Feat: Data source project (#117)

## What

Create a project data resource for the Terraform Codefresh provider

Fixes #116 

## Why

A project data resource would allow us to perform validation before
allowing a pipeline to target a project that may or may not exist.
Ordinarily you'd just target the project resource but pipelines are not
always created in the same location as the projects.

## Notes

I have no ability to test this at the moment (I do not have connectivity
to a Codefresh system), I'm hoping you can validate that it's good.

## Checklist

* [x] _I have read
[CONTRIBUTING.md](https://github.com/codefresh-io/terraform-provider-codefresh/blob/master/README.md)._
* [x] _I have [allowed changes to my fork to be
made](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/allowing-changes-to-a-pull-request-branch-created-from-a-fork)._
* [ ] _I have added tests, assuming new tests are warranted_.
* [x] _I understand that the `/test` comment will be ignored by the CI
trigger [unless it is made by a repo admin or
collaborator](https://codefresh.io/docs/docs/pipelines/triggers/git-triggers/#support-for-building-pull-requests-from-forks)._

---------

Co-authored-by: Yonatan Koren <10080107+korenyoni@users.noreply.github.com>
Co-authored-by: Ilia Medvedev <ilia.medvedev@codefresh.io>

Author: 3 people

codefresh/data_project.go

@@ -0,0 +1,69 @@
+package codefresh
+
+import (
+	"fmt"
+
+	cfClient "github.com/codefresh-io/terraform-provider-codefresh/codefresh/cfclient"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
+)
+
+func dataSourceProject() *schema.Resource {
+	return &schema.Resource{
+		Description: "This data source retrieves a project by its ID or name.",
+		Read:        dataSourceProjectRead,
+		Schema: map[string]*schema.Schema{
+			"_id": {
+				Type:     schema.TypeString,
+				Optional: true,
+			},
+			"name": {
+				Type:     schema.TypeString,
+				Optional: true,
+			},
+			"tags": {
+				Type:     schema.TypeList,
+				Optional: true,
+				Elem: &schema.Schema{
+					Type: schema.TypeString,
+				},
+			},
+		},
+	}
+}
+
+func dataSourceProjectRead(d *schema.ResourceData, meta interface{}) error {
+
+	client := meta.(*cfClient.Client)
+	var project *cfClient.Project
+	var err error
+
+	if _id, _idOk := d.GetOk("_id"); _idOk {
+		project, err = client.GetProjectByID(_id.(string))
+	} else if name, nameOk := d.GetOk("name"); nameOk {
+		project, err = client.GetProjectByName(name.(string))
+	}
+
+	if err != nil {
+		return err
+	}
+
+	if project == nil {
+		return fmt.Errorf("data.codefresh_project - cannot find project")
+	}
+
+	return mapDataProjectToResource(project, d)
+
+}
+
+func mapDataProjectToResource(project *cfClient.Project, d *schema.ResourceData) error {
+
+	if project == nil || project.ID == "" {
+		return fmt.Errorf("data.codefresh_project - failed to mapDataProjectToResource")
+	}
+	d.SetId(project.ID)
+
+	d.Set("_id", project.ID)
+	d.Set("tags", project.Tags)
+
+	return nil
+}

codefresh/provider.go

@@ -51,6 +51,7 @@ func Provider() *schema.Provider {
 			"codefresh_users":           dataSourceUsers(),
 			"codefresh_registry":        dataSourceRegistry(),
 			"codefresh_pipelines":       dataSourcePipelines(),
+			"codefresh_project":         dataSourceProject(),
 		},
 		ResourcesMap: map[string]*schema.Resource{
 			"codefresh_account":                  resourceAccount(),

docs/data-sources/project.md

@@ -0,0 +1,40 @@
+---
+page_title: "codefresh_project Data Source - terraform-provider-codefresh"
+subcategory: ""
+description: |-
+  This data source retrieves a project by its ID or name.
+---
+
+# codefresh_project (Data Source)
+
+This data source retrieves a project by its ID or name.
+
+## Example Usage
+
+```hcl
+data "codefresh_project" "myapp" {
+  name = "myapp"
+}
+
+
+resource "codefresh_pipeline" "myapp-deploy" {
+
+  name    = "${data.codefresh_project.myapp.projectName}/myapp-deploy"
+
+  ...
+}
+
+```
+
+<!-- schema generated by tfplugindocs -->
+## Schema
+
+### Optional
+
+- `_id` (String)
+- `name` (String)
+- `tags` (List of String)
+
+### Read-Only
+
+- `id` (String) The ID of this resource.

templates/data-sources/project.md.tmpl

@@ -0,0 +1,29 @@
+---
+page_title: "{{.Name}} {{.Type}} - {{.ProviderName}}"
+subcategory: ""
+description: |-
+{{ .Description | plainmarkdown | trimspace | prefixlines "  " }}
+---
+
+# {{.Name}} ({{.Type}})
+
+{{ .Description | trimspace }}
+
+## Example Usage
+
+```hcl
+data "codefresh_project" "myapp" {
+  name = "myapp"
+}
+
+
+resource "codefresh_pipeline" "myapp-deploy" {
+
+  name    = "${data.codefresh_project.myapp.projectName}/myapp-deploy"
+
+  ...
+}
+
+```
+
+{{ .SchemaMarkdown | trimspace }}