ls-files for temporary repo of: %s Error: %v\nstdout: %s\nstderr: %s", t.repo.FullName(), err, stdOut.String(), stdErr.String())
cmd.Stdout = stdOut
cmd.Stderr = stdErr
if err := cmd.Start(); err != nil {
return nil, fmt.Errorf("exec(%s) failed: %v(%v)", desc, err, ctx.Err())
}
pid := process.GetManager().Add(desc, cmd)
err := cmd.Wait()
process.GetManager().Remove(pid)
if err != nil {
err = fmt.Errorf("exec(%d:%s) failed: %v(%v) stdout: %v stderr: %v", pid, desc, err, ctx.Err(), stdOut, stdErr)
return nil, err return nil, err
} }
@ -128,7 +105,7 @@ func (t *TemporaryUploadRepository) LsFiles(filenames ...string) ([]string, erro
filelist = append(filelist, string(line)) filelist = append(filelist, string(line))
} }
return filelist, err return filelist, nil
} }
// RemoveFilesFromIndex removes the given files from the index // RemoveFilesFromIndex removes the given files from the index
@ -144,90 +121,50 @@ func (t *TemporaryUploadRepository) RemoveFilesFromIndex(filenames ...string) er
} }
} }
timeout := 5 * time.Minute if err := git.NewCommand("update-index", "--remove", "-z", "--index-info").RunInDirFullPipeline(t.basePath, stdOut, stdErr, stdIn); err != nil {
ctx, cancel := context.WithTimeout(context.Background(), timeout) log.Error("Unable to update-index for temporary repo: %s (%s) Error: %v\nstdout: %s\nstderr: %s", t.repo.FullName(), t.basePath, err, stdOut.String(), stdErr.String())
defer cancel() return fmt.Errorf("Unable to update-index for temporary repo: %s Error: %v\nstdout: %s\nstderr: %s", t.repo.FullName(), err, stdOut.String(), stdErr.String())
cmdArgs := []string{"update-index", "--remove", "-z", "--index-info"}
cmd := exec.CommandContext(ctx, git.GitExecutable, cmdArgs...)
desc := fmt.Sprintf("removeFilesFromIndex: (git update-index) %v", filenames)
cmd.Dir = t.basePath
cmd.Stdout = stdOut
cmd.Stderr = stdErr
cmd.Stdin = bytes.NewReader(stdIn.Bytes())
if err := cmd.Start(); err != nil {
return fmt.Errorf("exec(%s) failed: %v(%v)", desc, err, ctx.Err())
} }
return nil
pid := process.GetManager().Add(desc, cmd)
err := cmd.Wait()
process.GetManager().Remove(pid)
if err != nil {
err = fmt.Errorf("exec(%d:%s) failed: %v(%v) stdout: %v stderr: %v", pid, desc, err, ctx.Err(), stdOut, stdErr)
}
return err
} }
// HashObject writes the provided content to the object db and returns its hash // HashObject writes the provided content to the object db and returns its hash
func (t *TemporaryUploadRepository) HashObject(content io.Reader) (string, error) { func (t *TemporaryUploadRepository) HashObject(content io.Reader) (string, error) {
timeout := 5 * time.Minute stdOut := new(bytes.Buffer)
ctx, cancel := context.WithTimeout(context.Background(), timeout) stdErr := new(bytes.Buffer)
defer cancel()
hashCmd := exec.CommandContext(ctx, git.GitExecutable, "hash-object", "-w", "--stdin") if err := git.NewCommand("hash-object", "-w", "--stdin").RunInDirFullPipeline(t.basePath, stdOut, stdErr, content); err != nil {
hashCmd.Dir = t.basePath log.Error("Unable to hash-object to temporary repo: %s (%s) Error: %v\nstdout: %s\nstderr: %s", t.repo.FullName(), t.basePath, err, stdOut.String(), stdErr.String())
hashCmd.Stdin = content return "", fmt.Errorf("Unable to hash-object to temporary repo: %s Error: %v\nstdout: %s\nstderr: %s", t.repo.FullName(), err, stdOut.String(), stdErr.String())
stdOutBuffer := new(bytes.Buffer)
stdErrBuffer := new(bytes.Buffer)
hashCmd.Stdout = stdOutBuffer
hashCmd.Stderr = stdErrBuffer
desc := fmt.Sprintf("hashObject: (git hash-object)")
if err := hashCmd.Start(); err != nil {
return "", fmt.Errorf("git hash-object: %s", err)
} }
pid := process.GetManager().Add(desc, hashCmd) return strings.TrimSpace(stdOut.String()), nil
err := hashCmd.Wait()
process.GetManager().Remove(pid)
if err != nil {
err = fmt.Errorf("exec(%d:%s) failed: %v(%v) stdout: %v stderr: %v", pid, desc, err, ctx.Err(), stdOutBuffer, stdErrBuffer)
return "", err
}
return strings.TrimSpace(stdOutBuffer.String()), nil
} }
// AddObjectToIndex adds the provided object hash to the index with the provided mode and path // AddObjectToIndex adds the provided object hash to the index with the provided mode and path
func (t *TemporaryUploadRepository) AddObjectToIndex(mode, objectHash, objectPath string) error { func (t *TemporaryUploadRepository) AddObjectToIndex(mode, objectHash, objectPath string) error {
if _, stderr, err := process.GetManager().ExecDir(5*time.Minute, if _, err := git.NewCommand("update-index", "--add", "--replace", "--cacheinfo", mode, objectHash, objectPath).RunInDir(t.basePath); err != nil {
t.basePath, stderr := err.Error()
fmt.Sprintf("addObjectToIndex (git update-index): %s", t.basePath),
git.GitExecutable, "update-index", "--add", "--replace", "--cacheinfo", mode, objectHash, objectPath); err != nil {
if matched, _ := regexp.MatchString(".*Invalid path '.*", stderr); matched { if matched, _ := regexp.MatchString(".*Invalid path '.*", stderr); matched {
return models.ErrFilePathInvalid{ return models.ErrFilePathInvalid{
Message: objectPath, Message: objectPath,
Path: objectPath, Path: objectPath,
} }
} }
return fmt.Errorf("git update-index: %s", stderr) log.Error("Unable to add object to index: %s %s %s in temporary repo %s(%s) Error: %v", mode, objectHash, objectPath, t.repo.FullName(), t.basePath, err)
return fmt.Errorf("Unable to add object to index at %s in temporary repo %s Error: %v", objectPath, t.repo.FullName(), err)
} }
return nil return nil
} }
// WriteTree writes the current index as a tree to the object db and returns its hash // WriteTree writes the current index as a tree to the object db and returns its hash
func (t *TemporaryUploadRepository) WriteTree() (string, error) { func (t *TemporaryUploadRepository) WriteTree() (string, error) {
treeHash, stderr, err := process.GetManager().ExecDir(5*time.Minute, stdout, err := git.NewCommand("write-tree").RunInDir(t.basePath)
t.basePath,
fmt.Sprintf("WriteTree (git write-tree): %s", t.basePath),
git.GitExecutable, "write-tree")
if err != nil { if err != nil {
return "", fmt.Errorf("git write-tree: %s", stderr) log.Error("Unable to write tree in temporary repo: %s(%s): Error: %v", t.repo.FullName(), t.basePath, err)
return "", fmt.Errorf("Unable to write-tree in temporary repo for: %s Error: %v", t.repo.FullName(), err)
} }
return strings.TrimSpace(treeHash), nil return strings.TrimSpace(stdout), nil
} }
// GetLastCommit gets the last commit ID SHA of the repo // GetLastCommit gets the last commit ID SHA of the repo
@ -240,14 +177,12 @@ func (t *TemporaryUploadRepository) GetLastCommitByRef(ref string) (string, erro
if ref == "" { if ref == "" {
ref = "HEAD" ref = "HEAD"
} }
treeHash, stderr, err := process.GetManager().ExecDir(5*time.Minute, stdout, err := git.NewCommand("rev-parse", ref).RunInDir(t.basePath)
t.basePath,
fmt.Sprintf("GetLastCommit (git rev-parse %s): %s", ref, t.basePath),
git.GitExecutable, "rev-parse", ref)
if err != nil { if err != nil {
return "", fmt.Errorf("git rev-parse %s: %s", ref, stderr) log.Error("Unable to get last ref for %s in temporary repo: %s(%s): Error: %v", ref, t.repo.FullName(), t.basePath, err)
return "", fmt.Errorf("Unable to rev-parse %s in temporary repo for: %s Error: %v", ref, t.repo.FullName(), err)
} }
return strings.TrimSpace(treeHash), nil return strings.TrimSpace(stdout), nil
} }
// CommitTree creates a commit from a given tree for the user with provided message // CommitTree creates a commit from a given tree for the user with provided message
@ -287,16 +222,15 @@ func (t *TemporaryUploadRepository) CommitTree(author, committer *models.User, t
} }
} }
commitHash, stderr, err := process.GetManager().ExecDirEnvStdIn(5*time.Minute, stdout := new(bytes.Buffer)
t.basePath, stderr := new(bytes.Buffer)
fmt.Sprintf("commitTree (git commit-tree): %s", t.basePath), if err := git.NewCommand(args...).RunInDirTimeoutEnvFullPipeline(env, -1, t.basePath, stdout, stderr, messageBytes); err != nil {
env, log.Error("Unable to commit-tree in temporary repo: %s (%s) Error: %v\nStdout: %s\nStderr: %s",
messageBytes, t.repo.FullName(), t.basePath, err, stdout, stderr)
git.GitExecutable, args...) return "", fmt.Errorf("Unable to commit-tree in temporary repo: %s Error: %v\nStdout: %s\nStderr: %s",
if err != nil { t.repo.FullName(), err, stdout, stderr)
return "", fmt.Errorf("git commit-tree: %s", stderr)
} }
return strings.TrimSpace(commitHash), nil return strings.TrimSpace(stdout.String()), nil
} }
// Push the provided commitHash to the repository branch by the provided user // Push the provided commitHash to the repository branch by the provided user
@ -304,47 +238,48 @@ func (t *TemporaryUploadRepository) Push(doer *models.User, commitHash string, b
// Because calls hooks we need to pass in the environment // Because calls hooks we need to pass in the environment
env := models.PushingEnvironment(doer, t.repo) env := models.PushingEnvironment(doer, t.repo)
if _, stderr, err := process.GetManager().ExecDirEnv(5*time.Minute, if _, err := git.NewCommand("push", t.repo.RepoPath(), strings.TrimSpace(commitHash)+":refs/heads/"+strings.TrimSpace(branch)).RunInDirWithEnv(t.basePath, env); err != nil {
t.basePath, log.Error("Unable to push back to repo from temporary repo: %s (%s) Error: %v",
fmt.Sprintf("actuallyPush (git push): %s", t.basePath), t.repo.FullName(), t.basePath, err)
env, return fmt.Errorf("Unable to push back to repo from temporary repo: %s (%s) Error: %v",
git.GitExecutable, "push", t.repo.RepoPath(), strings.TrimSpace(commitHash)+":refs/heads/"+strings.TrimSpace(branch)); err != nil { t.repo.FullName(), t.basePath, err)
return fmt.Errorf("git push: %s", stderr)
} }
return nil return nil
} }
// DiffIndex returns a Diff of the current index to the head // DiffIndex returns a Diff of the current index to the head
func (t *TemporaryUploadRepository) DiffIndex() (diff *gitdiff.Diff, err error) { func (t *TemporaryUploadRepository) DiffIndex() (*gitdiff.Diff, error) {
timeout := 5 * time.Minute stdoutReader, stdoutWriter, err := os.Pipe()
ctx, cancel := context.WithTimeout(context.Background(), timeout)
defer cancel()
stdErr := new(bytes.Buffer)
cmd := exec.CommandContext(ctx, git.GitExecutable, "diff-index", "--cached", "-p", "HEAD")
cmd.Dir = t.basePath
cmd.Stderr = stdErr
stdout, err := cmd.StdoutPipe()
if err != nil { if err != nil {
return nil, fmt.Errorf("StdoutPipe: %v stderr %s", err, stdErr.String()) log.Error("Unable to open stdout pipe: %v", err)
return nil, fmt.Errorf("Unable to open stdout pipe: %v", err)
} }
defer func() {
_ = stdoutReader.Close()
_ = stdoutWriter.Close()
}()
stderr := new(bytes.Buffer)
var diff *gitdiff.Diff
var finalErr error
if err = cmd.Start(); err != nil { if err := git.NewCommand("diff-index", "--cached", "-p", "HEAD").
return nil, fmt.Errorf("Start: %v stderr %s", err, stdErr.String()) RunInDirTimeoutEnvFullPipelineFunc(nil, 30*time.Second, t.basePath, stdoutWriter, stderr, nil, func(ctx context.Context, cancel context.CancelFunc) {
} _ = stdoutWriter.Close()
diff, finalErr = gitdiff.ParsePatch(setting.Git.MaxGitDiffLines, setting.Git.MaxGitDiffLineCharacters, setting.Git.MaxGitDiffFiles, stdoutReader)
pid := process.GetManager().Add(fmt.Sprintf("diffIndex [repo_path: %s]", t.repo.RepoPath()), cmd) if finalErr != nil {
defer process.GetManager().Remove(pid) log.Error("ParsePatch: %v", finalErr)
cancel()
diff, err = gitdiff.ParsePatch(setting.Git.MaxGitDiffLines, setting.Git.MaxGitDiffLineCharacters, setting.Git.MaxGitDiffFiles, stdout) }
if err != nil { _ = stdoutReader.Close()
return nil, fmt.Errorf("ParsePatch: %v", err) }); err != nil {
} if finalErr != nil {
log.Error("Unable to ParsePatch in temporary repo %s (%s). Error: %v", t.repo.FullName(), t.basePath, finalErr)
if err = cmd.Wait(); err != nil { return nil, finalErr
return nil, fmt.Errorf("Wait: %v", err) }
log.Error("Unable to run diff-index pipeline in temporary repo %s (%s). Error: %v\nStderr: %s",
t.repo.FullName(), t.basePath, err, stderr)
return nil, fmt.Errorf("Unable to run diff-index pipeline in temporary repo %s. Error: %v\nStderr: %s",
t.repo.FullName(), err, stderr)
} }
return diff, nil return diff, nil
@ -358,12 +293,8 @@ func (t *TemporaryUploadRepository) CheckAttribute(attribute string, args ...str
return nil, err return nil, err
} }
stdOut := new(bytes.Buffer) stdout := new(bytes.Buffer)
stdErr := new(bytes.Buffer) stderr := new(bytes.Buffer)
timeout := 5 * time.Minute
ctx, cancel := context.WithTimeout(context.Background(), timeout)
defer cancel()
cmdArgs := []string{"check-attr", "-z", attribute} cmdArgs := []string{"check-attr", "-z", attribute}
@ -379,26 +310,14 @@ func (t *TemporaryUploadRepository) CheckAttribute(attribute string, args ...str
} }
} }
cmd := exec.CommandContext(ctx, git.GitExecutable, cmdArgs...) if err := git.NewCommand(cmdArgs...).RunInDirPipeline(t.basePath, stdout, stderr); err != nil {
desc := fmt.Sprintf("checkAttr: (git check-attr) %s %v", attribute, cmdArgs) log.Error("Unable to check-attr in temporary repo: %s (%s) Error: %v\nStdout: %s\nStderr: %s",
cmd.Dir = t.basePath t.repo.FullName(), t.basePath, err, stdout, stderr)
cmd.Stdout = stdOut return nil, fmt.Errorf("Unable to check-attr in temporary repo: %s Error: %v\nStdout: %s\nStderr: %s",
cmd.Stderr = stdErr t.repo.FullName(), err, stdout, stderr)
if err := cmd.Start(); err != nil {
return nil, fmt.Errorf("exec(%s) failed: %v(%v)", desc, err, ctx.Err())
} }
pid := process.GetManager().Add(desc, cmd) fields := bytes.Split(stdout.Bytes(), []byte{'\000'})
err = cmd.Wait()
process.GetManager().Remove(pid)
if err != nil {
err = fmt.Errorf("exec(%d:%s) failed: %v(%v) stdout: %v stderr: %v", pid, desc, err, ctx.Err(), stdOut, stdErr)
return nil, err
}
fields := bytes.Split(stdOut.Bytes(), []byte{'\000'})
if len(fields)%3 != 1 { if len(fields)%3 != 1 {
return nil, fmt.Errorf("Wrong number of fields in return from check-attr") return nil, fmt.Errorf("Wrong number of fields in return from check-attr")