Add data source for cloud bucket object (#2657)

<!-- This change is generated by MagicModules. -->
/cc @chrisst

google/data_source_google_storage_bucket_object.go

@@ -0,0 +1,48 @@
+package google
+
+import (
+	"fmt"
+
+	"github.com/hashicorp/terraform/helper/schema"
+)
+
+func dataSourceGoogleStorageBucketObject() *schema.Resource {
+
+	dsSchema := datasourceSchemaFromResourceSchema(resourceStorageBucketObject().Schema)
+
+	addOptionalFieldsToSchema(dsSchema, "bucket")
+	addOptionalFieldsToSchema(dsSchema, "name")
+
+	return &schema.Resource{
+		Read:   dataSourceGoogleStorageBucketObjectRead,
+		Schema: dsSchema,
+	}
+}
+
+func dataSourceGoogleStorageBucketObjectRead(d *schema.ResourceData, meta interface{}) error {
+	config := meta.(*Config)
+	bucket := d.Get("bucket").(string)
+	name := d.Get("name").(string)
+
+	// Using REST apis because the storage go client doesn't support folders
+	url := fmt.Sprintf("https://www.googleapis.com/storage/v1/b/%s/o/%s", bucket, name)
+
+	res, err := sendRequest(config, "GET", url, nil)
+	if err != nil {
+		return fmt.Errorf("Error retrieving storage bucket object: %s", err)
+	}
+
+	d.Set("cache_control", res["cacheControl"])
+	d.Set("content_disposition", res["contentDisposition"])
+	d.Set("content_encoding", res["contentEncoding"])
+	d.Set("content_language", res["contentLanguage"])
+	d.Set("content_type", res["contentType"])
+	d.Set("crc32c", res["crc32c"])
+	d.Set("self_link", res["selfLink"])
+	d.Set("storage_class", res["storageClass"])
+	d.Set("md5hash", res["md5Hash"])
+
+	d.SetId(bucket + "-" + name)
+
+	return nil
+}

google/provider.go

@@ -96,6 +96,7 @@ func Provider() terraform.ResourceProvider {
 			"google_project_services":                dataSourceGoogleProjectServices(),
 			"google_service_account":                 dataSourceGoogleServiceAccount(),
 			"google_service_account_key":             dataSourceGoogleServiceAccountKey(),
+			"google_storage_bucket_object":           dataSourceGoogleStorageBucketObject(),
 			"google_storage_object_signed_url":       dataSourceGoogleSignedUrl(),
 			"google_storage_project_service_account": dataSourceGoogleStorageProjectServiceAccount(),
 		},

google/resource_storage_bucket_object.go

@@ -11,9 +11,10 @@ import (
 
 	"crypto/md5"
 	"encoding/base64"
+	"io/ioutil"
+
 	"google.golang.org/api/googleapi"
 	"google.golang.org/api/storage/v1"
-	"io/ioutil"
 )
 
 func resourceStorageBucketObject() *schema.Resource {
@@ -143,6 +144,11 @@ func resourceStorageBucketObject() *schema.Resource {
 				ForceNew: true,
 				Computed: true,
 			},
+
+			"self_link": &schema.Schema{
+				Type:     schema.TypeString,
+				Computed: true,
+			},
 		},
 	}
 }
@@ -234,6 +240,7 @@ func resourceStorageBucketObjectRead(d *schema.ResourceData, meta interface{}) e
 	d.Set("content_language", res.ContentLanguage)
 	d.Set("content_type", res.ContentType)
 	d.Set("storage_class", res.StorageClass)
+	d.Set("self_link", res.SelfLink)
 
 	d.SetId(objectGetId(res))
 

website/docs/d/datasource_google_cloud_bucket_object.html.markdown

@@ -0,0 +1,60 @@
+---
+layout: "google"
+page_title: "Google: google_storage_bucket_object"
+sidebar_current: "docs-google-datasource-storage-bucket-object"
+description: |-
+  Get information about a Google Cloud Storage bucket object.
+---
+
+
+# google\_storage\_bucket\_object
+
+Gets an existing object inside an existing bucket in Google Cloud Storage service (GCS).
+See [the official documentation](https://cloud.google.com/storage/docs/key-terms#objects)
+and
+[API](https://cloud.google.com/storage/docs/json_api/v1/objects).
+
+
+## Example Usage
+
+Example picture stored within a folder.
+
+```hcl
+data "google_storage_bucket_object" "picture" {
+  name   = "folder/butterfly01.jpg"
+  bucket = "image-store"
+}
+```
+
+## Argument Reference
+
+The following arguments are supported:
+
+* `bucket` - (Required) The name of the containing bucket.
+
+* `name` - (Required) The name of the object.
+
+## Attributes Reference
+
+The following attributes are exported:
+
+* `cache_control` - (Computed) [Cache-Control](https://tools.ietf.org/html/rfc7234#section-5.2)
+    directive to specify caching behavior of object data. If omitted and object is accessible to all anonymous users, the default will be public, max-age=3600
+
+* `content_disposition` - (Computed) [Content-Disposition](https://tools.ietf.org/html/rfc6266) of the object data.
+
+* `content_encoding` - (Computed) [Content-Encoding](https://tools.ietf.org/html/rfc7231#section-3.1.2.2) of the object data.
+
+* `content_language` - (Computed) [Content-Language](https://tools.ietf.org/html/rfc7231#section-3.1.3.2) of the object data.
+
+* `content_type` - (Computed) [Content-Type](https://tools.ietf.org/html/rfc7231#section-3.1.1.5) of the object data. Defaults to "application/octet-stream" or "text/plain; charset=utf-8".
+
+* `crc32c` - (Computed) Base 64 CRC32 hash of the uploaded data.
+
+* `md5hash` - (Computed) Base 64 MD5 hash of the uploaded data.
+
+* `self_link` - (Computed) A url reference to this object.
+
+* `storage_class` - (Computed) The [StorageClass](https://cloud.google.com/storage/docs/storage-classes) of the new bucket object.
+    Supported values include: `MULTI_REGIONAL`, `REGIONAL`, `NEARLINE`, `COLDLINE`. If not provided, this defaults to the bucket's default
+    storage class or to a [standard](https://cloud.google.com/storage/docs/storage-classes#standard) class.

website/docs/r/storage_bucket_object.html.markdown

@@ -69,3 +69,5 @@ exported:
 * `crc32c` - (Computed) Base 64 CRC32 hash of the uploaded data.
 
 * `md5hash` - (Computed) Base 64 MD5 hash of the uploaded data.
+
+* `self_link` - (Computed) A url reference to this object.