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Templated-PPT-Master/runtime/ppt-master/scripts/update_spec.py
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Python

#!/usr/bin/env python3
"""Propagate a spec_lock.md value change to both the lock file and svg_output/*.svg.
Examples:
python3 update_spec.py <project_path> primary=#0066AA
python3 update_spec.py <project_path> colors.text=#111111
python3 update_spec.py <project_path> \\
typography.font_family='Arial, "Microsoft YaHei", sans-serif'
v2 scope:
- `colors.*` — HEX value replacement across svg_output/*.svg (case-insensitive match).
- `typography.font_family` — replaces the inner value of every `font-family="..."`
/ `font-family='...'` attribute in svg_output/*.svg. This is a global replace:
every text element becomes the new family, regardless of role, and every
existing `typography.*_family` lock row is updated to the same value.
Bare `key=value` (no dot) is treated as `colors.key=value` for backward compat.
Other keys as independent targets (typography sizes, per-role
`typography.*_family` overrides, icons, images, canvas, forbidden) are
intentionally NOT supported — they involve attribute-scoped or semantic
replacements whose risk/benefit does not warrant bulk propagation. For
per-role family changes, edit spec_lock.md and re-author the affected pages.
"""
from __future__ import annotations
import argparse
import os
import re
import shutil
import sys
import tempfile
from pathlib import Path
from console_encoding import configure_utf8_stdio
from project_management.project_specs import parse_spec_lock as parse_lock
configure_utf8_stdio()
HEX_RE = re.compile(r"^#(?:[0-9A-Fa-f]{3,4}|[0-9A-Fa-f]{6}|[0-9A-Fa-f]{8})$")
FONT_FAMILY_RE = re.compile(r"""(font-family\s*=\s*)(["'])(.*?)\2""")
def plan_lock_values(
lock_path: Path, section: str, updates: dict[str, str]
) -> str:
"""Return a lock rewrite only after every target row validates."""
lines = lock_path.read_text(encoding="utf-8").splitlines(keepends=True)
in_section = False
found: set[str] = set()
for i, raw in enumerate(lines):
stripped = raw.rstrip("\r\n")
line_ending = raw[len(stripped) :]
if stripped.startswith("## "):
in_section = stripped[3:].strip() == section
continue
if not in_section:
continue
m = re.match(r"^(-\s+)([A-Za-z0-9_]+)(\s*:\s*)(.+?)(\s*)$", stripped)
if not m or m.group(2) not in updates:
continue
key = m.group(2)
if key in found:
raise ValueError(
f"duplicate key {key!r} under section {section!r} in {lock_path}"
)
found.add(key)
lines[i] = (
f"{m.group(1)}{key}{m.group(3)}{updates[key]}{m.group(5)}"
f"{line_ending}"
)
missing = set(updates) - found
if missing:
missing_list = ", ".join(sorted(missing))
raise KeyError(
f"key(s) {missing_list} not found under section {section!r} in {lock_path}"
)
return "".join(lines)
def _plan_color_updates(
svg_dir: Path,
old_hex: str,
new_hex: str,
) -> list[tuple[Path, str, int]]:
"""Return planned color rewrites without touching the SVG files."""
if not HEX_RE.match(old_hex) or not HEX_RE.match(new_hex):
raise ValueError(f"not a HEX color: old={old_hex!r} new={new_hex!r}")
pattern = re.compile(
rf"{re.escape(old_hex)}(?![0-9A-Fa-f])",
re.IGNORECASE,
)
planned: list[tuple[Path, str, int]] = []
for svg in sorted(svg_dir.glob("*.svg")):
text = svg.read_text(encoding="utf-8")
new_text, count = pattern.subn(new_hex, text)
if count > 0:
planned.append((svg, new_text, count))
return planned
def _plan_font_family_updates(
svg_dir: Path,
new_value: str,
) -> list[tuple[Path, str, int]]:
"""Return planned font-family rewrites without touching the SVG files."""
def replace_value(match: re.Match[str]) -> str:
prefix, quote, _inner = match.group(1), match.group(2), match.group(3)
outer = quote
if outer in new_value:
outer = "'" if quote == '"' else '"'
if outer in new_value:
raise ValueError(
f"new font_family value contains both ' and \" — cannot embed: "
f"{new_value!r}"
)
return f"{prefix}{outer}{new_value}{outer}"
planned: list[tuple[Path, str, int]] = []
for svg in sorted(svg_dir.glob("*.svg")):
text = svg.read_text(encoding="utf-8")
new_text, count = FONT_FAMILY_RE.subn(replace_value, text)
if count > 0 and new_text != text:
planned.append((svg, new_text, count))
return planned
def _publish_text_updates(updates: list[tuple[Path, str]]) -> None:
"""Publish existing text files as one rollback unit."""
if not updates:
return
targets = [path for path, _text in updates]
if len(targets) != len(set(targets)):
raise ValueError("transaction contains duplicate output paths")
for target in targets:
if not target.is_file() or target.is_symlink():
raise OSError(f"transaction target must be a regular file: {target}")
transaction_dir = Path(
tempfile.mkdtemp(
prefix=".update-spec-",
dir=targets[0].parent,
)
)
staged_dir = transaction_dir / "staged"
backup_dir = transaction_dir / "previous"
preserve_transaction = False
published: list[tuple[Path, Path]] = []
try:
staged_dir.mkdir()
backup_dir.mkdir()
staged: list[tuple[Path, Path, Path]] = []
transaction_device = transaction_dir.stat().st_dev
for index, (target, text) in enumerate(updates):
if target.parent.stat().st_dev != transaction_device:
raise OSError(
f"cannot atomically publish across filesystems: {target}"
)
staged_path = staged_dir / f"{index:06d}.new"
backup_path = backup_dir / f"{index:06d}.bak"
staged_path.write_text(text, encoding="utf-8")
shutil.copymode(target, staged_path)
shutil.copy2(target, backup_path, follow_symlinks=False)
staged.append((target, staged_path, backup_path))
try:
for target, staged_path, backup_path in staged:
os.replace(staged_path, target)
published.append((target, backup_path))
except BaseException as publish_error:
rollback_errors: list[str] = []
for target, backup_path in reversed(published):
try:
os.replace(backup_path, target)
except BaseException as rollback_error:
rollback_errors.append(
f"could not restore {target}: "
f"{type(rollback_error).__name__}: {rollback_error}"
)
if rollback_errors:
preserve_transaction = True
raise RuntimeError(
f"update_spec publish failed ({publish_error}); rollback was "
f"incomplete: {'; '.join(rollback_errors)}; recovery directory: "
f"{transaction_dir}"
) from publish_error
raise
finally:
if not preserve_transaction:
shutil.rmtree(transaction_dir, ignore_errors=True)
def replace_color_in_svgs(
svg_dir: Path, old_hex: str, new_hex: str, *, dry_run: bool = False
) -> list[tuple[Path, int]]:
"""Replace old_hex with new_hex in every .svg under svg_dir.
Returns a list of (path, replacement_count) for each changed file. The
count comes straight from re.subn so callers can spot anomalies —
e.g. one file with 50 hits when the rest have 4-8 is likely a stray
HEX literal inside <text> content rather than a styling attribute.
Two-phase: plan all file updates in memory, then publish them with rollback.
If planning or publishing fails, the original files are retained.
When dry_run=True, the planning phase still runs (so bad HEX still raises
and callers see which files would change), but no disk writes happen. The
returned list describes the would-change files.
"""
planned = _plan_color_updates(svg_dir, old_hex, new_hex)
if not dry_run:
_publish_text_updates([
(svg, new_text)
for svg, new_text, _count in planned
])
return [(path, count) for path, _text, count in planned]
def replace_font_family_in_svgs(
svg_dir: Path, new_value: str, *, dry_run: bool = False
) -> list[tuple[Path, int]]:
"""Replace the inner value of every `font-family="..."` / `font-family='...'`
attribute in every .svg under svg_dir.
Returns a list of (path, replacement_count) for each changed file.
Preserves the outer quote character when possible; if the new value contains
that same quote type, switches the outer quote to the other kind.
Two-phase: plan all file updates in memory, then publish them with rollback.
A conflicting quote style fails during planning, before files are touched.
When dry_run=True, the planning phase still runs (so the ValueError still
fires and callers see which files would change), but no disk writes happen.
The returned list describes the would-change files.
"""
planned = _plan_font_family_updates(svg_dir, new_value)
if not dry_run:
_publish_text_updates([
(svg, new_text)
for svg, new_text, _count in planned
])
return [(path, count) for path, _text, count in planned]
def main() -> int:
ap = argparse.ArgumentParser(description=__doc__, formatter_class=argparse.RawDescriptionHelpFormatter)
ap.add_argument("project_path", type=Path, help="project folder containing spec_lock.md and svg_output/")
ap.add_argument(
"assignment",
help=(
"section.key=value (e.g. colors.primary=#0066AA, "
"typography.font_family='Arial, \"Microsoft YaHei\", sans-serif'). "
"Bare key=value is treated as colors.key=value."
),
)
ap.add_argument(
"--dry-run",
"-n",
action="store_true",
help="preview which SVGs would change; do not write anything to disk.",
)
args = ap.parse_args()
project = args.project_path.resolve()
lock = project / "spec_lock.md"
svg_dir = project / "svg_output"
if not lock.exists():
print(f"error: spec_lock.md not found at {lock}", file=sys.stderr)
return 2
if not svg_dir.exists():
print(f"error: svg_output/ not found at {svg_dir}", file=sys.stderr)
return 2
if "=" not in args.assignment:
print("error: assignment must be [section.]key=value", file=sys.stderr)
return 2
lhs, new_value = args.assignment.split("=", 1)
lhs = lhs.strip()
new_value = new_value.strip()
if "." in lhs:
section, key = lhs.split(".", 1)
section = section.strip()
key = key.strip()
else:
section, key = "colors", lhs
sections = parse_lock(lock)
section_map = sections.get(section, {})
if key not in section_map:
known = {s: sorted(v) for s, v in sections.items()}
print(
f"error: {key!r} not found under `## {section}` in spec_lock.md.\n"
f"known keys: {known}",
file=sys.stderr,
)
return 2
old_value = section_map[key]
lock_changes: list[tuple[str, str, str]] = []
if section == "colors":
if not HEX_RE.match(new_value):
print(f"error: new value for colors.{key} must be a HEX color (got {new_value!r})", file=sys.stderr)
return 2
if old_value == new_value:
print(f"no change: colors.{key} already = {new_value}")
return 0
try:
planned_lock = plan_lock_values(lock, "colors", {key: new_value})
except (KeyError, ValueError) as exc:
print(f"error: {exc}", file=sys.stderr)
return 2
planned_svg = _plan_color_updates(svg_dir, old_value, new_value)
changed = [
(path, count)
for path, _text, count in planned_svg
]
lock_changes = [(key, old_value, new_value)]
if not args.dry_run:
try:
_publish_text_updates([
*(
(path, new_text)
for path, new_text, _count in planned_svg
),
(lock, planned_lock),
])
except (OSError, RuntimeError, ValueError) as exc:
print(f"error: update was not published: {exc}", file=sys.stderr)
return 2
elif section == "typography" and key == "font_family":
family_keys = [
name
for name in section_map
if name == "font_family" or name.endswith("_family")
]
lock_changes = [
(name, section_map[name], new_value)
for name in family_keys
if section_map[name] != new_value
]
if not lock_changes:
print(f"no change: all typography.*_family rows already = {new_value}")
return 0
try:
planned_lock = plan_lock_values(
lock,
"typography",
{name: new_value for name in family_keys},
)
planned_svg = _plan_font_family_updates(svg_dir, new_value)
changed = [
(path, count)
for path, _text, count in planned_svg
]
except (KeyError, ValueError) as e:
print(f"error: {e}", file=sys.stderr)
return 2
if not args.dry_run:
try:
_publish_text_updates([
*(
(path, new_text)
for path, new_text, _count in planned_svg
),
(lock, planned_lock),
])
except (OSError, RuntimeError, ValueError) as exc:
print(f"error: update was not published: {exc}", file=sys.stderr)
return 2
else:
print(
f"error: {section}.{key} is not supported by update_spec.py.\n"
f"v2 supports: colors.* (HEX), typography.font_family.\n"
f"Edit spec_lock.md and the affected SVGs by hand for other changes.",
file=sys.stderr,
)
return 2
if args.dry_run:
for lock_key, previous, replacement in lock_changes:
print(
f"[dry-run] spec_lock.md: "
f"{section}.{lock_key} {previous} → {replacement}"
)
print(f"[dry-run] svg_output/: {len(changed)} file(s) would be updated")
else:
for lock_key, previous, replacement in lock_changes:
print(
f"spec_lock.md: {section}.{lock_key} {previous} → {replacement}"
)
print(f"svg_output/: {len(changed)} file(s) updated")
for p, n in changed:
suffix = "replacement" if n == 1 else "replacements"
print(f" - {p.name} ({n} {suffix})")
return 0
if __name__ == "__main__":
sys.exit(main())