Showing the changes to node_modules/simple-git/promise.js (1 of 41 files). Show all
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| @@ -0,0 +1,96 @@ | ||
| 1 | + | |
| 2 | +if (typeof Promise === 'undefined') { | |
| 3 | + throw new ReferenceError("Promise wrappers must be enabled to use the promise API"); | |
| 4 | +} | |
| 5 | + | |
| 6 | +function isAsyncCall (fn) { | |
| 7 | + return /^[^)]+then\s*\)/.test(fn) || /\._run\(/.test(fn); | |
| 8 | +} | |
| 9 | + | |
| 10 | +module.exports = function (baseDir) { | |
| 11 | + | |
| 12 | + var Git = require('./src/git'); | |
| 13 | + var gitFactory = require('./src'); | |
| 14 | + var git; | |
| 15 | + | |
| 16 | + | |
| 17 | + var chain = Promise.resolve(); | |
| 18 | + | |
| 19 | + try { | |
| 20 | + git = gitFactory(baseDir); | |
| 21 | + } | |
| 22 | + catch (e) { | |
| 23 | + chain = Promise.reject(e); | |
| 24 | + } | |
| 25 | + | |
| 26 | + return Object.keys(Git.prototype).reduce(function (promiseApi, fn) { | |
| 27 | + if (/^_|then/.test(fn)) { | |
| 28 | + return promiseApi; | |
| 29 | + } | |
| 30 | + | |
| 31 | + if (isAsyncCall(Git.prototype[fn])) { | |
| 32 | + promiseApi[fn] = git ? asyncWrapper(fn, git) : function () { | |
| 33 | + return chain; | |
| 34 | + }; | |
| 35 | + } | |
| 36 | + | |
| 37 | + else { | |
| 38 | + promiseApi[fn] = git ? syncWrapper(fn, git, promiseApi) : function () { | |
| 39 | + return promiseApi; | |
| 40 | + }; | |
| 41 | + } | |
| 42 | + | |
| 43 | + return promiseApi; | |
| 44 | + | |
| 45 | + }, {}); | |
| 46 | + | |
| 47 | + function asyncWrapper (fn, git) { | |
| 48 | + return function () { | |
| 49 | + var args = [].slice.call(arguments); | |
| 50 | + | |
| 51 | + if (typeof args[args.length] === 'function') { | |
| 52 | + throw new TypeError( | |
| 53 | + "Promise interface requires that handlers are not supplied inline, " + | |
| 54 | + "trailing function not allowed in call to " + fn); | |
| 55 | + } | |
| 56 | + | |
| 57 | + return chain.then(function () { | |
| 58 | + return new Promise(function (resolve, reject) { | |
| 59 | + args.push(function (err, result) { | |
| 60 | + if (err) { | |
| 61 | + return reject(toError(err)); | |
| 62 | + } | |
| 63 | + | |
| 64 | + resolve(result); | |
| 65 | + }); | |
| 66 | + | |
| 67 | + git[fn].apply(git, args); | |
| 68 | + }); | |
| 69 | + }); | |
| 70 | + }; | |
| 71 | + } | |
| 72 | + | |
| 73 | + function syncWrapper (fn, git, api) { | |
| 74 | + return function () { | |
| 75 | + git[fn].apply(git, arguments); | |
| 76 | + | |
| 77 | + return api; | |
| 78 | + }; | |
| 79 | + } | |
| 80 | + | |
| 81 | +}; | |
| 82 | + | |
| 83 | +function toError (error) { | |
| 84 | + | |
| 85 | + if (error instanceof Error) { | |
| 86 | + return error; | |
| 87 | + } | |
| 88 | + | |
| 89 | + if (typeof error === 'string') { | |
| 90 | + return new Error(error); | |
| 91 | + } | |
| 92 | + | |
| 93 | + return Object.create(new Error(error), { | |
| 94 | + git: { value: error }, | |
| 95 | + }); | |
| 96 | +} | |