Revert "*: update docs for hackdoc"

This reverts commit cc8c69c8974f7ce415641121cedb01d7e6aa9e17.

Reason for revert: <INSERT REASONING HERE>

Change-Id: I1315e930e2ef69db3188eda05e4aa0b12db24274
diff --git a/devtools/hackdoc/README.md b/devtools/hackdoc/README.md
index 3226cf2..45d4486 100644
--- a/devtools/hackdoc/README.md
+++ b/devtools/hackdoc/README.md
@@ -18,6 +18,6 @@
 
 To run hackdoc locally on a filesystem checkout (ie. when working on docs, templates, or hackdoc itself), run:
 
-     bazel run //devtools/hackdoc  -- -hspki_disable -docroot /path/to/hscloud
+     bazel run //devtools/hackdoc:local
 
 The output log should tell you where hackdoc just started listening at. Currently this is `127.0.0.1:8080` by default. You can change this by passing a `-listen` flag, eg. `-listen 127.0.0.1:4242`.
diff --git a/devtools/hackdoc/main.go b/devtools/hackdoc/main.go
index 413a129..558268b 100644
--- a/devtools/hackdoc/main.go
+++ b/devtools/hackdoc/main.go
@@ -111,6 +111,7 @@
 		return
 	}
 
+	glog.Infof("%+v", r.URL.Query())
 	ref := r.URL.Query().Get("ref")
 	if ref == "" {
 		ref = flagGitwebDefaultBranch
@@ -205,8 +206,7 @@
 		}
 
 		if file {
-			http.Redirect(r.w, r.r, "/"+fpath, 302)
-			//r.handleMarkdown(fpath, cfg)
+			r.handleMarkdown(fpath, cfg)
 			return
 		}
 	}
@@ -238,11 +238,6 @@
 	if file {
 		parts := strings.Split(r.rpath, "/")
 		dirpath := strings.Join(parts[:(len(parts)-1)], "/")
-		// TODO(q3k): figure out this hack, hopefully by implementing a real path type
-		if dirpath == "/" {
-			dirpath = "//"
-		}
-
 		cfg, err := config.ForPath(r.ctx, r.source, dirpath)
 		if err != nil {
 			glog.Errorf("could not get config for path %q: %w", dirpath, err)
diff --git a/devtools/hackdoc/markdown.go b/devtools/hackdoc/markdown.go
index d20f9e3..911c2c0 100644
--- a/devtools/hackdoc/markdown.go
+++ b/devtools/hackdoc/markdown.go
@@ -31,7 +31,6 @@
 				q["ref"] = []string{ref}
 				u.RawQuery = q.Encode()
 				node.Destination = []byte(u.String())
-				glog.Infof("link fix %q -> %q", dest, u.String())
 			}
 		}
 		return r.RenderNode(&buf, node, entering)
@@ -39,11 +38,6 @@
 	return buf.Bytes()
 }
 
-type pathPart struct {
-	Label string
-	Path  string
-}
-
 func (r *request) handleMarkdown(path string, cfg *config.Config) {
 	data, err := r.source.ReadFile(r.ctx, path)
 	if err != nil {
@@ -66,26 +60,11 @@
 	}
 
 	pathInDepot := strings.TrimPrefix(path, "//")
-	pathParts := []pathPart{
-		{Label: "//", Path: "/"},
-	}
-	parts := strings.Split(pathInDepot, "/")
-	fullPath := ""
-	for i, p := range parts {
-		label := p
-		if i != len(parts)-1 {
-			label = label + "/"
-		}
-		fullPath += "/" + p
-		pathParts = append(pathParts, pathPart{Label: label, Path: fullPath})
-	}
-
 	vars := map[string]interface{}{
 		"Rendered":    template.HTML(rendered),
 		"Title":       path,
 		"Path":        path,
 		"PathInDepot": pathInDepot,
-		"PathParts":   pathParts,
 		"HackdocURL":  flagHackdocURL,
 		"WebLinks":    r.source.WebLinks(pathInDepot),
 	}
diff --git a/devtools/hackdoc/tpl/default.html b/devtools/hackdoc/tpl/default.html
index a6c1d42..7120962 100644
--- a/devtools/hackdoc/tpl/default.html
+++ b/devtools/hackdoc/tpl/default.html
@@ -58,7 +58,7 @@
 }
 
 .column {
-    width: 80em;
+    max-width: 80em;
     padding: 1rem 0 1rem 0;
 }
 
@@ -85,16 +85,8 @@
     color: #b30014;
 }
 
-.header span.part {
+.header span.muted {
     color: #666;
-    padding-left: 0.2em;
-}
-
-.header span.part a {
-    color: rgb(27, 106, 203);
-}
-.header span.part a:visited {
-    color: rgb(27, 106, 203);
 }
 
 .footer {
@@ -106,14 +98,6 @@
     text-align: right;
 }
 
-.footer .left {
-    float: left;
-}
-
-.footer .right {
-    float: right;
-}
-
 .footer a {
     color: #bbb;
 }
@@ -180,20 +164,15 @@
     <div class="column">
         <div class="page">
             <div class="header">
-                <span class="red">hackdoc:</span>
-                {{ range .PathParts }}<span class="part"><a href="{{ .Path }}">{{ .Label }}</a></span>{{ end }}
-                <span class="red" style="margin-left: 1em;">shortcuts:</span> <a href="/">root</a>, <a href="/cluster/doc">cluster docs</a>, <a href="/doc/codelabs">codelabs</a>
-            </div>
-            {{ .Rendered }}
-        </div>
-        <div class="footer">
-            <div class="left">
-                View in:
+                <span class="red">hackdoc:</span><span>{{ .Path }}</span>
                 {{ range .WebLinks }}
                 <span class="muted">[{{ .Kind }} <a href="{{ .LinkURL }}">{{ .LinkLabel }}</a>]</span>
                 {{ end }}
             </div>
-            <div class="right">Generated by <a href="{{ .HackdocURL }}/devtools/hackdoc">hackdoc</a>.</div>
+            {{ .Rendered }}
+        </div>
+        <div class="footer">
+            Generated by <a href="{{ .HackdocURL }}/devtools/hackdoc">hackdoc</a>.
         </div>
     </div>
 </div>