Ejercicio 12c

exercises/ex12/ls

@@ -0,0 +1,34 @@
+#!/usr/bin/env python
+# Exercise 12a
+# ls command
+
+import argparse
+from pathlib import Path
+
+parser = argparse.ArgumentParser()
+parser.add_argument("paths", default=Path().cwd(), nargs="*", type=Path)
+parser.add_argument("-a", "--all", action="store_true")
+args = parser.parse_args()
+result = ""
+
+
+def get_items(path, with_hidden):
+    items = path.glob("*")
+    if not with_hidden:
+        items = list(filter(lambda i: i.name[0] != ".", items))
+    return list(sorted(set(items)))
+
+
+if isinstance(args.paths, list):
+    roots = list(map(lambda p: get_items(p, args.all), args.paths))
+else:
+    roots = [get_items(args.paths, args.all)]
+
+for items in roots:
+    if len(items) > 0:
+        root = items[0].parent
+        items = "\n".join(list(map(lambda i: i.name, items)))
+        result += items if len(roots) == 1 else f"{root}:\n{items}\n\n"
+
+if result != "":
+    print(result.strip())

exercises/ex12/rm

@@ -0,0 +1,26 @@
+#!/usr/bin/env python
+# Exercise 12b
+# rm command
+
+import sys
+import shutil
+import argparse
+from pathlib import Path
+
+parser = argparse.ArgumentParser()
+parser.add_argument("paths", nargs="+", type=Path)
+parser.add_argument("-r", "--recursive", action="store_true")
+args = parser.parse_args()
+error = False
+
+for path in args.paths:
+    if path.is_dir() and args.recursive is False:
+        print(f"rm: no se puede borrar '{path}': Es un directorio")
+        error = True
+    elif path.is_file():
+        path.unlink()
+    else:
+        shutil.rmtree(path)
+
+if error:
+    sys.exit(1)

exercises/ex12/rmdir

@@ -0,0 +1,31 @@
+#!/usr/bin/env python
+# Exercise 12c
+# rmdir command
+
+import sys
+import argparse
+from pathlib import Path
+
+parser = argparse.ArgumentParser()
+parser.add_argument("paths", nargs="+", type=Path)
+parser.add_argument("-p", "--parents", action="store_true")
+args = parser.parse_args()
+error = False
+
+for path in args.paths:
+    if path.is_file():
+        print(f"rmdir: fallo al borrar '{path}': No es un directorio")
+        error = True
+    elif len(list(path.glob("*"))) > 0:
+        print(f"rmdir: fallo al borrar '{path}': El directorio no está vacío")
+        error = True
+    else:
+        if args.parents is True:
+            while len(path.parts) > 0:
+                path.rmdir()
+                path = path.parent
+        else:
+            path.rmdir()
+
+if error:
+    sys.exit(1)