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[dotfiles/.git] / .config / coc / extensions / node_modules / coc-prettier / node_modules / debug / src / node.js
1 /**
2  * Module dependencies.
3  */
4
5 const tty = require('tty');
6 const util = require('util');
7
8 /**
9  * This is the Node.js implementation of `debug()`.
10  */
11
12 exports.init = init;
13 exports.log = log;
14 exports.formatArgs = formatArgs;
15 exports.save = save;
16 exports.load = load;
17 exports.useColors = useColors;
18 exports.destroy = util.deprecate(
19         () => {},
20         'Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.'
21 );
22
23 /**
24  * Colors.
25  */
26
27 exports.colors = [6, 2, 3, 4, 5, 1];
28
29 try {
30         // Optional dependency (as in, doesn't need to be installed, NOT like optionalDependencies in package.json)
31         // eslint-disable-next-line import/no-extraneous-dependencies
32         const supportsColor = require('supports-color');
33
34         if (supportsColor && (supportsColor.stderr || supportsColor).level >= 2) {
35                 exports.colors = [
36                         20,
37                         21,
38                         26,
39                         27,
40                         32,
41                         33,
42                         38,
43                         39,
44                         40,
45                         41,
46                         42,
47                         43,
48                         44,
49                         45,
50                         56,
51                         57,
52                         62,
53                         63,
54                         68,
55                         69,
56                         74,
57                         75,
58                         76,
59                         77,
60                         78,
61                         79,
62                         80,
63                         81,
64                         92,
65                         93,
66                         98,
67                         99,
68                         112,
69                         113,
70                         128,
71                         129,
72                         134,
73                         135,
74                         148,
75                         149,
76                         160,
77                         161,
78                         162,
79                         163,
80                         164,
81                         165,
82                         166,
83                         167,
84                         168,
85                         169,
86                         170,
87                         171,
88                         172,
89                         173,
90                         178,
91                         179,
92                         184,
93                         185,
94                         196,
95                         197,
96                         198,
97                         199,
98                         200,
99                         201,
100                         202,
101                         203,
102                         204,
103                         205,
104                         206,
105                         207,
106                         208,
107                         209,
108                         214,
109                         215,
110                         220,
111                         221
112                 ];
113         }
114 } catch (error) {
115         // Swallow - we only care if `supports-color` is available; it doesn't have to be.
116 }
117
118 /**
119  * Build up the default `inspectOpts` object from the environment variables.
120  *
121  *   $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
122  */
123
124 exports.inspectOpts = Object.keys(process.env).filter(key => {
125         return /^debug_/i.test(key);
126 }).reduce((obj, key) => {
127         // Camel-case
128         const prop = key
129                 .substring(6)
130                 .toLowerCase()
131                 .replace(/_([a-z])/g, (_, k) => {
132                         return k.toUpperCase();
133                 });
134
135         // Coerce string value into JS value
136         let val = process.env[key];
137         if (/^(yes|on|true|enabled)$/i.test(val)) {
138                 val = true;
139         } else if (/^(no|off|false|disabled)$/i.test(val)) {
140                 val = false;
141         } else if (val === 'null') {
142                 val = null;
143         } else {
144                 val = Number(val);
145         }
146
147         obj[prop] = val;
148         return obj;
149 }, {});
150
151 /**
152  * Is stdout a TTY? Colored output is enabled when `true`.
153  */
154
155 function useColors() {
156         return 'colors' in exports.inspectOpts ?
157                 Boolean(exports.inspectOpts.colors) :
158                 tty.isatty(process.stderr.fd);
159 }
160
161 /**
162  * Adds ANSI color escape codes if enabled.
163  *
164  * @api public
165  */
166
167 function formatArgs(args) {
168         const {namespace: name, useColors} = this;
169
170         if (useColors) {
171                 const c = this.color;
172                 const colorCode = '\u001B[3' + (c < 8 ? c : '8;5;' + c);
173                 const prefix = `  ${colorCode};1m${name} \u001B[0m`;
174
175                 args[0] = prefix + args[0].split('\n').join('\n' + prefix);
176                 args.push(colorCode + 'm+' + module.exports.humanize(this.diff) + '\u001B[0m');
177         } else {
178                 args[0] = getDate() + name + ' ' + args[0];
179         }
180 }
181
182 function getDate() {
183         if (exports.inspectOpts.hideDate) {
184                 return '';
185         }
186         return new Date().toISOString() + ' ';
187 }
188
189 /**
190  * Invokes `util.format()` with the specified arguments and writes to stderr.
191  */
192
193 function log(...args) {
194         return process.stderr.write(util.format(...args) + '\n');
195 }
196
197 /**
198  * Save `namespaces`.
199  *
200  * @param {String} namespaces
201  * @api private
202  */
203 function save(namespaces) {
204         if (namespaces) {
205                 process.env.DEBUG = namespaces;
206         } else {
207                 // If you set a process.env field to null or undefined, it gets cast to the
208                 // string 'null' or 'undefined'. Just delete instead.
209                 delete process.env.DEBUG;
210         }
211 }
212
213 /**
214  * Load `namespaces`.
215  *
216  * @return {String} returns the previously persisted debug modes
217  * @api private
218  */
219
220 function load() {
221         return process.env.DEBUG;
222 }
223
224 /**
225  * Init logic for `debug` instances.
226  *
227  * Create a new `inspectOpts` object in case `useColors` is set
228  * differently for a particular `debug` instance.
229  */
230
231 function init(debug) {
232         debug.inspectOpts = {};
233
234         const keys = Object.keys(exports.inspectOpts);
235         for (let i = 0; i < keys.length; i++) {
236                 debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
237         }
238 }
239
240 module.exports = require('./common')(exports);
241
242 const {formatters} = module.exports;
243
244 /**
245  * Map %o to `util.inspect()`, all on a single line.
246  */
247
248 formatters.o = function (v) {
249         this.inspectOpts.colors = this.useColors;
250         return util.inspect(v, this.inspectOpts)
251                 .split('\n')
252                 .map(str => str.trim())
253                 .join(' ');
254 };
255
256 /**
257  * Map %O to `util.inspect()`, allowing multiple lines if needed.
258  */
259
260 formatters.O = function (v) {
261         this.inspectOpts.colors = this.useColors;
262         return util.inspect(v, this.inspectOpts);
263 };