Haskell Stack + HSpec tasks for VSCode

tasks.json

{
	"version": "0.1.0",
	"command": "stack",
    "suppressTaskName": true,
	"isShellCommand": true,
	"args": [],
    "tasks": [
      {
          "taskName": "build",
          "args": ["build"],
          "isBuildCommand": true,
          "problemMatcher": [
              {
                  "owner": "stack",
                  "fileLocation": "absolute",
                  "pattern": [
                      {
                          "regexp": "^(.*):(\\d+):(\\d+):$",
                          "file": 1,
                          "line": 2,
                          "column": 3
                      },
                      {
                          "regexp": "^\\s+(.*)$",
                          "message": 1
                      }
                  ]
              },
              {
                  "owner": "stack",
                  "fileLocation": "absolute",
                  "pattern": [
                      {
                          "regexp": "^(.*):(\\d+):(\\d+):\\s+(Warning):\\s+(.*)$",
                          "file": 1,
                          "line": 2,
                          "column": 3,
                          "severity": 4,
                          "message": 5
                      }
                  ]
              },
              {
                  "owner": "stack",
                  "fileLocation": "absolute",
                  "pattern": [
                      {
                          "regexp": "^(.*):(\\d+):(\\d+):\\s+(Warning|Error):$",
                          "file": 1,
                          "line": 2,
                          "column": 3,
                          "severity": 4
                      },
                      {
                          "regexp": "^\\s+(.*)$",
                          "message": 1
                      }
                  ]
              }
          ]
      },
      {
          "taskName": "clean",
          "args": ["clean"],
          "isBuildCommand": false,
          "isTestCommand": false
      },
      {
          "taskName": "test",
          "args": ["test"],
          "isTestCommand": true,
          "problemMatcher": [
              {
                  "owner": "hspec",
                  "fileLocation": ["relative", "${workspaceRoot}"],
                  "pattern": [
                      {
                          "regexp": "^\\s+(.*):(\\d+):",
                          "file": 1,
                          "line": 2
                      },
                      {
                          "regexp": "^\\s+\\d+\\)\\s+(.*)",
                          "message": 1
                      }
                  ]
              }
          ]
      }
    ]
}