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Add GPL-3.0 license, PCM packaging, and cross-platform deploy

Browse Source 
- LICENSE.txt (GPL-3.0-or-later), declared in the new PCM v2
  metadata.json (validated against the official schema)
- tools/build_package.py builds the registry-layout addon zip in dist/
  plus the submission metadata copy with sha256/sizes and a release
  download_url derived from the Gitea homepage
- tools/deploy.py: symlink/copy deploy for Linux, macOS and Windows
- 64 px resources/icon.png for the PCM listing
- README: Linux setup/dev commands, packaging and license sections

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
janik
2026-07-15 14:55:24 +07:00
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__pycache__/ __pycache__/
*.pyc *.pyc
.pytest_cache/ .pytest_cache/
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under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.
README.md
+41 -10
View File
@@ -16,14 +16,21 @@ SWIG API. Requires KiCad **10.0.1+**.
1. **Enable the API server**: KiCad → Preferences → Plugins → check 1. **Enable the API server**: KiCad → Preferences → Plugins → check
*Enable KiCad API*. *Enable KiCad API*.
2. **Check the interpreter path** on the same page: should be 2. **Check the interpreter path** on the same page: should point at the
`C:\Program Files\KiCad\10.0\bin\pythonw.exe` (after a 9→10 upgrade it KiCad 10 Python, e.g. `C:\Program Files\KiCad\10.0\bin\pythonw.exe`
on Windows or `/usr/bin/python3` on Linux (after a 9→10 upgrade it
can point at KiCad 9). can point at KiCad 9).
3. **Deploy**: 3. **Deploy** (dev checkout; end users install the PCM zip instead, see
*Packaging*):
```powershell ```powershell
powershell -ExecutionPolicy Bypass -File deploy.ps1 # junction (dev) powershell -ExecutionPolicy Bypass -File deploy.ps1 # junction (dev)
powershell -ExecutionPolicy Bypass -File deploy.ps1 -Mode Copy powershell -ExecutionPolicy Bypass -File deploy.ps1 -Mode Copy
``` ```
Linux / macOS (also works on Windows with developer mode):
```bash
python3 tools/deploy.py # symlink (dev)
python3 tools/deploy.py --copy
```
4. **Restart KiCad**; first load builds the plugin venv (numpy, scipy, 4. **Restart KiCad**; first load builds the plugin venv (numpy, scipy,
matplotlib, PySide6 — takes minutes; the Ω button appears when done). matplotlib, PySide6 — takes minutes; the Ω button appears when done).
If stuck: Preferences → Plugins → *Recreate Plugin Environment*. If stuck: Preferences → Plugins → *Recreate Plugin Environment*.
@@ -63,8 +70,12 @@ SWIG API. Requires KiCad **10.0.1+**.
`VIA_PLATING_UM = 18` in `fill_resistance/config.py`. Vias are always `VIA_PLATING_UM = 18` in `fill_resistance/config.py`. Vias are always
plated; capped vs uncapped does not change the layer-to-layer DC path plated; capped vs uncapped does not change the layer-to-layer DC path
(the ≥5 µm cap sits over the hole mouth in parallel with the (the ≥5 µm cap sits over the hole mouth in parallel with the
annular-ring contact, not in series). A barrel passing an antipad annular-ring contact, not in series). Per layer a barrel attaches to
bridges the layers above/below with the full barrel length. the fill cell under it, or to the nearest copper cell within the pad
footprint plus one grid cell — fills joined by **thermal-relief
spokes** still connect; wider antipads do not, and the barrel bridges
the layers above/below with the full barrel length. Barrels that reach
fill on fewer than two layers carry no current and are reported.
- Tracks and pad copper (other than the selected contacts) are **not** - Tracks and pad copper (other than the selected contacts) are **not**
part of the conductor model — zone fills + barrels only. part of the conductor model — zone fills + barrels only.
- **Solder buildup on mask openings** (dialog checkbox, **off by - **Solder buildup on mask openings** (dialog checkbox, **off by
@@ -82,7 +93,11 @@ SWIG API. Requires KiCad **10.0.1+**.
with uniform surface density, so |J| ramps across the contact area with uniform surface density, so |J| ramps across the contact area
(R = ΔV̄/I from area-averaged terminal potentials); or (R = ΔV̄/I from area-averaged terminal potentials); or
**equipotential** — ideal bonded lug (Dirichlet). The two bracket a **equipotential** — ideal bonded lug (Dirichlet). The two bracket a
real contact: R_equipotential ≤ R_real ≤ R_uniform. real contact: R_equipotential ≤ R_real ≤ R_uniform. If the selected
fills form several disconnected copper groups that each touch both
terminals (e.g. planes joined only through the bolted lugs), only the
equipotential model is well-defined; the uniform model stops with an
error instead of prescribing an arbitrary split.
- Fields are reported at the dialog's test current; power scales with I². - Fields are reported at the dialog's test current; power scales with I².
- **Skin effect (f > 0)**: per-layer effective sheet resistance from the - **Skin effect (f > 0)**: per-layer effective sheet resistance from the
exact 1D foil-diffusion solution `Zs = τρ·coth(τt)`, `τ = (1+j)/δ` exact 1D foil-diffusion solution `Zs = τρ·coth(τt)`, `τ = (1+j)/δ`
@@ -96,8 +111,8 @@ SWIG API. Requires KiCad **10.0.1+**.
minimum-dissipation one, AC results are a rigorous **lower bound**. minimum-dissipation one, AC results are a rigorous **lower bound**.
Rule of thumb for 70 µm foil: skin is negligible below ~300 kHz Rule of thumb for 70 µm foil: skin is negligible below ~300 kHz
(δ = 173 µm at 142 kHz), ~+11 % at 1 MHz. (δ = 173 µm at 142 kHz), ~+11 % at 1 MHz.
- 5-point FDM per layer on an auto-sized shared grid (~500 k cells total - 5-point FDM per layer on an auto-sized shared grid (~2 M cells total
across layers by default). Direct sparse solve up to 700 k unknowns, across layers by default). Direct sparse solve up to 2.5 M unknowns,
Jacobi-CG above. Discretization error typically ≲ 2 % at defaults — Jacobi-CG above. Discretization error typically ≲ 2 % at defaults —
halve the cell size and compare to judge convergence. halve the cell size and compare to judge convergence.
@@ -111,16 +126,32 @@ Every run writes `geometry_dump.json`; re-solve without KiCad:
[--out DIR] [--force-iterative] [--out DIR] [--force-iterative]
``` ```
Dev environment, tests, headless extraction: Dev environment, tests, headless extraction (Windows shown; on
Linux/macOS use `.venv/bin/python`):
```powershell ```powershell
uv venv --python 3.11 .venv uv venv --python 3.11 .venv
uv pip install --python .venv\Scripts\python.exe kicad-python numpy scipy matplotlib pytest uv pip install --python .venv\Scripts\python.exe kicad-python numpy scipy matplotlib pytest
.venv\Scripts\python.exe -m pytest tests -q # incl. exact analytic cases .venv\Scripts\python.exe -m pytest tests -q # incl. exact analytic cases
.venv\Scripts\python.exe smoke\smoke_probe.py # IPC API probe vs live KiCad .venv\Scripts\python.exe tools\api_probe.py # IPC API probe vs live KiCad
.venv\Scripts\python.exe -m fill_resistance.board_io dump.json [NET] # extract only .venv\Scripts\python.exe -m fill_resistance.board_io dump.json [NET] # extract only
``` ```
## Packaging / publishing
`python tools/build_package.py` builds the PCM addon zip in `dist/`
(installable right away via Plugin and Content Manager → *Install from
File*) plus `dist/metadata-registry.json` with the SHA-256 and sizes
filled in. To publish: upload the zip to a release, set `download_url`
(and the `homepage` resource in `metadata.json`), then submit the
registry copy as `packages/th.co.b4l.fill-resistance/metadata.json` in a
merge request to <https://gitlab.com/kicad/addons/metadata>. Icons are
regenerated with `python tools/gen_icons.py`.
## License
GPL-3.0-or-later — see [LICENSE.txt](LICENSE.txt).
## Troubleshooting ## Troubleshooting
- **No toolbar button**: venv still building (wait), or build failed → - **No toolbar button**: venv still building (wait), or build failed →
metadata.json
+26
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@@ -0,0 +1,26 @@
{
"$schema": "https://go.kicad.org/pcm/schemas/v2",
"name": "Fill Resistance",
"description": "DC/AC resistance of copper zone fills between two contacts, single- or multi-layer with via coupling, with current and power density maps.",
"description_full": "Computes the DC resistance of copper zone fills between two contacts (marker rectangles on User.1/User.2 and/or selected pads), single- or multi-layer: the chosen net's fills are solved as coupled finite-difference sheets linked by the net's via and through-hole-pad barrels.\n\nShows per-layer rasterized maps, potential, current density and power density, reports per-via currents (via ampacity) and total dissipation at a selectable test current. Optional per-run frequency applies the exact 1D foil skin-effect correction (AC results are a rigorous lower bound). PNGs, a text summary and a re-solvable geometry dump are saved per run.\n\nNote: the first load builds the plugin's Python environment (numpy, scipy, matplotlib, PySide6) and can take several minutes.",
"identifier": "th.co.b4l.fill-resistance",
"type": "plugin",
"author": {
"name": "janik",
"contact": {
"email": "oltmanns@b4l.co.th"
}
},
"license": "GPL-3.0-or-later",
"resources": {
"homepage": "https://git.b4l.co.th/B4L/kicad-zone-resistance"
},
"versions": [
{
"version": "1.0.0",
"status": "stable",
"kicad_version": "10.0",
"runtime": "ipc"
}
]
}
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tools/build_package.py
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@@ -0,0 +1,109 @@
"""Build the PCM addon zip (KiCad Plugin and Content Manager).
python tools/build_package.py
Archive layout per https://dev-docs.kicad.org/en/addons/:
metadata.json package copy (must NOT carry download_* keys)
resources/icon.png 64x64 listing icon
plugins/ the IPC plugin: plugin.json, entrypoint,
fill_resistance/, icons/, requirements.txt
Writes dist/<identifier>_<version>.zip and dist/metadata-registry.json -
the submission copy for gitlab.com/kicad/addons/metadata with
download_sha256 / download_size / install_size filled in; set
download_url to the released zip before submitting. The zip also works
directly via PCM "Install from File".
"""
from __future__ import annotations
import hashlib
import json
import sys
import zipfile
from pathlib import Path
ROOT = Path(__file__).resolve().parent.parent
PLUGIN_FILES = [
"plugin.json",
"fill_res_action.py",
"requirements.txt",
"LICENSE.txt",
]
PLUGIN_GLOBS = [
("fill_resistance", "*.py"),
("icons", "*.png"),
]
def collect() -> list[tuple[Path, str]]:
"""[(source path, archive name), ...] for the package zip."""
entries = [(ROOT / "metadata.json", "metadata.json"),
(ROOT / "resources" / "icon.png", "resources/icon.png")]
for name in PLUGIN_FILES:
entries.append((ROOT / name, f"plugins/{name}"))
for sub, pattern in PLUGIN_GLOBS:
for p in sorted((ROOT / sub).glob(pattern)):
entries.append((p, f"plugins/{sub}/{p.name}"))
missing = [str(src) for src, _ in entries if not src.is_file()]
if missing:
sys.exit("missing package files:\n " + "\n ".join(missing)
+ "\n(run tools/gen_icons.py for resources/icon.png)")
return entries
def main() -> int:
meta = json.loads((ROOT / "metadata.json").read_text(encoding="utf-8"))
version = meta["versions"][0]
bad = [k for k in version if k.startswith("download")]
if bad:
sys.exit(f"metadata.json must not carry {bad} - those keys belong "
f"only in the registry submission copy")
if "CHANGE-ME" in json.dumps(meta):
print("warning: metadata.json still contains CHANGE-ME placeholders")
entries = collect()
dist = ROOT / "dist"
dist.mkdir(exist_ok=True)
zip_path = dist / f"{meta['identifier']}_{version['version']}.zip"
install_size = 0
with zipfile.ZipFile(zip_path, "w", zipfile.ZIP_DEFLATED) as z:
for src, arcname in entries:
z.write(src, arcname)
install_size += src.stat().st_size
data = zip_path.read_bytes()
sha256 = hashlib.sha256(data).hexdigest()
registry = json.loads(json.dumps(meta)) # deep copy
registry.pop("$schema", None)
# Gitea/GitHub release-asset URL convention; create the release with
# tag v<version> and attach the zip unrenamed, or fix the URL up
homepage = meta["resources"].get("homepage", "https://CHANGE-ME.example")
registry["versions"][0].update({
"download_url": (f"{homepage.rstrip('/')}/releases/download/"
f"v{version['version']}/{zip_path.name}"),
"download_sha256": sha256,
"download_size": len(data),
"install_size": install_size,
})
reg_path = dist / "metadata-registry.json"
reg_path.write_text(json.dumps(registry, indent=4) + "\n",
encoding="utf-8")
print(f"wrote {zip_path} ({len(data)} bytes, {len(entries)} files)")
print(f"wrote {reg_path}")
print(f" download_sha256: {sha256}")
print(f" download_size: {len(data)}")
print(f" install_size: {install_size}")
print("next: upload the zip, set download_url (and homepage) in "
"metadata-registry.json, then submit it as "
f"packages/{meta['identifier']}/metadata.json to "
"gitlab.com/kicad/addons/metadata")
return 0
if __name__ == "__main__":
sys.exit(main())
tools/deploy.py
+69
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@@ -0,0 +1,69 @@
"""Deploy the plugin into the KiCad user plugins directory - all OSes.
python tools/deploy.py # symlink (dev; Windows may need
# developer mode -> use deploy.ps1)
python tools/deploy.py --copy # plain copy, no repo link
python tools/deploy.py --kicad-version 10.0
Plugin dir: Windows/macOS <Documents>/KiCad/<ver>/plugins
Linux ~/.local/share/kicad/<ver>/plugins
"""
from __future__ import annotations
import argparse
import shutil
import sys
from pathlib import Path
ROOT = Path(__file__).resolve().parent.parent
COPY_EXCLUDE = {".venv", ".git", "tests", "tools", "dist", "resources",
"__pycache__", ".pytest_cache", "conftest.py", "deploy.ps1",
".gitignore", "metadata.json"}
def plugins_dir(kicad_version: str) -> Path:
if sys.platform.startswith("linux"):
base = Path.home() / ".local" / "share" / "kicad"
else: # windows + macos: Documents
base = Path.home() / "Documents" / "KiCad"
return base / kicad_version / "plugins"
def main() -> int:
ap = argparse.ArgumentParser(description=__doc__)
ap.add_argument("--copy", action="store_true",
help="copy instead of symlinking the repo")
ap.add_argument("--kicad-version", default="10.0")
args = ap.parse_args()
pdir = plugins_dir(args.kicad_version)
if not pdir.is_dir():
sys.exit(f"KiCad plugins dir not found: {pdir}\n"
f"(is KiCad {args.kicad_version} installed? On Windows "
f"with a relocated Documents folder use deploy.ps1)")
dst = pdir / "fill-resistance"
if dst.is_symlink():
dst.unlink()
elif dst.exists():
shutil.rmtree(dst)
if args.copy:
shutil.copytree(
ROOT, dst,
ignore=lambda d, names: [n for n in names if n in COPY_EXCLUDE])
print(f"copied plugin to: {dst}")
else:
try:
dst.symlink_to(ROOT, target_is_directory=True)
except OSError as e:
sys.exit(f"symlink failed ({e}); on Windows enable developer "
f"mode, run elevated, or use deploy.ps1 (junction)")
print(f"symlink created: {dst} -> {ROOT}")
print("Restart KiCad (or refresh plugins) and wait for the plugin "
"venv build.")
return 0
if __name__ == "__main__":
sys.exit(main())