From 0cb2c6cf2f5ba8756f648c50a93045815668b355 Mon Sep 17 00:00:00 2001
From: eidheim <eidheim@gmail.com>
Date: Thu, 12 Nov 2015 10:38:38 +0100
Subject: [PATCH] Simplified installation and integration of clang-format.

---
 docs/install.md | 15 ++-------------
 src/config.cc   | 14 +++++++++++++-
 2 files changed, 15 insertions(+), 14 deletions(-)

diff --git a/docs/install.md b/docs/install.md
index 9693755..fe1bdc4 100644
--- a/docs/install.md
+++ b/docs/install.md
@@ -4,6 +4,7 @@
 Install dependencies:
 ```sh
 sudo apt-get install git cmake make g++ libclang-dev pkg-config libboost-system-dev libboost-thread-dev libboost-filesystem-dev libboost-log-dev libgtkmm-3.0-dev libgtksourceviewmm-3.0-dev aspell-en libaspell-dev
+sudo apt-get install clang-format-3.6 || sudo apt-get install clang-format-3.5
 ```
 
 Get juCi++ source, compile and install:
@@ -15,12 +16,6 @@ make
 sudo make install
 ```
 
-To use clang-format for auto-indentation of C++ files (replace \[version\] with an available clang-format version):
-```sh
-sudo apt-get install clang-format-[version]
-sudo ln -s /usr/bin/clang-format-[version] /usr/local/bin/clang-format
-```
-
 ## Ubuntu 14/Linux Mint 17
 Install dependencies:
 ```sh
@@ -28,7 +23,7 @@ sudo add-apt-repository ppa:ubuntu-toolchain-r/test
 sudo apt-get update
 sudo apt-get install g++-4.9
 sudo apt-get remove g++-4.8
-sudo apt-get install git cmake make g++ libclang-3.6-dev pkg-config libboost-system1.55-dev libboost-thread1.55-dev libboost-filesystem1.55-dev libboost-log1.55-dev libgtkmm-3.0-dev libgtksourceviewmm-3.0-dev aspell-en libaspell-dev
+sudo apt-get install git cmake make g++ libclang-3.6-dev clang-format-3.6 pkg-config libboost-system1.55-dev libboost-thread1.55-dev libboost-filesystem1.55-dev libboost-log1.55-dev libgtkmm-3.0-dev libgtksourceviewmm-3.0-dev aspell-en libaspell-dev
 ```
 
 Get juCi++ source, compile and install:
@@ -40,12 +35,6 @@ make
 sudo make install
 ```
 
-To use clang-format for auto-indentation of C++ files (replace \[version\] with an available clang-format version):
-```sh
-sudo apt-get install clang-format-[version]
-sudo ln -s /usr/bin/clang-format-[version] /usr/local/bin/clang-format
-```
-
 ## OS X with Homebrew (http://brew.sh/)
 Install dependencies (installing llvm may take some time):
 ```sh
diff --git a/src/config.cc b/src/config.cc
index 4883f23..094d57e 100644
--- a/src/config.cc
+++ b/src/config.cc
@@ -89,8 +89,20 @@ void Config::retrieve_config() {
   window.default_size = {cfg.get<int>("default_window_size.width"), cfg.get<int>("default_window_size.height")};
   terminal.make_command=cfg.get<std::string>("project.make_command");
   terminal.cmake_command=cfg.get<std::string>("project.cmake_command");
-  terminal.clang_format_command=cfg.get<std::string>("project.clang_format_command", "clang-format");
   terminal.history_size=cfg.get<int>("terminal_history_size");
+  
+  terminal.clang_format_command=cfg.get<std::string>("project.clang_format_command", "clang-format");
+#ifdef __linux
+  if(terminal.clang_format_command=="clang-format" &&
+     !boost::filesystem::exists("/usr/bin/clang-format") && !boost::filesystem::exists("/usr/local/bin/clang-format")) {
+    if(boost::filesystem::exists("/usr/bin/clang-format-3.7"))
+      terminal.clang_format_command="/usr/bin/clang-format-3.7";
+    else if(boost::filesystem::exists("/usr/bin/clang-format-3.6"))
+      terminal.clang_format_command="/usr/bin/clang-format-3.6";
+    else if(boost::filesystem::exists("/usr/bin/clang-format-3.5"))
+      terminal.clang_format_command="/usr/bin/clang-format-3.5";
+  }
+#endif
 }
 
 bool Config::check_config_file(const boost::property_tree::ptree &default_cfg, std::string parent_path) {