internal: add clang-format git hook to devcontainer (#2226)

.devcontainer/Dockerfile

@@ -0,0 +1,9 @@
+FROM mcr.microsoft.com/devcontainers/javascript-node:22
+
+RUN apt-get update \
+	&& apt-get install --no-install-recommends -y \
+	clang-format-15 \
+	# Clean cache
+	&& apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false \
+	&& apt-get clean -y && rm -rf /var/lib/apt/lists/* \
+	&& mv /usr/bin/clang-format-15 /usr/bin/clang-format

.devcontainer/devcontainer.json

@@ -1,6 +1,8 @@
 {
-    "name": "Node.js Codespace",
-    "image": "mcr.microsoft.com/devcontainers/javascript-node:22",
-    "postCreateCommand": "yarn",
-    "remoteUser": "node"
+  "name": "SkyMP Codespace",
+  "build": {
+    "dockerfile": "Dockerfile"
+  },
+  "postCreateCommand": "mkdir -p .git/hooks && ln -sf $(pwd)/misc/git-hooks/pre-commit .git/hooks/pre-commit && chmod +x misc/git-hooks/pre-commit && cd misc/git-hooks && npm install simple-git",
+  "remoteUser": "node"
 }

misc/git-hooks/.gitignore

@@ -0,0 +1 @@
+node_modules

misc/git-hooks/clang-format-hook.js

@@ -0,0 +1,36 @@
+const { execSync } = require("child_process");
+const simpleGit = require("simple-git");
+
+const extensions = [".cpp", ".h", ".hpp", ".cxx", ".cc"];
+
+(async () => {
+  try {
+    const git = simpleGit();
+    const changedFiles = await git.diff(["--name-only", "--cached"]);
+
+    const filesToFormat = changedFiles
+      .split("\n")
+      .filter(
+        (file) =>
+          extensions.some((ext) => file.endsWith(ext)) && file.trim() !== ""
+      );
+
+    if (filesToFormat.length === 0) {
+      console.log("No files to format.");
+      process.exit(0);
+    }
+
+    console.log("Formatting files:");
+    filesToFormat.forEach((file) => {
+      console.log(`  - ${file}`);
+      execSync(`clang-format -i ${file}`, { stdio: "inherit" });
+      execSync(`git add ${file}`);
+    });
+
+    console.log("Formatting completed and changes staged.");
+  } catch (err) {
+    console.error("Error during formatting:", err.message);
+    console.error("Autofix failed. Commit aborted.");
+    process.exit(1);
+  }
+})();

misc/git-hooks/package.json

@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "simple-git": "^3.27.0"
+  }
+}

misc/git-hooks/pre-commit

@@ -0,0 +1,2 @@
+#!/bin/sh
+node misc/git-hooks/clang-format-hook.js