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‎AGENTS.md‎

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# Agent Guidelines for gramps-project/addons-source
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This document specifies rules and conventions that agents should follow when
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making changes to this repository.
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For the normative addon rules — MUST / SHOULD / MAY, with the origin of
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each rule (upstream PR, maintainer ruling, Mantis id) cited inline — see
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[docs/addon-development/16-guidelines.md](docs/addon-development/16-guidelines.md)
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from the Addon Development manual (PR 994). This document covers the
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hands-on agent workflow around those rules.
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## Repository Overview
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`addons-source` holds the source code for third-party Gramps addons —
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gramplets, views, tools, reports, importers/exporters, filter rules, database
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backends, and other plugins that are not part of Gramps core. It is one of
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three tightly-linked repositories:
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- **`gramps`** — Gramps core (the application these addons plug into).
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- **`addons-source`** (this repo) — addon source code, developed here.
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- **`addons`** — built `.addon.tgz` packages and listing JSON consumed by the
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in-app Plugin Manager. Populated from this repo via `make.py`; not edited
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by hand except by the maintainer doing a release build.
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There is no unified build or CI pipeline for the whole repo (the checked-in
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`.travis.yml` is stale/unused) — each addon is largely independent.
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## Branch Model
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Branches are per Gramps major or feature release, e.g. `maintenance/gramps60`,
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`maintenance/gramps61` — not one branch per patch release. **Almost all addon
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work should target the maintenance branch matching the current released
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Gramps version.** A `master` branch exists but is not currently used for
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addon work.
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Pick the branch carefully:
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- When creating a new addon or fixing an existing one, branch from
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`origin/maintenance/gramps6X` (the current release line), not from a local
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tracking branch that may carry unrelated WIP commits.
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- When opening the PR, target that same branch on
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`gramps-project/addons-source`.
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- Before pushing, sync/rebase against upstream (`git pull --rebase`) so the
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PR applies cleanly.
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All PRs must come from a personal fork, never from a branch pushed directly
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to `gramps-project/addons-source` (see `CONTRIBUTING.md`, "Commit Your
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Changes": "you want to put your changes into _your_ fork, _not_ the upstream
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`gramps-project/addons-source` repository").
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Weblate translation PRs are the one exception where commits must **not** be
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squashed on merge; everything else can be merged/rebased normally.
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## Repository Layout
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Each addon is a single top-level directory, CamelCase-named to match its
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Python import name (e.g. `FilterRules/`, `DataEntryGramplet/`). A directory
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typically contains:
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- `AddonName.py` — the implementation.
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- `AddonName.gpr.py` — the Gramps plugin registration file (required; see
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below).
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- `po/` — translation `.po` files, managed by `make.py`.
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- `tests/` — optional unit tests (see Testing below).
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- `MANIFEST` — optional; lists extra files (docs, data) to include in the
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built package beyond the default `*.py`, `*.glade`, `*.xml`, `*.txt`,
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`locale/*/LC_MESSAGES/*.mo`.
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- `locale/` — generated `.mo` files; not something you hand-edit.
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Addon directories generally have **no `__init__.py`** (they rely on Python 3
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namespace packages) so that Gramps can add each one to `sys.path` at load
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time and other addons can `import AddonName` directly.
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## Commands
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Addon packaging/translation tasks go through `make.py`, run from the repo
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root. Point `GRAMPSPATH` at wherever *your* local Gramps checkout lives (it
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defaults to `../../..`, i.e. it assumes `make.py` is being invoked from one
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level inside a sibling-layout workspace — don't rely on that default, always
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set it explicitly), and make sure that checkout has the matching branch
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checked out too (e.g. `maintenance/gramps61` in core when building against
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`gramps61` here). Setting `LANGUAGE=en_US.UTF-8` is no longer required on
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Gramps v6.0 and later:
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```bash
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GRAMPSPATH=/path/to/your/gramps python3 make.py gramps61 build AddonDirectory
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```
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Common subcommands (first positional arg is the branch/version tag, e.g.
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`gramps61`):
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- `init AddonDirectory [lang]` — scaffold dirs / `.pot` for a new addon, or
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an initial `po/<lang>-local.po`.
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- `update AddonDirectory <lang>` — refresh a language `.po` from the `.pot`.
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- `compile [AddonDirectory|all]` — compile `.po` → `.mo`.
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- `build [AddonDirectory|all]` — produce the downloadable `.addon.tgz`.
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- `listing [AddonDirectory|all]` — generate/update the Plugin Manager
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listing JSON.
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- `clean AddonDirectory` — strip generated files (`locale/`, `*.pot`, etc.)
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before committing.
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- `manifest-check` — validate `MANIFEST` files.
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- `as-needed` — build/list/clean only what's out of date, repo-wide.
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Unlike `GRAMPSPATH`, the `build`/`listing`/`check` subcommands write to a
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**hardcoded relative path**, `../addons/<version>/...` — this isn't a
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convention, it's how `make.py` itself resolves the output location, so it
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only works if you've cloned the `addons` repo as a sibling of
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`addons-source` (see `MAINTAINERS.md` for the recommended three-repo
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workspace layout: `gramps` / `addons` / `addons-source` side by side). You
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don't need that sibling checkout at all unless you're packaging/publishing
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an addon.
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You do not need `make.py` just to write/test an addon's Python code — only
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when packaging, translating, or updating the listing.
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## Testing
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Not every addon has tests, but when adding or fixing one, add regression
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tests under `AddonName/tests/`, mirroring existing examples (`Form/tests/`,
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`DataEntryGramplet/tests/`, `Sqlite/tests/`, `FilterRules/tests/`).
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Conventions here differ from Gramps core:
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- Test files are named `test_*.py` (pytest-style), **not** the `*_test.py`
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suffix core Gramps uses — `unittest discover` here is invoked per-addon or
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from the repo root without the core `-p "*_test.py"` pattern.
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- Still use the `unittest` framework (`unittest.TestCase`), not `pytest`
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APIs, even though filenames follow the `test_*.py` convention.
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- `AddonName/tests/__init__.py` should be **empty**. Do not add
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`gi.require_version(...)` pinning there or in individual test modules —
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see GTK/GDK below.
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- Because the addon directory has no `__init__.py`, test modules need a
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`sys.path` hack to import it as a namespace package:
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```python
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ADDON_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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if ADDON_DIR not in sys.path:
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sys.path.insert(0, ADDON_DIR)
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```
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then `from AddonName.addonmodule import SomeClass`.
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- Build test data programmatically against a real (temp-dir) database rather
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than relying on fixtures that don't exist in this repo:
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```python
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from gramps.gen.db.utils import make_database
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from gramps.gen.db import DbTxn
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db = make_database("sqlite")
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db.load(tempfile.mkdtemp(prefix="myaddon_"))
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with DbTxn("build test db", db) as txn:
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...
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```
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- If a test needs `gramps.gen.filters.CustomFilters`, call
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`reload_custom_filters()` **before** importing the `CustomFilters` name
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from `gramps.gen.filters` — that function rebinds the module-level global
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rather than mutating it in place, so importing the name first leaves you
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with a stale `None`.
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### GTK / GDK version pinning
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The repo-root `tests/__init__.py` pins `gi.require_version("Gtk", "3.0")` and
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`gi.require_version("Gdk", "3.0")` for the whole test suite (added in PR
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#950). `gi.require_version` sets process-global state, so **individual addon
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test files should not re-pin GTK/GDK** — that's now redundant. A new test
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module that imports something pulling in `gramps.gui.*` (which happens at
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import time for most GUI-facing addons) only needs a guard for hosts with no
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PyGObject at all:
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```python
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try:
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import gi
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except ImportError as err:
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raise unittest.SkipTest("PyGObject not available: %s" % err)
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```
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Do not add `gi.require_version(...)` calls back into new test files — if you
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see them in an addon you're touching, they're safe to remove as redundant
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(see the `Themes` addon's `tests/__init__.py` cleanup for precedent), but
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don't remove them from files you aren't otherwise changing.
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### Running tests
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```bash
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export GRAMPS_RESOURCES=/path/to/gramps/build/share # built Gramps checkout
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export GDK_BACKEND=-
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python3 -m unittest AddonName.tests.test_something -v
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```
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Run from the `addons-source` repo root so the addon's namespace package
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resolves.
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## Windows Development
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Per `CONTRIBUTING.md`, addons here are developed and tested primarily on
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Linux; Windows and macOS are possible but far less thoroughly reviewed.
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"Windows" itself covers two different things agents should not conflate:
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- **MSYS2** — the POSIX-like shell/toolchain environment Gramps's own
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Windows installer is built with. A shell running inside MSYS2 behaves like
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a Linux shell (`bash`, POSIX paths) and can run this repo's `make.py` and
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`unittest` invocations normally.
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- **Native Windows** — a bare `cmd.exe` or PowerShell host with no MSYS2 or
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WSL layer underneath. The commands and paths used elsewhere in this
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document (`make.py`, `python3 -m unittest ...`, the `GRAMPSPATH` /
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`GRAMPS_RESOURCES` env vars) assume a POSIX shell and are not verified
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against native `cmd`/PowerShell.
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If you are running as an agent on a native Windows host:
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- Reading, writing, and refactoring addon Python code is fine — the code
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itself is portable.
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- Do not run this repo's tests or `make.py` directly in `cmd`/PowerShell and
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report the result as a real pass/fail — the tooling isn't validated there,
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so a failure may be environmental noise rather than an actual regression.
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- Ask the user to run the same command inside an MSYS2 shell, WSL, or a
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Linux container/VM and share the output, rather than guessing at the
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result yourself.
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If you're already inside MSYS2 or WSL, treat it as a POSIX shell and follow
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the rest of this document (Commands, Testing) as written.
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## Code Style
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- Every new `.py` file needs the same GPL-2.0-or-later header with copyright
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used throughout Gramps core.
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- Group imports under comment-banner sections (`Standard Python modules`,
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`GTK/Gnome modules`, `Gramps modules`), matching the style already used
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across this repo (e.g. `FilterRules/isfamilyfiltermatchevent.py`).
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- [Black](https://black.readthedocs.io/) formatting is not currently required
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for addons — there's no checked-in CI workflow enforcing it here, though
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that may change in the future. The existing codebase is largely
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Black-formatted, so running `black <file>` on files you're already
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touching is a reasonable default.
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- Docstrings: concise; full Sphinx `:param:`/`:returns:` style only when the
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parameters aren't already obvious from the signature.
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## Internationalization
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Addons manage their own translations, separately from Gramps core, though
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both go through the same Weblate instance: strings already translated in
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Gramps core are matched first, so those strings are excluded from the
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Weblate _Addons_ component and don't need separate translation there. At the
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top of an addon's main module:
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```python
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from gramps.gen.const import GRAMPS_LOCALE as glocale
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try:
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_trans = glocale.get_addon_translator(__file__)
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except ValueError:
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_trans = glocale.translation
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_ = _trans.gettext
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```
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(`get_addon_translator` raises `ValueError` if the addon has no
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`locale/` translations yet — fall back to the core translator rather than
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letting the import crash.) Use `ngettext(singular, plural, n)` instead of a
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single `_()` call for any string that counts a noun, for the same reason as
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Gramps core: many languages have plural rules English doesn't, and only
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`ngettext` lets gettext apply the target language's actual rule.
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## Plugin Registration (`.gpr.py`)
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Every addon needs an `AddonName.gpr.py` alongside `AddonName.py`:
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```python
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register(
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RULE, # or TOOL, GRAMPLET, REPORT, VIEW, GENERAL, IMPORT, EXPORT, ...
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id="uniqueid",
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name=_("Human-Readable Name"),
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description=_("What it does."),
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version="1.0.0",
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gramps_target_version="6.1",
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status=STABLE, # or UNSTABLE
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fname="AddonName.py",
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authors=["Author Name"],
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authors_email=["author@example.com"],
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maintainers=["Maintainer Name"],
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maintainers_email=["maintainer@example.com"],
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help_url="Addon:WikiPageName",
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... # PTYPE-specific attributes, e.g. ruleclass/namespace for RULE
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)
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```
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`gramps_target_version` and `version` are required. `help_url` should point
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at the addon's Gramps wiki page (`Addon:PageName`), not a GitHub URL.
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`maintainers`/`maintainers_email` identify who currently maintains the
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addon and may differ from `authors`/`authors_email` (the original author)
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once upkeep passes to someone else.
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> **Do not manually change `version` in a PR.** The `MAJOR.MINOR.PATCH`
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> version in `.gpr.py` is bumped automatically by the `addons` repo's
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> packaging build (`make.py`) when a change is released — the patch
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> component increments on its own. Hand-editing it in a source PR just
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> creates spurious diffs and can conflict with what the release build
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> assigns; leave it as-is unless you're intentionally doing a MAJOR/MINOR
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> bump for a breaking addon change.
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## Bug Reports and Commit Messages
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Bugs against addons are tracked in two places: the shared
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[Gramps Mantis BT](https://gramps-project.org/bugs/view_all_bug_page.php)
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and, informally, the [Gramps Discourse forum](https://gramps.discourse.group/)
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— many addon issues start as a discourse thread rather than a Mantis report.
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Unlike Gramps core, this repo has no automated changelog tooling parsing
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commit messages, so there's no required `Fixes #N` keyword syntax — just
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describe *why* the change was made, and link whatever report (Mantis bug or
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discourse URL) motivated it if one exists. Don't invent a Mantis bug number
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if you only have a discourse link or user report — link what you actually
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have.

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