Treat tenancy as non enterprise

pkg/auth/auth.go

@@ -148,8 +148,15 @@ func defaultHost(cfg *config.Config) (string, string) {
 	return github, defaultSource
 }
 
+// TenancyHost is the domain name of a tenancy GitHub instance.
+const tenancyHost = "ghe.com"
+
 func isEnterprise(host string) bool {
-	return host != github && host != localhost
+	return host != github && host != localhost && !isTenancy(host)
+}
+
+func isTenancy(host string) bool {
+	return strings.HasSuffix(host, "."+tenancyHost)
 }
 
 func normalizeHostname(host string) string {

pkg/auth/auth_test.go

@@ -84,6 +84,30 @@ func TestTokenForHost(t *testing.T) {
 			wantToken:  "yyyyyyyyyyyyyyyyyyyy",
 			wantSource: "oauth_token",
 		},
+		{
+			name:        "token for tenant with GH_TOKEN, GITHUB_TOKEN, and config token",
+			host:        "tenant.ghe.com",
+			ghToken:     "GH_TOKEN",
+			githubToken: "GITHUB_TOKEN",
+			config:      testHostsConfig(),
+			wantToken:   "GH_TOKEN",
+			wantSource:  "GH_TOKEN",
+		},
+		{
+			name:        "token for tenant with GITHUB_TOKEN, and config token",
+			host:        "tenant.ghe.com",
+			githubToken: "GITHUB_TOKEN",
+			config:      testHostsConfig(),
+			wantToken:   "GITHUB_TOKEN",
+			wantSource:  "GITHUB_TOKEN",
+		},
+		{
+			name:       "token for tenant with config token",
+			host:       "tenant.ghe.com",
+			config:     testHostsConfig(),
+			wantToken:  "zzzzzzzzzzzzzzzzzzzz",
+			wantSource: "oauth_token",
+		},
 	}
 
 	for _, tt := range tests {
@@ -296,6 +320,10 @@ hosts:
     user: user2
     oauth_token: yyyyyyyyyyyyyyyyyyyy
     git_protocol: https
+  tenant.ghe.com:
+    user: user3
+    oauth_token: zzzzzzzzzzzzzzzzzzzz
+    git_protocol: https
 `
 	return config.ReadFromString(data)
 }