From 0f46fdce42923a79517b3fd50ad8ce97d9c104b2 Mon Sep 17 00:00:00 2001
From: Dan Turner <dan.p.turner@gmail.com>
Date: Thu, 14 Jan 2016 11:42:55 +1100
Subject: [PATCH 1/2] Change deps-cache path to inside home instead of a temp
 folder

Closes #33
---
 xgo.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xgo.go b/xgo.go
index 2c2dd1b..0a2148e 100644
--- a/xgo.go
+++ b/xgo.go
@@ -22,7 +22,7 @@ import (
 )
 
 // Path where to cache external dependencies
-var depsCache = filepath.Join(os.TempDir(), "xgo-cache")
+var depsCache = filepath.Join(os.Getenv("HOME"), ".xgo-cache")
 
 // Cross compilation docker containers
 var dockerBase = "karalabe/xgo-base"

From 75c37e116e9ca9c0212aed8cd36461eb2b4f2d24 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= <peterke@gmail.com>
Date: Thu, 14 Jan 2016 12:53:23 +0200
Subject: [PATCH 2/2] Add a few fallback cache paths, fix folder permissions

---
 xgo.go | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/xgo.go b/xgo.go
index 0a2148e..b2bae9c 100644
--- a/xgo.go
+++ b/xgo.go
@@ -16,13 +16,27 @@ import (
 	"net/http"
 	"os"
 	"os/exec"
+	"os/user"
 	"path/filepath"
 	"strconv"
 	"strings"
 )
 
 // Path where to cache external dependencies
-var depsCache = filepath.Join(os.Getenv("HOME"), ".xgo-cache")
+var depsCache string
+
+func init() {
+	// Initialize the external dependency cache path to a few possible locations
+	if home := os.Getenv("HOME"); home != "" {
+		depsCache = filepath.Join(home, ".xgo-cache")
+		return
+	}
+	if user, err := user.Current(); user != nil && err == nil && user.HomeDir != "" {
+		depsCache = filepath.Join(user.HomeDir, ".xgo-cache")
+		return
+	}
+	depsCache = filepath.Join(os.TempDir(), "xgo-cache")
+}
 
 // Cross compilation docker containers
 var dockerBase = "karalabe/xgo-base"
@@ -115,7 +129,7 @@ func main() {
 	}
 	// Cache all external dependencies to prevent always hitting the internet
 	if *crossDeps != "" {
-		if err := os.MkdirAll(depsCache, 751); err != nil {
+		if err := os.MkdirAll(depsCache, 0751); err != nil {
 			log.Fatalf("Failed to create dependency cache: %v.", err)
 		}
 		// Download all missing dependencies