mirror of
https://github.com/zrepl/zrepl.git
synced 2024-12-01 04:45:27 +01:00
d7ede3f82c
While investigating https://github.com/zrepl/zrepl/issues/700
I checked in on `zrepl status` dependencies and found that
`cview`, which was/is a fork of tview, appears to be unmaintained.
We switched to it 4.5 years ago in a58ce74.
Checking now, `github.com/rivo/tview` seems to be somewhat maintained
again.
I also checked what k9s uses because that tool came to mind as a Go
terminal UI app.
It does use `tview`, but, a fork that has diverged substantially.
Maybe in another 4.5 years stuff the ecosystem has consolidated...
refs https://github.com/zrepl/zrepl/issues/700
344 lines
9.1 KiB
Go
344 lines
9.1 KiB
Go
package status
|
|
|
|
import (
|
|
"fmt"
|
|
"regexp"
|
|
"strings"
|
|
"sync"
|
|
"time"
|
|
|
|
"github.com/gdamore/tcell/v2"
|
|
"github.com/rivo/tview"
|
|
"github.com/zrepl/zrepl/internal/client/status/viewmodel"
|
|
)
|
|
|
|
func interactive(c Client, flag statusFlags) error {
|
|
|
|
// Set this so we don't overwrite the default terminal colors
|
|
// See https://github.com/rivo/tview/blob/master/styles.go
|
|
tview.Styles.PrimitiveBackgroundColor = tcell.ColorDefault
|
|
tview.Styles.ContrastBackgroundColor = tcell.ColorDefault
|
|
tview.Styles.PrimaryTextColor = tcell.ColorDefault
|
|
tview.Styles.BorderColor = tcell.ColorDefault
|
|
app := tview.NewApplication()
|
|
|
|
jobDetailSplit := tview.NewFlex()
|
|
jobMenu := tview.NewTreeView()
|
|
jobMenuRoot := tview.NewTreeNode("jobs")
|
|
jobMenuRoot.SetSelectable(true)
|
|
jobMenu.SetRoot(jobMenuRoot)
|
|
jobMenu.SetCurrentNode(jobMenuRoot)
|
|
jobTextDetail := tview.NewTextView()
|
|
jobTextDetail.SetWrap(false)
|
|
|
|
jobMenu.SetBorder(true)
|
|
jobTextDetail.SetBorder(true)
|
|
|
|
toolbarSplit := tview.NewFlex()
|
|
toolbarSplit.SetDirection(tview.FlexRow)
|
|
inputBarContainer := tview.NewFlex()
|
|
fsFilterInput := tview.NewInputField()
|
|
fsFilterInput.SetBorder(false)
|
|
fsFilterInput.SetFieldBackgroundColor(tcell.ColorDefault)
|
|
inputBarLabel := tview.NewTextView()
|
|
inputBarLabel.SetText("[::b]FILTER ")
|
|
inputBarLabel.SetDynamicColors(true)
|
|
inputBarContainer.AddItem(inputBarLabel, 7, 1, false)
|
|
inputBarContainer.AddItem(fsFilterInput, 0, 10, false)
|
|
toolbarSplit.AddItem(inputBarContainer, 1, 0, false)
|
|
toolbarSplit.AddItem(jobDetailSplit, 0, 10, false)
|
|
|
|
bottombar := tview.NewFlex()
|
|
bottombar.SetDirection(tview.FlexColumn)
|
|
bottombarDateView := tview.NewTextView()
|
|
bottombar.AddItem(bottombarDateView, len(time.Now().String()), 0, false)
|
|
bottomBarStatus := tview.NewTextView()
|
|
bottomBarStatus.SetDynamicColors(true)
|
|
bottomBarStatus.SetTextAlign(tview.AlignRight)
|
|
bottombar.AddItem(bottomBarStatus, 0, 10, false)
|
|
toolbarSplit.AddItem(bottombar, 1, 0, false)
|
|
|
|
tabbableWithJobMenu := []tview.Primitive{jobMenu, jobTextDetail, fsFilterInput}
|
|
tabbableWithoutJobMenu := []tview.Primitive{jobTextDetail, fsFilterInput}
|
|
var tabbable []tview.Primitive
|
|
tabbableActiveIndex := 0
|
|
tabbableRedraw := func() {
|
|
if len(tabbable) == 0 {
|
|
app.SetFocus(nil)
|
|
return
|
|
}
|
|
if tabbableActiveIndex >= len(tabbable) {
|
|
app.SetFocus(tabbable[0])
|
|
return
|
|
}
|
|
app.SetFocus(tabbable[tabbableActiveIndex])
|
|
}
|
|
tabbableCycle := func() {
|
|
if len(tabbable) == 0 {
|
|
return
|
|
}
|
|
tabbableActiveIndex = (tabbableActiveIndex + 1) % len(tabbable)
|
|
app.SetFocus(tabbable[tabbableActiveIndex])
|
|
tabbableRedraw()
|
|
}
|
|
|
|
jobMenuVisisble := false
|
|
reconfigureJobDetailSplit := func(setJobMenuVisible bool) {
|
|
if jobMenuVisisble == setJobMenuVisible {
|
|
return
|
|
}
|
|
jobMenuVisisble = setJobMenuVisible
|
|
if setJobMenuVisible {
|
|
jobDetailSplit.RemoveItem(jobTextDetail)
|
|
jobDetailSplit.AddItem(jobMenu, 0, 1, true)
|
|
jobDetailSplit.AddItem(jobTextDetail, 0, 5, false)
|
|
tabbable = tabbableWithJobMenu
|
|
} else {
|
|
jobDetailSplit.RemoveItem(jobMenu)
|
|
tabbable = tabbableWithoutJobMenu
|
|
}
|
|
tabbableRedraw()
|
|
}
|
|
|
|
showModal := func(m *tview.Modal, modalDoneFunc func(idx int, label string)) {
|
|
preModalFocus := app.GetFocus()
|
|
m.SetDoneFunc(func(idx int, label string) {
|
|
if modalDoneFunc != nil {
|
|
modalDoneFunc(idx, label)
|
|
}
|
|
app.SetRoot(toolbarSplit, true)
|
|
app.SetFocus(preModalFocus)
|
|
})
|
|
app.SetRoot(m, true)
|
|
}
|
|
|
|
app.SetRoot(toolbarSplit, true)
|
|
// initial focus
|
|
tabbableActiveIndex = len(tabbable)
|
|
tabbableCycle()
|
|
reconfigureJobDetailSplit(true)
|
|
|
|
m := viewmodel.New()
|
|
params := &viewmodel.Params{
|
|
Report: nil,
|
|
SelectedJob: nil,
|
|
FSFilter: func(_ string) bool { return true },
|
|
DetailViewWidth: 100,
|
|
DetailViewWrap: false,
|
|
ShortKeybindingOverview: "[::b]Q[::-] quit [::b]<TAB>[::-] switch panes [::b]W[::-] wrap lines [::b]Shift+M[::-] toggle navbar [::b]Shift+S[::-] signal job [::b]</>[::-] filter filesystems",
|
|
}
|
|
paramsMtx := &sync.Mutex{}
|
|
var redraw func()
|
|
viewmodelupdate := func(cb func(*viewmodel.Params)) {
|
|
paramsMtx.Lock()
|
|
defer paramsMtx.Unlock()
|
|
cb(params)
|
|
m.Update(*params)
|
|
}
|
|
redraw = func() {
|
|
jobs := m.Jobs()
|
|
if flag.Job != "" {
|
|
job_found := false
|
|
for _, job := range jobs {
|
|
if strings.Compare(flag.Job, job.Name()) == 0 {
|
|
jobs = []*viewmodel.Job{job}
|
|
job_found = true
|
|
break
|
|
}
|
|
}
|
|
if !job_found {
|
|
jobs = nil
|
|
}
|
|
}
|
|
redrawJobsList := false
|
|
var selectedJobN *tview.TreeNode
|
|
if len(jobMenuRoot.GetChildren()) == len(jobs) {
|
|
for i, jobN := range jobMenuRoot.GetChildren() {
|
|
if jobN.GetReference().(*viewmodel.Job) != jobs[i] {
|
|
redrawJobsList = true
|
|
break
|
|
}
|
|
if jobN.GetReference().(*viewmodel.Job) == m.SelectedJob() {
|
|
selectedJobN = jobN
|
|
}
|
|
}
|
|
} else {
|
|
redrawJobsList = true
|
|
}
|
|
if redrawJobsList {
|
|
selectedTextStyle := tcell.StyleDefault.Bold(true)
|
|
selectedJobN = nil
|
|
children := make([]*tview.TreeNode, len(jobs))
|
|
for i := range jobs {
|
|
jobN := tview.NewTreeNode(jobs[i].JobTreeTitle())
|
|
jobN.SetReference(jobs[i])
|
|
jobN.SetSelectable(true)
|
|
jobN.SetSelectedTextStyle(selectedTextStyle)
|
|
children[i] = jobN
|
|
jobN.SetSelectedFunc(func() {
|
|
viewmodelupdate(func(p *viewmodel.Params) {
|
|
p.SelectedJob = jobN.GetReference().(*viewmodel.Job)
|
|
})
|
|
})
|
|
if jobs[i] == m.SelectedJob() {
|
|
selectedJobN = jobN
|
|
}
|
|
}
|
|
jobMenuRoot.SetChildren(children)
|
|
jobMenuRoot.SetSelectedTextStyle(selectedTextStyle)
|
|
}
|
|
|
|
if selectedJobN != nil && jobMenu.GetCurrentNode() != selectedJobN {
|
|
jobMenu.SetCurrentNode(selectedJobN)
|
|
} else if selectedJobN == nil {
|
|
// select something, otherwise selection breaks (likely bug in tview)
|
|
jobMenu.SetCurrentNode(jobMenuRoot)
|
|
}
|
|
|
|
if selJ := m.SelectedJob(); selJ != nil {
|
|
jobTextDetail.SetText(selJ.FullDescription())
|
|
} else {
|
|
jobTextDetail.SetText("please select a job")
|
|
}
|
|
|
|
bottombardatestring := m.DateString()
|
|
bottombarDateView.SetText(bottombardatestring)
|
|
bottombar.ResizeItem(bottombarDateView, len(bottombardatestring), 0)
|
|
|
|
bottomBarStatus.SetText(m.BottomBarStatus())
|
|
}
|
|
|
|
go func() {
|
|
defer func() {
|
|
if err := recover(); err != nil {
|
|
app.Suspend(func() {
|
|
panic(err)
|
|
})
|
|
}
|
|
}()
|
|
for {
|
|
st, err := c.Status()
|
|
viewmodelupdate(func(p *viewmodel.Params) {
|
|
p.Report = st.Jobs
|
|
p.ReportFetchError = err
|
|
})
|
|
app.QueueUpdateDraw(redraw)
|
|
|
|
time.Sleep(flag.Delay)
|
|
}
|
|
}()
|
|
|
|
jobMenu.SetChangedFunc(func(jobN *tview.TreeNode) {
|
|
viewmodelupdate(func(p *viewmodel.Params) {
|
|
p.SelectedJob, _ = jobN.GetReference().(*viewmodel.Job)
|
|
})
|
|
redraw()
|
|
jobTextDetail.ScrollToBeginning()
|
|
})
|
|
jobMenu.SetSelectedFunc(func(jobN *tview.TreeNode) {
|
|
app.SetFocus(jobTextDetail)
|
|
})
|
|
|
|
app.SetBeforeDrawFunc(func(screen tcell.Screen) bool {
|
|
viewmodelupdate(func(p *viewmodel.Params) {
|
|
_, _, p.DetailViewWidth, _ = jobTextDetail.GetInnerRect()
|
|
})
|
|
return false
|
|
})
|
|
|
|
app.SetInputCapture(func(e *tcell.EventKey) *tcell.EventKey {
|
|
if e.Key() == tcell.KeyTab {
|
|
// TODO: only if there's no modal showing (long-time bug in zrepl status)
|
|
tabbableCycle()
|
|
return nil
|
|
}
|
|
|
|
if e.Key() == tcell.KeyRune && app.GetFocus() == fsFilterInput {
|
|
return e
|
|
}
|
|
|
|
if e.Key() == tcell.KeyRune && e.Rune() == '/' {
|
|
if app.GetFocus() != fsFilterInput {
|
|
app.SetFocus(fsFilterInput)
|
|
}
|
|
return e
|
|
}
|
|
|
|
if e.Key() == tcell.KeyRune && e.Rune() == 'M' {
|
|
reconfigureJobDetailSplit(!jobMenuVisisble)
|
|
return nil
|
|
}
|
|
|
|
if e.Key() == tcell.KeyRune && e.Rune() == 'q' {
|
|
app.Stop()
|
|
}
|
|
|
|
if e.Key() == tcell.KeyRune && e.Rune() == 'S' {
|
|
job, ok := jobMenu.GetCurrentNode().GetReference().(*viewmodel.Job)
|
|
if !ok {
|
|
return nil
|
|
}
|
|
signals := []string{"wakeup", "reset"}
|
|
clientFuncs := []func(job string) error{c.SignalWakeup, c.SignalReset}
|
|
sigMod := tview.NewModal()
|
|
sigMod.SetBorder(true)
|
|
sigMod.SetButtonActivatedStyle(tcell.StyleDefault.Bold(true).Reverse(true))
|
|
sigMod.AddButtons(signals)
|
|
sigMod.SetText(fmt.Sprintf("Send a signal to job %q", job.Name()))
|
|
showModal(sigMod, func(idx int, _ string) {
|
|
go func() {
|
|
if idx == -1 {
|
|
return
|
|
}
|
|
err := clientFuncs[idx](job.Name())
|
|
if err != nil {
|
|
app.QueueUpdate(func() {
|
|
me := tview.NewModal()
|
|
me.SetText(fmt.Sprintf("signal error: %s", err))
|
|
me.AddButtons([]string{"Close"})
|
|
showModal(me, nil)
|
|
})
|
|
}
|
|
}()
|
|
})
|
|
}
|
|
|
|
return e
|
|
})
|
|
|
|
fsFilterInput.SetChangedFunc(func(searchterm string) {
|
|
viewmodelupdate(func(p *viewmodel.Params) {
|
|
p.FSFilter = func(fs string) bool {
|
|
r, err := regexp.Compile(searchterm)
|
|
if err != nil {
|
|
return true
|
|
}
|
|
return r.MatchString(fs)
|
|
}
|
|
})
|
|
redraw()
|
|
jobTextDetail.ScrollToBeginning()
|
|
})
|
|
fsFilterInput.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
|
|
if event.Key() == tcell.KeyEnter {
|
|
app.SetFocus(jobTextDetail)
|
|
return nil
|
|
}
|
|
return event
|
|
})
|
|
|
|
jobTextDetail.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
|
|
if event.Key() == tcell.KeyRune && event.Rune() == 'w' {
|
|
// toggle wrapping
|
|
viewmodelupdate(func(p *viewmodel.Params) {
|
|
p.DetailViewWrap = !p.DetailViewWrap
|
|
})
|
|
redraw()
|
|
return nil
|
|
}
|
|
return event
|
|
})
|
|
|
|
return app.Run()
|
|
}
|