Fixed stats for private GitHub repositories

src/assets/javascripts/patches/source/github/index.ts

@@ -22,7 +22,13 @@
 
 import { Repo, User } from "github-types"
 import { Observable, from } from "rxjs"
-import { map } from "rxjs/operators"
+import {
+  defaultIfEmpty,
+  filter,
+  map,
+  share,
+  switchMap
+} from "rxjs/operators"
 
 import { round } from "utilities"
 
@@ -46,25 +52,29 @@ export function fetchSourceFactsFromGitHub(
   const url = typeof repo !== "undefined"
     ? `https://api.github.com/repos/${user}/${repo}`
     : `https://api.github.com/users/${user}`
-  return from(fetch(url).then(res => res.json()))
+  return from(fetch(url))
     .pipe(
+      filter(res => res.status === 200),
+      switchMap(res => res.json()),
       map(data => {
 
         /* GitHub repository */
         if (typeof repo !== "undefined") {
           const { stargazers_count, forks_count }: Repo = data
           return [
-            `${round(stargazers_count || 0)} Stars`,
-            `${round(forks_count || 0)} Forks`
+            `${round(stargazers_count!)} Stars`,
+            `${round(forks_count!)} Forks`
           ]
 
         /* GitHub user/organization */
         } else {
           const { public_repos }: User = data
           return [
-            `${round(public_repos || 0)} Repositories`
+            `${round(public_repos!)} Repositories`
           ]
         }
-      })
+      }),
+      defaultIfEmpty([]),
+      share()
     )
 }

src/assets/javascripts/patches/source/gitlab/index.ts

@@ -22,7 +22,13 @@
 
 import { ProjectSchema } from "gitlab"
 import { Observable, from } from "rxjs"
-import { map } from "rxjs/operators"
+import {
+  defaultIfEmpty,
+  filter,
+  map,
+  share,
+  switchMap
+} from "rxjs/operators"
 
 import { round } from "utilities"
 
@@ -44,11 +50,15 @@ export function fetchSourceFactsFromGitLab(
   base: string, project: string
 ): Observable<SourceFacts> {
   const url = `https://${base}/api/v4/projects/${encodeURIComponent(project)}`
-  return from(fetch(url).then(res => res.json()))
+  return from(fetch(url))
     .pipe(
+      filter(res => res.status === 200),
+      switchMap(res => res.json()),
       map(({ star_count, forks_count }: ProjectSchema) => ([
         `${round(star_count)} Stars`,
         `${round(forks_count)} Forks`
-      ]))
+      ])),
+      defaultIfEmpty([]),
+      share()
     )
 }

src/assets/javascripts/patches/source/index.ts

@@ -21,7 +21,7 @@
  */
 
 import { NEVER, Observable } from "rxjs"
-import { catchError, map, switchMap } from "rxjs/operators"
+import { catchError, filter, map, switchMap } from "rxjs/operators"
 
 import { getElementOrThrow, getElements } from "browser"
 import { renderSource } from "templates"
@@ -69,12 +69,12 @@ function fetchSourceFacts(
 
     /* GitHub repository */
     case "github":
-      const [, user, repo] = url.match(/^.+github\.com\/([^\/]+)\/?([^\/]+)?/i)
+      const [, user, repo] = url.match(/^.+github\.com\/([^\/]+)\/?([^\/]+)?/i)!
       return fetchSourceFactsFromGitHub(user, repo)
 
     /* GitLab repository */
     case "gitlab":
-      const [, base, slug] = url.match(/^.+?([^\/]*gitlab[^\/]+)\/(.+?)\/?$/i)
+      const [, base, slug] = url.match(/^.+?([^\/]*gitlab[^\/]+)\/(.+?)\/?$/i)!
       return fetchSourceFactsFromGitLab(base, slug)
 
     /* Everything else */
@@ -104,6 +104,7 @@ export function patchSource(
       switchMap(({ href }) => (
         cache(`${hash(href)}`, () => fetchSourceFacts(href))
       )),
+      filter(facts => facts.length > 0),
       catchError(() => NEVER)
     )
       .subscribe(facts => {