Salesforce script to retrieve all Dashboards and their folder names

RetrieveAllDashboardNames.cls

//First query all DashboardDolder in the org.
Map<Id,Folder> folderMap = new Map<Id,Folder>([SELECT 	Id,
							DeveloperName,
							NameSpacePrefix
							FROM Folder
							WHERE
							Type = 'Dashboard']);

//Query all Dashboards in the system.
List<Dashboard> dashboardList = [SELECT FolderId,
			          DeveloperName,
			          NameSpacePrefix
			          FROM Dashboard
			          USING SCOPE everything];

List<String> DashboardNames = new List<String>();

for(Dashboard DashboardObj: dashboardList){
	String DashboardName;
	//If a Dashboard is inside the folder then we should get the folder name also.
	//If Dashboard is in public folders then we should prefix with "unfiled$public"
	//We should also check for Managed package Dashboards. If namspace is not blank then prepend foldername and dashboardname followed
	//by '__'

	if(folderMap.containsKey(DashboardObj.FolderId)){
		if(String.isNotBlank(folderMap.get(DashboardObj.FolderId).NameSpacePrefix)){
			DashboardName = folderMap.get(DashboardObj.FolderId).NameSpacePrefix + '__' + folderMap.get(DashboardObj.FolderId).DeveloperName;
		}else{
			DashboardName = folderMap.get(DashboardObj.FolderId).DeveloperName;
		}

		if(String.isNotBlank(DashboardObj.NameSpacePrefix)){
			DashboardName = DashboardName + '/' + DashboardObj.NameSpacePrefix + '__' + DashboardObj.DeveloperName;
		}else{
			DashboardName = DashboardName + '/' + DashboardObj.DeveloperName;
		}

		DashboardNames.add(DashboardName);	
	}else{
		if(String.isNotBlank(DashboardObj.NameSpacePrefix)){
			DashboardName = 'unfiled$public/' + DashboardObj.NameSpacePrefix + '__' + DashboardObj.DeveloperName;
		}else{
			DashboardName = 'unfiled$public/' + DashboardObj.DeveloperName;
		}

		DashboardNames.add(DashboardName);
	}
    
}

System.debug(JSON.serialize(DashboardNames));
//Once all Dashboard names are printed, we can prepare package file and retrieve Dashboards from Org.

I still use mavensmate, though it is officially not supported anymore, and it does not retrieve all the dashboards present in the org. So I use the above code to print dashboard name, including its folder name, and prepare a package.xml file and then use in ANT migration tool to retrieve all dashboards.