change hashing method, update progress by size where it makes sense.

import_media.py

@@ -20,6 +20,7 @@ from pprint import pprint
 import argparse
 import shutil
 import hashlib
+import xxhash
 from datetime import datetime
 from tqdm import tqdm
 import yaml
@@ -36,6 +37,7 @@ try:
 except FileNotFoundError:
     print("Configuration file not found: ", CONFIG_FILE)
     print("Copy config.yaml.EXAMPLE to ", CONFIG_FILE, " and update accordingly.")
+    sys.exit()
 
 parser = argparse.ArgumentParser()
 parser.add_argument("-e", "--event",                help = "Event Name")
@@ -77,9 +79,18 @@ if args.destination:
 
 def dump_yaml(dictionary, file):
     """ dump a dictionary to a yaml file """
+    one_million = 1000**2
     with open(file, 'w') as f:
-        yaml.dump(dictionary, f)
+        yaml.dump(
+                dictionary, f,
+                default_flow_style=False,
+                width=one_million)
 
+def is_file(file):
+    """ Determine if the object is a file. """
+    return bool(os.path.isfile(file))
+
+'''
 def md5_hash(file):
     """ calculates and returns md5 hash  """
     if config['verify_checksum']:
@@ -90,10 +101,33 @@ def md5_hash(file):
     else:
         md5 = 'no_verify'
     return md5
+'''
+
+def xx_hash(file):
+    """ calculates and returns file hash based on xxHash """
+    if config['verify_checksum']:
+        size = os.path.getsize(file)
+        hasher = xxhash.xxh64()
+        with open(file, 'rb') as f:
+            with tqdm(total=size,
+                      unit='B',
+                      unit_scale=True,
+                      desc=f'Getting hash for {os.path.basename(file)}') as pbar:
+                for chunk in iter(lambda: f.read(4096), b""):
+                    hasher.update(chunk)
+                    pbar.update(len(chunk))
+        file_hash = hasher.hexdigest()
+    else:
+        file_hash = 'no_verify'
+    return file_hash
 
 def cmp_files(file_1,file_2):
     """ Use file hashes to compare files """
-    return md5_hash(file_1) == md5_hash(file_2)
+    hash1 = xx_hash(file_1)
+    hash2 = xx_hash(file_2)
+    print(f'\n{hash1}')
+    print(f'\n{hash2}')
+    return hash1 == hash2
 
 def get_capture_date(path, f_type):
     """ get capture date from meta """
@@ -131,14 +165,30 @@ def get_capture_date(path, f_type):
             stamp = datetime.strptime(
                     str('1900:01:01 00:00:00'), '%Y:%m:%d %H:%M:%S')
     elif f_type == 'video':
+        try:
             stamp = datetime.strptime(
                     ffmpeg.probe(path)['format']['tags']['creation_time'],
                         '%Y-%m-%dT%H:%M:%S.%f%z')
+        except:
+            print(f"\n{path} had an error.  Please inspect the file and try again.")
+            sys.exit()
     elif f_type == 'audio':
-        stamp = datetime.strptime(
+        try:
-                ffmpeg.probe(path)['format']['tags']['date'], '%Y-%m-%d')
+            stamp = datetime.strptime(ffmpeg.probe(
-    else:
+                path)['format']['tags']['date'], '%Y-%m-%d')
+        except KeyError as ke:
+            print(f'\nError: {ke} for {path}.  Trying getctime...')
+            try:
                 stamp = datetime.fromtimestamp(os.path.getctime(path))
+            except:
+                print(f'\nCould not get timestamp for {path}.  Giving up.')
+                sys.exit()
+    else:
+        try:
+            stamp = datetime.fromtimestamp(os.path.getctime(path))
+        except:
+            print(f'\nCould not get timestamp for {path}.  Giving up.')
+            sys.exit()
 
     year = stamp.strftime("%Y")
     month = stamp.strftime("%m")
@@ -184,26 +234,49 @@ def create_folder(file):
     elif is_dir(file) is False:
         pass # this needs to turn into bailing out as there is a collision.
 
+def copy_with_progress(s,d,f):
+    """ Copy a file with the progress bar """
+    size = os.path.getsize(s)
+    with open(s, 'rb') as fs:
+        with open(d, 'wb') as fd:
+            with tqdm(total=size, unit='B', unit_scale=True, desc=f'Copying {f}') as pbar:
+                while True:
+                    chunk = fs.read(4096)
+                    if not chunk:
+                        break
+                    fd.write(chunk)
+                    pbar.update(len(chunk))
+
 def copy_from_source(source_path,dest_path,file_name):
     """ Copy file from source to destination """
 
     file_exists = path_exists(os.path.join(dest_path,file_name))
 
     if file_exists is True:
+        print(f'\nFound {file_name} at destination, checking if they match.')
         check_match = cmp_files(os.path.join(source_path,file_name),
                             os.path.join(dest_path, file_name))
         if check_match is False:
-            print(f'Found duplicate for {source_path}, renaming destination with md5 appended.')
+            print(f'\nFound duplicate for {source_path}/{file_name}, \
+                  renaming destination with hash appended.')
             base, extension = os.path.splitext(file_name)
-            md5 = md5_hash(os.path.join(dest_path, file_name))
+            #md5 = md5_hash(os.path.join(dest_path, file_name))
-            file_name_hash = base + '_' + md5 + extension
+            f_xxhash = xx_hash(os.path.join(dest_path, file_name))
+            #file_name_hash = base + '_' + md5 + extension
+            file_name_hash = base + '_' + f_xxhash + extension
             os.rename(os.path.join(dest_path, file_name),
                     os.path.join(dest_path, file_name_hash))
         else:
+            print(f'\n{file_name} hashes match')
             return
 
     create_folder(dest_path)
-    shutil.copy(os.path.join(source_path,file_name), dest_path)
+    #shutil.copy(os.path.join(source_path,file_name), dest_path)
+    copy_with_progress(os.path.join(source_path,file_name),
+                       os.path.join(dest_path,file_name),
+                       file_name)
+
+    os.system('clear')
 
 def process_file(path, f_type, f_name, ext):
     """ gather information and add to dictionary """
@@ -269,13 +342,18 @@ def process_file(path, f_type, f_name, ext):
 
 def find_files(directory):
     """ find files to build a dictionary out of """
+    os.system('clear')
     for folder, subfolders, filename in os.walk(directory):
         for f_type in config['file_types']:
             for ext in config['file_types'][f_type]:
-                for file in tqdm(filename, desc = 'Finding ' + ext + ' Files', ncols = 100):
+                for file in tqdm(filename,
+                                 desc = 'Finding ' + ext + ' Files in ' + folder):
                     if file.lower().endswith(ext):
-                        # print(file)
+                        current_file = os.path.join(folder,file)
+                        if is_file(current_file):
                             process_file(folder, f_type, file, ext)
+                        else:
+                            print(f"Skipping {current_file} as it does not look like a real file.")
 
 def validate_config_dir_access():
     """ Validate we can operate in the defined directories """
@@ -299,7 +377,8 @@ def validate_config_dir_access():
 
 def copy_files():
     """ Copy Files. """
-    for file in tqdm(files, desc = "Copying Files:", ncols = 100):
+    os.system('clear')
+    for file in tqdm(files, desc = "Copying Files:"):
         create_folder(files[file]['folders']['destination'])
 
         copy_from_source(files[file]['folders']['source_path'],
@@ -314,6 +393,7 @@ def copy_files():
                                  files[file]['folders']['destination_original'],
                                  files[file]['name'])
 
+'''
 def gen_hashes():
     """ Generate Hashes """
     for file in tqdm(files, desc = "Generating MD5 Hashes:", ncols = 100):
@@ -322,7 +402,20 @@ def gen_hashes():
         for folder in files[file]['folders']:
             k = os.path.join(files[file]['folders'][folder], files[file]['name'])
             files[file]['md5_checksums'][k] = md5_hash(k)
+'''
 
+def gen_xxhashes():
+    """ Generate xxHashes """
+    os.system('clear')
+    for file in tqdm(files, desc = "Generating xx Hashes:"):
+        #print(files[file])
+        files[file]['xx_checksums'] = {}
+        for folder in files[file]['folders']:
+            k = os.path.join(files[file]['folders'][folder], files[file]['name'])
+            files[file]['xx_checksums'][k] = xx_hash(k)
+            print(f"{k}: {files[file]['xx_checksums'][k]}")
+
+'''
 def validate_checksums():
     """ Validate Checksums """
     for file in tqdm(files, desc = "Verifying Checksums:", ncols = 100):
@@ -341,11 +434,33 @@ def validate_checksums():
                     print('\n File Meta:\n')
                     pprint(files[file])
             i = i + 1
+'''
+
+def validate_xx_checksums():
+    """ Validate Checksums """
+    os.system('clear')
+    for file in tqdm(files, desc = "Verifying Checksums:"):
+        i = 0
+        c = {}
+        for checksum in files[file]['xx_checksums']:
+            c[i] = files[file]['xx_checksums'][checksum]
+            if i > 0:
+                p = i - 1
+                if c[i] == c[p]:
+                    files[file]['source_cleanable'] = True
+                else:
+                    files[file]['source_cleanable'] = False
+                    print(f'FATAL: Checksum validation failed for: \
+                            {files[file]["name"]} \n{c[i]}\n is not equal to \n{c[p]}\n')
+                    print('\n File Meta:\n')
+                    pprint(files[file])
+            i = i + 1
 
 def cleanup_sd():
     """ If we should clean up the SD, nuke the copied files. """
     if config['cleanup_sd'] is True:
-        for file in tqdm(files, desc = "Cleaning Up SD:", ncols = 100):
+        os.system('clear')
+        for file in tqdm(files, desc = "Cleaning Up SD:"):
             if files[file]['source_cleanable'] is True:
                 os.remove(os.path.join(files[file]['folders']['source_path'],files[file]['name']))
 
@@ -353,8 +468,8 @@ GO = validate_config_dir_access()
 if GO is True:
     find_files(config['folders']['source']['base'])
     copy_files()
-    gen_hashes()
+    gen_xxhashes()
-    validate_checksums()
+    validate_xx_checksums()
     cleanup_sd()
 else:
     print("There was a problem accessing one or more directories defined in the configuration.")