|
| 1 | +'use strict'; |
| 2 | + |
| 3 | +var npm = require('npm'); |
| 4 | +var path = require('path'); |
| 5 | +var which = require('which'); |
| 6 | +var findup = require('findup'); |
| 7 | +var type = require('utils-type'); |
| 8 | + |
| 9 | +exports = module.exports = whichBlib; |
| 10 | +exports.sync = syncWhichBlib; |
| 11 | +exports.packageFields = ['version']; |
| 12 | + |
| 13 | +var argv = process.argv; |
| 14 | +var main = process.mainModule; |
| 15 | + |
| 16 | +function whichBlib(cmd_, cb){ |
| 17 | + var cmd = check(cmd_); |
| 18 | + |
| 19 | + which(cmd.name, function(err, whichName){ |
| 20 | + if(err){ throw cb(err); } |
| 21 | + cmd.extension = cmd.extension || '.js'; |
| 22 | + cmd.which = whichName; |
| 23 | + cmd.runFromBin = cmd.which === argv[1]; |
| 24 | + cmd.configFile = cmd.configFile || cmd.name + 'file'; |
| 25 | + if( !path.extname(cmd.configFile) ){ cmd.configFile += cmd.extension; } |
| 26 | + npm.load(function(cli, npm_){ |
| 27 | + findup(process.cwd(), cmd.configFile, function(err, configDir){ |
| 28 | + cmd.mainDir = npm_.dir; |
| 29 | + cmd.globalDir = npm_.globalDir; |
| 30 | + |
| 31 | + if( !err ){ cmd.configFile = path.join(configDir, cmd.configFile); } |
| 32 | + else { cmd.configFile = err; } |
| 33 | + |
| 34 | + var cliPackage; cmd.cliPackage = { }; |
| 35 | + var modulePackage; cmd.modulePackage = { }; |
| 36 | + var pack = path.join(cmd.name, 'package'); |
| 37 | + try { modulePackage = require(path.join(cmd.mainDir, pack)); } |
| 38 | + catch(err){ |
| 39 | + cmd.modulePackage = err; |
| 40 | + return cb(err, cmd); |
| 41 | + } |
| 42 | + try { cliPackage = require(path.join(cmd.globalDir, pack)); } |
| 43 | + catch(err){ |
| 44 | + cmd.cliPackage = err; |
| 45 | + copyFields(cmd, modulePackage); |
| 46 | + return cb(err, cmd); |
| 47 | + } |
| 48 | + |
| 49 | + copyFields(cmd, modulePackage, cliPackage); |
| 50 | + cb(err || null, cmd); |
| 51 | + }); |
| 52 | + }); |
| 53 | + }); |
| 54 | +} |
| 55 | + |
| 56 | +function syncWhichBlib(cmd_){ |
| 57 | + var cmd = check(cmd_); |
| 58 | + cmd.cwd = process.cwd(); |
| 59 | + cmd.extension = cmd.extension || '.js'; |
| 60 | + cmd.configFile = cmd.configFile || cmd.name + 'file'; |
| 61 | + if( !path.extname(cmd.configFile) ){ cmd.configFile += cmd.extension; } |
| 62 | + |
| 63 | + var which = require('which'); |
| 64 | + var findup = require('findup-sync'); |
| 65 | + |
| 66 | + cmd.which = which.sync(cmd.name); |
| 67 | + cmd.runFromBin = cmd.which === argv[1]; |
| 68 | + cmd.configFile = findup(cmd.configFile, { cwd : cmd.cwd }); |
| 69 | + |
| 70 | + cmd.mainDir = main.paths[0]; |
| 71 | + cmd.globalDir = null; |
| 72 | + if( cmd.which ){ |
| 73 | + // TODO: find a non hacky way to do this |
| 74 | + cmd.globalDir = path.resolve(cmd.which || '.', '..', '..', 'lib', 'node_modules'); |
| 75 | + } |
| 76 | + |
| 77 | + var cliPackage; cmd.cliPackage = { }; |
| 78 | + var modulePackage; cmd.modulePackage = { }; |
| 79 | + var pack = path.join(cmd.name, 'package'); |
| 80 | + try { modulePackage = require(path.join(cmd.mainDir, pack)); } |
| 81 | + catch(err){ |
| 82 | + cmd.modulePackage = err; |
| 83 | + return cmd; |
| 84 | + } |
| 85 | + try { cliPackage = require(path.join(cmd.globalDir, pack)); } |
| 86 | + catch(err){ |
| 87 | + cmd.cliPackage = err; |
| 88 | + copyFields(cmd, modulePackage); |
| 89 | + return cmd; |
| 90 | + } |
| 91 | + |
| 92 | + copyFields(cmd, modulePackage, cliPackage); |
| 93 | + return cmd; |
| 94 | +} |
| 95 | + |
| 96 | + |
| 97 | + |
| 98 | +function check(cmd){ |
| 99 | + var cmdIs = type(cmd); |
| 100 | + var typeError = !cmdIs.match(/string|plainObject/); |
| 101 | + if( typeError ){ throw new TypeError('`cmd` should be string or object'); } |
| 102 | + cmd = cmdIs.plainObject || { name : cmdIs.string }; |
| 103 | + if( !cmd.name ){ throw new Error('give a name to search'); } |
| 104 | + cmd.name = cmd.name.toLowerCase(); |
| 105 | + return cmd; |
| 106 | +} |
| 107 | + |
| 108 | +function copyFields(cmd, modulePackage, cliPackage){ |
| 109 | + if( !exports.packageFields.length ){ return ; } |
| 110 | + exports.packageFields.forEach(function(field){ |
| 111 | + if( cliPackage && cliPackage[field] ){ |
| 112 | + cmd.cliPackage[field] = cliPackage[field]; |
| 113 | + } |
| 114 | + if( modulePackage && modulePackage[field] ){ |
| 115 | + cmd.modulePackage[field] = modulePackage[field]; |
| 116 | + } |
| 117 | + }); |
| 118 | +} |
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