Added option to clear complete tasks. Fixes #40. (#43)

* Add clean feature

* Changed clean alias to 'C' (Cap-C)

* @klauscfhq Review Changes

* Fix formatting issues

Author: JoshuaCrocker

cli.js

@@ -67,6 +67,9 @@ const cli = meow(help, {
     move: {
       type: 'boolean',
       alias: 'm'
+    },
+    clear: {
+      type: 'boolean'
     }
   }
 });

index.js

@@ -57,6 +57,10 @@ const taskbookCLI = (input, flags) => {
     return taskbook.moveBoards(input);
   }
 
+  if (flags.clear) {
+    return taskbook.clear();
+  }
+
   taskbook.displayByBoard();
   return taskbook.displayStats();
 };

lib/help.js

@@ -19,6 +19,7 @@ module.exports = `
       --priority, -p     Update priority of task
       --archive, -a      Display archived items
       --restore, -r      Restore items from archive
+      --clear            Delete all checked items
       --help, -h         Display help message
       --version, -v      Display installed version
 
@@ -39,4 +40,5 @@ module.exports = `
       $ tb --list pending coding
       $ tb --archive
       $ tb --restore 4
+      $ tb --clear
 `;

lib/taskbook.js

@@ -502,6 +502,23 @@ class Taskbook {
     this._save(_data);
     render.successPriority(id, level);
   }
+
+  clear() {
+    const ids = [];
+    const {_data} = this;
+
+    Object.keys(_data).forEach(id => {
+      if (_data[id].isComplete) {
+        ids.push(id);
+      }
+    });
+
+    if (ids.length === 0) {
+      return;
+    }
+
+    this.deleteItems(ids);
+  }
 }
 
 module.exports = new Taskbook();