Revert "Support Bucket/Object lock operations (#320)"

This reverts commit 2b1ffaf.

src/bucket.ts

@@ -1455,7 +1455,7 @@ class Bucket extends ServiceObject {
   /**
    * @callback GetBucketMetadataCallback
    * @param {?Error} err Request error, if any.
-   * @param {object} metadata The bucket metadata.
+   * @param {object} files The bucket metadata.
    * @param {object} apiResponse The full API response.
    */
   /**
@@ -1586,48 +1586,6 @@ class Bucket extends ServiceObject {
         });
   }
 
-  /**
-   * Lock a previously-defined retention policy. This will prevent changes to
-   * the policy.
-   *
-   * @throws {Error} if a metageneration is not provided.
-   *
-   * @param {Number|String} metageneration The bucket's metageneration. This is
-   *     accesssible from calling {@link File#getMetadata}.
-   * @param {SetBucketMetadataCallback} [callback] Callback function.
-   * @returns {Promise<SetBucketMetadataResponse>}
-   *
-   * @example
-   * const storage = require('@google-cloud/storage')();
-   * const bucket = storage.bucket('albums');
-   *
-   * const metageneration = 2;
-   *
-   * bucket.lock(metageneration, function(err, apiResponse) {});
-   *
-   * //-
-   * // If the callback is omitted, we'll return a Promise.
-   * //-
-   * bucket.lock(metageneration).then(function(data) {
-   *   const apiResponse = data[0];
-   * });
-   */
-  lock(metageneration, callback) {
-    if (!is.number(metageneration) && !is.string(metageneration)) {
-      throw new Error('A metageneration must be provided.');
-    }
-
-    this.request(
-        {
-          method: 'POST',
-          uri: '/lockRetentionPolicy',
-          qs: {
-            ifMetagenerationMatch: metageneration,
-          },
-        },
-        callback);
-  }
-
   /**
    * @typedef {array} MakeBucketPrivateResponse
    * @property {File[]} 0 List of files made private.
@@ -1900,34 +1858,6 @@ class Bucket extends ServiceObject {
     return new Notification(this, id);
   }
 
-  /**
-   * Remove an already-existing retention policy from this bucket, if it is not
-   * locked.
-   *
-   * @param {SetBucketMetadataCallback} [callback] Callback function.
-   * @returns {Promise<SetBucketMetadataResponse>}
-   *
-   * @example
-   * const storage = require('@google-cloud/storage')();
-   * const bucket = storage.bucket('albums');
-   *
-   * bucket.removeRetentionPeriod(function(err, apiResponse) {});
-   *
-   * //-
-   * // If the callback is omitted, we'll return a Promise.
-   * //-
-   * bucket.removeRetentionPeriod().then(function(data) {
-   *   const apiResponse = data[0];
-   * });
-   */
-  removeRetentionPeriod(callback) {
-    this.setMetadata(
-        {
-          retentionPolicy: null,
-        },
-        callback);
-  }
-
   /**
    * Makes request and applies userProject query parameter if necessary.
    *
@@ -2059,13 +1989,6 @@ class Bucket extends ServiceObject {
    * }, function(err, apiResponse) {});
    *
    * //-
-   * // Set the default event-based hold value for new objects in this bucket.
-   * //-
-   * bucket.setMetadata({
-   *   defaultEventBasedHold: true
-   * }, function(err, apiResponse) {});
-   *
-   * //-
    * // If the callback is omitted, we'll return a Promise.
    * //-
    * bucket.setMetadata(metadata).then(function(data) {
@@ -2099,51 +2022,6 @@ class Bucket extends ServiceObject {
         });
   }
 
-  /**
-   * Lock all objects contained in the bucket, based on their creation time. Any
-   * attempt to overwrite or delete objects younger than the retention period
-   * will result in a `PERMISSION_DENIED` error.
-   *
-   * An unlocked retention policy can be modified or removed from the bucket via
-   * {@link File#removeRetentionPeriod} and {@link File#setRetentionPeriod}. A
-   * locked retention policy cannot be removed or shortened in duration for the
-   * lifetime of the bucket. Attempting to remove or decrease period of a locked
-   * retention policy will result in a `PERMISSION_DENIED` error. You can still
-   * increase the policy.
-   *
-   * @param {*} duration In seconds, the minimum retention time for all objects
-   *     contained in this bucket.
-   * @param {SetBucketMetadataCallback} [callback] Callback function.
-   * @returns {Promise<SetBucketMetadataResponse>}
-   *
-   * @example
-   * const storage = require('@google-cloud/storage')();
-   * const bucket = storage.bucket('albums');
-   *
-   * const DURATION_SECONDS = 15780000; // 6 months.
-   *
-   * //-
-   * // Lock the objects in this bucket for 6 months.
-   * //-
-   * bucket.setRetentionPeriod(DURATION_SECONDS, function(err, apiResponse) {});
-   *
-   * //-
-   * // If the callback is omitted, we'll return a Promise.
-   * //-
-   * bucket.setRetentionPeriod(DURATION_SECONDS).then(function(data) {
-   *   const apiResponse = data[0];
-   * });
-   */
-  setRetentionPeriod(duration, callback) {
-    this.setMetadata(
-        {
-          retentionPolicy: {
-            retentionPeriod: duration,
-          },
-        },
-        callback);
-  }
-
   /**
    * @callback SetStorageClassCallback
    * @param {?Error} err Request error, if any.

src/file.ts

@@ -1500,51 +1500,6 @@ class File extends ServiceObject {
     (this.parent as any).get.call(this, options, callback);
   }
 
-  /**
-   * @typedef {array} GetExpirationDateResponse
-   * @property {date} 0 A Date object representing the earliest time this file's
-   *     retention policy will expire.
-   */
-  /**
-   * @callback GetExpirationDateCallback
-   * @param {?Error} err Request error, if any.
-   * @param {date} expirationDate A Date object representing the earliest time
-   *     this file's retention policy will expire.
-   */
-  /**
-   * If this bucket has a retention policy defined, use this method to get a
-   * Date object representing the earliest time this file will expire.
-   *
-   * @param {GetExpirationDateCallback} [callback] Callback function.
-   * @returns {Promise<GetExpirationDateResponse>}
-   *
-   * @example
-   * const storage = require('@google-cloud/storage')();
-   * const myBucket = storage.bucket('my-bucket');
-   *
-   * const file = myBucket.file('my-file');
-   *
-   * file.getExpirationDate(function(err, expirationDate) {
-   *   // expirationDate is a Date object.
-   * });
-   */
-  getExpirationDate(callback) {
-    this.getMetadata((err, metadata, apiResponse) => {
-      if (err) {
-        callback(err, null, apiResponse);
-        return;
-      }
-
-      if (!metadata.retentionExpirationTime) {
-        const error = new Error('An expiration time is not available.');
-        callback(error, null, apiResponse);
-        return;
-      }
-
-      callback(null, new Date(metadata.retentionExpirationTime), apiResponse);
-    });
-  }
-
   /**
    * @typedef {array} GetFileMetadataResponse
    * @property {object} 0 The {@link File} metadata.
@@ -2422,24 +2377,6 @@ class File extends ServiceObject {
    * });
    *
    * //-
-   * // Set a temporary hold on this file from its bucket's retention period
-   * // configuration.
-   * //
-   * file.setMetadata({
-   *   temporaryHold: true
-   * }, function(err, apiResponse) {});
-   *
-   * //-
-   * // Alternatively, you may set a temporary hold. This will follow the same
-   * // behavior as an event-based hold, with the exception that the bucket's
-   * // retention policy will not renew for this file from the time the hold is
-   * // released.
-   * //-
-   * file.setMetadata({
-   *   eventBasedHold: true
-   * }, function(err, apiResponse) {});
-   *
-   * //-
    * // If the callback is omitted, we'll return a Promise.
    * //-
    * file.setMetadata(metadata).then(function(data) {

src/index.ts

@@ -361,17 +361,6 @@ class Storage extends Service {
    * storage.createBucket('new-bucket', metadata, callback);
    *
    * //-
-   * // Create a bucket with a retention policy of 6 months.
-   * //-
-   * const metadata = {
-   *   retentionPolicy: {
-   *     retentionPeriod: 15780000 // 6 months in seconds.
-   *   }
-   * };
-   *
-   * storage.createBucket('new-bucket', metadata, callback);
-   *
-   * //-
    * // Enable versioning on a new bucket.
    * //-
    * const metadata = {