Do SHA checksums generation and verification

checksums.sha

@@ -0,0 +1,7 @@
+dddb8cc442352dd15d1c30d4e19d3fa3205f513674a30cbbd3127140ce3991df  splits/train.txt
+fe46a10513ec548d3c4f75fbc30acc3ff16dfca6bbed391ad06d78d5b582e434  splits/val.txt
+541f4b1f2f9f87d1984f6a833c70e93d1a2b0a486b7b774577360086597fc5b9  splits/val-w-false.txt
+c3c7a487c07443b302d1699f06a4d01db9e87a50544020024db9fa1b822ae397  train-images.tar.gz
+91252810f0876872dfe0ef0ae3220d01d1ca6136a04e02f816010232b249c383  train-metadata.tar.gz
+6c8aaad054d60779a2aaf1faeedde39eae33d86598f0a5db3ac8eae416f7881b  val-images.tar.gz
+48d27c139fe68a5fb90de236f863b6da01e11eb0f8f4902e1ffd728ea3767be4  val-metadata.tar.gz

download.sh

@@ -13,11 +13,11 @@ fi
 target_dir=$1
 mkdir -p "${target_dir}" && cd "${target_dir}"
 
-repository_url="https://huggingface.co/datasets/jbourcier/fmow-rgb-baseline"
+base_url="https://hf.co/datasets/jbourcier/fmow-rgb-baseline/resolve/main"
 
 echo "Downloading archives..."
 for archive in 'train-images.tar.gz' 'train-metadata.tar.gz' 'val-images.tar.gz' 'val-metadata.tar.gz'; do
-    wget "${repository_url}/resolve/main/${archive}"
+    wget "${base_url}/${archive}"
 done
 
 echo "Extracting archives..."
@@ -31,7 +31,8 @@ done
 
 echo "Downloading split files..."
 for split in 'train' 'val'; do
-    wget "${repository_url}/resolve/main/splits/${split}.txt"
+    wget "${base_url}/splits/${split}.txt"
 done
 
-cd - &> /dev/null
+echo "Verifying checksums..."
+./verify-checksums.sh

generate-checksums.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# Pull files
+git lfs pull --include "*.tar.gz" --include "*.txt"
+
+# Output file for checksums
+CHECKSUMS_FILE="checksums.sha"
+
+# Generate SHA-256 checksums for all dataset files
+sha256sum splits/*.txt > "$CHECKSUMS_FILE"
+sha256sum *.tar.gz >> "$CHECKSUMS_FILE"
+
+echo "Checksums generated and saved to $CHECKSUMS_FILE"

verify-checksums.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+# Checksum file
+CHECKSUMS_FILE="checksums.sha"
+
+# Verify checksums
+sha256sum --check --strict "$CHECKSUMS_FILE"
+