1 |
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2 |
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3 |
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4 | var npm = require("./npm.js")
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5 | , symlink = require("./utils/link.js")
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6 | , fs = require("graceful-fs")
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7 | , log = require("npmlog")
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8 | , asyncMap = require("slide").asyncMap
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9 | , chain = require("slide").chain
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10 | , path = require("path")
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11 | , rm = require("./utils/gently-rm.js")
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12 | , build = require("./build.js")
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13 |
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14 | module.exports = link
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15 |
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16 | link.usage = "npm link (in package dir)"
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17 | + "\nnpm link <pkg> (link global into local)"
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18 |
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19 | link.completion = function (opts, cb) {
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20 | var dir = npm.globalDir
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21 | fs.readdir(dir, function (er, files) {
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22 | cb(er, files.filter(function (f) {
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23 | return !f.match(/^[\._-]/)
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24 | }))
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25 | })
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26 | }
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27 |
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28 | function link (args, cb) {
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29 | if (process.platform === "win32") {
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30 | var semver = require("semver")
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31 | if (!semver.satisfies(process.version, ">=0.7.9")) {
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32 | var msg = "npm link not supported on windows prior to node 0.7.9"
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33 | , e = new Error(msg)
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34 | e.code = "ENOTSUP"
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35 | e.errno = require("constants").ENOTSUP
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36 | return cb(e)
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37 | }
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38 | }
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39 |
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40 | if (npm.config.get("global")) {
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41 | return cb(new Error("link should never be --global.\n"
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42 | +"Please re-run this command with --local"))
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43 | }
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44 |
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45 | if (args.length === 1 && args[0] === ".") args = []
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46 | if (args.length) return linkInstall(args, cb)
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47 | linkPkg(npm.prefix, cb)
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48 | }
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49 |
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50 | function linkInstall (pkgs, cb) {
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51 | asyncMap(pkgs, function (pkg, cb) {
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52 | function n (er, data) {
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53 | if (er) return cb(er, data)
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54 |
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55 |
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56 | var d = data.filter(function (d) { return !d[3] })
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57 | pp = d[0][1]
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58 | pkg = path.basename(pp)
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59 | target = path.resolve(npm.dir, pkg)
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60 | next()
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61 | }
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62 |
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63 | var t = path.resolve(npm.globalDir, "..")
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64 | , pp = path.resolve(npm.globalDir, pkg)
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65 | , rp = null
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66 | , target = path.resolve(npm.dir, pkg)
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67 |
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68 |
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69 |
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70 | if (pkg.indexOf("/") !== -1 || pkg.indexOf("\\") !== -1) {
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71 | return fs.lstat(path.resolve(pkg), function (er, st) {
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72 | if (er || !st.isDirectory()) {
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73 | npm.commands.install(t, pkg, n)
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74 | } else {
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75 | rp = path.resolve(pkg)
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76 | linkPkg(rp, n)
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77 | }
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78 | })
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79 | }
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80 |
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81 | fs.lstat(pp, function (er, st) {
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82 | if (er) {
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83 | rp = pp
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84 | return npm.commands.install(t, pkg, n)
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85 | } else if (!st.isSymbolicLink()) {
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86 | rp = pp
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87 | next()
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88 | } else {
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89 | return fs.realpath(pp, function (er, real) {
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90 | if (er) log.warn("invalid symbolic link", pkg)
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91 | else rp = real
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92 | next()
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93 | })
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94 | }
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95 | })
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96 |
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97 | function next () {
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98 | chain
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99 | ( [ [npm.commands, "unbuild", [target]]
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100 | , [function (cb) {
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101 | log.verbose("link", "symlinking %s to %s", pp, target)
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102 | cb()
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103 | }]
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104 | , [symlink, pp, target]
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105 |
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106 | , rp && [build, [target]]
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107 | , [ resultPrinter, pkg, pp, target, rp ] ]
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108 | , cb )
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109 | }
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110 | }, cb)
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111 | }
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112 |
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113 | function linkPkg (folder, cb_) {
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114 | var me = folder || npm.prefix
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115 | , readJson = require("read-package-json")
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116 |
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117 | log.verbose("linkPkg", folder)
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118 |
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119 | readJson(path.resolve(me, "package.json"), function (er, d) {
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120 | function cb (er) {
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121 | return cb_(er, [[d && d._id, target, null, null]])
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122 | }
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123 | if (er) return cb(er)
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124 | if (!d.name) {
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125 | er = new Error("Package must have a name field to be linked")
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126 | return cb(er)
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127 | }
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128 | var target = path.resolve(npm.globalDir, d.name)
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129 | rm(target, function (er) {
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130 | if (er) return cb(er)
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131 | symlink(me, target, function (er) {
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132 | if (er) return cb(er)
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133 | log.verbose("link", "build target", target)
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134 |
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135 | npm.commands.install(me, [], function (er, installed) {
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136 | if (er) return cb(er)
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137 |
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138 |
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139 | build([target], true, build._noLC, true, function (er) {
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140 | if (er) return cb(er)
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141 | resultPrinter(path.basename(me), me, target, cb)
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142 | })
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143 | })
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144 | })
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145 | })
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146 | })
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147 | }
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148 |
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149 | function resultPrinter (pkg, src, dest, rp, cb) {
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150 | if (typeof cb !== "function") cb = rp, rp = null
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151 | var where = dest
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152 | rp = (rp || "").trim()
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153 | src = (src || "").trim()
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154 |
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155 | if (npm.config.get("parseable")) {
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156 | return parseableOutput(dest, rp || src, cb)
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157 | }
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158 | if (rp === src) rp = null
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159 | console.log(where + " -> " + src + (rp ? " -> " + rp: ""))
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160 | cb()
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161 | }
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162 |
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163 | function parseableOutput (dest, rp, cb) {
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164 |
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165 |
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166 |
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167 |
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168 |
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169 |
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170 |
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171 | console.log(dest + "::" + rp)
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172 | cb()
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173 | }
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