From df9278efd2977240666b19ba3e8a78881491dec8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dud=C3=A1s=20=C3=81d=C3=A1m?= <sir.dudas.adam@gmail.com>
Date: Sun, 27 Dec 2020 00:02:25 +0100
Subject: [PATCH] resolve custom linters' path relative to config file
 directory (#1572)

Resolves golangci/golangci-lint#1085
---
 pkg/lint/lintersdb/manager.go | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/pkg/lint/lintersdb/manager.go b/pkg/lint/lintersdb/manager.go
index c9bbdb9a866b..5bec998854d5 100644
--- a/pkg/lint/lintersdb/manager.go
+++ b/pkg/lint/lintersdb/manager.go
@@ -3,8 +3,10 @@ package lintersdb
 import (
 	"fmt"
 	"os"
+	"path/filepath"
 	"plugin"
 
+	"github.com/spf13/viper"
 	"golang.org/x/tools/go/analysis"
 
 	"github.com/golangci/golangci-lint/pkg/config"
@@ -425,6 +427,16 @@ type AnalyzerPlugin interface {
 }
 
 func (m Manager) getAnalyzerPlugin(path string) (AnalyzerPlugin, error) {
+	if !filepath.IsAbs(path) {
+		// resolve non-absolute paths relative to config file's directory
+		configFilePath := viper.ConfigFileUsed()
+		absConfigFilePath, err := filepath.Abs(configFilePath)
+		if err != nil {
+			return nil, fmt.Errorf("could not get absolute representation of config file path %q: %v", configFilePath, err)
+		}
+		path = filepath.Join(filepath.Dir(absConfigFilePath), path)
+	}
+
 	plug, err := plugin.Open(path)
 	if err != nil {
 		return nil, err