download font from url on build (#5254)

Co-authored-by: guillempages <guillempages@users.noreply.github.com>
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
Co-authored-by: clydebarrow <2366188+clydebarrow@users.noreply.github.com>
This commit is contained in:
Landon Rohatensky 2024-03-12 16:07:40 -07:00 committed by GitHub
parent d3a028f7fa
commit 2df9c30446
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
4 changed files with 122 additions and 43 deletions

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@ -1,13 +1,15 @@
import hashlib
import logging
import functools
from pathlib import Path
import hashlib
import os
import re
from packaging import version
import requests
from esphome import core
from esphome import external_files
import esphome.config_validation as cv
import esphome.codegen as cg
from esphome.helpers import (
@ -15,21 +17,26 @@ from esphome.helpers import (
cpp_string_escape,
)
from esphome.const import (
__version__,
CONF_FAMILY,
CONF_FILE,
CONF_GLYPHS,
CONF_ID,
CONF_RAW_DATA_ID,
CONF_TYPE,
CONF_REFRESH,
CONF_SIZE,
CONF_PATH,
CONF_WEIGHT,
CONF_URL,
)
from esphome.core import (
CORE,
HexInt,
)
_LOGGER = logging.getLogger(__name__)
DOMAIN = "font"
DEPENDENCIES = ["display"]
MULTI_CONF = True
@ -125,20 +132,10 @@ def validate_truetype_file(value):
return cv.file_(value)
def _compute_local_font_dir(name) -> Path:
h = hashlib.new("sha256")
h.update(name.encode())
return Path(CORE.data_dir) / DOMAIN / h.hexdigest()[:8]
def _compute_gfonts_local_path(value) -> Path:
name = f"{value[CONF_FAMILY]}@{value[CONF_WEIGHT]}@{value[CONF_ITALIC]}@v1"
return _compute_local_font_dir(name) / "font.ttf"
TYPE_LOCAL = "local"
TYPE_LOCAL_BITMAP = "local_bitmap"
TYPE_GFONTS = "gfonts"
TYPE_WEB = "web"
LOCAL_SCHEMA = cv.Schema(
{
cv.Required(CONF_PATH): validate_truetype_file,
@ -169,21 +166,64 @@ def validate_weight_name(value):
return FONT_WEIGHTS[cv.one_of(*FONT_WEIGHTS, lower=True, space="-")(value)]
def download_gfonts(value):
def _compute_local_font_path(value: dict) -> Path:
url = value[CONF_URL]
h = hashlib.new("sha256")
h.update(url.encode())
key = h.hexdigest()[:8]
base_dir = external_files.compute_local_file_dir(DOMAIN)
_LOGGER.debug("_compute_local_font_path: base_dir=%s", base_dir / key)
return base_dir / key
def get_font_path(value, type) -> Path:
if type == TYPE_GFONTS:
name = f"{value[CONF_FAMILY]}@{value[CONF_WEIGHT]}@{value[CONF_ITALIC]}@v1"
return external_files.compute_local_file_dir(DOMAIN) / f"{name}.ttf"
if type == TYPE_WEB:
return _compute_local_font_path(value) / "font.ttf"
return None
def download_content(url: str, path: Path) -> None:
if not external_files.has_remote_file_changed(url, path):
_LOGGER.debug("Remote file has not changed %s", url)
return
_LOGGER.debug(
"Remote file has changed, downloading from %s to %s",
url,
path,
)
try:
req = requests.get(
url,
timeout=external_files.NETWORK_TIMEOUT,
headers={"User-agent": f"ESPHome/{__version__} (https://esphome.io)"},
)
req.raise_for_status()
except requests.exceptions.RequestException as e:
raise cv.Invalid(f"Could not download from {url}: {e}")
path.parent.mkdir(parents=True, exist_ok=True)
path.write_bytes(req.content)
def download_gfont(value):
name = (
f"{value[CONF_FAMILY]}:ital,wght@{int(value[CONF_ITALIC])},{value[CONF_WEIGHT]}"
)
url = f"https://fonts.googleapis.com/css2?family={name}"
path = get_font_path(value, TYPE_GFONTS)
_LOGGER.debug("download_gfont: path=%s", path)
path = _compute_gfonts_local_path(value)
if path.is_file():
return value
try:
req = requests.get(url, timeout=30)
req = requests.get(url, timeout=external_files.NETWORK_TIMEOUT)
req.raise_for_status()
except requests.exceptions.RequestException as e:
raise cv.Invalid(
f"Could not download font for {name}, please check the fonts exists "
f"Could not download font at {url}, please check the fonts exists "
f"at google fonts ({e})"
)
match = re.search(r"src:\s+url\((.+)\)\s+format\('truetype'\);", req.text)
@ -194,26 +234,48 @@ def download_gfonts(value):
)
ttf_url = match.group(1)
try:
req = requests.get(ttf_url, timeout=30)
req.raise_for_status()
except requests.exceptions.RequestException as e:
raise cv.Invalid(f"Could not download ttf file for {name} ({ttf_url}): {e}")
_LOGGER.debug("download_gfont: ttf_url=%s", ttf_url)
path.parent.mkdir(exist_ok=True, parents=True)
path.write_bytes(req.content)
download_content(ttf_url, path)
return value
GFONTS_SCHEMA = cv.All(
def download_web_font(value):
url = value[CONF_URL]
path = get_font_path(value, TYPE_WEB)
download_content(url, path)
_LOGGER.debug("download_web_font: path=%s", path)
return value
EXTERNAL_FONT_SCHEMA = cv.Schema(
{
cv.Required(CONF_FAMILY): cv.string_strict,
cv.Optional(CONF_WEIGHT, default="regular"): cv.Any(
cv.int_, validate_weight_name
),
cv.Optional(CONF_ITALIC, default=False): cv.boolean,
},
download_gfonts,
cv.Optional(CONF_REFRESH, default="1d"): cv.All(cv.string, cv.source_refresh),
}
)
GFONTS_SCHEMA = cv.All(
EXTERNAL_FONT_SCHEMA.extend(
{
cv.Required(CONF_FAMILY): cv.string_strict,
}
),
download_gfont,
)
WEB_FONT_SCHEMA = cv.All(
EXTERNAL_FONT_SCHEMA.extend(
{
cv.Required(CONF_URL): cv.string_strict,
}
),
download_web_font,
)
@ -233,6 +295,14 @@ def validate_file_shorthand(value):
data[CONF_WEIGHT] = weight[1:]
return FILE_SCHEMA(data)
if value.startswith("http://") or value.startswith("https://"):
return FILE_SCHEMA(
{
CONF_TYPE: TYPE_WEB,
CONF_URL: value,
}
)
if value.endswith(".pcf") or value.endswith(".bdf"):
return FILE_SCHEMA(
{
@ -254,6 +324,7 @@ TYPED_FILE_SCHEMA = cv.typed_schema(
TYPE_LOCAL: LOCAL_SCHEMA,
TYPE_GFONTS: GFONTS_SCHEMA,
TYPE_LOCAL_BITMAP: LOCAL_BITMAP_SCHEMA,
TYPE_WEB: WEB_FONT_SCHEMA,
}
)
@ -264,7 +335,7 @@ def _file_schema(value):
return TYPED_FILE_SCHEMA(value)
FILE_SCHEMA = cv.Schema(_file_schema)
FILE_SCHEMA = cv.All(_file_schema)
DEFAULT_GLYPHS = (
' !"%()+=,-.:/?0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz°'
@ -288,7 +359,7 @@ FONT_SCHEMA = cv.Schema(
),
cv.GenerateID(CONF_RAW_DATA_ID): cv.declare_id(cg.uint8),
cv.GenerateID(CONF_RAW_GLYPH_ID): cv.declare_id(GlyphData),
}
},
)
CONFIG_SCHEMA = cv.All(validate_pillow_installed, FONT_SCHEMA, merge_glyphs)
@ -343,8 +414,8 @@ class EFont:
elif ftype == TYPE_LOCAL:
path = CORE.relative_config_path(file[CONF_PATH])
font = load_ttf_font(path, size)
elif ftype == TYPE_GFONTS:
path = _compute_gfonts_local_path(file)
elif ftype in (TYPE_GFONTS, TYPE_WEB):
path = get_font_path(file, ftype)
font = load_ttf_font(path, size)
else:
raise cv.Invalid(f"Could not load font: unknown type: {ftype}")
@ -361,9 +432,9 @@ def convert_bitmap_to_pillow_font(filepath):
BdfFontFile,
)
local_bitmap_font_file = _compute_local_font_dir(filepath) / os.path.basename(
filepath
)
local_bitmap_font_file = external_files.compute_local_file_dir(
DOMAIN,
) / os.path.basename(filepath)
copy_file_if_changed(filepath, local_bitmap_font_file)

View file

@ -33,7 +33,9 @@ def has_remote_file_changed(url, local_file_path):
IF_MODIFIED_SINCE: local_modification_time_str,
CACHE_CONTROL: CACHE_CONTROL_MAX_AGE + "3600",
}
response = requests.head(url, headers=headers, timeout=NETWORK_TIMEOUT)
response = requests.head(
url, headers=headers, timeout=NETWORK_TIMEOUT, allow_redirects=True
)
_LOGGER.debug(
"has_remote_file_changed: File %s, Local modified %s, response code %d",

View file

@ -6,6 +6,17 @@ font:
extras:
- file: "gfonts://Roboto"
glyphs: ["\u00C4", "\u00C5", "\U000000C7"]
- file: "gfonts://Roboto"
id: roboto_web
size: 20
- file: "https://github.com/IdreesInc/Monocraft/releases/download/v3.0/Monocraft.ttf"
id: monocraft
size: 20
- file:
type: web
url: "https://github.com/IdreesInc/Monocraft/releases/download/v3.0/Monocraft.ttf"
id: monocraft2
size: 24
spi:
clk_pin: 14

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@ -812,11 +812,6 @@ image:
file: mdi:alert-outline
type: BINARY
font:
- file: "gfonts://Roboto"
id: roboto
size: 20
graph:
- id: my_graph
sensor: ha_hello_world_temperature