From c301925f8e5e0d437b94862e5a26699411f0ec57 Mon Sep 17 00:00:00 2001
From: David Baggerman <david@baggerman.id.au>
Date: Thu, 20 Jun 2019 18:26:33 +1000
Subject: [PATCH] fix ignoring .git on absolute paths

---
 processor/file.go      |  4 ++--
 processor/file_test.go | 40 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 42 insertions(+), 2 deletions(-)

diff --git a/processor/file.go b/processor/file.go
index 4ac7ccca..e2cec2d6 100644
--- a/processor/file.go
+++ b/processor/file.go
@@ -123,7 +123,7 @@ func walkDirectoryParallel(root string, output chan *FileJob) {
 			// Need to check if the directory is in the blacklist and if so don't bother adding a goroutine to process it
 			shouldSkip := false
 			for _, black := range PathBlacklist {
-				if strings.HasPrefix(filepath.Join(root, f.Name()), black) {
+				if strings.HasPrefix(filepath.Join(root, f.Name()), filepath.Join(root, black)) {
 					shouldSkip = true
 					if Verbose {
 						printWarn(fmt.Sprintf("skipping directory due to being in blacklist: %s", filepath.Join(root, f.Name())))
@@ -267,7 +267,7 @@ func walkDirectory(toWalk string, blackList []string, extensionLookup map[string
 
 			if info.IsDir() {
 				for _, black := range blackList {
-					if strings.HasPrefix(root, black+"/") || strings.HasPrefix(root, black) {
+					if strings.HasPrefix(root, filepath.Join(toWalk, black)) {
 						if Verbose {
 							printWarn(fmt.Sprintf("skipping directory due to being in blacklist: %s", root))
 						}
diff --git a/processor/file_test.go b/processor/file_test.go
index cd45dc1f..e4a24cad 100644
--- a/processor/file_test.go
+++ b/processor/file_test.go
@@ -2,7 +2,9 @@ package processor
 
 import (
 	"math/rand"
+	"path/filepath"
 	"testing"
+	"strings"
 )
 
 func TestGetExtension(t *testing.T) {
@@ -147,6 +149,44 @@ func TestWalkDirectoryParallelIgnoresRootTrailingSlash(t *testing.T) {
 	}
 }
 
+// Issue #82 - project .git directory not being filtered when using absolute
+// path argument
+func TestWalkDirectoryParallelIgnoresAbsoluteGitPath(t *testing.T) {
+	isLazy = false
+	ProcessConstants()
+
+	// master is a file extension for ASP.NET, and also a filename (almost)
+	// certain to appear in the .git directory.
+	// This test also relies on the behaviour of treating `master` as a file
+	// with the `master` file extension.
+	WhiteListExtensions = []string{"master", "go"}
+	Exclude = []string{"vendor"}
+	PathBlacklist = []string{".git", "vendor"}
+	Verbose = true
+	Trace = true
+	Debug = true
+	GcFileCount = 10
+
+	inputChan := make(chan *FileJob, 10000)
+	absBaseDir, _ := filepath.Abs("../")
+	absGitDir := filepath.Join(absBaseDir, ".git")
+
+	walkDirectoryParallel(absBaseDir, inputChan)
+	close(inputChan)
+
+	sawGit := false
+	for fileJob := range inputChan {
+		if strings.HasPrefix(fileJob.Location, absGitDir) {
+			sawGit = true
+			break
+		}
+	}
+
+	if sawGit {
+		t.Errorf("Expected .git folder to be ignored")
+	}
+}
+
 func TestWalkDirectory(t *testing.T) {
 	Debug = true
 	Exclude = []string{"test"}