From 7335065d20c6573d0327e3da424113849ab827c9 Mon Sep 17 00:00:00 2001
From: Maxime Coste <frrrwww@gmail.com>
Date: Tue, 1 Dec 2015 13:42:42 +0000
Subject: [PATCH] Update buffer display names after changing working directory

Fixes #501
---
 src/buffer.cc   | 6 ++++++
 src/buffer.hh   | 1 +
 src/commands.cc | 2 ++
 3 files changed, 9 insertions(+)

diff --git a/src/buffer.cc b/src/buffer.cc
index 70183b2b..044a8f1e 100644
--- a/src/buffer.cc
+++ b/src/buffer.cc
@@ -135,6 +135,12 @@ bool Buffer::set_name(String name)
     return false;
 }
 
+void Buffer::update_display_name()
+{
+    if (m_flags & Flags::File)
+        m_display_name = compact_path(m_name);
+}
+
 BufferIterator Buffer::iterator_at(ByteCoord coord) const
 {
     return is_end(coord) ? end() : BufferIterator(*this, clamp(coord));
diff --git a/src/buffer.hh b/src/buffer.hh
index 72c65e5c..b91a7ed1 100644
--- a/src/buffer.hh
+++ b/src/buffer.hh
@@ -90,6 +90,7 @@ public:
     Flags& flags() { return m_flags; }
 
     bool set_name(String name);
+    void update_display_name();
 
     BufferIterator insert(const BufferIterator& pos, StringView content);
     BufferIterator erase(BufferIterator begin, BufferIterator end);
diff --git a/src/commands.cc b/src/commands.cc
index 9117dce3..a7d180dc 100644
--- a/src/commands.cc
+++ b/src/commands.cc
@@ -1696,6 +1696,8 @@ const CommandDesc change_working_directory_cmd = {
     {
         if (chdir(parse_filename(parser[0]).c_str()) != 0)
             throw runtime_error(format("cannot change to directory '{}'", parser[0]));
+        for (auto& buffer : BufferManager::instance())
+            buffer->update_display_name();
     }
 };