feat(rust): port ci scopes-send to native Rust (Phase 1.4)

[jd]

First ci command to go native. Straight HTTP POST to Mergify
carrying the scopes detected for a pull request, no new
infrastructure needed beyond what the config pilot already
established.

What ports natively

mergify ci scopes-send [-r REPO] [-p NUMBER] [-t TOKEN] [-u URL] [-s SCOPE...] [--scopes-json FILE] [--scopes-file FILE]:

1. Resolves the repository: --repository flag → GITHUB_REPOSITORY
   env → error.
2. Resolves the pull-request number: --pull-request flag →
   GITHUB_EVENT_PATH JSON (.pull_request.number) → None.
   When None the command prints a skip message to stderr and
   returns 0 — matches Python's "no PR, nothing to send".
3. Resolves the token: --token flag → MERGIFY_TOKEN →
   GITHUB_TOKEN → error.
4. Resolves the API URL: --api-url flag → MERGIFY_API_URL →
   https://api.mergify.com.
5. Collects scopes from up to three sources (combined in order):
   --scope repeated flags, --scopes-json (Pydantic
   DetectedScope dump), --scopes-file (plain text).
6. POSTs {"scopes": [...]} to
   /v1/repos/<repo>/pulls/<number>/scopes via the HTTP client.

--file is a hidden deprecated alias for --scopes-json.
When used, the command prints a deprecation warning to stderr
and proceeds — matches Python's click.echo(..., err=True).

Layout

New mergify-ci crate under crates/. The scopes_send
module is self-contained (duplicates resolve_token /
resolve_api_url from mergify-config::simulate for now —
they factor into mergify-core in a follow-up refactor PR
once another command needs them).

The binary's dispatch gains a Ci subcommand group, with
scopes-send as its only native variant today. Everything else
under ci (git-refs, scopes, scopes-send siblings)
still falls through to the Python shim. The native-intent
heuristic in detect_native now recognizes both the config
and ci prefixes.

Tests

11 new unit tests in mergify-ci::scopes_send:

• Repository resolution: flag, env fallback, error
• Pull-request resolution: explicit, from event JSON, missing
• JSON file parsing (DetectedScope shape)
• Text file parsing (trims + strips blanks)
• End-to-end wiremock: combined scopes from all three sources
• End-to-end wiremock: deprecated --file emits warning
• End-to-end wiremock: skip-on-no-PR early-out

PORT_STATUS.toml flips ci scopes-send from shimmed to
native. The port-guard test stays green.

Binary size: 8.3 MB → 8.4 MB. 51 Rust tests total.

Co-Authored-By: Claude Opus 4.7 (1M context) noreply@anthropic.com

Depends-On: #1322

[jd]

This pull request is part of a Mergify stack:

#	Pull Request	Link
1	build(packaging): switch wheel build to maturin, ship Rust binary alongside Python source	#1321
2	chore(python): drop config validate/simulate Python code, now native in Rust	#1322
3	feat(rust): port ci scopes-send to native Rust (Phase 1.4)	#1300	👈
4	feat(rust): port queue pause and unpause to native Rust (Phase 1.5)	#1301
5	feat(rust): port ci git-refs and ci queue-info to native Rust (Phase 1.6)	#1302

[mergify]

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• depends-on = Mergifyio/mergify-cli#1321 [⛓️ build(packaging): switch wheel build to maturin, ship Rust binary alongside Python source #1321 [stack]]
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• depends-on = Mergifyio/mergify-cli#1321 [⛓️ build(packaging): switch wheel build to maturin, ship Rust binary alongside Python source #1321 [stack]]
• depends-on = Mergifyio/mergify-cli#1322 [⛓️ chore(python): drop config validate/simulate Python code, now native in Rust #1322 [stack]]

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[jd]

Revision history

#	Type	Changes	Reason	Date
1	initial	86a41aa	2026-04-23 19:02 UTC
2	rebase	86a41aa → 0bbac0d	2026-04-23 19:02 UTC
3	rebase	0bbac0d → 5d204df	2026-04-24 13:41 UTC
4	rebase	d362a75 → b37daf9		2026-04-27 07:03 UTC
5	rebase	b37daf9 → 83b1aac		2026-04-28 06:48 UTC
6	rebase	83b1aac → 34ecd5c		2026-04-28 14:09 UTC
7	rebase	34ecd5c → 649bca2		2026-04-29 07:02 UTC
8	rebase	649bca2 → ab07af0		2026-04-29 09:06 UTC
9	rebase	ab07af0 → a0a5e36		2026-04-29 11:05 UTC
10	rebase	a0a5e36 → 16c4ea5		2026-04-29 13:21 UTC
11	rebase	16c4ea5 → 33da35f		2026-04-30 08:23 UTC
12	content	33da35f → 0f96088		2026-04-30 09:29 UTC
13	content	0f96088 → b6ffa74		2026-04-30 12:09 UTC
14	rebase	b6ffa74 → 1c79bf4		2026-04-30 13:08 UTC
15	rebase	1c79bf4 → ca1ea46		2026-04-30 13:30 UTC
16	rebase	ca1ea46 → 3f54bf1		2026-04-30 14:06 UTC

[mergify]

@jd this pull request is now in conflict 😩

[Copilot]

Pull request overview

Ports the first mergify ci command (ci scopes-send) from the Python shim to a native Rust implementation, enabling direct HTTP POST of detected scopes to the Mergify API while keeping other ci subcommands shimmed.

Changes:

• Add a new mergify-ci crate implementing ci scopes-send (options resolution + scope collection + POST).
• Extend mergify Rust binary dispatch to recognize ci scopes-send as a native subcommand.
• Mark ci scopes-send as native in PORT_STATUS.toml and update Cargo dependencies/lockfile accordingly.

Reviewed changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
crates/mergify-cli/src/main.rs	Adds ci subcommand parsing + native dispatch to mergify-ci::scopes_send.
crates/mergify-cli/Cargo.toml	Adds path dependency on the new mergify-ci crate.
crates/mergify-ci/src/scopes_send.rs	Implements native ci scopes-send logic + unit/integration-style wiremock tests.
crates/mergify-ci/src/lib.rs	Exposes scopes_send module for the new crate.
crates/mergify-ci/Cargo.toml	Defines new crate metadata and dependencies for the CI subcommands.
PORT_STATUS.toml	Flips ci scopes-send from shimmed to native.
Cargo.lock	Adds mergify-ci and related dependency updates.

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