add file lock to adb_run

docker/Dockerfile

@@ -109,12 +109,13 @@ RUN apt-get install -y --no-install-recommends \
 
 # Install tools
 RUN pip install -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com setuptools
-RUN pip install -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com tensorflow==1.4.0 \
+RUN pip install -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com tensorflow==1.6.0 \
     scipy \
     jinja2 \
     pyyaml \
-    sh \
-    pycodestyle
+    sh==1.12.14 \
+    pycodestyle==2.4.0 \
+    filelock
 
 # Download tensorflow tools
 RUN wget http://cnbj1-inner-fds.api.xiaomi.net/mace/tool/transform_graph && \

tools/sh_commands.py

-import sh
+import falcon_cli
+import filelock
 import re
+import sh
 import time
-import falcon_cli
 
 
 ################################
@@ -85,12 +86,17 @@ def adb_run(serialno,
     print(
         "====================================================================="
     )
-    print("Run on device: %s, %s, %s" % (serialno, props["ro.board.platform"],
+    lock_path = "/tmp/device-lock-%s" % serialno
+    print("Try to lock ", lock_path)
+    with filelock.FileLock(lock_path, timeout=3600):
+        print("Run on device: %s, %s, %s" % (serialno,
+                                             props["ro.board.platform"],
                                              props["ro.product.model"]))
         sh.adb("-s", serialno, "shell", "rm -rf %s" % device_bin_path)
         sh.adb("-s", serialno, "shell", "mkdir -p %s" % device_bin_path)
         print("Push %s to %s" % (host_bin_full_path, device_bin_full_path))
-    sh.adb("-s", serialno, "push", host_bin_full_path, device_bin_full_path)
+        sh.adb("-s", serialno, "push", host_bin_full_path,
+               device_bin_full_path)
         print("Run %s" % device_bin_full_path)
         stdout_buff = []
         process_output = make_output_processor(stdout_buff)