Proper Powershell JSON Formatting

Format-Json.ps1

# https://github.com/PowerShell/PowerShell/issues/2736
# https://github.com/PowerShell/PowerShell/issues/8604


function Format-Json([Parameter(Mandatory, ValueFromPipeline)]$json) {
  if ($json -isnot [string]) { $json = $json | ConvertTo-Json -Depth 10; }

  $indent = 0;
  $lines = $json.Split("`n", [System.StringSplitOptions]::RemoveEmptyEntries);
  for (($len = $lines.Length), ($i = 0); $i -lt $len; $i++) {
    $line = $lines[$i];
    # This line contains  ] or }, decrement the indentation level
    if (($indent -gt 0) -and ($line -match '[\}\]]')) { $indent -= 2; }

    $lines[$i] = [string]::Concat([string]::new(' ', $indent), $line.TrimStart().Replace(':  ', ': '));

    # This line contains [ or {, increment the indentation level
    if ($line -match '[\{\[]') { $indent += 2; }
  }
  $result = [string]::Join("`n", $lines);
  $result
}

function Pretty-Json([Parameter(Mandatory, ValueFromPipeline)]$json) {
  ($json | Format-Json).Replace('\\"', "'").Replace('\\', '\')
}