├── .gitignore
├── .npmignore
├── __test__
    └── index.test.js
├── index.js
├── package.json
└── yarn.lock


/.gitignore:
--------------------------------------------------------------------------------
 1 | .DS_Store
 2 | # Logs
 3 | logs
 4 | *.log
 5 | npm-debug.log*
 6 | yarn-debug.log*
 7 | yarn-error.log*
 8 | 
 9 | # Runtime data
10 | pids
11 | *.pid
12 | *.seed
13 | *.pid.lock
14 | 
15 | # Directory for instrumented libs generated by jscoverage/JSCover
16 | lib-cov
17 | 
18 | # Coverage directory used by tools like istanbul
19 | coverage
20 | 
21 | # nyc test coverage
22 | .nyc_output
23 | 
24 | # Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
25 | .grunt
26 | 
27 | # Bower dependency directory (https://bower.io/)
28 | bower_components
29 | 
30 | # node-waf configuration
31 | .lock-wscript
32 | 
33 | # Compiled binary addons (https://nodejs.org/api/addons.html)
34 | build/Release
35 | 
36 | # Dependency directories
37 | node_modules/
38 | jspm_packages/
39 | 
40 | # TypeScript v1 declaration files
41 | typings/
42 | 
43 | # Optional npm cache directory
44 | .npm
45 | 
46 | # Optional eslint cache
47 | .eslintcache
48 | 
49 | # Optional REPL history
50 | .node_repl_history
51 | 
52 | # Output of 'npm pack'
53 | *.tgz
54 | 
55 | # Yarn Integrity file
56 | .yarn-integrity
57 | 
58 | # dotenv environment variables file
59 | .env
60 | 
61 | # parcel-bundler cache (https://parceljs.org/)
62 | .cache
63 | 
64 | # next.js build output
65 | .next
66 | 
67 | # nuxt.js build output
68 | .nuxt
69 | 
70 | # vuepress build output
71 | .vuepress/dist
72 | 
73 | # Serverless directories
74 | .serverless
75 | 


--------------------------------------------------------------------------------
/.npmignore:
--------------------------------------------------------------------------------
1 | __test__
2 | 


--------------------------------------------------------------------------------
/__test__/index.test.js:
--------------------------------------------------------------------------------
 1 | #!/bin/env/bash node
 2 | 
 3 | const createMiddleware = require('../')
 4 | const yargs = require('yargs')
 5 | 
 6 | const middleware = createMiddleware('yconfig')
 7 | 
 8 | yargs.option('key', { type: 'string' })
 9 |   .middleware(middleware)
10 |   .command('$0', '', () => {}, (argv) => {
11 |     console.log(process.env)
12 |   })
13 |   .argv


--------------------------------------------------------------------------------
/index.js:
--------------------------------------------------------------------------------
  1 | const fs = require('fs')
  2 | const path = require('path')
  3 | const { serialize, deserialize } = require('kvp')
  4 | const win = process.platform === 'win32'
  5 | const home = win
  6 |   ? process.env.USERPROFILE
  7 |   : process.env.HOME
  8 |   
  9 | const isUppercase = char =>
 10 |   char.charCodeAt(0) >= 65 && char.charCodeAt(0) <= 90
 11 | 
 12 | const simpleSplit = (chars) => {
 13 |   let str = ''
 14 |   let out = []
 15 |   let index = 0
 16 | 
 17 |   const put = value => {
 18 |     out.push(value)
 19 |     str = ''
 20 |   }
 21 | 
 22 |   while (index < chars.length) {
 23 |     let char = chars[index]
 24 |     let next = chars[index + 1] || ''
 25 |     str += char.toUpperCase()
 26 |     index++
 27 |     if (isUppercase(next)) {
 28 |       put(str)
 29 |       continue
 30 |     }
 31 |     if (index === chars.length) {
 32 |       put(str)
 33 |     }
 34 |   }
 35 | 
 36 |   return out
 37 | }
 38 | 
 39 | const snakeCase = (string) => {
 40 |   let out = simpleSplit(string.split(''))
 41 |   return out.join('_')
 42 | }
 43 | 
 44 | const normalize = (key = 'yconfig', options = {}) => {
 45 |   if (key.endsWith('.json')) {
 46 |     
 47 |   }
 48 |   if (!options.path) {
 49 |     options.path = path.join(home, `.${key}`)
 50 |   }
 51 | 
 52 |   options.path = path.isAbsolute(options.path)
 53 |     ? options.path
 54 |     : path.join(home, options.path)
 55 |   
 56 |   return { key, options }
 57 | }
 58 | 
 59 | module.exports = (...params) => {
 60 |   let { key, options } = normalize(...params)
 61 | 
 62 |   const load = (argv = {}) => {
 63 |     let config = {}
 64 |     try {
 65 |       config = fs.readFileSync(options.path, { encoding: 'utf8' })
 66 |     } catch (err) {}
 67 |     argv[key] = typeof config === 'string' ? deserialize(config) : {}
 68 |   }
 69 | 
 70 |   const save = (argv = {}) => {
 71 |     let omit = [key, '_', '$0'].concat(options.omit || [])
 72 |     let props = Object.keys(argv)
 73 |       .filter(k => !omit.includes(k))
 74 |   
 75 |     let isStale = false
 76 |   
 77 |     while (props.length) {
 78 |       let prop = props.shift()
 79 |       if (argv[prop] && argv[prop] !== (argv[key] || {})[prop]) {
 80 |         if (!isStale) {
 81 |           isStale = true
 82 |         }
 83 |         argv[key][prop] = argv[prop]
 84 |       }
 85 |     }
 86 |     for (let prop in argv[key]) {
 87 |       let type = typeof argv[key][prop]
 88 |       if (['string', 'boolean', 'number'].includes(type)) {
 89 |         process.env[snakeCase(prop)] = argv[key][prop]
 90 |       }
 91 |     }
 92 |     if (isStale) {
 93 |       fs.writeFileSync(options.path, serialize(argv[key]))
 94 |     }
 95 |   }
 96 |   return [
 97 |     load,
 98 |     save
 99 |   ]
100 | }


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "yargs-middleware",
 3 |   "version": "0.0.2",
 4 |   "main": "index.js",
 5 |   "license": "MIT",
 6 |   "dependencies": {
 7 |     "kvp": "^0.0.1"
 8 |   },
 9 |   "repository": {
10 |     "type": "git",
11 |     "url": "https://github.com/unshift/yargs-middleware.git"
12 |   },
13 |   "devDependencies": {
14 |     "yargs": "https://github.com/yargs/yargs"
15 |   }
16 | }
17 | 


--------------------------------------------------------------------------------
/yarn.lock:
--------------------------------------------------------------------------------
  1 | # THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
  2 | # yarn lockfile v1
  3 | 
  4 | 
  5 | ansi-regex@^2.0.0:
  6 |   version "2.1.1"
  7 |   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-2.1.1.tgz#c3b33ab5ee360d86e0e628f0468ae7ef27d654df"
  8 | 
  9 | ansi-regex@^3.0.0:
 10 |   version "3.0.0"
 11 |   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-3.0.0.tgz#ed0317c322064f79466c02966bddb605ab37d998"
 12 | 
 13 | camelcase@^4.1.0:
 14 |   version "4.1.0"
 15 |   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-4.1.0.tgz#d545635be1e33c542649c69173e5de6acfae34dd"
 16 | 
 17 | cliui@^4.0.0:
 18 |   version "4.1.0"
 19 |   resolved "https://registry.yarnpkg.com/cliui/-/cliui-4.1.0.tgz#348422dbe82d800b3022eef4f6ac10bf2e4d1b49"
 20 |   dependencies:
 21 |     string-width "^2.1.1"
 22 |     strip-ansi "^4.0.0"
 23 |     wrap-ansi "^2.0.0"
 24 | 
 25 | code-point-at@^1.0.0:
 26 |   version "1.1.0"
 27 |   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
 28 | 
 29 | cross-spawn@^5.0.1:
 30 |   version "5.1.0"
 31 |   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-5.1.0.tgz#e8bd0efee58fcff6f8f94510a0a554bbfa235449"
 32 |   dependencies:
 33 |     lru-cache "^4.0.1"
 34 |     shebang-command "^1.2.0"
 35 |     which "^1.2.9"
 36 | 
 37 | decamelize@^2.0.0:
 38 |   version "2.0.0"
 39 |   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-2.0.0.tgz#656d7bbc8094c4c788ea53c5840908c9c7d063c7"
 40 |   dependencies:
 41 |     xregexp "4.0.0"
 42 | 
 43 | execa@^0.7.0:
 44 |   version "0.7.0"
 45 |   resolved "https://registry.yarnpkg.com/execa/-/execa-0.7.0.tgz#944becd34cc41ee32a63a9faf27ad5a65fc59777"
 46 |   dependencies:
 47 |     cross-spawn "^5.0.1"
 48 |     get-stream "^3.0.0"
 49 |     is-stream "^1.1.0"
 50 |     npm-run-path "^2.0.0"
 51 |     p-finally "^1.0.0"
 52 |     signal-exit "^3.0.0"
 53 |     strip-eof "^1.0.0"
 54 | 
 55 | find-up@^3.0.0:
 56 |   version "3.0.0"
 57 |   resolved "https://registry.yarnpkg.com/find-up/-/find-up-3.0.0.tgz#49169f1d7993430646da61ecc5ae355c21c97b73"
 58 |   dependencies:
 59 |     locate-path "^3.0.0"
 60 | 
 61 | get-caller-file@^1.0.1:
 62 |   version "1.0.3"
 63 |   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.3.tgz#f978fa4c90d1dfe7ff2d6beda2a515e713bdcf4a"
 64 | 
 65 | get-stream@^3.0.0:
 66 |   version "3.0.0"
 67 |   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
 68 | 
 69 | invert-kv@^1.0.0:
 70 |   version "1.0.0"
 71 |   resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-1.0.0.tgz#104a8e4aaca6d3d8cd157a8ef8bfab2d7a3ffdb6"
 72 | 
 73 | is-circular@^1.0.2:
 74 |   version "1.0.2"
 75 |   resolved "https://registry.yarnpkg.com/is-circular/-/is-circular-1.0.2.tgz#2e0ab4e9835f4c6b0ea2b9855a84acd501b8366c"
 76 | 
 77 | is-fullwidth-code-point@^1.0.0:
 78 |   version "1.0.0"
 79 |   resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz#ef9e31386f031a7f0d643af82fde50c457ef00cb"
 80 |   dependencies:
 81 |     number-is-nan "^1.0.0"
 82 | 
 83 | is-fullwidth-code-point@^2.0.0:
 84 |   version "2.0.0"
 85 |   resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz#a3b30a5c4f199183167aaab93beefae3ddfb654f"
 86 | 
 87 | is-stream@^1.1.0:
 88 |   version "1.1.0"
 89 |   resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
 90 | 
 91 | isexe@^2.0.0:
 92 |   version "2.0.0"
 93 |   resolved "https://registry.yarnpkg.com/isexe/-/isexe-2.0.0.tgz#e8fbf374dc556ff8947a10dcb0572d633f2cfa10"
 94 | 
 95 | kvp@^0.0.1:
 96 |   version "0.0.1"
 97 |   resolved "https://registry.yarnpkg.com/kvp/-/kvp-0.0.1.tgz#2c5bd530362a0aab36108d5b8b45faec16d6bc24"
 98 |   dependencies:
 99 |     is-circular "^1.0.2"
100 |     lodash.set "^4.3.2"
101 | 
102 | lcid@^1.0.0:
103 |   version "1.0.0"
104 |   resolved "https://registry.yarnpkg.com/lcid/-/lcid-1.0.0.tgz#308accafa0bc483a3867b4b6f2b9506251d1b835"
105 |   dependencies:
106 |     invert-kv "^1.0.0"
107 | 
108 | locate-path@^3.0.0:
109 |   version "3.0.0"
110 |   resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-3.0.0.tgz#dbec3b3ab759758071b58fe59fc41871af21400e"
111 |   dependencies:
112 |     p-locate "^3.0.0"
113 |     path-exists "^3.0.0"
114 | 
115 | lodash.set@^4.3.2:
116 |   version "4.3.2"
117 |   resolved "https://registry.yarnpkg.com/lodash.set/-/lodash.set-4.3.2.tgz#d8757b1da807dde24816b0d6a84bea1a76230b23"
118 | 
119 | lru-cache@^4.0.1:
120 |   version "4.1.3"
121 |   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.3.tgz#a1175cf3496dfc8436c156c334b4955992bce69c"
122 |   dependencies:
123 |     pseudomap "^1.0.2"
124 |     yallist "^2.1.2"
125 | 
126 | mem@^1.1.0:
127 |   version "1.1.0"
128 |   resolved "https://registry.yarnpkg.com/mem/-/mem-1.1.0.tgz#5edd52b485ca1d900fe64895505399a0dfa45f76"
129 |   dependencies:
130 |     mimic-fn "^1.0.0"
131 | 
132 | mimic-fn@^1.0.0:
133 |   version "1.2.0"
134 |   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
135 | 
136 | npm-run-path@^2.0.0:
137 |   version "2.0.2"
138 |   resolved "https://registry.yarnpkg.com/npm-run-path/-/npm-run-path-2.0.2.tgz#35a9232dfa35d7067b4cb2ddf2357b1871536c5f"
139 |   dependencies:
140 |     path-key "^2.0.0"
141 | 
142 | number-is-nan@^1.0.0:
143 |   version "1.0.1"
144 |   resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
145 | 
146 | os-locale@^2.0.0:
147 |   version "2.1.0"
148 |   resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-2.1.0.tgz#42bc2900a6b5b8bd17376c8e882b65afccf24bf2"
149 |   dependencies:
150 |     execa "^0.7.0"
151 |     lcid "^1.0.0"
152 |     mem "^1.1.0"
153 | 
154 | p-finally@^1.0.0:
155 |   version "1.0.0"
156 |   resolved "https://registry.yarnpkg.com/p-finally/-/p-finally-1.0.0.tgz#3fbcfb15b899a44123b34b6dcc18b724336a2cae"
157 | 
158 | p-limit@^2.0.0:
159 |   version "2.0.0"
160 |   resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-2.0.0.tgz#e624ed54ee8c460a778b3c9f3670496ff8a57aec"
161 |   dependencies:
162 |     p-try "^2.0.0"
163 | 
164 | p-locate@^3.0.0:
165 |   version "3.0.0"
166 |   resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-3.0.0.tgz#322d69a05c0264b25997d9f40cd8a891ab0064a4"
167 |   dependencies:
168 |     p-limit "^2.0.0"
169 | 
170 | p-try@^2.0.0:
171 |   version "2.0.0"
172 |   resolved "https://registry.yarnpkg.com/p-try/-/p-try-2.0.0.tgz#85080bb87c64688fa47996fe8f7dfbe8211760b1"
173 | 
174 | path-exists@^3.0.0:
175 |   version "3.0.0"
176 |   resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-3.0.0.tgz#ce0ebeaa5f78cb18925ea7d810d7b59b010fd515"
177 | 
178 | path-key@^2.0.0:
179 |   version "2.0.1"
180 |   resolved "https://registry.yarnpkg.com/path-key/-/path-key-2.0.1.tgz#411cadb574c5a140d3a4b1910d40d80cc9f40b40"
181 | 
182 | pseudomap@^1.0.2:
183 |   version "1.0.2"
184 |   resolved "https://registry.yarnpkg.com/pseudomap/-/pseudomap-1.0.2.tgz#f052a28da70e618917ef0a8ac34c1ae5a68286b3"
185 | 
186 | require-directory@^2.1.1:
187 |   version "2.1.1"
188 |   resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
189 | 
190 | require-main-filename@^1.0.1:
191 |   version "1.0.1"
192 |   resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
193 | 
194 | set-blocking@^2.0.0:
195 |   version "2.0.0"
196 |   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
197 | 
198 | shebang-command@^1.2.0:
199 |   version "1.2.0"
200 |   resolved "https://registry.yarnpkg.com/shebang-command/-/shebang-command-1.2.0.tgz#44aac65b695b03398968c39f363fee5deafdf1ea"
201 |   dependencies:
202 |     shebang-regex "^1.0.0"
203 | 
204 | shebang-regex@^1.0.0:
205 |   version "1.0.0"
206 |   resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
207 | 
208 | signal-exit@^3.0.0:
209 |   version "3.0.2"
210 |   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
211 | 
212 | string-width@^1.0.1:
213 |   version "1.0.2"
214 |   resolved "https://registry.yarnpkg.com/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"
215 |   dependencies:
216 |     code-point-at "^1.0.0"
217 |     is-fullwidth-code-point "^1.0.0"
218 |     strip-ansi "^3.0.0"
219 | 
220 | string-width@^2.0.0, string-width@^2.1.1:
221 |   version "2.1.1"
222 |   resolved "https://registry.yarnpkg.com/string-width/-/string-width-2.1.1.tgz#ab93f27a8dc13d28cac815c462143a6d9012ae9e"
223 |   dependencies:
224 |     is-fullwidth-code-point "^2.0.0"
225 |     strip-ansi "^4.0.0"
226 | 
227 | strip-ansi@^3.0.0, strip-ansi@^3.0.1:
228 |   version "3.0.1"
229 |   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
230 |   dependencies:
231 |     ansi-regex "^2.0.0"
232 | 
233 | strip-ansi@^4.0.0:
234 |   version "4.0.0"
235 |   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-4.0.0.tgz#a8479022eb1ac368a871389b635262c505ee368f"
236 |   dependencies:
237 |     ansi-regex "^3.0.0"
238 | 
239 | strip-eof@^1.0.0:
240 |   version "1.0.0"
241 |   resolved "https://registry.yarnpkg.com/strip-eof/-/strip-eof-1.0.0.tgz#bb43ff5598a6eb05d89b59fcd129c983313606bf"
242 | 
243 | which-module@^2.0.0:
244 |   version "2.0.0"
245 |   resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
246 | 
247 | which@^1.2.9:
248 |   version "1.3.1"
249 |   resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"
250 |   dependencies:
251 |     isexe "^2.0.0"
252 | 
253 | wrap-ansi@^2.0.0:
254 |   version "2.1.0"
255 |   resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
256 |   dependencies:
257 |     string-width "^1.0.1"
258 |     strip-ansi "^3.0.1"
259 | 
260 | xregexp@4.0.0:
261 |   version "4.0.0"
262 |   resolved "https://registry.yarnpkg.com/xregexp/-/xregexp-4.0.0.tgz#e698189de49dd2a18cc5687b05e17c8e43943020"
263 | 
264 | "y18n@^3.2.1 || ^4.0.0":
265 |   version "4.0.0"
266 |   resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"
267 | 
268 | yallist@^2.1.2:
269 |   version "2.1.2"
270 |   resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"
271 | 
272 | yargs-parser@^10.1.0:
273 |   version "10.1.0"
274 |   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-10.1.0.tgz#7202265b89f7e9e9f2e5765e0fe735a905edbaa8"
275 |   dependencies:
276 |     camelcase "^4.1.0"
277 | 
278 | "yargs@https://github.com/yargs/yargs":
279 |   version "12.0.1"
280 |   resolved "https://github.com/yargs/yargs#18b2fcb19db1e652614d066098d1de4818fbcb3e"
281 |   dependencies:
282 |     cliui "^4.0.0"
283 |     decamelize "^2.0.0"
284 |     find-up "^3.0.0"
285 |     get-caller-file "^1.0.1"
286 |     os-locale "^2.0.0"
287 |     require-directory "^2.1.1"
288 |     require-main-filename "^1.0.1"
289 |     set-blocking "^2.0.0"
290 |     string-width "^2.0.0"
291 |     which-module "^2.0.0"
292 |     y18n "^3.2.1 || ^4.0.0"
293 |     yargs-parser "^10.1.0"
294 | 


--------------------------------------------------------------------------------