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 | , npa = require("npm-package-arg")
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14 |
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15 | module.exports = link
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16 |
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17 | link.usage = "npm link (in package dir)"
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18 | + "\nnpm link <pkg> (link global into local)"
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19 |
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20 | link.completion = function (opts, cb) {
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21 | var dir = npm.globalDir
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22 | fs.readdir(dir, function (er, files) {
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23 | cb(er, files.filter(function (f) {
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24 | return !f.match(/^[\._-]/)
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25 | }))
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26 | })
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27 | }
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28 |
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29 | function link (args, cb) {
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30 | if (process.platform === "win32") {
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31 | var semver = require("semver")
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32 | if (!semver.satisfies(process.version, ">=0.7.9")) {
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33 | var msg = "npm link not supported on windows prior to node 0.7.9"
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34 | , e = new Error(msg)
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35 | e.code = "ENOTSUP"
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36 | e.errno = require("constants").ENOTSUP
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37 | return cb(e)
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38 | }
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39 | }
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40 |
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41 | if (npm.config.get("global")) {
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42 | return cb(new Error("link should never be --global.\n"
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43 | +"Please re-run this command with --local"))
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44 | }
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45 |
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46 | if (args.length === 1 && args[0] === ".") args = []
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47 | if (args.length) return linkInstall(args, cb)
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48 | linkPkg(npm.prefix, cb)
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49 | }
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50 |
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51 | function linkInstall (pkgs, cb) {
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52 | asyncMap(pkgs, function (pkg, cb) {
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53 | var t = path.resolve(npm.globalDir, "..")
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54 | , pp = path.resolve(npm.globalDir, pkg)
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55 | , rp = null
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56 | , target = path.resolve(npm.dir, pkg)
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57 |
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58 | function n (er, data) {
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59 | if (er) return cb(er, data)
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60 |
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61 |
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62 | var d = data.filter(function (d) { return !d[3] })
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63 | var what = npa(d[0][0])
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64 | pp = d[0][1]
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65 | pkg = what.name
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66 | target = path.resolve(npm.dir, pkg)
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67 | next()
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68 | }
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69 |
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70 |
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71 |
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72 | if (pkg[0] !== "@" && (pkg.indexOf("/") !== -1 || pkg.indexOf("\\") !== -1)) {
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73 | return fs.lstat(path.resolve(pkg), function (er, st) {
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74 | if (er || !st.isDirectory()) {
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75 | npm.commands.install(t, pkg, n)
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76 | } else {
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77 | rp = path.resolve(pkg)
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78 | linkPkg(rp, n)
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79 | }
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80 | })
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81 | }
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82 |
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83 | fs.lstat(pp, function (er, st) {
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84 | if (er) {
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85 | rp = pp
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86 | return npm.commands.install(t, pkg, n)
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87 | } else if (!st.isSymbolicLink()) {
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88 | rp = pp
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89 | next()
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90 | } else {
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91 | return fs.realpath(pp, function (er, real) {
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92 | if (er) log.warn("invalid symbolic link", pkg)
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93 | else rp = real
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94 | next()
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95 | })
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96 | }
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97 | })
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98 |
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99 | function next () {
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100 | chain
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101 | ( [ [npm.commands, "unbuild", [target]]
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102 | , [function (cb) {
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103 | log.verbose("link", "symlinking %s to %s", pp, target)
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104 | cb()
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105 | }]
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106 | , [symlink, pp, target]
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107 |
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108 | , rp && [build, [target]]
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109 | , [ resultPrinter, pkg, pp, target, rp ] ]
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110 | , cb )
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111 | }
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112 | }, cb)
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113 | }
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114 |
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115 | function linkPkg (folder, cb_) {
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116 | var me = folder || npm.prefix
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117 | , readJson = require("read-package-json")
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118 |
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119 | log.verbose("linkPkg", folder)
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120 |
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121 | readJson(path.resolve(me, "package.json"), function (er, d) {
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122 | function cb (er) {
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123 | return cb_(er, [[d && d._id, target, null, null]])
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124 | }
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125 | if (er) return cb(er)
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126 | if (!d.name) {
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127 | er = new Error("Package must have a name field to be linked")
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128 | return cb(er)
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129 | }
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130 | var target = path.resolve(npm.globalDir, d.name)
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131 | rm(target, function (er) {
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132 | if (er) return cb(er)
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133 | symlink(me, target, function (er) {
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134 | if (er) return cb(er)
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135 | log.verbose("link", "build target", target)
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136 |
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137 | npm.commands.install(me, [], function (er) {
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138 | if (er) return cb(er)
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139 |
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140 |
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141 | build([target], true, build._noLC, true, function (er) {
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142 | if (er) return cb(er)
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143 | resultPrinter(path.basename(me), me, target, cb)
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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 | }
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150 |
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151 | function resultPrinter (pkg, src, dest, rp, cb) {
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152 | if (typeof cb !== "function") cb = rp, rp = null
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153 | var where = dest
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154 | rp = (rp || "").trim()
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155 | src = (src || "").trim()
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156 |
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157 | if (npm.config.get("parseable")) {
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158 | return parseableOutput(dest, rp || src, cb)
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159 | }
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160 | if (rp === src) rp = null
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161 | console.log(where + " -> " + src + (rp ? " -> " + rp: ""))
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162 | cb()
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163 | }
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164 |
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165 | function parseableOutput (dest, rp, cb) {
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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 |
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172 |
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173 | console.log(dest + "::" + rp)
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174 | cb()
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175 | }
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