From 7e12f30188d52f15b97125c4593849d73bc129f5 Mon Sep 17 00:00:00 2001
From: Zoltan Kochan <zoltan.kochan@gmail.com>
Date: Sun, 10 Jul 2016 17:22:06 +0300
Subject: [PATCH 1/2] Preserve symlinks on Node.js>=v6.3.0

close #244
---
 lib/install/link_bins.js | 39 ++++++++++++++++++++++++++++++++-------
 1 file changed, 32 insertions(+), 7 deletions(-)

diff --git a/lib/install/link_bins.js b/lib/install/link_bins.js
index a90872497a..d3e7a67f0c 100644
--- a/lib/install/link_bins.js
+++ b/lib/install/link_bins.js
@@ -1,11 +1,14 @@
 var join = require('path').join
 var basename = require('path').basename
+var semver = require('semver')
 var relSymlink = require('../fs/rel_symlink')
 var fs = require('mz/fs')
 var mkdirp = require('../fs/mkdirp')
 var debug = require('debug')('pnpm:link_bins')
 var requireJson = require('../fs/require_json')
 
+var preserveSymlinks = semver.satisfies(process.version, '>=6.3.0')
+
 module.exports = function linkAllBins (modules) {
   getDirectories(modules)
     .reduce((pkgDirs, dir) => pkgDirs.concat(isScopedPkgsDir(dir) ? getDirectories(dir) : dir), [])
@@ -38,25 +41,47 @@ function isScopedPkgsDir (dirPath) {
 
 function linkBins (modules, target) {
   var pkg = tryRequire(join(target, 'package.json'))
+
   if (!pkg || !pkg.bin) return
 
   var bins = binify(pkg)
 
   return Object.keys(bins).map(bin => {
     var actualBin = bins[bin]
+    var externalBinPath = join(modules, '.bin', bin)
 
     return Promise.resolve()
-      .then(_ => fs.chmod(join(target, actualBin), 0o755))
       .then(_ => mkdirp(join(modules, '.bin')))
-      .then(_ => debug('linking %s -> %s',
-        join(target, actualBin),
-        join(modules, '.bin', bin)))
-      .then(_ => relSymlink(
-        join(target, actualBin),
-        join(modules, '.bin', bin)))
+      .then(_ => {
+        if (!preserveSymlinks) {
+          return makeExecutable(join(target, actualBin))
+            .then(_ => debug('linking %s -> %s',
+              join(target, actualBin),
+              externalBinPath))
+            .then(_ => relSymlink(
+              join(target, actualBin),
+              externalBinPath))
+        }
+
+        proxy(externalBinPath, join(pkg.name, actualBin))
+        return makeExecutable(externalBinPath)
+      })
   })
 }
 
+function makeExecutable (filePath) {
+  return fs.chmod(filePath, 0o755)
+}
+
+function proxy (proxyPath, targetPath) {
+  var proxyContent = [
+    '#!/bin/sh',
+    '":" //# comment; exec /usr/bin/env node --preserve-symlinks "$0" "$@"',
+    "require('../" + targetPath + "')"
+  ].join('\n')
+  fs.writeFileSync(proxyPath, proxyContent, 'utf8')
+}
+
 /*
  * Like `require()`, but returns `undefined` when it fails
  */

From a33869e441a12c980a22e694d138153ab12dd432 Mon Sep 17 00:00:00 2001
From: Zoltan Kochan <zoltan.kochan@gmail.com>
Date: Mon, 11 Jul 2016 23:28:12 +0300
Subject: [PATCH 2/2] create command and sh files on windows to link bin files

---
 lib/install/link_bins.js | 45 ++++++++++++++++++++++++++++++++++++++--
 1 file changed, 43 insertions(+), 2 deletions(-)

diff --git a/lib/install/link_bins.js b/lib/install/link_bins.js
index d3e7a67f0c..39c7669227 100644
--- a/lib/install/link_bins.js
+++ b/lib/install/link_bins.js
@@ -63,8 +63,11 @@ function linkBins (modules, target) {
               externalBinPath))
         }
 
-        proxy(externalBinPath, join(pkg.name, actualBin))
-        return makeExecutable(externalBinPath)
+        var targetPath = join(pkg.name, actualBin)
+        if (process.platform !== 'win32') {
+          return proxy(externalBinPath, targetPath)
+        }
+        return cmdShim(externalBinPath, targetPath)
       })
   })
 }
@@ -80,6 +83,44 @@ function proxy (proxyPath, targetPath) {
     "require('../" + targetPath + "')"
   ].join('\n')
   fs.writeFileSync(proxyPath, proxyContent, 'utf8')
+  return makeExecutable(proxyPath)
+}
+
+function cmdShim (proxyPath, targetPath) {
+  var cmdContent = [
+    '@IF EXIST "%~dp0\\node.exe" (',
+    '  "%~dp0\\node.exe --preserve-symlinks"  "%~dp0/../' + targetPath + '" %*',
+    ') ELSE (',
+    '  @SETLOCAL',
+    '  @SET PATHEXT=%PATHEXT:;.JS;=;%',
+    '  node --preserve-symlinks  "%~dp0/../' + targetPath + '" %*',
+    ')'
+  ].join('\n')
+  fs.writeFileSync(proxyPath + '.cmd', cmdContent, 'utf8')
+
+  var shContent = [
+    '#!/bin/sh',
+    'basedir=$(dirname "$(echo "$0" | sed -e \'s,\\,/,g\')")',
+    '',
+    'case `uname` in',
+    '    *CYGWIN*) basedir=`cygpath -w "$basedir"`;;',
+    'esac',
+    '',
+    'if [ -x "$basedir/node" ]; then',
+    '  "$basedir/node --preserve-symlinks"  "$basedir/../' + targetPath + '" "$@"',
+    '  ret=$?',
+    'else ',
+    '  node --preserve-symlinks  "$basedir/../' + targetPath + '" "$@"',
+    '  ret=$?',
+    'fi',
+    'exit $ret',
+    ''
+  ].join('\n')
+  fs.writeFileSync(proxyPath, shContent, 'utf8')
+  return Promise.all([
+    makeExecutable(proxyPath + '.cmd'),
+    makeExecutable(proxyPath)
+  ])
 }
 
 /*