datasource/gitlab_project_hooks: New Data Source

Closes: #1103

Author: timofurrer

docs/data-sources/project_hooks.md

@@ -0,0 +1,65 @@
+---
+# generated by https://github.com/hashicorp/terraform-plugin-docs
+page_title: "gitlab_project_hooks Data Source - terraform-provider-gitlab"
+subcategory: ""
+description: |-
+  The gitlab_project_hooks data source allows to retrieve details about hooks in a project.
+  Upstream API: GitLab REST API docs https://docs.gitlab.com/ee/api/projects.html#list-project-hooks
+---
+
+# gitlab_project_hooks (Data Source)
+
+The `gitlab_project_hooks` data source allows to retrieve details about hooks in a project.
+
+**Upstream API**: [GitLab REST API docs](https://docs.gitlab.com/ee/api/projects.html#list-project-hooks)
+
+## Example Usage
+
+```terraform
+data "gitlab_project" "example" {
+  id = "foo/bar/baz"
+}
+
+data "gitlab_project_hooks" "examples" {
+  project = data.gitlab_project.example.id
+}
+```
+
+<!-- schema generated by tfplugindocs -->
+## Schema
+
+### Required
+
+- `project` (String) The name or id of the project.
+
+### Read-Only
+
+- `hooks` (List of Object) The list of hooks. (see [below for nested schema](#nestedatt--hooks))
+- `id` (String) The ID of this resource.
+
+<a id="nestedatt--hooks"></a>
+### Nested Schema for `hooks`
+
+Read-Only:
+
+- `confidential_issues_events` (Boolean)
+- `confidential_note_events` (Boolean)
+- `deployment_events` (Boolean)
+- `enable_ssl_verification` (Boolean)
+- `hook_id` (Number)
+- `issues_events` (Boolean)
+- `job_events` (Boolean)
+- `merge_requests_events` (Boolean)
+- `note_events` (Boolean)
+- `pipeline_events` (Boolean)
+- `project` (String)
+- `project_id` (Number)
+- `push_events` (Boolean)
+- `push_events_branch_filter` (String)
+- `releases_events` (Boolean)
+- `tag_push_events` (Boolean)
+- `token` (String)
+- `url` (String)
+- `wiki_page_events` (Boolean)
+
+

examples/data-sources/gitlab_project_hooks/data-source.tf

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+data "gitlab_project" "example" {
+  id = "foo/bar/baz"
+}
+
+data "gitlab_project_hooks" "examples" {
+  project = data.gitlab_project.example.id
+}

internal/provider/data_source_gitlab_project_hooks.go

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+package provider
+
+import (
+	"context"
+
+	"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
+	"github.com/xanzy/go-gitlab"
+)
+
+var _ = registerDataSource("gitlab_project_hooks", func() *schema.Resource {
+	return &schema.Resource{
+		Description: `The ` + "`gitlab_project_hooks`" + ` data source allows to retrieve details about hooks in a project.
+
+**Upstream API**: [GitLab REST API docs](https://docs.gitlab.com/ee/api/projects.html#list-project-hooks)`,
+
+		ReadContext: dataSourceGitlabProjectHooksRead,
+		Schema: map[string]*schema.Schema{
+			"project": {
+				Description: "The name or id of the project.",
+				Type:        schema.TypeString,
+				Required:    true,
+			},
+			"hooks": {
+				Description: "The list of hooks.",
+				Type:        schema.TypeList,
+				Computed:    true,
+				Elem: &schema.Resource{
+					Schema: datasourceSchemaFromResourceSchema(gitlabProjectHookSchema(), nil, nil),
+				},
+			},
+		},
+	}
+})
+
+func dataSourceGitlabProjectHooksRead(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
+	client := meta.(*gitlab.Client)
+
+	project := d.Get("project").(string)
+	options := gitlab.ListProjectHooksOptions{
+		PerPage: 20,
+		Page:    1,
+	}
+
+	var hooks []*gitlab.ProjectHook
+	for options.Page != 0 {
+		paginatedHooks, resp, err := client.Projects.ListProjectHooks(project, &options, gitlab.WithContext(ctx))
+		if err != nil {
+			return diag.FromErr(err)
+		}
+
+		hooks = append(hooks, paginatedHooks...)
+		options.Page = resp.NextPage
+	}
+
+	d.SetId(project)
+	if err := d.Set("hooks", flattenGitlabProjectHooks(project, hooks)); err != nil {
+		return diag.Errorf("failed to set hooks to state: %v", err)
+	}
+
+	return nil
+}
+
+func flattenGitlabProjectHooks(project string, hooks []*gitlab.ProjectHook) (values []map[string]interface{}) {
+	for _, hook := range hooks {
+		values = append(values, gitlabProjectHookToStateMap(project, hook))
+	}
+	return values
+}

internal/provider/data_source_gitlab_project_hooks_test.go

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+//go:build acceptance
+// +build acceptance
+
+package provider
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
+)
+
+func TestAccDataSourceGitlabProjectHooks_basic(t *testing.T) {
+	testProject := testAccCreateProject(t)
+	testHooks := testAccCreateProjectHooks(t, testProject.ID, 25)
+
+	resource.ParallelTest(t, resource.TestCase{
+		ProviderFactories: providerFactories,
+		Steps: []resource.TestStep{
+			{
+				Config: fmt.Sprintf(`
+					data "gitlab_project_hooks" "this" {
+						project = "%s"
+					}
+				`, testProject.PathWithNamespace),
+				Check: resource.ComposeTestCheckFunc(
+					resource.TestCheckResourceAttr("data.gitlab_project_hooks.this", "hooks.#", fmt.Sprintf("%d", len(testHooks))),
+					resource.TestCheckResourceAttr("data.gitlab_project_hooks.this", "hooks.0.url", testHooks[0].URL),
+					resource.TestCheckResourceAttr("data.gitlab_project_hooks.this", "hooks.1.url", testHooks[1].URL),
+				),
+			},
+		},
+	})
+}