Add download script for windows

download.bat

@@ -0,0 +1,73 @@
+:: Copyright (c) Meta Platforms, Inc. and affiliates.
+:: This software may be used and distributed according to the terms of the Llama 2 Community License Agreement.
+
+:: Prerequisites:
+:: 0. Windows machine
+:: 1. wget installed
+:: 2. You've broken up your presigned url into its URL variables (separated by "?" and "&")
+
+:: RUN AT YOUR OWN RISK: I removed the md5sum dependency because I couldn't get the windows version to work right with this script.
+
+:: Example:
+:: download.bat YOUR_POLICY YOUR_SIGNATURE YOUR_KPID 7B .
+
+:: Model size options = 7B,13B,70B,7B-chat,13B-chat,70B-chat
+:: Unlike the bash script, this only takes one model at a time
+
+:: First argument = Policy field from presigned url
+:: Second argument = Signature field from presigned url
+:: Third argument = Key-Pair-Id field from presigned url
+:: Fourth argument = model size (only one at a time)
+:: Fifth argument = target folder
+
+:: WARNING: This will NOT work in PowerShell
+:: WARNING: You must run cmd.exe as Administrator. I have a cmd shortcut on my desktop that I right click then click "Run as Administrator"
+
+@ECHO Off
+
+SET POLICY=%1
+SET SIGNATURE=%2
+SET KEY_PAIR_ID=%3
+SET MODEL_SIZE=%4
+SET TARGET_FOLDER=%5
+
+IF %MODEL_SIZE%=="" SET MODEL_SIZE=7B
+IF %TARGET_FOLDER%=="" SET TARGET_FOLDER=.
+
+ECHO "Downloading LICENSE and Acceptable Usage Policy"
+wget "https://download.llamameta.net/LICENSE?Policy=%POLICY%&Signature=%SIGNATURE%&Key-Pair-Id=%KEY_PAIR_ID%" -O "%TARGET_FOLDER%/LICENSE"
+wget "https://download.llamameta.net/USE_POLICY.md?Policy=%POLICY%&Signature=%SIGNATURE%&Key-Pair-Id=%KEY_PAIR_ID%" -O "%TARGET_FOLDER%/USE_POLICY.md"
+
+ECHO "Downloading tokenizer"
+wget "https://download.llamameta.net/tokenizer.model?Policy=%POLICY%&Signature=%SIGNATURE%&Key-Pair-Id=%KEY_PAIR_ID%" -O "%TARGET_FOLDER%/tokenizer.model"
+wget "https://download.llamameta.net/tokenizer_checklist.chk?Policy=%POLICY%&Signature=%SIGNATURE%&Key-Pair-Id=%KEY_PAIR_ID%" -O "%TARGET_FOLDER%/tokenizer_checklist.chk"
+
+IF %MODEL_SIZE%==7B SET /A SHARD=0
+IF %MODEL_SIZE%==7B SET MODEL_PATH=llama-2-7b
+
+if %MODEL_SIZE%==7B-chat SET /A SHARD=0
+if %MODEL_SIZE%==7B-chat SET MODEL_PATH=llama-2-7b-chat
+
+if %MODEL_SIZE%==13B SET /A SHARD=1
+if %MODEL_SIZE%==13B SET MODEL_PATH=llama-2-13b
+
+if %MODEL_SIZE%==13B-chat SET /A SHARD=1
+if %MODEL_SIZE%==13B-chat SET MODEL_PATH=llama-2-13b-chat
+
+if %MODEL_SIZE%==70B SET /A SHARD=7
+if %MODEL_SIZE%==70B SET MODEL_PATH=llama-2-70b
+
+if %MODEL_SIZE%==70B-chat SET /A SHARD=7
+if %MODEL_SIZE%==70B-chat SET MODEL_PATH=llama-2-70b-chat
+
+ECHO "Downloading model to %MODEL_PATH% with shard %SHARD% because MODEL_SIZE is %MODEL_SIZE%"
+MKDIR "%TARGET_FOLDER%/%MODEL_PATH%"
+
+FOR %%s IN (0, 1, %SHARD%) DO (
+    wget "https://download.llamameta.net/%MODEL_PATH%/consolidated.%s%.pth?Policy=%POLICY%&Signature=%SIGNATURE%&Key-Pair-Id=%KEY_PAIR_ID%"  -O "%TARGET_FOLDER%/%MODEL_PATH%/consolidated.%s%.pth"
+)
+
+wget "https://download.llamameta.net/%MODEL_PATH%/params.json?Policy=%POLICY%&Signature=%SIGNATURE%&Key-Pair-Id=%KEY_PAIR_ID%"  -O "%TARGET_FOLDER%/%MODEL_PATH%/params.json"
+wget "https://download.llamameta.net/%MODEL_PATH%/checklist.chk?Policy=%POLICY%&Signature=%SIGNATURE%&Key-Pair-Id=%KEY_PAIR_ID%"  -O "%TARGET_FOLDER%/%MODEL_PATH%/checklist.chk"
+
+ECHO DONE