From 9ab47bef1d29dc765e577ea61ed0752e1e5262e7 Mon Sep 17 00:00:00 2001
From: Jason Dufair <jase@dufair.org>
Date: Wed, 15 Feb 2012 22:49:49 -0500
Subject: [PATCH] cygwin support

---
 lein-swank/src/leiningen/jack_in.clj | 12 +++++++-----
 src/swank/util/sys.clj               | 27 +++++++++++++++++++++++++--
 2 files changed, 32 insertions(+), 7 deletions(-)

diff --git a/lein-swank/src/leiningen/jack_in.clj b/lein-swank/src/leiningen/jack_in.clj
index df366b1..5d37ffd 100644
--- a/lein-swank/src/leiningen/jack_in.clj
+++ b/lein-swank/src/leiningen/jack_in.clj
@@ -1,7 +1,8 @@
 (ns leiningen.jack-in
   (:require [clojure.java.io :as io]
             [clojure.string :as string]
-            [leiningen.swank :as swank])
+            [leiningen.swank :as swank]
+            [swank.util.sys :as util])
   (:import (java.security MessageDigest)))
 
 (def ^:private payloads-file-name "swank_elisp_payloads.clj")
@@ -23,10 +24,11 @@
   (let [feature (second (re-find #".*/(.*?).el$" resource))
         checksum (subs (hex-digest resource) 0 8)
         filename (format "%s-%s" feature checksum)
-        basename (-> (System/getProperty "user.home")
-                     (io/file ".emacs.d" "swank" filename)
-                     (.getAbsolutePath)
-                     (.replaceAll "\\\\" "/"))
+        basename (util/universal-path
+                  (-> (util/preferred-user-home-path)
+                      (io/file ".emacs.d" "swank" filename)
+                      (.getAbsolutePath)
+                      (.replaceAll "\\\\" "/")))
         elisp (str basename ".el")
         bytecode (str basename ".elc")
         elisp-file (io/file elisp)]
diff --git a/src/swank/util/sys.clj b/src/swank/util/sys.clj
index f76c319..ea455c8 100644
--- a/src/swank/util/sys.clj
+++ b/src/swank/util/sys.clj
@@ -1,4 +1,5 @@
-(ns swank.util.sys)
+(ns swank.util.sys
+  (:import (java.io BufferedReader InputStreamReader)))
 
 (defn get-pid
   "Returns the PID of the JVM. This is largely a hack and may or may
@@ -9,5 +10,27 @@
          (System/getProperty "pid")))
   {:tag String})
 
+(defn cmd [p]
+  (.. Runtime getRuntime (exec (str p))))
+
+(defn cmdout [o]
+  (let [r (BufferedReader.
+           (InputStreamReader. (.getInputStream o)))]
+    (line-seq r)))
+
+;; would prefer (= (System/getenv "OSTYPE") "cygwin")
+;; but clojure's java not in cygwin env
+(defn is-cygwin? []
+  (not= nil (try (cmdout (cmd "cygpath c:\\")) (catch Exception e))))
+
+(defn universal-path [path]
+  (if (is-cygwin?)
+    (first (cmdout (cmd (str "cygpath " path))))
+    path))
+
+(defn preferred-user-home-path []
+  (or (System/getenv "HOME")
+      (System/getProperty "user.home")))
+
 (defn user-home-path []
-  (System/getProperty "user.home"))
+   (universal-path (preferred-user-home-path)))