--- /dev/null
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package debug
+
+import (
+ "archive/zip"
+ "bytes"
+ "context"
+ "fmt"
+ "html/template"
+ "io"
+ stdlog "log"
+ "net"
+ "net/http"
+ "net/http/pprof"
+ "os"
+ "path"
+ "path/filepath"
+ "runtime"
+ rpprof "runtime/pprof"
+ "strconv"
+ "strings"
+ "sync"
+ "time"
+
+ "golang.org/x/tools/internal/event"
+ "golang.org/x/tools/internal/event/core"
+ "golang.org/x/tools/internal/event/export"
+ "golang.org/x/tools/internal/event/export/metric"
+ "golang.org/x/tools/internal/event/export/ocagent"
+ "golang.org/x/tools/internal/event/export/prometheus"
+ "golang.org/x/tools/internal/event/keys"
+ "golang.org/x/tools/internal/event/label"
+ "golang.org/x/tools/internal/lsp/cache"
+ "golang.org/x/tools/internal/lsp/debug/log"
+ "golang.org/x/tools/internal/lsp/debug/tag"
+ "golang.org/x/tools/internal/lsp/protocol"
+ "golang.org/x/tools/internal/lsp/source"
+ errors "golang.org/x/xerrors"
+)
+
+type contextKeyType int
+
+const (
+ instanceKey contextKeyType = iota
+ traceKey
+)
+
+// An Instance holds all debug information associated with a gopls instance.
+type Instance struct {
+ Logfile string
+ StartTime time.Time
+ ServerAddress string
+ DebugAddress string
+ ListenedDebugAddress string
+ Workdir string
+ OCAgentConfig string
+
+ LogWriter io.Writer
+
+ exporter event.Exporter
+
+ ocagent *ocagent.Exporter
+ prometheus *prometheus.Exporter
+ rpcs *Rpcs
+ traces *traces
+ State *State
+}
+
+// State holds debugging information related to the server state.
+type State struct {
+ mu sync.Mutex
+ clients []*Client
+ servers []*Server
+}
+
+// Caches returns the set of Cache objects currently being served.
+func (st *State) Caches() []*cache.Cache {
+ var caches []*cache.Cache
+ seen := make(map[string]struct{})
+ for _, client := range st.Clients() {
+ cache, ok := client.Session.Cache().(*cache.Cache)
+ if !ok {
+ continue
+ }
+ if _, found := seen[cache.ID()]; found {
+ continue
+ }
+ seen[cache.ID()] = struct{}{}
+ caches = append(caches, cache)
+ }
+ return caches
+}
+
+// Cache returns the Cache that matches the supplied id.
+func (st *State) Cache(id string) *cache.Cache {
+ for _, c := range st.Caches() {
+ if c.ID() == id {
+ return c
+ }
+ }
+ return nil
+}
+
+// Sessions returns the set of Session objects currently being served.
+func (st *State) Sessions() []*cache.Session {
+ var sessions []*cache.Session
+ for _, client := range st.Clients() {
+ sessions = append(sessions, client.Session)
+ }
+ return sessions
+}
+
+// Session returns the Session that matches the supplied id.
+func (st *State) Session(id string) *cache.Session {
+ for _, s := range st.Sessions() {
+ if s.ID() == id {
+ return s
+ }
+ }
+ return nil
+}
+
+// Views returns the set of View objects currently being served.
+func (st *State) Views() []*cache.View {
+ var views []*cache.View
+ for _, s := range st.Sessions() {
+ for _, v := range s.Views() {
+ if cv, ok := v.(*cache.View); ok {
+ views = append(views, cv)
+ }
+ }
+ }
+ return views
+}
+
+// View returns the View that matches the supplied id.
+func (st *State) View(id string) *cache.View {
+ for _, v := range st.Views() {
+ if v.ID() == id {
+ return v
+ }
+ }
+ return nil
+}
+
+// Clients returns the set of Clients currently being served.
+func (st *State) Clients() []*Client {
+ st.mu.Lock()
+ defer st.mu.Unlock()
+ clients := make([]*Client, len(st.clients))
+ copy(clients, st.clients)
+ return clients
+}
+
+// Client returns the Client matching the supplied id.
+func (st *State) Client(id string) *Client {
+ for _, c := range st.Clients() {
+ if c.Session.ID() == id {
+ return c
+ }
+ }
+ return nil
+}
+
+// Servers returns the set of Servers the instance is currently connected to.
+func (st *State) Servers() []*Server {
+ st.mu.Lock()
+ defer st.mu.Unlock()
+ servers := make([]*Server, len(st.servers))
+ copy(servers, st.servers)
+ return servers
+}
+
+// A Client is an incoming connection from a remote client.
+type Client struct {
+ Session *cache.Session
+ DebugAddress string
+ Logfile string
+ GoplsPath string
+ ServerID string
+ Service protocol.Server
+}
+
+// A Server is an outgoing connection to a remote LSP server.
+type Server struct {
+ ID string
+ DebugAddress string
+ Logfile string
+ GoplsPath string
+ ClientID string
+}
+
+// AddClient adds a client to the set being served.
+func (st *State) addClient(session *cache.Session) {
+ st.mu.Lock()
+ defer st.mu.Unlock()
+ st.clients = append(st.clients, &Client{Session: session})
+}
+
+// DropClient removes a client from the set being served.
+func (st *State) dropClient(session source.Session) {
+ st.mu.Lock()
+ defer st.mu.Unlock()
+ for i, c := range st.clients {
+ if c.Session == session {
+ copy(st.clients[i:], st.clients[i+1:])
+ st.clients[len(st.clients)-1] = nil
+ st.clients = st.clients[:len(st.clients)-1]
+ return
+ }
+ }
+}
+
+// AddServer adds a server to the set being queried. In practice, there should
+// be at most one remote server.
+func (st *State) addServer(server *Server) {
+ st.mu.Lock()
+ defer st.mu.Unlock()
+ st.servers = append(st.servers, server)
+}
+
+// DropServer drops a server from the set being queried.
+func (st *State) dropServer(id string) {
+ st.mu.Lock()
+ defer st.mu.Unlock()
+ for i, s := range st.servers {
+ if s.ID == id {
+ copy(st.servers[i:], st.servers[i+1:])
+ st.servers[len(st.servers)-1] = nil
+ st.servers = st.servers[:len(st.servers)-1]
+ return
+ }
+ }
+}
+
+// an http.ResponseWriter that filters writes
+type filterResponse struct {
+ w http.ResponseWriter
+ edit func([]byte) []byte
+}
+
+func (c filterResponse) Header() http.Header {
+ return c.w.Header()
+}
+
+func (c filterResponse) Write(buf []byte) (int, error) {
+ ans := c.edit(buf)
+ return c.w.Write(ans)
+}
+
+func (c filterResponse) WriteHeader(n int) {
+ c.w.WriteHeader(n)
+}
+
+// replace annoying nuls by spaces
+func cmdline(w http.ResponseWriter, r *http.Request) {
+ fake := filterResponse{
+ w: w,
+ edit: func(buf []byte) []byte {
+ return bytes.ReplaceAll(buf, []byte{0}, []byte{' '})
+ },
+ }
+ pprof.Cmdline(fake, r)
+}
+
+func (i *Instance) getCache(r *http.Request) interface{} {
+ return i.State.Cache(path.Base(r.URL.Path))
+}
+
+func (i *Instance) getSession(r *http.Request) interface{} {
+ return i.State.Session(path.Base(r.URL.Path))
+}
+
+func (i Instance) getClient(r *http.Request) interface{} {
+ return i.State.Client(path.Base(r.URL.Path))
+}
+
+func (i Instance) getServer(r *http.Request) interface{} {
+ i.State.mu.Lock()
+ defer i.State.mu.Unlock()
+ id := path.Base(r.URL.Path)
+ for _, s := range i.State.servers {
+ if s.ID == id {
+ return s
+ }
+ }
+ return nil
+}
+
+func (i Instance) getView(r *http.Request) interface{} {
+ return i.State.View(path.Base(r.URL.Path))
+}
+
+func (i *Instance) getFile(r *http.Request) interface{} {
+ identifier := path.Base(r.URL.Path)
+ sid := path.Base(path.Dir(r.URL.Path))
+ s := i.State.Session(sid)
+ if s == nil {
+ return nil
+ }
+ for _, o := range s.Overlays() {
+ if o.FileIdentity().Hash == identifier {
+ return o
+ }
+ }
+ return nil
+}
+
+func (i *Instance) getInfo(r *http.Request) interface{} {
+ buf := &bytes.Buffer{}
+ i.PrintServerInfo(r.Context(), buf)
+ return template.HTML(buf.String())
+}
+
+func (i *Instance) AddService(s protocol.Server, session *cache.Session) {
+ for _, c := range i.State.clients {
+ if c.Session == session {
+ c.Service = s
+ return
+ }
+ }
+ stdlog.Printf("unable to find a Client to add the protocol.Server to")
+}
+
+func getMemory(r *http.Request) interface{} {
+ var m runtime.MemStats
+ runtime.ReadMemStats(&m)
+ return m
+}
+
+func init() {
+ event.SetExporter(makeGlobalExporter(os.Stderr))
+}
+
+func GetInstance(ctx context.Context) *Instance {
+ if ctx == nil {
+ return nil
+ }
+ v := ctx.Value(instanceKey)
+ if v == nil {
+ return nil
+ }
+ return v.(*Instance)
+}
+
+// WithInstance creates debug instance ready for use using the supplied
+// configuration and stores it in the returned context.
+func WithInstance(ctx context.Context, workdir, agent string) context.Context {
+ i := &Instance{
+ StartTime: time.Now(),
+ Workdir: workdir,
+ OCAgentConfig: agent,
+ }
+ i.LogWriter = os.Stderr
+ ocConfig := ocagent.Discover()
+ //TODO: we should not need to adjust the discovered configuration
+ ocConfig.Address = i.OCAgentConfig
+ i.ocagent = ocagent.Connect(ocConfig)
+ i.prometheus = prometheus.New()
+ i.rpcs = &Rpcs{}
+ i.traces = &traces{}
+ i.State = &State{}
+ i.exporter = makeInstanceExporter(i)
+ return context.WithValue(ctx, instanceKey, i)
+}
+
+// SetLogFile sets the logfile for use with this instance.
+func (i *Instance) SetLogFile(logfile string, isDaemon bool) (func(), error) {
+ // TODO: probably a better solution for deferring closure to the caller would
+ // be for the debug instance to itself be closed, but this fixes the
+ // immediate bug of logs not being captured.
+ closeLog := func() {}
+ if logfile != "" {
+ if logfile == "auto" {
+ if isDaemon {
+ logfile = filepath.Join(os.TempDir(), fmt.Sprintf("gopls-daemon-%d.log", os.Getpid()))
+ } else {
+ logfile = filepath.Join(os.TempDir(), fmt.Sprintf("gopls-%d.log", os.Getpid()))
+ }
+ }
+ f, err := os.Create(logfile)
+ if err != nil {
+ return nil, errors.Errorf("unable to create log file: %w", err)
+ }
+ closeLog = func() {
+ defer f.Close()
+ }
+ stdlog.SetOutput(io.MultiWriter(os.Stderr, f))
+ i.LogWriter = f
+ }
+ i.Logfile = logfile
+ return closeLog, nil
+}
+
+// Serve starts and runs a debug server in the background.
+// It also logs the port the server starts on, to allow for :0 auto assigned
+// ports.
+func (i *Instance) Serve(ctx context.Context) error {
+ stdlog.SetFlags(stdlog.Lshortfile)
+ if i.DebugAddress == "" {
+ return nil
+ }
+ listener, err := net.Listen("tcp", i.DebugAddress)
+ if err != nil {
+ return err
+ }
+ i.ListenedDebugAddress = listener.Addr().String()
+
+ port := listener.Addr().(*net.TCPAddr).Port
+ if strings.HasSuffix(i.DebugAddress, ":0") {
+ stdlog.Printf("debug server listening at http://localhost:%d", port)
+ }
+ event.Log(ctx, "Debug serving", tag.Port.Of(port))
+ go func() {
+ mux := http.NewServeMux()
+ mux.HandleFunc("/", render(MainTmpl, func(*http.Request) interface{} { return i }))
+ mux.HandleFunc("/debug/", render(DebugTmpl, nil))
+ mux.HandleFunc("/debug/pprof/", pprof.Index)
+ mux.HandleFunc("/debug/pprof/cmdline", cmdline)
+ mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
+ mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
+ mux.HandleFunc("/debug/pprof/trace", pprof.Trace)
+ if i.prometheus != nil {
+ mux.HandleFunc("/metrics/", i.prometheus.Serve)
+ }
+ if i.rpcs != nil {
+ mux.HandleFunc("/rpc/", render(RPCTmpl, i.rpcs.getData))
+ }
+ if i.traces != nil {
+ mux.HandleFunc("/trace/", render(TraceTmpl, i.traces.getData))
+ }
+ mux.HandleFunc("/cache/", render(CacheTmpl, i.getCache))
+ mux.HandleFunc("/session/", render(SessionTmpl, i.getSession))
+ mux.HandleFunc("/view/", render(ViewTmpl, i.getView))
+ mux.HandleFunc("/client/", render(ClientTmpl, i.getClient))
+ mux.HandleFunc("/server/", render(ServerTmpl, i.getServer))
+ mux.HandleFunc("/file/", render(FileTmpl, i.getFile))
+ mux.HandleFunc("/info", render(InfoTmpl, i.getInfo))
+ mux.HandleFunc("/memory", render(MemoryTmpl, getMemory))
+ if err := http.Serve(listener, mux); err != nil {
+ event.Error(ctx, "Debug server failed", err)
+ return
+ }
+ event.Log(ctx, "Debug server finished")
+ }()
+ return nil
+}
+
+// MonitorMemory starts recording memory statistics each second.
+func (i *Instance) MonitorMemory(ctx context.Context) {
+ tick := time.NewTicker(time.Second)
+ nextThresholdGiB := uint64(1)
+ go func() {
+ for {
+ <-tick.C
+ var mem runtime.MemStats
+ runtime.ReadMemStats(&mem)
+ if mem.HeapAlloc < nextThresholdGiB*1<<30 {
+ continue
+ }
+ if err := i.writeMemoryDebug(nextThresholdGiB, true); err != nil {
+ event.Error(ctx, "writing memory debug info", err)
+ }
+ if err := i.writeMemoryDebug(nextThresholdGiB, false); err != nil {
+ event.Error(ctx, "writing memory debug info", err)
+ }
+ event.Log(ctx, fmt.Sprintf("Wrote memory usage debug info to %v", os.TempDir()))
+ nextThresholdGiB++
+ }
+ }()
+}
+
+func (i *Instance) writeMemoryDebug(threshold uint64, withNames bool) error {
+ suffix := "withnames"
+ if !withNames {
+ suffix = "nonames"
+ }
+
+ filename := fmt.Sprintf("gopls.%d-%dGiB-%s.zip", os.Getpid(), threshold, suffix)
+ zipf, err := os.OpenFile(filepath.Join(os.TempDir(), filename), os.O_CREATE|os.O_RDWR, 0644)
+ if err != nil {
+ return err
+ }
+ zipw := zip.NewWriter(zipf)
+
+ f, err := zipw.Create("heap.pb.gz")
+ if err != nil {
+ return err
+ }
+ if err := rpprof.Lookup("heap").WriteTo(f, 0); err != nil {
+ return err
+ }
+
+ f, err = zipw.Create("goroutines.txt")
+ if err != nil {
+ return err
+ }
+ if err := rpprof.Lookup("goroutine").WriteTo(f, 1); err != nil {
+ return err
+ }
+
+ for _, cache := range i.State.Caches() {
+ cf, err := zipw.Create(fmt.Sprintf("cache-%v.html", cache.ID()))
+ if err != nil {
+ return err
+ }
+ if _, err := cf.Write([]byte(cache.PackageStats(withNames))); err != nil {
+ return err
+ }
+ }
+
+ if err := zipw.Close(); err != nil {
+ return err
+ }
+ return zipf.Close()
+}
+
+func makeGlobalExporter(stderr io.Writer) event.Exporter {
+ p := export.Printer{}
+ var pMu sync.Mutex
+ return func(ctx context.Context, ev core.Event, lm label.Map) context.Context {
+ i := GetInstance(ctx)
+
+ if event.IsLog(ev) {
+ // Don't log context cancellation errors.
+ if err := keys.Err.Get(ev); errors.Is(err, context.Canceled) {
+ return ctx
+ }
+ // Make sure any log messages without an instance go to stderr.
+ if i == nil {
+ pMu.Lock()
+ p.WriteEvent(stderr, ev, lm)
+ pMu.Unlock()
+ }
+ level := log.LabeledLevel(lm)
+ // Exclude trace logs from LSP logs.
+ if level < log.Trace {
+ ctx = protocol.LogEvent(ctx, ev, lm, messageType(level))
+ }
+ }
+ if i == nil {
+ return ctx
+ }
+ return i.exporter(ctx, ev, lm)
+ }
+}
+
+func messageType(l log.Level) protocol.MessageType {
+ switch l {
+ case log.Error:
+ return protocol.Error
+ case log.Warning:
+ return protocol.Warning
+ case log.Debug:
+ return protocol.Log
+ }
+ return protocol.Info
+}
+
+func makeInstanceExporter(i *Instance) event.Exporter {
+ exporter := func(ctx context.Context, ev core.Event, lm label.Map) context.Context {
+ if i.ocagent != nil {
+ ctx = i.ocagent.ProcessEvent(ctx, ev, lm)
+ }
+ if i.prometheus != nil {
+ ctx = i.prometheus.ProcessEvent(ctx, ev, lm)
+ }
+ if i.rpcs != nil {
+ ctx = i.rpcs.ProcessEvent(ctx, ev, lm)
+ }
+ if i.traces != nil {
+ ctx = i.traces.ProcessEvent(ctx, ev, lm)
+ }
+ if event.IsLog(ev) {
+ if s := cache.KeyCreateSession.Get(ev); s != nil {
+ i.State.addClient(s)
+ }
+ if sid := tag.NewServer.Get(ev); sid != "" {
+ i.State.addServer(&Server{
+ ID: sid,
+ Logfile: tag.Logfile.Get(ev),
+ DebugAddress: tag.DebugAddress.Get(ev),
+ GoplsPath: tag.GoplsPath.Get(ev),
+ ClientID: tag.ClientID.Get(ev),
+ })
+ }
+ if s := cache.KeyShutdownSession.Get(ev); s != nil {
+ i.State.dropClient(s)
+ }
+ if sid := tag.EndServer.Get(ev); sid != "" {
+ i.State.dropServer(sid)
+ }
+ if s := cache.KeyUpdateSession.Get(ev); s != nil {
+ if c := i.State.Client(s.ID()); c != nil {
+ c.DebugAddress = tag.DebugAddress.Get(ev)
+ c.Logfile = tag.Logfile.Get(ev)
+ c.ServerID = tag.ServerID.Get(ev)
+ c.GoplsPath = tag.GoplsPath.Get(ev)
+ }
+ }
+ }
+ return ctx
+ }
+ // StdTrace must be above export.Spans below (by convention, export
+ // middleware applies its wrapped exporter last).
+ exporter = StdTrace(exporter)
+ metrics := metric.Config{}
+ registerMetrics(&metrics)
+ exporter = metrics.Exporter(exporter)
+ exporter = export.Spans(exporter)
+ exporter = export.Labels(exporter)
+ return exporter
+}
+
+type dataFunc func(*http.Request) interface{}
+
+func render(tmpl *template.Template, fun dataFunc) func(http.ResponseWriter, *http.Request) {
+ return func(w http.ResponseWriter, r *http.Request) {
+ var data interface{}
+ if fun != nil {
+ data = fun(r)
+ }
+ if err := tmpl.Execute(w, data); err != nil {
+ event.Error(context.Background(), "", err)
+ http.Error(w, err.Error(), http.StatusInternalServerError)
+ }
+ }
+}
+
+func commas(s string) string {
+ for i := len(s); i > 3; {
+ i -= 3
+ s = s[:i] + "," + s[i:]
+ }
+ return s
+}
+
+func fuint64(v uint64) string {
+ return commas(strconv.FormatUint(v, 10))
+}
+
+func fuint32(v uint32) string {
+ return commas(strconv.FormatUint(uint64(v), 10))
+}
+
+func fcontent(v []byte) string {
+ return string(v)
+}
+
+var BaseTemplate = template.Must(template.New("").Parse(`
+<html>
+<head>
+<title>{{template "title" .}}</title>
+<style>
+.profile-name{
+ display:inline-block;
+ width:6rem;
+}
+td.value {
+ text-align: right;
+}
+ul.events {
+ list-style-type: none;
+}
+
+</style>
+{{block "head" .}}{{end}}
+</head>
+<body>
+<a href="/">Main</a>
+<a href="/info">Info</a>
+<a href="/memory">Memory</a>
+<a href="/metrics">Metrics</a>
+<a href="/rpc">RPC</a>
+<a href="/trace">Trace</a>
+<hr>
+<h1>{{template "title" .}}</h1>
+{{block "body" .}}
+Unknown page
+{{end}}
+</body>
+</html>
+
+{{define "cachelink"}}<a href="/cache/{{.}}">Cache {{.}}</a>{{end}}
+{{define "clientlink"}}<a href="/client/{{.}}">Client {{.}}</a>{{end}}
+{{define "serverlink"}}<a href="/server/{{.}}">Server {{.}}</a>{{end}}
+{{define "sessionlink"}}<a href="/session/{{.}}">Session {{.}}</a>{{end}}
+{{define "viewlink"}}<a href="/view/{{.}}">View {{.}}</a>{{end}}
+{{define "filelink"}}<a href="/file/{{.Session}}/{{.FileIdentity.Hash}}">{{.FileIdentity.URI}}</a>{{end}}
+`)).Funcs(template.FuncMap{
+ "fuint64": fuint64,
+ "fuint32": fuint32,
+ "fcontent": fcontent,
+ "localAddress": func(s string) string {
+ // Try to translate loopback addresses to localhost, both for cosmetics and
+ // because unspecified ipv6 addresses can break links on Windows.
+ //
+ // TODO(rfindley): In the future, it would be better not to assume the
+ // server is running on localhost, and instead construct this address using
+ // the remote host.
+ host, port, err := net.SplitHostPort(s)
+ if err != nil {
+ return s
+ }
+ ip := net.ParseIP(host)
+ if ip == nil {
+ return s
+ }
+ if ip.IsLoopback() || ip.IsUnspecified() {
+ return "localhost:" + port
+ }
+ return s
+ },
+ "options": func(s *cache.Session) []string {
+ return showOptions(s.Options())
+ },
+})
+
+var MainTmpl = template.Must(template.Must(BaseTemplate.Clone()).Parse(`
+{{define "title"}}GoPls server information{{end}}
+{{define "body"}}
+<h2>Caches</h2>
+<ul>{{range .State.Caches}}<li>{{template "cachelink" .ID}}</li>{{end}}</ul>
+<h2>Sessions</h2>
+<ul>{{range .State.Sessions}}<li>{{template "sessionlink" .ID}} from {{template "cachelink" .Cache.ID}}</li>{{end}}</ul>
+<h2>Views</h2>
+<ul>{{range .State.Views}}<li>{{.Name}} is {{template "viewlink" .ID}} from {{template "sessionlink" .Session.ID}} in {{.Folder}}</li>{{end}}</ul>
+<h2>Clients</h2>
+<ul>{{range .State.Clients}}<li>{{template "clientlink" .Session.ID}}</li>{{end}}</ul>
+<h2>Servers</h2>
+<ul>{{range .State.Servers}}<li>{{template "serverlink" .ID}}</li>{{end}}</ul>
+{{end}}
+`))
+
+var InfoTmpl = template.Must(template.Must(BaseTemplate.Clone()).Parse(`
+{{define "title"}}GoPls version information{{end}}
+{{define "body"}}
+{{.}}
+{{end}}
+`))
+
+var MemoryTmpl = template.Must(template.Must(BaseTemplate.Clone()).Parse(`
+{{define "title"}}GoPls memory usage{{end}}
+{{define "head"}}<meta http-equiv="refresh" content="5">{{end}}
+{{define "body"}}
+<h2>Stats</h2>
+<table>
+<tr><td class="label">Allocated bytes</td><td class="value">{{fuint64 .HeapAlloc}}</td></tr>
+<tr><td class="label">Total allocated bytes</td><td class="value">{{fuint64 .TotalAlloc}}</td></tr>
+<tr><td class="label">System bytes</td><td class="value">{{fuint64 .Sys}}</td></tr>
+<tr><td class="label">Heap system bytes</td><td class="value">{{fuint64 .HeapSys}}</td></tr>
+<tr><td class="label">Malloc calls</td><td class="value">{{fuint64 .Mallocs}}</td></tr>
+<tr><td class="label">Frees</td><td class="value">{{fuint64 .Frees}}</td></tr>
+<tr><td class="label">Idle heap bytes</td><td class="value">{{fuint64 .HeapIdle}}</td></tr>
+<tr><td class="label">In use bytes</td><td class="value">{{fuint64 .HeapInuse}}</td></tr>
+<tr><td class="label">Released to system bytes</td><td class="value">{{fuint64 .HeapReleased}}</td></tr>
+<tr><td class="label">Heap object count</td><td class="value">{{fuint64 .HeapObjects}}</td></tr>
+<tr><td class="label">Stack in use bytes</td><td class="value">{{fuint64 .StackInuse}}</td></tr>
+<tr><td class="label">Stack from system bytes</td><td class="value">{{fuint64 .StackSys}}</td></tr>
+<tr><td class="label">Bucket hash bytes</td><td class="value">{{fuint64 .BuckHashSys}}</td></tr>
+<tr><td class="label">GC metadata bytes</td><td class="value">{{fuint64 .GCSys}}</td></tr>
+<tr><td class="label">Off heap bytes</td><td class="value">{{fuint64 .OtherSys}}</td></tr>
+</table>
+<h2>By size</h2>
+<table>
+<tr><th>Size</th><th>Mallocs</th><th>Frees</th></tr>
+{{range .BySize}}<tr><td class="value">{{fuint32 .Size}}</td><td class="value">{{fuint64 .Mallocs}}</td><td class="value">{{fuint64 .Frees}}</td></tr>{{end}}
+</table>
+{{end}}
+`))
+
+var DebugTmpl = template.Must(template.Must(BaseTemplate.Clone()).Parse(`
+{{define "title"}}GoPls Debug pages{{end}}
+{{define "body"}}
+<a href="/debug/pprof">Profiling</a>
+{{end}}
+`))
+
+var CacheTmpl = template.Must(template.Must(BaseTemplate.Clone()).Parse(`
+{{define "title"}}Cache {{.ID}}{{end}}
+{{define "body"}}
+<h2>memoize.Store entries</h2>
+<ul>{{range $k,$v := .MemStats}}<li>{{$k}} - {{$v}}</li>{{end}}</ul>
+<h2>Per-package usage - not accurate, for guidance only</h2>
+{{.PackageStats true}}
+{{end}}
+`))
+
+var ClientTmpl = template.Must(template.Must(BaseTemplate.Clone()).Parse(`
+{{define "title"}}Client {{.Session.ID}}{{end}}
+{{define "body"}}
+Using session: <b>{{template "sessionlink" .Session.ID}}</b><br>
+{{if .DebugAddress}}Debug this client at: <a href="http://{{localAddress .DebugAddress}}">{{localAddress .DebugAddress}}</a><br>{{end}}
+Logfile: {{.Logfile}}<br>
+Gopls Path: {{.GoplsPath}}<br>
+<h2>Diagnostics</h2>
+{{/*Service: []protocol.Server; each server has map[uri]fileReports;
+ each fileReport: map[diagnosticSoure]diagnosticReport
+ diagnosticSource is one of 5 source
+ diagnosticReport: snapshotID and map[hash]*source.Diagnostic
+ sourceDiagnostic: struct {
+ Range protocol.Range
+ Message string
+ Source string
+ Code string
+ CodeHref string
+ Severity protocol.DiagnosticSeverity
+ Tags []protocol.DiagnosticTag
+
+ Related []RelatedInformation
+ }
+ RelatedInformation: struct {
+ URI span.URI
+ Range protocol.Range
+ Message string
+ }
+ */}}
+<ul>{{range $k, $v := .Service.Diagnostics}}<li>{{$k}}:<ol>{{range $v}}<li>{{.}}</li>{{end}}</ol></li>{{end}}</ul>
+{{end}}
+`))
+
+var ServerTmpl = template.Must(template.Must(BaseTemplate.Clone()).Parse(`
+{{define "title"}}Server {{.ID}}{{end}}
+{{define "body"}}
+{{if .DebugAddress}}Debug this server at: <a href="http://{{localAddress .DebugAddress}}">{{localAddress .DebugAddress}}</a><br>{{end}}
+Logfile: {{.Logfile}}<br>
+Gopls Path: {{.GoplsPath}}<br>
+{{end}}
+`))
+
+var SessionTmpl = template.Must(template.Must(BaseTemplate.Clone()).Parse(`
+{{define "title"}}Session {{.ID}}{{end}}
+{{define "body"}}
+From: <b>{{template "cachelink" .Cache.ID}}</b><br>
+<h2>Views</h2>
+<ul>{{range .Views}}<li>{{.Name}} is {{template "viewlink" .ID}} in {{.Folder}}</li>{{end}}</ul>
+<h2>Overlays</h2>
+<ul>{{range .Overlays}}<li>{{template "filelink" .}}</li>{{end}}</ul>
+<h2>Options</h2>
+{{range options .}}<p>{{.}}{{end}}
+{{end}}
+`))
+
+var ViewTmpl = template.Must(template.Must(BaseTemplate.Clone()).Parse(`
+{{define "title"}}View {{.ID}}{{end}}
+{{define "body"}}
+Name: <b>{{.Name}}</b><br>
+Folder: <b>{{.Folder}}</b><br>
+From: <b>{{template "sessionlink" .Session.ID}}</b><br>
+<h2>Environment</h2>
+<ul>{{range .Options.Env}}<li>{{.}}</li>{{end}}</ul>
+{{end}}
+`))
+
+var FileTmpl = template.Must(template.Must(BaseTemplate.Clone()).Parse(`
+{{define "title"}}Overlay {{.FileIdentity.Hash}}{{end}}
+{{define "body"}}
+{{with .}}
+ From: <b>{{template "sessionlink" .Session}}</b><br>
+ URI: <b>{{.URI}}</b><br>
+ Identifier: <b>{{.FileIdentity.Hash}}</b><br>
+ Version: <b>{{.Version}}</b><br>
+ Kind: <b>{{.Kind}}</b><br>
+{{end}}
+<h3>Contents</h3>
+<pre>{{fcontent .Read}}</pre>
+{{end}}
+`))
projects / dotfiles / .git / blobdiff