{
  "$schema": "http://json-schema.org/draft-04/schema",
  "title": "VSTS Tasks schema",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "id": {
      "type": "string",
      "description": "A unique guid for this task",
      "pattern": "^[A-Fa-f0-9]{8}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{12}$"
    },
    "name": {
      "type": "string",
      "description": "Name with no spaces",
      "pattern": "^[A-Za-z0-9\\-]+$"
    },
    "friendlyName": {
      "type": "string",
      "description": "Descriptive name (spaces allowed)"
    },
    "description": {
      "type": "string",
      "description": "Detailed description of what your task does"
    },
    "helpMarkDown": {
      "type": "string"
    },
    "author": {
      "type": "string"
    },
    "visibility": {
      "type": "array",
      "items": {
        "type": "string",
        "enum": [
          "Build",
          "Release",
          "Preview"
        ]
      }
    },
    "runsOn": {
      "type": "array",
      "items": {
        "type": "string",
        "enum": [
          "Agent",
          "MachineGroup",
          "Server"
        ]
      }
    },
    "category": {
      "type": "string",
      "description": "Where the task appears in VSTS",
      "enum": [
        "Build",
        "Utility",
        "Test",
        "Package",
        "Deploy"
      ]
    },
    "groups": {
      "type": "array",
      "description": "Describes groups that task properties may be logically grouped by in the UI.",
      "items": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "name",
          "displayName"
        ],
        "properties": {
          "name": {
            "type": "string"
          },
          "displayName": {
            "type": "string"
          },
          "isExpanded": {
            "type": "boolean"
          },
          "tags": {
            "type": "array",
            "items": {
              "type": "string",
              "enum": [
                "Preview"
              ]
            }
          }
        }
      }
    },
    "demands": {
      "type": "array",
      "description": "Allows you to define a list of demands that a build agent requires to run this build task.",
      "items": {
        "type": "string"
      }
    },
    "minimumAgentVersion": {
      "type": "string",
      "pattern": "^\\d+\\.\\d+(\\.\\d+)?$"
    },
    "version": {
      "type": "object",
      "additionalProperties": false,
      "description": "Always update this when you release your task, so that the agents utilise the latest code.",
      "required": [
        "Major",
        "Minor",
        "Patch"
      ],
      "properties": {
        "Major": {
          "type": "number"
        },
        "Minor": {
          "type": "number"
        },
        "Patch": {
          "type": "number"
        }
      }
    },
    "instanceNameFormat": {
      "type": "string",
      "description": "This is how the task will be displayed within the build step list - you can use variable values by using $(variablename)"
    },
    "inputs": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "name",
          "label",
          "type"
        ],
        "properties": {
          "name": {
            "type": "string",
            "description": "The variable name to use to store the user-supplied value",
            "pattern": "^[A-Za-z][A-Za-z0-9]*$"
          },
          "label": {
            "type": "string",
            "description": "The text displayed to the user for the input label"
          },
          "type": {
            "type": "string",
            "description": "The type that dictates the control rendered to the user.",
            "enum": [
              "boolean",
              "connectedService:ServiceType",
              "connectedService:AzureRM",
              "connectedService:Azure",
              "connectedService:Azure:Certificate,UsernamePassword",
              "connectedService:Chef",
              "connectedService:ssh",
              "connectedService:Generic",
              "connectedService:Jenkins",
              "connectedService:servicefabric",
              "filePath",
              "multiLine",
              "pickList",
              "radio",
              "string"
            ]
          },
          "defaultValue": {
            "type": [
              "string",
              "boolean"
            ],
            "description": "The default value to apply to this input."
          },
          "required": {
            "type": "boolean",
            "description": "Whether the input is a required field (default is false).",
            "default": false
          },
          "helpMarkDown": {
            "type": "string",
            "description": "Help to be displayed when hovering over the help icon for the input. To display URLs use the format [Text To Display](http://Url)"
          },
          "groupName": {
            "type": "string",
            "description": "Setting this to the name of a group defined in 'groups' will place the input into that group."
          },
          "visibleRule": {
            "type": "string",
            "description": "Allow's you to define a rule which dictates when the input will be visible to a user, for example \"variableName = value\""
          },
          "properties": {
            "type": "object",
            "properties": {
              "EditableOptions": {
                "type": "string",
                "enum": [
                  "True",
                  "False"
                ]
              }
            }
          },
          "options": {
            "type": "object",
            "additionalProperties": true
          }
        }
      }
    },
    "dataSourceBindings": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": false,
        "properties": {
          "target": {
            "type": "string"
          },
          "endpointId": {
            "type": "string"
          },
          "dataSourceName": {
            "type": "string"
          },
          "parameters": {
            "type": "object"
          },
          "resultTemplate": {
            "type": "string"
          }
        }
      }
    },
    "sourceDefinitions": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": false,
        "properties": {
          "target": {
            "type": "string"
          },
          "endpoint": {
            "type": "string"
          },
          "selector": {
            "type": "string"
          },
          "keySelector": {
            "type": "string"
          },
          "authKey": {
            "type": "string"
          }
        }
      }
    },
    "execution": {
      "type": "object",
      "additionalProperties": false,
      "description": "Execution options for this task",
      "properties": {
        "Node": {
          "$ref": "#/definitions/executionObject"
        },
        "Bash": {
          "$ref": "#/definitions/executionObject"
        },
        "AzurePowerShell": {
          "$ref": "#/definitions/executionObject"
        },
        "PowerShell": {
          "$ref": "#/definitions/executionObject"
        },
        "PowerShell3": {
          "$ref": "#/definitions/executionObject"
        },
        "PowerShellExe": {
          "$ref": "#/definitions/executionObject"
        },
        "Process": {
          "$ref": "#/definitions/executionObject"
        },
        "RM:ManualIntervention": {
          "$ref": "#/definitions/executionObject"
        }
      }
    },
    "messages": {
      "type": "object"
    },
    "$schema": {
      "type": "string"
    }
  },
  "definitions": {
    "executionObject": {
      "type": "object",
      "additionalProperties": true,
      "properties": {
        "target": {
          "type": "string",
          "description": "The target file to be executed. You can use variables here in brackets e.g. $(currentDirectory)\filename.ps1"
        },
        "argumentFormat": {
          "type": "string"
        },
        "workingDirectory": {
          "type": "string",
          "description": "The directory to execute the task from e.g. $(currentDirectory)"
        },
        "modifyEnvironment": {
          "type": [
            "boolean",
            "string"
          ]
        },
        "platforms": {
          "type": "array",
          "items": {
            "enum": [
              "windows"
            ]
          }
        }
      }
    }
  }
}