chore(windows): make install portable to windows (#4779)

* chore(install)
- make preinstall hook windows portable
- make link-packages script use junction symlinks for windows

* use npx

* run preinstll in appveyor

* remove win32 check, pin dep (and update .npmrc)

.npmrc

@@ -1,3 +1,4 @@
 loglevel=warn
 progress=false
 package-lock=false
+save-exact=true

appveyor.yml

@@ -64,6 +64,7 @@ install:
   # clean cache to prevent install permission issues
   - npm cache clean --force
   # install root modules only, and retry automatically if install fails
+  - npm run preinstall
   - npm install --ignore-scripts || npm install --ignore-scripts || npm install --ignore-scripts
   - .\node_modules\.bin\print-arch
   # because we skipped scripts, we need to do

package.json

@@ -31,7 +31,7 @@
     "dev-debug": "node ./scripts/debug.js dev",
     "docker": "./scripts/run-docker-local.sh",
     "effective:circle:config": "circleci config process circle.yml | sed /^#/d",
-    "preinstall": "rm -rf node_modules/@packages || true",
+    "preinstall": "npx shx rm -rf node_modules/@packages",
     "postinstall": "echo 'root postinstall' && npm run link && npm run all install && npm run build",
     "install-filtered": "npm run all install -- --package $(node ./scripts/check-deps.js --list)",
     "jscodeshift": "jscodeshift -t ./node_modules/js-codemod/transforms/arrow-function-arguments.js",
@@ -151,6 +151,7 @@
     "proxyquire": "2.1.0",
     "ramda": "0.24.1",
     "shelljs": "0.8.3",
+    "shx": "0.3.2",
     "sinon": "7.3.2",
     "snap-shot-it": "7.8.0",
     "stop-only": "3.0.1",

scripts/link-packages.js

@@ -32,18 +32,11 @@ function makeLinks () {
       const basename = path.basename(dirname)
 
       const destinationLink = path.join(pathToPackages, basename)
-      // const registerPath = path.join(destinationFolder, 'register.js')
-      // const fullMain = path.resolve(dirname, json.main)
-
-      // debug('full name', fullMain)
-      // const relativePathToMain = path.relative(destinationFolder, fullMain)
-
-      // debug('relative path to main', relativePathToMain)
       const relativePathToDest = path.relative(path.dirname(destinationLink), dirname)
 
       console.log(destinationLink, '->', relativePathToDest)
 
-      return fs.symlink(relativePathToDest, destinationLink)
+      return fs.symlink(relativePathToDest, destinationLink, 'junction')
     })
   })
 }