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Merge pull request #5681 from heaths/issue5679

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Use alternate screen buffer for watching runs
This commit is contained in:
Nate Smith 2022-07-14 15:03:43 -07:00 • committed by GitHub
commit 954689ea9f
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GPG key ID: 4AEE18F83AFDEB23
7 changed files with 164 additions and 123 deletions
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55
pkg/cmd/pr/checks/checks.go
View file

@ -2,11 +2,10 @@ package checks
import (
"fmt"
"io"
"runtime"
"time"
"github.com/MakeNowJust/heredoc"
"github.com/cli/cli/v2/api"
"github.com/cli/cli/v2/internal/ghrepo"
"github.com/cli/cli/v2/pkg/cmd/pr/shared"
"github.com/cli/cli/v2/pkg/cmdutil"
@ -131,33 +130,39 @@ func checksRun(opts *ChecksOptions) error {
var checks []check
var counts checkCounts
if opts.Watch {
opts.IO.StartAlternateScreenBuffer()
}
// Do not return err until we can StopAlternateScreenBuffer()
var err error
for {
findOptions := shared.FindOptions{
Selector: opts.SelectorArg,
Fields: []string{"number", "headRefName", "statusCheckRollup"},
}
pr, _, err := opts.Finder.Find(findOptions)
var pr *api.PullRequest
pr, _, err = opts.Finder.Find(findOptions)
if err != nil {
return err
break
}
checks, counts, err = aggregateChecks(pr)
if err != nil {
return err
break
}
if opts.Watch {
refreshScreen(opts.IO.Out)
if counts.Pending != 0 {
cs := opts.IO.ColorScheme()
fmt.Fprintln(opts.IO.Out, cs.Boldf("Refreshing checks status every %v seconds. Press Ctrl+C to quit.\n", opts.Interval.Seconds()))
}
if counts.Pending != 0 && opts.Watch {
opts.IO.RefreshScreen()
cs := opts.IO.ColorScheme()
fmt.Fprintln(opts.IO.Out, cs.Boldf("Refreshing checks status every %v seconds. Press Ctrl+C to quit.\n", opts.Interval.Seconds()))
}
printSummary(opts.IO, counts)
err = printTable(opts.IO, checks)
if err != nil {
return err
break
}
if counts.Pending == 0 || !opts.Watch {
@ -167,21 +172,23 @@ func checksRun(opts *ChecksOptions) error {
time.Sleep(opts.Interval)
}
opts.IO.StopAlternateScreenBuffer()
if err != nil {
return err
}
if opts.Watch {
// Print final summary to original screen buffer
printSummary(opts.IO, counts)
err = printTable(opts.IO, checks)
if err != nil {
return err
}
}
if counts.Failed+counts.Pending > 0 {
return cmdutil.SilentError
}
return nil
}
func refreshScreen(w io.Writer) {
if runtime.GOOS == "windows" {
// Just clear whole screen; I wasn't able to get the nicer cursor movement thing working
fmt.Fprintf(w, "\x1b[2J")
} else {
// Move cursor to 0,0
fmt.Fprint(w, "\x1b[0;0H")
// Clear from cursor to bottom of screen
fmt.Fprint(w, "\x1b[J")
}
}

27
pkg/cmd/pr/checks/checks_test.go
View file

@ -103,77 +103,87 @@ func Test_checksRun(t *testing.T) {
name string
fixture string
prJSON string
nontty bool
tty bool
watch bool
wantOut string
wantErr string
}{
{
name: "no commits",
prJSON: `{ "number": 123 }`,
tty: true,
wantOut: "",
wantErr: "no commit found on the pull request",
},
{
name: "no checks",
prJSON: `{ "number": 123, "statusCheckRollup": { "nodes": [{"commit": {"oid": "abc"}}]}, "headRefName": "master" }`,
tty: true,
wantOut: "",
wantErr: "no checks reported on the 'master' branch",
},
{
name: "some failing",
fixture: "./fixtures/someFailing.json",
tty: true,
wantOut: "Some checks were not successful\n1 failing, 1 successful, 0 skipped, and 1 pending checks\n\nX sad tests 1m26s sweet link\n✓ cool tests 1m26s sweet link\n* slow tests 1m26s sweet link\n",
wantErr: "SilentError",
},
{
name: "some pending",
fixture: "./fixtures/somePending.json",
tty: true,
wantOut: "Some checks are still pending\n0 failing, 2 successful, 0 skipped, and 1 pending checks\n\n✓ cool tests 1m26s sweet link\n✓ rad tests 1m26s sweet link\n* slow tests 1m26s sweet link\n",
wantErr: "SilentError",
},
{
name: "all passing",
fixture: "./fixtures/allPassing.json",
tty: true,
wantOut: "All checks were successful\n0 failing, 3 successful, 0 skipped, and 0 pending checks\n\n✓ awesome tests 1m26s sweet link\n✓ cool tests 1m26s sweet link\n✓ rad tests 1m26s sweet link\n",
wantErr: "",
},
{
name: "watch all passing",
fixture: "./fixtures/allPassing.json",
tty: true,
watch: true,
wantOut: "\x1b[?1049hAll checks were successful\n0 failing, 3 successful, 0 skipped, and 0 pending checks\n\n✓ awesome tests 1m26s sweet link\n✓ cool tests 1m26s sweet link\n✓ rad tests 1m26s sweet link\n\x1b[?1049lAll checks were successful\n0 failing, 3 successful, 0 skipped, and 0 pending checks\n\n✓ awesome tests 1m26s sweet link\n✓ cool tests 1m26s sweet link\n✓ rad tests 1m26s sweet link\n",
wantErr: "",
},
{
name: "with statuses",
fixture: "./fixtures/withStatuses.json",
tty: true,
wantOut: "Some checks were not successful\n1 failing, 2 successful, 0 skipped, and 0 pending checks\n\nX a status sweet link\n✓ cool tests 1m26s sweet link\n✓ rad tests 1m26s sweet link\n",
wantErr: "SilentError",
},
{
name: "no checks",
nontty: true,
prJSON: `{ "number": 123, "statusCheckRollup": { "nodes": [{"commit": {"oid": "abc"}}]}, "headRefName": "master" }`,
wantOut: "",
wantErr: "no checks reported on the 'master' branch",
},
{
name: "some failing",
nontty: true,
fixture: "./fixtures/someFailing.json",
wantOut: "sad tests\tfail\t1m26s\tsweet link\ncool tests\tpass\t1m26s\tsweet link\nslow tests\tpending\t1m26s\tsweet link\n",
wantErr: "SilentError",
},
{
name: "some pending",
nontty: true,
fixture: "./fixtures/somePending.json",
wantOut: "cool tests\tpass\t1m26s\tsweet link\nrad tests\tpass\t1m26s\tsweet link\nslow tests\tpending\t1m26s\tsweet link\n",
wantErr: "SilentError",
},
{
name: "all passing",
nontty: true,
fixture: "./fixtures/allPassing.json",
wantOut: "awesome tests\tpass\t1m26s\tsweet link\ncool tests\tpass\t1m26s\tsweet link\nrad tests\tpass\t1m26s\tsweet link\n",
wantErr: "",
},
{
name: "with statuses",
nontty: true,
fixture: "./fixtures/withStatuses.json",
wantOut: "a status\tfail\t0\tsweet link\ncool tests\tpass\t1m26s\tsweet link\nrad tests\tpass\t1m26s\tsweet link\n",
wantErr: "SilentError",
@ -181,6 +191,7 @@ func Test_checksRun(t *testing.T) {
{
name: "some skipped",
fixture: "./fixtures/someSkipping.json",
tty: true,
wantOut: "All checks were successful\n0 failing, 1 successful, 2 skipped, and 0 pending checks\n\n✓ cool tests 1m26s sweet link\n- rad tests 1m26s sweet link\n- skip tests 1m26s sweet link\n",
wantErr: "",
},
@ -189,7 +200,8 @@ func Test_checksRun(t *testing.T) {
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
ios, _, stdout, _ := iostreams.Test()
ios.SetStdoutTTY(!tt.nontty)
ios.SetStdoutTTY(tt.tty)
ios.SetAlternateScreenBufferEnabled(tt.tty)
var response *api.PullRequest
var jsonReader io.Reader
@ -208,6 +220,7 @@ func Test_checksRun(t *testing.T) {
IO: ios,
SelectorArg: "123",
Finder: shared.NewMockFinder("123", response, ghrepo.New("OWNER", "REPO")),
Watch: tt.watch,
}
err := checksRun(opts)

66
pkg/cmd/run/watch/watch.go
View file

@ -1,9 +1,10 @@
package watch
import (
"bytes"
"fmt"
"io"
"net/http"
"runtime"
"time"
"github.com/MakeNowJust/heredoc"
@ -86,7 +87,6 @@ func watchRun(opts *WatchOptions) error {
return fmt.Errorf("failed to determine base repo: %w", err)
}
out := opts.IO.Out
cs := opts.IO.ColorScheme()
runID := opts.RunID
@ -121,7 +121,7 @@ func watchRun(opts *WatchOptions) error {
}
if run.Status == shared.Completed {
fmt.Fprintf(out, "Run %s (%s) has already completed with '%s'\n", cs.Bold(run.Name), cs.Cyanf("%d", run.ID), run.Conclusion)
fmt.Fprintf(opts.IO.Out, "Run %s (%s) has already completed with '%s'\n", cs.Bold(run.Name), cs.Cyanf("%d", run.ID), run.Conclusion)
if opts.ExitStatus && run.Conclusion != shared.Success {
return cmdutil.SilentError
}
@ -134,11 +134,6 @@ func watchRun(opts *WatchOptions) error {
prNumber = fmt.Sprintf(" #%d", number)
}
if err := opts.IO.EnableVirtualTerminalProcessing(); err == nil {
// clear entire screen
fmt.Fprintf(out, "\x1b[2J")
}
annotationCache := map[int64][]shared.Annotation{}
duration, err := time.ParseDuration(fmt.Sprintf("%ds", opts.Interval))
@ -146,20 +141,52 @@ func watchRun(opts *WatchOptions) error {
return fmt.Errorf("could not parse interval: %w", err)
}
out := &bytes.Buffer{}
opts.IO.StartAlternateScreenBuffer()
for run.Status != shared.Completed {
run, err = renderRun(*opts, client, repo, run, prNumber, annotationCache)
// Write to a temporary buffer to reduce total number of fetches
run, err = renderRun(out, *opts, client, repo, run, prNumber, annotationCache)
if err != nil {
return err
break
}
if run.Status == shared.Completed {
break
}
// If not completed, refresh the screen buffer and write the temporary buffer to stdout
opts.IO.RefreshScreen()
fmt.Fprintln(opts.IO.Out, cs.Boldf("Refreshing run status every %d seconds. Press Ctrl+C to quit.", opts.Interval))
fmt.Fprintln(opts.IO.Out)
_, err = io.Copy(opts.IO.Out, out)
out.Reset()
if err != nil {
break
}
time.Sleep(duration)
}
opts.IO.StopAlternateScreenBuffer()
if err != nil {
return nil
}
// Write the last temporary buffer one last time
_, err = io.Copy(opts.IO.Out, out)
if err != nil {
return err
}
symbol, symbolColor := shared.Symbol(cs, run.Status, run.Conclusion)
id := cs.Cyanf("%d", run.ID)
if opts.IO.IsStdoutTTY() {
fmt.Fprintln(out)
fmt.Fprintf(out, "%s Run %s (%s) completed with '%s'\n", symbolColor(symbol), cs.Bold(run.Name), id, run.Conclusion)
fmt.Fprintln(opts.IO.Out)
fmt.Fprintf(opts.IO.Out, "%s Run %s (%s) completed with '%s'\n", symbolColor(symbol), cs.Bold(run.Name), id, run.Conclusion)
}
if opts.ExitStatus && run.Conclusion != shared.Success {
@ -169,8 +196,7 @@ func watchRun(opts *WatchOptions) error {
return nil
}
func renderRun(opts WatchOptions, client *api.Client, repo ghrepo.Interface, run *shared.Run, prNumber string, annotationCache map[int64][]shared.Annotation) (*shared.Run, error) {
out := opts.IO.Out
func renderRun(out io.Writer, opts WatchOptions, client *api.Client, repo ghrepo.Interface, run *shared.Run, prNumber string, annotationCache map[int64][]shared.Annotation) (*shared.Run, error) {
cs := opts.IO.ColorScheme()
var err error
@ -212,18 +238,6 @@ func renderRun(opts WatchOptions, client *api.Client, repo ghrepo.Interface, run
return nil, fmt.Errorf("failed to get annotations: %w", annotationErr)
}
if runtime.GOOS == "windows" {
// Just clear whole screen; I wasn't able to get the nicer cursor movement thing working
fmt.Fprintf(opts.IO.Out, "\x1b[2J")
} else {
// Move cursor to 0,0
fmt.Fprint(opts.IO.Out, "\x1b[0;0H")
// Clear from cursor to bottom of screen
fmt.Fprint(opts.IO.Out, "\x1b[J")
}
fmt.Fprintln(out, cs.Boldf("Refreshing run status every %d seconds. Press Ctrl+C to quit.", opts.Interval))
fmt.Fprintln(out)
fmt.Fprintln(out, shared.RenderRunHeader(cs, *run, utils.FuzzyAgo(ago), prNumber))
fmt.Fprintln(out)

75
pkg/cmd/run/watch/watch_test.go
View file

@ -4,7 +4,6 @@ import (
"bytes"
"io"
"net/http"
"runtime"
"testing"
"time"
@ -167,16 +166,14 @@ func TestWatchRun(t *testing.T) {
}
tests := []struct {
name string
httpStubs func(*httpmock.Registry)
askStubs func(*prompt.AskStubber)
opts *WatchOptions
tty bool
wantErr bool
errMsg string
wantOut string
onlyWindows bool
skipWindows bool
name string
httpStubs func(*httpmock.Registry)
askStubs func(*prompt.AskStubber)
opts *WatchOptions
tty bool
wantErr bool
errMsg string
wantOut string
}{
{
name: "run ID provided run already completed",
@ -225,9 +222,8 @@ func TestWatchRun(t *testing.T) {
},
},
{
name: "interval respected",
skipWindows: true,
tty: true,
name: "interval respected",
tty: true,
opts: &WatchOptions{
Interval: 0,
Prompt: true,
@ -238,27 +234,11 @@ func TestWatchRun(t *testing.T) {
AssertOptions([]string{"* cool commit, run (trunk) Feb 23, 2021", "* cool commit, more runs (trunk) Feb 23, 2021"}).
AnswerWith("* cool commit, more runs (trunk) Feb 23, 2021")
},
wantOut: "\x1b[2J\x1b[0;0H\x1b[JRefreshing run status every 0 seconds. Press Ctrl+C to quit.\n\n* trunk more runs · 2\nTriggered via push about 59 minutes ago\n\nJOBS\n✓ cool job in 4m34s (ID 10)\n ✓ fob the barz\n ✓ barz the fob\n\x1b[0;0H\x1b[JRefreshing run status every 0 seconds. Press Ctrl+C to quit.\n\n✓ trunk more runs · 2\nTriggered via push about 59 minutes ago\n\nJOBS\n✓ cool job in 4m34s (ID 10)\n ✓ fob the barz\n ✓ barz the fob\n\n✓ Run more runs (2) completed with 'success'\n",
wantOut: "\x1b[?1049h\x1b[0;0H\x1b[JRefreshing run status every 0 seconds. Press Ctrl+C to quit.\n\n* trunk more runs · 2\nTriggered via push about 59 minutes ago\n\nJOBS\n✓ cool job in 4m34s (ID 10)\n ✓ fob the barz\n ✓ barz the fob\n\x1b[?1049l✓ trunk more runs · 2\nTriggered via push about 59 minutes ago\n\nJOBS\n✓ cool job in 4m34s (ID 10)\n ✓ fob the barz\n ✓ barz the fob\n\n✓ Run more runs (2) completed with 'success'\n",
},
{
name: "interval respected, windows",
onlyWindows: true,
opts: &WatchOptions{
Interval: 0,
Prompt: true,
},
httpStubs: successfulRunStubs,
askStubs: func(as *prompt.AskStubber) {
as.StubPrompt("Select a workflow run").
AssertOptions([]string{"* cool commit, run (trunk) Feb 23, 2021", "* cool commit, more runs (trunk) Feb 23, 2021"}).
AnswerWith("* cool commit, more runs (trunk) Feb 23, 2021")
},
wantOut: "\x1b[2J\x1b[2JRefreshing run status every 0 seconds. Press Ctrl+C to quit.\n\n* trunk more runs · 2\nTriggered via push about 59 minutes ago\n\nJOBS\n✓ cool job in 4m34s (ID 10)\n ✓ fob the barz\n ✓ barz the fob\n\x1b[2JRefreshing run status every 0 seconds. Press Ctrl+C to quit.\n\n✓ trunk more runs · 2\nTriggered via push about 59 minutes ago\n\nJOBS\n✓ cool job in 4m34s (ID 10)\n ✓ fob the barz\n ✓ barz the fob\n",
},
{
name: "exit status respected",
tty: true,
skipWindows: true,
name: "exit status respected",
tty: true,
opts: &WatchOptions{
Interval: 0,
Prompt: true,
@ -270,39 +250,13 @@ func TestWatchRun(t *testing.T) {
AssertOptions([]string{"* cool commit, run (trunk) Feb 23, 2021", "* cool commit, more runs (trunk) Feb 23, 2021"}).
AnswerWith("* cool commit, more runs (trunk) Feb 23, 2021")
},
wantOut: "\x1b[2J\x1b[0;0H\x1b[JRefreshing run status every 0 seconds. Press Ctrl+C to quit.\n\n* trunk more runs · 2\nTriggered via push about 59 minutes ago\n\n\x1b[0;0H\x1b[JRefreshing run status every 0 seconds. Press Ctrl+C to quit.\n\nX trunk more runs · 2\nTriggered via push about 59 minutes ago\n\nJOBS\nX sad job in 4m34s (ID 20)\n ✓ barf the quux\n X quux the barf\n\nANNOTATIONS\nX the job is sad\nsad job: blaze.py#420\n\n\nX Run more runs (2) completed with 'failure'\n",
wantErr: true,
errMsg: "SilentError",
},
{
name: "exit status respected, windows",
onlyWindows: true,
opts: &WatchOptions{
Interval: 0,
Prompt: true,
ExitStatus: true,
},
httpStubs: failedRunStubs,
askStubs: func(as *prompt.AskStubber) {
as.StubPrompt("Select a workflow run").
AssertOptions([]string{"* cool commit, run (trunk) Feb 23, 2021", "* cool commit, more runs (trunk) Feb 23, 2021"}).
AnswerWith("* cool commit, more runs (trunk) Feb 23, 2021")
},
wantOut: "\x1b[2J\x1b[2JRefreshing run status every 0 seconds. Press Ctrl+C to quit.\n\n* trunk more runs · 2\nTriggered via push about 59 minutes ago\n\n\x1b[2JRefreshing run status every 0 seconds. Press Ctrl+C to quit.\n\nX trunk more runs · 2\nTriggered via push about 59 minutes ago\n\nJOBS\nX sad job in 4m34s (ID 20)\n ✓ barf the quux\n X quux the barf\n\nANNOTATIONS\nX the job is sad\nsad job: blaze.py#420\n\n",
wantOut: "\x1b[?1049h\x1b[0;0H\x1b[JRefreshing run status every 0 seconds. Press Ctrl+C to quit.\n\n* trunk more runs · 2\nTriggered via push about 59 minutes ago\n\n\x1b[?1049lX trunk more runs · 2\nTriggered via push about 59 minutes ago\n\nJOBS\nX sad job in 4m34s (ID 20)\n ✓ barf the quux\n X quux the barf\n\nANNOTATIONS\nX the job is sad\nsad job: blaze.py#420\n\n\nX Run more runs (2) completed with 'failure'\n",
wantErr: true,
errMsg: "SilentError",
},
}
for _, tt := range tests {
if runtime.GOOS == "windows" {
if tt.skipWindows {
continue
}
} else if tt.onlyWindows {
continue
}
reg := &httpmock.Registry{}
tt.httpStubs(reg)
tt.opts.HttpClient = func() (*http.Client, error) {
@ -316,6 +270,7 @@ func TestWatchRun(t *testing.T) {
ios, _, stdout, _ := iostreams.Test()
ios.SetStdoutTTY(tt.tty)
ios.SetAlternateScreenBufferEnabled(tt.tty)
tt.opts.IO = ios
tt.opts.BaseRepo = func() (ghrepo.Interface, error) {
return ghrepo.FromFullName("OWNER/REPO")

3
pkg/iostreams/console.go
View file

@ -4,7 +4,6 @@
package iostreams
import (
"errors"
"os"
)
@ -13,5 +12,5 @@ func (s *IOStreams) EnableVirtualTerminalProcessing() error {
}
func enableVirtualTerminalProcessing(f *os.File) error {
return errors.New("not implemented")
return nil
}

43
pkg/iostreams/iostreams.go
View file

@ -44,6 +44,9 @@ type IOStreams struct {
progressIndicator *spinner.Spinner
progressIndicatorMu sync.Mutex
alternateScreenBufferEnabled bool
alternateScreenBufferActive bool
stdinTTYOverride bool
stdinIsTTY bool
stdoutTTYOverride bool
@ -278,6 +281,34 @@ func (s *IOStreams) StopProgressIndicator() {
s.progressIndicator = nil
}
func (s *IOStreams) StartAlternateScreenBuffer() {
if s.alternateScreenBufferEnabled {
if _, err := fmt.Fprint(s.Out, "\x1b[?1049h"); err == nil {
s.alternateScreenBufferActive = true
}
}
}
func (s *IOStreams) StopAlternateScreenBuffer() {
if s.alternateScreenBufferActive {
fmt.Fprint(s.Out, "\x1b[?1049l")
s.alternateScreenBufferActive = false
}
}
func (s *IOStreams) SetAlternateScreenBufferEnabled(enabled bool) {
s.alternateScreenBufferEnabled = enabled
}
func (s *IOStreams) RefreshScreen() {
if s.stdoutIsTTY {
// Move cursor to 0,0
fmt.Fprint(s.Out, "\x1b[0;0H")
// Clear from cursor to bottom of screen
fmt.Fprint(s.Out, "\x1b[J")
}
}
// TerminalWidth returns the width of the terminal that stdout is attached to.
// TODO: investigate whether ProcessTerminalWidth could replace all this.
func (s *IOStreams) TerminalWidth() int {
@ -373,10 +404,10 @@ func System() *IOStreams {
stdoutIsTTY := isTerminal(os.Stdout)
stderrIsTTY := isTerminal(os.Stderr)
assumeTrueColor := false
isVirtualTerminal := false
if stdoutIsTTY {
if err := enableVirtualTerminalProcessing(os.Stdout); err == nil {
assumeTrueColor = true
isVirtualTerminal = true
}
}
@ -386,8 +417,8 @@ func System() *IOStreams {
Out: colorable.NewColorable(os.Stdout),
ErrOut: colorable.NewColorable(os.Stderr),
colorEnabled: EnvColorForced() || (!EnvColorDisabled() && stdoutIsTTY),
is256enabled: assumeTrueColor || Is256ColorSupported(),
hasTrueColor: assumeTrueColor || IsTrueColorSupported(),
is256enabled: isVirtualTerminal || Is256ColorSupported(),
hasTrueColor: isVirtualTerminal || IsTrueColorSupported(),
pagerCommand: os.Getenv("PAGER"),
ttySize: ttySize,
}
@ -396,6 +427,10 @@ func System() *IOStreams {
io.progressIndicatorEnabled = true
}
if stdoutIsTTY && isVirtualTerminal {
io.alternateScreenBufferEnabled = true
}
// prevent duplicate isTerminal queries now that we know the answer
io.SetStdoutTTY(stdoutIsTTY)
io.SetStderrTTY(stderrIsTTY)

18
pkg/iostreams/iostreams_test.go
View file

@ -2,6 +2,7 @@ package iostreams
import (
"errors"
"fmt"
"testing"
)
@ -66,3 +67,20 @@ func TestIOStreams_ForceTerminal(t *testing.T) {
})
}
}
func TestStopAlternateScreenBuffer(t *testing.T) {
ios, _, stdout, _ := Test()
ios.SetAlternateScreenBufferEnabled(true)
ios.StartAlternateScreenBuffer()
fmt.Fprint(ios.Out, "test")
ios.StopAlternateScreenBuffer()
// Stopping a subsequent time should no-op.
ios.StopAlternateScreenBuffer()
const want = "\x1b[?1049htest\x1b[?1049l"
if got := stdout.String(); got != want {
t.Errorf("after IOStreams.StopAlternateScreenBuffer() got %q, want %q", got, want)
}
}