Add upgrade scripts for basic MikroORM migrations

src/v8/mikro-orm-base-entity-generic.ts

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+import { readFile, writeFile } from "fs/promises";
+import { glob } from "glob";
+
+/**
+ * BaseEntity no longer has generic type arguments.
+ * See https://mikro-orm.io/docs/upgrading-v5-to-v6#baseentity-no-longer-has-generic-type-arguments.
+ */
+export default async function removeGenericFromBaseEntity() {
+    const files: string[] = glob.sync(["api/src/**/*.entity.ts"]);
+
+    for (const filePath of files) {
+        let fileContent = await readFile(filePath, "utf-8");
+
+        fileContent = fileContent.replaceAll(/BaseEntity<.*>/g, "BaseEntity");
+
+        await writeFile(filePath, fileContent);
+    }
+}

src/v8/mikro-orm-custom-type.ts

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+import { readFile, writeFile } from "fs/promises";
+import { glob } from "glob";
+
+/**
+ * Custom type has been removed in favor of just type.
+ * See https://mikro-orm.io/docs/upgrading-v5-to-v6#removed-propertyoptionscustomtype-in-favour-of-just-type.
+ */
+export default async function replaceCustomType() {
+    const files: string[] = glob.sync(["api/src/**/*.entity.ts"]);
+
+    for (const filePath of files) {
+        let fileContent = await readFile(filePath, "utf-8");
+
+        fileContent = fileContent.replaceAll("customType:", "type:");
+
+        await writeFile(filePath, fileContent);
+    }
+}

src/v8/mikro-orm-delete-rule.ts

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+import { readFile, writeFile } from "fs/promises";
+import { glob } from "glob";
+
+/**
+ * onDelete has been renamed to deleteRule.
+ * See https://mikro-orm.io/docs/upgrading-v5-to-v6#renames.
+ */
+export default async function renameOnDelete() {
+    const files: string[] = glob.sync(["api/src/**/*.entity.ts"]);
+
+    for (const filePath of files) {
+        let fileContent = await readFile(filePath, "utf-8");
+
+        fileContent = fileContent.replaceAll("onDelete:", "deleteRule:");
+
+        await writeFile(filePath, fileContent);
+    }
+}

src/v8/mikro-orm-dotenv.ts

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+import { existsSync } from "fs";
+import { readFile, writeFile } from "fs/promises";
+
+/**
+ * Add a dotenv call to config.
+ * See https://mikro-orm.io/docs/upgrading-v5-to-v6#env-files-are-no-longer-automatically-loaded.
+ */
+export default async function addDotenvCallToConfig() {
+    if (!existsSync("api/src/db/ormconfig.cli.ts")) {
+        return;
+    }
+
+    let fileContent = await readFile("api/src/db/ormconfig.cli.ts", "utf-8");
+
+    fileContent = `import "dotenv/config";\n\n${fileContent}`;
+
+    await writeFile("api/src/db/ormconfig.cli.ts", fileContent);
+}

src/v8/mikro-orm-imports.ts

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+import { readFile, writeFile } from "fs/promises";
+import { glob } from "glob";
+
+/**
+ * Always import form `@mikro-orm/postgresql`.
+ * See https://mikro-orm.io/docs/upgrading-v5-to-v6#all-drivers-now-re-export-the-mikro-ormcore-package.
+ */
+export default async function replaceImports() {
+    const files: string[] = glob.sync(["api/src/**/*.entity.ts"]);
+
+    for (const filePath of files) {
+        let fileContent = await readFile(filePath, "utf-8");
+
+        fileContent = fileContent.replaceAll("@mikro-orm/core", "@mikro-orm/postgresql");
+
+        await writeFile(filePath, fileContent);
+    }
+}

src/v8/mikro-orm-ormconfig.ts

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+import { Project, SyntaxKind } from "ts-morph";
+
+/**
+ * Wrap the config in createOrmConfig with defineConfig
+ */
+export default async function replaceCustomType() {
+    const project = new Project({ tsConfigFilePath: "./api/tsconfig.json" });
+
+    const sourceFile = project.getSourceFile("api/src/db/ormconfig.ts");
+
+    if (!sourceFile) {
+        return;
+    }
+
+    sourceFile.addImportDeclaration({
+        namedImports: ["defineConfig"],
+        moduleSpecifier: "@mikro-orm/postgresql",
+    });
+
+    const config = sourceFile
+        .getVariableStatementOrThrow("ormConfig")
+        .getDeclarations()[0]
+        .getInitializerIfKindOrThrow(SyntaxKind.CallExpression)
+        .getArguments()[0];
+
+    config.replaceWithText(`defineConfig(${config.getText()})`);
+
+    await sourceFile.save();
+}