feat(bugs): fall back to email if provided

If a bugs url is not provided, but a `mailto` is, then that is used.

PR-URL: #3052
Credit: @Yash-Singh1
Close: #3052
Reviewed-by: @wraithgar

docs/content/commands/npm-bugs.md

@@ -15,9 +15,9 @@ aliases: issues
 ### Description
 
 This command tries to guess at the likely location of a package's bug
-tracker URL, and then tries to open it using the `--browser` config param.
-If no package name is provided, it will search for a `package.json` in the
-current folder and use the `name` property.
+tracker URL or the `mailto` URL of the support email, and then tries to
+open it using the `--browser` config param. If no package name is provided, it
+will search for a `package.json` in the current folder and use the `name` property.
 
 ### Configuration
 

lib/bugs.js

@@ -43,6 +43,9 @@ class Bugs extends BaseCommand {
 
       if (typeof mani.bugs === 'object' && mani.bugs.url)
         return mani.bugs.url
+
+      if (typeof mani.bugs === 'object' && mani.bugs.email)
+        return `mailto:${mani.bugs.email}`
     }
 
     // try to get it from the repo, if possible

test/lib/bugs.js

@@ -31,6 +31,16 @@ const pacote = {
         version: '1.2.3',
         repository: { url: 'https://github.com/foo/repoobj' },
       }
+      : spec === 'mailtest' ? {
+        name: 'mailtest',
+        version: '3.7.4',
+        bugs: { email: 'hello@example.com' },
+      }
+      : spec === 'secondmailtest' ? {
+        name: 'secondmailtest',
+        version: '0.1.1',
+        bugs: { email: 'ABC432abc@a.b.example.net' },
+      }
       : spec === '.' ? {
         name: 'thispkg',
         version: '1.2.3',
@@ -59,14 +69,16 @@ t.test('usage', (t) => {
   t.end()
 })
 
-t.test('open bugs urls', t => {
+t.test('open bugs urls & emails', t => {
   const expect = {
     nobugs: 'https://www.npmjs.com/package/nobugs',
     'bugsobj-nourl': 'https://www.npmjs.com/package/bugsobj-nourl',
     bugsurl: 'https://bugzilla.localhost/bugsurl',
     bugsobj: 'https://bugzilla.localhost/bugsobj',
     repourl: 'https://github.com/foo/repourl/issues',
     repoobj: 'https://github.com/foo/repoobj/issues',
+    mailtest: 'mailto:hello@example.com',
+    secondmailtest: 'mailto:ABC432abc@a.b.example.net',
     '.': 'https://example.com',
   }
   const keys = Object.keys(expect)