From 0c870f6fb6bf4f35033afabc4dbd44eeafdc2e97 Mon Sep 17 00:00:00 2001
From: Emanuele Stoppa <my.burning@gmail.com>
Date: Fri, 18 Jun 2021 18:41:02 +0100
Subject: [PATCH] feat(project): support ignore files for eslint and prettier
 (#1577)

---
 internal/project/constants.ts |  5 +++++
 internal/project/load.ts      | 20 ++++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/internal/project/constants.ts b/internal/project/constants.ts
index 81596441df4..7ebd4e7512e 100644
--- a/internal/project/constants.ts
+++ b/internal/project/constants.ts
@@ -23,6 +23,11 @@ export const PRETTIER_CONFIG_FILESNAMES: string[] = [
 	".prettierr.json5",
 ];
 
+export const INTEGRATIONS_IGNORE_FILES: string[] = [
+	".prettierignore",
+	".eslintignore",
+];
+
 export const PROJECT_CONFIG_PACKAGE_JSON_FIELD = "rome";
 export const PROJECT_CONFIG_DIRECTORY = ".config";
 export const PROJECT_CONFIG_FILENAMES: string[] = [];
diff --git a/internal/project/load.ts b/internal/project/load.ts
index 482d7a158bd..7fdf67388d5 100644
--- a/internal/project/load.ts
+++ b/internal/project/load.ts
@@ -31,6 +31,7 @@ import {CachedFileReader} from "@internal/fs";
 import {parseSemverRange} from "@internal/codec-semver";
 import {descriptions} from "@internal/diagnostics";
 import {
+	INTEGRATIONS_IGNORE_FILES,
 	PRETTIER_CONFIG_FILESNAMES,
 	PROJECT_CONFIG_PACKAGE_JSON_FIELD,
 	VCS_IGNORE_FILENAMES,
@@ -119,6 +120,7 @@ export async function loadCompleteProjectConfig(
 	// Load extensions configuration of prettier
 	for (const prettierFile of PRETTIER_CONFIG_FILESNAMES) {
 		const possiblePath = projectDirectory.append(prettierFile);
+		meta.configDependencies.add(possiblePath);
 		if (await possiblePath.exists()) {
 			const file = await reader.readFileText(possiblePath);
 			const prettierConfig = loadPrettier(file, possiblePath.getExtensions());
@@ -129,6 +131,24 @@ export async function loadCompleteProjectConfig(
 		}
 	}
 
+	// read ignore files
+	for (const fileToIgnore of INTEGRATIONS_IGNORE_FILES) {
+		const possiblePath = projectDirectory.append(fileToIgnore);
+		meta.configDependencies.add(possiblePath);
+		if (await possiblePath.exists()) {
+			const file = await reader.readFileText(possiblePath);
+
+			consumer.handleThrownDiagnostics(() => {
+				const patterns = parsePathPatternsFile({
+					input: file,
+					path: possiblePath,
+				});
+
+				config.lint.ignore = [...config.lint.ignore, ...patterns];
+			});
+		}
+	}
+
 	// Calculate config hash keys
 	await Promise.all(
 		Array.from(