A Process Palette configuration file created as a sample for a StackOverflow answer.

process-palette.json

{
  "patterns": {
    "P1": {
      "expression": "(path):(line)"
    },
    "P2": {
      "expression": "(path)\\s+(line)",
      "path": "(?:\\/[\\w\\.\\-]+)+"
    }
  },
  "commands": [
    {
      "namespace": "process-palette",
      "action": "source-file",
      "command": "source {fileAbsPath}",
      "arguments": [],
      "cwd": null,
      "inputDialogs": [],
      "env": {},
      "keystroke": null,
      "stream": true,
      "outputTarget": "panel",
      "outputBufferSize": 80000,
      "maxCompleted": 3,
      "autoShowOutput": true,
      "autoHideOutput": true,
      "scrollLockEnabled": false,
      "singular": false,
      "promptToSave": true,
      "saveOption": "none",
      "patterns": [
        "default"
      ],
      "successOutput": "{stdout}",
      "errorOutput": "{stdout}\n{stderr}",
      "fatalOutput": "Failed to execute : {fullCommand}\n{stdout}\n{stderr}",
      "startMessage": null,
      "successMessage": "Executed : {fullCommand}",
      "errorMessage": "Executed : {fullCommand}\nReturned with code {exitStatus}\n{stderr}",
      "fatalMessage": "Failed to execute : {fullCommand}\n{stdout}\n{stderr}",
      "menus": [
        "Shell Commands"
      ],
      "startScript": null,
      "successScript": null,
      "errorScript": null,
      "scriptOnStart": false,
      "scriptOnSuccess": false,
      "scriptOnError": false,
      "notifyOnStart": false,
      "notifyOnSuccess": true,
      "notifyOnError": true,
      "input": null
    },
    {
      "namespace": "process-palette",
      "action": "open-keymap",
      "command": "atom C:/Users/stick/.atom/keymap.cson",
      "arguments": [],
      "cwd": null,
      "inputDialogs": [],
      "env": {},
      "keystroke": null,
      "stream": true,
      "outputTarget": "panel",
      "outputBufferSize": 80000,
      "maxCompleted": 3,
      "autoShowOutput": true,
      "autoHideOutput": true,
      "scrollLockEnabled": false,
      "singular": false,
      "promptToSave": true,
      "saveOption": "none",
      "patterns": [
        "default"
      ],
      "successOutput": "{stdout}",
      "errorOutput": "{stdout}\n{stderr}",
      "fatalOutput": "Failed to execute : {fullCommand}\n{stdout}\n{stderr}",
      "startMessage": null,
      "successMessage": "Executed : {fullCommand}",
      "errorMessage": "Executed : {fullCommand}\nReturned with code {exitStatus}\n{stderr}",
      "fatalMessage": "Failed to execute : {fullCommand}\n{stdout}\n{stderr}",
      "menus": [
        "Shell Commands"
      ],
      "startScript": null,
      "successScript": null,
      "errorScript": null,
      "scriptOnStart": false,
      "scriptOnSuccess": false,
      "scriptOnError": false,
      "notifyOnStart": false,
      "notifyOnSuccess": false,
      "notifyOnError": true,
      "input": null
    }
  ]
}