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lazygit/pkg/gui/controllers/helpers/cherry_pick_helper.go
Stefan Haller a642395e9f Allow cherry-picking commits during a rebase
This can be useful when you know that a cherry-picked commit would conflict at
the tip of your branch, but doesn't at the beginning of the branch (or
somewhere in the middle). In that case you want to be able to edit the commit
before where you want to insert the cherry-picked commits, and then paste to
insert them into the todo list at that point.
2023-09-18 10:50:19 +02:00

138 lines
3.8 KiB
Go

package helpers
import (
"github.com/jesseduffield/gocui"
"github.com/jesseduffield/lazygit/pkg/commands/models"
"github.com/jesseduffield/lazygit/pkg/gui/modes/cherrypicking"
"github.com/jesseduffield/lazygit/pkg/gui/types"
)
type CherryPickHelper struct {
c *HelperCommon
rebaseHelper *MergeAndRebaseHelper
}
// I'm using the analogy of copy+paste in the terminology here because it's intuitively what's going on,
// even if in truth we're running git cherry-pick
func NewCherryPickHelper(
c *HelperCommon,
rebaseHelper *MergeAndRebaseHelper,
) *CherryPickHelper {
return &CherryPickHelper{
c: c,
rebaseHelper: rebaseHelper,
}
}
func (self *CherryPickHelper) getData() *cherrypicking.CherryPicking {
return self.c.Modes().CherryPicking
}
func (self *CherryPickHelper) Copy(commit *models.Commit, commitsList []*models.Commit, context types.Context) error {
if err := self.resetIfNecessary(context); err != nil {
return err
}
// we will un-copy it if it's already copied
if self.getData().SelectedShaSet().Includes(commit.Sha) {
self.getData().Remove(commit, commitsList)
} else {
self.getData().Add(commit, commitsList)
}
return self.rerender()
}
func (self *CherryPickHelper) CopyRange(selectedIndex int, commitsList []*models.Commit, context types.Context) error {
if err := self.resetIfNecessary(context); err != nil {
return err
}
commitSet := self.getData().SelectedShaSet()
// find the last commit that is copied that's above our position
// if there are none, startIndex = 0
startIndex := 0
for index, commit := range commitsList[0:selectedIndex] {
if commitSet.Includes(commit.Sha) {
startIndex = index
}
}
for index := startIndex; index <= selectedIndex; index++ {
commit := commitsList[index]
self.getData().Add(commit, commitsList)
}
return self.rerender()
}
// HandlePasteCommits begins a cherry-pick rebase with the commits the user has copied.
// Only to be called from the branch commits controller
func (self *CherryPickHelper) Paste() error {
return self.c.Confirm(types.ConfirmOpts{
Title: self.c.Tr.CherryPick,
Prompt: self.c.Tr.SureCherryPick,
HandleConfirm: func() error {
isInRebase, err := self.c.Git().Status.IsInInteractiveRebase()
if err != nil {
return err
}
if isInRebase {
if err := self.c.Git().Rebase.CherryPickCommitsDuringRebase(self.getData().CherryPickedCommits); err != nil {
return err
}
return self.c.Refresh(types.RefreshOptions{
Mode: types.SYNC, Scope: []types.RefreshableView{types.REBASE_COMMITS},
})
}
return self.c.WithWaitingStatus(self.c.Tr.CherryPickingStatus, func(gocui.Task) error {
self.c.LogAction(self.c.Tr.Actions.CherryPick)
err := self.c.Git().Rebase.CherryPickCommits(self.getData().CherryPickedCommits)
return self.rebaseHelper.CheckMergeOrRebase(err)
})
},
})
}
func (self *CherryPickHelper) CanPaste() bool {
return self.getData().Active()
}
func (self *CherryPickHelper) Reset() error {
self.getData().ContextKey = ""
self.getData().CherryPickedCommits = nil
return self.rerender()
}
// you can only copy from one context at a time, because the order and position of commits matter
func (self *CherryPickHelper) resetIfNecessary(context types.Context) error {
oldContextKey := types.ContextKey(self.getData().ContextKey)
if oldContextKey != context.GetKey() {
// need to reset the cherry picking mode
self.getData().ContextKey = string(context.GetKey())
self.getData().CherryPickedCommits = make([]*models.Commit, 0)
}
return nil
}
func (self *CherryPickHelper) rerender() error {
for _, context := range []types.Context{
self.c.Contexts().LocalCommits,
self.c.Contexts().ReflogCommits,
self.c.Contexts().SubCommits,
} {
if err := self.c.PostRefreshUpdate(context); err != nil {
return err
}
}
return nil
}