New resource: gitlab_label

Fixes #18

Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>

gitlab/provider.go

@@ -27,6 +27,7 @@ func Provider() terraform.ResourceProvider {
 		ResourcesMap: map[string]*schema.Resource{
 			"gitlab_group":        resourceGitlabGroup(),
 			"gitlab_project":      resourceGitlabProject(),
+			"gitlab_label":        resourceGitlabLabel(),
 			"gitlab_project_hook": resourceGitlabProjectHook(),
 			"gitlab_deploy_key":   resourceGitlabDeployKey(),
 		},

gitlab/resource_gitlab_label.go

@@ -0,0 +1,129 @@
+package gitlab
+
+import (
+	"log"
+
+	"github.com/hashicorp/terraform/helper/schema"
+	gitlab "github.com/xanzy/go-gitlab"
+)
+
+func resourceGitlabLabel() *schema.Resource {
+	return &schema.Resource{
+		Create: resourceGitlabLabelCreate,
+		Read:   resourceGitlabLabelRead,
+		Update: resourceGitlabLabelUpdate,
+		Delete: resourceGitlabLabelDelete,
+
+		Schema: map[string]*schema.Schema{
+			"project": {
+				Type:     schema.TypeString,
+				Required: true,
+			},
+			"name": {
+				Type:     schema.TypeString,
+				Required: true,
+				ForceNew: true,
+			},
+			"color": {
+				Type:     schema.TypeString,
+				Required: true,
+			},
+			"description": {
+				Type:     schema.TypeString,
+				Optional: true,
+			},
+		},
+	}
+}
+
+func resourceGitlabLabelCreate(d *schema.ResourceData, meta interface{}) error {
+	client := meta.(*gitlab.Client)
+	project := d.Get("project").(string)
+	options := &gitlab.CreateLabelOptions{
+		Name:  gitlab.String(d.Get("name").(string)),
+		Color: gitlab.String(d.Get("color").(string)),
+	}
+
+	if v, ok := d.GetOk("description"); ok {
+		options.Description = gitlab.String(v.(string))
+	}
+
+	log.Printf("[DEBUG] create gitlab label %s", *options.Name)
+
+	label, _, err := client.Labels.CreateLabel(project, options)
+	if err != nil {
+		return err
+	}
+
+	d.SetId(label.Name)
+
+	return resourceGitlabLabelRead(d, meta)
+}
+
+func resourceGitlabLabelRead(d *schema.ResourceData, meta interface{}) error {
+	client := meta.(*gitlab.Client)
+	project := d.Get("project").(string)
+	labelName := d.Id()
+	log.Printf("[DEBUG] read gitlab label %s/%s", project, labelName)
+
+	labels, response, err := client.Labels.ListLabels(project)
+	if err != nil {
+		if response.StatusCode == 404 {
+			log.Printf("[WARN] removing label %s from state because it no longer exists in gitlab", labelName)
+			d.SetId("")
+			return nil
+		}
+
+		return err
+	}
+	found := false
+	for _, label := range labels {
+		if label.Name == labelName {
+			d.Set("description", label.Description)
+			d.Set("color", label.Color)
+			d.Set("name", label.Name)
+			found = true
+			break
+		}
+	}
+	if !found {
+		log.Printf("[WARN] removing label %s from state because it no longer exists in gitlab", labelName)
+		d.SetId("")
+	}
+
+	return nil
+}
+
+func resourceGitlabLabelUpdate(d *schema.ResourceData, meta interface{}) error {
+	client := meta.(*gitlab.Client)
+	project := d.Get("project").(string)
+	options := &gitlab.UpdateLabelOptions{
+		Name:  gitlab.String(d.Get("name").(string)),
+		Color: gitlab.String(d.Get("color").(string)),
+	}
+
+	if d.HasChange("description") {
+		options.Description = gitlab.String(d.Get("description").(string))
+	}
+
+	log.Printf("[DEBUG] update gitlab label %s", d.Id())
+
+	_, _, err := client.Labels.UpdateLabel(project, options)
+	if err != nil {
+		return err
+	}
+
+	return resourceGitlabLabelRead(d, meta)
+}
+
+func resourceGitlabLabelDelete(d *schema.ResourceData, meta interface{}) error {
+	client := meta.(*gitlab.Client)
+	project := d.Get("project").(string)
+	log.Printf("[DEBUG] Delete gitlab label %s", d.Id())
+	options := &gitlab.DeleteLabelOptions{
+		Name: gitlab.String(d.Id()),
+	}
+
+	_, err := client.Labels.DeleteLabel(project, options)
+	return err
+}

gitlab/resource_gitlab_label_test.go

@@ -0,0 +1,174 @@
+package gitlab
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/hashicorp/terraform/helper/acctest"
+	"github.com/hashicorp/terraform/helper/resource"
+	"github.com/hashicorp/terraform/terraform"
+	"github.com/xanzy/go-gitlab"
+)
+
+func TestAccGitlabLabel_basic(t *testing.T) {
+	var label gitlab.Label
+	rInt := acctest.RandInt()
+
+	resource.Test(t, resource.TestCase{
+		PreCheck:     func() { testAccPreCheck(t) },
+		Providers:    testAccProviders,
+		CheckDestroy: testAccCheckGitlabLabelDestroy,
+		Steps: []resource.TestStep{
+			// Create a project and label with default options
+			{
+				Config: testAccGitlabLabelConfig(rInt),
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheckGitlabLabelExists("gitlab_label.fixme", &label),
+					testAccCheckGitlabLabelAttributes(&label, &testAccGitlabLabelExpectedAttributes{
+						Name:        fmt.Sprintf("FIXME-%d", rInt),
+						Color:       "#ffcc00",
+						Description: "fix this test",
+					}),
+				),
+			},
+			// Update the label to change the parameters
+			{
+				Config: testAccGitlabLabelUpdateConfig(rInt),
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheckGitlabLabelExists("gitlab_label.fixme", &label),
+					testAccCheckGitlabLabelAttributes(&label, &testAccGitlabLabelExpectedAttributes{
+						Name:        fmt.Sprintf("FIXME-%d", rInt),
+						Color:       "#ff0000",
+						Description: "red label",
+					}),
+				),
+			},
+			// Update the label to get back to initial settings
+			{
+				Config: testAccGitlabLabelConfig(rInt),
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheckGitlabLabelExists("gitlab_label.fixme", &label),
+					testAccCheckGitlabLabelAttributes(&label, &testAccGitlabLabelExpectedAttributes{
+						Name:        fmt.Sprintf("FIXME-%d", rInt),
+						Color:       "#ffcc00",
+						Description: "fix this test",
+					}),
+				),
+			},
+		},
+	})
+}
+
+func testAccCheckGitlabLabelExists(n string, label *gitlab.Label) resource.TestCheckFunc {
+	return func(s *terraform.State) error {
+		rs, ok := s.RootModule().Resources[n]
+		if !ok {
+			return fmt.Errorf("Not Found: %s", n)
+		}
+
+		labelName := rs.Primary.ID
+		repoName := rs.Primary.Attributes["project"]
+		if repoName == "" {
+			return fmt.Errorf("No project ID is set")
+		}
+		conn := testAccProvider.Meta().(*gitlab.Client)
+
+		labels, _, err := conn.Labels.ListLabels(repoName)
+		if err != nil {
+			return err
+		}
+		for _, gotLabel := range labels {
+			if gotLabel.Name == labelName {
+				*label = *gotLabel
+				return nil
+			}
+		}
+		return fmt.Errorf("Label does not exist")
+	}
+}
+
+type testAccGitlabLabelExpectedAttributes struct {
+	Name        string
+	Color       string
+	Description string
+}
+
+func testAccCheckGitlabLabelAttributes(label *gitlab.Label, want *testAccGitlabLabelExpectedAttributes) resource.TestCheckFunc {
+	return func(s *terraform.State) error {
+		if label.Name != want.Name {
+			return fmt.Errorf("got name %q; want %q", label.Name, want.Name)
+		}
+
+		if label.Description != want.Description {
+			return fmt.Errorf("got description %q; want %q", label.Description, want.Description)
+		}
+
+		if label.Color != want.Color {
+			return fmt.Errorf("got color %q; want %q", label.Color, want.Color)
+		}
+
+		return nil
+	}
+}
+
+func testAccCheckGitlabLabelDestroy(s *terraform.State) error {
+	conn := testAccProvider.Meta().(*gitlab.Client)
+
+	for _, rs := range s.RootModule().Resources {
+		if rs.Type != "gitlab_project" {
+			continue
+		}
+
+		gotRepo, resp, err := conn.Projects.GetProject(rs.Primary.ID)
+		if err == nil {
+			if gotRepo != nil && fmt.Sprintf("%d", gotRepo.ID) == rs.Primary.ID {
+				return fmt.Errorf("Repository still exists")
+			}
+		}
+		if resp.StatusCode != 404 {
+			return err
+		}
+		return nil
+	}
+	return nil
+}
+
+func testAccGitlabLabelConfig(rInt int) string {
+	return fmt.Sprintf(`
+resource "gitlab_project" "foo" {
+  name = "foo-%d"
+  description = "Terraform acceptance tests"
+
+  # So that acceptance tests can be run in a gitlab organization
+  # with no billing
+  visibility_level = "public"
+}
+
+resource "gitlab_label" "fixme" {
+  project = "${gitlab_project.foo.id}"
+  name = "FIXME-%d"
+  color = "#ffcc00"
+  description = "fix this test"
+}
+	`, rInt, rInt)
+}
+
+func testAccGitlabLabelUpdateConfig(rInt int) string {
+	return fmt.Sprintf(`
+resource "gitlab_project" "foo" {
+  name = "foo-%d"
+  description = "Terraform acceptance tests"
+
+  # So that acceptance tests can be run in a gitlab organization
+  # with no billing
+  visibility_level = "public"
+}
+
+resource "gitlab_label" "fixme" {
+  project = "${gitlab_project.foo.id}"
+  name = "FIXME-%d"
+  color = "#ff0000"
+  description = "red label"
+}
+	`, rInt, rInt)
+}

website/docs/r/label.html.markdown

@@ -0,0 +1,43 @@
+---
+layout: "gitlab"
+page_title: "GitLab: gitlab_label"
+sidebar_current: "docs-gitlab-resource-label"
+description: |-
+  Creates and manages labels for GitLab projects
+---
+
+# gitlab\_label
+
+This resource allows you to create and manage labels for your GitLab projects.
+For further information on labels, consult the [gitlab
+documentation](https://docs.gitlab.com/ee/user/project/labels.htm).
+
+
+## Example Usage
+
+```hcl
+resource "gitlab_label" "fixme" {
+  project     = "example"
+  name        = "fixme"
+  description = "issue with failing tests"
+  color       = "#ffcc00"
+}
+```
+
+## Argument Reference
+
+The following arguments are supported:
+
+* `project` - (Required) The name or id of the project to add the label to.
+
+* `name` - (Required) The name of the label.
+
+* `color` - (Required) The color of the label given in 6-digit hex notation with leading '#' sign (e.g. #FFAABB) or one of the [CSS color names](https://developer.mozilla.org/en-US/docs/Web/CSS/color_value#Color_keywords).
+
+* `description` - (Optional) The description of the label.
+
+## Attributes Reference
+
+The resource exports the following attributes:
+
+* `id` - The unique id assigned to the label by the GitLab server (the name of the label).

website/gitlab.erb

@@ -19,6 +19,9 @@
           <li<%= sidebar_current("docs-gitlab-resource-group") %>>
             <a href="/docs/providers/gitlab/r/group.html">gitlab_group</a>
           </li>
+          <li<%= sidebar_current("docs-gitlab-resource-label") %>>
+            <a href="/docs/providers/gitlab/r/label.html">gitlab_label</a>
+          </li>
           <li<%= sidebar_current("docs-gitlab-resource-project-hook") %>>
             <a href="/docs/providers/gitlab/r/project_hook.html">gitlab_project_hook</a>
           </li>