[catapult] - Copy Telemetry's gsutilz over to third_party.

third_party/gsutil/third_party/crcmod/docs/source/make_predefined_table.py

Index: third_party/gsutil/third_party/crcmod/docs/source/make_predefined_table.py
diff --git a/third_party/gsutil/third_party/crcmod/docs/source/make_predefined_table.py b/third_party/gsutil/third_party/crcmod/docs/source/make_predefined_table.py
new file mode 100644
index 0000000000000000000000000000000000000000..df1a73fab85f5f066f8b5343bd642440be1dc453
--- /dev/null
+++ b/third_party/gsutil/third_party/crcmod/docs/source/make_predefined_table.py
@@ -0,0 +1,45 @@
+
+from __future__ import print_function
+
+import numbers
+
+import crcmod.predefined
+
+table_data = [
+    [   "Name",            'name',     32,    ],
+    [   "Polynomial",      'poly',     22,    ],
+    [   "Reversed?",       'reverse',  10,    ],
+    [   "Init-value",      'init',     20,    ],
+    [   "XOR-out",         'xor_out',  20,    ],
+    [   "Check",           'check',    20,    ],
+]
+
+ccitt_defns = [
+    'kermit',
+    'crc-ccitt-false',
+    'crc-aug-ccitt',
+]
+
+column_dashes = '  '.join(('=' * table_data_item[2] for table_data_item in table_data))
+print(column_dashes)
+print('  '.join(("%-*s" % (table_data_item[2], table_data_item[0]) for table_data_item in table_data)).strip())
+print(column_dashes)
+
+for defn in crcmod.predefined._crc_definitions:
+    poly_width = crcmod.crcmod._verifyPoly(defn['poly'])
+    hex_width = (poly_width + 3) // 4
+    defn_data_list = []
+    for (header_text, key, width) in table_data:
+        if isinstance(defn[key], bool):
+            item = "%s" % (defn[key],)
+        elif isinstance(defn[key], numbers.Integral):
+            item = "0x%0*X" % (hex_width, defn[key])
+        else:
+            item = "``%s``" % (defn[key])
+            if defn['name'] in ccitt_defns:
+                item = ' '.join([item, '[#ccitt]_'])
+        item = "%-*s" % (width, item)
+        defn_data_list.append(item)
+    print('  '.join(defn_data_list).strip())
+
+print(column_dashes)