Merge pull request #4 from iluvcapra/feat-rename

Feature: Rename

.github/workflows/pylint.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}

.github/workflows/python-publish.yml

@@ -35,4 +35,4 @@ jobs:
     - name: Build package
       run: python -m build
     - name: Publish package
-      uses: pypa/gh-action-pypi-publish@v1.8.6
+      uses: pypa/gh-action-pypi-publish@v1.12.4

.gitignore

@@ -2,3 +2,4 @@
 dist/
 *.pyc
 poetry.lock
+.venv/

mfbatch/__main__.py

@@ -4,12 +4,13 @@ mfbatch main - Command entrypoint for mfbatch
 
 import os
 from glob import glob
-from subprocess import run
+from subprocess import CalledProcessError, run
 import sys
 from argparse import ArgumentParser
 import shlex
-from typing import Callable
+from typing import Callable, List, Tuple
 import inspect
+from io import StringIO
 
 from tqdm import tqdm
 
@@ -29,37 +30,83 @@ def execute_batch_list(batch_list_path: str, dry_run: bool, interactive: bool):
                 parser.eval(line, line_no, interactive)
 
 
-def create_batch_list(command_file: str, recursive=True):
+def sort_flac_files(file_list, mode):
+    "Sort flac files"
+    if mode == 'path':
+        return sorted(file_list)
+    if mode == 'mtime':
+        return sorted(file_list, key=os.path.getmtime)
+    if mode == 'ctime':
+        return sorted(file_list, key=os.path.getctime)
+    if mode == 'name':
+        return sorted(file_list, key=os.path.basename)
+
+    return file_list
+
+
+def write_batchfile_entries_for_file(path, metadatums) -> Tuple[dict, str]:
+    "Create batchfile entries for `path`"
+    buffer = StringIO()
+
+    try:
+        this_file_metadata = metadata_funcs.read_metadata(path)
+
+    except CalledProcessError as e:
+        buffer.write(f"# !!! METAFLAC ERROR ({e.returncode}) while reading "
+                     f"metadata from the file {path}\n\n")
+        return metadatums, buffer.getvalue()
+
+    for this_key, this_value in this_file_metadata.items():
+        if this_key not in metadatums:
+            buffer.write(f":set {this_key} "
+                         f"{shlex.quote(this_value)}\n")
+            metadatums[this_key] = this_value
+        else:
+            if this_value != metadatums[this_key]:
+                buffer.write(f":set {this_key} "
+                             f"{shlex.quote(this_value)}"
+                             "\n")
+                metadatums[this_key] = this_value
+
+    keys = list(metadatums.keys())
+    for key in keys:
+        if key not in this_file_metadata:
+            buffer.write(f":unset {key}\n")
+            del metadatums[key]
+
+    buffer.write(path + "\n\n")
+
+    return metadatums, buffer.getvalue()
+
+
+def create_batch_list(flac_files: List[str], command_file: str,
+                      sort_mode='path'):
     """
     Read all FLAC files in the cwd and create a batchfile that re-creates all
     of their metadata.
+
+    :param flac_files: Paths of files to create batchfile from 
+    :param command_file: Name of new batchfile
+    :param sort_mode: Order of paths in the batch list. Either 'path', 
+        'mtime', 'ctime', 'name'
+    :param input_files: FLAC files to scan
     """
+
+    flac_files = sort_flac_files(flac_files, sort_mode)
+
     with open(command_file, mode='w', encoding='utf-8') as f:
-        f.write("# mfbatch\n\n")
         metadatums = {}
-        flac_files = glob('./**/*.flac', recursive=recursive)
-        flac_files = sorted(flac_files)
-        for path in tqdm(flac_files, unit='File', desc='Scanning FLAC files'):
-            this_file_metadata = metadata_funcs.read_metadata(path)
-            for this_key, this_value in this_file_metadata.items():
-                if this_key not in metadatums:
-                    f.write(f":set {this_key} "
-                            f"{shlex.quote(this_value)}\n")
-                    metadatums[this_key] = this_value
-                else:
-                    if this_value != metadatums[this_key]:
-                        f.write(f":set {this_key} "
-                                f"{shlex.quote(this_value)}"
-                                "\n")
-                        metadatums[this_key] = this_value
 
-            keys = list(metadatums.keys())
-            for key in keys:
-                if key not in this_file_metadata:
-                    f.write(f":unset {key}\n")
-                    del metadatums[key]
+        f.write("# mfbatch\n\n")
 
-            f.write(path + "\n\n")
+        for path in tqdm(flac_files, unit='File',
+                         desc='Scanning with metaflac...'):
+
+            metadatums, buffer = write_batchfile_entries_for_file(path,
+                                                                  metadatums)
+            f.write(buffer)
+
+        f.write("# mfbatch: create batchlist operation complete\n")
 
 
 def main():
@@ -72,16 +119,23 @@ def main():
     op.add_argument('-c', '--create', default=False,
                     action='store_true',
                     help='create a new list')
+    op.add_argument('-F', '--from-file', metavar='FILE_LIST', action='store',
+                    default=None, help="get file paths from FILE_LIST when "
+                    "creating, instead of scanning directory"
+                    "a new list")
     op.add_argument('-e', '--edit', action='store_true',
                     help="open batch file in the default editor",
                     default=False)
     op.add_argument('-W', '--write', default=False,
                     action='store_true',
                     help="execute batch list, write to files")
-
     op.add_argument('-p', '--path', metavar='DIR',
                     help='chdir to DIR before running',
                     default=None)
+    op.add_argument('-s', '--sort', metavar='MODE', action='store',
+                    default='path', help="when creating, Set mode to sort "
+                    "files by. Default is 'path'. 'ctime, 'mtime' and 'name' "
+                    "are also options.")
     op.add_argument('-n', '--dry-run', action='store_true',
                     help="dry-run -W.")
     op.add_argument('-f', '--batchfile', metavar='FILE',
@@ -101,12 +155,12 @@ def main():
     if options.help_commands:
         print("Command Help\n------------")
         commands = [command for command in dir(BatchfileParser) if
-                    not command.startswith('_')]
+                    not command.startswith('_') and command != "eval"]
         print(f"{inspect.cleandoc(BatchfileParser.__doc__ or '')}\n\n")
         for command in commands:
             meth = getattr(BatchfileParser, command)
             if isinstance(meth, Callable):
-                print(f"{inspect.cleandoc(meth.__doc__ or '')}\n")
+                print(f"- {inspect.cleandoc(meth.__doc__ or '')}\n")
 
         sys.exit(0)
 
@@ -116,7 +170,18 @@ def main():
 
     if options.create:
         mode_given = True
-        create_batch_list(options.batchfile)
+        flac_files: List[str] = []
+
+        if options.from_file:
+            with open(options.from_file, mode='r',
+                      encoding='utf-8') as from_file:
+                flac_files = [line.strip() for line in from_file.readlines()]
+        else:
+            flac_files = glob('./**/*.flac', recursive=True)
+
+        # print(flac_files)
+        create_batch_list(flac_files, options.batchfile,
+                          sort_mode=options.sort)
 
     if options.edit:
         mode_given = True

mfbatch/commands.py

@@ -9,7 +9,7 @@ import shutil
 import re
 import os.path
 
-from typing import Dict, Tuple, Optional
+from typing import Callable, Dict, Tuple, Optional
 
 from mfbatch.metaflac import write_metadata as flac
 
@@ -115,6 +115,9 @@ class CommandEnv:
         del self.metadatums['_FILENAME']
         del self.metadatums['_FOLDER']
 
+        if '_NEW_BASENAME' in self.metadatums:
+            del self.metadatums['_NEW_BASENAME']
+
     def revert_onces(self):
         """
         Revert all set-once keys.
@@ -131,16 +134,17 @@ class CommandEnv:
         """
         Increment all increment keys.
         """
-        for k, v in self.incr.items():
-            v = int(v)
-            self.metadatums[k] = self.incr[k] % (v + 1)
+        for k, _ in self.incr.items():
+            val = int(self.metadatums[k])
+            self.metadatums[k] = self.incr[k] % (val + 1)
 
 
 class BatchfileParser:
     """
 A batchfile is a text file of lines. Lines either begin with a '#' to denote a
 comment, a ':' to denote a Command, and if neither of these are present, the
-line is interpreted as a file path to act upon. Empty lines are ignored.
+line is interpreted as a file path to act upon. Empty lines are ignored. Lines 
+are split into arguments using `shlex.split`.
 
 If a line ends with a backslash '\\', the backslash is deleted and the contents
 of the following line are appended to the end of the present line.
@@ -152,6 +156,7 @@ they appear in the batchfile.
 
     dry_run: bool
     env: CommandEnv
+    write_metadata_f: Callable
 
     COMMAND_LEADER = ':'
     COMMENT_LEADER = '#'
@@ -160,6 +165,7 @@ they appear in the batchfile.
         self.dry_run = True
         self.env = CommandEnv()
         self.write_metadata_f = flac
+        self.outstream = sys.stdout
 
     def eval(self, line: str, lineno: int, interactive: bool):
         """
@@ -189,13 +195,29 @@ they appear in the batchfile.
     def _handle_comment(self, _):
         pass
 
-    def _write_metadata_impl(self, line):
+    def _write_metadata_and_rename_impl(self, line):
         if self.dry_run:
-            print("DRY RUN would write metadata here.")
+            print("DRY RUN would write metadata here.", file=self.outstream)
+
+            if '_NEW_BASENAME' in self.env.metadatums:
+                self.outstream.write('DRY RUN would rename file here.\n')
         else:
-            sys.stdout.write("Writing metadata... ")
+            self.outstream.write("Writing metadata... ")
             self.write_metadata_f(line, self.env.metadatums)
-            sys.stdout.write("Complete!")
+            self.outstream.write("Complete!\n")
+
+            if '_NEW_BASENAME' in self.env.metadatums:
+                self.outstream.write("Attempting to rename... ")
+                full_old_path = os.path.abspath(line)
+                new_name = os.path.join(os.path.dirname(full_old_path),
+                                        self.env.metadatums['_NEW_BASENAME'])
+
+                if not os.path.exists(new_name):
+                    os.rename(line, new_name)
+                    self.outstream.write('File renamed!\n')
+                else:
+                    self.outstream.write('File by new name already exists, '
+                                         'rename was not performed.\n')
 
         self.env.increment_all()
         self.env.revert_onces()
@@ -208,10 +230,10 @@ they appear in the batchfile.
 
         for l in value_lines:
             if key:
-                sys.stdout.write(f"{key:.<30}  \033[4m{l}\033[0m\n")
+                self.outstream.write(f"{key:.<30}  \033[4m{l}\033[0m\n")
                 key = None
             else:
-                sys.stdout.write(f"{' ' * 30}  \033[4m{l}\033[0m\n")
+                self.outstream.write(f"{' ' * 30}  \033[4m{l}\033[0m\n")
 
     def _handle_file(self, line, interactive):
         while True:
@@ -220,9 +242,9 @@ they appear in the batchfile.
             self.env.evaluate_patterns()
 
             if self.dry_run:
-                sys.stdout.write(f"\nDRY RUN File: \033[1m{line}\033[0m\n")
+                self.outstream.write(f"\nDRY RUN File: \033[1m{line}\033[0m\n")
             else:
-                sys.stdout.write(f"\nFile: \033[1m{line}\033[0m\n")
+                self.outstream.write(f"\nFile: \033[1m{line}\033[0m\n")
 
             for key, value in self.env.metadatums.items():
 
@@ -231,10 +253,16 @@ they appear in the batchfile.
 
                 self._print_kv_columnar(key, value)
 
+            if '_NEW_BASENAME' in self.env.metadatums:
+                print("")
+                msg = "File will be renamed:"
+                print(
+                    f"{msg:.<30}  \033[4m{self.env.metadatums['_NEW_BASENAME']}\033[0m\n")
+
             if interactive:
                 val = input('Write? [Y/n/a/:] > ')
                 if val == '' or val[0].upper() == 'Y':
-                    self._write_metadata_impl(line)
+                    self._write_metadata_and_rename_impl(line)
                     break
                 if val.startswith(self.COMMAND_LEADER):
                     self._handle_command(val.lstrip(self.COMMAND_LEADER),
@@ -243,7 +271,7 @@ they appear in the batchfile.
                     print("Aborting write session...", file=sys.stdout)
                     break
             else:
-                self._write_metadata_impl(line)
+                self._write_metadata_and_rename_impl(line)
                 break
 
     def set(self, args):
@@ -319,6 +347,17 @@ they appear in the batchfile.
         repl = args[3]
         self.env.set_pattern(key, inp, pattern, repl)
 
+    def rename(self, args):
+        """
+        rename NEW-BASENAME
+        Renames the next file to NEW-BASENAME. The existing file is renamed
+        while keeping it in the same directory by appending the dirname and 
+        NEW-BASENAME and performing an mv(1). Renaming occurs after metadata 
+        writing. If a file with NEW-BASENAME already exists in the directory,
+        the action will not be performed.
+        """
+        self.env.set_once('_NEW_BASENAME', args[0])
+
     def d(self, args):
         """
         d VALUE
@@ -326,3 +365,18 @@ they appear in the batchfile.
         """
         val = args[0]
         self.env.set_once('DESCRIPTION', val)
+
+    # def picture(self, args):
+    #     """
+    #     picture PATH
+    #     Add PATH as a picture (flac picture type 0) to this and every
+    #     subsequent file.
+    #     """
+    #     pass
+    #
+    # def nopicture(self, args):
+    #     """
+    #     unpicture
+    #     Remove all p
+    #     """
+    #     pass

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "mfbatch"
-version = "0.4.1"
+version = "0.6.0"
 description = "MetaFlac batch editor"
 authors = ["Jamie Hardt <jamiehardt@me.com>"]
 readme = "README.md"
@@ -13,6 +13,7 @@ classifiers = [
   'Environment :: Console',
   'License :: OSI Approved :: MIT License',
   'Topic :: Multimedia :: Sound/Audio :: Editors',
+  'Programming Language :: Python :: 3.13',
   'Programming Language :: Python :: 3.12',
   'Programming Language :: Python :: 3.11',
   'Programming Language :: Python :: 3.10',