chore(ci): make sponsor blurb append idempotent regardless of input

[jdx]

Summary

#488 added a grep -Fqx '## 💚 Sponsor aube' exact-line check that skips the append when the canonical heading is already present. That handles re-runs of this workflow, but not the failure mode that just bit mise:

• mise v2026.5.4 shipped two Sponsor mise sections — communique started including its own ## Sponsor mise (no heart emoji) in the generated body, the equivalent exact-match check in mise missed it, and the workflow appended the canonical block on top. Fixed in jdx/mise#9745 and the v2026.5.4 release notes were edited by hand.

The same drift can happen here. aube's check is grep -Fqx '## 💚 Sponsor aube' (fixed-string, full-line), so a ## Sponsor aube heading from communique would not match → duplicate block.

Fix

Switch to a strip-and-reappend pattern (matches what the same step in hk, fnox, and communique already do): pipe the body through a tiny awk filter that drops any ## .*Sponsor aube heading and everything after it, plus trailing blank lines, then append the canonical block.

Idempotent regardless of whether the body already contains a sponsor section, in which variant, or none at all.

Test plan

Simulated locally against four shapes — the existing canonical body (re-run case), a body containing ## Sponsor aube (no emoji, the failure mode), a body with no sponsor section at all, and a body with trailing blank lines. Each produces exactly one ## 💚 Sponsor aube block with one blank line of separation. actionlint is clean on the modified workflow.

• Next tagged release shows exactly one ## 💚 Sponsor aube section.

🤖 Generated with Claude Code

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Note

Low Risk
Low risk CI-only change, but it alters release-note editing logic and could affect the final GitHub release body formatting if the awk trimming behaves unexpectedly.

Overview
Updates the release-plz workflow’s “Append en.dev sponsor blurb” step to be fully idempotent by stripping any existing Sponsor aube section (emoji or non-emoji heading) and trailing blank lines before re-appending the canonical sponsor block.

This replaces the prior exact-line grep check so re-runs or communique-generated sponsor headings no longer produce duplicate sponsor sections in GitHub release notes.

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[greptile-apps]

Greptile Summary

Replaces the previous grep -Fqx early-exit guard in the "Append en.dev sponsor blurb" step with an awk strip-and-reappend pattern, closing the gap where a ## Sponsor aube heading emitted by communique (without the heart emoji) would bypass the old exact-match check and cause a duplicate sponsor block.

• The new awk filter scans the fetched release body, exits as soon as it encounters any line matching ^## .*Sponsor aube, and buffers blank lines so they are only flushed when a non-blank line follows — silently dropping trailing whitespace before the sponsor section.
• The filtered body (trimmed) is then prefixed to the canonical heredoc block and written to the release notes, producing exactly one ## 💚 Sponsor aube section on every run regardless of prior state.

Confidence Score: 5/5

Safe to merge — the change is a targeted, well-scoped replacement of a single workflow step with no functional side-effects on other jobs.

The awk logic is correct: blank-line buffering properly suppresses trailing whitespace, the pattern ^## .*Sponsor aube[[:space:]]*$ matches both the emoji and no-emoji variants, and the exit correctly truncates everything from the first match onward. Command-substitution stripping of trailing newlines is accounted for. The strip-and-reappend approach is already proven in sibling projects (hk, fnox, communique). No credentials, secrets, or external service calls are modified.

No files require special attention.

Important Files Changed

Filename	Overview
.github/workflows/release-plz.yml	Replaces an exact-match grep guard with an awk strip-and-reappend pattern, making the sponsor-blurb append idempotent against both the canonical heading and the no-emoji variant that communique can emit.

_{Reviews (1): Last reviewed commit: "chore(ci): make sponsor blurb append ide..." | Re-trigger Greptile}