Initial fork commit

scripts/geodata/file_utils.py

@@ -0,0 +1,38 @@
+import os
+import subprocess
+import six
+
+
+def download_file(url, dest, retries=3, retry_delay=5):
+    ensure_dir(os.path.dirname(dest))
+    return subprocess.check_output(['curl', url, '-L', '-w', '%{http_code}',
+                                    '--retry', six.text_type(retries),
+                                    '--retry-delay', six.text_type(retry_delay),
+                                    '-o', dest, '--silent']) == '200'
+
+
+def unzip_file(filename, dest):
+    ensure_dir(dest)
+    return subprocess.check_call(['unzip', '-o', filename, '-d', dest]) == 0
+
+
+def remove_file(filename):
+    os.unlink(filename)
+
+
+def ensure_dir(d):
+    if not os.path.exists(d):
+        os.makedirs(d)
+
+
+class cd:
+    """Context manager for changing the current working directory"""
+    def __init__(self, path):
+        self.path = path
+
+    def __enter__(self):
+        self.saved_path = os.getcwd()
+        os.chdir(self.path)
+
+    def __exit__(self, etype, value, traceback):
+        os.chdir(self.saved_path)