From 966399c3d82252bce748ade000cb9adeeab14b9c Mon Sep 17 00:00:00 2001
From: Ge <g.linevich@reface.ai>
Date: Mon, 9 Mar 2026 11:38:14 +0200
Subject: [PATCH] fix: preserve negation prefix when resolving config patterns

---
 src/config/tolgeerc.ts                              |  9 ++++++---
 .../validTolgeeRc/withNegationPattern.json          |  6 ++++++
 test/unit/config.test.ts                            | 13 +++++++++++++
 3 files changed, 25 insertions(+), 3 deletions(-)
 create mode 100644 test/__fixtures__/validTolgeeRc/withNegationPattern.json

diff --git a/src/config/tolgeerc.ts b/src/config/tolgeerc.ts
index 2bfa2c8..d9402cf 100644
--- a/src/config/tolgeerc.ts
+++ b/src/config/tolgeerc.ts
@@ -60,9 +60,12 @@ function parseConfig(input: Schema, configDir: string) {
 
   // convert relative paths in config to absolute
   if (rc.patterns !== undefined) {
-    rc.patterns = rc.patterns.map((pattern: string) =>
-      resolve(configDir, pattern).replace(/\\/g, '/')
-    );
+    rc.patterns = rc.patterns.map((pattern: string) => {
+      const isNegated = pattern.startsWith('!');
+      const raw = isNegated ? pattern.slice(1) : pattern;
+      const resolved = resolve(configDir, raw).replace(/\\/g, '/');
+      return isNegated ? `!${resolved}` : resolved;
+    });
   }
 
   // convert relative paths in config to absolute
diff --git a/test/__fixtures__/validTolgeeRc/withNegationPattern.json b/test/__fixtures__/validTolgeeRc/withNegationPattern.json
new file mode 100644
index 0000000..b99a57c
--- /dev/null
+++ b/test/__fixtures__/validTolgeeRc/withNegationPattern.json
@@ -0,0 +1,6 @@
+{
+  "$schema": "../../../schema.json",
+  "apiUrl": "https://app.tolgee.io",
+  "projectId": 1337,
+  "patterns": ["./src/**/*.tsx", "!./src/excluded.tsx"]
+}
diff --git a/test/unit/config.test.ts b/test/unit/config.test.ts
index 9d382cf..de13e9e 100644
--- a/test/unit/config.test.ts
+++ b/test/unit/config.test.ts
@@ -84,6 +84,19 @@ describe('.tolgeerc', () => {
     }
   });
 
+  it('preserves negation prefix when resolving patterns', async () => {
+    const path = fileURLToPath(
+      new URL('./validTolgeeRc/withNegationPattern.json', FIXTURES_PATH)
+    );
+
+    const cfg = (await loadTolgeeRc(path))!;
+
+    expect(cfg.patterns!.some((p) => p.startsWith('!'))).toBe(true);
+    for (const pattern of cfg.patterns!) {
+      expect(pattern.lastIndexOf('!')).toBeLessThanOrEqual(0);
+    }
+  });
+
   it('converts projectId to number', async () => {
     const path = fileURLToPath(
       new URL('./validTolgeeRc/withProjectIdString.json', FIXTURES_PATH)