| | 1 | 'use strict'; |
| | 2 | |
| | 3 | const internals = { |
| | 4 | kCircularString: '[Circular]', |
| | 5 | kAnsiCodes: { |
| | 6 | bold: '[1m', |
| | 7 | italics: '[3m', |
| | 8 | underline: '[4m', |
| | 9 | inverse: '[7m', |
| | 10 | strikethrough: '[9m', |
| | 11 | bold_off: '[22m', |
| | 12 | italics_off: '[23m', |
| | 13 | underline_off: '[24m', |
| | 14 | inverse_off: '[27m', |
| | 15 | strikethrough_off: '[29m', |
| | 16 | black: '[30m', |
| | 17 | red: '[31m', |
| | 18 | green: '[32m', |
| | 19 | yellow: '[33m', |
| | 20 | blue: '[34m', |
| | 21 | magenta: '[35m', |
| | 22 | cyan: '[36m', |
| | 23 | white: '[37m', |
| | 24 | default: '[39m', |
| | 25 | black_bg: '[40m', |
| | 26 | red_bg: '[41m', |
| | 27 | green_bg: '[42m', |
| | 28 | yellow_bg: '[43m', |
| | 29 | blue_bg: '[44m', |
| | 30 | magenta_bg: '[45m', |
| | 31 | cyan_bg: '[46m', |
| | 32 | white_bg: '[47m', |
| | 33 | default_bg: '[49m', |
| | 34 | reset: '[0m' |
| | 35 | }, |
| | 36 | |
| | 37 | // Get High Res time depending on platform. Currently only supporting node. |
| | 38 | |
| | 39 | getHighResTime() { |
| | 40 | |
| | 41 | return process.hrtime.bigint(); |
| | 42 | } |
| | 43 | }; |
| | 44 | |
| | 45 | // Initialise relative time. |
| | 46 | |
| | 47 | internals.initialTimestamp = BigInt(Date.now()) * 1000000n; |
| | 48 | internals.initialHighResTime = internals.getHighResTime(); |
| | 49 | |
| | 50 | /** |
| | 51 | * Container object for utilities used by loggers. |
| | 52 | * |
| | 53 | * @class Utilities |
| | 54 | */ |
| | 55 | module.exports = { |
| | 56 | |
| | 57 | /** |
| | 58 | * Returns the current timestamp in nanoseconds as a bigint. |
| | 59 | * |
| | 60 | * @function now |
| | 61 | * @memberof Utilities |
| | 62 | * @return {bigint} current time in nanoseconds, including fractions. |
| | 63 | */ |
| | 64 | now() { |
| | 65 | |
| | 66 | return internals.initialTimestamp + internals.getHighResTime() - internals.initialHighResTime; |
| | 67 | }, |
| | 68 | |
| | 69 | /** |
| | 70 | * Stringifies objects, avoiding circular references. |
| | 71 | * |
| | 72 | * @function stringify |
| | 73 | * @memberof Utilities |
| | 74 | * @param {Object} object the object to stringify |
| | 75 | * @return {String} the stringified object |
| | 76 | */ |
| | 77 | stringify(object) { |
| | 78 | |
| | 79 | const cache = new Set(); |
| | 80 | |
| | 81 | return JSON.stringify(object, (key, value) => { |
| | 82 | |
| | 83 | if (typeof value === 'bigint') { |
| | 84 | return String(value) + 'n'; |
| | 85 | } |
| | 86 | |
| | 87 | if (typeof value === 'object' && value !== null) { |
| | 88 | if (cache.has(value)) { |
| | 89 | return internals.kCircularString; |
| | 90 | } |
| | 91 | |
| | 92 | cache.add(value); |
| | 93 | } |
| | 94 | |
| | 95 | return value; |
| | 96 | }); |
| | 97 | }, |
| | 98 | |
| | 99 | /** |
| | 100 | * Given an ansi keyword, it will return the appropriate code. |
| | 101 | * |
| | 102 | * @function getAnsiCode |
| | 103 | * @memberof Utilities |
| | 104 | * @param {String} ansiString the name of the desired code |
| | 105 | * @return {String} the ansi code |
| | 106 | */ |
| | 107 | getAnsiCode(ansiString) { |
| | 108 | |
| | 109 | return internals.kAnsiCodes[ansiString] || internals.kAnsiCodes.reset; |
| | 110 | }, |
| | 111 | |
| | 112 | /** |
| | 113 | * Given a level, it will return the appropriate ansi keyword related |
| | 114 | * to it. |
| | 115 | * |
| | 116 | * @function getLevelAnsi |
| | 117 | * @memberof Utilities |
| | 118 | * @param {number} level the level of the log |
| | 119 | * @return {String} the ansi keyword |
| | 120 | */ |
| | 121 | getLevelAnsi(level) { |
| | 122 | |
| | 123 | switch (level) { |
| | 124 | case 0: |
| | 125 | case 1: |
| | 126 | case 2: |
| | 127 | case 3: |
| | 128 | return 'red'; |
| | 129 | case 4: |
| | 130 | return 'yellow'; |
| | 131 | case 5: |
| | 132 | case 6: |
| | 133 | return 'blue'; |
| | 134 | case 7: |
| | 135 | return 'green'; |
| | 136 | default: |
| | 137 | return 'default'; |
| | 138 | } |
| | 139 | } |
| | 140 | }; |
git.r.bdr.sh / rbdr / cologne / blame_incremental