Split library from main

.gitignore

 myfilesystem.fs
+__pycache__
 

main.py

+from myfs import format, save, load, copy, remove
+import sys
+
+if len(sys.argv) < 2:
+    # Missing filesystem name. Assuming default myfilesystem.fs
+    backingfile = 'myfilesystem.fs'
+else:
+    backingfile = sys.argv[1]
+    # one could actually use a usb stick raw at "/dev/something"
+    # Data loss, and it'll need reformatting afterwards!
+
+
+# create backingfile if needed
+try: 
+    with open(backingfile, 'x'): pass 
+except FileExistsError: pass
+
+##########################################
+##########################################
+
+alice_sample = """Alice was beginning to get very tired of sitting by her sister on the
+bank, and of having nothing to do: once or twice she had peeped into the
+book her sister was reading, but it had no pictures or conversations in
+it, 'and what is the use of a book,' thought Alice 'without pictures or
+conversations?'
+"""
+
+
+print()
+print("*" * 60)
+print(f"* Use xxd {backingfile} to inspect contents")
+print("*" * 60)
+print()
+
+with open(backingfile, 'r+b') as f:
+    format(f)
+    save(f, "hello.txt", "Hello")
+    save(f, "alice.txt", alice_sample)
+    alice_back = load(f, "alice.txt")
+
+    print(alice_back)
+
+    copy(f, "hello.txt", "clone.txt")
+    save(f, "bye.txt", "Bye Bye")
+    copy(f, "hello.txt", "clone2.txt")
+    remove(f, "bye.txt")
\ No newline at end of file

myfs.py

 import sys
 
-if len(sys.argv) < 2:
-    # Missing filesystem name. Assuming default myfilesystem.fs
-    backingfile = 'myfilesystem.fs'
-else:
-    backingfile = sys.argv[1]
-    # one could actually use a usb stick raw at "/dev/something"
-    # Data loss, and it'll need reformatting afterwards!
-
-
-# create backingfile if needed
-try: 
-    with open(backingfile, 'x'): pass 
-except FileExistsError: pass
-
-##########################################
-##########################################
-
 # file system parameters
 TOTAL_SIZE = 0x800 # 2kB
 
@@ -115,34 +98,6 @@ def remove(f, filename):
 ##########################
 ##########################
 
-alice_sample = """Alice was beginning to get very tired of sitting by her sister on the
-bank, and of having nothing to do: once or twice she had peeped into the
-book her sister was reading, but it had no pictures or conversations in
-it, 'and what is the use of a book,' thought Alice 'without pictures or
-conversations?'
-"""
-
-
-if __name__ == "__main__":
-    print()
-    print("*" * 60)
-    print(f"* Use xxd {backingfile} to inspect contents")
-    print("*" * 60)
-    print()
-
-    with open(backingfile, 'r+b') as f:
-        format(f)
-        save(f, "hello.txt", "Hello")
-        save(f, "alice.txt", alice_sample)
-        alice_back = load(f, "alice.txt")
-
-        print(alice_back)
-
-        copy(f, "hello.txt", "clone.txt")
-        save(f, "bye.txt", "Bye Bye")
-        copy(f, "hello.txt", "clone2.txt")
-        remove(f, "bye.txt")
-
 
 # ls(f)