test: tolerate Windows line endings in Docker docs check

src/docker/piWebDockerDocs.test.ts

@@ -48,7 +48,8 @@ describe("pi-web-docker documentation", () => {
 });
 
 function readDockerCommandMatrix(dockerReadme: string): string[] {
-  const commandMatrixSection = dockerReadme.split("### Command matrix\n")[1]?.split("\n### Installer options")[0] ?? "";
+  const normalizedReadme = normalizeLineEndings(dockerReadme);
+  const commandMatrixSection = normalizedReadme.split("### Command matrix\n")[1]?.split("\n### Installer options")[0] ?? "";
   return Array.from(commandMatrixSection.matchAll(/^\| `([^`]+)` \|/gm), (match) => {
     const command = match[1];
     if (command === undefined) throw new Error("Docker command matrix row did not include a command");
@@ -57,7 +58,8 @@ function readDockerCommandMatrix(dockerReadme: string): string[] {
 }
 
 function readEntrypointCommandCases(dockerEntrypoint: string): Set<string> {
-  const commandCaseBlock = dockerEntrypoint.slice(dockerEntrypoint.indexOf('case "$command_name" in'));
+  const normalizedEntrypoint = normalizeLineEndings(dockerEntrypoint);
+  const commandCaseBlock = normalizedEntrypoint.slice(normalizedEntrypoint.indexOf('case "$command_name" in'));
   const commandCases = new Set<string>();
   for (const line of commandCaseBlock.split("\n")) {
     const match = /^ {2}([a-z][a-z-]*(?:\|[a-z][a-z-]*)*)(?:\|__run-detached)?\)$/.exec(line);
@@ -67,6 +69,10 @@ function readEntrypointCommandCases(dockerEntrypoint: string): Set<string> {
   return commandCases;
 }
 
+function normalizeLineEndings(content: string): string {
+  return content.replace(/\r\n?/g, "\n");
+}
+
 async function readRepoFile(relativePath: string): Promise<string> {
   return await readFile(join(repoRoot, relativePath), "utf8");
 }