micropython: add micropython component

components/language/micropython/extmod/webrepl/webrepl_setup.py

@@ -0,0 +1,108 @@
+import sys
+
+# import uos as os
+import os
+import machine
+
+RC = "./boot.py"
+CONFIG = "./webrepl_cfg.py"
+
+
+def input_choice(prompt, choices):
+    while 1:
+        resp = input(prompt)
+        if resp in choices:
+            return resp
+
+
+def getpass(prompt):
+    return input(prompt)
+
+
+def input_pass():
+    while 1:
+        passwd1 = getpass("New password (4-9 chars): ")
+        if len(passwd1) < 4 or len(passwd1) > 9:
+            print("Invalid password length")
+            continue
+        passwd2 = getpass("Confirm password: ")
+        if passwd1 == passwd2:
+            return passwd1
+        print("Passwords do not match")
+
+
+def exists(fname):
+    try:
+        with open(fname):
+            pass
+        return True
+    except OSError:
+        return False
+
+
+def get_daemon_status():
+    with open(RC) as f:
+        for l in f:
+            if "webrepl" in l:
+                if l.startswith("#"):
+                    return False
+                return True
+        return None
+
+
+def change_daemon(action):
+    LINES = ("import webrepl", "webrepl.start()")
+    with open(RC) as old_f, open(RC + ".tmp", "w") as new_f:
+        found = False
+        for l in old_f:
+            for patt in LINES:
+                if patt in l:
+                    found = True
+                    if action and l.startswith("#"):
+                        l = l[1:]
+                    elif not action and not l.startswith("#"):
+                        l = "#" + l
+            new_f.write(l)
+        if not found:
+            new_f.write("import webrepl\nwebrepl.start()\n")
+    # FatFs rename() is not POSIX compliant, will raise OSError if
+    # dest file exists.
+    os.remove(RC)
+    os.rename(RC + ".tmp", RC)
+
+
+def main():
+    status = get_daemon_status()
+
+    print("WebREPL daemon auto-start status:", "enabled" if status else "disabled")
+    print("\nWould you like to (E)nable or (D)isable it running on boot?")
+    print("(Empty line to quit)")
+    resp = input("> ").upper()
+
+    if resp == "E":
+        if exists(CONFIG):
+            resp2 = input_choice(
+                "Would you like to change WebREPL password? (y/n) ", ("y", "n", "")
+            )
+        else:
+            print("To enable WebREPL, you must set password for it")
+            resp2 = "y"
+
+        if resp2 == "y":
+            passwd = input_pass()
+            with open(CONFIG, "w") as f:
+                f.write("PASS = %r\n" % passwd)
+
+    if resp not in ("D", "E") or (resp == "D" and not status) or (resp == "E" and status):
+        print("No further action required")
+        sys.exit()
+
+    change_daemon(resp == "E")
+
+    print("Changes will be activated after reboot")
+    resp = input_choice("Would you like to reboot now? (y/n) ", ("y", "n", ""))
+    if resp == "y":
+        machine.reset()
+
+
+main()