scripts: refactor compile_thrift.py

[neverchanje]

Formerly in #167 we removed dsn.cg.sh and dsn.generate_code.php, which was used to generate the thrift files. Now we refactor compile_thrift.py to make it work.

btw, the script is formatted under pep8

$ ./compile_thrift.py 
thrift_exe = /home/mi/git/release/pegasus/rdsn/bin/Linux/thrift
root_dir = /home/mi/git/release/pegasus/rdsn

>>> compiling thrift file dsn.layer2.thrift ...
mkdir /home/mi/git/release/pegasus/rdsn/src/output
/home/mi/git/release/pegasus/rdsn/bin/Linux/thrift -gen cpp:moveable_types -out output dsn.layer2.thrift
mv output/dsn.layer2_types.h /home/mi/git/release/pegasus/rdsn/include/dsn/cpp/serialization_helper
mv output/dsn.layer2_types.cpp /home/mi/git/release/pegasus/rdsn/src/core/core
rm -rf /home/mi/git/release/pegasus/rdsn/src/output

>>> compiling thrift file fd.thrift ...
mkdir /home/mi/git/release/pegasus/rdsn/src/dist/failure_detector/output
/home/mi/git/release/pegasus/rdsn/bin/Linux/thrift -gen cpp:moveable_types -out output fd.thrift
mv output/fd_types.h /home/mi/git/release/pegasus/rdsn/include/dsn/dist/failure_detector
rm -rf /home/mi/git/release/pegasus/rdsn/src/dist/failure_detector/output

>>> compiling thrift file replication.thrift ...
mkdir /home/mi/git/release/pegasus/rdsn/src/dist/replication/output
/home/mi/git/release/pegasus/rdsn/bin/Linux/thrift -gen cpp:moveable_types -out output replication.thrift
mv output/replication_types.h /home/mi/git/release/pegasus/rdsn/include/dsn/dist/replication
mv output/replication_types.cpp /home/mi/git/release/pegasus/rdsn/src/dist/replication/common
rm -rf /home/mi/git/release/pegasus/rdsn/src/dist/replication/output

>>> compiling thrift file simple_kv.thrift ...
mkdir /home/mi/git/release/pegasus/rdsn/src/dist/replication/test/simple_kv/output
/home/mi/git/release/pegasus/rdsn/bin/Linux/thrift -gen cpp:moveable_types -out output simple_kv.thrift
rm -rf /home/mi/git/release/pegasus/rdsn/src/dist/replication/test/simple_kv/output

>>> compiling thrift file nfs.thrift ...
mkdir /home/mi/git/release/pegasus/rdsn/src/dist/nfs/output
/home/mi/git/release/pegasus/rdsn/bin/Linux/thrift -gen cpp:moveable_types -out output nfs.thrift
rm -rf /home/mi/git/release/pegasus/rdsn/src/dist/nfs/output

>>> compiling thrift file simple_kv.thrift ...
mkdir /home/mi/git/release/pegasus/rdsn/src/apps/skv/output
/home/mi/git/release/pegasus/rdsn/bin/Linux/thrift -gen cpp:moveable_types -out output simple_kv.thrift
rm -rf /home/mi/git/release/pegasus/rdsn/src/apps/skv/output

>>> compiling thrift file cli.thrift ...
mkdir /home/mi/git/release/pegasus/rdsn/src/dist/cli/output
/home/mi/git/release/pegasus/rdsn/bin/Linux/thrift -gen cpp:moveable_types -out output cli.thrift
mv output/cli_types.h /home/mi/git/release/pegasus/rdsn/include/dsn/dist/cli
rm -rf /home/mi/git/release/pegasus/rdsn/src/dist/cli/output