Add small ruby script to create compile_commands with absolute paths

Author: sebastiansturm

sample-project/compile_commands.json

@@ -0,0 +1,12 @@
+require 'json'
+require 'shellwords'
+db = %w[some_file.cpp some_other_file.cpp].map do |sourcefile|
+  fullpath = File.join(Dir.pwd, sourcefile).shellescape
+  { directory: Dir.pwd,
+    file: fullpath,
+    command: "clang++ #{fullpath}"
+  }
+end
+File.open('./compile_commands.json', 'w') do |f|
+  f.write JSON.pretty_generate(db)
+end