feat: add ps1 scripts (#6548)

* add ps1 scripts

Resolves UNC path issues because powershell.exe
supports UNC, while cmd.exe doesn't.
(Which is why npm.cmd doesn't work within
UNC paths, even under powershell)

Resolves #6280

* fixup: add tests and prefix for ps1 scripts

---------

Co-authored-by: Luke Karrys <luke@lukekarrys.com>

bin/npm.ps1

@@ -0,0 +1,35 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+
+$nodeexe = "node$exe"
+$nodebin = $(Get-Command $nodeexe -ErrorAction SilentlyContinue -ErrorVariable F).Source
+if ($nodebin -eq $null) {
+  Write-Host "$nodeexe not found."
+  exit 1
+}
+$nodedir = $(New-Object -ComObject Scripting.FileSystemObject).GetFile("$nodebin").ParentFolder.Path
+
+$npmclijs="$nodedir/node_modules/npm/bin/npm-cli.js"
+$npmprefix=(& $nodeexe $npmclijs prefix -g)
+if ($LASTEXITCODE -ne 0) {
+  Write-Host "Could not determine Node.js install directory"
+  exit 1
+}
+$npmprefixclijs="$npmprefix/node_modules/npm/bin/npm-cli.js"
+
+# Support pipeline input
+if ($MyInvocation.ExpectingInput) {
+  $input | & $nodeexe $npmprefixclijs $args
+} else {
+  & $nodeexe $npmprefixclijs $args
+}
+$ret=$LASTEXITCODE
+exit $ret

bin/npx.ps1

@@ -0,0 +1,35 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+
+$nodeexe = "node$exe"
+$nodebin = $(Get-Command $nodeexe -ErrorAction SilentlyContinue -ErrorVariable F).Source
+if ($nodebin -eq $null) {
+  Write-Host "$nodeexe not found."
+  exit 1
+}
+$nodedir = $(New-Object -ComObject Scripting.FileSystemObject).GetFile("$nodebin").ParentFolder.Path
+
+$npmclijs="$nodedir/node_modules/npm/bin/npm-cli.js"
+$npmprefix=(& $nodeexe $npmclijs prefix -g)
+if ($LASTEXITCODE -ne 0) {
+  Write-Host "Could not determine Node.js install directory"
+  exit 1
+}
+$npmprefixclijs="$npmprefix/node_modules/npm/bin/npx-cli.js"
+
+# Support pipeline input
+if ($MyInvocation.ExpectingInput) {
+  $input | & $nodeexe $npmprefixclijs $args
+} else {
+  & $nodeexe $npmprefixclijs $args
+}
+$ret=$LASTEXITCODE
+exit $ret

test/bin/windows-shims.js

@@ -1,6 +1,6 @@
 const t = require('tap')
 const { spawnSync } = require('child_process')
-const { resolve, join, extname, basename } = require('path')
+const { resolve, join, extname, basename, sep } = require('path')
 const { readFileSync, chmodSync, readdirSync } = require('fs')
 const Diff = require('diff')
 const { sync: which } = require('which')
@@ -18,6 +18,12 @@ const SHIMS = readdirSync(BIN).reduce((acc, shim) => {
 
 const SHIM_EXTS = [...new Set(Object.keys(SHIMS).map(p => extname(p)))]
 
+// windows requires each segment of a command path to be quoted when using shell: true
+const quotePath = (cmd) => cmd
+  .split(sep)
+  .map(p => p.includes(' ') ? `"${p}"` : p)
+  .join(sep)
+
 t.test('shim contents', t => {
   // these scripts should be kept in sync so this tests the contents of each
   // and does a diff to ensure the only differences between them are necessary
@@ -49,6 +55,13 @@ t.test('shim contents', t => {
     t.strictSame([...letters], ['M', 'X'], 'all other changes are m->x')
     t.end()
   })
+
+  t.test('pwsh', t => {
+    const { diff, letters } = diffFiles(SHIMS['npm.ps1'], SHIMS['npx.ps1'])
+    t.equal(diff.length, 0)
+    t.strictSame([...letters], ['M', 'X'], 'all other changes are m->x')
+    t.end()
+  })
 })
 
 t.test('run shims', t => {
@@ -133,6 +146,7 @@ t.test('run shims', t => {
 
   const shells = Object.entries({
     cmd: 'cmd',
+    pwsh: 'pwsh',
     git: join(ProgramFiles, 'Git', 'bin', 'bash.exe'),
     'user git': join(ProgramFiles, 'Git', 'usr', 'bin', 'bash.exe'),
     wsl: join(SystemRoot, 'System32', 'bash.exe'),
@@ -197,6 +211,11 @@ t.test('run shims', t => {
       case 'bash.exe':
         args.push(bin)
         break
+      case 'pwsh.exe':
+        cmd = quotePath(cmd)
+        args.push(`${bin}.ps1`)
+        opts.shell = true
+        break
       default:
         throw new Error('unknown shell')
     }