Add --update and --watch options

bin.js

@@ -1,11 +1,39 @@
 #!/usr/bin/env node
 
 let chalk = require('chalk')
+let argv = require('command-line-args')
 
 let showSnapshots = require('./show-snapshots')
+let updateAndShowSnaphots = require('./update-and-show-snapshots')
+let watchAndShowSnaphots = require('./watch-and-show-snapshots')
 let showVersion = require('./show-version')
 let showHelp = require('./show-help')
 
+let cwd = process.cwd()
+let argsSchema = [
+  {
+    name: 'version',
+    type: Boolean
+  },
+  {
+    name: 'help',
+    type: Boolean
+  },
+  {
+    name: 'update',
+    type: Boolean
+  },
+  {
+    name: 'watch',
+    type: Boolean
+  },
+  {
+    name: 'filter',
+    type: String,
+    defaultOption: true
+  }
+]
+
 function error (message) {
   process.stderr.write(chalk.red(message) + '\n')
 }
@@ -15,17 +43,28 @@ function print (...lines) {
 }
 
 async function run () {
-  let arg = process.argv[2] || ''
-  if (arg === '--version') {
-    showVersion(print)
-  } else if (arg === '--help') {
-    showHelp(print)
-  } else if (arg.startsWith('--')) {
-    error(`Unknown argument ${ arg }\n`)
-    showHelp(print)
-    process.exit(1)
-  } else {
-    await showSnapshots(print, process.cwd(), arg)
+  try {
+    let args = argv(argsSchema)
+
+    if (args.version) {
+      showVersion(print)
+    } else if (args.help) {
+      showHelp(print)
+    } else if (args.update) {
+      await updateAndShowSnaphots(print, cwd, args.filter)
+    } else if (args.watch) {
+      await watchAndShowSnaphots(print, error, cwd, args.filter)
+    } else {
+      await showSnapshots(print, cwd, args.filter)
+    }
+  } catch (e) {
+    if (e.name === 'UNKNOWN_OPTION') {
+      error(`Unknown argument ${ e.optionName }\n`)
+      showHelp(print)
+      process.exit(1)
+    } else {
+      throw e
+    }
   }
 }
 

package.json

@@ -16,7 +16,11 @@
   },
   "dependencies": {
     "chalk": "^3.0.0",
-    "globby": "^11.0.0"
+    "chokidar": "^3.3.1",
+    "command-line-args": "^5.1.1",
+    "globby": "^11.0.0",
+    "parse-gitignore": "^1.0.1",
+    "pkg-up": "^3.1.0"
   },
   "author": "Andrey Sitnik <[email protected]>",
   "license": "MIT",

show-help.js

@@ -10,6 +10,9 @@ module.exports = function showHelp (print) {
     '',
     b('Arguments:'),
     '  ' + y('--version') + '   Show version',
-    '  ' + y('--help') + '   Show this message'
+    '  ' + y('--help') + '      Show this message',
+    '  ' + y('--update') + '    Update snapshots and show them',
+    '  ' + y('--watch') + '     Watch for changes of a project\'s *.js files,' +
+    'update snaphots and show them'
   )
 }

update-and-show-snapshots.js

@@ -0,0 +1,16 @@
+let { spawn } = require('child_process')
+
+let showSnapshots = require('./show-snapshots')
+
+async function updateAndShowSnaphots (print, cwd, filter) {
+  let spawned = spawn('npx', ['jest', '--no-install', '-u'], {
+    cwd, stdio: 'inherit'
+  })
+
+  spawned.on('exit', () => {
+    print('\n')
+    showSnapshots(print, cwd, filter)
+  })
+}
+
+module.exports = updateAndShowSnaphots

watch-and-show-snapshots.js

@@ -0,0 +1,33 @@
+let fs = require('fs')
+let path = require('path')
+let chokidar = require('chokidar')
+let pkgUp = require('pkg-up')
+let parseGitignore = require('parse-gitignore')
+
+let updateAndShowSnaphots = require('./update-and-show-snapshots')
+
+async function watchAndShowSnaphots (print, error, cwd, filter) {
+  let ignored = ['.git', 'node_modules']
+
+  let rootPath = path.dirname(await pkgUp())
+  let gitignorePath = `${ rootPath }/.gitignore`
+
+  if (fs.existsSync(gitignorePath)) {
+    ignored = [...new Set([
+      ...ignored,
+      ...parseGitignore(fs.readFileSync(gitignorePath)).map(
+        p => /\/$/.test(p) ? p.replace(/\/$/, '') : p
+      )
+    ])]
+  }
+
+  let watcher = chokidar.watch('**/*.js', {
+    cwd, ignored
+  })
+
+  watcher
+    .on('change', () => updateAndShowSnaphots(print, cwd, filter))
+    .on('error', err => error(err.stack || err))
+}
+
+module.exports = watchAndShowSnaphots

yarn.lock

@@ -179,13 +179,26 @@ any-observable@^0.3.0:
   resolved "https://registry.yarnpkg.com/any-observable/-/any-observable-0.3.0.tgz#af933475e5806a67d0d7df090dd5e8bef65d119b"
   integrity sha512-/FQM1EDkTsf63Ub2C6O7GuYFDsSXUwsaZDurV0np41ocwq0jthUAYCmhBX9f+KwlaCgIuWyr/4WlUQUBfKfZog==
 
+anymatch@~3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-3.1.1.tgz#c55ecf02185e2469259399310c173ce31233b142"
+  integrity sha512-mM8522psRCqzV+6LhomX5wgp25YVibjh8Wj23I5RPkPppSVSjyKD2A2mBJmWGa+KN7f2D6LNh9jkBCeyLktzjg==
+  dependencies:
+    normalize-path "^3.0.0"
+    picomatch "^2.0.4"
+
 argparse@^1.0.7:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/argparse/-/argparse-1.0.10.tgz#bcd6791ea5ae09725e17e5ad988134cd40b3d911"
   integrity sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==
   dependencies:
     sprintf-js "~1.0.2"
 
+array-back@^3.0.1:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/array-back/-/array-back-3.1.0.tgz#b8859d7a508871c9a7b2cf42f99428f65e96bfb0"
+  integrity sha512-TkuxA4UCOvxuDK6NZYXCalszEzj+TLszyASooky+i742l9TqsOdYCMJJupxRic61hwquNtppB3hgcuq9SVSH1Q==
+
 array-includes@^3.0.3:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/array-includes/-/array-includes-3.1.1.tgz#cdd67e6852bdf9c1215460786732255ed2459348"
@@ -257,6 +270,11 @@ bcrypt-pbkdf@^1.0.0:
   dependencies:
     tweetnacl "^0.14.3"
 
+binary-extensions@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-2.0.0.tgz#23c0df14f6a88077f5f986c0d167ec03c3d5537c"
+  integrity sha512-Phlt0plgpIIBOGTT/ehfFnbNlfsDEiqmzE2KRXoX1bLIlir4X/MR+zSyBEkL05ffWgnRSf/DXv+WrUAVr93/ow==
+
 brace-expansion@^1.1.7:
   version "1.1.11"
   resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.11.tgz#3c7fcbf529d87226f3d2f52b966ff5271eb441dd"
@@ -265,7 +283,7 @@ brace-expansion@^1.1.7:
     balanced-match "^1.0.0"
     concat-map "0.0.1"
 
-braces@^3.0.1:
+braces@^3.0.1, braces@~3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/braces/-/braces-3.0.2.tgz#3454e1a462ee8d599e236df336cd9ea4f8afe107"
   integrity sha512-b8um+L1RzM3WDSzvhm6gIz1yfTbBt6YTlcEKAvsmqCZZFw46z626lVj9j1yEPW33H5H+lBQpZMP1k8l+78Ha0A==
@@ -339,6 +357,21 @@ chardet@^0.7.0:
   resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.7.0.tgz#90094849f0937f2eedc2425d0d28a9e5f0cbad9e"
   integrity sha512-mT8iDcrh03qDGRRmoA2hmBJnxpllMR+0/0qlzjqZES6NdiWDcZkCNAk4rPFZ9Q85r27unkiNNg8ZOiwZXBHwcA==
 
+chokidar@^3.3.1:
+  version "3.3.1"
+  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-3.3.1.tgz#c84e5b3d18d9a4d77558fef466b1bf16bbeb3450"
+  integrity sha512-4QYCEWOcK3OJrxwvyyAOxFuhpvOVCYkr33LPfFNBjAD/w3sEzWsp2BUOkI4l9bHvWioAd0rc6NlHUOEaWkTeqg==
+  dependencies:
+    anymatch "~3.1.1"
+    braces "~3.0.2"
+    glob-parent "~5.1.0"
+    is-binary-path "~2.1.0"
+    is-glob "~4.0.1"
+    normalize-path "~3.0.0"
+    readdirp "~3.3.0"
+  optionalDependencies:
+    fsevents "~2.1.2"
+
 ci-info@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ci-info/-/ci-info-2.0.0.tgz#67a9e964be31a51e15e5010d58e6f12834002f46"
@@ -437,6 +470,16 @@ combined-stream@^1.0.6, combined-stream@~1.0.6:
   dependencies:
     delayed-stream "~1.0.0"
 
+command-line-args@^5.1.1:
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/command-line-args/-/command-line-args-5.1.1.tgz#88e793e5bb3ceb30754a86863f0401ac92fd369a"
+  integrity sha512-hL/eG8lrll1Qy1ezvkant+trihbGnaKaeEjj6Scyr3DN+RC7iQ5Rz84IeLERfAWDGo0HBSNAakczwgCilDXnWg==
+  dependencies:
+    array-back "^3.0.1"
+    find-replace "^3.0.0"
+    lodash.camelcase "^4.3.0"
+    typical "^4.0.0"
+
 commander@^3.0.0:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/commander/-/commander-3.0.2.tgz#6837c3fb677ad9933d1cfba42dd14d5117d6b39e"
@@ -1025,6 +1068,13 @@ fill-range@^7.0.1:
   dependencies:
     to-regex-range "^5.0.1"
 
+find-replace@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/find-replace/-/find-replace-3.0.0.tgz#3e7e23d3b05167a76f770c9fbd5258b0def68c38"
+  integrity sha512-6Tb2myMioCAgv5kfvP5/PkZZ/ntTpVK39fHY7WkWBgvbeE+VHd/tZuZ4mrC+bxh4cfOZeYKVPaJIZtZXV7GNCQ==
+  dependencies:
+    array-back "^3.0.1"
+
 find-up@^2.0.0, find-up@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/find-up/-/find-up-2.1.0.tgz#45d1b7e506c717ddd482775a2b77920a3c0c57a7"
@@ -1096,6 +1146,11 @@ fs.realpath@^1.0.0:
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
   integrity sha1-FQStJSMVjKpA20onh8sBQRmU6k8=
 
+fsevents@~2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-2.1.2.tgz#4c0a1fb34bc68e543b4b82a9ec392bfbda840805"
+  integrity sha512-R4wDiBwZ0KzpgOWetKDug1FZcYhqYnUYKtfZYt4mD5SBz76q0KR4Q9o7GIPamsVPGmW3EYPPJ0dOOjvx32ldZA==
+
 function-bind@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
@@ -1137,7 +1192,7 @@ getpass@^0.1.1:
   dependencies:
     assert-plus "^1.0.0"
 
-glob-parent@^5.0.0, glob-parent@^5.1.0:
+glob-parent@^5.0.0, glob-parent@^5.1.0, glob-parent@~5.1.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/glob-parent/-/glob-parent-5.1.0.tgz#5f4c1d1e748d30cd73ad2944b3577a81b081e8c2"
   integrity sha512-qjtRgnIVmOfnKUE3NJAQEdk+lKrxfw8t5ke7SXtfMTHcjsBfOfWXCQfdb30zfDoZQ2IRSIiidmjtbHZPZ++Ihw==
@@ -1352,6 +1407,13 @@ is-arrayish@^0.2.1:
   resolved "https://registry.yarnpkg.com/is-arrayish/-/is-arrayish-0.2.1.tgz#77c99840527aa8ecb1a8ba697b80645a7a926a9d"
   integrity sha1-d8mYQFJ6qOyxqLppe4BkWnqSap0=
 
+is-binary-path@~2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/is-binary-path/-/is-binary-path-2.1.0.tgz#ea1f7f3b80f064236e83470f86c09c254fb45b09"
+  integrity sha512-ZMERYes6pDydyuGidse7OsHxtbI7WVeUEozgR/g7rd0xUimYNlvZRE/K2MgZTjWy725IfelLeVcEM97mmtRGXw==
+  dependencies:
+    binary-extensions "^2.0.0"
+
 is-callable@^1.1.4, is-callable@^1.1.5:
   version "1.1.5"
   resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.1.5.tgz#f7e46b596890456db74e7f6e976cb3273d06faab"
@@ -1389,7 +1451,7 @@ is-fullwidth-code-point@^3.0.0:
   resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz#f116f8064fe90b3f7844a38997c0b75051269f1d"
   integrity sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg==
 
-is-glob@^4.0.0, is-glob@^4.0.1:
+is-glob@^4.0.0, is-glob@^4.0.1, is-glob@~4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-4.0.1.tgz#7567dbe9f2f5e2467bc77ab83c4a29482407a5dc"
   integrity sha512-5G0tKtBTFImOqDnLB2hG6Bp2qcKEFduo4tZu9MT/H6NQv/ghhy30o55ufafxJ/LdH79LLs2Kfrn85TLKyA7BUg==
@@ -1854,7 +1916,7 @@ normalize-package-data@^2.3.2, normalize-package-data@^2.5.0:
     semver "2 || 3 || 4 || 5"
     validate-npm-package-license "^3.0.1"
 
-normalize-path@^3.0.0:
+normalize-path@^3.0.0, normalize-path@~3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-3.0.0.tgz#0dcd69ff23a1c9b11fd0978316644a0388216a65"
   integrity sha512-6eZs5Ls3WtCisHWp9S2GUy8dqkpGi4BVSz3GaqiE6ezub0512ESztXUwUB6C6IKbQkY2Pnb/mD4WYojCRwcwLA==
@@ -2055,6 +2117,11 @@ parent-module@^1.0.0:
   dependencies:
     callsites "^3.0.0"
 
+parse-gitignore@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/parse-gitignore/-/parse-gitignore-1.0.1.tgz#8b9dc57f17b810d495c5dfa62eb07caffe7758c7"
+  integrity sha512-UGyowyjtx26n65kdAMWhm6/3uy5uSrpcuH7tt+QEVudiBoVS+eqHxD5kbi9oWVRwj7sCzXqwuM+rUGw7earl6A==
+
 parse-json@^2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/parse-json/-/parse-json-2.2.0.tgz#f480f40434ef80741f8469099f8dea18f55a4dc9"
@@ -2127,7 +2194,7 @@ performance-now@^2.1.0:
   resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-2.1.0.tgz#6309f4e0e5fa913ec1c69307ae364b4b377c9e7b"
   integrity sha1-Ywn04OX6kT7BxpMHrjZLSzd8nns=
 
-picomatch@^2.0.5:
+picomatch@^2.0.4, picomatch@^2.0.5, picomatch@^2.0.7:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/picomatch/-/picomatch-2.2.1.tgz#21bac888b6ed8601f831ce7816e335bc779f0a4a"
   integrity sha512-ISBaA8xQNmwELC7eOjqFKMESB2VIqt4PPDD0nsS95b/9dZXvVKOlz9keMSnoGGKcOHXfTvDD6WMaRoSc9UuhRA==
@@ -2151,6 +2218,13 @@ pkg-dir@^4.2.0:
   dependencies:
     find-up "^4.0.0"
 
+pkg-up@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/pkg-up/-/pkg-up-3.1.0.tgz#100ec235cc150e4fd42519412596a28512a0def5"
+  integrity sha512-nDywThFk1i4BQK4twPQ6TA4RT8bDY96yeuCVBWL3ePARCiEKDRSrNGbFIgUJpLp+XeIR65v8ra7WuJOFUBtkMA==
+  dependencies:
+    find-up "^3.0.0"
+
 please-upgrade-node@^3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/please-upgrade-node/-/please-upgrade-node-3.2.0.tgz#aeddd3f994c933e4ad98b99d9a556efa0e2fe942"
@@ -2232,6 +2306,13 @@ read-pkg@^5.2.0:
     parse-json "^5.0.0"
     type-fest "^0.6.0"
 
+readdirp@~3.3.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-3.3.0.tgz#984458d13a1e42e2e9f5841b129e162f369aff17"
+  integrity sha512-zz0pAkSPOXXm1viEwygWIPSPkcBYjW1xU5j/JBh5t9bGCJwa6f9+BJa6VaB2g+b55yVrmXzqkyLf4xaWYM0IkQ==
+  dependencies:
+    picomatch "^2.0.7"
+
 rechoir@^0.6.2:
   version "0.6.2"
   resolved "https://registry.yarnpkg.com/rechoir/-/rechoir-0.6.2.tgz#85204b54dba82d5742e28c96756ef43af50e3384"
@@ -2756,6 +2837,11 @@ type-fest@^0.8.1:
   resolved "https://registry.yarnpkg.com/type-fest/-/type-fest-0.8.1.tgz#09e249ebde851d3b1e48d27c105444667f17b83d"
   integrity sha512-4dbzIzqvjtgiM5rw1k5rEHtBANKmdudhGyBEajN01fEyhaAIhsoKNy6y7+IN93IfpFtwY9iqi7kD+xwKhQsNJA==
 
+typical@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/typical/-/typical-4.0.0.tgz#cbeaff3b9d7ae1e2bbfaf5a4e6f11eccfde94fc4"
+  integrity sha512-VAH4IvQ7BDFYglMd7BPRDfLgxZZX4O4TFcRDA6EN5X7erNJJq+McIEp8np9aVtxrCJ6qx4GTYVfOWNjcqwZgRw==
+
 uc.micro@^1.0.1, uc.micro@^1.0.5:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/uc.micro/-/uc.micro-1.0.6.tgz#9c411a802a409a91fc6cf74081baba34b24499ac"