kaa.py

#!/usr/bin/env python3

# Nicolas Seriot
# 2021-09-22
# https://gist.github.com/nst/6703da0b26f796fd2429310c7dda13cf
# - Upload some local directoy contents to a remote FTP directory.
# - Upload only files modified since last upload.
# - Touch a local file to remember timestamp of last upload.
# - Plays well with Mowgli https://github.com/nst/Mowgli
# - Eg. python3 mowgli.py -m && python3 kaa.py

import ftplib
import os

def upload_files(ftp, local_dir, remote_dir, kaa_ts):

    #print("\nCWD", remote_dir)

    ftp.cwd(remote_dir)

    for name in os.listdir(local_dir):
        
        if name.startswith("."):
            continue
        
        local_path = os.path.join(local_dir, name)

        if os.path.isfile(local_path):

            file_ts = os.path.getmtime(local_path)
            
            if file_ts >= kaa_ts:
                ftp.storbinary('STOR ' + name, open(local_path,'rb'))
                print("STOR", remote_dir, name)
            else:
                pass
                #print("SKIP", name)

        elif os.path.isdir(local_path):
        
            try:
                ftp.mkd(name)
                print("MKDIR" + name)

            # ignore "directory already exists"
            except ftplib.error_perm as e:
                if not e.args[0].startswith('550'): 
                    raise
            
            upload_files(ftp, local_path, name, kaa_ts)           

            ftp.cwd("..")
            #print("CWD ..\n")

def main():

    KAA_FILE = "kaa.txt"

    if os.path.isfile(KAA_FILE):
        kaa_ts = os.path.getmtime(KAA_FILE)
        #print("-- kaa_ts:", kaa_ts)
        
    with ftplib.FTP('ftp.example.com', 'username', 'password') as ftp:
        #ftp.set_debuglevel(2)
    
        #print(ftp.getwelcome())
    
        upload_files(ftp, "dst", "/httpdocs", kaa_ts)

    open(KAA_FILE, 'w').close()

if __name__ == "__main__":
    
    main()