Add visibility parameter to repository resource

Adds the additional visibility parameter allowing for enterprise
accounts to set the repository to be only internally visible.

Resolves #304

github/resource_github_repository.go

@@ -44,6 +44,11 @@ func resourceGithubRepository() *schema.Resource {
 				Type:     schema.TypeBool,
 				Optional: true,
 			},
+			"visibility": {
+				Type:         schema.TypeString,
+				Optional:     true,
+				ValidateFunc: validation.StringInSlice([]string{"public", "private", "internal"}, false),
+			},
 			"has_issues": {
 				Type:     schema.TypeBool,
 				Optional: true,
@@ -179,6 +184,7 @@ func resourceGithubRepositoryObject(d *schema.ResourceData) *github.Repository {
 		Description:         github.String(d.Get("description").(string)),
 		Homepage:            github.String(d.Get("homepage_url").(string)),
 		Private:             github.Bool(d.Get("private").(bool)),
+		Visibility:          github.String(d.Get("visibility").(string)),
 		HasDownloads:        github.Bool(d.Get("has_downloads").(bool)),
 		HasIssues:           github.Bool(d.Get("has_issues").(bool)),
 		HasProjects:         github.Bool(d.Get("has_projects").(bool)),
@@ -303,6 +309,7 @@ func resourceGithubRepositoryRead(d *schema.ResourceData, meta interface{}) erro
 	d.Set("description", repo.GetDescription())
 	d.Set("homepage_url", repo.GetHomepage())
 	d.Set("private", repo.GetPrivate())
+	d.Set("visibility", repo.GetVisibility())
 	d.Set("has_issues", repo.GetHasIssues())
 	d.Set("has_projects", repo.GetHasProjects())
 	d.Set("has_wiki", repo.GetHasWiki())

github/resource_github_repository_test.go

@@ -562,6 +562,7 @@ type testAccGithubRepositoryExpectedAttributes struct {
 	Description         string
 	Homepage            string
 	Private             bool
+	Visibility          string
 	HasDownloads        bool
 	HasIssues           bool
 	HasProjects         bool
@@ -594,6 +595,9 @@ func testAccCheckGithubRepositoryAttributes(repo *github.Repository, want *testA
 		if private := repo.GetPrivate(); private != want.Private {
 			return fmt.Errorf("got private %#v; want %#v", private, want.Private)
 		}
+		if visibility := repo.GetVisibility(); visibility != want.Visibility {
+			return fmt.Errorf("got visibility %#v; want %#v", visibility, want.Visibility)
+		}
 		if hasIssues := repo.GetHasIssues(); hasIssues != want.HasIssues {
 			return fmt.Errorf("got has issues %#v; want %#v", hasIssues, want.HasIssues)
 		}

website/docs/r/repository.html.markdown

@@ -41,6 +41,10 @@ The following arguments are supported:
 
 * `private` - (Optional) Set to `true` to create a private repository.
   Repositories are created as public (e.g. open source) by default.
+
+* `visibility` - (Optional) Can be `public` or `private`. If your organization is associated with an enterprise account 
+using GitHub Enterprise Cloud or GitHub Enterprise Server 2.20+, visibility can also be `internal`. The `visibility` 
+parameter overrides the `private` parameter.
 
 * `has_issues` - (Optional) Set to `true` to enable the GitHub Issues features
   on the repository.