From 3e3df1ef547ec330f1d8d582cd8f69e459e5384d Mon Sep 17 00:00:00 2001
From: Gianni Ceccarelli <gianni.ceccarelli@broadbean.com>
Date: Wed, 26 Jun 2019 16:48:12 +0100
Subject: tramp autocomplete for go2 and vagrant (cached)

---
 go2-tramp.el | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 init.el      | 12 ++++++++++++
 2 files changed, 61 insertions(+)
 create mode 100644 go2-tramp.el

diff --git a/go2-tramp.el b/go2-tramp.el
new file mode 100644
index 0000000..e44738f
--- /dev/null
+++ b/go2-tramp.el
@@ -0,0 +1,49 @@
+(require 'tramp)
+(require 'pcache)
+
+(defconst go2-tramp-method "go2")
+
+(defconst go2-tramp-ssh
+  (shell-quote-argument
+   (executable-find "go2")))
+
+(defun go2-tramp--list ()
+  (let* ((go2-cmd "go2 list .")
+         (go2-raw (shell-command-to-string go2-cmd))
+         (go2-lines (split-string go2-raw "\n")))
+    go2-lines))
+
+(defun go2-tramp--list-cached ()
+  (let ((repo (pcache-repository "go2-tramp"))
+        (key 'list))
+    (if (pcache-has repo key)
+        (pcache-get repo key)
+      (let ((value (go2-tramp--list)))
+        (pcache-put repo key value 300)
+        value))))
+
+;;;###autoload
+(defun go2-tramp--completions (&optional file)
+  (--map (list nil it)
+         (go2-tramp--list-cached)))
+
+;;;###autoload
+(defun go2-tramp-add-method ()
+  (add-to-list 'tramp-methods
+               `(,go2-tramp-method
+                 (tramp-login-program     ,go2-tramp-ssh)
+                 (tramp-login-args        (("connect") ("%h")))
+                 (tramp-remote-shell      "/bin/sh")
+                 (tramp-remote-shell-args ("-c")))))
+
+(defconst go2-tramp-completion-function-alist
+  '((go2-tramp--completions  "")))
+
+;;;###autoload
+(eval-after-load 'tramp
+  '(progn
+     (go2-tramp-add-method)
+     (tramp-set-completion-function
+      go2-tramp-method go2-tramp-completion-function-alist)))
+
+(provide 'go2-tramp)
diff --git a/init.el b/init.el
index e8f61bc..a41b2b9 100755
--- a/init.el
+++ b/init.el
@@ -412,3 +412,15 @@
 
 
 (add-to-list 'auto-mode-alist  '("\\.tt$" . web-mode))
+(require 'go2-tramp)
+(require 'vagrant-tramp)
+
+(defun dakkar-cache-vagrant (orig &rest args)
+  (let ((repo (pcache-repository "vagrant-tramp"))
+        (key 'all-boxes))
+    (if (pcache-has repo key)
+        (pcache-get repo key)
+      (let ((value (apply orig args)))
+        (pcache-put repo key value 300)
+        value))))
+(advice-add 'vagrant-tramp--all-boxes :around #'dakkar-cache-vagrant)
-- 
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