gitea/routers/web/repo/cherry_pick.go

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// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package repo
import (
"bytes"
"errors"
"strings"
"code.gitea.io/gitea/models"
git_model "code.gitea.io/gitea/models/git"
"code.gitea.io/gitea/models/unit"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
"code.gitea.io/gitea/modules/web"
"code.gitea.io/gitea/services/context"
"code.gitea.io/gitea/services/forms"
"code.gitea.io/gitea/services/repository/files"
)
var tplCherryPick base.TplName = "repo/editor/cherry_pick"
// CherryPick handles cherrypick GETs
func CherryPick(ctx *context.Context) {
ctx.Data["SHA"] = ctx.Params(":sha")
cherryPickCommit, err := ctx.Repo.GitRepo.GetCommit(ctx.Params(":sha"))
if err != nil {
if git.IsErrNotExist(err) {
ctx.NotFound("Missing Commit", err)
return
}
ctx.ServerError("GetCommit", err)
return
}
if ctx.FormString("cherry-pick-type") == "revert" {
ctx.Data["CherryPickType"] = "revert"
ctx.Data["commit_summary"] = "revert " + ctx.Params(":sha")
ctx.Data["commit_message"] = "revert " + cherryPickCommit.Message()
} else {
ctx.Data["CherryPickType"] = "cherry-pick"
splits := strings.SplitN(cherryPickCommit.Message(), "\n", 2)
ctx.Data["commit_summary"] = splits[0]
ctx.Data["commit_message"] = splits[1]
}
canCommit := renderCommitRights(ctx)
ctx.Data["TreePath"] = ""
if canCommit {
ctx.Data["commit_choice"] = frmCommitChoiceDirect
} else {
ctx.Data["commit_choice"] = frmCommitChoiceNewBranch
}
ctx.Data["new_branch_name"] = GetUniquePatchBranchName(ctx)
ctx.Data["last_commit"] = ctx.Repo.CommitID
ctx.Data["LineWrapExtensions"] = strings.Join(setting.Repository.Editor.LineWrapExtensions, ",")
ctx.Data["BranchLink"] = ctx.Repo.RepoLink + "/src/" + ctx.Repo.BranchNameSubURL()
ctx.HTML(200, tplCherryPick)
}
// CherryPickPost handles cherrypick POSTs
func CherryPickPost(ctx *context.Context) {
form := web.GetForm(ctx).(*forms.CherryPickForm)
sha := ctx.Params(":sha")
ctx.Data["SHA"] = sha
if form.Revert {
ctx.Data["CherryPickType"] = "revert"
} else {
ctx.Data["CherryPickType"] = "cherry-pick"
}
canCommit := renderCommitRights(ctx)
branchName := ctx.Repo.BranchName
if form.CommitChoice == frmCommitChoiceNewBranch {
branchName = form.NewBranchName
}
ctx.Data["commit_summary"] = form.CommitSummary
ctx.Data["commit_message"] = form.CommitMessage
ctx.Data["commit_choice"] = form.CommitChoice
ctx.Data["new_branch_name"] = form.NewBranchName
ctx.Data["last_commit"] = ctx.Repo.CommitID
ctx.Data["LineWrapExtensions"] = strings.Join(setting.Repository.Editor.LineWrapExtensions, ",")
ctx.Data["BranchLink"] = ctx.Repo.RepoLink + "/src/" + ctx.Repo.BranchNameSubURL()
if ctx.HasError() {
ctx.HTML(200, tplCherryPick)
return
}
// Cannot commit to a an existing branch if user doesn't have rights
if branchName == ctx.Repo.BranchName && !canCommit {
ctx.Data["Err_NewBranchName"] = true
ctx.Data["commit_choice"] = frmCommitChoiceNewBranch
ctx.RenderWithErr(ctx.Tr("repo.editor.cannot_commit_to_protected_branch", branchName), tplCherryPick, &form)
return
}
message := strings.TrimSpace(form.CommitSummary)
if message == "" {
if form.Revert {
message = ctx.Locale.TrString("repo.commit.revert-header", sha)
} else {
message = ctx.Locale.TrString("repo.commit.cherry-pick-header", sha)
}
}
form.CommitMessage = strings.TrimSpace(form.CommitMessage)
if len(form.CommitMessage) > 0 {
message += "\n\n" + form.CommitMessage
}
opts := &files.ApplyDiffPatchOptions{
LastCommitID: form.LastCommit,
OldBranch: ctx.Repo.BranchName,
NewBranch: branchName,
Message: message,
}
// First lets try the simple plain read-tree -m approach
opts.Content = sha
if _, err := files.CherryPick(ctx, ctx.Repo.Repository, ctx.Doer, form.Revert, opts); err != nil {
if git_model.IsErrBranchAlreadyExists(err) {
// User has specified a branch that already exists
branchErr := err.(git_model.ErrBranchAlreadyExists)
ctx.Data["Err_NewBranchName"] = true
ctx.RenderWithErr(ctx.Tr("repo.editor.branch_already_exists", branchErr.BranchName), tplCherryPick, &form)
return
} else if models.IsErrCommitIDDoesNotMatch(err) {
ctx.RenderWithErr(ctx.Tr("repo.editor.file_changed_while_editing", ctx.Repo.RepoLink+"/compare/"+form.LastCommit+"..."+ctx.Repo.CommitID), tplPatchFile, &form)
return
}
// Drop through to the apply technique
buf := &bytes.Buffer{}
if form.Revert {
if err := git.GetReverseRawDiff(ctx, ctx.Repo.Repository.RepoPath(), sha, buf); err != nil {
if git.IsErrNotExist(err) {
ctx.NotFound("GetRawDiff", errors.New("commit "+ctx.Params(":sha")+" does not exist."))
return
}
ctx.ServerError("GetRawDiff", err)
return
}
} else {
if err := git.GetRawDiff(ctx.Repo.GitRepo, sha, git.RawDiffType("patch"), buf); err != nil {
if git.IsErrNotExist(err) {
ctx.NotFound("GetRawDiff", errors.New("commit "+ctx.Params(":sha")+" does not exist."))
return
}
ctx.ServerError("GetRawDiff", err)
return
}
}
opts.Content = buf.String()
ctx.Data["FileContent"] = opts.Content
if _, err := files.ApplyDiffPatch(ctx, ctx.Repo.Repository, ctx.Doer, opts); err != nil {
if git_model.IsErrBranchAlreadyExists(err) {
// User has specified a branch that already exists
branchErr := err.(git_model.ErrBranchAlreadyExists)
ctx.Data["Err_NewBranchName"] = true
ctx.RenderWithErr(ctx.Tr("repo.editor.branch_already_exists", branchErr.BranchName), tplCherryPick, &form)
return
} else if models.IsErrCommitIDDoesNotMatch(err) {
ctx.RenderWithErr(ctx.Tr("repo.editor.file_changed_while_editing", ctx.Repo.RepoLink+"/compare/"+form.LastCommit+"..."+ctx.Repo.CommitID), tplPatchFile, &form)
return
}
ctx.RenderWithErr(ctx.Tr("repo.editor.fail_to_apply_patch", err), tplPatchFile, &form)
return
}
}
if form.CommitChoice == frmCommitChoiceNewBranch && ctx.Repo.Repository.UnitEnabled(ctx, unit.TypePullRequests) {
ctx.Redirect(ctx.Repo.RepoLink + "/compare/" + util.PathEscapeSegments(ctx.Repo.BranchName) + "..." + util.PathEscapeSegments(form.NewBranchName))
} else {
ctx.Redirect(ctx.Repo.RepoLink + "/src/branch/" + util.PathEscapeSegments(branchName))
}
}