Add scripts that can be used to ensure format

scripts/clang-format-linux.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "${SCRIPT_DIR}/.." && pwd)"
+
+TEST_MODE=0
+if [[ $# -gt 1 ]]; then
+  echo "Unknown arguments. Supported flags: --test, -t" >&2
+  exit 2
+fi
+
+if [[ $# -eq 1 ]]; then
+  if [[ "${1:-}" == "--test" || "${1:-}" == "-t" ]]; then
+    TEST_MODE=1
+  else
+    echo "Unknown argument: ${1:-}. Supported flags: --test, -t" >&2
+    exit 2
+  fi
+fi
+
+cd "${REPO_ROOT}"
+
+if ! VERSION_OUTPUT="$(clang-format --version 2>/dev/null)"; then
+  echo "Unable to run clang-format --version. Make sure clang-format is in PATH." >&2
+  exit 127
+fi
+
+if [[ "${VERSION_OUTPUT}" =~ clang-format[[:space:]]+version[[:space:]]+([0-9]+(\.[0-9]+)*) ]]; then
+  VERSION="${BASH_REMATCH[1]}"
+  echo "Running using clang-format ${VERSION}"
+else
+  echo "Running using ${VERSION_OUTPUT}"
+fi
+
+find . \( -name '*.h' -or -name '*.cpp' -or -name '*.c' -or -name '*.mm' -or -name '*.m' \) -print0 | xargs -0 clang-format -style=file -i
+
+if [[ "${TEST_MODE}" -eq 1 ]]; then
+  BASE_SHA="$(git rev-parse HEAD)"
+  git diff "${BASE_SHA}"
+  if [[ "$(git diff "${BASE_SHA}")" != "" ]]; then
+    exit 1
+  fi
+fi

scripts/clang-format-macos.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "${SCRIPT_DIR}/.." && pwd)"
+
+TEST_MODE=0
+if [[ $# -gt 1 ]]; then
+  echo "Unknown arguments. Supported flags: --test, -t" >&2
+  exit 2
+fi
+
+if [[ $# -eq 1 ]]; then
+  if [[ "${1:-}" == "--test" || "${1:-}" == "-t" ]]; then
+    TEST_MODE=1
+  else
+    echo "Unknown argument: ${1:-}. Supported flags: --test, -t" >&2
+    exit 2
+  fi
+fi
+
+cd "${REPO_ROOT}"
+
+if ! VERSION_OUTPUT="$(clang-format --version 2>/dev/null)"; then
+  echo "Unable to run clang-format --version. Make sure clang-format is in PATH." >&2
+  exit 127
+fi
+
+if [[ "${VERSION_OUTPUT}" =~ clang-format[[:space:]]+version[[:space:]]+([0-9]+(\.[0-9]+)*) ]]; then
+  VERSION="${BASH_REMATCH[1]}"
+  echo "Running using clang-format ${VERSION}"
+else
+  echo "Running using ${VERSION_OUTPUT}"
+fi
+
+find . \( -name '*.h' -or -name '*.cpp' -or -name '*.c' -or -name '*.mm' -or -name '*.m' \) -print0 | xargs -0 clang-format -style=file -i
+
+if [[ "${TEST_MODE}" -eq 1 ]]; then
+  BASE_SHA="$(git rev-parse HEAD)"
+  git diff "${BASE_SHA}"
+  if [[ "$(git diff "${BASE_SHA}")" != "" ]]; then
+    exit 1
+  fi
+fi

scripts/clang-format-windows.cmd

@@ -0,0 +1,6 @@
+@echo off
+setlocal
+
+set "SCRIPT_DIR=%~dp0"
+powershell -NoProfile -ExecutionPolicy Bypass -File "%SCRIPT_DIR%clang-format-windows.ps1" %*
+exit /b %ERRORLEVEL%

scripts/clang-format-windows.ps1

@@ -0,0 +1,62 @@
+$ErrorActionPreference = "Stop"
+Set-StrictMode -Version Latest
+
+$test = $false
+foreach ($arg in $args) {
+    switch ($arg) {
+        "--test" { $test = $true; continue }
+        "-test" { $test = $true; continue }
+        "-t" { $test = $true; continue }
+        default {
+            Write-Error "Unknown argument: $arg. Supported flags: --test, -test, -t"
+            exit 2
+        }
+    }
+}
+
+$repoRoot = (Resolve-Path "$PSScriptRoot/..").Path
+Set-Location $repoRoot
+
+$clangFormatCommand = Get-Command clang-format -ErrorAction SilentlyContinue
+if (-not $clangFormatCommand) {
+    Write-Error "Unable to find clang-format in PATH."
+    exit 127
+}
+
+$clangFormat = $clangFormatCommand.Source
+$versionOutput = & $clangFormat --version
+if ($LASTEXITCODE -ne 0 -or [string]::IsNullOrWhiteSpace($versionOutput)) {
+    Write-Error "Unable to run clang-format --version. Make sure clang-format is in PATH."
+    exit 127
+}
+
+$versionMatch = [regex]::Match($versionOutput, "clang-format version ([0-9]+(\.[0-9]+)*)")
+if ($versionMatch.Success) {
+    Write-Host "Running using clang-format $($versionMatch.Groups[1].Value)"
+}
+else {
+    Write-Host "Running using $versionOutput"
+}
+
+$extensions = @("*.h", "*.cpp", "*.c", "*.mm", "*.m")
+$files = Get-ChildItem -Path . -Recurse -File | Where-Object {
+    $name = $_.Name
+    foreach ($ext in $extensions) {
+        if ($name -clike $ext) {
+            return $true
+        }
+    }
+    return $false
+}
+
+foreach ($file in $files) {
+    & $clangFormat -style=file -i $file.FullName
+}
+
+if ($test) {
+    $baseSha = "$(git rev-parse HEAD)".Trim()
+    git diff $baseSha
+    if ("$(git diff $baseSha)" -ne "") {
+        exit 1
+    }
+}