fix(breadcrumbs): calculate trailing slash for tag hierarchies (closes …

…jackyzha0#873)

quartz/components/Breadcrumbs.tsx

@@ -1,6 +1,6 @@
 import { QuartzComponent, QuartzComponentConstructor, QuartzComponentProps } from "./types"
 import breadcrumbsStyle from "./styles/breadcrumbs.scss"
-import { FullSlug, SimpleSlug, resolveRelative } from "../util/path"
+import { FullSlug, SimpleSlug, joinSegments, resolveRelative } from "../util/path"
 import { QuartzPluginData } from "../plugins/vfile"
 import { classNames } from "../util/lang"
 
@@ -82,8 +82,12 @@ export default ((opts?: Partial<BreadcrumbOptions>) => {
  // Split slug into hierarchy/parts
  const slugParts = fileData.slug?.split("/")
  if (slugParts) {
+ // is tag breadcrumb?
+ const isTagPath = slugParts[0] === "tags"
+
  // full path until current part
  let currentPath = ""
+
  for (let i = 0; i < slugParts.length - 1; i++) {
  let curPathSegment = slugParts[i]
 
@@ -97,10 +101,15 @@ export default ((opts?: Partial<BreadcrumbOptions>) => {
  }
 
  // Add current slug to full path
- currentPath += slugParts[i] + "/"
+ currentPath = joinSegments(currentPath, slugParts[i])
+ const includeTrailingSlash = !isTagPath || i < 1
 
  // Format and add current crumb
- const crumb = formatCrumb(curPathSegment, fileData.slug!, currentPath as SimpleSlug)
+ const crumb = formatCrumb(
+ curPathSegment,
+ fileData.slug!,
+ (currentPath + (includeTrailingSlash ? "/" : "")) as SimpleSlug,
+ )
  crumbs.push(crumb)
  }