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-rw-r--r--third_party/gerrit-queue/frontend/frontend.go113
-rw-r--r--third_party/gerrit-queue/frontend/templates/changeset.tmpl.html15
-rw-r--r--third_party/gerrit-queue/frontend/templates/index.tmpl.html76
-rw-r--r--third_party/gerrit-queue/frontend/templates/serie.tmpl.html19
4 files changed, 223 insertions, 0 deletions
diff --git a/third_party/gerrit-queue/frontend/frontend.go b/third_party/gerrit-queue/frontend/frontend.go
new file mode 100644
index 000000000000..2cc65423f0e6
--- /dev/null
+++ b/third_party/gerrit-queue/frontend/frontend.go
@@ -0,0 +1,113 @@
+package frontend
+
+import (
+	"embed"
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+
+	"html/template"
+
+	"github.com/apex/log"
+
+	"github.com/tweag/gerrit-queue/gerrit"
+	"github.com/tweag/gerrit-queue/misc"
+	"github.com/tweag/gerrit-queue/submitqueue"
+)
+
+//go:embed templates
+var templates embed.FS
+
+//loadTemplate loads a list of templates, relative to the templates root, and a
+//FuncMap, and returns a template object
+func loadTemplate(templateNames []string, funcMap template.FuncMap) (*template.Template, error) {
+	if len(templateNames) == 0 {
+		return nil, fmt.Errorf("templateNames can't be empty")
+	}
+	tmpl := template.New(templateNames[0]).Funcs(funcMap)
+
+	for _, templateName := range templateNames {
+		r, err := templates.Open("/" + templateName)
+		if err != nil {
+			return nil, err
+		}
+		defer r.Close()
+		contents, err := ioutil.ReadAll(r)
+		if err != nil {
+			return nil, err
+		}
+		tmpl, err = tmpl.Parse(string(contents))
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return tmpl, nil
+}
+
+// MakeFrontend returns a http.Handler
+func MakeFrontend(rotatingLogHandler *misc.RotatingLogHandler, gerritClient *gerrit.Client, runner *submitqueue.Runner) http.Handler {
+	projectName := gerritClient.GetProjectName()
+	branchName := gerritClient.GetBranchName()
+
+	mux := http.NewServeMux()
+	mux.HandleFunc("/", func(w http.ResponseWriter, _ *http.Request) {
+		var wipSerie *gerrit.Serie = nil
+		HEAD := ""
+		currentlyRunning := runner.IsCurrentlyRunning()
+
+		// don't trigger operations requiring a lock
+		if !currentlyRunning {
+			wipSerie = runner.GetWIPSerie()
+			HEAD = gerritClient.GetHEAD()
+		}
+
+		funcMap := template.FuncMap{
+			"changesetURL": func(changeset *gerrit.Changeset) string {
+				return gerritClient.GetChangesetURL(changeset)
+			},
+			"levelToClasses": func(level log.Level) string {
+				switch level {
+				case log.DebugLevel:
+					return "text-muted"
+				case log.InfoLevel:
+					return "text-info"
+				case log.WarnLevel:
+					return "text-warning"
+				case log.ErrorLevel:
+					return "text-danger"
+				case log.FatalLevel:
+					return "text-danger"
+				default:
+					return "text-white"
+				}
+			},
+			"fieldsToJSON": func(fields log.Fields) string {
+				jsonData, _ := json.Marshal(fields)
+				return string(jsonData)
+			},
+		}
+
+		tmpl := template.Must(loadTemplate([]string{
+			"index.tmpl.html",
+			"serie.tmpl.html",
+			"changeset.tmpl.html",
+		}, funcMap))
+
+		tmpl.ExecuteTemplate(w, "index.tmpl.html", map[string]interface{}{
+			// Config
+			"projectName": projectName,
+			"branchName":  branchName,
+
+			// State
+			"currentlyRunning": currentlyRunning,
+			"wipSerie":         wipSerie,
+			"HEAD":             HEAD,
+
+			// History
+			"memory": rotatingLogHandler,
+		})
+	})
+	return mux
+}
diff --git a/third_party/gerrit-queue/frontend/templates/changeset.tmpl.html b/third_party/gerrit-queue/frontend/templates/changeset.tmpl.html
new file mode 100644
index 000000000000..5d3997885c73
--- /dev/null
+++ b/third_party/gerrit-queue/frontend/templates/changeset.tmpl.html
@@ -0,0 +1,15 @@
+{{ define "changeset" }}
+<tr>
+    <td>{{ .OwnerName }}</td>
+    <td>
+    <strong>{{ .Subject }}</strong> (<a href="{{ changesetURL . }}" target="_blank">#{{ .Number }}</a>)<br />
+    <small><code>{{ .CommitID }}</code></small>
+    </td>
+    <td>
+    <span>
+        {{ if .IsVerified }}<span class="badge badge-success badge-pill">+1 (CI)</span>{{ end }}
+        {{ if .IsCodeReviewed }}<span class="badge badge-info badge-pill">+2 (CR)</span>{{ end }}
+    </span>
+    </td>
+</tr>
+{{ end }}
\ No newline at end of file
diff --git a/third_party/gerrit-queue/frontend/templates/index.tmpl.html b/third_party/gerrit-queue/frontend/templates/index.tmpl.html
new file mode 100644
index 000000000000..e04c0a349dfc
--- /dev/null
+++ b/third_party/gerrit-queue/frontend/templates/index.tmpl.html
@@ -0,0 +1,76 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>Gerrit Submit Queue</title>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.js" integrity="sha256-WpOohJOqMqqyKL9FccASB9O0KwACQJpFTUBLTYOVvVU=" crossorigin="anonymous"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha256-CjSoeELFOcH0/uxWu6mC/Vlrc1AARqbm/jiiImDGV3s=" crossorigin="anonymous"></script>
+  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha256-YLGeXaapI0/5IgZopewRJcFXomhRMlYYjugPLSyNjTY=" crossorigin="anonymous" />
+</head>
+<body>
+  <nav class="navbar sticky-top navbar-expand-sm navbar-dark bg-dark">
+    <div class="container">
+      <a class="navbar-brand" href="#">Gerrit Submit Queue</a>
+      <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
+        <span class="navbar-toggler-icon"></span>
+      </button>
+      <div class="collapse navbar-collapse" id="navbarSupportedContent">
+        <ul class="navbar-nav mr-auto">
+          <li class="nav-item">
+            <a class="nav-link" href="#region-info">Info</a>
+          </li>
+          <li class="nav-item">
+            <a class="nav-link" href="#region-wipserie">WIP Serie</a>
+          </li>
+          <li class="nav-item">
+            <a class="nav-link" href="#region-log">Log</a>
+          </li>
+        </ul>
+      </div>
+    </div>
+  </nav>
+  <div class="container">
+    <h2 id="region-info">Info</h2>
+    <table class="table">
+      <tbody>
+        <tr>
+          <th scope="row">Project Name:</th>
+          <td>{{ .projectName }}</td>
+        </tr>
+        <tr>
+          <th scope="row">Branch Name:</th>
+          <td>{{ .branchName }}</td>
+        </tr>
+        <tr>
+          <th scope="row">Currently running:</th>
+          <td>
+            {{ if .currentlyRunning }}yes{{ else }}no{{ end }}
+          </td>
+        </tr>
+        <tr>
+          <th scope="row">HEAD:</th>
+          <td>
+            {{ if .HEAD }}{{ .HEAD }}{{ else }}-{{ end }}
+          </td>
+        </tr>
+      </tbody>
+    </table>
+
+    <h2 id="region-wipserie">WIP Serie</h2>
+    {{ if .wipSerie }}
+    {{ block "serie" .wipSerie }}{{ end }}
+    {{ else }}
+    - 
+    {{ end }}
+
+    <h2 id="region-log">Log</h2>
+    {{ range $entry := .memory.Entries }}
+    <div class="d-flex flex-row bg-dark {{ levelToClasses $entry.Level }} text-monospace"> 
+      <div class="p-2"><small>{{ $entry.Timestamp.Format "2006-01-02 15:04:05 UTC"}}</small></div>
+      <div class="p-2 flex-grow-1"><small><strong>{{ $entry.Message }}</strong></small></div>
+    </div>
+    <div class="bg-dark {{ levelToClasses $entry.Level }} text-monospace text-break" style="padding-left: 4rem"> 
+    <small>{{ fieldsToJSON $entry.Fields }}</small>
+    </div>
+    {{ end }}
+</body>
+</html>
diff --git a/third_party/gerrit-queue/frontend/templates/serie.tmpl.html b/third_party/gerrit-queue/frontend/templates/serie.tmpl.html
new file mode 100644
index 000000000000..60f0c18113d7
--- /dev/null
+++ b/third_party/gerrit-queue/frontend/templates/serie.tmpl.html
@@ -0,0 +1,19 @@
+{{ define "serie" }}
+<table class="table table-sm table-hover">
+<thead class="thead-light">
+    <tr>
+    <th scope="col">Owner</th>
+    <th scope="col">Changeset</th>
+    <th scope="col">Flags</th>
+    </tr>
+</thead>
+<tbody>
+    <tr>
+        <td colspan="3" class="table-success">Serie with {{ len .ChangeSets }} changes</td>
+    </tr>
+    {{ range $changeset := .ChangeSets }}
+    {{ block "changeset" $changeset }}{{ end }}
+    {{ end }}
+</tbody>
+</table>
+{{ end }}
\ No newline at end of file