Add restore (x): make a repository exactly what git records

Restores the selection and all submodules below it recursively, asking
only if work would be lost. May clone/fetch missing objects (D23).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
2026-10-22 12:38:29 +02:00
co-authored by Claude Opus 5.5
parent a328d3cc3a
commit 7980d3356a
16 changed files with 1260 additions and 118 deletions
+30 -5
View File
@@ -56,6 +56,9 @@ type Model struct {
// exactly then. The input is focused while typing and blurred after enter.
filtering bool
restore *restoreState // the restore in progress, nil if none
notice string // an error to show above the footer until the next key
width, height int
showDetail bool
}
@@ -156,7 +159,7 @@ func (m *Model) startFetch() tea.Cmd {
// busy reports whether something shows a spinner.
func (m Model) busy() bool {
if m.repo == nil || m.fetch.Running {
if m.repo == nil || m.fetch.Running || (m.restore != nil && m.restore.phase != restoreAsking) {
return true
}
loading := m.repo.Root != nil && m.repo.Root.Status == nil && m.repo.Root.Err == nil
@@ -202,6 +205,12 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
case changeMsg:
return m.changed(msg)
case lossMsg:
return m.lossChecked(msg)
case restoreDoneMsg:
return m.restoreDone(msg)
case fetchDoneMsg:
m.fetch.Done++
if msg.err != nil {
@@ -322,6 +331,13 @@ func (m Model) changed(msg changeMsg) (tea.Model, tea.Cmd) {
func (m Model) handleKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
k := m.keys
if m.restore != nil && m.restore.phase == restoreAsking {
return m.answerRestore(msg)
}
if m.notice != "" {
m.notice = ""
m.layout()
}
if m.filter.Focused() {
return m.typeFilter(msg)
}
@@ -377,6 +393,8 @@ func (m Model) handleKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
m.filtering = true
m.layout()
return m, m.filter.Focus()
case key.Matches(msg, k.Restore):
return m.startRestore()
case key.Matches(msg, k.Issues):
m.tree.SetProblemsOnly(!m.tree.ProblemsOnly())
m.layout()
@@ -438,9 +456,12 @@ func (m Model) filterView() string {
return lipgloss.NewStyle().Width(m.width).Padding(0, 1).Render(in + strings.Repeat(" ", gap) + hint)
}
// extraLine reports whether a line above the footer is shown: the filter, or
// the notice that only problems are shown.
func (m Model) extraLine() bool { return m.filtering || m.tree.ProblemsOnly() }
// extraLine reports whether a line above the footer is shown: a restore in
// progress, a failure, the filter, or the notice that only problems are
// shown.
func (m Model) extraLine() bool {
return m.filtering || m.tree.ProblemsOnly() || m.restore != nil || m.notice != ""
}
// problemsView is the line above the footer while only problems are shown, so
// a short list is not mistaken for a healthy repository.
@@ -512,7 +533,11 @@ func (m Model) View() string {
head := header.View(m.theme, m.repo, m.fetch, m.spinner.View(), m.width, m.tree.RootSelected())
parts := []string{zone.Mark(m.tree.RootZone(), head), body}
if m.filtering {
if m.restore != nil {
parts = append(parts, m.restoreView())
} else if m.notice != "" {
parts = append(parts, m.noticeView())
} else if m.filtering {
parts = append(parts, m.filterView())
} else if m.tree.ProblemsOnly() {
parts = append(parts, m.problemsView())
+4 -3
View File
@@ -7,7 +7,7 @@ type keyMap struct {
CollapseAll, ExpandAll key.Binding
Home, End, PageUp, PageDown key.Binding
Fetch, Reload, Filter, Issues key.Binding
Copy, Help, Quit key.Binding
Copy, Restore, Help, Quit key.Binding
}
func defaultKeys() keyMap {
@@ -27,6 +27,7 @@ func defaultKeys() keyMap {
Reload: key.NewBinding(key.WithKeys("r"), key.WithHelp("r", "reload")),
Filter: key.NewBinding(key.WithKeys("/"), key.WithHelp("/", "filter")),
Issues: key.NewBinding(key.WithKeys("!"), key.WithHelp("!", "problems only")),
Restore: key.NewBinding(key.WithKeys("x"), key.WithHelp("x", "restore")),
Copy: key.NewBinding(key.WithKeys("c"), key.WithHelp("c", "copy path")),
Help: key.NewBinding(key.WithKeys("?"), key.WithHelp("?", "help")),
Quit: key.NewBinding(key.WithKeys("q", "ctrl+c"), key.WithHelp("q", "quit")),
@@ -43,7 +44,7 @@ func (k keyMap) Navigation() []key.Binding {
// Submodule returns the bindings that act on the selected submodule. They
// are shown in the detail pane, or in the footer if the pane can't show them.
func (k keyMap) Submodule() []key.Binding { return []key.Binding{k.Copy} }
func (k keyMap) Submodule() []key.Binding { return []key.Binding{k.Copy, k.Restore} }
// Global returns the bindings that don't depend on the selection.
func (k keyMap) Global() []key.Binding { return []key.Binding{k.Help, k.Quit} }
@@ -57,7 +58,7 @@ func (k keyMap) FullHelp() [][]key.Binding {
{k.Up, k.Down, k.Left, k.Right, k.Toggle},
{k.CollapseAll, k.ExpandAll},
{k.Home, k.End, k.PageUp, k.PageDown},
{k.Copy},
{k.Copy, k.Restore},
{k.Fetch, k.Reload, k.Filter, k.Issues},
{k.Help, k.Quit},
}
+206
View File
@@ -0,0 +1,206 @@
package tui
import (
"fmt"
"strings"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
"github.com/charmbracelet/x/ansi"
"submarine/internal/submodule"
"submarine/internal/tui/theme"
)
type restorePhase int
const (
restoreChecking restorePhase = iota // reading what would be lost
restoreAsking // waiting for y / n
restoreRunning
)
// restoreState is the restore in progress; only one runs at a time.
type restoreState struct {
path, name string // name is how the footer calls it
phase restorePhase
loss submodule.Loss
}
// lossMsg is the result of the check before a restore.
type lossMsg struct {
path string
loss submodule.Loss
err error
}
type restoreDoneMsg struct {
path string
err error
}
// startRestore checks what restoring the selection would discard. If nothing
// would be lost it restores at once, else it asks first.
func (m Model) startRestore() (tea.Model, tea.Cmd) {
s := m.tree.Selected()
r, ok := m.provider.(submodule.Restorer)
var flash string
switch {
case s == nil:
return m, nil
case !ok:
flash = "this data source can't restore"
case m.restore != nil:
flash = "wait for the restore of " + m.restore.name + " to finish"
}
if flash != "" {
cmd := m.footer.Flash(flash)
m.layout()
return m, cmd
}
m.restore = &restoreState{path: s.Path, name: restoreName(s)}
m.layout()
ctx, path := m.ctx, s.Path
check := func() tea.Msg {
loss, err := r.RestoreLoss(ctx, path)
return lossMsg{path, loss, err}
}
return m, tea.Batch(check, m.tick())
}
// lossChecked reacts to the check: restore, or ask.
func (m Model) lossChecked(msg lossMsg) (tea.Model, tea.Cmd) {
if m.restore == nil || m.restore.path != msg.path || m.restore.phase != restoreChecking {
return m, nil
}
if msg.err != nil {
m.restore = nil
m.notice = "can't check " + restoreName(m.byPath[msg.path]) + ": " + msg.err.Error()
m.layout()
return m, nil
}
m.restore.loss = msg.loss
if msg.loss.Empty() {
return m.runRestore()
}
m.restore.phase = restoreAsking
m.layout()
return m, nil
}
// answerRestore handles a key while the restore waits for its answer: y
// restores, anything else cancels.
func (m Model) answerRestore(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
switch {
case msg.Type == tea.KeyCtrlC:
return m, tea.Quit
case msg.String() == "y":
return m.runRestore()
}
m.restore = nil
m.layout()
return m, nil
}
func (m Model) runRestore() (tea.Model, tea.Cmd) {
m.restore.phase = restoreRunning
m.layout()
r := m.provider.(submodule.Restorer)
ctx, path := m.ctx, m.restore.path
run := func() tea.Msg { return restoreDoneMsg{path, r.Restore(ctx, path)} }
return m, tea.Batch(run, m.tick())
}
// restoreDone shows the result and reloads everything: the structure may have
// changed.
func (m Model) restoreDone(msg restoreDoneMsg) (tea.Model, tea.Cmd) {
name := "the superproject"
if m.restore != nil {
name = m.restore.name
}
m.restore = nil
var cmds []tea.Cmd
if msg.err != nil {
m.notice = "restore of " + name + " failed: " + msg.err.Error()
} else {
cmds = append(cmds, m.footer.Flash("restored "+name))
}
cmds = append(cmds, m.reloadTree(true))
m.layout()
return m, tea.Batch(cmds...)
}
func restoreName(s *submodule.Submodule) string {
if s == nil || s.IsRoot() {
return "the superproject"
}
return s.Path
}
// restoreView is the line above the footer while a restore is in progress.
func (m Model) restoreView() string {
r := m.restore
left, right := "", ""
switch r.phase {
case restoreChecking:
left = theme.Fg(m.theme.Primary).Render(m.spinner.View()) + " " + theme.Fg(m.theme.Muted).Render("checking "+r.name+"…")
case restoreRunning:
left = theme.Fg(m.theme.Primary).Render(m.spinner.View()) + " " + theme.Fg(m.theme.Warn).Render("restoring "+r.name+"…")
case restoreAsking:
left = theme.Fg(m.theme.Warn).Render("Restore "+r.name+"?") + " " +
theme.Fg(m.theme.Danger).Render("Discards "+lossText(r.loss)+".")
right = theme.Fg(m.theme.Text).Bold(true).Render("y") + theme.Fg(m.theme.Muted).Render(" restore · ") +
theme.Fg(m.theme.Text).Bold(true).Render("n") + theme.Fg(m.theme.Muted).Render(" cancel")
}
return m.line(left, right)
}
// line lays out one line above the footer: left, right-aligned right. The
// left part is cut if both don't fit.
func (m Model) line(left, right string) string {
w := m.width - 2
if right != "" {
left = ansi.Truncate(left, max(w-lipgloss.Width(right)-2, 1), "…")
}
gap := max(w-lipgloss.Width(left)-lipgloss.Width(right), 1)
return lipgloss.NewStyle().Width(m.width).Padding(0, 1).Render(left + strings.Repeat(" ", gap) + right)
}
// noticeView is the line above the footer after a restore failed.
func (m Model) noticeView() string {
return m.line(theme.Fg(m.theme.Danger).Render(m.notice), "")
}
// lossText words what a restore discards, e.g. "7 changed files in 3
// repositories, 2 commits on no branch, 1 untracked repository".
func lossText(l submodule.Loss) string {
var parts []string
if l.Files > 0 {
s := plural(l.Files, "changed file", "changed files")
if l.Modules > 1 {
s += fmt.Sprintf(" in %d repositories", l.Modules)
}
parts = append(parts, s)
}
if l.Operations > 0 {
parts = append(parts, plural(l.Operations, "operation in progress", "operations in progress"))
}
if l.Commits > 0 {
parts = append(parts, plural(l.Commits, "commit on no branch", "commits on no branch"))
}
if l.Repositories > 0 {
parts = append(parts, plural(l.Repositories, "untracked repository", "untracked repositories"))
}
if l.Unknown > 0 {
parts = append(parts, plural(l.Unknown, "repository of unknown state", "repositories of unknown state"))
}
return strings.Join(parts, ", ")
}
func plural(n int, one, many string) string {
if n == 1 {
return "1 " + one
}
return fmt.Sprintf("%d %s", n, many)
}
+153
View File
@@ -0,0 +1,153 @@
package tui
import (
"context"
"os"
"testing"
tea "github.com/charmbracelet/bubbletea"
zone "github.com/lrstanley/bubblezone"
"submarine/internal/submodule"
"submarine/internal/submodule/mock"
)
func TestMain(m *testing.M) {
zone.NewGlobal()
os.Exit(m.Run())
}
func TestLossText(t *testing.T) {
cases := []struct {
in submodule.Loss
want string
}{
{submodule.Loss{Files: 1, Modules: 1}, "1 changed file"},
{submodule.Loss{Files: 7, Modules: 3, Commits: 2, Repositories: 1}, "7 changed files in 3 repositories, 2 commits on no branch, 1 untracked repository"},
{submodule.Loss{Operations: 1, Modules: 1, Unknown: 2}, "1 operation in progress, 2 repositories of unknown state"},
}
for _, c := range cases {
if got := lossText(c.in); got != c.want {
t.Errorf("lossText(%+v) = %q, want %q", c.in, got, c.want)
}
}
}
// fakeRestorer is the mock data with a restore that records its calls.
type fakeRestorer struct {
submodule.Provider
loss submodule.Loss
restored []string
}
func (f *fakeRestorer) RestoreLoss(context.Context, string) (submodule.Loss, error) {
return f.loss, nil
}
func (f *fakeRestorer) Restore(_ context.Context, path string) error {
f.restored = append(f.restored, path)
return nil
}
// run executes a command, flattening batches, and returns the messages.
func run(cmd tea.Cmd) []tea.Msg {
if cmd == nil {
return nil
}
msg := cmd()
if b, ok := msg.(tea.BatchMsg); ok {
var out []tea.Msg
for _, c := range b {
if c != nil {
out = append(out, run(c)...)
}
}
return out
}
return []tea.Msg{msg}
}
func press(m tea.Model, k string) (tea.Model, tea.Cmd) {
return m.Update(tea.KeyMsg{Type: tea.KeyRunes, Runes: []rune(k)})
}
// newRestoreModel returns a model with the mock tree loaded.
func newRestoreModel(t *testing.T, loss submodule.Loss) (tea.Model, *fakeRestorer) {
t.Helper()
f := &fakeRestorer{Provider: mock.New(), loss: loss}
var m tea.Model = New(context.Background(), f)
m, _ = m.Update(tea.WindowSizeMsg{Width: 120, Height: 30})
repo, err := f.Tree(context.Background())
if err != nil {
t.Fatal(err)
}
m, _ = m.Update(treeLoadedMsg{repo: repo})
return m, f
}
// feed delivers the messages of cmd to m, once.
func feed(m tea.Model, cmd tea.Cmd) tea.Model {
for _, msg := range run(cmd) {
switch msg.(type) {
case lossMsg, restoreDoneMsg:
m, _ = m.Update(msg)
}
}
return m
}
func TestRestoreWithoutLossRunsAtOnce(t *testing.T) {
m, f := newRestoreModel(t, submodule.Loss{})
m, cmd := press(m, "x")
var next tea.Cmd
for _, msg := range run(cmd) {
if l, ok := msg.(lossMsg); ok {
m, next = m.Update(l)
}
}
m = feed(m, next)
if len(f.restored) != 1 || f.restored[0] != "" {
t.Fatalf("restored %q, want the superproject once", f.restored)
}
if m.(Model).restore != nil {
t.Error("restore still in progress")
}
}
func TestRestoreAsksWhenSomethingIsLost(t *testing.T) {
m, f := newRestoreModel(t, submodule.Loss{Files: 3, Modules: 1})
m, cmd := press(m, "x")
var next tea.Cmd
for _, msg := range run(cmd) {
if l, ok := msg.(lossMsg); ok {
m, next = m.Update(l)
}
}
if next != nil || m.(Model).restore == nil || m.(Model).restore.phase != restoreAsking {
t.Fatalf("want a question, got %+v", m.(Model).restore)
}
// any other key cancels
c, _ := press(m, "n")
if c.(Model).restore != nil || len(f.restored) != 0 {
t.Fatal("n must cancel without restoring")
}
// y restores
m, cmd = press(m, "y")
m = feed(m, cmd)
if len(f.restored) != 1 {
t.Fatalf("restored %q", f.restored)
}
}
func TestRestoreWithoutRestorerSaysSo(t *testing.T) {
var m tea.Model = New(context.Background(), mock.New())
m, _ = m.Update(tea.WindowSizeMsg{Width: 120, Height: 30})
repo, _ := mock.New().Tree(context.Background())
m, _ = m.Update(treeLoadedMsg{repo: repo})
m, _ = press(m, "x")
if m.(Model).restore != nil {
t.Fatal("the mock can't restore")
}
}