From 28e35c0b0b996e17bd94a5b9e78fda90086ba85e Mon Sep 17 00:00:00 2001
From: Andinus <andinus@nand.sh>
Date: Tue, 24 Mar 2020 20:24:47 +0530
Subject: Add cache package

---
 cache/getdir_darwin.go | 23 +++++++++++++++++++++++
 cache/getdir_unix.go   | 29 +++++++++++++++++++++++++++++
 2 files changed, 52 insertions(+)
 create mode 100644 cache/getdir_darwin.go
 create mode 100644 cache/getdir_unix.go

diff --git a/cache/getdir_darwin.go b/cache/getdir_darwin.go
new file mode 100644
index 0000000..fc47e7e
--- /dev/null
+++ b/cache/getdir_darwin.go
@@ -0,0 +1,23 @@
+// +build darwin
+
+package cache
+
+import (
+	"fmt"
+	"os"
+)
+
+// GetDir returns cetus cache directory. Default cache directory on
+// macOS is $HOME/Library/Caches.
+func GetDir() string {
+	cacheDir = fmt.Sprintf("%s/%s/%s",
+		os.Getenv("HOME"),
+		"Library",
+		"Caches")
+
+	// Cetus cache directory is cacheDir/cetus
+	cetusCacheDir = fmt.Sprintf("%s/%s", cacheDir,
+		"cetus")
+
+	return cetusCacheDir
+}
diff --git a/cache/getdir_unix.go b/cache/getdir_unix.go
new file mode 100644
index 0000000..b1358d7
--- /dev/null
+++ b/cache/getdir_unix.go
@@ -0,0 +1,29 @@
+// +build linux netbsd openbsd freebsd dragonfly
+
+package cache
+
+import (
+	"fmt"
+	"os"
+)
+
+// GetDir returns cetus cache directory. Check if the user has set
+// CETUS_CACHE_DIR, if not then check if XDG_CACHE_HOME is set & if
+// that is not set then assume it to be the default value which is
+// $HOME/.cache according to XDG Base Directory Specification.
+func GetDir() string {
+	cacheDir := os.Getenv("CETUS_CACHE_DIR")
+	if len(cacheDir) == 0 {
+		cacheDir = os.Getenv("XDG_CACHE_HOME")
+	}
+	if len(cacheDir) == 0 {
+		cacheDir = fmt.Sprintf("%s/%s", os.Getenv("HOME"),
+			".cache")
+	}
+
+	// Cetus cache directory is cacheDir/cetus.
+	cetusCacheDir = fmt.Sprintf("%s/%s", cacheDir,
+		"cetus")
+
+	return cetusCacheDir
+}
-- 
cgit 1.4.1-2-gfad0