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Handle push rejection message in Merge & Web Editor (#10373) (#10497)

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Backport #10373

* Handle push rejection message in Merge

* Fix sanitize, adjust message handling

* Handle push-rejection in webeditor CRUD too

Co-authored-by: Lauris BH <lauris@nix.lv>

Co-authored-by: Lauris BH <lauris@nix.lv>
This commit is contained in:
zeripath 2020-02-27 13:37:11 +00:00 committed by GitHub
parent 93860af542
commit 5d11ccc9e1
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GPG Key ID: 4AEE18F83AFDEB23
8 changed files with 136 additions and 18 deletions
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48
models/error.go
View File

@ -7,6 +7,7 @@ package models
import (
"fmt"
"strings"
"code.gitea.io/gitea/modules/git"
)
@ -1370,6 +1371,53 @@ func (err ErrMergePushOutOfDate) Error() string {
return fmt.Sprintf("Merge PushOutOfDate Error: %v: %s\n%s", err.Err, err.StdErr, err.StdOut)
}
// ErrPushRejected represents an error if merging fails due to rejection from a hook
type ErrPushRejected struct {
Style MergeStyle
Message string
StdOut string
StdErr string
Err error
}
// IsErrPushRejected checks if an error is a ErrPushRejected.
func IsErrPushRejected(err error) bool {
_, ok := err.(ErrPushRejected)
return ok
}
func (err ErrPushRejected) Error() string {
return fmt.Sprintf("Merge PushRejected Error: %v: %s\n%s", err.Err, err.StdErr, err.StdOut)
}
// GenerateMessage generates the remote message from the stderr
func (err *ErrPushRejected) GenerateMessage() {
messageBuilder := &strings.Builder{}
i := strings.Index(err.StdErr, "remote: ")
if i < 0 {
err.Message = ""
return
}
for {
if len(err.StdErr) <= i+8 {
break
}
if err.StdErr[i:i+8] != "remote: " {
break
}
i += 8
nl := strings.IndexByte(err.StdErr[i:], '\n')
if nl > 0 {
messageBuilder.WriteString(err.StdErr[i : i+nl+1])
i = i + nl + 1
} else {
messageBuilder.WriteString(err.StdErr[i:])
i = len(err.StdErr)
}
}
err.Message = strings.TrimSpace(messageBuilder.String())
}
// ErrRebaseConflicts represents an error if rebase fails with a conflict
type ErrRebaseConflicts struct {
Style MergeStyle

26
modules/repofiles/temp_repo.go
View File

@ -242,10 +242,30 @@ func (t *TemporaryUploadRepository) CommitTreeWithDate(author, committer *models
func (t *TemporaryUploadRepository) Push(doer *models.User, commitHash string, branch string) error {
// Because calls hooks we need to pass in the environment
env := models.PushingEnvironment(doer, t.repo)
stdout := &strings.Builder{}
stderr := &strings.Builder{}
if _, err := git.NewCommand("push", t.repo.RepoPath(), strings.TrimSpace(commitHash)+":refs/heads/"+strings.TrimSpace(branch)).RunInDirWithEnv(t.basePath, env); err != nil {
log.Error("Unable to push back to repo from temporary repo: %s (%s) Error: %v",
t.repo.FullName(), t.basePath, err)
if err := git.NewCommand("push", t.repo.RepoPath(), strings.TrimSpace(commitHash)+":refs/heads/"+strings.TrimSpace(branch)).RunInDirTimeoutEnvPipeline(env, -1, t.basePath, stdout, stderr); err != nil {
errString := stderr.String()
if strings.Contains(errString, "non-fast-forward") {
return models.ErrMergePushOutOfDate{
StdOut: stdout.String(),
StdErr: errString,
Err: err,
}
} else if strings.Contains(errString, "! [remote rejected]") {
log.Error("Unable to push back to repo from temporary repo due to rejection: %s (%s)\nStdout: %s\nStderr: %s\nError: %v",
t.repo.FullName(), t.basePath, stdout, errString, err)
err := models.ErrPushRejected{
StdOut: stdout.String(),
StdErr: errString,
Err: err,
}
err.GenerateMessage()
return err
}
log.Error("Unable to push back to repo from temporary repo: %s (%s)\nStdout: %s\nError: %v",
t.repo.FullName(), t.basePath, stdout, err)
return fmt.Errorf("Unable to push back to repo from temporary repo: %s (%s) Error: %v",
t.repo.FullName(), t.basePath, err)
}

4
options/locale/locale_en-US.ini
View File

@ -776,6 +776,8 @@ editor.commit_empty_file_header = Commit an empty file
editor.commit_empty_file_text = The file you're about commit is empty. Proceed?
editor.no_changes_to_show = There are no changes to show.
editor.fail_to_update_file = Failed to update/create file '%s' with error: %v
editor.push_rejected_no_message = The change was rejected by the server without a message. Please check githooks.
editor.push_rejected = The change was rejected by the server with the following message:<br>%s<br> Please check githooks.
editor.add_subdir = Add a directory…
editor.unable_to_upload_files = Failed to upload files to '%s' with error: %v
editor.upload_file_is_locked = File '%s' is locked by %s.
@ -1075,6 +1077,8 @@ pulls.merge_conflict = Merge Failed: There was a conflict whilst merging: %[1]s<
pulls.rebase_conflict = Merge Failed: There was a conflict whilst rebasing commit: %[1]s<br>%[2]s<br>%[3]s<br>Hint:Try a different strategy
pulls.unrelated_histories = Merge Failed: The merge head and base do not share a common history. Hint: Try a different strategy
pulls.merge_out_of_date = Merge Failed: Whilst generating the merge, the base was updated. Hint: Try again.
pulls.push_rejected = Merge Failed: The push was rejected with the following message:<br>%s<br>Review the githooks for this repository
pulls.push_rejected_no_message = Merge Failed: The push was rejected but there was no remote message.<br>Review the githooks for this repository
pulls.open_unmerged_pull_exists = `You cannot perform a reopen operation because there is a pending pull request (#%d) with identical properties.`
pulls.status_checking = Some checks are pending
pulls.status_checks_success = All checks were successful

8
routers/api/v1/repo/pull.go
View File

@ -645,6 +645,14 @@ func MergePullRequest(ctx *context.APIContext, form auth.MergePullRequestForm) {
} else if models.IsErrMergePushOutOfDate(err) {
ctx.Error(http.StatusConflict, "Merge", "merge push out of date")
return
} else if models.IsErrPushRejected(err) {
errPushRej := err.(models.ErrPushRejected)
if len(errPushRej.Message) == 0 {
ctx.Error(http.StatusConflict, "Merge", "PushRejected without remote error message")
return
}
ctx.Error(http.StatusConflict, "Merge", "PushRejected with remote message: "+errPushRej.Message)
return
}
ctx.Error(http.StatusInternalServerError, "Merge", err)
return

21
routers/repo/editor.go
View File

@ -22,6 +22,7 @@ import (
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/upload"
"code.gitea.io/gitea/modules/util"
"code.gitea.io/gitea/routers/utils"
)
const (
@ -262,10 +263,17 @@ func editFilePost(ctx *context.Context, form auth.EditRepoFileForm, isNewFile bo
} else {
ctx.Error(500, err.Error())
}
} else if models.IsErrCommitIDDoesNotMatch(err) {
} else if models.IsErrCommitIDDoesNotMatch(err) || models.IsErrMergePushOutOfDate(err) {
ctx.RenderWithErr(ctx.Tr("repo.editor.file_changed_while_editing", ctx.Repo.RepoLink+"/compare/"+form.LastCommit+"..."+ctx.Repo.CommitID), tplEditFile, &form)
} else if models.IsErrPushRejected(err) {
errPushRej := err.(models.ErrPushRejected)
if len(errPushRej.Message) == 0 {
ctx.RenderWithErr(ctx.Tr("repo.editor.push_rejected_no_message"), tplEditFile, &form)
} else {
ctx.RenderWithErr(ctx.Tr("repo.editor.push_rejected", utils.SanitizeFlashErrorString(errPushRej.Message)), tplEditFile, &form)
}
} else {
ctx.RenderWithErr(ctx.Tr("repo.editor.fail_to_update_file", form.TreePath, err), tplEditFile, &form)
ctx.RenderWithErr(ctx.Tr("repo.editor.fail_to_update_file", form.TreePath, utils.SanitizeFlashErrorString(err.Error())), tplEditFile, &form)
}
}
@ -426,8 +434,15 @@ func DeleteFilePost(ctx *context.Context, form auth.DeleteRepoFileForm) {
} else {
ctx.Error(500, err.Error())
}
} else if models.IsErrCommitIDDoesNotMatch(err) {
} else if models.IsErrCommitIDDoesNotMatch(err) || models.IsErrMergePushOutOfDate(err) {
ctx.RenderWithErr(ctx.Tr("repo.editor.file_changed_while_deleting", ctx.Repo.RepoLink+"/compare/"+form.LastCommit+"..."+ctx.Repo.CommitID), tplDeleteFile, &form)
} else if models.IsErrPushRejected(err) {
errPushRej := err.(models.ErrPushRejected)
if len(errPushRej.Message) == 0 {
ctx.RenderWithErr(ctx.Tr("repo.editor.push_rejected_no_message"), tplDeleteFile, &form)
} else {
ctx.RenderWithErr(ctx.Tr("repo.editor.push_rejected", utils.SanitizeFlashErrorString(errPushRej.Message)), tplDeleteFile, &form)
}
} else {
ctx.ServerError("DeleteRepoFile", err)
}

26
routers/repo/pull.go
View File

@ -10,7 +10,6 @@ import (
"container/list"
"crypto/subtle"
"fmt"
"html"
"net/http"
"path"
"strings"
@ -25,6 +24,7 @@ import (
"code.gitea.io/gitea/modules/repofiles"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
"code.gitea.io/gitea/routers/utils"
"code.gitea.io/gitea/services/gitdiff"
pull_service "code.gitea.io/gitea/services/pull"
repo_service "code.gitea.io/gitea/services/repository"
@ -663,27 +663,18 @@ func MergePullRequest(ctx *context.Context, form auth.MergePullRequestForm) {
}
if err = pull_service.Merge(pr, ctx.User, ctx.Repo.GitRepo, models.MergeStyle(form.Do), message); err != nil {
sanitize := func(x string) string {
runes := []rune(x)
if len(runes) > 512 {
x = "..." + string(runes[len(runes)-512:])
}
return strings.Replace(html.EscapeString(x), "\n", "<br>", -1)
}
if models.IsErrInvalidMergeStyle(err) {
ctx.Flash.Error(ctx.Tr("repo.pulls.invalid_merge_option"))
ctx.Redirect(ctx.Repo.RepoLink + "/pulls/" + com.ToStr(pr.Index))
return
} else if models.IsErrMergeConflicts(err) {
conflictError := err.(models.ErrMergeConflicts)
ctx.Flash.Error(ctx.Tr("repo.pulls.merge_conflict", sanitize(conflictError.StdErr), sanitize(conflictError.StdOut)))
ctx.Flash.Error(ctx.Tr("repo.pulls.merge_conflict", utils.SanitizeFlashErrorString(conflictError.StdErr), utils.SanitizeFlashErrorString(conflictError.StdOut)))
ctx.Redirect(ctx.Repo.RepoLink + "/pulls/" + com.ToStr(pr.Index))
return
} else if models.IsErrRebaseConflicts(err) {
conflictError := err.(models.ErrRebaseConflicts)
ctx.Flash.Error(ctx.Tr("repo.pulls.rebase_conflict", sanitize(conflictError.CommitSHA), sanitize(conflictError.StdErr), sanitize(conflictError.StdOut)))
ctx.Flash.Error(ctx.Tr("repo.pulls.rebase_conflict", utils.SanitizeFlashErrorString(conflictError.CommitSHA), utils.SanitizeFlashErrorString(conflictError.StdErr), utils.SanitizeFlashErrorString(conflictError.StdOut)))
ctx.Redirect(ctx.Repo.RepoLink + "/pulls/" + com.ToStr(pr.Index))
return
} else if models.IsErrMergeUnrelatedHistories(err) {
@ -696,6 +687,17 @@ func MergePullRequest(ctx *context.Context, form auth.MergePullRequestForm) {
ctx.Flash.Error(ctx.Tr("repo.pulls.merge_out_of_date"))
ctx.Redirect(ctx.Repo.RepoLink + "/pulls/" + com.ToStr(pr.Index))
return
} else if models.IsErrPushRejected(err) {
log.Debug("MergePushRejected error: %v", err)
pushrejErr := err.(models.ErrPushRejected)
message := pushrejErr.Message
if len(message) == 0 {
ctx.Flash.Error(ctx.Tr("repo.pulls.push_rejected_no_message"))
} else {
ctx.Flash.Error(ctx.Tr("repo.pulls.push_rejected", utils.SanitizeFlashErrorString(pushrejErr.Message)))
}
ctx.Redirect(ctx.Repo.RepoLink + "/pulls/" + com.ToStr(pr.Index))
return
}
ctx.ServerError("Merge", err)
return

12
routers/utils/utils.go
View File

@ -5,6 +5,7 @@
package utils
import (
"html"
"strings"
)
@ -34,3 +35,14 @@ func IsValidSlackChannel(channelName string) bool {
return true
}
// SanitizeFlashErrorString will sanitize a flash error string
func SanitizeFlashErrorString(x string) string {
runes := []rune(x)
if len(runes) > 512 {
x = "..." + string(runes[len(runes)-512:])
}
return strings.Replace(html.EscapeString(x), "\n", "<br>", -1)
}

9
services/pull/merge.go
View File

@ -335,6 +335,15 @@ func Merge(pr *models.PullRequest, doer *models.User, baseGitRepo *git.Repositor
StdErr: errbuf.String(),
Err: err,
}
} else if strings.Contains(errbuf.String(), "! [remote rejected]") {
err := models.ErrPushRejected{
Style: mergeStyle,
StdOut: outbuf.String(),
StdErr: errbuf.String(),
Err: err,
}
err.GenerateMessage()
return err
}
return fmt.Errorf("git push: %s", errbuf.String())
}