Uses .tar instead of .tar.gz now.

compress.py

@@ -8,7 +8,7 @@ IMAGE_DIR = "images"
 COMPRESSED_DIR = "compressed"
 
 def compress_chunk(chunk, chunk_index):
-    with tarfile.open(os.path.join(COMPRESSED_DIR, f"chunk_{chunk_index}.tar.gz"), "w:gz") as tar:
+    with tarfile.open(os.path.join(COMPRESSED_DIR, f"chunk_{chunk_index}.tar"), "w") as tar:
         for image_path in chunk:
             tags_path = os.path.splitext(image_path)[0] + ".txt"
             if not os.path.isfile(tags_path):
@@ -17,7 +17,7 @@ def compress_chunk(chunk, chunk_index):
             tar.add(tags_path, arcname=os.path.basename(tags_path))
 
 def parse_args():
-    parser = argparse.ArgumentParser(description="Compress images and group them into chunks.")
+    parser = argparse.ArgumentParser(description="Group images into uncompressed tar files.")
     parser.add_argument("num_images_per_chunk", nargs=argparse.REMAINDER, help="Number of images per chunk, default to 1024")
     args = parser.parse_args()
     if not args.num_images_per_chunk:

compressed/{chunk_0.tar.gz → chunk_0.tar}

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:12f8aedef957fd0540ed276d1b795fdac7f4ff4b340cd4ba115513c73fe5e54d
-size 6504537662
+oid sha256:1dc29f8a67906beb16649582e80f5bda288797a910f917a83cee491c7bf85786
+size 6587371520

compressed/{chunk_1.tar.gz → chunk_1.tar}

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:1281ba239492db6fc46d0c1c0414d6cbb64177e41e85d332aa08a4cbdfe3b566
-size 6187281166
+oid sha256:14daecd387628bbab48834f055faeb75c272ea46f658fa3036a21759b3febb34
+size 6350704640

compressed/{chunk_2.tar.gz → chunk_2.tar}

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:4480c0949a88655221b81b733259b8ad8fbecd0d4697d3fb002b3f8bdd7a1d6c
-size 6582511633
+oid sha256:fcd9cc36741c4088bc31ec898125fc09ed363ddff9dc7f8d31853fc4e75a2cd8
+size 6641674240

compressed/{chunk_3.tar.gz → chunk_3.tar}

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:4ffe6e6cd465eda38596a329a964d90133f6e266a267ccc94ec328ddd6db246f
-size 7214485145
+oid sha256:af4d8223ef9a2d4238c2fdda462c9776fb911d8642fef0185432d8ecddffd23f
+size 7292692480

compressed/chunk_4.tar

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:90d4704963e77d5ea449e6758ccb5785062c640ad56ccbde0b2b6592ada0e0ba
+size 6506782720

compressed/chunk_4.tar.gz

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:5f04415b1e4a8cacded40b17920330c4d0757b798129860fb0f8047a4030ca09
-size 6457710727

compressed/chunk_5.tar

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f56f724c24dffea6cba505db03346356a25ae3b3221be414aa18043a458c14c6
+size 7095900160

compressed/chunk_5.tar.gz

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:274b3422c434169f30a07f1424b8083895849546ed82fb7108ff8de6d7269b0b
-size 7044618031

compressed/chunk_6.tar

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6bd416ec64f767647b859cc9f6855a07caf7f18e4479c14150e57f5556db70b7
+size 6931691520

compressed/chunk_6.tar.gz

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:81e37b08ccfde371666a2ee8ad5cabd75e32f03a446006227d1417c5fabdf3bb
-size 6876412339

compressed/chunk_7.tar

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:38233aaa3a05a577728a3957492512680fbdb3525e4a9fa13df7d4d9cb177cee
+size 7031726080

compressed/chunk_7.tar.gz

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:e204f4cd38b02fde1c0901394fb07860da78cb8ffada00827b86cd980a22489b
-size 6981906967

compressed/chunk_8.tar

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d23a580dd2bc23b87e13798841a39615411bef541e11ace1bb2a2822195256ef
+size 3574056960

compressed/chunk_8.tar.gz

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:422ea225d1490139d04185edbd906307d56a3b83bc851b4d13cd2f066d160898
-size 3530250109

compressed/chunk_9.tar

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:221ba7dd42b5ba778ab05abdc15d81c04733bed842404c9fb27b380d1fdf0799
+size 3041423360

compressed/chunk_9.tar.gz

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:520e1c25dba7198c8cb3dbd8694b18b309879ec100036a0338cdbb4ff777fd8b
-size 3009101474

decompress.py

@@ -8,13 +8,13 @@ IMAGE_DIR = "images"
 COMPRESSED_DIR = "compressed"
 
 def decompress_chunk(chunk_file, output_dir):
-    with tarfile.open(chunk_file, "r:gz") as tar:
+    with tarfile.open(chunk_file, "r") as tar:
         tar.extractall(path=output_dir)
 
 def parse_args():
-    parser = argparse.ArgumentParser(description="Decompress chunked archives.")
-    parser.add_argument("-i", "--input-dir", default=COMPRESSED_DIR, help="Input directory containing compressed chunks")
-    parser.add_argument("-o", "--output-dir", default=IMAGE_DIR, help="Output directory for decompressed files")
+    parser = argparse.ArgumentParser(description="Extract files from chunked tar archives.")
+    parser.add_argument("-i", "--input-dir", default=COMPRESSED_DIR, help="Input directory containing tar chunks")
+    parser.add_argument("-o", "--output-dir", default=IMAGE_DIR, help="Output directory for extracted files")
     args = parser.parse_args()
     return args
 
@@ -23,7 +23,7 @@ def main():
     if not os.path.exists(args.input_dir):
         print(f"Input directory \"{args.input_dir}\" does not exist.")
         sys.exit(1)
-    chunk_files = [os.path.join(args.input_dir, f) for f in os.listdir(args.input_dir) if f.endswith(".tar.gz")]
+    chunk_files = [os.path.join(args.input_dir, f) for f in os.listdir(args.input_dir) if f.endswith(".tar")]
     os.makedirs(args.output_dir, exist_ok=True)
     with concurrent.futures.ThreadPoolExecutor(max_workers=os.cpu_count()) as executor:
         futures = []