==> git log -n1 <==
commit 6ea26e8e6d1a4403943a05f9e0150743448ba248
Author: Ray Donnelly <mingw.android@gmail.com>
Date:   Mon Mar 19 12:46:19 2018 +0000

    Add ADD_*FLAGS to end of commandlines
    
    .. so they take precedence.
==> git describe --tags --dirty <==
v0.90-5-g6ea26e8e6
==> git status <==
HEAD detached from 515f5f5c4
Untracked files:
  (use "git add <file>..." to include in what will be committed)
	R-package/src/amalgamation/
	R-package/src/dmlc-core/
	R-package/src/include/
	R-package/src/rabit/
	R-package/src/src/
	R-package/xgboost_0.82.0.1.zip
	build.sh
	build_env_setup.bat
	conda_build.bat
	install-r-xgboost.sh
	metadata_conda_debug.yaml

nothing added to commit but untracked files present (use "git add" to track)
