Incremental Reference Screenshot Updates Isn't Working

The docs say “If you need to update references (or test) for just one app-state you can do so by invoking BackstopJS with the following argument: $ backstop reference --filter=<scenario.label>”

The scenario that I want to update is the 10th item (0-index) in my list of scenarios, so I tried running: $ backstop reference --configPath=prod_backstop.json --filter=scenario[10].label. And I’m getting zsh errors as a result: zsh: no matches found: --filter=scenarios[10].label. Note: I initially used scenarios.label (plural) instead of the singular version in the docs, because the config file has the plural; but I also tried the singular scenario.label with the same result.

[garris]

🐥 Hey great! Thanks for the feedback – so glad it’s useful for you!

Cheers.

[angelariggs]

My config file is this (with just a couple of scenarios for a shorter example):

{
  "id": "meyer_prod_config",
  "viewports": [
    {
      "name": "desktop",
      "width": 1200,
      "height": 3000
    },
  ],
  "scenarios": [
    {
      "label": "Item 0: Meyer > Homepage",
      "url": "https://mmt.pantheonsite.io/",
      "hideSelectors": [],
      "removeSelectors": [],
      "selectors": [
        "body"
      ],
      "readyEvent": null,
      "delay": 500,
      "misMatchThreshold" : 0.1
    },
    {
      "label": "Item 1: Meyer > Trustee Landing Page",
      "url": "https://mmt.pantheonsite.io/about/trustees",
      "hideSelectors": [],
      "removeSelectors": [],
      "selectors": [
        "body"
      ],
      "readyEvent": null,
      "delay": 500,
      "misMatchThreshold" : 0.1
    },
    {
      "label": "Item 2: Meyer > Trustee: Toya Fick",
      "url": "https://mmt.pantheonsite.io/about/trustees/toya-fick",
      "hideSelectors": [],
      "removeSelectors": [],
      "selectors": [
        "body"
      ],
      "readyEvent": null,
      "delay": 500,
      "misMatchThreshold" : 0.1
    }
  ],
  "paths": {
    "bitmaps_reference": "backstop_data/prod_reference",
    "bitmaps_test": "backstop_data/prod_test",
    "casper_scripts": "backstop_data/casper_scripts",
    "html_report": "backstop_data/prod_html_report",
    "ci_report": "backstop_data/prod_ci_report"
  },
  "casperFlags": [
    "--ignore-ssl-errors=true",
    "--ssl-protocol=any"
  ],
  "engine": "phantomjs",
  "report": ["browser"],
  "debug": false
}

So if I wanted to re-do the references for Item 1, would I technically run backstop reference --configPath=prod_backstop.json --filter=Item 1: Meyer > Trustee Landing Page? (Which would mean I picked terrible labels 😃 )