From 8a4596bea9d85c86d03efa129c41530faa2a34a7 Mon Sep 17 00:00:00 2001
From: Frank LENORMAND <lenormf@gmail.com>
Date: Wed, 20 Jul 2016 20:45:50 +0300
Subject: Implement a `readonly` mode

This commit introduces the `readonly` variable as well as the `-ro`
command line option which prevent buffers from being overwritten on
disk when the `write` command is used without arguments. Some buffers
can selectively be put in readonly mode by setting the `readonly`
variable on the `buffer` scope, the `global` mode will affect all
buffers (even those who will be open subsequently), using the `window`
scope will have no effect.

Closes #685
---
 src/buffer.hh | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

(limited to 'src/buffer.hh')

diff --git a/src/buffer.hh b/src/buffer.hh
index 2b118c89..1ed88cf7 100644
--- a/src/buffer.hh
+++ b/src/buffer.hh
@@ -101,12 +101,13 @@ class Buffer : public SafeCountable, public OptionManagerWatcher, public Scope
 public:
     enum class Flags
     {
-        None = 0,
-        File   = 1 << 0,
-        New    = 1 << 1,
-        Fifo   = 1 << 2,
-        NoUndo = 1 << 3,
-        Debug  = 1 << 4
+        None     = 0,
+        File     = 1 << 0,
+        New      = 1 << 1,
+        Fifo     = 1 << 2,
+        NoUndo   = 1 << 3,
+        Debug    = 1 << 4,
+        ReadOnly = 1 << 5,
     };
 
     Buffer(String name, Flags flags, StringView data = {},
-- 
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