feat(template): Implement custom filename template formatter with variable substitution

This commit is contained in:
Andy
2025-08-15 23:37:12 +00:00
parent 50a5a23341
commit e30a3c71c7
5 changed files with 349 additions and 198 deletions

View File

@@ -90,8 +90,7 @@ class Config:
self.tmdb_api_key: str = kwargs.get("tmdb_api_key") or ""
self.update_checks: bool = kwargs.get("update_checks", True)
self.update_check_interval: int = kwargs.get("update_check_interval", 24)
self.scene_naming: bool = kwargs.get("scene_naming", True)
self.series_year: bool = kwargs.get("series_year", True)
self.output_template: dict = kwargs.get("output_template") or {}
self.title_cache_time: int = kwargs.get("title_cache_time", 1800) # 30 minutes default
self.title_cache_max_retention: int = kwargs.get("title_cache_max_retention", 86400) # 24 hours default

View File

@@ -12,6 +12,7 @@ from unshackle.core.config import config
from unshackle.core.constants import AUDIO_CODEC_MAP, DYNAMIC_RANGE_MAP, VIDEO_CODEC_MAP
from unshackle.core.titles.title import Title
from unshackle.core.utilities import sanitize_filename
from unshackle.core.utils.template_formatter import TemplateFormatter
class Episode(Title):
@@ -78,117 +79,123 @@ class Episode(Title):
self.year = year
self.description = description
def _build_template_context(self, media_info: MediaInfo, show_service: bool = True) -> dict:
"""Build template context dictionary from MediaInfo."""
primary_video_track = next(iter(media_info.video_tracks), None)
primary_audio_track = next(iter(media_info.audio_tracks), None)
unique_audio_languages = len({x.language.split("-")[0] for x in media_info.audio_tracks if x.language})
context = {
"title": self.title.replace("$", "S"),
"year": self.year or "",
"season": f"S{self.season:02}",
"episode": f"E{self.number:02}",
"season_episode": f"S{self.season:02}E{self.number:02}",
"episode_name": self.name or "",
"tag": config.tag or "",
"source": self.service.__name__ if show_service else "",
}
# Video information
if primary_video_track:
resolution = primary_video_track.height
aspect_ratio = [int(float(plane)) for plane in primary_video_track.other_display_aspect_ratio[0].split(":")]
if len(aspect_ratio) == 1:
aspect_ratio.append(1)
if aspect_ratio[0] / aspect_ratio[1] not in (16 / 9, 4 / 3):
resolution = int(primary_video_track.width * (9 / 16))
context.update(
{
"quality": f"{resolution}p",
"resolution": str(resolution),
"video": VIDEO_CODEC_MAP.get(primary_video_track.format, primary_video_track.format),
}
)
# HDR information
hdr_format = primary_video_track.hdr_format_commercial
trc = primary_video_track.transfer_characteristics or primary_video_track.transfer_characteristics_original
if hdr_format:
if (primary_video_track.hdr_format or "").startswith("Dolby Vision"):
context["hdr"] = "DV"
base_layer = DYNAMIC_RANGE_MAP.get(hdr_format)
if base_layer and base_layer != "DV":
context["hdr"] += f".{base_layer}"
else:
context["hdr"] = DYNAMIC_RANGE_MAP.get(hdr_format, "")
elif trc and "HLG" in trc:
context["hdr"] = "HLG"
else:
context["hdr"] = ""
# High frame rate
frame_rate = float(primary_video_track.frame_rate)
context["hfr"] = "HFR" if frame_rate > 30 else ""
# Audio information
if primary_audio_track:
codec = primary_audio_track.format
channel_layout = primary_audio_track.channel_layout or primary_audio_track.channellayout_original
if channel_layout:
channels = float(sum({"LFE": 0.1}.get(position.upper(), 1) for position in channel_layout.split(" ")))
else:
channel_count = primary_audio_track.channel_s or primary_audio_track.channels or 0
channels = float(channel_count)
features = primary_audio_track.format_additionalfeatures or ""
context.update(
{
"audio": AUDIO_CODEC_MAP.get(codec, codec),
"audio_channels": f"{channels:.1f}",
"audio_full": f"{AUDIO_CODEC_MAP.get(codec, codec)}{channels:.1f}",
"atmos": "Atmos" if ("JOC" in features or primary_audio_track.joc) else "",
}
)
# Multi-language audio
if unique_audio_languages == 2:
context["dual"] = "DUAL"
context["multi"] = ""
elif unique_audio_languages > 2:
context["dual"] = ""
context["multi"] = "MULTi"
else:
context["dual"] = ""
context["multi"] = ""
return context
def __str__(self) -> str:
return "{title}{year} S{season:02}E{number:02} {name}".format(
title=self.title,
year=f" {self.year}" if self.year and config.series_year else "",
year=f" {self.year}" if self.year else "",
season=self.season,
number=self.number,
name=self.name or "",
).strip()
def get_filename(self, media_info: MediaInfo, folder: bool = False, show_service: bool = True) -> str:
primary_video_track = next(iter(media_info.video_tracks), None)
primary_audio_track = next(iter(media_info.audio_tracks), None)
unique_audio_languages = len({x.language.split("-")[0] for x in media_info.audio_tracks if x.language})
# Title [Year] SXXEXX Name (or Title [Year] SXX if folder)
if folder:
# For folders, use simple naming: "Title Year S01"
name = f"{self.title}"
if self.year and config.series_year:
if self.year:
name += f" {self.year}"
name += f" S{self.season:02}"
else:
name = "{title}{year} S{season:02}E{number:02} {name}".format(
title=self.title.replace("$", "S"), # e.g., Arli$$
year=f" {self.year}" if self.year and config.series_year else "",
season=self.season,
number=self.number,
name=self.name or "",
).strip()
if config.scene_naming:
# Resolution
if primary_video_track:
resolution = primary_video_track.height
aspect_ratio = [
int(float(plane)) for plane in primary_video_track.other_display_aspect_ratio[0].split(":")
]
if len(aspect_ratio) == 1:
# e.g., aspect ratio of 2 (2.00:1) would end up as `(2.0,)`, add 1
aspect_ratio.append(1)
if aspect_ratio[0] / aspect_ratio[1] not in (16 / 9, 4 / 3):
# We want the resolution represented in a 4:3 or 16:9 canvas.
# If it's not 4:3 or 16:9, calculate as if it's inside a 16:9 canvas,
# otherwise the track's height value is fine.
# We are assuming this title is some weird aspect ratio so most
# likely a movie or HD source, so it's most likely widescreen so
# 16:9 canvas makes the most sense.
resolution = int(primary_video_track.width * (9 / 16))
name += f" {resolution}p"
# Service
if show_service:
name += f" {self.service.__name__}"
# 'WEB-DL'
name += " WEB-DL"
# DUAL
if unique_audio_languages == 2:
name += " DUAL"
# MULTi
if unique_audio_languages > 2:
name += " MULTi"
# Audio Codec + Channels (+ feature)
if primary_audio_track:
codec = primary_audio_track.format
channel_layout = primary_audio_track.channel_layout or primary_audio_track.channellayout_original
if channel_layout:
channels = float(
sum({"LFE": 0.1}.get(position.upper(), 1) for position in channel_layout.split(" "))
)
else:
channel_count = primary_audio_track.channel_s or primary_audio_track.channels or 0
channels = float(channel_count)
features = primary_audio_track.format_additionalfeatures or ""
name += f" {AUDIO_CODEC_MAP.get(codec, codec)}{channels:.1f}"
if "JOC" in features or primary_audio_track.joc:
name += " Atmos"
# Video (dynamic range + hfr +) Codec
if primary_video_track:
codec = primary_video_track.format
hdr_format = primary_video_track.hdr_format_commercial
trc = (
primary_video_track.transfer_characteristics
or primary_video_track.transfer_characteristics_original
)
frame_rate = float(primary_video_track.frame_rate)
if hdr_format:
if (primary_video_track.hdr_format or "").startswith("Dolby Vision"):
name += " DV"
if DYNAMIC_RANGE_MAP.get(hdr_format) and DYNAMIC_RANGE_MAP.get(hdr_format) != "DV":
name += " HDR"
else:
name += f" {DYNAMIC_RANGE_MAP.get(hdr_format)} "
elif trc and "HLG" in trc:
name += " HLG"
if frame_rate > 30:
name += " HFR"
name += f" {VIDEO_CODEC_MAP.get(codec, codec)}"
if config.tag:
name += f"-{config.tag}"
return sanitize_filename(name)
else:
# Simple naming style without technical details - use spaces instead of dots
return sanitize_filename(name, " ")
# Use custom template if defined, otherwise use default scene-style template
template = (
config.output_template.get("series")
or "{title}.{year?}.{season_episode}.{episode_name?}.{quality}.{source}.WEB-DL.{dual?}.{multi?}.{audio_full}.{atmos?}.{hdr?}.{hfr?}.{video}-{tag}"
)
formatter = TemplateFormatter(template)
context = self._build_template_context(media_info, show_service)
return formatter.format(context)
class Series(SortedKeyList, ABC):
def __init__(self, iterable: Optional[Iterable] = None):
@@ -197,7 +204,7 @@ class Series(SortedKeyList, ABC):
def __str__(self) -> str:
if not self:
return super().__str__()
return self[0].title + (f" ({self[0].year})" if self[0].year and config.series_year else "")
return self[0].title + (f" ({self[0].year})" if self[0].year else "")
def tree(self, verbose: bool = False) -> Tree:
seasons = Counter(x.season for x in self)

View File

@@ -9,7 +9,7 @@ from sortedcontainers import SortedKeyList
from unshackle.core.config import config
from unshackle.core.constants import AUDIO_CODEC_MAP, DYNAMIC_RANGE_MAP, VIDEO_CODEC_MAP
from unshackle.core.titles.title import Title
from unshackle.core.utilities import sanitize_filename
from unshackle.core.utils.template_formatter import TemplateFormatter
class Movie(Title):
@@ -45,100 +45,106 @@ class Movie(Title):
self.year = year
self.description = description
def _build_template_context(self, media_info: MediaInfo, show_service: bool = True) -> dict:
"""Build template context dictionary from MediaInfo."""
primary_video_track = next(iter(media_info.video_tracks), None)
primary_audio_track = next(iter(media_info.audio_tracks), None)
unique_audio_languages = len({x.language.split("-")[0] for x in media_info.audio_tracks if x.language})
context = {
"title": self.name.replace("$", "S"),
"year": self.year or "",
"tag": config.tag or "",
"source": self.service.__name__ if show_service else "",
}
# Video information
if primary_video_track:
resolution = primary_video_track.height
aspect_ratio = [int(float(plane)) for plane in primary_video_track.other_display_aspect_ratio[0].split(":")]
if len(aspect_ratio) == 1:
aspect_ratio.append(1)
if aspect_ratio[0] / aspect_ratio[1] not in (16 / 9, 4 / 3):
resolution = int(primary_video_track.width * (9 / 16))
context.update(
{
"quality": f"{resolution}p",
"resolution": str(resolution),
"video": VIDEO_CODEC_MAP.get(primary_video_track.format, primary_video_track.format),
}
)
# HDR information
hdr_format = primary_video_track.hdr_format_commercial
trc = primary_video_track.transfer_characteristics or primary_video_track.transfer_characteristics_original
if hdr_format:
if (primary_video_track.hdr_format or "").startswith("Dolby Vision"):
context["hdr"] = "DV"
base_layer = DYNAMIC_RANGE_MAP.get(hdr_format)
if base_layer and base_layer != "DV":
context["hdr"] += f".{base_layer}"
else:
context["hdr"] = DYNAMIC_RANGE_MAP.get(hdr_format, "")
elif trc and "HLG" in trc:
context["hdr"] = "HLG"
else:
context["hdr"] = ""
# High frame rate
frame_rate = float(primary_video_track.frame_rate)
context["hfr"] = "HFR" if frame_rate > 30 else ""
# Audio information
if primary_audio_track:
codec = primary_audio_track.format
channel_layout = primary_audio_track.channel_layout or primary_audio_track.channellayout_original
if channel_layout:
channels = float(sum({"LFE": 0.1}.get(position.upper(), 1) for position in channel_layout.split(" ")))
else:
channel_count = primary_audio_track.channel_s or primary_audio_track.channels or 0
channels = float(channel_count)
features = primary_audio_track.format_additionalfeatures or ""
context.update(
{
"audio": AUDIO_CODEC_MAP.get(codec, codec),
"audio_channels": f"{channels:.1f}",
"audio_full": f"{AUDIO_CODEC_MAP.get(codec, codec)}{channels:.1f}",
"atmos": "Atmos" if ("JOC" in features or primary_audio_track.joc) else "",
}
)
# Multi-language audio
if unique_audio_languages == 2:
context["dual"] = "DUAL"
context["multi"] = ""
elif unique_audio_languages > 2:
context["dual"] = ""
context["multi"] = "MULTi"
else:
context["dual"] = ""
context["multi"] = ""
return context
def __str__(self) -> str:
if self.year:
return f"{self.name} ({self.year})"
return self.name
def get_filename(self, media_info: MediaInfo, folder: bool = False, show_service: bool = True) -> str:
primary_video_track = next(iter(media_info.video_tracks), None)
primary_audio_track = next(iter(media_info.audio_tracks), None)
unique_audio_languages = len({x.language.split("-")[0] for x in media_info.audio_tracks if x.language})
# Use custom template if defined, otherwise use default scene-style template
template = (
config.output_template.get("movies")
or "{title}.{year}.{quality}.{source}.WEB-DL.{dual?}.{multi?}.{audio_full}.{atmos?}.{hdr?}.{hfr?}.{video}-{tag}"
)
# Name (Year)
name = str(self).replace("$", "S") # e.g., Arli$$
if config.scene_naming:
# Resolution
if primary_video_track:
resolution = primary_video_track.height
aspect_ratio = [
int(float(plane)) for plane in primary_video_track.other_display_aspect_ratio[0].split(":")
]
if len(aspect_ratio) == 1:
# e.g., aspect ratio of 2 (2.00:1) would end up as `(2.0,)`, add 1
aspect_ratio.append(1)
if aspect_ratio[0] / aspect_ratio[1] not in (16 / 9, 4 / 3):
# We want the resolution represented in a 4:3 or 16:9 canvas.
# If it's not 4:3 or 16:9, calculate as if it's inside a 16:9 canvas,
# otherwise the track's height value is fine.
# We are assuming this title is some weird aspect ratio so most
# likely a movie or HD source, so it's most likely widescreen so
# 16:9 canvas makes the most sense.
resolution = int(primary_video_track.width * (9 / 16))
name += f" {resolution}p"
# Service
if show_service:
name += f" {self.service.__name__}"
# 'WEB-DL'
name += " WEB-DL"
# DUAL
if unique_audio_languages == 2:
name += " DUAL"
# MULTi
if unique_audio_languages > 2:
name += " MULTi"
# Audio Codec + Channels (+ feature)
if primary_audio_track:
codec = primary_audio_track.format
channel_layout = primary_audio_track.channel_layout or primary_audio_track.channellayout_original
if channel_layout:
channels = float(
sum({"LFE": 0.1}.get(position.upper(), 1) for position in channel_layout.split(" "))
)
else:
channel_count = primary_audio_track.channel_s or primary_audio_track.channels or 0
channels = float(channel_count)
features = primary_audio_track.format_additionalfeatures or ""
name += f" {AUDIO_CODEC_MAP.get(codec, codec)}{channels:.1f}"
if "JOC" in features or primary_audio_track.joc:
name += " Atmos"
# Video (dynamic range + hfr +) Codec
if primary_video_track:
codec = primary_video_track.format
hdr_format = primary_video_track.hdr_format_commercial
trc = (
primary_video_track.transfer_characteristics
or primary_video_track.transfer_characteristics_original
)
frame_rate = float(primary_video_track.frame_rate)
if hdr_format:
if (primary_video_track.hdr_format or "").startswith("Dolby Vision"):
name += " DV"
if DYNAMIC_RANGE_MAP.get(hdr_format) and DYNAMIC_RANGE_MAP.get(hdr_format) != "DV":
name += " HDR"
else:
name += f" {DYNAMIC_RANGE_MAP.get(hdr_format)} "
elif trc and "HLG" in trc:
name += " HLG"
if frame_rate > 30:
name += " HFR"
name += f" {VIDEO_CODEC_MAP.get(codec, codec)}"
if config.tag:
name += f"-{config.tag}"
return sanitize_filename(name)
else:
# Simple naming style without technical details - use spaces instead of dots
return sanitize_filename(name, " ")
formatter = TemplateFormatter(template)
context = self._build_template_context(media_info, show_service)
return formatter.format(context)
class Movies(SortedKeyList, ABC):

View File

@@ -0,0 +1,114 @@
import re
from typing import Dict, Any, List, Optional
from unshackle.core.utilities import sanitize_filename
class TemplateFormatter:
"""
Template formatter for custom filename patterns.
Supports variable substitution and conditional variables.
Example: '{title}.{year}.{quality?}.{source}-{tag}'
"""
def __init__(self, template: str):
"""Initialize the template formatter.
Args:
template: Template string with variables in {variable} format
"""
self.template = template
self.variables = self._extract_variables()
def _extract_variables(self) -> List[str]:
"""Extract all variables from the template."""
pattern = r'\{([^}]+)\}'
matches = re.findall(pattern, self.template)
return [match.strip() for match in matches]
def format(self, context: Dict[str, Any]) -> str:
"""Format the template with the provided context.
Args:
context: Dictionary containing variable values
Returns:
Formatted filename string
"""
result = self.template
for variable in self.variables:
placeholder = '{' + variable + '}'
is_conditional = variable.endswith('?')
if is_conditional:
# Remove the ? for conditional variables
var_name = variable[:-1]
value = context.get(var_name, '')
if value:
# Replace with actual value
result = result.replace(placeholder, str(value))
else:
# Remove the placeholder entirely for empty conditional variables
result = result.replace(placeholder, '')
else:
# Regular variable
value = context.get(variable, '')
result = result.replace(placeholder, str(value))
# Clean up multiple consecutive dots/separators and other artifacts
result = re.sub(r'\.{2,}', '.', result) # Multiple dots -> single dot
result = re.sub(r'\s{2,}', ' ', result) # Multiple spaces -> single space
result = re.sub(r'^[\.\s]+|[\.\s]+$', '', result) # Remove leading/trailing dots and spaces
result = re.sub(r'\.-', '-', result) # Remove dots before dashes (for dot-based templates)
result = re.sub(r'[\.\s]+\)', ')', result) # Remove dots/spaces before closing parentheses
# Determine the appropriate separator based on template style
# If the template contains spaces (like Plex-friendly), preserve them
if ' ' in self.template and '.' not in self.template:
# Space-based template (Plex-friendly) - use space separator
result = sanitize_filename(result, spacer=' ')
else:
# Dot-based template (scene-style) - use dot separator
result = sanitize_filename(result, spacer='.')
return result
def validate(self, context: Dict[str, Any]) -> tuple[bool, List[str]]:
"""Validate that all required variables are present in context.
Args:
context: Dictionary containing variable values
Returns:
Tuple of (is_valid, missing_variables)
"""
missing = []
for variable in self.variables:
is_conditional = variable.endswith('?')
var_name = variable[:-1] if is_conditional else variable
# Only check non-conditional variables
if not is_conditional and var_name not in context:
missing.append(var_name)
return len(missing) == 0, missing
def get_required_variables(self) -> List[str]:
"""Get list of required (non-conditional) variables."""
required = []
for variable in self.variables:
if not variable.endswith('?'):
required.append(variable)
return required
def get_optional_variables(self) -> List[str]:
"""Get list of optional (conditional) variables."""
optional = []
for variable in self.variables:
if variable.endswith('?'):
optional.append(variable[:-1]) # Remove the ?
return optional

View File

@@ -10,15 +10,40 @@ tag_imdb_tmdb: true
# Set terminal background color (custom option not in CONFIG.md)
set_terminal_bg: false
# Set file naming convention
# true for style - Prime.Suspect.S07E01.The.Final.Act.Part.One.1080p.ITV.WEB-DL.AAC2.0.H.264
# false for style - Prime Suspect S07E01 The Final Act - Part One
scene_naming: true
# File naming is now controlled via output_template (see below)
# Default behavior provides scene-style naming similar to the old scene_naming: true
# Whether to include the year in series names for episodes and folders (default: true)
# true for style - Show Name (2023) S01E01 Episode Name
# false for style - Show Name S01E01 Episode Name
series_year: true
# Custom output templates for filenames
# When not defined, defaults to scene-style naming equivalent to the old scene_naming: true
# Available variables: {title}, {year}, {season}, {episode}, {season_episode}, {episode_name},
# {quality}, {resolution}, {source}, {audio}, {audio_channels}, {audio_full},
# {video}, {hdr}, {hfr}, {atmos}, {dual}, {multi}, {tag}
# Conditional variables (included only if present): Add ? suffix like {year?}, {episode_name?}, {hdr?}
# Uncomment and customize the templates below:
#
# output_template:
# # Scene-style naming (dot-separated) - Default behavior when no template is defined
# movies: '{title}.{year}.{quality}.{source}.WEB-DL.{dual?}.{multi?}.{audio_full}.{atmos?}.{hdr?}.{hfr?}.{video}-{tag}'
# series: '{title}.{year?}.{season_episode}.{episode_name?}.{quality}.{source}.WEB-DL.{dual?}.{multi?}.{audio_full}.{atmos?}.{hdr?}.{hfr?}.{video}-{tag}'
#
# # Plex-friendly naming (space-separated, clean format)
# # movies: '{title} ({year}) {quality}'
# # series: '{title} {season_episode} {episode_name?}'
#
# # Minimal naming (basic info only)
# # movies: '{title}.{year}.{quality}'
# # series: '{title}.{season_episode}.{episode_name?}'
#
# # Custom scene-style with specific elements
# # movies: '{title}.{year}.{quality}.{hdr?}.{source}.WEB-DL.{audio_full}.{video}-{tag}'
# # series: '{title}.{year?}.{season_episode}.{episode_name?}.{quality}.{hdr?}.{source}.WEB-DL.{audio_full}.{atmos?}.{video}-{tag}'
#
# Example outputs:
# Scene movies: 'The.Matrix.1999.1080p.NF.WEB-DL.DDP5.1.H.264-EXAMPLE'
# Scene movies (HDR): 'Dune.2021.2160p.HBO.WEB-DL.DDP5.1.HDR10.H.265-EXAMPLE'
# Scene series: 'Breaking.Bad.2008.S01E01.Pilot.1080p.NF.WEB-DL.DDP5.1.H.264-EXAMPLE'
# Plex movies: 'The Matrix (1999) 1080p'
# Plex series: 'Breaking Bad S01E01 Pilot'
# Check for updates from GitHub repository on startup (default: true)
update_checks: true
@@ -28,9 +53,9 @@ update_check_interval: 24
# Title caching configuration
# Cache title metadata to reduce redundant API calls
title_cache_enabled: true # Enable/disable title caching globally (default: true)
title_cache_time: 1800 # Cache duration in seconds (default: 1800 = 30 minutes)
title_cache_max_retention: 86400 # Maximum cache retention for fallback when API fails (default: 86400 = 24 hours)
title_cache_enabled: true # Enable/disable title caching globally (default: true)
title_cache_time: 1800 # Cache duration in seconds (default: 1800 = 30 minutes)
title_cache_max_retention: 86400 # Maximum cache retention for fallback when API fails (default: 86400 = 24 hours)
# Muxing configuration
muxing: