fix: set alt value for contributor image with no complete name (#335)

src/generate/__tests__/fixtures/contributors.json

@@ -25,6 +25,11 @@
     "avatar_url": "https://avatars1.githubusercontent.com/u/1500684",
     "contributions": ["translation"]
   },
+  "nocompletename": {
+    "login": "nocompletename",
+    "avatar_url": "https://avatars1.githubusercontent.com/u/1500684",
+    "contributions": ["translation"]
+  },
   "nologin_badrole": {
     "name": "Wildly Misconfigured",
     "avatar_url": "https://avatars1.githubusercontent.com/u/1500684",

src/generate/__tests__/format-contributor.js

@@ -77,3 +77,13 @@ test('format contributor with no GitHub account', () => {
 
   expect(formatContributor(options, contributor)).toBe(expected)
 })
+
+test('format contributor with no complete name', () => {
+  const contributor = contributors.nocompletename
+  const {options} = fixtures()
+
+  const expected =
+    '<img src="https://avatars1.githubusercontent.com/u/1500684?s=150" width="150px;" alt="nocompletename"/><br /><sub><b>nocompletename</b></sub><br /><a href="#translation-nocompletename" title="Translation">🌍</a>'
+
+  expect(formatContributor(options, contributor)).toBe(expected)
+})

src/generate/format-contributor.js

@@ -17,7 +17,9 @@ const contributorTemplate = _.template(
 const defaultImageSize = 100
 
 function defaultTemplate(templateData) {
-  const name = escapeName(templateData.contributor.name)
+  const rawName =
+    templateData.contributor.name || templateData.contributor.login
+  const name = escapeName(rawName)
   const avatar = avatarTemplate(
     _.assign(templateData, {
       name,