pidgin/nest

Adds site wide visual regression tool

2019-03-20, Jason
98982dc7e0ce
Parents 2e12c8034c19
Children f12f4f510651
Adds site wide visual regression tool
5 files changed, 1129 insertions(+), 1 deletions(-)
  • +2 -1
    .hgignore
  • +952 -0
    package-lock.json
  • +2 -0
    package.json
  • +6 -0
    readme.md
  • +167 -0
    tools/visual-diff.js
    • --- a/.hgignore Tue Mar 19 05:13:02 2019 +0000
    +++ b/.hgignore Wed Mar 20 04:12:58 2019 +0000
    @@ -3,4 +3,5 @@
    public/
    node_modules/
    docker-compose.override.yml
    -
    +differencify_reports
    +tools/diff-config.json
    --- a/package-lock.json Tue Mar 19 05:13:02 2019 +0000
    +++ b/package-lock.json Wed Mar 20 04:12:58 2019 +0000
    @@ -22,6 +22,25 @@
    "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
    "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q=="
    },
    + "agent-base": {
    + "version": "4.2.1",
    + "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.2.1.tgz",
    + "integrity": "sha512-JVwXMr9nHYTUXsBFKUqhJwvlcYU/blreOEUkhNR2eXZIvwd+c+o5V4MgDPKWnMS/56awN3TRzIP+KoPn+roQtg==",
    + "requires": {
    + "es6-promisify": "^5.0.0"
    + }
    + },
    + "ajv": {
    + "version": "6.10.0",
    + "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.0.tgz",
    + "integrity": "sha512-nffhOpkymDECQyR0mnsUtoCE8RlX38G0rYP+wgLWFyZuUyuuojSSvi/+euOiQBIn63whYwYVIIH1TvE3tu4OEg==",
    + "requires": {
    + "fast-deep-equal": "^2.0.1",
    + "fast-json-stable-stringify": "^2.0.0",
    + "json-schema-traverse": "^0.4.1",
    + "uri-js": "^4.2.2"
    + }
    + },
    "ansi-styles": {
    "version": "3.2.1",
    "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
    @@ -38,11 +57,62 @@
    "sprintf-js": "~1.0.2"
    }
    },
    + "asn1": {
    + "version": "0.2.4",
    + "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.4.tgz",
    + "integrity": "sha512-jxwzQpLQjSmWXgwaCZE9Nz+glAG01yF1QnWgbhGwHI5A6FRIEY6IVqtHhIepHqI7/kyEyQEagBC5mBEFlIYvdg==",
    + "requires": {
    + "safer-buffer": "~2.1.0"
    + }
    + },
    + "assert-plus": {
    + "version": "1.0.0",
    + "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
    + "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU="
    + },
    + "async-limiter": {
    + "version": "1.0.0",
    + "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.0.tgz",
    + "integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg=="
    + },
    + "asynckit": {
    + "version": "0.4.0",
    + "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
    + "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k="
    + },
    + "aws-sign2": {
    + "version": "0.7.0",
    + "resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.7.0.tgz",
    + "integrity": "sha1-tG6JCTSpWR8tL2+G1+ap8bP+dqg="
    + },
    + "aws4": {
    + "version": "1.8.0",
    + "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.8.0.tgz",
    + "integrity": "sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ=="
    + },
    "balanced-match": {
    "version": "1.0.0",
    "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
    "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
    },
    + "bcrypt-pbkdf": {
    + "version": "1.0.2",
    + "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz",
    + "integrity": "sha1-pDAdOJtqQ/m2f/PKEaP2Y342Dp4=",
    + "requires": {
    + "tweetnacl": "^0.14.3"
    + }
    + },
    + "bignumber.js": {
    + "version": "2.4.0",
    + "resolved": "https://registry.npmjs.org/bignumber.js/-/bignumber.js-2.4.0.tgz",
    + "integrity": "sha1-g4qZLan51zfg9LLbC+YrsJ3Qxeg="
    + },
    + "bmp-js": {
    + "version": "0.0.3",
    + "resolved": "https://registry.npmjs.org/bmp-js/-/bmp-js-0.0.3.tgz",
    + "integrity": "sha1-ZBE+nHzxICs3btYHvzBibr5XsYo="
    + },
    "boolbase": {
    "version": "1.0.0",
    "resolved": "https://registry.npmjs.org/boolbase/-/boolbase-1.0.0.tgz",
    @@ -57,6 +127,21 @@
    "concat-map": "0.0.1"
    }
    },
    + "buffer-equal": {
    + "version": "0.0.1",
    + "resolved": "https://registry.npmjs.org/buffer-equal/-/buffer-equal-0.0.1.tgz",
    + "integrity": "sha1-kbx0sR6kBbyRa8aqkI+q+ltKrEs="
    + },
    + "buffer-from": {
    + "version": "1.1.1",
    + "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.1.tgz",
    + "integrity": "sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A=="
    + },
    + "caseless": {
    + "version": "0.12.0",
    + "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz",
    + "integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw="
    + },
    "chalk": {
    "version": "2.4.2",
    "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
    @@ -67,6 +152,11 @@
    "supports-color": "^5.3.0"
    }
    },
    + "check-types": {
    + "version": "7.4.0",
    + "resolved": "https://registry.npmjs.org/check-types/-/check-types-7.4.0.tgz",
    + "integrity": "sha512-YbulWHdfP99UfZ73NcUDlNJhEIDgm9Doq9GhpyXbF+7Aegi3CVV7qqMCKTTqJxlvEvnQBp9IA+dxsGN6xK/nSg=="
    + },
    "coa": {
    "version": "2.0.2",
    "resolved": "https://registry.npmjs.org/coa/-/coa-2.0.2.tgz",
    @@ -95,6 +185,14 @@
    "resolved": "https://registry.npmjs.org/colors/-/colors-1.1.2.tgz",
    "integrity": "sha1-FopHAXVran9RoSzgyXv6KMCE7WM="
    },
    + "combined-stream": {
    + "version": "1.0.7",
    + "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.7.tgz",
    + "integrity": "sha512-brWl9y6vOB1xYPZcpZde3N9zDByXTosAeMDo4p1wzo6UMOX4vumB+TP1RZ76sfE6Md68Q0NJSrE/gbezd4Ul+w==",
    + "requires": {
    + "delayed-stream": "~1.0.0"
    + }
    + },
    "commander": {
    "version": "2.19.0",
    "resolved": "https://registry.npmjs.org/commander/-/commander-2.19.0.tgz",
    @@ -105,6 +203,17 @@
    "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
    "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
    },
    + "concat-stream": {
    + "version": "1.6.2",
    + "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-1.6.2.tgz",
    + "integrity": "sha512-27HBghJxjiZtIk3Ycvn/4kbJk/1uZuJFfuPEns6LaEvpvG1f0hTea8lilrouyo9mVc2GWdcEZ8OLoGmSADlrCw==",
    + "requires": {
    + "buffer-from": "^1.0.0",
    + "inherits": "^2.0.3",
    + "readable-stream": "^2.2.2",
    + "typedarray": "^0.0.6"
    + }
    + },
    "config-chain": {
    "version": "1.1.12",
    "resolved": "https://registry.npmjs.org/config-chain/-/config-chain-1.1.12.tgz",
    @@ -114,6 +223,11 @@
    "proto-list": "~1.2.1"
    }
    },
    + "core-util-is": {
    + "version": "1.0.2",
    + "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
    + "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
    + },
    "css-select": {
    "version": "2.0.2",
    "resolved": "https://registry.npmjs.org/css-select/-/css-select-2.0.2.tgz",
    @@ -168,6 +282,22 @@
    }
    }
    },
    + "dashdash": {
    + "version": "1.14.1",
    + "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz",
    + "integrity": "sha1-hTz6D3y+L+1d4gMmuN1YEDX24vA=",
    + "requires": {
    + "assert-plus": "^1.0.0"
    + }
    + },
    + "debug": {
    + "version": "4.1.1",
    + "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
    + "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
    + "requires": {
    + "ms": "^2.1.1"
    + }
    + },
    "define-properties": {
    "version": "1.1.3",
    "resolved": "https://registry.npmjs.org/define-properties/-/define-properties-1.1.3.tgz",
    @@ -176,6 +306,26 @@
    "object-keys": "^1.0.12"
    }
    },
    + "delayed-stream": {
    + "version": "1.0.0",
    + "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
    + "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk="
    + },
    + "differencify": {
    + "version": "1.5.3",
    + "resolved": "https://registry.npmjs.org/differencify/-/differencify-1.5.3.tgz",
    + "integrity": "sha512-QdUlxG59aHvJTReMNiIuTES7FdqIucsBQ5szyh5H2exc5rSk47ZZAcEpKmVeXf3j3JgjT73U4RFx2ob376qTrg==",
    + "requires": {
    + "chalk": "^2.4.1",
    + "check-types": "^7.4.0",
    + "fs": "0.0.2",
    + "jimp": "^0.2.28",
    + "mockeer": "0.0.3",
    + "pkg-dir": "2.0.0",
    + "puppeteer": "^1.8.0",
    + "type-detect": "^4.0.8"
    + }
    + },
    "dom-serializer": {
    "version": "0.1.0",
    "resolved": "https://registry.npmjs.org/dom-serializer/-/dom-serializer-0.1.0.tgz",
    @@ -192,6 +342,11 @@
    }
    }
    },
    + "dom-walk": {
    + "version": "0.1.1",
    + "resolved": "https://registry.npmjs.org/dom-walk/-/dom-walk-0.1.1.tgz",
    + "integrity": "sha1-ZyIm3HTI95mtNTB9+TaroRrNYBg="
    + },
    "domelementtype": {
    "version": "1.3.1",
    "resolved": "https://registry.npmjs.org/domelementtype/-/domelementtype-1.3.1.tgz",
    @@ -206,6 +361,15 @@
    "domelementtype": "1"
    }
    },
    + "ecc-jsbn": {
    + "version": "0.1.2",
    + "resolved": "https://registry.npmjs.org/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz",
    + "integrity": "sha1-OoOpBOVDUyh4dMVkt1SThoSamMk=",
    + "requires": {
    + "jsbn": "~0.1.0",
    + "safer-buffer": "^2.1.0"
    + }
    + },
    "editorconfig": {
    "version": "0.15.2",
    "resolved": "https://registry.npmjs.org/editorconfig/-/editorconfig-0.15.2.tgz",
    @@ -247,6 +411,26 @@
    "is-symbol": "^1.0.2"
    }
    },
    + "es6-promise": {
    + "version": "3.3.1",
    + "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-3.3.1.tgz",
    + "integrity": "sha1-oIzd6EzNvzTQJ6FFG8kdS80ophM="
    + },
    + "es6-promisify": {
    + "version": "5.0.0",
    + "resolved": "https://registry.npmjs.org/es6-promisify/-/es6-promisify-5.0.0.tgz",
    + "integrity": "sha1-UQnWLz5W6pZ8S2NQWu8IKRyKUgM=",
    + "requires": {
    + "es6-promise": "^4.0.3"
    + },
    + "dependencies": {
    + "es6-promise": {
    + "version": "4.2.6",
    + "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-4.2.6.tgz",
    + "integrity": "sha512-aRVgGdnmW2OiySVPUC9e6m+plolMAJKjZnQlCwNSuK5yQ0JN61DZSO1X1Ufd1foqWRAlig0rhduTCHe7sVtK5Q=="
    + }
    + }
    + },
    "escape-string-regexp": {
    "version": "1.0.5",
    "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
    @@ -257,6 +441,116 @@
    "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.1.tgz",
    "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A=="
    },
    + "exif-parser": {
    + "version": "0.1.12",
    + "resolved": "https://registry.npmjs.org/exif-parser/-/exif-parser-0.1.12.tgz",
    + "integrity": "sha1-WKnS1ywCwfbwKg70qRZicrd2CSI="
    + },
    + "extend": {
    + "version": "3.0.2",
    + "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.2.tgz",
    + "integrity": "sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g=="
    + },
    + "extract-zip": {
    + "version": "1.6.7",
    + "resolved": "https://registry.npmjs.org/extract-zip/-/extract-zip-1.6.7.tgz",
    + "integrity": "sha1-qEC0uK9kAyZMjbV/Txp0Mz74H+k=",
    + "requires": {
    + "concat-stream": "1.6.2",
    + "debug": "2.6.9",
    + "mkdirp": "0.5.1",
    + "yauzl": "2.4.1"
    + },
    + "dependencies": {
    + "debug": {
    + "version": "2.6.9",
    + "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
    + "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
    + "requires": {
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    + }
    + },
    + "ms": {
    + "version": "2.0.0",
    + "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
    + "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
    + }
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    + },
    + "extsprintf": {
    + "version": "1.3.0",
    + "resolved": "https://registry.npmjs.org/extsprintf/-/extsprintf-1.3.0.tgz",
    + "integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU="
    + },
    + "fast-deep-equal": {
    + "version": "2.0.1",
    + "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz",
    + "integrity": "sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk="
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    + "fast-json-stable-stringify": {
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    + "resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz",
    + "integrity": "sha1-1RQsDK7msRifh9OnYREGT4bIu/I="
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    + "integrity": "sha1-JXoHg4TR24CHvESdEH1SpSZyuek="
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    + "filename-reserved-regex": {
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    + "for-each": {
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    + "requires": {
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    + }
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    + "forever-agent": {
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    + "integrity": "sha1-+8cfDEGt6zf5bFd60e1C2P2sypE="
    + },
    + "form-data": {
    + "version": "2.3.3",
    + "resolved": "https://registry.npmjs.org/form-data/-/form-data-2.3.3.tgz",
    + "integrity": "sha512-1lLKB2Mu3aGP1Q/2eCOx0fNbRMe7XdwktwOruhfqqd0rIJWwN4Dh+E3hrPSlDCXnSR7UtZ1N38rVXm+6+MEhJQ==",
    + "requires": {
    + "asynckit": "^0.4.0",
    + "combined-stream": "^1.0.6",
    + "mime-types": "^2.1.12"
    + }
    + },
    "front-matter": {
    "version": "3.0.1",
    "resolved": "https://registry.npmjs.org/front-matter/-/front-matter-3.0.1.tgz",
    @@ -266,6 +560,11 @@
    "js-yaml": "^3.10.0"
    }
    },
    + "fs": {
    + "version": "0.0.2",
    + "resolved": "https://registry.npmjs.org/fs/-/fs-0.0.2.tgz",
    + "integrity": "sha1-4fJE7zkzwbKmS9R5kTYGDQ9ZFPg="
    + },
    "fs.realpath": {
    "version": "1.0.0",
    "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
    @@ -276,6 +575,14 @@
    "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
    "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A=="
    },
    + "getpass": {
    + "version": "0.1.7",
    + "resolved": "https://registry.npmjs.org/getpass/-/getpass-0.1.7.tgz",
    + "integrity": "sha1-Xv+OPmhNVprkyysSgmBOi6YhSfo=",
    + "requires": {
    + "assert-plus": "^1.0.0"
    + }
    + },
    "glob": {
    "version": "7.1.3",
    "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.3.tgz",
    @@ -289,6 +596,29 @@
    "path-is-absolute": "^1.0.0"
    }
    },
    + "global": {
    + "version": "4.3.2",
    + "resolved": "https://registry.npmjs.org/global/-/global-4.3.2.tgz",
    + "integrity": "sha1-52mJJopsdMOJCLEwWxD8DjlOnQ8=",
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    + "progress": "^2.0.1",
    + "proxy-from-env": "^1.0.0",
    + "rimraf": "^2.6.1",
    + "ws": "^6.1.0"
    + },
    + "dependencies": {
    + "mime": {
    + "version": "2.4.0",
    + "resolved": "https://registry.npmjs.org/mime/-/mime-2.4.0.tgz",
    + "integrity": "sha512-ikBcWwyqXQSHKtciCcctu9YfPbFYZ4+gbHEmE0Q8jzcTYQg5dHCr3g2wwAZjPoJfQVXZq6KXAjpXOTf5/cjT7w=="
    + }
    + }
    + },
    "q": {
    "version": "1.5.1",
    "resolved": "https://registry.npmjs.org/q/-/q-1.5.1.tgz",
    "integrity": "sha1-fjL3W0E4EpHQRhHxvxQQmsAGUdc="
    },
    + "qs": {
    + "version": "6.5.2",
    + "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.2.tgz",
    + "integrity": "sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA=="
    + },
    + "querystringify": {
    + "version": "2.1.0",
    + "resolved": "https://registry.npmjs.org/querystringify/-/querystringify-2.1.0.tgz",
    + "integrity": "sha512-sluvZZ1YiTLD5jsqZcDmFyV2EwToyXZBfpoVOmktMmW+VEnhgakFHnasVph65fOjGPTWN0Nw3+XQaSeMayr0kg=="
    + },
    + "read-chunk": {
    + "version": "1.0.1",
    + "resolved": "https://registry.npmjs.org/read-chunk/-/read-chunk-1.0.1.tgz",
    + "integrity": "sha1-X2jKswfmY/GZk1J9m1icrORmEZQ="
    + },
    + "readable-stream": {
    + "version": "2.3.6",
    + "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
    + "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
    + "requires": {
    + "core-util-is": "~1.0.0",
    + "inherits": "~2.0.3",
    + "isarray": "~1.0.0",
    + "process-nextick-args": "~2.0.0",
    + "safe-buffer": "~5.1.1",
    + "string_decoder": "~1.1.1",
    + "util-deprecate": "~1.0.1"
    + }
    + },
    + "request": {
    + "version": "2.88.0",
    + "resolved": "https://registry.npmjs.org/request/-/request-2.88.0.tgz",
    + "integrity": "sha512-NAqBSrijGLZdM0WZNsInLJpkJokL72XYjUpnB0iwsRgxh7dB6COrHnTBNwN0E+lHDAJzu7kLAkDeY08z2/A0hg==",
    + "requires": {
    + "aws-sign2": "~0.7.0",
    + "aws4": "^1.8.0",
    + "caseless": "~0.12.0",
    + "combined-stream": "~1.0.6",
    + "extend": "~3.0.2",
    + "forever-agent": "~0.6.1",
    + "form-data": "~2.3.2",
    + "har-validator": "~5.1.0",
    + "http-signature": "~1.2.0",
    + "is-typedarray": "~1.0.0",
    + "isstream": "~0.1.2",
    + "json-stringify-safe": "~5.0.1",
    + "mime-types": "~2.1.19",
    + "oauth-sign": "~0.9.0",
    + "performance-now": "^2.1.0",
    + "qs": "~6.5.2",
    + "safe-buffer": "^5.1.2",
    + "tough-cookie": "~2.4.3",
    + "tunnel-agent": "^0.6.0",
    + "uuid": "^3.3.2"
    + }
    + },
    + "requires-port": {
    + "version": "1.0.0",
    + "resolved": "https://registry.npmjs.org/requires-port/-/requires-port-1.0.0.tgz",
    + "integrity": "sha1-kl0mAdOaxIXgkc8NpcbmlNw9yv8="
    + },
    + "rimraf": {
    + "version": "2.6.3",
    + "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.6.3.tgz",
    + "integrity": "sha512-mwqeW5XsA2qAejG46gYdENaxXjx9onRNCfn7L0duuP4hCuTIi/QO7PDK07KJfp1d+izWPrzEJDcSqBa0OZQriA==",
    + "requires": {
    + "glob": "^7.1.3"
    + }
    + },
    + "safe-buffer": {
    + "version": "5.1.2",
    + "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
    + "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
    + },
    + "safer-buffer": {
    + "version": "2.1.2",
    + "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
    + "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg=="
    + },
    "sax": {
    "version": "1.2.4",
    "resolved": "https://registry.npmjs.org/sax/-/sax-1.2.4.tgz",
    @@ -522,11 +1271,66 @@
    "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
    "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw="
    },
    + "sshpk": {
    + "version": "1.16.1",
    + "resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.16.1.tgz",
    + "integrity": "sha512-HXXqVUq7+pcKeLqqZj6mHFUMvXtOJt1uoUx09pFW6011inTMxqI8BA8PM95myrIyyKwdnzjdFjLiE6KBPVtJIg==",
    + "requires": {
    + "asn1": "~0.2.3",
    + "assert-plus": "^1.0.0",
    + "bcrypt-pbkdf": "^1.0.0",
    + "dashdash": "^1.12.0",
    + "ecc-jsbn": "~0.1.1",
    + "getpass": "^0.1.1",
    + "jsbn": "~0.1.0",
    + "safer-buffer": "^2.0.2",
    + "tweetnacl": "~0.14.0"
    + }
    + },
    "stable": {
    "version": "0.1.8",
    "resolved": "https://registry.npmjs.org/stable/-/stable-0.1.8.tgz",
    "integrity": "sha512-ji9qxRnOVfcuLDySj9qzhGSEFVobyt1kIOSkj1qZzYLzq7Tos/oUUWvotUPQLlrsidqsK6tBH89Bc9kL5zHA6w=="
    },
    + "stream-to": {
    + "version": "0.2.2",
    + "resolved": "https://registry.npmjs.org/stream-to/-/stream-to-0.2.2.tgz",
    + "integrity": "sha1-hDBgmNhf25kLn6MAsbPM9V6O8B0="
    + },
    + "stream-to-buffer": {
    + "version": "0.1.0",
    + "resolved": "https://registry.npmjs.org/stream-to-buffer/-/stream-to-buffer-0.1.0.tgz",
    + "integrity": "sha1-JnmdkDqyAlyb1VCsRxcbAPjdgKk=",
    + "requires": {
    + "stream-to": "~0.2.0"
    + }
    + },
    + "string.prototype.trim": {
    + "version": "1.1.2",
    + "resolved": "https://registry.npmjs.org/string.prototype.trim/-/string.prototype.trim-1.1.2.tgz",
    + "integrity": "sha1-0E3iyJ4Tf019IG8Ia17S+ua+jOo=",
    + "requires": {
    + "define-properties": "^1.1.2",
    + "es-abstract": "^1.5.0",
    + "function-bind": "^1.0.2"
    + }
    + },
    + "string_decoder": {
    + "version": "1.1.1",
    + "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
    + "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
    + "requires": {
    + "safe-buffer": "~5.1.0"
    + }
    + },
    + "strip-outer": {
    + "version": "1.0.1",
    + "resolved": "https://registry.npmjs.org/strip-outer/-/strip-outer-1.0.1.tgz",
    + "integrity": "sha512-k55yxKHwaXnpYGsOzg4Vl8+tDrWylxDEpknGjhTiZB8dFRU5rTo9CAzeycivxV3s+zlTKwrs6WxMxR95n26kwg==",
    + "requires": {
    + "escape-string-regexp": "^1.0.2"
    + }
    + },
    "supports-color": {
    "version": "5.5.0",
    "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
    @@ -556,11 +1360,93 @@
    "util.promisify": "~1.0.0"
    }
    },
    + "tinycolor2": {
    + "version": "1.4.1",
    + "resolved": "https://registry.npmjs.org/tinycolor2/-/tinycolor2-1.4.1.tgz",
    + "integrity": "sha1-9PrTM0R7wLB9TcjpIJ2POaisd+g="
    + },
    + "tough-cookie": {
    + "version": "2.4.3",
    + "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.4.3.tgz",
    + "integrity": "sha512-Q5srk/4vDM54WJsJio3XNn6K2sCG+CQ8G5Wz6bZhRZoAe/+TxjWB/GlFAnYEbkYVlON9FMk/fE3h2RLpPXo4lQ==",
    + "requires": {
    + "psl": "^1.1.24",
    + "punycode": "^1.4.1"
    + },
    + "dependencies": {
    + "punycode": {
    + "version": "1.4.1",
    + "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz",
    + "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4="
    + }
    + }
    + },
    + "trim-repeated": {
    + "version": "1.0.0",
    + "resolved": "https://registry.npmjs.org/trim-repeated/-/trim-repeated-1.0.0.tgz",
    + "integrity": "sha1-42RqLqTokTEr9+rObPsFOAvAHCE=",
    + "requires": {
    + "escape-string-regexp": "^1.0.2"
    + }
    + },
    + "tunnel-agent": {
    + "version": "0.6.0",
    + "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
    + "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
    + "requires": {
    + "safe-buffer": "^5.0.1"
    + }
    + },
    + "tweetnacl": {
    + "version": "0.14.5",
    + "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
    + "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q="
    + },
    + "type-detect": {
    + "version": "4.0.8",
    + "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
    + "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g=="
    + },
    + "typedarray": {
    + "version": "0.0.6",
    + "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
    + "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c="
    + },
    "unquote": {
    "version": "1.1.1",
    "resolved": "https://registry.npmjs.org/unquote/-/unquote-1.1.1.tgz",
    "integrity": "sha1-j97XMk7G6IoP+LkF58CYzcCG1UQ="
    },
    + "uri-js": {
    + "version": "4.2.2",
    + "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.2.2.tgz",
    + "integrity": "sha512-KY9Frmirql91X2Qgjry0Wd4Y+YTdrdZheS8TFwvkbLWf/G5KNJDCh6pKL5OZctEW4+0Baa5idK2ZQuELRwPznQ==",
    + "requires": {
    + "punycode": "^2.1.0"
    + }
    + },
    + "url-parse": {
    + "version": "1.4.4",
    + "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.4.4.tgz",
    + "integrity": "sha512-/92DTTorg4JjktLNLe6GPS2/RvAd/RGr6LuktmWSMLEOa6rjnlrFXNgSbSmkNvCoL2T028A0a1JaJLzRMlFoHg==",
    + "requires": {
    + "querystringify": "^2.0.0",
    + "requires-port": "^1.0.0"
    + }
    + },
    + "url-regex": {
    + "version": "3.2.0",
    + "resolved": "https://registry.npmjs.org/url-regex/-/url-regex-3.2.0.tgz",
    + "integrity": "sha1-260eDJ4p4QXdCx8J9oYvf9tIJyQ=",
    + "requires": {
    + "ip-regex": "^1.0.1"
    + }
    + },
    + "util-deprecate": {
    + "version": "1.0.2",
    + "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
    + "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
    + },
    "util.promisify": {
    "version": "1.0.0",
    "resolved": "https://registry.npmjs.org/util.promisify/-/util.promisify-1.0.0.tgz",
    @@ -570,15 +1456,81 @@
    "object.getownpropertydescriptors": "^2.0.3"
    }
    },
    + "uuid": {
    + "version": "3.3.2",
    + "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
    + "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA=="
    + },
    + "verror": {
    + "version": "1.10.0",
    + "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
    + "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
    + "requires": {
    + "assert-plus": "^1.0.0",
    + "core-util-is": "1.0.2",
    + "extsprintf": "^1.2.0"
    + }
    + },
    "wrappy": {
    "version": "1.0.2",
    "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
    "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
    },
    + "ws": {
    + "version": "6.2.0",
    + "resolved": "https://registry.npmjs.org/ws/-/ws-6.2.0.tgz",
    + "integrity": "sha512-deZYUNlt2O4buFCa3t5bKLf8A7FPP/TVjwOeVNpw818Ma5nk4MLXls2eoEGS39o8119QIYxTrTDoPQ5B/gTD6w==",
    + "requires": {
    + "async-limiter": "~1.0.0"
    + }
    + },
    + "xhr": {
    + "version": "2.5.0",
    + "resolved": "https://registry.npmjs.org/xhr/-/xhr-2.5.0.tgz",
    + "integrity": "sha512-4nlO/14t3BNUZRXIXfXe+3N6w3s1KoxcJUUURctd64BLRe67E4gRwp4PjywtDY72fXpZ1y6Ch0VZQRY/gMPzzQ==",
    + "requires": {
    + "global": "~4.3.0",
    + "is-function": "^1.0.1",
    + "parse-headers": "^2.0.0",
    + "xtend": "^4.0.0"
    + }
    + },
    + "xml-parse-from-string": {
    + "version": "1.0.1",
    + "resolved": "https://registry.npmjs.org/xml-parse-from-string/-/xml-parse-from-string-1.0.1.tgz",
    + "integrity": "sha1-qQKekp09vN7RafPG4oI42VpdWig="
    + },
    + "xml2js": {
    + "version": "0.4.19",
    + "resolved": "https://registry.npmjs.org/xml2js/-/xml2js-0.4.19.tgz",
    + "integrity": "sha512-esZnJZJOiJR9wWKMyuvSE1y6Dq5LCuJanqhxslH2bxM6duahNZ+HMpCLhBQGZkbX6xRf8x1Y2eJlgt2q3qo49Q==",
    + "requires": {
    + "sax": ">=0.6.0",
    + "xmlbuilder": "~9.0.1"
    + }
    + },
    + "xmlbuilder": {
    + "version": "9.0.7",
    + "resolved": "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-9.0.7.tgz",
    + "integrity": "sha1-Ey7mPS7FVlxVfiD0wi35rKaGsQ0="
    + },
    + "xtend": {
    + "version": "4.0.1",
    + "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
    + "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68="
    + },
    "yallist": {
    "version": "2.1.2",
    "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
    "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI="
    + },
    + "yauzl": {
    + "version": "2.4.1",
    + "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.4.1.tgz",
    + "integrity": "sha1-lSj0QtqxsihOWLQ3m7GU4i4MQAU=",
    + "requires": {
    + "fd-slicer": "~1.0.1"
    + }
    }
    }
    }
    --- a/package.json Tue Mar 19 05:13:02 2019 +0000
    +++ b/package.json Wed Mar 20 04:12:58 2019 +0000
    @@ -1,5 +1,6 @@
    {
    "dependencies": {
    + "differencify": "^1.5.3",
    "js-beautify": "^1.8.9",
    "svgo": "^1.1.1"
    },
    @@ -7,6 +8,7 @@
    "front-matter": "^3.0.1"
    },
    "scripts": {
    + "regression":"node tools/visual-diff.js",
    "tidy": "node tools/pre-prod"
    }
    }
    --- a/readme.md Tue Mar 19 05:13:02 2019 +0000
    +++ b/readme.md Wed Mar 20 04:12:58 2019 +0000
    @@ -39,3 +39,9 @@
    ## Hugo config
    To disable **Copy Code to Clipboard** the `disableInlineCopyToClipBoard` switch can be used either in **config** `[params]` **or** in the front matter of the individual page
    +
    +## Tools
    +
    +* **Visual Regression**
    + 1. [Run dev server](#Developing-Docs)
    + 1. To run the visual diff tool call `node tools/visual-diff.js` or `npm run regression`
    \ No newline at end of file
    --- /dev/null Thu Jan 01 00:00:00 1970 +0000
    +++ b/tools/visual-diff.js Wed Mar 20 04:12:58 2019 +0000
    @@ -0,0 +1,167 @@
    +let config
    +
    +try {
    + config = require('./diff-config.json')
    +} catch (e) {
    + config = {}
    +}
    +
    +const {
    + dir = 'http://localhost:1313',
    + waitToScreenShotTime = 500,
    + additionalPages = ['404.html'],
    + verbose = false,
    + maxJobs = 15,
    +} = config
    +
    +console.log('Config being used', {
    + dir,
    + waitToScreenShotTime,
    + additionalPages,
    + verbose,
    + maxJobs,
    +})
    +
    +const fetch = require(/^http:/.test(dir) ? 'http' : 'https')
    +
    +const Differencify = require('differencify')
    +const differencify = new Differencify()
    +
    +// WARNING: Chnaging these values may invalidate previous snapshots
    +const viewports = Object.freeze({
    + phone: Object.freeze({ width: 320, height: 1000 }),
    + tablet: Object.freeze({ width: 768, height: 4000 }),
    + massive: Object.freeze({ width: 1440, height: 4000 }),
    +})
    +
    +const nonIdentical = []
    +
    +;(async () => {
    + const stack = []
    + const viewportKeys = Object.keys(viewports)
    + // Map the target pages
    + const pages = (await fetch_json(`${dir}/index.json`))
    + .map(u => u.uri)
    + .concat(additionalPages.map(p => `${dir}/${p}`))
    + .sort()
    +
    + console.log(`Diffing these pages:`)
    +
    + for (const pagePath of pages) {
    + console.log('\t' + pagePath.trim().replace(dir, ''))
    +
    + for (const viewportName of viewportKeys) {
    + stack.push(() => checkPage(pagePath, viewportName))
    + }
    + }
    +
    + await differencify.launchBrowser({ timeout: 0 })
    + await concurrence(stack)
    + await differencify.cleanup()
    +
    + if (nonIdentical.length) {
    + console.log(`Pages that have changed:`)
    + console.log(
    + nonIdentical
    + .sort()
    + .map(p => '\t' + p)
    + .join('\n')
    + )
    + } else {
    + console.log('No differences detected')
    + }
    +})()
    +
    +/**
    + * Handles Differencify
    + * @param {string} url path to page
    + * @param {string} viewportName key to viewport config
    + */
    +async function checkPage(url, viewportName) {
    + const viewport = viewports[viewportName]
    + const path = url.replace(dir, '')
    + const testName = `page-${viewportName}-${safeFileName(path)}`
    +
    + try {
    + await differencify
    + .init({
    + testName,
    + timeout: 0,
    + })
    + .newPage()
    + .setViewport(viewport)
    + .goto(url)
    + .wait(waitToScreenShotTime)
    + .screenshot()
    + .toMatchSnapshot({ testName })
    + .result(result => {
    + if (!result) nonIdentical.push(`${viewportName} ${path}`)
    + })
    + .close()
    + .end()
    + } catch (error) {
    + console.error(error)
    + }
    +
    + if (verbose) console.log(`checked ${viewportName} ${path}`)
    +}
    +
    +/**
    + * Fetches and parses JSON from web resource
    + * @param {string} url to resource to fetch
    + */
    +function fetch_json(url) {
    + return new Promise(resolve =>
    + fetch.get(url, res => {
    + res.setEncoding('utf8')
    + let body = ''
    + res.on('data', data => (body += data))
    + res.on('end', () => resolve(JSON.parse(body)))
    + })
    + )
    +}
    +
    +/**
    + *
    + * @param {string} str Possibly unsafe url
    + */
    +function safeFileName(str) {
    + return str
    + .replace(/[^a-z0-9]/gi, '_')
    + .toLowerCase()
    + .replace(/^_|_$/, '')
    +}
    +
    +/**
    + * Handles concurrence
    + * @param {Fucntion[]} stack The fucntions to be called
    + */
    +function concurrence(stack) {
    + const er = e => console.error(e)
    + let count = 0
    +
    + return new Promise(resolve => {
    + pull()
    +
    + function pull() {
    + while (count < maxJobs) {
    + let fn = stack.pop()
    +
    + if (!fn) return
    +
    + fn()
    + .catch(er)
    + .then(cont)
    + .catch(er)
    +
    + count++
    + }
    + }
    +
    + function cont() {
    + count--
    + if (count === 0 && stack.length === 0) return resolve()
    + pull()
    + }
    + }).catch(er)
    +}