From f9e1e8cbdc88a4be614c34a9a4b3ae097c890ad3 Mon Sep 17 00:00:00 2001
From: Fangrui Song <i@maskray.me>
Date: Sun, 13 May 2018 19:09:26 -0700
Subject: [PATCH] Congratulations to Tea Deliverers

---
 CMakeLists.txt        |  5 +----
 cmake/FindClang.cmake | 13 +++++++++----
 src/filesystem.cc     | 37 +++++++++++--------------------------
 3 files changed, 21 insertions(+), 34 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 010258ad..05aa3e0b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,6 +12,7 @@ option(SYSTEM_CLANG "Use system installation of Clang instead of \
        downloading Clang" OFF)
 option(ASAN "Compile with address sanitizers" OFF)
 option(CLANG_USE_BUNDLED_LIBC++ "Let Clang use bundled libc++" OFF)
+option(USE_SHARED_LLVM "Link against libLLVM.so instead separate LLVM{Option,Support,...}" OFF)
 
 # Sources for the executable are specified at end of CMakeLists.txt
 add_executable(ccls "")
@@ -105,11 +106,7 @@ endif()
 
 # See cmake/FindClang.cmake
 find_package(Clang ${CLANG_VERSION} REQUIRED)
-find_package(Curses REQUIRED)
 target_link_libraries(ccls PRIVATE Clang::Clang)
-if(NOT ${CMAKE_SYSTEM_NAME} STREQUAL Windows)
-  target_link_libraries(ccls PRIVATE Clang::Clang ${CURSES_LIBRARIES})
-endif()
 
 # Enable threading support
 set(THREADS_PREFER_PTHREAD_FLAG ON)
diff --git a/cmake/FindClang.cmake b/cmake/FindClang.cmake
index 9524ca23..cc808ccc 100644
--- a/cmake/FindClang.cmake
+++ b/cmake/FindClang.cmake
@@ -71,9 +71,13 @@ set(_Clang_REQUIRED_VARS Clang_LIBRARY Clang_INCLUDE_DIR Clang_EXECUTABLE
 _Clang_find_library(Clang_LIBRARY clang)
 _Clang_find_add_library(clangDriver)
 _Clang_find_add_library(clangBasic)
-_Clang_find_add_library(LLVMOption)
-_Clang_find_add_library(LLVMSupport)
-_Clang_find_add_library(LLVMDemangle)
+if(USE_SHARED_LLVM)
+  _Clang_find_add_library(LLVM)
+else()
+  _Clang_find_add_library(LLVMOption)
+  _Clang_find_add_library(LLVMSupport)
+  _Clang_find_add_library(LLVMDemangle)
+endif()
 _Clang_find_path(Clang_INCLUDE_DIR clang-c/Index.h)
 _Clang_find_path(Clang_BUILD_INCLUDE_DIR clang/Driver/Options.inc)
 _Clang_find_path(LLVM_INCLUDE_DIR llvm/PassInfo.h)
@@ -113,5 +117,6 @@ if(Clang_FOUND AND NOT TARGET Clang::Clang)
     IMPORTED_LOCATION ${Clang_LIBRARY}
     INTERFACE_INCLUDE_DIRECTORIES "${Clang_INCLUDE_DIR};${Clang_BUILD_INCLUDE_DIR};${LLVM_INCLUDE_DIR};${LLVM_BUILD_INCLUDE_DIR}")
 
-  set_property(TARGET Clang::Clang PROPERTY INTERFACE_LINK_LIBRARIES ${_Clang_LIBRARIES})
+  find_package(Curses REQUIRED)
+  set_property(TARGET Clang::Clang PROPERTY IMPORTED_LINK_INTERFACE_LIBRARIES "${_Clang_LIBRARIES};${CURSES_LIBRARIES}")
 endif()
diff --git a/src/filesystem.cc b/src/filesystem.cc
index f9d31004..1b343b14 100644
--- a/src/filesystem.cc
+++ b/src/filesystem.cc
@@ -5,23 +5,20 @@ using namespace llvm;
 
 #include <utility>
 
-static void GetFilesInFolderHelper(
-    std::string folder,
-    bool recursive,
-    std::string output_prefix,
-    const std::function<void(const std::string&)>& handler) {
+void GetFilesInFolder(std::string folder,
+                      bool recursive,
+                      bool dir_prefix,
+                      const std::function<void(const std::string&)>& handler) {
+  EnsureEndsInSlash(folder);
   std::error_code ec;
   if (recursive)
     for (sys::fs::recursive_directory_iterator I(folder, ec), E; I != E && !ec;
          I.increment(ec)) {
       std::string path = I->path(), filename = sys::path::filename(path);
       if (filename[0] != '.' || filename == ".ccls") {
-        SmallString<256> Path;
-        if (output_prefix.size()) {
-          sys::path::append(Path, output_prefix, path);
-          handler(Path.str());
-        } else
-          handler(path);
+        if (!dir_prefix)
+          path = path.substr(folder.size());
+        handler(path);
       }
     }
   else
@@ -29,21 +26,9 @@ static void GetFilesInFolderHelper(
          I.increment(ec)) {
       std::string path = I->path(), filename = sys::path::filename(path);
       if (filename[0] != '.' || filename == ".ccls") {
-        SmallString<256> Path;
-        if (output_prefix.size()) {
-          sys::path::append(Path, output_prefix, path);
-          handler(Path.str());
-        } else
-          handler(path);
+        if (!dir_prefix)
+          path = path.substr(folder.size());
+        handler(path);
       }
     }
 }
-
-void GetFilesInFolder(std::string folder,
-                      bool recursive,
-                      bool add_folder_to_path,
-                      const std::function<void(const std::string&)>& handler) {
-  EnsureEndsInSlash(folder);
-  GetFilesInFolderHelper(folder, recursive, add_folder_to_path ? folder : "",
-                         handler);
-}