Added code for Repository Tree Datasource

Author: Shocktrooper

docs/data-sources/repository_tree.md

@@ -0,0 +1,47 @@
+---
+# generated by https://github.com/hashicorp/terraform-plugin-docs
+page_title: "gitlab_repository_tree Data Source - terraform-provider-gitlab"
+subcategory: ""
+description: |-
+  The gitlab_repository_tree data source allows details of directories and files in a repository to be retrieved.
+  Upstream API: GitLab REST API docs https://docs.gitlab.com/ee/api/repositories.html#list-repository-tree
+---
+
+# gitlab_repository_tree (Data Source)
+
+The `gitlab_repository_tree` data source allows details of directories and files in a repository to be retrieved.
+
+**Upstream API**: [GitLab REST API docs](https://docs.gitlab.com/ee/api/repositories.html#list-repository-tree)
+
+
+
+<!-- schema generated by tfplugindocs -->
+## Schema
+
+### Required
+
+- `project` (String) The ID or full path of the project owned by the authenticated user.
+- `ref` (String) The name of a repository branch or tag.
+
+### Optional
+
+- `path` (String) The path inside repository. Used to get content of subdirectories.
+- `recursive` (Boolean) Boolean value used to get a recursive tree (false by default).
+
+### Read-Only
+
+- `id` (String) The ID of this resource.
+- `tree` (List of Object) The list of files/directories returned by the search (see [below for nested schema](#nestedatt--tree))
+
+<a id="nestedatt--tree"></a>
+### Nested Schema for `tree`
+
+Read-Only:
+
+- `id` (String)
+- `mode` (String)
+- `name` (String)
+- `path` (String)
+- `type` (String)
+
+

internal/provider/data_source_gitlab_repository_tree.go

@@ -0,0 +1,135 @@
+package provider
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
+	"github.com/mitchellh/hashstructure"
+	gitlab "github.com/xanzy/go-gitlab"
+)
+
+var _ = registerDataSource("gitlab_repository_tree", func() *schema.Resource {
+	return &schema.Resource{
+		Description: `The ` + "`gitlab_repository_tree`" + ` data source allows details of directories and files in a repository to be retrieved.
+
+**Upstream API**: [GitLab REST API docs](https://docs.gitlab.com/ee/api/repositories.html#list-repository-tree)`,
+
+		ReadContext: dataSourceGitlabRepositoryTreeRead,
+		Schema: map[string]*schema.Schema{
+			"project": {
+				Description: "The ID or full path of the project owned by the authenticated user.",
+				Type:        schema.TypeString,
+				Required:    true,
+			},
+			"path": {
+				Description: "The path inside repository. Used to get content of subdirectories.",
+				Type:        schema.TypeString,
+				Optional:    true,
+			},
+			"ref": {
+				Description: "The name of a repository branch or tag.",
+				Type:        schema.TypeString,
+				Required:    true,
+			},
+			"recursive": {
+				Description: "Boolean value used to get a recursive tree (false by default).",
+				Type:        schema.TypeBool,
+				Optional:    true,
+			},
+			"tree": {
+				Description: "The list of files/directories returned by the search",
+				Type:        schema.TypeList,
+				Computed:    true,
+				Elem: &schema.Resource{
+					Schema: map[string]*schema.Schema{
+						"id": {
+							Description: "The SHA-1 hash of the tree or blob in the repository.",
+							Type:        schema.TypeString,
+							Computed:    true,
+						},
+						"name": {
+							Description: "Name of the blob or tree in the repository",
+							Type:        schema.TypeString,
+							Computed:    true,
+						},
+						"type": {
+							Description: "Type of object in the repository. Can be either type tree or of type blob",
+							Type:        schema.TypeString,
+							Computed:    true,
+						},
+						"path": {
+							Description: "Path of the object inside of the repository.",
+							Type:        schema.TypeString,
+							Computed:    true,
+						},
+						"mode": {
+							Description: "Unix access mode of the file in the repository.",
+							Type:        schema.TypeString,
+							Computed:    true,
+						},
+					},
+				},
+			},
+		},
+	}
+})
+
+func dataSourceGitlabRepositoryTreeRead(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
+	client := meta.(*gitlab.Client)
+	project := d.Get("project").(string)
+
+	options := &gitlab.ListTreeOptions{
+		ListOptions: gitlab.ListOptions{
+			PerPage: 20,
+			Page:    1,
+		},
+		Path:      gitlab.String(d.Get("path").(string)),
+		Ref:       gitlab.String(d.Get("ref").(string)),
+		Recursive: gitlab.Bool(d.Get("recursive").(bool)),
+	}
+
+	var nodes []*gitlab.TreeNode
+	for options.Page != 0 {
+
+		paginatedNodes, resp, err := client.Repositories.ListTree(project, options, gitlab.WithContext(ctx))
+		if err != nil {
+			return diag.FromErr(err)
+		}
+
+		nodes = append(nodes, paginatedNodes...)
+
+		options.Page = resp.NextPage
+	}
+
+	optionsHash, err := hashstructure.Hash(&options, nil)
+	if err != nil {
+		return diag.FromErr(err)
+	}
+
+	d.SetId(fmt.Sprintf("%s:%d", project, optionsHash))
+	if err := d.Set("tree", flattenGitlabRepositoryTree(project, nodes)); err != nil {
+		return diag.Errorf("failed to set repository tree nodes to state: %v", err)
+	}
+
+	return nil
+}
+
+func flattenGitlabRepositoryTree(project string, treeNodes []*gitlab.TreeNode) []interface{} {
+	treeNodeList := []interface{}{}
+
+	for _, node := range treeNodes {
+
+		values := map[string]interface{}{
+			"id":   project,
+			"name": node.Name,
+			"type": node.Type,
+			"path": node.Path,
+			"mode": node.Mode,
+		}
+
+		treeNodeList = append(treeNodeList, values)
+	}
+	return treeNodeList
+}

internal/provider/data_source_gitlab_repository_tree_test.go

@@ -0,0 +1,36 @@
+//go:build acceptance
+// +build acceptance
+
+package provider
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
+)
+
+func TestAccDataSourceGitlabRepositoryTree_basic(t *testing.T) {
+	testProject := testAccCreateProject(t)
+
+	resource.ParallelTest(t, resource.TestCase{
+		ProviderFactories: providerFactories,
+		Steps: []resource.TestStep{
+			{
+				Config: fmt.Sprintf(`
+					data "gitlab_repository_tree" "this" {
+						project = %d
+						ref     = "%s"
+					}
+				`, testProject.ID, testProject.DefaultBranch),
+				Check: resource.ComposeTestCheckFunc(
+					resource.TestCheckResourceAttr("data.gitlab_repository_tree.this", "tree.#", "1"),
+					resource.TestCheckResourceAttr("data.gitlab_repository_tree.this", "tree.0.name", "README.md"),
+					resource.TestCheckResourceAttr("data.gitlab_repository_tree.this", "tree.0.type", "blob"),
+					resource.TestCheckResourceAttr("data.gitlab_repository_tree.this", "tree.0.path", "README.md"),
+					resource.TestCheckResourceAttr("data.gitlab_repository_tree.this", "tree.0.mode", "100644"),
+				),
+			},
+		},
+	})
+}